ДВИГАТЕЛЬ ВНУТРЕННЕГО СГОРАНИЯ, ОБОРУДОВАННЫЙ ТУРБИНАМИ С ПЕРЕПУСКНОЙ ЗАСЛОНКОЙ, И СПОСОБ ЕГО ЭКСПЛУАТАЦИИ

Изобретение может быть использовано в двигателях внутреннего сгорания с турбонаддувом. Двигатель (1) внутреннего сгорания с турбонаддувом имеет по меньшей мере два турбокомпрессора (8, 9) на выхлопных газах и по меньшей мере одну головку (2) цилиндров с по меньшей мере двумя цилиндрами (3). Каждый цилиндр (3) имеет по меньшей мере два выпускных отверстия (4а, 4b) для вывода выхлопных газов. По меньшей мере одно из выпускных отверстий выполнено как задействуемое отверстие (4а). Каждое выпускное отверстие (4а, 4b) соединено с выхлопным трубопроводом (5а, 5b). Выхлопные трубопроводы (5а) задействуемых выпускных отверстий (4а) по меньшей мере двух цилиндров (3) сливаются друг с другом с образованием первого выпускного коллектора (6а) для формирования первого общего выхлопного трубопровода (7а), который соединен с турбиной (8а) первого турбокомпрессора (8). Выхлопные трубопроводы (5b) других выпускных отверстий (4b) по меньшей мере двух цилиндров (3) сливаются друг с другом с образованием второго ...

ГОЛОВКА ЦИЛИНДРА, ИМЕЮЩАЯ НАПРАВЛЯЮЩИЙ ТОПЛИВО ЭЛЕМЕНТ

Изобретение может быть использовано в двигателях внутреннего сгорания. Головка цилиндра для двигателя внутреннего сгорания (ДВС), работающего на газообразном или жидком топливе, имеет по меньшей мере одну направляющую топливо секцию (1А). Направляющая топливо секция (1А) содержит корпус (40) клапана подачи топлива для установки клапана (50) подачи топлива, управляющего расходом топлива, камеру (20) приготовления топливно-воздушной смеси и направляющий топливо элемент (30), соединяющий корпус (40) клапана подачи топлива с камерой (20) приготовления топливно-воздушной смеси. В камере (20) приготовления топливно-воздушной смеси направляющий топливо элемент (30) выполнен за одно целое с головкой цилиндра и имеет по меньшей мере один первый канал (33) подачи топлива и по меньшей мере один второй канал (34) подачи топлива. Первый канал (33) подачи топлива и второй канал (34) подачи топлива продолжаются от корпуса (40) клапана подачи топлива до камеры (20) приготовления топливно-воздушной смеси ...

ДВИГАТЕЛЬ ВНУТРЕННЕГО СГОРАНИЯ И ЗАКРЫВАЮЩИЙ УЗЕЛ ДЛЯ НЕГО

Изобретение может быть использовано в двигателях внутреннего сгорания. Двигатель внутреннего сгорания содержит головку (6) блока цилиндров, имеющую управляемый первый клапан (8) двигателя, первый клапанный привод (10), камеру (7) сгорания и замкнутый контур рабочей текучей среды. Первый клапан (8) выполнен с возможностью избирательного открытия/закрытия камеры (7) сгорания. Первый клапанный привод (10) функционально соединен с первым клапаном (8) двигателя. Первый клапанный привод (10) содержит по меньшей мере одно впускное отверстие (11) для рабочей текучей среды и по меньшей мере одно выпускное отверстие (12) для рабочей текучей среды. Первый клапанный привод (10) расположен в замкнутом контуре рабочей текучей среды. Двигатель (1) дополнительно содержит камеру (16) головки блока цилиндров, которая образует часть замкнутого контура рабочей текучей среды и ограничена головкой (6) блока цилиндров и по меньшей мере первой крышкой (17) головки блока цилиндров. По меньшей мере одно выпускное ...

ЛИТЕЙНАЯ ФОРМА

Изобретение относится к литейному производству. Литейная форма содержит внешние части и вложенные в них стержни из формовочного материала. Внутренние стержни уложены друг на друга в несколько слоев и зажаты внешними частями и перекрывающим стержнем. Полость формы образована поверхностями внешних частей, внутренних стержней и перекрывающего стержня. В перекрывающем стержне выполнено заливочное отверстие. Литейную форму монтируют на основании и поворачивают на 180o вокруг горизонтальной оси. Литейную емкость с расплавом герметично состыковывают с литейной формой. Поворачивают емкость с формой на 180o вокруг горизонтальной оси, в результате чего расплав поступает в форму. Затем емкость отводят вверх от литейной формы. Изобретение обеспечивает получение сложных отливок ротационным литьем. 2 с. и 7 з.п.ф-лы, 2 ил.

ГОЛОВКА ЦИЛИНДРА ДВИГАТЕЛЯ ВНУТРЕННЕГО СГОРАНИЯ (ВАРИАНТЫ)

... 1. Головка цилиндра двигателя внутреннего сгорания, содержащая полость для охлаждающей жидкости, образованную наружными боковыми стенками, огневым днищем, наружной торцевой стенкой и верхней полкой, впускные и выпускные газовые каналы, колодец для топливной форсунки, направляющую втулку впускного клапана, направляющую втулку выпускного клапана, частично расположенную в бобышке выпускного канала с зазором и с выступающим в канал нижним поясом, огневое днище с седлами впускных и выпускных клапанов, бобышки со сквозными отверстиями под болты крепления головки к блоку, ребра жесткости, соединяющие крепежные бобышки, масляный канал, отличающаяся тем, что боковая стенка впускного канала перед седлом клапана имеет закругленный участок, а выпускной канал имеет диффузорно-конфузорный участок, седла впускных и выпускных клапанов выполнены со ступенькой, имеющей фиксирующую острую кромку, и запрессованы в огневое днище с высоким натягом, кроме того, введены дополнительные ребра от крепежных бобышек ...

СИСТЕМА СГОРАНИЯ ДЛЯ ДВИГАТЕЛЯ (ВАРИАНТЫ) И ГОЛОВКА БЛОКА ЦИЛИНДРОВ ДЛЯ ИСПОЛЬЗОВАНИЯ В ЭТОЙ СИСТЕМЕ

Изобретение может быть использовано в двигателях внутреннего сгорания. Система (201) сгорания для двигателя содержит головку (206) блока цилиндров и поршень (202). Головка (206) блока цилиндров имеет первую поверхность (212) головки блока цилиндров, соединенную с впускным окном, и вторую поверхность (214) головки блока цилиндров, соединенную с выпускным окном. Вторая поверхность (214) головки блока цилиндров расположена под углом (250) к первой поверхности (212) головки блока цилиндров. Поршень (202) содержит первую (218) поверхность поршня, расположенную параллельно первой (212) поверхности головки блока цилиндров и на одной линии с ней по вертикали, и вторую поверхность (220) поршня, расположенную параллельно второй поверхности (214) головки блока цилиндров и на одной линии с ней по вертикали. Имеется третья поверхность (216) головки блока цилиндров и третья поверхность (222) поршня. Третья поверхность (222) поршня расположена параллельно третьей поверхности (216) головки блока цилиндров ...

ГОЛОВКА ЦИЛИНДРОВ

Головка цилиндров включает в себя: участок нижней опорной стенки; участок внешней периферийной стенки, задающий внутри установочное пространство, в котором расположены клапаны, открывающие и закрывающие камеру сгорания, коромысла, распределительный вал, который приводит в действие коромысла и вал коромысел, поддерживающий коромысла; участок продольной стенки, проходящий вдоль распределительного вала в установочном пространстве; участок поперечной стенки, один конец которого сформирован как единое целое с участком продольной стенки; опорный участок распределительного вала, сформированный на участке поперечной стенки; опорный участок вала коромысел, сформированный на участке поперечной стенки таким, чтобы положение вала коромысел по высоте от участка нижней стенки было сдвинуто от положения распределительного вала по высоте от участка нижней стенки; и участок втулок под болты крепления головки цилиндров, сформированный на участке нижней стенки таким образом, чтобы перекрывать участок поперечной ...

СИСТЕМА ВПУСКА ВОЗДУХА ДЛЯ ТЕПЛОВОГО ДВИГАТЕЛЯ

Изобретение может быть использовано в двигателях внутреннего сгорания. Предложена система (10) впуска воздуха для теплового двигателя, размещаемая между элементом сжатия воздуха и по меньшей мере верхним участком камеры сгорания (14), выполненным в головке блока цилиндров двигателя. Система (10) впуска воздуха включает в себя головку (11) блока цилиндров, воздухозаборный коллектор (17) и по меньшей мере один воздушный впускной канал (12). Система характеризуется тем, что содержит по меньшей мере один резервуар (25) с изогнутой поверхностью, при этом резервуар обращен к наружной стороне двигателя, расположен в полости (22) головки блока цилиндров и соединен с трубчатым элементом (26), введенным в по меньшей мере один воздушный впускной канал (12). Система является компактной, облегчает сборку и эксплуатацию при минимизации веса системы, оптимизации циркуляции воздуха и обеспечении снижения перепада давления потока воздуха. 10 з.п. ф-лы, 3 ил.

БЛОК ЦИЛИНДРОВ ДВИГАТЕЛЯ ВНУТРЕННЕГО СГОРАНИЯ С ЖИДКОСТНЫМ ОХЛАЖДЕНИЕМ

Блок цилиндров ДВС с жидкостным охлаждением содержит образующие цилиндровые полости стенки, выполненные в виде пластинчатых элементов, объединенных в верхней части кольцевыми выступами с опорными и центрирующими поверхностями под установку цилиндровых втулок. В кольцевых выступах со стороны опорных поверхностей выполнены компенсирующие выемки с глубиной 1,0-1,5 мм и шириной, равной ширине опорной поверхности. Ориентация и протяженность компенсирующих выемок в блоке цилиндров определяются параллельной оси коленчатого вала хордой l дуги окружности с радиусом R, равным радиусу центрирующей поверхности кольцевого выступа, и центральным углом α, равным 35°-45°, связанными зависимостью . Изобретение позволяет повысить износостойкость деталей цилиндропоршневой группы двигателей и снижение в них удельного расхода топлива и смазочного масла на угар. 17 ил.

ГОЛОВКА ЦИЛИНДРОВ ДВИГАТЕЛЯ ВНУТРЕННЕГО СГОРАНИЯ

Изобретение предназначено для использования в двигателестроении. Головка цилиндров имеет камеру сгорания, связанную с впускным и выпускным каналами, которые выведены на одну сторону головки. Впускной канал состоит из входного участка и выполненного в форме неправильного винта выходного участка. На выходном участке впускной канал имеет поворот на 90o в вертикальной плоскости и поворот на 180o в горизонтальной плоскости вокруг оси впускного клапана. Выпускной канал состоит из выходного участка и выполненного в форме неправильного винта входного участка. Входной участок выпускного канала имеет поворот на 90o в вертикальной плоскости и поворот на 180o в горизонтальной плоскости вокруг оси выпускного клапана. Выходной участок впускного канала и входной участок выпускного канала плавно вписаны в надкамерные полости, каждая из которых выполнена в форме цилиндра, ограниченного сверху полусферой. Каналы имеют по всей длине постоянный гидравлический диаметр. Поперечные сечения каналов имеют форму ...

РАБОЧАЯ КАМЕРА ПОРШНЕВОЙ МАШИНЫ (ВАРИАНТЫ)

Камера предназначена для использования в машиностроении, а именно в поршневых машинах, для преобразования возвратно-поступательного движения поршня во вращательное движение вала и наоборот - в двигателях или компрессорах. Рабочая камера поршневой машины образована днищем поршня и, по меньшей мере, одной выемкой в головке цилиндра, или головкой цилиндра и, по меньшей мере, одной выемкой в днище поршня, или, по меньшей мере, двумя выемками, одной - в днище поршня, другой - в головке цилиндра. Стенки камеры для каждого из вариантов выполнены зеркальными для отражения волнового воздействия, а выемки имеют форму пирамиды, усеченной пирамиды, коническую форму, форму усеченного конуса, форму полусферы, сферического сегмента, параболоида, ступенчатую форму в продольном сечении рабочей камеры, форму спиралевидной или кольцевой проточки в поперечном сечении рабочей камеры. Изобретение обеспечивает повышение эффективности преобразования кинетической энергии рабочего тела в полезную работу, увеличение ...

ДВИГАТЕЛЬ ВНУТРЕННЕГО СГОРАНИЯ

Изобретение может быть использовано в двигателях внутреннего сгорания. Двигатель внутреннего сгорания включает в себя сопло 16 для впрыска топлива, в котором сопловое отверстие, которое впрыскивает топливо, предусматривается раскрывающимся в камеру сгорания из головки цилиндра двигателя внутреннего сгорания, и полый канал 20, в котором впускное и выпускное отверстия раскрываются в камеру сгорания. Канал предусматривается так, что он проникает сквозь внутренность головки цилиндра, так что струя топлива, впрыскиваемая из соплового отверстия сопла для впрыска топлива, проходит от впускного отверстия к выпускному отверстию. Канал предпочтительно конфигурируется так, что направление от впускного отверстия к выпускному отверстию соответствует направлению струи топлива, впрыскиваемой из соплового отверстия. Изобретение позволяет улучшить смешивание топлива с воздухом в камере сгорания двигателя, уменьшить дымность и улучшить тепловой КПД двигателя. 7 з.п. ф-лы, 10 ил.

КОНСТРУКЦИЯ КЛАПАННОЙ КРЫШКИ НА ГОЛОВКЕ БЛОКА ЦИЛИНДРОВ ДВИГАТЕЛЯ ВНУТРЕННЕГО СГОРАНИЯ

... 1. Конструкция клапанной крышки на головке блока цилиндров двигателя внутреннего сгорания по меньшей мере с одним цилиндром, при этом головка блока цилиндров имеет приводимые в действие клапанным распределением газораспределительные клапаны, которые соединены по меньшей мере с одним впускным и выпускным каналом, при этом на головке блока цилиндров посредством нескольких резьбовых соединений зафиксирована по меньшей мере одна клапанная крышка, закрывающая головку блока цилиндров сверху и опосредствованно или непосредственно соединенная по меньшей мере через одно поточное соединение с картером двигателя внутреннего сгорания, предпочтительно с использованием окружного уплотнения, отличающаяся тем, что по меньшей мере часть предусмотренных резьбовых соединений (9) на холодной стороне (3) головки (1) блока цилиндров, обращенной от указанного по меньшей мере одного выпускного канала в головке (1) блока цилиндров и тем самым обращенной к холодной стороне двигателя, снабжена и/или связана с упруго ...

НОВЫЙ ДВИГАТЕЛЬ ВНУТРЕННЕГО СГОРАНИЯ С НОВОЙ КАМЕРОЙ СГОРАНИЯ

Двигатель внутреннего сгорания с новой камерой сгорания, имеющий поршни с короткими заслонками и абсолютно плоскими днищами, крышку блока цилиндров, нижняя поверхность которой является абсолютно плоской, и расстояний “X” между днищем поршня и нижней поверхностью крышки блока цилиндров, когда поршень находится в верхней мертвой точке, образующее камеру сгорания, т.е. пространство между верхней поверхностью поршня или днищем поршня, стенками цилиндра и плоской нижней поверхностью крышки блока цилиндров.

ГОЛОВКА ЦИЛИНДРОВ ДВИГАТЕЛЯ ВНУТРЕННЕГО СГОРАНИЯ

... 1. Головка цилиндров двигателя внутреннего сгорания, имеющая для каждого цилиндра впускной и выпускной клапаны, втулки и седла клапанов, камеру сгорания, связанную с выпускным каналом и с выведенным на ту же сторону головки впускным каналом, состоящим из входного участка и выполненного в форме неправильного винта выходного участка поворота канала на 90o в вертикальной плоскости и 180o в горизонтальной плоскости вокруг оси впускного клапана, отличающаяся тем, что выпускной канал состоит из выходного участка и выполненного в форме неправильного винта входного участка поворота канала на 90o в вертикальной плоскости и 180o в горизонтальной плоскости вокруг оси выпускного клапана, выходной участок впускного канала и входной участок выпускного канала плавно вписаны в надкамерные полости, каждая из которых выполнена в виде цилиндра, соосного седлу соответствующего клапана, диаметром, равным внутреннему диаметру соответствующего седла, и ограниченного сверху полусферой того же диаметра, каналы ...

СЕМЕЙСТВО УНИФИЦИРОВАННЫХ ДВИГАТЕЛЕЙ ВНУТРЕННЕГО СГОРАНИЯ

Изобретение относится к двигателестроению, а именно - к конструкции семейств унифицированных двигателей внутреннего сгорания, и позволяет максимально унифицировать двигатели, входящие в семейство, и снизить затраты на производство различных моделей двигателей этого семейства. Семейство унифицированных ДВС содержит двигатели с различными рабочими объемами, образованными разными комбинациями рядов унифицированных диаметров и ходов поршней. Двигатели имеют одинаковые по высоте блоки цилиндров и унифицированные впускные и выпускные трубопроводы. Новым является то, что головки цилиндров двигателей семейства унифицированы, а поршни имеют выемки в днищах, причем объем выемки в поршне равен разности между отношением рабочего объема цилиндра к степени сжатия, уменьшенной на единицу, и объема части камеры сгорания этого цилиндра, расположенной в головке цилиндров.

ГОЛОВКА ЦИЛИНДРОВ ДВС

Головка цилиндров ДВС, содержащая корпус с огневым днищем, в котором выполнены отверстия под клапаны и форсунку, перемычки с отверстиями для их охлаждения между отверстиями под клапаны, полость охлаждения, отверстия для подвода охлаждающей жидкости, отличающаяся тем, что в отверстиях для подвода охлаждающей жидкости вставки из материала с низким коэффициентом теплопроводности запрессованы по всей длине, а в отверстиях перемычек - на длине периферийной части огневого днища.

УСТРОЙСТВО ДЛЯ ПОДАЧИ ВОЗДУХА, В ЧАСТНОСТИ ВПУСКНОЙ ВОЗДУХОРАСПРЕДЕЛИТЕЛЬНЫЙ ТРУБОПРОВОД, ДЛЯ ДВИГАТЕЛЯ ВНУТРЕННЕГО СГОРАНИЯ

НОВЫЙ ЧУГУННЫЙ СПЛАВ И ИЗДЕЛИЕ ИЗ НЕГО

... 1. Чугунный сплав, содержащий 3,0-3,8% углерода, 1,6-2,5% кремния, 0,20-0,65% марганца, 0,01-0,1% олова, <0,025% серы, 0,001-0,020% магния, 0,1-1,2% меди, 0,04-0,2% хрома, остальное до 100% - железо и случайные примеси, в котором структура матрицы является непрерывно меняющейся смесью феррита/перлита и в котором содержание карбидов составляет менее 1%, отличающийся тем, что 1-10% графита в сплаве находится в форме чешуйчатого графита, 90-99% - в форме компактного графита и, самое большее, 5% - в форме шаровидного графита. 2. Сплав согласно п.1, отличающийся тем, что содержание углерода составляет 3,5-3,7%. 3. Сплав согласно п.1, отличающийся тем, что содержание кремния составляет 2,1-2,4%. 4. Сплав согласно п.1, отличающийся тем, что содержание марганца составляет 0,3-0,5%. 5. Сплав согласно п.1, отличающийся тем, что 1-10% графита в сплаве находится в форме чешуйчатого графита, 90-99% - в форме компактного графита и, самое большее, 1% - в форме шаровидного графита. 6. Изделие из чугуна ...

Головка цилиндров двигателя внутреннего сгорания

Изобретение относится к энергетическому машиностроению. Целью изобретения является увеличение термического сопротивления огневого днища головки цилиндров в осевом и радиальном направлениях Днище головки цилиндров выполняется с термоизоляционной вставкой имеющей форму диска с отогнутыми вниз стойками На вставку наносится керамический или металлокерэмический термоизоляционный экран Новым в головке цилиндров является расположение вставки в теле днища посередине его высоты и дискообразная форма вставки с опорными стойками Вставка закрепляется в теле днища путем защемления ее материалом головки 3 з п ф-лы, 2 ил.

Головка цилиндра двигателя внутреннего сгорания

Изобретение относится к машиностроению, в частности к двигателям внутреннего сгорания (две) с впрыском топлива в цилиндры, а именно к головкам двигателя, и позволяет повысить надежность головки путем уменьшения перепада температурv^впускной и выпускной зон. Головка цилиндра две содержит корпус 1, в днище которого размещены отверстия под впускные 2 и 3 и выпускные 4 и 5 клапаны, центры этих отверстий размещены в вершинах равнобо- кой трапеции, причем отверстия под выпускные клапаны размещены в основании трапеции . Каналы 9-11 для охлаждения • головки размещены в перемыч1^е между парами отверстий под впускные 2 и 3 и выпускные 4 и 5 Клапаны и между отверстиями под'' выпускные 4 и 5 клапаны и сообщены между собой. Колодец для установки топливной форсунки выполнен в перемычке между отверстиями для выпускных клапанов и наклонен в сторону выпускного канала. 1 з. п. ф-лы, 2 ил..слсS4••»^VI Ю ...

Головка цилиндров многотопливного дизеля

Изобретение позволяет повысить надежность работы и ресурса двигателя за счет снижения т-ры распылителя форсунки до зфовня, обеспечивающего стабильную работу без коксования и лакообразования, и устранения повышенных монтажных напряжений в днище головки цилиндра. Для этого уплот- нительное кольцо вьшолнено в виде разрезной тонкостенной втулки 12с цилиндрической наружной и конической внутренней поверхностями. Кольцо раз- мещено между соответствующей цилиндрической стенкой 17 форсуночного колодца, омываемой с внешней стороны охлаждающей жидкостью и выполненной на гайке 2 распьшителя соответствующей конической поверхностью. В рабочем положении коническая поверхность гайки 2 плотно прилегает к соответствующей поверхности втулки 12, а цилиндрическая поверхность втулки - к расточке форсуночного колодца. Мягкое покрытие втулки 12 заполняет микронеровности сопрягаемых поверхностей, компенсирует неточность обработки и обеспечивает герметичность соединения . Давление газов также увеличивает плотность ...

Головка цилиндра

ДBИГATEЛЬ BHУTPEHHEГO CГOPAHИЯ

Впускной канал головки цилиндра двигателя внутреннего сгорания

Изобретение может быть использовано в двигateляx с избыточным давлением воздуха на впуске. Цель изобретения - повьшение экономичности путем уменьшения сопротивления канала при сохранении достаточного вихреобразования в камере сгорания Для этого входной участок А канала 1 имеет сечение постоянной площади, большей или равной площади в его начальной плоскости. При переходе входного участка в вихревой участок В на длине 0,3-0,4 диаметра горловины канала 1 площадь нормальных сечений канала плавно уменьшается на 20-30%, причем ггменьшение площади начинается с сечения, касательного -к окружности горловины канала и расположенного нормально к потоку воздуха. Наличие плавного уменьшения площади переходного участка Б позволяет использовать для прохода воздуха часть клапанной щели, непосредственно примыкающей к входному участку. 1 ил. сл jff ...

Головка цилиндра двигателя внутреннего сгорания

Изобретение относится к двигателе- строению. Цель изобретения - повышение турбулизации заряда в цилиндре двигателя . Для этого на стенках канала со стороны огневого днища головки выполнен прилив 5, вытянутый до стержня клапана и имеющий со стороны огневого днища кольцевую проточку под щирму клапана. На частичных режимах загрузки двигателя клапан 3 разворачивается вокруг собственной оси таким образом, что его щирма 4 частично перехватывает проходное сечение клапана, сохраняя высокую степень турбулентности поступающего в цилиндр заряда. 1 ил. Ч СЛ СлЭ СЛ ...

Головка цилиндров для двигателя внутреннего сгорания

Изобретение относится к двига- телестроению и позволяет повысить надежность и долговечность головки цилиндров путем устранения накопления остаточных напряжений в перемыч-ках между клапанными седлами. Головка содержит корпус 1 с огневой поверхностью 2 на нижней плите. В последней выполнены клапанные седла 4 и перемычки 5 между ними. В корпусе имеется кольцевая выточка, в которой установлена вставка 7 из материала, обладакнцего эффектом памяти формы. Вставка 7 в форме трапеции имеет чередующиеся проточки 8 и 9 на внешней и внутренней поверхностях в зоне перемычек 5. Проточки на внешней поверхности выполнены на дуге 24-87. При запуске двигателя головка цилиндров нагревается. С ростом т-ры во вставке 7 происходит мартенситное превращение и она изменяет свою форму. Внешняя поверхность вставки оказывает давление на боковую поверхность выточки , что препятствует выпадению вставки, а внутреняя перестает взаимодействовать с головкой цилиндров. При остановке двигателя и охлаждении во вставке происходит ...

Головка цилиндра двигателя внутреннего сгорания

Изобретение относится к двигателестроению и позволяет уменьшить массу и повысить надежность головки цилиндра. Устр-во для заливки пускового топлива имеет корпус, выполненный с резьбовой головкой 5, расположенной в резьбовом гнезде, центральный канал с седловой поверхностью 7 и полостью 8 для топлива. Подпружиненный запорный орган выполнен с перекрывной головкой 9, имеющей штифт, и приводным штоком 10, размещенным в канале и полости 8. Втулка 11 закреплена одним концом в ступенчатом отверстии, стенка малого диаметра которого выполнена с резьбовым гнездом, а другой ее конец выступает над головкой. Крышка 12 с крепежной осью 13 вращения расположена на выступающем конце втулки, внутренняя полость которой сообщена с полостью 8 с возможностью образования общей емкости для топлива. В головке выполнен паз для размещения штифта при закрытом положении запорного органа. Корпус со стороны полости 8 выполнен с поверхностями 17 для монтажного инструмента.Такое выполнение обеспечивает подачу заданного ...

Система впуска для двигателя внутреннего сгорания

Изобретение относится к машиностроению и позволяет повысить вихре- образование путем уменьшения аэродинамического сопротивления системы, а также снизить стоимость изготовления впускных систем. Система впуска содержит по меньшей мере два впускных канала 1 и 2, расположенных на разной высоте под углом к надклапан- ной камере 3, и дроссельную заслонку 4, размещенную в верхнем впускном канале 1, тангенциально сопряженном с надклапанной камерой 3. Последняя выполнена в виде тела вращения, впускные каналы в местах сопряжения с надклапанной камерой вьшолнены цилиндрическими , а нижний канал сопряжен с надклапанной камерой тангенциально , причем сопряжения впускных каналов с надклапанной камерой расположены с разных сторон относительно ее оси. На режимах частичных нагрузок заслонка 4 впускного канала 1 закрыта, и рабочий заряд поступает в цилиндр двигателя по впускному каналу 2, тангенциальное расположение которого относительно камеры 3 обеспечивает интенсивное завихривание заряда. При работе двигателя ...

Головка цилиндра двигателя внутреннего сгорания

Способ сборки головки цилиндров двигателя внутреннего сгорания

Изобретение относится к двигателест- роению, и может быть использовано в дизелях и позволяет снизить трудоемкость и/ упростить сборку. Величина кольцевого за- . зора выбирается минимально гарантиро- данной для класса посадок И с зазором. Неподвижная фиксация стакана производится путем его раздачи дорном 6, имеющим угол заборного конуса - 14°. При этом получают прессовое соединение стакана с верхним 2 и нижним 3 гнездами, образуют на наружной поверхности стакана микробурт 7, расположенный между верхним 2 и нижним 3 гнездами, и обеспечивают гарантированный натяг по нижнему торцу стакана за счет преимущественного течения металла в зоне нижнего гнезда 3 в направлении дорнования. Причем диаметральную высоту h микробурта 7 по отношению к диаметру гнезд 2 и 3 выбирают из соотношед2 ния ,0032 , где h - высота мйкробурта ло 7;.d о- внутренний диаметр стакана форсунки перед дорнованием: D0 - наружный диаметр стакана форсунки перед дорнованием. а натяг дорнования, обеспечивающий высоту микробуртз ...

Головка цилиндра теплоизолированного двигателя внутреннего сгорания

Изобретение позволяет повысить надежность головки цилиндра теплоизолированного двигателя путем увеличения интенсивности локального регулируемого охлаждения выпускного клапана. Головка цилиндра содержит корпус 1, запрессованную в нем направляющую втулку 2 с винтовым каналом охлаждения, выпуклой клапан со стержнем 3, размещенным во втулке 2, и систему охлаждения. Канал охлаждения выполнен в виде канавки 4 на поверхности втулки 2 и снабжен входным участком 5, расположенным в нижней части втулки. Втулка выполнена из высокотеплопроводного материала и снабжена дополнительной винтовой канавкой 6 с входным участком 7, расположенной эквидистантно первой. Канавки 4 и 6 размещены на наружной поверхности втулки 2 и выполнены с переменным поперечным сечением, увеличивающимся по длине каждой канавки по мере удаления от ее входного участка 5 или 7. Головка снабжена регулятором 8, соединенным с входными участками 5 и 7 винтовых канавок 4 и 6 с возможностью последовательного их подключения к системе охлаждения ...

Головка цилиндров двигателя внутреннего сгорания

Изобретение относится к двигателестроению и позволяет уменьшить расход масла на угар в двигателе внутреннего сгорания. Головка цилиндров содержит впускной 3 и выпускной 4 клапаны. Направляющая втулка 5 впускного клапана имеет кольцевые проточки 7, 8 с радиальными сверлениями, которые через канал 10 сообщены с каналом 2 выпускного клапана. В последнем поддерживается избыточное давление отработавших газов, благодаря чему проникновение масла через зазор между втулкой 5 и штоком клапана 3 уменьшается. 1 ил.

Способ сборки поршневого двигателя

Изобретение позволяет повысить технологичность сборки и надежность путем исключения разрушения теплоизолирующей плиты. Способ сборки поршневого двигателя с теплоизолирующей плитой, размещенной на днище головки цилиндра, заключается в том, что теплоизолирующую плиту с седлами клапанов накладывают на днище головки без фиксации, устанавливают клапаны, пружины и сухари. Причем ориентация плиты относительно днища головки осуществляется при установке клапанов через сопряженные между собой конические поверхности клапанов и их седел. Затем головку с теплоизолирующей плитой устанавливают на опорную поверхность цилиндра и стягивают головку с цилиндром элементами крепления. 1 ил.

Крышка цилиндра двигателя внутреннего сгорания

Головка цилиндра двигателя внутреннего сгорания

Головка цилиндра

Головка цилиндра для двигателя внутреннего сгорания

Zylinderkopf für eine Brennkraftmaschine

Verfahren zum Einstellen der Kapazität von Verbrennungskammern einesMehrzylindermotors und Gießverfahren dafür

Diese Offenbarung stellt ein Verfahren zum Einstellen von Kapazitäten von Verbrennungskammern eines Mehrzylindermotors bereit, der einen Zylinderkopf mit ausgesparten Teilen, die teilweise die Verbrennungskammern bilden, und eine zusammenpassende Fläche zum Zusammenpassen mit einem Zylinderblock aufweist, welches das Gießen eines Zylinderkopfmaterials, das flache Referenzflächen oben an den ausgesparten Teilen des Zylinderkopfs aufweist, das Bearbeiten des Zylinderkopfmaterials, um die zusammenpassende Fläche zu bilden, das jeweilige Messen von Abständen in einer Höhenrichtung von der zusammenpassenden Fläche zu den Referenzflächen und das Einstellen von Bearbeitungsspannen von Bearbeitungsabschnitten der Flächen der ausgesparten Teile basierend auf den gemessenen Höhenrichtungsabständen umfasst.

Multipart core for producing cylinder blocks etc. - with central core part made of two conical-shaped sections butting together at their central radial plane

Multi-part casting core for producing a tubular casting has a central two part core (6,7) which butts together at the central part of the whole core. USE/ADVANTAGE - Esp. for producing cylinders or cylinder bushes for combustion engines. The amount of additional machining work required after removing the core is halved by having the two part central core.

EINRICHTUNG ZUR GLEICHZEITIGEN BETAETIGUNG ZWEIER GASWECHSELVENTILE EINER BRENNKRAFTMASCHINE

Verfahren zur Steuerung der Ventilbetriebscharakteristik und des Luft-Kraftstoffverhältnisses einer Brennkraftmaschine

Abnehmbarer Zylinderkopf fuer Brennkraftmaschinen

Schraubverbindung für einen Abgaskrümmer

Schraubverbindung zur Befestigung eines Abgaskrümmers 40 mit einem Zylinderkopf 10 mithilfe einer ersten Verschraubung 20, die an einer ersten Seite eines Abgaskanals 15 vorgesehen ist. Dabei ist eine Klemmleiste 60 an einer zweiten Seite des Abgaskanals 15 angeordnet und eine Verschraubung 30 der Klemmleiste 60 ist von der ersten Seite zugänglich.

Otto engine with direct fuel injection has fuel injection valve with seal, cooled by coolant water coming from outlet in cylinder seal

The engine has a fuel injection valve (4) with valve seal (5) near the base of a cylinder head (2), which has a flat section near the seal. A water outlet is formed in the cylinder seal (3) near the injection valve seal. The injection valve is cooled by coolant water via a section of the valve seal, and the water comes from the outlet along the cylinder head base. The length of the water outlet in a direction at right angles to the crankshaft direction corresponds mainly to a gap between an inner wall (11) of an upper cylinder block (1) section and an outer wall (12).

Drehventilanordnung

Drehventilanordnung in einem Zylinderkopf (1), der über mindestens einen Ein- und Auslasskanal (2, 3) aus einem Arbeitsraum mit Zylinderachse (7) verfügt, wobei der Ein- und Auslasskanal (2, 3) durch mindestens eine Durchtrittsöffnung in einem Drehventilkopf (5) eines Drehventils (4) geöffnet ansonsten durch den Drehventilkopf (5) verschlossen werden, das Drehventil (4) mit seinem Drehventilschaft (6) fluchtend oder geneigt zur Zylinderachse (7) des Arbeitsraumes in einer gegenüber dem Arbeitsraum abgedichteten Ausnehmung (8) des Zylinderkopfes (1) angeordnet ist, der Drehventilschaft (6) mit einem Antrieb (9) für das Drehventil (4) verbunden ist, der Drehventilschaft (6) im Zylinderkopf (1) durch Lager (11, 12) abgestützt ist, der Drehventilschaft (6) im Zylinderkopf (1) verschiebbar angeordnet ist und der Drehventilschaft (6) im Schaftendbereich mit einer Feder (13) gekoppelt ist, die den Drehventilkopf (5) gegen eine Auflagefläche (19) des Zylinderkopfes (1) presst, dadurch gekennzeichnet ...

Verfahren zur Gemischbildung bei einer direkteinspritzenden Brennkraftmaschine

Verfahren zur Gemischbildung bei einer direkteinspritzenden Brennkraftmaschine (1), wobei durch jeweils mindestens einen Einlaßkanal (21a, 21b) pro Zylinder (2), dessen Zugang zu einem im Zylinder (2) von einem Kolben (3) begrenzten Brennraum (4) ein Einlaßventil (5a, 5b) freigibt, ein Verbrennungsluftstrom (8a, 8b) etwa tangential zu einer Zylinderwand (10) unter Ausbildung einer Drallströmung (9) um eine Zylinderachse (11) in den Brennraum (4) strömt und wobei ein Injektor (6) Kraftstoff in den Brennraum (4) einspritzt, dadurch gekennzeichnet, daß mindestens ein Zusatzfluidstrom (12, 12', 12a, 12b) im Eintrittsbereich des Einlaßkanals (21a, 21b) zum Brennraum (4) dem Verbrennungsluftstrom (8a, 8b) auf seiner in Richtung der Drallströmung (9) abgewandten Seite zugeführt wird und dem Verbrennungsluftstrom (8a, 8b) einen Drehimpuls erteilt und daß eine Reglereinheit (20) den jeweiligen Massendurchsatz der Zusatzfluidströme (12, 12', 12a, 12b) und des Abfuhrstroms in Abhängigkeit vom Betriebspunkt ...

Sheet metal lining for engine inlet and exhaust ducts - is preformed as two half shells and inserted in mould when casting cylinder head

The inlet and exhaust ducts (4) in the cylinder head (8) of a combustion engine have a thin-walled sheet metal lining (5) inside the duct. The lining consists of two half-shells, which are first pressed into the correct shape of the duct and then inserted in the foundry mould. Then the cylinder head is cast in the normal way. The pressed shells may be provided with an insulating layer (7) on the outside, which may consist of ceramic material. The lining preferably extends from the valve seat ring (6) to the end of the exhaust duct or the start of the inlet duct. The lining may be double-walled, with an insulating layer, preferably air, between them.

Brennraum eines Kraftstoff direkt in einen Zylinder einspritzenden Motors

The combustion chamber has a pentroof composed of an intake side roof 12c and an exhaust side roof 12d, a piston 13 and a cylinder 11. A fuel injector 15 provided between the intake side roof 12c and the exhaust side roof 12d and is inclined toward the exhaust side in fig.1 or towards the intake side in fig.12. In fig. 1 the intake port 16 is at an acute angle z to an extended line LEX from the exhaust side roof so as to form a tumble flow of intake air along the exhaust side roof. In fig.12, the intake port 16 is angled to direct air at the piston to cause a tumble flow. The top surface 13a of the piston 13 has a cavity 13b with a curved surface so as to reflect a fuel spray injected from the fuel injector 15. An electrode 23a of a spark plug projects from the intake side roof 12c, fig.1, or the exhaust side roof 12d, fig.12, so as just to collide with the tumble flow. Such a combustion chamber permits the establishment of the fuel injection finishing timing in a wide range according to ...

Mehrzylinder-Ottomotor mit Kraftstoffdirekteinspritzung

Hubkolbenbrennkraftmaschine

The invention relates to a reciprocating internal combustion engine with at least one cylinder (2), in the head (8) of which cylinder end two inlet channels (6) which can be controlled by one inlet valve (10) each. Two outlet channels (12) which can be controlled by one outlet valve (14) each start in the cylinder head (8). The mouths of the inlet channels and outlet channels are positioned diametrically opposite each other. The engine further comprises a piston (4) moving in the cylinder (2) and is characterized in that it has two crankshafts (30, 32) which rotate in opposite directions, mutually engage each other via teeth (34) and are each connected to the piston (4) by means of one connecting rod (36, 38) each.

Vierventil-Zylinderkopf einer Brennkraftmaschine

VERBESSERTER ZYLINDERKOPF EINES VERBRENNUNGSMOTORS ODER DERGLEICHEN UND HERSTELLUNGSVERFAHREN

Ventilsitz

A joined type valve seat has a coating layer of thickness of 10~m or less. The layer has a coefficient of thermal expansion of an intermediate value between the valve seat material and the cylinder head material. The surfaces of the valve seat contacting with the cylinder head are coated. Where the valve seat is made of Fe-base sintered alloy, the layer will have a coefficient of thermal expansion of 15 x 10 -6 - 25 x 10 -6 (1/K). Where the valve seat is made of Cu-base alloy, the layer will have a coefficient of thermal expansion of 18 x 10 -6 - 27 x 10 -6 (1/K). Where the seat is made of ceramics the layer will have a coefficient of thermal expansion of 10 x 10 -6 - 20 x 10 -6 (1/K). The coating will be a pure metal or alloy layer (e.g. Cu, Ag, Ni). The seat is joined to the cylinder head by welding. The cylinder head is preferably aluminium alloy.

GEGOSSENER ZYLINDERKOPF FUER BRENNKRAFTMASCHINEN.

Zylinderkopfhaubenaufbau

Ein Zylinderkopfhaubenaufbau für mindestens eine Nockenwelle weist mindestens einen Schiebenocken auf. An dem Schiebenocken ist mindestens eine nutenförmige Kontur ausgebildet, und der Schiebenocken ist entlang der Längsachse der Nockenwelle mittels eines senkrecht zur Längsachse der Nockenwelle bewegbaren Stößels bewegbar. Der mindestens einen Stößel ist in einem Gehäuse mit einem Manipulator für die Bewegung des mindestens einen Stößels angeordnet und der Manipulator mit Zuleitungen, die mit der Steuerung verbunden sind, über einen Anschluss verbunden. Eine Zylinderkopfhaube ist aus oder mit einem Polymer gebildet. Ein parallel zur Längsachse der Nockenwelle ausgerichtetes und zwischen Schiebenocken und Zylinderkopfhaube angeordnetes Führungselement für den/die Stößel ist an Lagerböcken befestigt, wobei in dem Führungselement für jeden Stößel mindestens eine Führungsdurchbrechung ausgebildet ist und das Führungselement und das Gehäuse, im mit der Zylinderkopfhaube verbundenem Zustand, ...

Zylinderkopf für eine Hubkolbenmaschine, insbesondere eines Kraftfahrzeugs

Die Erfindung betrifft einen Zylinderkopf (10) für eine Hubkolbenmaschine, insbesondere eines Kraftfahrzeugs, mit einem Grundkörper (16), welcher zumindest in einem Teilbereich (30) mit einer Beschichtung (28) versehen ist, durch welche zumindest eine Ventilführung (26) zum Führen eines Gaswechselventils (12) gebildet ist, wobei die Beschichtung (28) wenigstens einen Festschmierstoff aufweist.

Zweitakt-Brennkraftmaschine

WAERMEDAEMMENDE BRENNKAMMER UND VERFAHREN ZU DEREN HERSTELLUNG.

Flüssigkeitsgekühlte Brennkraftmaschine mit zueinander geneigt angeordneten Zylinderbänken, insbesondere V-Motor

Verfahren zur Herstellung eines Aluminium-Gussbauteils sowie Zylinderkopf für ein Kraftfahrzeug und Fertigungsstrecke zur Durchführung eines Verfahrens

Die Erfindung betrifft ein Verfahren zur Herstellung eines Aluminium-Gussbauteils (22) mit mindestens einem darin angeordneten Verstärkungselement (10), umfassend mindestens die folgenden Verfahrensschritte:a) Herstellung eines Kerns (18), wobei mindestens ein Verstärkungselement (10) in eine erste Form (14) eingelegt wird und zumindest teilweise mit einem Schaumwerkstoff umspritzt wird;b) Einlegen des hergestellten Kerns (18) in eine zweite Form (20);c) Eingießen von Aluminium in die zweite Form (20), so dass das eingegossene Aluminium den Kern (18) zumindest teilweise umgibt und der Schaumwerkstoff beim Umgießen zumindest teilweise entfernt wird.Mittels des Verfahrens soll eine besonders einfache Herstellung eines Aluminium-Gussbauteils mit einem Verstärkungselement ermöglicht werden.Die Erfindung betrifft ferner einen Zylinderkopf für ein Kraftfahrzeug und eine Fertigungsstrecke zur Durchführung eines solchen Verfahrens.

Einzylinder-Zweitakt-Umlaufmotor

Motorrad

Zylinderkopf fuer Brennkraftmaschinen

Zylindereinspritzungs-Verbrennungsmotor

Ein Zylinderkopf umfasst: einen Zylinderkopfkörper; mehrere Kraftstoffkanäle, die sich von einer Seitenwandoberfläche des Zylinderkopfkörpers zu Zylindern erstrecken, wobei sich die Seitenwandoberfläche auf einer Seite eines Längsachse befinden, auf der Ansaugkanäle angeordnet sind; mehrere Einspritzventil-Befestigungsbosse, die von der Seitenwandoberfläche vorragen, Öffnungen der Kraftstoffkanäle umgeben und dazu geeignet zu, Zylinderkraftstoffeinspritzventile an den Kraftstoffkanälen zu befestigen; und mehrere Vorsprünge, die von der Seitenwandoberfläche vorragen und benachbart zu der entsprechenden Einspritzventil-Befestigungsbossen angeordnet sind. Ein Motorblock umfasst: einen Motorblockkörper; und eine Sensorbefestigungsbosse, die von einer Seitenwandoberfläche des Motorblockkörpers vorragt, wobei sich die Seitenwandoberfläche auf der einen Seite der Längsachse befindet, auf der sich die Seitenwandoberfläche des Zylinderkopfkörpers befindet. Die Sensorbefestigungsbosse ist dazu geeignet ...

Brennkraftmaschinenbrennstoff-Lufteinspritzung

Core for the casting of grey cast iron cylinder blocks

The invention relates to a core for the casting of grey cast iron cylinder blocks for reciprocating-piston internal combustion engines with a water jacket extending between the cylinders and the longitudinal and transverse walls of the cylinder block which surround the said cylinders, there being a core part for the formation of the water jacket and a core part for the formation of the base of the cylinder block. In this arrangement, the core part for the water jacket and the core part for the base are in the form of a one-piece core.

Brennkraftmaschine

Mehrzylindrige, insbesondere luftverdichtende Einspritzbrennkraftmaschine

Fremdgezündete Brennkraftmsachine mit Direkteinspritzung

Nockenwellenantriebsanordnung für Brennkraftmaschine.

ZYLINDERKOPF MIT KUEHLKANAL, DER DER QUETSCH-ZONE FOLGT UND EINEN GLEICHMAESSIGEN QUERSCHNITT HAT.

Brennkraftmaschine mit abnehmbarem Zylinderkopf

Ventilbetätigungseinrichtung für eine Brennkraftmaschine

Verfahren zur Gestaltung eines Gusstückes aus Aluminium oder seinen Legierungen mit eingegliederten Giessläufen.

Cylinder head for internal combustion engine has central axis of fuel injection device between induction valves on perpendicular to central axis of cylinder

The cylinder head is for an engine with two induction valves (2, 2') and two exhaust valves (3, 3') and a combustion chamber head (5) co-axial with the central axis (4) of the cylinder. The central axis (8) of the fuel injection device (6) is between the induction valves on a perpendicular (14) to the central axis (4) of the cylinder, with a spacing (d) from this axis.

Motorzylinderkopfstruktur

Struktur eines Zylinderkopfes (3) eines Motors (1), die Folgendes umfasst: mehrere Nockenwellenlagerabschnitte (40), die auf dem Zylinderkopf (3) ausgebildet sind und in einer axialen Richtung einer Nockenwelle angeordnet sind, wobei der Nockenwellenlagerabschnitt (40) die Nockenwelle drehbar lagert; ein Betätigungselement (48) eines variablen Ventilsteuermechanismus' (47), der an einem von einer Randwand des Zylinderkopfes (3) vorstehenden Abschnitt an der Nockenwelle angebracht ist; ein Ölsteuerventil (49), das in einem Kettenkasten (7) angeordnet ist, der die Randwand des Zylinderkopfes (3) abdeckt; einen zylinderkopfseitigen Öldurchgang (52), der in der Randwand des Zylinderkopfes (3) ausgebildet ist und durch den Öl von einer Zylinderblockseite zugeführt wird, wobei der zylinderkopfseitige Öldurchgang (52) ein stromabwärtiges Ende aufweist, das sich in einen Betätigungselement-Öldurchgang (53), der über das Ölsteuerventil (49) mit dem Betätigungselement (48) in Strömungsverbindung ...

Zylinderkopfanordnung für einen Viertakt-Motorradmotor

Zylinderkopfanordnung für einen Viertakt-Motorradmotor, der ein an einem Seitenteil des Zylinderkopfes angeordnetes Nockenzahnrad (46) zur Kraftübertragung auf ein Ventilgetriebe in dem Zylinderkopf (44), eine auf demselben Seitenteil angeordnete Nockenkette (47) zur Übertragung der Kraft von einer Kurbelwelle (40) auf das Nockenzahnrad, eine Nockenkettenkammer (48) zur Aufnahme der Nockenkette und des Nockenzahnrades und eine gegenüber dem Nockenzahnrad angeordnete Kopfabdeckung (49) aufweist, dadurch gekennzeichnet ist, daß eine Anlagefläche (44b) zwischen dem Zylinderkopf und der Kopfabdeckung derart relativ zu der Bewegungslinie der Nockenkette (47) geneigt ist, daß mindestens der obere Teil des Nockenzahnrades (46) bei abgenommener Kopfabdeckung frei liegt, wenn das Nockenzahnrad von der Seite des Zylinders betrachtet wird.

Gasaustauschkanal zwischen zwei Einlassöffnungen

System zur Verstärkung der Gemischbildung und Bewegung der Füllung in einem Brennraum (60) eines mehrventiligen Motors, wobei der Motor einen Einlasskanal (110) und in dem Einlasskanal erste und zweite Einlassventilelemente (50, 50') aufweist, wobei jedes Ventilelement unabhängig voneinander durch ein Betätigungselement (40) aktiviert wird, und das System ein Teilerelement (100) aufweist, das in dem Einlasskanal (110) zwischen dem ersten und dem zweiten Einlassventilelement (50, 50') angeordnet ist, und das Teilerelement (100) einen darin befindlichen Kanal (120) zum Übergang von Luft oder Luft und Kraftstoff von einer Seite (A, B) des Teilerelements zu der anderen (B, A) aufweist, wobei der Kanal (120) so gestaltet ist, dass der Mengenfluss von Luft oder Luft und Kraftstoff, um die Verbrennung in dem Brennraum (60) zu verstärken, direkt zu einem der beiden Einlassventilelemente (50, 50') lenkbar ist.

Cylinder head for internal-combustion engine, has gas channel, bearing sleeve for gas exchange valve, and case for fixing bolt, where cam shaft storage, base plate, and multiple side panels are provided

The cylinder head (1) has a gas channel (2) and a bearing sleeve (7) for a gas exchange valve. A case (9) is provided for a fixing bolt, where a cam shaft storage (5), a base plate (12) and multiple side panels (10,11) are provided. A sheet metal part (8) is provided for penetrating the bearing sleeve and the case, where a transverse stiffener (6) is provided. An independent claim is included for a method for manufacturing a cylinder head.

Zylinderkopf einer Hubkolbenbrennkraftmaschine

Die Erfindung betrifft einen Kipphebelrahmen für eine Zylinderkopf einer Brennkraftmaschine, der auf einem Zylinderkopfunterteil gelagert ist und auf eine Zylinderkopfhaube aufgesetzt ist. Der Kipphebelrahmen trägt Kipphebelachsen mit Kipphebeln und erstreckt sich einstückig über den ganzen Zylinderkopf.

Verfahren und System zum Betrieb eines Innenbrennkraftmotors mit Funkenzündung und Direkteinspritzung, der Betriebsarten mit variablem Kompressionsverhältnis hat

Verfahren zum Betrieb eines Innenbrennkraftmotors mit Funkenzündung und Direkteinspritzung und variablem Kompressionsverhältnis, gekennzeichnet durch: Feststellen eines geforderten Ausgangsdrehmoments des Motors; Ermitteln eines laufenden Verbrennungsmodus und einer laufenden Kompressionsverhältnisbetriebsart des Motors; Überführen des Motorbetriebs vom laufenden Verbrennungsmodus in einen neuen Verbrennungsmodus zur Erzeugung des geforderten Ausgangsdrehmoments; und Überführen des Motorbetriebs von der laufenden Kompressionsverhältnisbetriebsart in eine neue Kompressionsverhältnisbetriebsart, um Drehmomentfluktuationen während des Übergangs vom laufenden Verbrennungsmodus in den neuen Verbrennungsmodus zu verringern.

Mehrzylinder-Hubkolben-Verbrennungsmotor

Kipphebelanordnung

Anordnung eines rotationssymmetrischen Brennraums im Kolben eines 4-Takt Verbrennungsmotors

Fremdgezündete und direkteingespritzte Brennkraftmaschine

BEHANDLUNG VON DURCHBLASGASEN

Verfahren und Vorrichtung zur Herstellung eines zweiteiligen Kolbens

Flüssigkeitsgekühlter Zylinderkopf einer mehrzylindrigen, je Zylinder mehrventiligen Brennkraftmaschine

Zylinderkopf und Verfahren zur Herstellung eines Zylinderkopfes

Die Erfindung betrifft ein Zylinderkopf für eine mehrere Zylinder aufweisende Brennkraftmaschine, mit einem integrierten Abgaskrümmer (3) und Auslasskanälen (5), wobei der Zylinderkopf aus einem ersten Werkstoff besteht und die Auslasskanäle (5) und/oder der Abgaskrümmer (3) zumindest abschnittsweise von einem in dem Zylinderkopf eingegossenen Mantel (6) aus einem zweiten Werkstoff ausgekleidet sind. Erfindungsgemäß ist vorgesehen, dass der Mantel (6) aus mehreren Abschnitten (9) und/oder Segmenten (11) besteht. Weiterhin betrifft die Erfindung ein Verfahren zur Herstellung eines Zylinderkopfes für eine mehrere Zylinder aufweisende Brennkraftmaschine, bei dem der Zylinderkopf in einer Kavität aus einem ersten Werkstoff gegossen wird, wobei vor dem Gießen ein einen Abgaskrümmer (3) und/oder Auslasskanäle (5) der Brennkraftmaschine zumindest abschnittsweise auskleidender Mantel (6) aus einem zweiten Werkstoff in der Kavität positioniert wird. Erfindungsgemäß ist vorgesehen, dass vor dem Positionieren ...

IC engine with injector per cylinder for direct fuel injection into combustion chamber

An area around the mouth (8) of the injector (7) is constructed as the flow guiding face (11) for a twisting or tumbling flow. The flow guiding face is formed by the combustion chamber cover surface (5) and/or the crown (3) of the piston (2), or may be formed in part by a recess or a guide rib. The maximum extent of the flow guiding face, in a sectional view normal to the cylinder axis is approximately a third of the cylinder diameter.

Zylinderkopf einer Brennkraftmaschine mit wenigstens einer Nockenwelle

Die Erfindung betrifft einen Zylinderkopf einer Brennkraftmaschine mit wenigstens einer Nockenwelle (11) zum Betätigen von Gaswechselventilen der Brennkraftmaschine. Die Nockenwelle (11) besteht aus wenigstens zwei drehfest miteinander verbundenen, jedoch axial zueinander verschiebbaren Nockensegmenten (1, 2), welche an ihren Stirnseiten jeweils eine auf deren äußeren Mantelfläche radial umlaufende Verzahnung (7) tragen, die in eine zu dieser Verzahnung (7) komplementäre Verzahnung (8) eingreift, die auf der Innenfläche eines inneren Lagerrings (9) einer im Zylinderkopf ausgebildeten Nockenwellenlagerung (10) ausgebildet ist. Die Verzahnung (8) auf der Innenfläche des inneren Lagerrings (9) durchdringt diesen in seinem axialen Verlauf vollständig. Beidseitig des inneren Lagerrings (9) greifen in dessen Verzahnung (8) die stirnseitigen Verzahnungen (7) der jeweils angrenzenden Nockensegmente (1, 2) ein, wobei der innere Lagerring (9) eine drehfeste Verbindung zwischen den Nockenwellensegmenten ...

Головка блока цилиндров и головка блока цилиндров в сборе (варианты)

1. Головка блока цилиндров, содержащая:часть камеры сгорания и дренажный канал, включающий в себя впуск и выпуск, открывающийся в атмосферу, наружную по отношению к головке блока цилиндров.2. Головка блока цилиндров по п.1, в которой дренажный канал открывается в атмосферу через наружную боковую стенку головки блока цилиндров, при этом дренажный канал продолжается к стороне выпуска головки блока цилиндров в сборе.3. Головка блока цилиндров по п.1, в которой дренажный канал ведет в окно устройства зажигания.4. Головка блока цилиндров по п.1, дополнительно содержащая крышку постели распределительного вала, при этом дренажный канал продолжается через крышку постели распределительного вала и головку блока цилиндров.5. Головка блока цилиндров по п.4, в которой дренажный канал продолжается вертикально вниз.6. Головка блока цилиндров по п.5, в которой дренажный канал продолжается назад к поверхности сочленения колоколообразного картера трансмиссии, включенной в головку блока цилиндров.7. Головка блока цилиндров по п.4, дополнительно содержащая компонент, продолжающийся в окно для компонента крышки постели распределительного вала, и выемку крышки постели распределительного вала.8. Головка блока цилиндров по п.7, в которой компонент является электромагнитным клапаном, который регулирует установку фаз распределения распределительного вала.9. Головка блока цилиндров по п.8, в которой крышка постели распределительного вала включает в себя второе окно для компонента, выполненное с возможностью приема второго электромагнитного клапана.10. Головка блока цилиндров по п.8, в которой крышка постели распределительного вала направ� РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (51) МПК F02F 1/24 (11) (13) 141 530 U1 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ТИТУЛЬНЫЙ (21)(22) Заявка: ЛИСТ ОПИСАНИЯ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ 2013102986/06, 23.01.2013 (24) Дата начала отсчета срока действия патента: 23.01.2013 (72) Автор(ы): ВАЛЕНСИЯ Фрэнк Асьерно (US), ЛОР Джон Карл (US) 24.01. ...

Cylinder head for an internal combustion engine, engine incorporating the cylinder head, and method of making same

A motorcycle includes an engine configured to expel an exhaust from combustion chambers of cylinders in a cylinder head through exhaust ports. Each of the cylinders is provided with a recessed portion provided in an exhaust passage wall surface in a central portion of an exhaust passage of a corresponding exhaust port. This makes it possible to maintain flow rate and flow velocity of the exhaust gas, and to decrease exhaust loss. As a result, it is possible to increase engine torque by use of a simple structure. In addition, no restriction is imposed on the layout of parts around the engine, because the recessed portions are provided in the exhaust ports.

Internal combustion engine

An internal combustion engine can include a first ignition plug disposed on the inner side of a range surrounded by a plurality of intake valves and a plurality of exhaust valves with a cylinder head viewed in parallel to a cylinder axial line and standing uprightly along the cylinder axial line. A second ignition plug is inclined with respect to the cylinder axial line on the outer side of the range. The second ignition plug is disposed on the opposite side to a valve driving mechanism with respect to the cylinder axial line on the outer side of the range.

CYLINDER HEAD FOR VEHICLE

A cylinder head for a vehicle has combustion chambers, each of which includes one exhaust opening and two intake openings, wherein each of the combustion chambers includes an intake port formed with one side thereof branched so as to be connected to the two intake openings, and a spark plug for igniting an air-fuel mixture within a corresponding combustion chamber, wherein an exhaust port may be connected to the exhaust opening of the respective combustion chambers, and wherein the exhaust port has one side thereof branched that may be connected to the exhaust opening of the respective combustion chambers and the other side thereof may be integrally formed in an integrated shape. 1. A cylinder head for a vehicle having combustion chambers , each of which includes one exhaust opening and two intake openings , wherein each of the combustion chambers comprises:an intake port formed with one side thereof branched so as to be connected to the two intake openings; anda spark plug for igniting an air-fuel mixture within a corresponding combustion chamber,wherein an exhaust port is connected to the exhaust opening of the respective combustion chambers, andwherein the exhaust port has one side thereof branched that is connected to the exhaust opening of the respective combustion chambers and the other side thereof is integrally formed in an integrated shape.2. The cylinder head for the vehicle of claim 1 ,wherein the exhaust opening of the respective combustion chambers is formed in a portion at which the respective combustion chambers are adjacent to each other, andwherein the spark plug of the respective combustion chambers is disposed to an outside relative to the exhaust port of the respective combustion chambers.3. The cylinder head for the vehicle of claim 2 , wherein the spark plug of the respective combustion chambers is adapted to slant at a set angle from a base line perpendicular to a center line connecting centers of the combustion chambers claim 2 , to an ...

CYLINDER HEADS FOR AIRCRAFT ENGINES

An aircraft cylinder head with low pressure loss inlet passageways and exhaust passageways. In an embodiment, the combustion air inlet passageway includes a multi-lobed configuration that reduces pressure drop through the inlet passageway. In an embodiment, the hot exhaust gas passageway provides a shaped design that increases flow velocity yet reduces pressure drop. In an embodiment, an improved intake valve is provided, shaped to reduce creation of turbulence as inlet air flows past the inlet valve. In an embodiment, an improved exhaust valve is provided, shaped to reduce pressure losses as exhaust gases exit the cylinder. 1. A cylinder and head assembly for aircraft engines , comprising:a cylinder body, said cylinder body having a cylinder bore of diameter defined by a sidewall, and an outer end, said cylinder bore configured to operably confine a piston of selected stroke distance, and with the piston define a swept displacement volume DV;adjacent said outer end, a head, said head comprising an inlet passageway extending between an upstream inlet and an intake valve seat, and an exhaust passageway extending between an exhaust valve seat and an exhaust outlet;said inlet passageway having inlet passageway sidewalls to define, between said upstream inlet and said intake valve seat, an inlet passageway volume IPV, andwherein said inlet passageway volume IPV is about thirty percent (30%), or less, of said swept displacement volume DV.2. A cylinder head for aircraft engines , said cylinder head configured for attachment to a cylinder body having a cylinder bore of diameter defined by a sidewall , and an outer end , the cylinder bore configured to operably confine a piston of selected stroke distance , and with the piston thereby define a swept displacement volume DV , said cylinder head comprising: an inlet passageway defined by inlet passageway sidewalls, said inlet passageway extending between an upstream inlet and an intake valve seat, and defining an inlet ...

Cylinder head for internal combustion engine

A cylinder head arrangement for an internal combustion engine, having a combustion chamber portion for defining a combustion chamber above a cylinder in which a piston is reciprocable; two inlet valves lying substantially to one side of the combustion chamber portion, and two exhaust valves lying substantially to the other side of the combustion chamber portion; and a fuel injector disposed in an edge region of the combustion chamber portion at the exhaust valve side thereof, and arranged to inject fuel generally across the combustion chamber portion towards the inlet valve side thereof.

BONDING METHOD AND MEMBERS TO BE BONDED

A bonding method includes bonding a pair of members together made of conductive material and having bonding surfaces which are not positioned on the same plane. In the bonding method, the bonding surfaces of the members to be bonded are positioned to face each other, an electric current is supplied from one of the members to be bonded to the other for carrying out resistance heating while the pair of members to be bonded are slid relative to each other. In this way, the bonding surfaces are bonded to each other. Split or partition surfaces that form a hollow passage and extending along the axis of the hollow passage are set as the bonding surfaces which are not on the same plane. 1. A bonding method for bonding together a pair of conductive members each having a non-coplanar bonding surface , the method comprising:bonding the non-coplanar bonding surfaces together by supplying electric current from one of the conductive members to the other of the conductive members for carrying out resistance heating while facing the non-coplanar bonding surfaces each other and sliding the conductive members to be bonded relative to each other; andforming a hollow passage between the conductive members with a split surface being set as the non-coplanar bonding surfaces and extending along a longitudinal axis of the hollow passage.2. The bonding method as claimed in claim 1 , whereinthe split surface is provided at a portion that represents a maximum size along a direction of extension of the split surface as viewed in a cross-section perpendicular to the axis of the hollow passage.3. The bonding method as claimed in either in claim 1 , whereinthe sliding is caused to occur in one direction, andthe non-coplanar bonding surfaces of the conductive members to-be are shaped to allow the sliding along the one direction.4. A workpiece including the conductive members which are bonded using the bonding method described in claim 1 , comprising:the non-coplanar bonding surfaces, with a split ...

CYLINDER HEAD FOR AN INTERNAL COMBUSTION ENGINE

A cylinder head for an internal combustion engine, in particular a gas engine, comprising at least one main combustion chamber which is provided in the cylinder head and which extends to a combustion chamber opening in a cylinder head base of the cylinder head, wherein a pre-chamber is arranged in the cylinder head, wherein the at least one main combustion chamber is connected to the pre-chamber by way of at least one flow transfer passage. 1. A cylinder head for an internal combustion engine , in particular a gas engine , comprising at least one main combustion chamber which is provided in the cylinder head and which extends to a combustion chamber opening in a cylinder head base of the cylinder head , wherein a pre-chamber is arranged in the cylinder head , wherein the at least one main combustion chamber is connected to the pre-chamber by way of at least one flow transfer passage.2. A cylinder head as set forth in claim 1 , wherein the pre-chamber is equipped with an ignition device claim 1 , with an electrode spark plug or a laser spark plug claim 1 , wherein the ignition device is arranged substantially opposite the at least one flow transfer passage in the pre-chamber.3. A cylinder head as set forth in claim 1 , wherein that a fuel-air mixture disposed in the at least one main combustion chamber can be ignited by ignition flares issuing from the at least one flow transfer passage.4. A cylinder head as set forth in claim 3 , wherein the fuel-air mixture disposed in the at least one main combustion chamber has an over-stoichiometric combustion air ratio claim 3 , wherein the combustion air ratio of the fuel-air mixture in the at least one main combustion chamber is greater than 1.8.5. A cylinder head as set forth in claim 3 , wherein the combustion air ratio of a fuel-air mixture in the pre-chamber is lower than the combustion air ratio of the fuel-air mixture in the at least one main combustion chamber claim 3 , wherein the combustion air ratio of the fuel-air ...

Cylinder Head Configuration For Internal Combustion Engine

A cylinder head ( 10 ) for an internal combustion engine, having at least two inlet valves ( 20 ) associated with the or each combustion chamber, the inlet valves ( 20 ) being supported in the cylinder head ( 10 ) with their axes spaced from one another in a first direction, at least two exhaust valves ( 22 ) with their axes of reciprocation also spaced from one another in the first direction and at least two receiving formations for operating elements (such as a spark plug ( 38 ) and fuel injector ( 40 )), the receiving formations opening into the combustion chamber portion in a central region bounded by the heads of the valves, wherein the receiving formations are inclined to one another so as to diverge generally in the first direction as they extend away from the combustion chamber portion.

FULL EXPANSION INTERNAL COMBUSTION ENGINE WITH CO-ANNULAR PISTONS

A cylinder for an internal combustion engine having co-annular dual pistons. The cylinder has a main cylinder having a main cylinder wall and a cylinder head, a first or outer piston having an annular crown, an inner cylinder wall that defines an inner cylinder, and an annular outer sidewall extending from the periphery of the crown, an inner piston having a crown, and an annular inner sidewall extending from the periphery of the crown. A solenoid-actuated pin selectively secures the outer piston with the main cylinder during a portion of each cylinder cycle. The inner piston reciprocates within the inner cylinder during both the air inlet and compression strokes, while the outer piston reciprocates within the main cylinder only during the power stroke and the exhaust stroke, to increase the piston crown surface area exposed to the combustion gases to maximize the power and efficiency. 1. A cylinder for an IC engine having co-annular dual pistons , the cylinder including:i) a main cylinder including a main cylinder wall and a cylinder head, and having at least one exhaust port, an exhaust valve disposed in the exhaust port, and at least one inlet air port, and an inlet air valve disposed in the inlet air port;ii) an outer piston having an annular crown, an inner cylinder wall defining an inner cylinder, and an annular outer sidewall extending from the periphery of the crown, the outer piston configured for reciprocating movement within the main cylinder;iii) an inner piston having a crown, and an annular inner sidewall extending from the periphery of the crown, the inner piston configured for reciprocating movement within the inner cylinder;iv) a securement means for securing selectively the outer piston with the main cylinder; andv) an optional coupling means for engaging selectively the inner piston with the outer piston for cooperative reciprocating movement within the main cylinder.2. A method for operating an internal combustion (IC) engine , the method ...

CYLINDER HEAD OF INTERNAL COMBUSTION ENGINE

A cylinder head () includes a water jacket () formed around an ignition plug mounting hole (). Upper surfaces ( to ) of portions of the water jacket () between intake ports () and the ignition plug mounting hole () and between exhaust ports () and the ignition plug mounting hole () are set to be lower than upper surfaces ( to ) of the remaining portions of the water jacket () around the ignition plug mounting hole () to increase the rigidity. Thereby, deformation of the cylinder head () due to cylinder internal pressure is limited, and the stress concentration around the ignition plug mounting hole () due to such deformation is reduced. 16-. (canceled)7. A cylinder head for an internal combustion engine comprising an intake port , exhaust ports , a mounting hole for mounting a member to be cooled , and a water jacket provided around the mounting hole , wherein the cylinder head is configured such thatthe intake port, the exhaust ports and the mounting hole are provided to correspond to one cylinder, andfor the one cylinder, at least one of an upper surface of a portion of the water jacket between the intake port and the mounting hole and an upper surface of a portion of the water jacket between each exhaust port and the mounting hole is set to be lower than an upper surface of a portion of the water jacket between the exhaust ports.8. A cylinder head for an internal combustion engine comprising an intake port , exhaust ports , a mounting hole for mounting a member to be cooled , and a water jacket provided around the mounting hole , wherein the cylinder head is configured such thatthe intake port, the exhaust ports and the mounting hole are provided to correspond to one cylinder, andfor the one cylinder, at least one of an upper surface of a portion of the water jacket between the intake port and the mounting hole and an upper surface of a portion of the water jacket between each exhaust port and the mounting hole is set to be lower than an upper surface of a ...

CYLINDER HEAD WITH ANNULAR VALVE FOR INTERNAL-COMBUSTION ENGINE

Cylinder head of combustion engine with ring-shaped valve comprising the body () and rigid centre () of cylinder head and ring-shaped valve () with outer seating face () and inner seating face (), which in its closed position sits down into outer valve seat () with outer seating face () and inner valve seat () with inner seating face (). Inner valve seat () and/or outer valve seat () is fitted slidably in axial direction and to inner valve seat () and/or to outer valve seat () is connected at least one pressure member () for causing force against ring-shaped valve (). 1. A cylinder head with ring-shaped valve for internal combustion engine comprising the body and rigid center of the cylinder head and ring-shaped valve with outer seating face and inner seating face , which in closed position sits down into the outer valve seat err with outer seating face and inner valve seat with inner seating face , wherein the inner valve seat or outer valve seat is fitted slidably in axial direction and at least one pressure member is connected to inner valve seat or to outer valve seat for causing force against the ring-shaped valve.2. The cylinder head according to claim 1 , wherein the slidably movable inner valve seat or outer valve seat is provided with at least one sealing member claim 1 , which is situated between inner valve seat and the center of combustion engine cylinder head a or between outer valve seat and the body of combustion engine cylinder head.3. The cylinder head according to claim 2 , wherein the sealing member is placed in a groove in the center of combustion engine cylinder head or in the body of combustion engine cylinder head.4. The cylinder head according to claim 3 , wherein sealing member is provided with sealing ring on the slidably movable inner valve seat claim 3 , where the diameter of contact of sealing member with inner valve seat is greater than the diameter of seating face of this inner valve seat with ring-shaped valve.5. The cylinder head ...

INTERNAL COMBUSTION ENGINE HAVING A SPLIT CRANKCASE

An internal combustion engine has a crankcase having a first crankcase portion fastened to a second crankcase portion along a first plane, a crankshaft, a cylinder block defining two cylinders, two pistons, and a cylinder head. A crankshaft support defines a crankshaft support aperture. A central portion of the crankshaft is received in the crankshaft support aperture. At least one fastener fastens the crankshaft support to the cylinder block. The at least one fastener is perpendicular to a crankshaft axis and is disposed in a second plane. The crankshaft axis is normal to the first plane. The second plane is one of coplanar with and parallel to the first plane. 1. An internal combustion engine comprising:a crankcase having a first crankcase portion fastened to a second crankcase portion, the first crankcase portion being joined to the second crankcase portion along a first plane,the first crankcase portion having a first wall defining a first crankshaft support aperture,the second crankcase portion having a second wall defining a second crankshaft support aperture;a crankshaft having a first end portion, a second end portion and a central portion, the crankshaft being rotatably supported inside the crankcase,the crankshaft being rotatable about a crankshaft axis, the crankshaft axis being normal to the first plane,the first end portion being received in the first crankshaft support aperture, the second end portion being received in the second crankshaft support aperture;a cylinder block fastened to the crankcase, the cylinder block defining two cylinders, each of the two cylinders having a cylinder axis;two pistons operatively connected to the crankshaft, the two pistons being disposed in the two cylinders;a cylinder head fastened to the cylinder block, the cylinder block being disposed between the cylinder head and the crankcase;a crankshaft support defining a third crankshaft support aperture,the third crankshaft support aperture being coaxial with the first ...

DIESEL ENGINE COMBUSTION CHAMBER, METHOD FOR IGNITING A FUEL-AIR MIXTURE IN A COMBUSTION CHAMBER OF A DIESEL ENGINE AND DIESEL ENGINE

The present invention relates to a combustion chamber of a diesel engine in accordance with the preamble of Claim a method for igniting a fuel-air mixture in a combustion chamber of a diesel engine in accordance with the preamble of Claim and a diesel engine in accordance with the preamble of Claim 12173467. Ignition chamber of a combustion engine , presenting a piston with a piston bottom surface and a cylinder head () and possessing an ignition chamber axis () , whereby in the piston bottom surface and/or in the cylinder head surface at least one depression ( , ) is foreseen , characterized by the fact that one ignition device () is disposed alongside the ignition chamber axis () , the ignition device being adjusted so as to create linear ignition alongside the ignition chamber axis.23132. Ignition chamber as described in claim 1 , characterized by the fact that depression () is created in the cylinder head () claim 1 , whereby depression () has the form of a cone whose tip is not oriented towards the surface of piston () claim 1 , the ignition device being positioned in the tip of the cone.33132. Ignition chamber as described in claim 1 , characterized by the fact that depression () is created in the cylinder head () claim 1 , whereby depression () has the form of a truncated cone whose upper surface is not oriented towards the surface of piston () claim 1 , the ignition device being positioned in the center of the upper surface of the truncated cone.4313. Ignition chamber as described in claim 1 , characterized by the fact that depression () is created in the cylinder head () claim 1 , whereby depression () has the form of a step created by the combination between a cone and at least two truncated cones or by the combination of at least two truncated cones claim 1 , the ignition device being positioned at the tip of the cone or in the center of the upper surface of the truncated cone.5441. Ignition chamber as described in one of the claims above claim 1 , ...

ENGINE

An engine includes a cylinder head, an ignition plug disposed in the cylinder head, a head partition wall disposed on the cylinder head to surround a periphery of the ignition plug, an injector disposed in the cylinder head and having an injection hole exposed outside the head partition wall, a cylinder block coupled to the cylinder head, a cylinder formed in the cylinder block, a piston disposed in the cylinder, and a piston partition wall disposed on a crown surface of the piston to face the head partition wall in a sliding direction of the piston. The height of the piston partition wall from the crown surface on the side closer to the injector is less than the height of the piston partition wall from the crown surface on the side farther from the injector. 2. The engine according to claim 1 , wherein a groove extending in an injection direction of the injector is formed withinan inner wall surface of the piston partition wall.3. The engine according to claim 1 , wherein the head partition wall is configured in such a manner that a height from an inner wall surface of the cylinder head on a side closer to the injector is greater than a height from the inner wall surface of the cylinder head on a side farther from the injector.4. The engine according to claim 2 , wherein the head partition wall is configured in such a manner that a height from an inner wall surface of the cylinder head on a side closer to the injector is greater than a height from the inner wall surface of the cylinder head on a side farther from the injector.5. The engine according to claim 1 , wherein a clearance is formed at at least a part in a circumferential direction between the head partition wall and the piston partition wall when the head partition wall and the piston partition wall are located closest to each other.6. The engine according to claim 2 , wherein a clearance is formed at at least a part in a circumferential direction between the head partition wall and the piston partition ...

GENERATOR SET

The invention relates to a generator set, in particular a generator set of a hybrid vehicle, with a two-cylinder piston engine (), which has a crankshaft housing (), in which two counter-rotating crankshafts () are arranged, which are connected by means of piston rods () to pistons (), which are guided inside two cylinders () in a tandem arrangement, wherein at least one crankshaft () is drivingly connected to a generator (), and wherein the piston engine () comprises a cylinder head (), which is connected to the crankshaft housing (), wherein the piston engine () has a lower-mounted camshaft (), and the cylinder head () can be connected to the crankshaft housing () in at least two positions, in particular positions rotated through 180° relative to each other. Furthermore, the invention relates to a vehicle with such a generator set. 111-. (canceled)12. A hybrid vehicle generator apparatus comprising:a two-cylinder piston engine having a crankshaft housing;two counter-rotating crankshafts configured and arranged in the crankshaft housing, the crankshafts connected by piston rods to pistons guided inside the two cylinders of the piston engine in a tandem arrangement, wherein at least one crankshaft is drivingly connected to a generator, and wherein the piston engine has a cylinder head connected to the crankshaft housing; anda lower-mounted camshaft such that the cylinder head is connectable to the crankshaft housing in one of at least two positions having 180° relative rotation to each other.13. The hybrid vehicle generator apparatus of claim 12 , wherein the camshaft is configured and arranged in a central plane between the crankshafts.14. The hybrid vehicle generator apparatus of claim 12 , wherein the camshaft is configured and arranged below a dead center bottom of the pistons.15. The hybrid vehicle generator apparatus of further comprising:an intake stub pipe included in the cylinder head for an ignition mixture; andan outlet stub pipe for exhaust gases, ...

ENGINE WITH COMBUSTION CHAMBER

An engine is provided, which includes a combustion chamber defined by a cylinder head and a piston inside a cylinder of a cylinder block, a fuel injection nozzle provided to the cylinder head and formed in a tip-end part with an injection hole from which fuel is injected into the combustion chamber, the tip-end part being exposed to the combustion chamber, and a passage-forming member formed with a passage through which the fuel injected from the injection hole passes. An outer circumferential surface of the passage-forming member contacts a combustion-chamber ceiling surface of the cylinder head, and the passage of the passage-forming member includes an enlarged part gradually increasing in a cross-sectional area thereof from an upstream side to a downstream side of the passage.

Piston for Use in an Engine

A piston having an outer surface and a bottom surface. The bottom surface comprises a convex region, a concave region, and a circumferential edge. The convex region is intersected by a longitudinal piston axis defined by the piston. The convex region is radially inward of and in contact with the concave region, the concave region is radially inward of an in contact with the circumferential edge, and the circumferential edge is radially inward of and in contact with the outer surface. 1. An engine , comprising:an engine block;a cylinder head mounted to the engine block;a combustion chamber formed at least partially by the cylinder head; and a convex region being intersected by a longitudinal piston axis defined by the piston;', 'a concave region; and', 'a circumferential edge, the convex region being radially inward of and in contact with the concave region, the concave region being radially inward of and in contact with the circumferential edge, and the circumferential edge being radially inward of and in contact with the outer surface., 'a piston slidably disposed in the engine block and configured to reciprocate therein, the piston comprising a bottom surface and an outer surface and a sidewall, the sidewall facing radially outward to mate with a cylinder of the engine, the sidewall contacting the outer surface, the bottom surface and the outer surface forming a portion of the combustion chamber, the bottom surface comprising2. The engine of claim 1 , wherein the outer surface and a peak of the convex region are level relative to one another claim 1 , as viewed in a central cross sectional view of the piston.3. The engine of claim 1 , wherein the bottom surface does not comprise a vertical region in alignment with the longitudinal piston axis.4. The engine of claim 1 , a radius of the piston is measured perpendicularly from the longitudinal piston axis to an outside circumferential edge of the outer surface claim 1 , a radius of the bottom surface is measured ...

ENGINE DEVICE

An engine device having gas injectors attached to an intake manifold fixed to a side surface of a cylinder head. A fuel gas injected from the gas injectors is premixed in the intake manifold, and the resulting gas is supplied to a plurality of cylinders and ignited by ignition devices. The intake manifold has a configuration in which a plurality of intake branch pipes communicating with the cylinders are branched from an intake collecting pipe at an air supply side. The intake branch pipes include bent portions. In the bent portions of the intake branch pipes, inside inner walls near the cylinder head are bent at an acute angle. 1. An engine device including: a cylinder head; an intake manifold fixed to a side surface of the cylinder head; and a gas injector attached to the intake manifold , the engine device being configured such that a fuel gas injected from the gas injector is premixed in the intake manifold , supplied into a plurality of cylinders , and ignited by an ignition device , wherein:the intake manifold has a configuration in which a plurality of intake branch pipes communicating with the cylinder are branched from an intake collecting pipe at an air supply side, each of the intake branch pipes having a bent portion; andin the bent portion of each of the intake branch pipes, an inside inner wall near the cylinder head is bent at an acute angle.2. The engine device according to claim 1 , wherein:the cylinder head is fixed to an upper surface of a cylinder block; andin the intake manifold, the intake collecting pipe is disposed at a side of the cylinder block, the intake branch pipes extend upward from the intake collecting pipe, and have the bent portions at a side of the cylinder head, and a gas injecting port of the gas injector is inserted in the bent portion.3. The gas device according to claim 2 , whereinin the intake manifold, a gas injection direction in which a fuel gas is injected from a gas injecting port of the gas injector is a direction ...

CYLINDER HEAD

An internal combustion engine-includes at least one cylinder crankcase, at least one cylinder head () including at least one valve cover (), charge-cycle valves, a valve train-assembly, injectors (), an injector cable harness, injection lines (), a fuel rail () and a pre-separator for separating the oil aerosols present in the blow-by volume flow being situated in the cylinder head (). 18-. (canceled)9. An internal combustion engine comprising:a cylinder crankcase;a cylinder head including a valve cover, charge-cycle valves, a valve train-assembly, an injector, an injector cable harness, injection lines, a fuel rail and a pre-separator for separating oil aerosols present in a blow-by volume flow situated in the cylinder head.10. The internal combustion engine as recited in claim 9 , wherein the internal combustion engine conducts oil aerosols from the cylinder crankcase through an area between the cylinder head and the valve cover.11. The internal combustion engine as recited in claim 9 , wherein an area including the fuel rail and provided as a pre-separation chamber for the oil aerosol separation is situated between the cylinder head and the valve cover.12. The internal combustion engine as recited in claim 9 , wherein a drainage passage is situated in the cylinder head in such a way that separated oil is discharged through the cylinder crankcase into an oil pan.13. The internal combustion engine as recited in claim 9 , wherein an area in the cylinder head in which the injector is situated and an area in which the fuel rail is situated are separated from one another by a deflector plate and a web claim 9 , the deflector plate being configured in a manner of a maze.14. The internal combustion engine as recited in claim 13 , at least one of the web and the deflector plate includes drip edges.15. The internal combustion engine as recited in claim 9 , wherein an area in which the fuel rail is situated includes a splashboard claim 9 , the splashboard delimiting a ...

COMBUSTION CHAMBER ASSEMBLY UNIT

A combustion chamber assembly unit for a fuel-operated vehicle heater includes a combustion chamber housing () elongated in a direction of a housing longitudinal axis (L), with a combustion chamber () radially outwardly bounded by a circumferential wall (), and with a combustion chamber bottom () axially delimiting the combustion chamber (). A combustion air feed volume () is provided that is open to the combustion chamber () via a plurality of passage openings (). A cooling medium feed device () is provided for feeding a liquid cooling medium to the combustion air feed volume (). 1. A combustion chamber assembly unit for a fuel-operated vehicle heater , the combustion chamber assembly unit comprising:a combustion chamber housing elongated in a direction of a housing longitudinal axis, the combustion chamber housing comprising a combustion chamber circumferential wall delimiting a combustion in a radial direction and a combustion chamber bottom axially delimiting the combustion chamber;a combustion air feed volume open to the combustion chamber via a plurality of passage openings in the combustion chamber housing; anda cooling medium feed device for feeding a liquid cooling medium to the combustion air feed volume.2. A combustion chamber assembly unit in accordance with claim 1 , further comprising an outer circumferential wall surrounding the combustion chamber circumferential wall on an outside claim 1 , wherein:the combustion chamber circumferential wall cooperates with the combustion chamber circumferential wall to form a combustion air feed chamber of the combustion air feed, between the combustion chamber circumferential wall and the outer circumferential wall; andthe combustion air feed chamber is open to the combustion chamber over at least some of the passage openings; andthe cooling medium feed device comprises at least one cooling medium feed line for releasing liquid cooling medium into the combustion air feed chamber.3. A combustion chamber assembly ...

CYLINDER BLOCK FOR INTERNAL COMBUSTION ENGINE

A cylinder block is provided with a cylinder bore wall section configured to support a piston which reciprocates in a cylinder bore. The cylinder bore wall section includes a hollow portion at a location of the cylinder bore wall section on the side away from a cylinder head in the cylinder axial direction. The width of the hollow portion in the cylinder radial direction is greater on the side away from the cylinder head in the cylinder axial direction than the side closer to the cylinder head. 1. A cylinder block for an internal combustion engine , comprising a cylinder bore wall section configured to support a piston which reciprocates in a cylinder bore ,wherein the cylinder bore wall section includes a hollow portion at a location of the cylinder bore wall section on a side away from the cylinder head in a cylinder axial direction, andwherein a width of the hollow portion in a cylinder radial direction is greater on the side away from the cylinder head in the cylinder axial direction than on a side closer to the cylinder head.2. The cylinder block according to claim 1 ,wherein the hollow portion is formed such that the width of the hollow portion in the cylinder radial direction becomes gradually greater as the hollow portion becomes farther away from the cylinder head in the cylinder axial direction.3. The cylinder block according to claim 1 ,wherein the cylinder block further comprises a water jacket formed so as to surround the cylinder bore wall section, andwherein, in a view of the cylinder block from the cylinder axial direction, with respect to a cylinder circumferential direction, the hollow portion is formed only at a location of the cylinder bore wall section on an inner side in the cylinder radial direction than the water jacket. This application is based on and claims the benefit of Japanese Patent Application No. 2016-467110, filed on Aug. 29, 2016, which is incorporated by reference herein in its entirety.The present disclosure relates to a ...

Arrangement of a fuel injection valve on a fuel distributor of an internal combustion engine

The invention relates to an arrangement for connecting at least one fuel injection valve with a fuel distributor of a fuel injection system of an internal combustion engine, which fuel distributor is detachably fastened to a cylinder head, wherein the at least one fuel injection valve is detachably fastened by means of a fixing element to a mounting element of the fuel distributor. It is provided that a non-cylinder-facing surface of the mounting element of the fuel distributor and a cylinder-facing surface of the fixing element, in the assembled state of the cylinder head and fuel distributor and also the fuel injection valve, are configured as contact surfaces, by means of which, through attachment of the fixing element to the fuel injection valve, it is possible to bring about an axial fixing and a radial orientation of the fuel injection valve in the cylinder head and in the mounting element of the fuel distribution rail.

CYLINDER HEAD HAVING WEAR RESISTANT LASER PEENED PORTIONS

A cylinder head for an internal combustion engine system is disclosed. The cylinder head has at least one fuel injector. Further, the cylinder head has at least one valve reciprocally moveable with at least one valve guide disposed within the cylinder head. The cylinder head includes a portion. The portion defines an injector mount surface. The cylinder head also includes at least one injector bore disposed within the cylinder head. The injector bore is structured and arranged to receive the injector therein. The cylinder head also includes a peening area being defined on the injector mount surface of the cylinder head. The peening area defines a region being laser peened, such that a compressive stress is induced in the peening area. The compressive stress is induced to an effective depth of approximately up to 2 mm from the injector mount surface. 1a portion of the cylinder head defining an injector mount surface and at least one injector bore disposed within the cylinder head, the injector bore being structured and arranged to receive the injector therein; anda peening area being defined on the injector mount surface of the cylinder head, the peening area defining a region being laser peened such that a compressive stress of around 300 MPa to 600 MPa is induced in the peening area, to an effective depth of approximately up to 2 mm from the injector mount surface.. A cylinder head for an internal combustion engine system using at least one fuel injector to deliver fuel from the cylinder head, and the cylinder head having at least one valve reciprocally moveable with at least one valve guide disposed within the cylinder head, the cylinder head comprising: The present disclosure relates to a cylinder head for an internal combustion engine, and more particularly to portions of the cylinder head which undergo laser peening.Some portions of a cylinder head, such as, for example, valve guides and injector bores of an Internal Combustion (IC) engine are subjected to high ...

CYLINDER HEAD COVER WITH INTEGRAL SLEEVE

A system includes a cylinder head for a reciprocating engine and a cylinder head cover configured to couple to the cylinder head. The cylinder head cover may include an ignition plug sleeve extension configured to house a portion of an ignition plug within the cylinder head cover. The ignition plug sleeve extension is integral to the cylinder head cover. 1. A system , comprising:a cylinder head for a reciprocating engine; anda cylinder head cover configured to couple to the cylinder head, wherein the cylinder head cover comprises an ignition plug sleeve extension configured to house a portion of an ignition plug within the cylinder head cover, and the ignition plug sleeve extension is integral to the cylinder head cover.2. The system of claim 1 , wherein the cylinder head cover and the ignition plug sleeve extension are cast.3. The system of claim 1 , wherein the ignition plug sleeve extension defines an inner annular wall of the cylinder head cover.4. The system of claim 3 , wherein the inner annular wall is centrally located within the cylinder head cover.5. The system of claim 4 , wherein a portion of the inner annular wall extends into the cylinder head.6. The system of claim 3 , wherein the inner annular wall defines a first bore portion having a first inner diameter and a second bore portion having a second inner diameter claim 3 , and the first inner diameter is greater than the first bore portion.7. The system of claim 1 , wherein the cylinder head comprises an ignition plug sleeve claim 1 , and the ignition plug sleeve extension and ignition plug sleeve directly contact each other.8. The system of claim 7 , wherein the ignition plug sleeve extension and the ignition plug sleeve directly contact each other at an interface between the cylinder head cover and the cylinder head.9. The system of claim 7 , wherein the ignition plug sleeve extension and the ignition plug sleeve directly contact each other within the cylinder head.10. The system of claim 1 , ...

VALVE COVER WITH INTEGRATED SPARKPLUG TUBE

A valve cover for an engine and a method is provided. The valve cover may include a cover body, and a sparkplug tube formed integrally with the cover body. In this way, any distortion of the bottom end of the sparkplug tubes due to, for example removal and reinstallation may not provide a leakage path. 1. A valve cover for an engine comprising:an integral structure including a cover body and a sparkplug tube formed integrally with and molded-into the cover body, a sealed joint between the sparkplug tube and cover body eliminated;a Coil On Plug (COP) located in the sparkplug tube and extending partway out of; anda COP boot sealingly coupled inside the COP.2. The valve cover of claim 1 , wherein the COP couples to a top outer edge of the sparkplug tube.3. The valve cover of claim 2 , wherein the cover body comprises a first material and the sparkplug tube comprises a second material claim 2 , wherein the first material is different from the second material.4. The valve cover of claim 3 , wherein the sparkplug tube includes a sealing arrangement on or adjacent a distal end thereof for sealing with a cylinder head.5. The valve cover of claim 4 , wherein the sealing arrangement includes an O-ring groove and an O-ring configured for sealing engagement with an annular surface of a sparkplug well in the cylinder head.6. The valve cover of claim 4 , wherein the sealing arrangement includes a face seal disposed on an edge of the sparkplug tube and configured for sealing engagement with a base of a sparkplug well.7. The valve cover of claim 2 , wherein the cover body includes a substantially planar coupling edge for coupling with a cylinder head claim 2 , and wherein the sparkplug tube extends past the coupling edge.8. A valve cover comprising:a covering body having a coupling edge configured to couple with a cylinder head of an engine; andan enclosed passage having a second end fixedly coupled with the covering body and a first end for sealing engagement with a sparkplug well ...

METHOD FOR REMANUFACTURING MACHINE COMPONENT

A method of remanufacturing a surface of a machine component is provided. The method includes attaching the machine component to a support fixture. The method also includes moving a surface evaluating device relative to the surface of the machine component. The method further includes generating a set of data points using the surface evaluating device. The method includes communicating the set of data points generated by the surface evaluating device to a control module. The method also includes determining a depth of wear on the surface, based on the set of data points received by the control module. The method further includes determining an amount of material to be removed from the surface, based on the depth of wear. The method includes performing a machining operation on the surface for removing the determined amount of material. 1attaching the machine component to a support fixture;moving a surface evaluating device relative to the surface of the machine component;generating a set of data points using the surface evaluating device, wherein the set of data points are indicative of dimensional characteristics of the surface of the machine component;communicating the set of data points generated by the surface evaluating device to a control module;determining a depth of wear on the surface, based on the set of data points received by the control module,determining an amount of material to be removed from the surface, based on the depth of wear; andperforming a machining operation on the surface for removing the determined amount of material.. A method of remanufacturing a surface of a machine component, the method comprising: The present disclosure generally relates to a method for remanufacturing a machine component.Machines, such as those used in construction industries, include an engine to power various components of the machine. The engine is subjected to a variety of loads or stresses during operation of the machine. More specifically, the engine includes a ...

CYLINDER HEAD COVER

A cylinder head cover for a cylinder head of a piston engine may include a cover body for mounting on the cylinder head. The cover body may include a cover body section and a first longitudinal side edge disposed opposite a second longitudinal side edge. An outer cover seal may seal off the cover body from the cylinder head and extend completely around along an outer edge of the cover body. A securing bridge may be fitted over the cover body on an outer side along the cover body section from the first longitudinal side edge of the cover body to the second longitudinal side edge. 1. A cylinder head cover for a cylinder head of a piston engine , comprising:a cover body for mounting on the cylinder head,an outer cover seal for sealing off the cover body from the cylinder head, said outer cover seal extending completely around along an outer edge of the cover body, anda securing bridge for mounting on the cylinder head, said securing bridge fitting over the cover body on an outer side along a cover body section from a first longitudinal side edge of the cover body to an opposite second longitudinal side edge.2. The cylinder head cover according to claim 1 , whereinthe cover body has a cover opening disposed in the cover body section,the securing bridge has a pump console for mounting a fuel pump, andthe pump console has a bridge opening inside the cover opening, the bridge opening passing through the securing bridge, and wherein the bridge opening is configured to receive a pump drive that interacts with a drive cam of a camshaft of the cylinder head, said cylinder head being covered by the cover body, in order to drive the fuel pump.3. The cylinder head cover according to claim 2 , further comprising a bridge seal to seal off the cover body from the securing bridge claim 2 , wherein the bridge seal extends completely around along an inner edge claim 2 , enclosing the cover opening claim 2 , of the cover body.4. The cylinder head cover according to claim 1 , wherein the ...

PISTON

A piston is used for an engine including: an ignition plug disposed in the vicinity of a central axis of a cylinder; intake and exhaust ports disposed at positions where the ignition plug is interposed therebetween; and an injector disposed at a position offset from the ignition plug toward the intake port to inject fuel sprays toward a crown surface of the piston. The piston includes: a recess formed by recessing the crown surface of the piston with respect to other portions of the crown surface, in which the recess includes a step on an outer peripheral edge over the entire circumference thereof with respect to the other portions, and a pair of lateral sides formed straightly so as to extend substantially in parallel to a straight line connecting the injector and the ignition plug when seen in a direction of the cylinder axis. 1. A piston used for an engine that includes:an ignition plug disposed in the vicinity of a central axis of a cylinder;an intake port and an exhaust port disposed at positions where the ignition plug is interposed therebetween; and a recess that is formed by recessing the crown surface of the piston with respect to other portions of the crown surface, wherein', 'the recess includes a step on an outer peripheral edge over the entire circumference thereof with respect to the other portions of the crown surface, and a pair of lateral sides formed straightly so as to extend substantially in parallel to a straight line that connects the injector and the ignition plug when seen in a direction of the cylinder axis., 'an injector disposed at a position offset from the ignition plug toward the intake port to inject a plurality of fuel sprays toward a crown surface of the piston, the piston comprising2. The piston according to claim 1 , wherein the injector is a multiple hole injector that forms a plurality of fuel sprays claim 1 , and the outer peripheral edge of the recess is disposed adjacently to hitting areas formed at least by the last fuel ...

SUPERCHARGED ENGINE DESIGN

The present engine design can comprise one or more three-cylinder modules. Each module can comprise a left-hand combustion cylinder, a compression cylinder and a right-hand combustion cylinder. In an embodiment, the compression cylinder can function as a supercharger providing compressed air to the two combustion cylinders in order to improve performance and efficiency. Each module can comprise a specialized cylinder head comprising an intake air plenum configured to allow pressurized air to flow from the compression cylinder into each of the combustion cylinders. The flow of this pressurized air can be precisely controlled by valves that control airflow into and out of each of the three cylinders. Variable valve timing and computer controls can determine the exact amount of fuel, if any, which will be injected into the combustion cylinders to deliver high fuel economy while delivering an optimal level of power, horsepower and torque. 1. An engine design comprising:an engine block;a crankshaft;at least one three-cylinder module, the three-cylinder module comprising: a left-hand combustion cylinder located within the engine block and a left-hand combustion cylinder piston located within the left-hand combustion cylinder and connected to the crankshaft; a right-hand combustion cylinder located within the engine block and a right-hand combustion cylinder piston located within the right-hand combustion cylinder and connected to the crankshaft; 'wherein the right-hand combustion cylinder and the left-hand combustion cylinder are configured to perform an intake stroke, a compression stroke, a power stroke and an exhaust stroke and the compression cylinder is configured to perform only an intake stroke and a compression stroke; and', 'a compression cylinder located within the engine block and a compression cylinder piston located within the compression cylinder and connected to the crankshaft;'} 'wherein the compression cylinder intake valve and the compression cylinder ...

MACHINERY CASING PORTION

A machinery casing portion for an engine, the machinery casing portion having a first sealing face configured to engage a second sealing face of a second machinery casing portion so as to form a sealed joint therebetween in an assembled configuration, the machinery casing portion comprising: a recess configured to receive a sealant, the recess being provided adjacent to the first sealing face; and at least one opening configured to receive a fastener, wherein the opening at least partially extends into a wall of the recess . 1. A machinery casing portion , the machinery casing portion having a first sealing face configured to engage a second sealing face of a second machinery casing portion so as to form a sealed joint therebetween in an assembled configuration , the machinery casing portion comprising:a recess configured to receive a sealant, the recess being provided adjacent to the first sealing face; andat least one opening configured to receive a fastener, wherein the opening at least partially extends into a wall of the recess.2. The machinery casing portion according to claim 1 , wherein the recess divides the first sealing face into a peripheral bearing portion extending around a periphery of the first sealing face and at least one inner bearing portion claim 1 , each inner bearing portion being adjacent to at least one of the openings.3. The machinery casing portion according to claim 2 , wherein the inner bearing portion adjoins the opening.4. The machinery casing portion according to claim 2 , wherein the inner bearing portion is spaced apart from the opening.5. The machinery casing portion according to claim 2 , wherein the inner bearing portion extends partially around the periphery of the opening.6. The machinery casing portion according to claim 2 , wherein the inner bearing portion comprises a surface area that is configured to resist a proportion of a clamp load applied by the fastener.7. The machinery casing portion according to claim 6 , wherein ...

CAM COVER ASSEMBLY CAP PLUG FOR FLEXIBLE USE OF CYLINDER HEAD ACCESSORY DRIVE

A cam cover cap plug for use with a cylinder head assembly to fill the opening that remains when an accessory unit such as a READ utility pump is not utilized. The cam cover cap plug is preferably a one-piece, molded component formed from a plastic or a metal. The cam cover cap plug includes a back, a front, an upper surface and a lower surface. The upper surface is arched and defines a half-round configuration. The lower surface is flat and includes integrated cylinder head fasteners extending from the flat surface. The arched, half-round configuration of the upper surface provides a full and complete sealing area with the half-round opening of the cam cover formed to receive the accessory unit. The fasteners of the lower surface are preferably integrated dowels. The integrated dowels locate the cam cover cap plug base to the cylinder head of the cylinder head assembly. 15-. (canceled)820-. (canceled)21. A cam cover assembly cap plug for fitting substantially between the cylinder head and a cam cover of a cylinder head assembly , the plug comprising:a body having a back, an arched top and a substantially flat underside;a pair of spaced apart arms extending from said back of said body, said arms being connected by a reinforcing bridge; andan integrally-formed fastener extending from each of said arms for attachment to the cylinder head.22. The cam cover assembly of claim 21 , wherein said substantially flat underside includes a seal-receiving groove.23. The cam cover assembly of claim 21 , wherein said fastener is a dowel.24. The cam cover assembly of claim 23 , wherein said dowel is a split dowel.25. The cam cover assembly of claim 21 , further including a front side and wherein at least one of said front and said back includes a recessed area.26. The cam cover assembly of further including a front side and wherein at least one of said front and said back includes at least one reinforcing rib.27. A cylinder head assembly comprising:a cylinder head having an upper ...

COMBUSTION ENGINE, CYLINDER FOR A COMBUSTION ENGINE, AND CYLINDER LINER FOR A COMBUSTION ENGINE

A combustion engine includes a combustion engine piston cylinder including an interior wall surface, the interior wall surface having a textured pattern comprising a plurality of texture elements over at least part of an axial length of the interior will surface. An area density and/or a volume of the texture elements of the textured pattern for a given surface area of the interior wall surface and/or a depth of the texture elements increases toward a center of the axial length of the interior wall surface. 1. A combustion engine , comprising:a combustion engine piston cylinder comprising an interior wall surface, the interior wall surface having a textured pattern comprising a plurality of texture elements over at least part of an axial length of the interior wall surface, wherein a volume of the texture elements of the textured pattern for a given surface area of the interior wall surface increases toward a center of the axial length of the interior wall surface.2. The combustion engine as set forth in claim 1 , wherein a depth of texture elements forming the textured pattern increases toward a center of the axial length of the interior wall surface.32. The combustion engine as set forth in any of - claims 1 , wherein a depth of texture elements forming the textured pattern increases relative to a depth of texture elements forming the textured pattern further from the center of the axial length of the interior wall.43. The combustion engine as set forth in any of - claims 1 , wherein both toward the center of the axial length of the interior wall surface and in regions more remote from the center of the axial length of the interior wall the textured pattern comprises substantially a same percentage of the given surface area of the interior wall surface.53. The combustion engine as set forth in any of - claims 1 , wherein the textured pattern comprises a larger percentage of a given surface area of the interior wall surface toward the center of the axial length of ...

ENGINE CONFIGURATION HAVING VARIOUS DISPLACEMENTS

Various embodiments provide a method of varying engine displacement. The method includes determining a change in a stroke distance of the engine required to obtain a pre-determined volumetric change in a displacement of the engine. The method includes machining a top surface of a crankcase so as to remove a height of material from the crankcase. The height is calculated to correspond to the change in the stroke of the engine required to obtain the volumetric change in the displacement of the engine. The method also includes coupling the crankcase to an engine block portion of the engine. 1. A method of varying a displacement of an engine comprising:determining a change in a stroke distance within each of a quantity of cylinders, the change in the stroke distance of the engine required to obtain a pre-determined volumetric change in a displacement of the engine;machining a top surface of a crankcase so as to remove a height of material from the crankcase, the height of material calculated to correspond to the change in the stroke distance of the engine required to obtain the volumetric change in the displacement of the engine; andcoupling the top surface of the crankcase to a mating surface of an engine block portion of the engine.2. The method of claim 1 , wherein the engine block portion is integrally formed with a cylinder head portion.3. The method of claim 2 , further comprising installing a crankshaft in the crankcase claim 2 , the crankshaft being selected to accommodate the height of material removed.3. The method of claim 3 , wherein the crankshaft is selected to decrease the stroke distance.4. The method of claim 2 , further comprising coupling a valve cartridge assembly to the cylinder head portion of the engine block portion at a cartridge slot claim 2 , the valve cartridge assembly comprising:a cartridge housing including a port and a valve seat defining a valve seat opening;a valve coupled to the cartridge housing and positioned, in part in the ...

METHOD FOR MANUFACTURING ENGINE

A method for manufacturing an engine includes: preparing, as a preparing step, a cylinder head having a surface on which a ceiling surface of a combustion chamber is formed; forming, as a film formation step, a thermal insulation film on the ceiling surface; measuring, as a measurement step, a volume of the thermal insulation film; and selecting, as a selection step, from a plurality of ranks set in correspondence with compression heights of pistons, the rank of the piston to be combined with the ceiling surface, the selected rank corresponding to an amount of difference of the measured volume of the thermal insulation film from a design value of the volume of the thermal insulation film. 1. A method for manufacturing an engine , the method comprising:preparing, as a preparing step, a cylinder head having a surface on which a ceiling surface of a combustion chamber is formed;forming, as a film formation step, a thermal insulation film on the ceiling surface;measuring, as a measurement step, a volume of the thermal insulation film; andselecting, as a selection step, from a plurality of ranks set in correspondence with compression heights of pistons, the rank of the piston to be combined with the ceiling surface, the selected rank corresponding to an amount of difference of the measured volume of the thermal insulation film from a design value of the volume of the thermal insulation film.2. The method according to claim 1 , further comprising:recording, on the surface of the cylinder head, information related to the rank selected in the selection step.3. The method according to claim 1 , wherein in the selection step claim 1 , the selected rank of the piston is the rank having the compression height that minimizes an amount of difference of a capacity of the combustion chamber at a time of the piston being in a top dead center position from a design value of the capacity of the combustion chamber claim 1 , the amount of difference of the capacity of the combustion ...

METHODS AND SYSTEMS FOR AN ENGINE WITH REMOVABLE CAMSHAFT CARRIER

Methods and systems are provided for a cylinder head with an exterior wall including a removable camshaft carrier. In one example, a cylinder head includes a camshaft carrier removably couplable to a mount surface of the cylinder head and adapted to form a portion of an exterior wall of the cylinder head while coupled to the mount surface. The camshaft carrier may include a first section removably couplable to the cylinder head and a second section removably couplable to the first section, with the first section and the second section together shaped to receive a camshaft journal. 1. A system for an engine , comprising:a cylinder head; anda camshaft carrier removably couplable to a mount surface of the cylinder head and adapted to form a portion of an exterior wall of the cylinder head while coupled to the mount surface.2. The system of claim 1 , wherein the mount surface is arranged at a terminal end of a recess formed by the exterior wall claim 1 , with the camshaft carrier removably couplable to the mount surface within the recess.3. The system of claim 2 , wherein the recess further comprises an open end arranged opposite to the terminal end claim 2 , with the camshaft carrier shaped to extend through the open end while coupled to the mount surface at the terminal end.4. The system of claim 3 , wherein the camshaft carrier is shaped to support a camshaft journal at the open end.5. The system of claim 2 , wherein the mount surface is one of a plurality of coplanar mount surfaces formed by the exterior wall at the terminal end of the recess claim 2 , with the camshaft carrier shaped to seat against each coplanar mount surface of the plurality of coplanar mount surfaces.6. The system of claim 2 , wherein the camshaft carrier includes a first section removably couplable with the mount surface and a second section removably couplable with the first section claim 2 , where the first section includes a first bearing portion and the second section includes a second ...

Engine Servicing System

An engine servicing system includes a motorcycle that has an engine. The engine has a cylinder head, an intake valve and an exhaust valve. A mount is provided and the mount is selectively coupled to the cylinder head. A plurality of bolts is provided and each of the bolts extends through the mount and engages the cylinder head at predetermined points on the cylinder head to retain the mount on the cylinder head. A compression unit is provided and the compression unit is removably coupled to the mount. The compression unit engages each of the intake valve and the exhaust valve such that the compression unit selectively compresses each of the intake valve and the exhaust valve. In this way each of the intake valve and the exhaust valve may be serviced while the engine is mounted in the motorcycle and without removing the cylinder head from the engine. 1. An engine servicing system for compressing valve springs on an assembled engine , said system comprising:a motorcycle having an engine, said engine having a cylinder head, an intake valve and an exhaust valve;a mount being selectively coupled to said cylinder head;a plurality of bolts, each of said bolts extending through said mount and engaging said cylinder head at predetermined points on said cylinder head to retain said mount on said cylinder head; anda compression unit being removably coupled to said mount wherein said compression unit is configured to be manipulated, said compression unit engaging each of said intake valve and said exhaust valve such that said compression unit selectively compresses each of said intake valve and said exhaust valve thereby facilitating each of said intake valve and said exhaust valve to be serviced while said engine is mounted in said motorcycle without removing said cylinder head from said engine.2. The system according to claim 1 , wherein said mount comprises a first plate having a first surface claim 1 , a second surface and a perimeter edge extending therebetween claim 1 , ...

Valve Component for Regulating or Controlling a Fluid Pressure

A valve component is provided with a unit for regulating or controlling a fluid pressure and is further provided with an expansion chamber. The unit has a valve housing with a first housing part and a second housing part, between which a switching element is arranged. The first housing part has an inlet and an outlet for a fluid. The switching element is arranged between the inlet and the outlet for regulating, releasing or shutting of a flow of the fluid. The switching element separates two chambers in the valve housing from each other. In open switching position of the switching element, the inlet and the outlet are connected by one of the chambers, and at least one first venting bore opens from the other one of the chambers into the expansion chamber. 1. A valve component comprising:at least one expansion chamber; a valve housing comprising a first housing part and a second housing part;', 'the first housing part comprising an inlet and an outlet for a fluid:', 'a switching element arranged between the first housing part and the second housing part between the inlet and the outlet and configured to regulate, release or shut off a flow of the fluid, wherein the switching element separates a first chamber and a second chamber in the valve housing from each other;, 'a unit configured to regulate or control a fluid pressure, the unit comprisingwherein, in an open switching position of the switching element, the inlet and the outlet are connected to each other by the first chamber of the valve housing and wherein at least one first venting bore of the valve housing opens from the second chamber of the valve housing into the at least one expansion chamber.2. The valve component according to claim 1 , wherein the at least one expansion chamber is arranged at the second housing part.3. The valve component according to claim 2 , wherein the valve housing comprises a cover claim 2 , wherein the second housing part and the cover enclose the expansion chamber.4. The valve ...

MULTI-CYLINDER INTERNAL COMBUSTION ENGINE

The disclosure provides a multi-cylinder internal combustion engine having a cylinder head that includes an exhaust port capable of cooling exhaust gas more effectively. The cylinder head includes: a first ceiling surface that closes a first cylinder having a cylinder axis separated from an exhaust opening by a first distance; a second ceiling surface that closes a second cylinder having a cylinder axis separated from the exhaust opening by a second distance shorter than the first distance; and an exhaust port that extends toward the exhaust opening from two port openings which are open to a combustion chamber for each individual cylinder. The exhaust port individually extends from each of the port openings and merges with each cylinder outside a joining surface of the cylinder head for a cylinder block in a plan view. 11115. A multi-cylinder internal combustion engine () , comprising a cylinder head () which comprises:{'b': 24', '37', '1, 'i': 'a', 'a first ceiling surface () that closes a first cylinder having a cylinder axis (C) separated from an exhaust opening () by a first distance (L);'}{'b': 24', '37', '2', '1, 'i': 'b', 'a second ceiling surface () that closes a second cylinder having a cylinder axis (C) separated from the exhaust opening () by a second distance (L) shorter than the first distance (L); and'}{'b': 32', '37', '26', '18, 'an exhaust port () that extends toward the exhaust opening () from two port openings () which are open to a combustion chamber () for each individual cylinder,'}{'b': 32', '26', '27', '15', '13, 'wherein the exhaust port () individually extends from each of the port openings () and merges with each cylinder outside a joining surface () of the cylinder head () for a cylinder block () in a plan view.'}2. The multi-cylinder internal combustion engine according to claim 1 , wherein{'b': 47', '41', '37', '45', '41, 'i': b', 'a, 'a wall () that partitions the two exhaust ports () in the second cylinder extends toward an exhaust ...

ALUMINUM ALLOY FOR CYLINDER HEAD AND METHOD OF MANUFACTURING THE SAME

An aluminum alloy for a cylinder head in a vehicle engine includes 2 to 3% of Si, 2.5 to 3% of Cu, 0.01% or less (excluding 0%) of Zn, 0.15% or less (excluding 0%) of Fe, 0.02% or less (excluding 0%) of Mn, 0.1 to 0.3% of Mg, 0.01% or less (excluding 0%) of Ni, 0.02% or less (excluding 0%) of Ti, 0.1% or less (excluding 0%) of Zr, the balance of Al, and inevitable impurities, wherein an AlCuMgSi-based crystal is formed in an amount ranging from 0.3 to 0.9% and an AlCu-based precipitate is formed in an amount ranging from 3.3 to 4.0%, wherein percentage (%) is based on weight. 1. An aluminum alloy for a cylinder head used in a vehicle engine comprising:2 to 3% of Si;2.5 to 3% of Cu;0.01% or less (excluding 0%) of Zn;0.15% or less (excluding 0%) of Fe;0.02% or less (excluding 0%) of Mn;0.1 to 0.3% of Mg;0.01% or less (excluding 0%) of Ni;0.02% or less (excluding 0%) of Ti;0.1% or less (excluding 0%) of Zr;the balance of Al; andinevitable impurities,{'sub': '2', 'wherein an AlCuMgSi-based crystal is formed in an amount ranging from 0.3 to 0.9% and an AlCu-based precipitate is formed in an amount ranging from 3.3 to 4.0%,'}wherein percentage (%) is based on weight.2. The aluminum alloy according to claim 1 , wherein the aluminum alloy has a thermal conductivity at 200° C. of 185 W/mK or more.3. The aluminum alloy according to claim 1 , wherein the aluminum alloy has a tensile strength of 270 MPa or more.4. The aluminum alloy according to claim 1 , wherein the aluminum alloy has a yield strength of 197 MPa or more and an elongation of 1.6% or more.5. A method of producing an aluminum alloy for a cylinder head used in a vehicle engine comprising:casting molten composition comprising 2 to 3% of Si, 2.5 to 3% of Cu, 0.01% or less (excluding 0%) of Zn, 0.15% or less (excluding 0%) of Fe, 0.02% or less (excluding 0%) of Mn, 0.1 to 0.3% of Mg, 0.01% or less (excluding 0%) of Ni, 0.02% or less (excluding 0%) of Ti, 0.1% or less (excluding 0%) of Zr, the balance of Al and ...

CAVITATION ANTI-RESONANCE AND ANTI-SOOT END PIECE FOR PRESSURE SENSOR OF AN INTERNAL COMBUSTION ENGINE

A pressure sensor for an internal combustion engine, which includes: a body containing a pressure-measuring membrane and a device for attaching to the cylinder head of the engine; and an end piece which extends substantially in an axial extension of the body, and includes a long part, and a substantially hemispherical convexity positioned on the end part of the long part. 2. The pressure sensor as claimed in claim 1 , wherein the elongate part has a cross section of 1 to 3 mm in diameter at its base claim 1 , a cross section of 2 to 6 mm in diameter on its terminal end and an axial length of 5 to 9 mm.3. The pressure sensor as claimed in claim 1 , wherein the elongate part of the end piece is mounted on the body of the sensor by at least one flexible fastening means.4. The pressure sensor as claimed in claim 1 , wherein the body and the end piece are joined by welding.5. The pressure sensor as claimed in claim 1 , wherein at least one part of the end piece is composed of an elastically deformable material.6. An end piece for a pressure sensor comprising an elongate part comprising a portion of frustoconical shape claim 1 , and a substantially hemispherical convexity positioned on the terminal part of said elongate part.7. The end piece for a pressure sensor as claimed in claim 6 , wherein all of the elongate part of said end piece is of frustoconical shape and flares toward the convexity of the end piece.8. The end piece for a pressure sensor as claimed in claim 7 , wherein the elongate part has a cross section of 1 to 3 mm in diameter at its base claim 7 , a cross section of 2 to 6 mm in diameter on its terminal end and an axial length of 5 to 9 mm.9. An internal combustion engine cylinder head comprising claim 1 , on the one hand claim 1 , a bore comprising a thread and a tubular cavity and claim 1 , on the other hand claim 1 , a pressure sensor as claimed in fastened by a thread of the aforesaid bore such that the end piece is erected in the tubular cavity.10. A ...

Stud fasteners for fastening a cylinder head to an engine block and kit containing said stud fasteners

The present invention relates generally to fastening systems, and more specifically, to high tensile or high strength studs. The studs are adapted to be utilized in original manufacture or in the repair or retrofit of internal combustion engines. The improved stud technology can be utilized in the fabrication of new engine builds to improve reliability, extend product life, and the like. Likewise, the stud technology can be used to repair and/or upgrade a failed, compromised, or questionable cylinder head to engine block fastening system. Additionally, a repair or retrofit a kit can be assembled with the improved studs at its foundation. Optionally, any combination of additional items or components useful in the cylinder head to engine block fastener modification can be added to such a kit.

METHOD FOR MOUNTING A VALVE SEAT RING ON A CYLINDER HEAD OF AN INTERNAL COMBUSTION ENGINE

A method for mounting a valve seat ring on a cylinder head of an internal combustion engine includes providing a valve seat ring, which has a ring height, and which is measured along an axial direction. The valve seat ring includes a support portion made of a support material and a functional portion made of a functional material. The valve seat ring is arranged on the cylinder head and the support portion of the support material is at least partially removed, so that the ring height of the valve seat ring is reduced. 1. A method for mounting a valve seat ring on a cylinder head of an internal combustion engine , the method comprising:a) providing the valve seat ring having a ring height measured along an axial direction, the valve seat ring including a support portion made of a support material and a functional portion made of a functional material;b) arranging the valve seat ring on the cylinder head; andc) at least partially removing the support portion made of the support material, such that the ring height of the valve seat ring is reduced.2. The method according to claim 1 , further comprising:after performing step b):at least partially forming a first axial end portion of the valve seat ring facing the cylinder head by the functional portion; andat least partially forming a second axial end portion of the valve seat ring facing away from the cylinder head by the support portion.3. The method according to claim 1 , wherein a separating surface between the functional portion and the support portion runs at least in portions along a radial direction of the valve seat ring.4. The method according to one of claim 3 , wherein the separating surface between the functional portion and the support portion runs at least in portions along the axial direction of the valve seat ring.5. The method according to claim 1 , further comprising:after performing step b), arranging the support portion and the functional portion next to one another along the axial direction.6. The ...

TIGHTENING STRUCTURE FOR CYLINDER HEAD BOLT

A cylinder head bolt inserted into a cylinder head is threadingly engaged with an engine casing comprised of a cylinder and a crankcase to tighten the cylinder head and the engine casing firmly together. Between a rotation operating part, which is provided in a head of the cylinder head bolt, and an upper surface of the cylinder head, a plain washer and a spring member placed thereabove are interposed. The spring member is capable of exerting an axially acting spring force. A first frictional resistance between the rotation operating part and the spring member is so chosen to be lower than a second frictional resistance between the spring member and the plain washer and a third frictional resistance between the plain washer and a bearing surface on the cylinder head. 1. A tightening structure for a cylinder head bolt to tighten a cylinder head to an engine casing by threadingly engaging a cylinder head bolt , which has been inserted through the cylinder head , into the engine casing including the cylinder and a crankcase , the tightening structure comprising:a plain washer; anda spring member placed over the plain washer to exert a spring force in an axial direction of the bolt, the plain washer and the spring member being disposed between a rotation operating part provided in a head of the cylinder head bolt and an upper surface of the cylinder head, whereina first frictional resistance between the rotation operating part of the cylinder head bolt and the spring member is chosen to be lower than a second frictional resistance between the spring member and the plain washer and a third frictional resistance between the plain washer and a bearing surface defined on the upper surface of the cylinder head.2. The tightening structure for the cylinder head bolt as claimed in claim 1 , wherein the spring member comprises a coned disc spring claim 1 , and the diameter of the coned disc spring at the time of completion of tightening is set to a value greater than the outer ...

Diesel engine combustion chamber, method for igniting a fuel-air mixture in a combustion chamber of a diesel engine and diesel engine

The present invention relates to a combustion chamber of a diesel engine in accordance with the preamble of Claim 1, a method for igniting a fuel-air mixture in a combustion chamber of a diesel engine in accordance with the preamble of Claim 14, and a diesel engine in accordance with the preamble of Claim 15.

CYLINDER HEAD COVER OF INTERNAL COMBUSTION ENGINE

A resin-made molded cylinder head cover, which is light in weight and relatively thin particularly at a flange part thereof comprises a cover part that is rectangular in shape and has a plurality of plug holes aligned in a longitudinally extending center area of the cover part; a flange part that is integral with and extends around a periphery of the cover part, so that the cylinder head cover is shaped like a rectangular shallow dish; and thicker elongate bead portions that are integral with the cover part and extend respectively along laterally opposed sides of the longitudinally extending center area, each bead portion being thicker than a general area of the cover part. 1. A resin-made molded cylinder head cover for an internal combustion engine , comprising:a cover part that is rectangular in shape, the cover part having a plurality of plug holes aligned in a longitudinally extending center area of the cover part;a flange part that is integral with and extends around a periphery of the cover part, so that the cylinder head cover is shaped like a rectangular shallow dish; andthicker elongate bead portions that are integral with the cover part and extend respectively along laterally opposed sides of the longitudinally extending center area, each bead portion being thicker than a general area of the cover part.2. A resin-made molded cylinder head cover as claimed in claim 1 , in which the thicker elongate bead portions are projected elongate portions that are entirely formed on an inner surface of the cover part.3. A resin-made molded cylinder head cover as claimed in claim 2 , in which at least one of the thicker elongate bead portions has a projected elongate section that is formed on an inner surface of the cover part.4. A resin-made molded cylinder head cover as claimed in claim 2 , in which one of the thicker elongate bead portions is a projected elongate portion that is entirely formed on an inner surface of the cover part claim 2 , and another one of the ...

CYLINDER HEAD GASKET

A cylinder head gasket including a stack of layers that includes a first functional layer having an embossed first sealing full bead and a first stopper, a second functional layer having an embossed second sealing full bead, and a carrier layer having an embossed carrier layer full bead. The first sealing full bead and the second sealing full bead are mutually superimposed. The carrier layer full bead and the first stopper are mutually superimposed. The carrier layer full bead when it is fully compressed has a maximum line load range included between 75 and 125 N/mm and assumes a flat configuration. 110-. (canceled)11. A cylinder head gasket comprising a stack of layers including:a first functional layer having an embossed first sealing full bead and a first stopper;a second functional layer having an embossed second sealing full bead, wherein the first sealing full bead and the second sealing full bead are mutually superimposed; anda carrier layer having an embossed carrier layer full bead mutually superimposed with the first stopper, wherein the carrier layer full bead has a maximum line load in a range comprised between 75 and 125 N/mm and assumes a flat configuration when fully compressed.12. The gasket according to claim 11 , wherein the first sealing full bead includes a first convex portion facing a second convex portion of the second sealing full bead.13. The gasket according to claim 11 , wherein the carrier layer full bead has a maximum line load range lower than 30 N/mm at minimum load conditions.14. The gasket according to claim 11 , wherein the second functional layer is positioned between said first functional layer having the stopper and said carrier layer.15. The gasket according to claim 14 , wherein the second functional layer is free from any stoppers.16. The gasket according to claim 11 , wherein the superimposed layers further comprise:a third functional layer including an embossed third sealing full bead having a convex portion; anda fourth ...

FUEL INJECTOR INSERT

An insert for a cylinder head of an internal combustion engine that has a bore for receiving a fuel injector to deliver fuel through an injector nozzle into a combustion chamber. The insert comprises a generally tubular body having a longitudinally oriented passageway therethrough and receivable within the bore in the cylinder head. The generally tubular body has an inner end and an outer end, with the inner end in proximity to the combustion chamber when said insert is received within the bore. The passageway is tapered such that its diameter increases from the inner end toward the outer end. The longitudinal passageway is dimensioned to sealingly receive the nozzle of the fuel injector when the fuel injector is received within the bore. The insert limits blow-by between the insert and the nozzle of the fuel injector during operation of the internal combustion engine. 1. An insert for a cylinder head of an internal combustion engine , the cylinder head including a bore for receiving a fuel injector to deliver fuel through an injector nozzle into a combustion chamber of the engine , the insert comprising:a generally tubular body having a longitudinally oriented passageway therethrough and receivable within the bore in the cylinder head, the generally tubular body having an inner end and an outer end, said inner end in proximity to the combustion chamber when said insert is received within the bore, said passageway tapered such that the diameter of said passageway increases from said inner end toward said outer end, the longitudinal passageway dimensioned to sealingly receive the nozzle of the fuel injector when the fuel injector is received within the bore in the cylinder head, the insert limiting blow-by between the insert and the nozzle of the fuel injector during operation of the internal combustion engine.2. The insert as claimed in wherein said longitudinally oriented passageway is circular in cross section.3. The insert as claimed in wherein the diameter of ...

CYLINDER HEAD FOR INTERNAL COMBUSTION ENGINE

Rib configurations for increasing the structural efficiency of a cylinder head, which relates to a peak combustion pressure capability of the cylinder head. In addition to increasing peak combustion pressure, the rib configurations may also improve sealing of the cylinder head and may improve the durability of an associated cylinder head gasket. 120-. (canceled)21. A cylinder head for an internal combustion engine , the cylinder head comprising:a bottom deck;a component bore having an component bore wall extending longitudinally from the bottom deck;a bolt boss extending longitudinally from the bottom deck and positioned at a first radial distance from the component bore;a valve boss positioned a second radial distance from the component bore, the second radial distance being less than the first radial distance;an intake passage wall;an exhaust passage wall; anda first rib connected to one of the intake passage wall and the exhaust passage wall, the first rib extending longitudinally upward from the one of the intake passage wall and the exhaust passage wall and connected to the component bore wall.22. The cylinder head of claim 21 , wherein the first rib is also connected to the valve boss.23. The cylinder head of claim 22 , further comprising a second rib connected to the other of the intake passage wall and the exhaust passage wall claim 22 , the second rib extending longitudinally upward from the other of the intake passage wall and the exhaust passage wall and connected to the component bore wall.24. The cylinder head of claim 23 , further comprising a second valve boss claim 23 , wherein the second rib is also connected to the second valve boss.25. The cylinder head of claim 23 , further comprising a third rib connected to and extending longitudinally upward from the bottom deck and connected to the component bore wall.26. The cylinder head of claim 25 , further comprising a fourth rib connected to and extending longitudinally upward from one of the intake ...

Combustion chamber with ducts for internal combustion engines

An internal combustion engine is provided. The internal combustion engine includes an engine cylinder, a piston, a cylinder head, a combustion chamber, and a fuel injector. The cylinder head has a depression of predefined shape such that an effective width of the depression of cylinder head is greater than a diameter of the engine cylinder. The combustion chamber is defined as an enclosure between the depression of the cylinder head and a crown of the piston. The fuel injector is adapted to supply fuel to the combustion chamber via a number of orifices. In an alternate embodiment, the combustion chamber is provided with a number of ducts adapted to provide a passage to the fuel exiting from the orifices. The ducts extend at a predefined angle with an axis of the engine cylinder to facilitate injection of the fuel towards the depression of the cylinder head within the combustion chamber.

Fuel injector assembly

A fuel injector assembly for a vehicle includes an engine head, a fuel injector, and a preloading insert. The engine head defines a bore wherein the bore includes a head region proximate to the corresponding combustion chamber. The pre-loading insert may be disposed within the bore at the head region. The pre-loading insert may be configured to apply a tensile hoop stress to the head region of the bore causing plastic deformation to the head region while also supporting the fuel injector within the bore. The fuel injector may be configured to dispense fuel into a combustion chamber.

RECIPROCATING INTERNAL COMBUSTION ENGINE, AND METHOD FOR PRODUCING A RECIPROCATING INTERNAL COMBUSTION ENGINE

An assembly, a crankcase, a reciprocating internal combustion engine, and a method for producing a reciprocating internal combustion engine facilitates engine block cleaning after casting, enables current and future residual-soiling standards to be met, and provides a solution to the challenges facing current and future high-performance engines, in particular the load zones head plate and cylinder tube, as well as potential for local improvement to properties in the crankcase in the additional load zones, namely the screw connection connecting the cylinder head and the crankshaft bearing. The assembly includes at least two cylinders and a platelike deck plate connecting them of integral design, wherein the platelike deck plate has a clearance for each cylinder and wherein the assembly can be inserted into or placed upon a crankcase of a reciprocating internal combustion engine, in that at least one coolant guideway is arranged between the cylinders. 187771ab. Reciprocating internal combustion engine comprising a cylinder head () , a crankcase (; ) according to claim and an assembly () ,{'b': 7', '7', '10', '1, 'i': a', 'b, 'wherein the crankcase (; ) comprises a recess () for accommodating the assembly (),'}{'b': 1', '2', '2', '2', '2', '2', '2', '2', '2', '2', '2', '2', '2', '2', '2', '2', '5, 'i': a', 'b', 'a', 'b', 'c', 'a', 'b', 'c', 'd', 'a', 'b', 'c', 'd', 'e', 'f, 'wherein the assembly () comprises at least two cylinders (, ; , , ; , , , ; , , , , , ) and a platelike deck plate () connecting them,'}{'b': '1', 'wherein the assembly () is of integral design,'}{'b': 5', '3', '3', '3', '3', '3', '3', '2', '2', '2', '2', '2', '2, 'i': a', 'b', 'c', 'd', 'e', 'f', 'a', 'b', 'c', 'd', 'e', 'f, 'wherein the platelike deck plate () has a clearance (; ; ; ; ; ) for each cylinder (; ; ; ; ; ) and'}{'b': 1', '7', '7', '7', '7', '7', '7, 'i': a', 'b', 'c', 'a', 'b', 'c, 'wherein the assembly () can be inserted into a crankcase (; ; ) of a reciprocating internal combustion ...

Internal Combustion Engine

An internal combustion engine for a motor vehicle has at least one cylinder, a cylinder head, and a piston which is movably mounted in the cylinder and has a combustion chamber side which delimits a combustion chamber with the cylinder head and the cylinder. The cylinder head has a combustion chamber roof, in which at least two valve seats for at least one inlet valve and at least one outlet valve are provided. The combustion chamber roof has at least one arched cylinder head section which is arranged between the at least two valve seats and points away from the combustion chamber. 1. An internal combustion engine for a motor vehicle , comprising:at least one cylinder;a cylinder head;a piston which is mounted movably in the cylinder and has a combustion chamber side which delimits a combustion chamber with the cylinder head and the cylinder, whereinthe cylinder head has a combustion chamber roof, in which at least two valve seats for at least one inlet valve and at least one outlet valve are provided, andthe combustion chamber roof has at least one domed cylinder head section which is arranged between the at least two valve seats and points away from the combustion chamber.2. The internal combustion engine according to claim 1 , whereinan active region of the combustion chamber roof is of substantially edge-free configuration.3. The internal combustion engine according to claim 1 , whereinthe combustion chamber roof is an exclusively machined combustion chamber roof.4. The internal combustion engine according to claim 1 , whereinthe piston has a depression which is lenticular and is rotationally symmetrical with respect to a piston axis, a diameter of the depression being less than an overall diameter of the piston.5. The internal combustion engine according to claim 4 , whereinat a center point, the depression has a depth of between 0.2 mm and 10 mm.6. The internal combustion engine according to claim 4 , whereinat a center point, the depression has a depth of ...

METHOD FOR PRODUCING A CAST ALUMINUM COMPONENT, AND CYLINDER HEAD FOR A MOTOR VEHICLE, AND PRODUCTION LINE FOR CARRYING OUT A METHOD

A method for producing a cast aluminum component having at least one reinforcing element arranged therein includes producing a core by placing at least one reinforcing element in a first mold and at least partially overmolding the at least one reinforcing element with a foam material. In the alternative, or in addition to, a core is produced by surrounding an inner element composed of a foam material by at least one reinforcing element. The method includes placing the core in a second mold and pouring liquid aluminum into the second mold and overcasting the core such that the liquid aluminum at least partially surrounds the core and the foam material is at least partially removed during the overcasting. 1. A method for producing a cast aluminum component having at least one reinforcing element arranged therein , the method comprising:a) producing a core comprising at least one of placing at least one reinforcing element in a first mold and at least partially overmolding the at least one reinforcing element with a foam material, and surrounding an inner element composed of a foam material by at least one reinforcing element;b) placing the core in a second mold; andc) pouring liquid aluminum into the second mold and overcasting the core such that the liquid aluminum at least partially surrounds the core and the foam material is at least partially removed during the overcasting.2. The method according to claim 1 , wherein the reinforcing element is a tape.3. The method according to claim 1 , wherein the reinforcing element comprises at least one of a metal matrix material and glass fibers.4. The method according to claim 1 , wherein the foam material comprises at least one of polystyrene and polyurethane.5. The method according to claim 1 , wherein the at least one reinforcing element is overmolded with the foam material via injection molding.6. The method according to claim 1 , wherein the core is produced by placing the at least one reinforcing element in the first ...

CYLINDER HEAD FOR ONE INTERNAL COMBUSTION ENGINE

A cylinder head for an internal combustion engine is provided, whereby the cylinder head has a cylinder head gasket region for closing a combustion chamber with a diameter. The cylinder head includes the following: 2. The cylinder head according to claim 1 , wherein the diameter is 145 mm claim 1 , and at least one of the two intake holes has a diameter of 49.5 mm to 53 mm.3. The cylinder head according to claim 1 , wherein at least one outlet hole of the two outlet holes has a diameter smaller than the diameter of the two intake holes claim 1 , and a diameter 48 mm to 50 mm.4. The cylinder head according to claim 1 , wherein the two outlet holes each have a diameter smaller than the diameter of the two intake holes claim 1 , and a diameter of 48 mm to 50 mm.5. The cylinder head according to claim 1 , wherein the spark plug sleeve hole has a diameter smaller than 28 mm claim 1 , and has a diameter greater than 23.5 mm.6. The cylinder head according to claim 1 , wherein the spark plug sleeve hole is arranged substantially in the center of the cylinder head.7. The cylinder head according to claim 1 , wherein the cylinder head has at least one cavity for receiving and/or conducting a cooling medium.8. The cylinder head according to claim 1 , wherein the spark plug sleeve hole for securing the position of the spark plug sleeve has a thread at least in one section.9. The cylinder head according to claim 1 , wherein the spark plug sleeve hole for securing the position of the spark plug sleeve has a cylindrical fit at least in one section.10. The cylinder head according to claim 1 , wherein a center axis of the spark plug sleeve hole is arranged at a distance from a center axis of the cylinder head.11. The cylinder head according to claim 1 , wherein a center axis of the spark plug sleeve hole is arranged parallel to a center axis of the cylinder head.12. An internal combustion engine having at least one cylinder head according to . This disclosure relates to a cylinder ...

ENGINE AND PISTON

Any one or more members of an engine, that is, a piston, a cylinder head and a valve, has a wall face disposed face-to-face to a combustion chamber, and the wall face is coated by a heat-insulation coating film. The heat-insulation coating film includes a heat-insulative layer formed on a surface of the wall face, and an inorganic-system coated-film layer formed on a surface of the heat-insulative layer. The heat-insulative layer includes a resin, and first hollow particles buried inside the resin and exhibiting an average particle diameter being smaller than a thickness of the heat-insulative layer. The inorganic-system coated-film layer includes an inorganic compound. 1. An engine equipped with a cylinder block having a bore; a piston fitted into said bore to be capable of reciprocating therein so as to form a combustion chamber therein; a cylinder head having a valve bore closing said combustion chamber and communicating with said combustion chamber; and a valve opening and closing said valve bore;any one or more members of said piston, said cylinder head and said valve having a wall face disposed face-to-face to said combustion chamber, the wall face coated by a heat-insulation coating film;said heat-insulation coating film comprising: a heat-insulative layer formed on a surface of said wall face; and an inorganic-system coated-film layer formed on a surface of the heat-insulative layer;said heat-insulative layer comprising: a resin; and first hollow particles buried inside the resin and exhibiting an average particle diameter being smaller than a thickness of said heat-insulative layer; andsaid inorganic-system coated-film layer comprising an inorganic compound.2. The engine as set forth in claim 1 , wherein the average particle diameter of said first hollow particles is 500 nm or less.3. The engine as set forth in claim 1 , wherein the thickness of said organic-system coated-film layer is from 10 μm to 300 μm.4. The engine as set forth in claim 1 , wherein ...

Crankcase Ventilation System Geometry Optimization

An internal combustion engine having an oil drain opening connected to an oil drain passage in a cylinder head for simultaneously providing flow of oil to a crankcase and blow-by gases to a crankcase ventilation whereby the geometry of the oil drain opening and oil drain passage are such that the velocity of blow-by gas flow through the oil drain opening is limited. 1. An internal combustion engine comprising:a cylinder block having at least one cylinder therein for housing a reciprocating piston;a crankshaft operably connected to the piston, the crankshaft being located in a crankcase, the crankcase further including an oil sump;a cylinder head attached to the cylinder block and having at least a portion of a crankcase ventilation system attached thereto, the cylinder head having an oil drain opening therein, the oil drain opening connected to an oil drain passage for providing the return of oil to the oil sump and the escape of gases into the crankcase ventilation system;wherein the oil drain opening comprises at least one anterior edge and one lateral edge, the anterior edge having a generally rounded profile.2. The internal combustion engine of wherein the specific velocity of gas flow through the oil drain opening is less than 12000 mm/s when gases flow from the crankcase at or below 27 cfm.3. The internal combustion engine of wherein the specific velocity of gas flow through the oil drain opening is less than 1000 mm/s when gases flow from the crankcase at or below 24 cfm.4. The internal combustion engine of wherein the oil drain passage is connected to the cylinder block.5. The internal combustion engine of wherein a cross-sectional area of the oil drain passage at a location approximately 75 mm from the engine block is at least 2200 mm.6. The internal combustion engine of wherein a cross-sectional area of the oil drain passage at a location approximately 75 mm from the engine block is at least 2600 mm.7. The internal combustion engine of wherein a cross- ...

COMBUSTION CHAMBER STRUCTURE FOR ENGINE

A combustion chamber structure for an engine, wherein the structure includes a piston formed with a downward dented cavity at a central part of an upper surface thereof, a fuel injector provided above the piston and in an extension line of a central axis of the piston, and for injecting fuel toward the cavity of the piston, and ignition plugs provided above the cavity and separated from the fuel injector in radial directions of the piston. A radius of the cavity, a depth of the cavity, and each of positions of the ignition plugs are designed so that a distance by which a mixture gas containing the fuel travels from a fuel injection start timing of the fuel injector to an ignition timing of the ignition plug becomes equal to or longer than a length of a path through which the injected fuel reaches each ignition plug via the cavity. 1. A combustion chamber structure for an engine , the engine injecting fuel in a latter half of a compression stroke and igniting the fuel after a top dead center of the compression stroke within a predetermined engine operating range , the combustion chamber structure comprising:a piston formed with a downward dented cavity at a central part of an upper surface thereof;a fuel injector provided above the piston and in an extension line of a central axis of the piston, and for injecting the fuel toward the cavity of the piston; andat least one ignition plug provided above the cavity of the piston and separated from the fuel injector in radial directions of the piston,wherein a radius of the cavity, a depth of the cavity, and each of positions of the at least one ignition plug are designed to have a fuel spray traveling distance that is equal to or longer than a fuel spray traveling path length, the fuel spray traveling distance being a distance by which mixture gas containing the fuel travels from a fuel injection start timing of the fuel injector to an ignition timing of each ignition plug, the fuel spray traveling path length being a ...

Engine Combustion Chamber Structure, and Inner Wall Structure of Through Channel

Provided is an engine combustion chamber structure. Also provided is an inner wall structure for a through channel, through which exhaust gas or intake gas of the engine passes. An engine combustion engine structure is provided with a heat-insulating member on the inner wall of an engine constituent member which constitutes an engine combustion chamber, the heat-insulating member containing a heat-insulating porous layer formed from ceramics, and a surface dense layer formed on the surface of the heat-insulating porous layer and formed from ceramics. The surface dense layer of the heat-insulating member has an open porosity of 5% or less, and preferably the heat-insulating porous layer has a larger open porosity than the open porosity of the surface dense layer. 1. An engine combustion chamber structure , having a heat-insulating member comprising:a heat-insulating porous layer formed with ceramics on the inner walls of engine components, each constituting an engine combustion chamber; anda dense surface layer formed with ceramics on a surface of said heat-insulating porous layer.2. The engine combustion chamber structure according to claim 1 , wherein an open porosity of said dense surface layer is 5% or less and a porosity of said heat-insulating porous layer is larger than said open porosity of said dense surface layer.3. The engine combustion chamber structure according to claim 1 , wherein a thickness of said dense surface layer is within the range from 1 to 50% of a thickness of said heat-insulating porous layer.4. The engine combustion chamber structure according to claim 1 , wherein a reflection factor of said dense surface layer at a wavelength of 1.5 μm is larger than 0.5.5. The engine combustion chamber structure according to claim 1 , wherein a radiation factor of said dense surface layer at a wavelength of 2.5 μm is larger than 0.5.6. The engine combustion chamber structure according to claim 1 , wherein the thickness of said dense surface layer is 20 μ ...

FUEL INJECTOR HAVING PARTICULATE-BLOCKING PERFORATION ARRAY

An engine head assembly includes a plurality of fuel injectors each positioned within a fuel injector bore in an engine head, and fluidly coupled with a fluid conduit. Each fuel injector includes a valve assembly within a fuel injector case such that an interior fluid space is formed between the fuel injector case and the valve assembly. The fuel injector case includes an elongate body having a particulate-blocking perforation array formed therein, and that is structured to block particulates in fuel entering the fuel injector from the fluid conduit. 1. A fuel injector case comprising:an elongate body defining a longitudinal axis and including a first axial end and a second axial end, and the elongate body further including an inner peripheral surface and an outer peripheral surface each extending between the first axial end and the second axial end;the elongate body further having a nozzle end segment that includes the first axial end, a second end segment that includes the second axial end, and a filtration segment positioned axially between the nozzle end segment and the second end segment; andthe filtration segment having a particulate-blocking perforation array with a circumferential distribution of perforations and an axial distribution of perforations in the elongate body, and forming a fluid flow path from the outer peripheral surface to the inner peripheral surface to fluidly connect an interior fluid space within the elongate body to a fluid conduit formed between the elongate body and an engine head.2. The fuel injector case of further including an annular groove extending around the elongate body at a first location axially between the filtration segment and the nozzle end segment claim 1 , and an annular shoulder extending around the elongate body at a second location axially between the filtration segment and the second end segment.3. The fuel injector case of further including a second annular groove extending around the elongate body at a third ...

PRESSURE SENSOR

A pressure sensor includes: a diaphragm joined to a front side of a housing via a joint portion; a sensor portion; a connection portion connecting the diaphragm to the sensor portion; and a heat receiving portion disposed at the front side of the diaphragm. When: a minimum value of an area of a minimum inclusion region which is a virtual region, which include a cross-section of a portion from the heat receiving portion to the diaphragm and of which an overall length of a contour become minimum on a cross-section perpendicular to the axial line, is defined as a connection area Sn; and an area of a region surrounded by the joint portion on a projection plane perpendicular to the axial line when the diaphragm and the heat receiving portion are projected onto the projection plane is defined as a diaphragm effective area Sd, (Sn/Sd)≤0.25 is satisfied. 1. A pressure sensor comprising:a tubular housing;a diaphragm joined to a front side of the housing via a joint portion, spreading in a direction crossing an axial line of the housing, and configured to bend in accordance with a received pressure;a sensor portion disposed within the housing and having an electrical characteristic which changes in response to the pressure;a connection portion connecting the diaphragm to the sensor portion; anda heat receiving portion disposed at the front side of the diaphragm, connected directly or indirectly to the diaphragm, and configured to receive heat, whereinwhen a minimum value of an area of a minimum inclusion region that is a virtual region, which includes a cross-section of a portion from the heat receiving portion to the diaphragm and of which an overall length of a contour is the smallest, on a cross-section perpendicular to the axial line is defined as a connection area Sn, andan area of a region surrounded by the joint portion on a projection plane perpendicular to the axial line when the diaphragm and the heat receiving portion are projected onto the projection plane is ...

MANUFACTURING METHOD FOR CYLINDER HEAD

A manufacturing method for a cylinder head is described. A masking member is attached to cylinder head material, which followed by a film formation step. The masking member comprises a mask portion to mask the matching surface with the cylinder block, and mask portions to mask each of the openings of the intake ports, the exhaust ports, and the CPS hole. Mask portions are linked directly to other mask portions without any steps. 1. A manufacturing method for a cylinder head comprising:a preparation step for preparing a cylinder head material having in the same plane a matching surface with a cylinder block and a wall constituent surface of an engine combustion chamber, wherein the wall constituent surface has port holes that correspond to an intake port and an exhaust port, and a slant hole for an engine-related part that is different from the port holes and slants from a vertical direction of the matching surface with the cylinder block;an attaching step for attaching the cylinder head material to a masking member that is configured to mask a non-film formation area of the wall constituent surface and the matching surface with the cylinder block;a film formation step for, after the attachment of the masking member, injecting film material particles in a direction opposed to the matching surface with the cylinder block to form a heat shield film; anda detaching step for detaching the masking member from the cylinder head material after the formation of the heat shield film,wherein the masking member comprises:a matching surface mask portion that is configured to mask the matching surface with the cylinder block;a port hole mask portions that are configured to link to the matching surface mask portion directly and to mask each of openings of the port holes; anda slant hole mask portion that is configured to link to any one of the port hole mask portions directly and to mask an opening of the slant hole.2. The manufacturing method for a cylinder head according to ...

MANUFACTURING METHOD FOR CYLINDER HEAD

The masking member comprises a matching surface mask portion to mask the matching surface with the cylinder block, port hole mask portions to mask openings of the intake ports and the exhaust ports, and a between openings mask portion to mask a region which is sandwiched between the openings of two adjacent port holes. The matching surface mask portion is linked directly to the port hole mask portions without any steps, and the between openings mask portion is linked directly to both of the port hole mask portions without a step. 1. A manufacturing method for a cylinder head comprising the steps of:preparing a cylinder head material having in the same plane a matching surface with a cylinder block and a wall surface of an engine combustion chamber, wherein the wall surface has at least three port holes that include an intake port and an exhaust port;attaching the cylinder head material to a masking member that is configured to mask a non-film formation region of the wall surface and the matching surface with the cylinder block;after the attachment of the masking member, injecting film material particles onto the matching surface with the cylinder block to form a heat shield film; anddetaching the masking member from the cylinder head material after the formation of the heat shield film,wherein the masking member comprises:a matching surface mask portion that is configured to mask the matching surface with the cylinder block;port hole mask portions that are configured to link to the matching surface mask portion directly and to mask openings of the port holes; anda between openings mask portion that is configured to mask at least one narrow region which is a sandwiched region between openings of two adjacent port holes and also is the shortest distance region between opening edges of the adjacent port holes, and is configured to link directly to both of the port hole mask portions that mask the openings of the adjacent port holes, respectively.2. The manufacturing ...

Cylinder Head with Sensor Sleeve

A cylinder head of an internal combustion engine may include an opening and a sensor sleeve. The opening may extend through the cylinder head. The sensor sleeve may be shrink fitted in the opening. The sensor sleeve may be configured to receive a sensor. The sensor may be mounted within the sensor sleeve through a mounting mechanism. 1. A cylinder head of an internal combustion engine , the cylinder head comprising:an opening extending through the cylinder head; anda sensor sleeve shrink fitted in the opening.2. The cylinder head of claim 1 , wherein the sensor sleeve is cryogenically shrink fitted in the opening.3. The cylinder head of claim 1 , wherein the sensor sleeve comprises an inner thread.4. The cylinder head of claim 1 , wherein the sensor sleeve comprises a sensor seat.5. The cylinder head of claim 1 , wherein:the opening has an opening diameter and the sensor sleeve has an outer sleeve diameter, the opening diameter and the outer sleeve diameter having the same nominal dimension within a range of 10 mm to 40 mm.6. The cylinder head of claim 1 , wherein the sensor sleeve comprises a high grade steel.7. The cylinder head of claim 3 , further comprising:a sensor comprising an outer thread engaging with the inner thread of the sensor sleeve, the sensor being configured to sense an operating condition of the internal combustion engine.8. The cylinder head of claim 7 , wherein the sensor is configured to sense at least one of a pressure and a temperature.9. An internal combustion engine claim 7 , comprising: an opening extending through the cylinder head; and', 'a sensor sleeve shrink fitted in the opening., 'a cylinder unit, the cylinder unit comprising a cylinder head, wherein the cylinder head comprises10. A method for manufacturing a cylinder head of an internal combustion engine claim 7 , the method comprising:providing an opening extending through the cylinder head,providing a sensor sleeve; andshrink fitting the sensor sleeve into the opening of the ...

VALVE STEM SEAL ASSEMBLY WITH A SYMMETRICAL RETAINER

Provided herein, is a valve stem seal assembly having an elastomeric sealing element, a symmetrical retainer and a valve guide. The retainer has first portion, a second portion, a continuous stop formed between the first portion and the second portion, an inner surface and an outer surface. The valve guide has a top surface in contact with the elastomeric sealing element and a side surface in contact with the inner surface of the second portion of the retainer. The stop of the retainer projects radially inward and the retainer is symmetrical. 1. A valve stem seal assembly , comprising:an elastomeric sealing element having a planar upper surface;a retainer having a first portion, a second portion, at least one continuous stop between the first portion and second portion, an inner surface and an outer surface, said first portion terminating in a top slanted surface and said second portion terminating in a bottom slanted surface, said top slanted surface and said bottom slanted surface slanted in the same direction from the inner surface of the retainer to the outer surface of the retainer, wherein said top slanted surface at said inner surface of the retainer is coplanar with said planar upper surface of said elastomeric sealing element; anda valve guide having a top surface in contact with the elastomeric sealing element and a side surface in contact with the inner surface of the second portion of the retainer, said valve guide having a chamfered portion,wherein the stop projects radially inward and is positioned along the retainer such that the first and second portions of the retainer are symmetrical, wherein said stop has an inner diameter smaller than an inner diameter of said valve guide chamfered portion.2. The valve stem assembly of claim 1 , wherein the stop forms a reduced diameter portion of the retainer.3. The valve stem seal assembly according to claim 1 , wherein the retainer is formed of metal.4. The valve stem seal assembly according to claim 2 , ...

COMPRESSION RELIEF VALVE

An engine includes a cylinder head and a cylinder block connected to the cylinder head at an interface. A compression relief valve is substantially inset in the cylinder head of the engine. The compression relief valve is connected to an engine control module via a wire harness. The compression relief valve includes a body having a bore. Further, the compression relief valve includes a needle inset in the bore. The compression relief valve includes a compression relief valve sensor assembly disposed in at least one of the body or the needle. The compression relief valve sensor assembly is configured to generate a cylinder head temperature signal proportional to a cylinder head temperature at the interface. 1. An engine comprising:a cylinder head;a cylinder block connected to the cylinder head at an interface; and a body having a bore;', 'a needle disposed in the bore; and', 'a compression relief valve sensor assembly disposed in at least one of the body or the needle and configured to generate a cylinder head temperature signal proportional to a cylinder head temperature at the interface., 'a compression relief valve substantially inset in the cylinder head, the compression relief valve comprising2. The engine of further includes a gasket installed in the interface between the cylinder head and the cylinder liner.3. The engine of claim 2 , wherein the gasket includes a plurality of passages claim 2 , the passages are sealed by sealing elements.4. The engine of claim 3 , wherein the passages is at least one of a coolant flow passage.5. The engine of claim 1 , wherein the cylinder head claim 1 , the cylinder block and the gasket includes aligned openings to receive a mechanical fastener.6. The engine of claim 1 , wherein the compression relief valve sensor assembly includes a temperature sensing element.7. The engine of claim 3 , wherein the compression relief valve sensor assembly is configured to sense the cylinder head temperature closest to the sealing elements at ...

FLUID CONTROL SYSTEM AND METHOD OF MAKING AND USING THE SAME

A number of variations may include a product including a fluid control system comprising a bore and at least one bead, wherein the bead is constructed and arranged to control the amount of fluid between a first location and a second location in or on at least one component. 1. A product comprising:a fluid control system comprising at least one bore and at least one bead, wherein the bead is constructed and arranged to control the amount of fluid between a first location and a second location in or on at least one component.2. A product as set forth in wherein said bead comprises a hollow half cylinder.3. A product as set forth in wherein the radius of said bead is greater than a ¼ millimeter.4. A product as set forth in wherein said bead comprises multiple branches.5. A product as set forth in wherein said bead has a smaller radius than the radius of the bore.6. A product as set forth in wherein said bead is tapered along its length7. A product as set forth in wherein said component is an engine head gasket.8. A product as set forth in wherein said bore is drilled into said gasket.9. A product as set forth in wherein said bead is formed on the top surface of said gasket.10. A product as set forth in wherein said gasket comprises multiple layers.11. A method comprising:providing at least one component comprising a bore and a bead;providing fluid flow through the bore and the bead wherein the bead is constructed and arranged to control the amount of fluid between a first location and a second location in or on at least one component.12. A method as set forth in further comprising:providing a second component fluidly connected to the bead;providing fluid flow from the bead to a third location located in or on the second component.13. A method as set forth in wherein said bead comprises a hollow half cylinder.14. A method as set forth in wherein the radius of said bead is greater than a ¼ millimeter.15. A method as set forth in wherein said bead comprises multiple ...

COMBUSTION ENGINE

A combustion engine includes a cylinder head including a controllable engine valve configured to open/close a combustion chamber in the combustion engine, a valve actuator operatively connected with and configured to displace the engine valve, and a closed pressure fluid circuit, wherein the valve actuator is arranged in the closed pressure fluid circuit. The combustion engine includes a cylinder head chamber that is included in the closed pressure fluid circuit and that is delimited by the cylinder head and a cylinder head mantle, by the valve actuator including a pneumatic pressure fluid circuit with an outlet opening that is in fluid communication with the cylinder head chamber, and by the cylinder head chamber including a hydraulic liquid drainage valve, wherein a drainage conduit stretches from the hydraulic liquid drainage valve to a hydraulic liquid vessel of the combustion engine for draining hydraulic 1. A combustion engine comprising{'b': 6', '8', '7', '1, 'a cylinder head () that comprises a controllable engine valve () configured to open/close a combustion chamber () included in the combustion engine (),'}{'b': 10', '8, 'a valve actuator () that is operatively connected to and configured to displace said engine valve (), and'}{'b': 10', '1', '13', '6', '14', '10', '10', '8', '12', '12', '13', '13', '36', '37', '36', '38', '1', '13, 'a closed pressure fluid circuit, wherein said valve actuator () is arranged in said closed pressure fluid circuit, said combustion engine () further comprising a cylinder head chamber () that is included in said closed pressure fluid circuit and that is delimited by said cylinder head () and a cylinder head mantle (), by the valve actuator () comprising a pneumatic pressure fluid circuit configured to operate the valve actuator () to displace the controllable engine valve () and comprising an outlet opening () for pressure fluid, which outlet opening () is in fluid communication with said cylinder head chamber (), and by the ...

INTAKE SYSTEM FOR AN INTERNAL COMBUSTION ENGINE

An engine includes a cylinder head having a first face defining an entrance to an intake port, and an intake manifold having a second face defining an outlet from a runner. The first and second faces mate to fluidly connect the entrance and the outlet, and an area mismatch or offset exists between the entrance and the outlet. A tongue is positioned into the intake port to extend over a floor of the intake port and has an area substantially equal to a difference between the entrance area and the outlet area. The tongue maintains in-charge motion and mixing of intake gases in-cylinder in the engine. 1. An engine comprising:a cylinder head having a first face defining an entrance to an intake port;an intake manifold having a second face defining an outlet from a runner, the first and second faces mating to fluidly connect the entrance and the outlet; anda tongue positioned to extend over a floor of the intake port and having an area substantially equal to a difference between the entrance area and the outlet area.2. The engine of wherein the entrance area is ten to twenty-five percent greater than the outlet area.3. The engine of wherein the area of the tongue at the entrance is equal to ten to twenty percent of the entrance area.4. The engine of wherein the tongue extends into the intake port from the first face to a distal end claim 1 , the tongue sized to cover the floor of the intake port between the face and the distal end.5. The engine of wherein the tongue is shaped to maintain in-charge motion and mixing of intake gases in-cylinder in the engine.6. The engine of wherein the tongue is formed by a projection extending outwardly from the second face of the intake manifold.7. The engine of wherein a roof and side regions of the entrance are line-on-line with a roof and side regions of the outlet.8. The engine of wherein the floor of the entrance is offset from a floor of the outlet.9. The engine of wherein the tongue extends from the second face to a distal end ...

SUPERCHARGED ENGINE DESIGN

The present engine design can comprise one or more three-cylinder modules. Each module can comprise a left-hand combustion cylinder, a compression cylinder and a right-hand combustion cylinder. In an embodiment, the compression cylinder can function as a supercharger providing compressed air to the two combustion cylinders in order to improve performance and efficiency. Each module can comprise a specialized cylinder head comprising an intake air plenum configured to allow pressurized air to flow from the compression cylinder into each of the combustion cylinders. The flow of this pressurized air can be precisely controlled by valves that control airflow into and out of each of the three cylinders. Variable valve timing and computer controls can determine the exact amount of fuel, if any, which will be injected into the combustion cylinders to deliver high fuel economy while delivering an optimal level of power, horsepower and torque. 2. An engine design as recited in wherein the compression cylinder is located between the left-hand combustion cylinder and the right-hand combustion cylinder within the engine block.3. An engine design as recited in wherein at least one left-hand cylinder exhaust valve claim 1 , at least one right-hand cylinder exhaust valve claim 1 , and at least one compression cylinder intake valve are configured to be actuated by a first side camshaft comprising at least one cam for each actuated valve claim 1 , wherein the cams used to actuate the compression cylinder intake valves are dual-lobed cams in which the earn lobes are 180 degrees out of phase.4. (canceled)5. (canceled)6. An engine design as recited in wherein at least one left-hand cylinder intake valve claim 1 , at least one right-hand cylinder intake valve claim 1 , and at least one compression cylinder exhaust valve are configured to be actuated by a second side camshaft comprising at least one cam for each actuated valve claim 1 , wherein the cams used to actuate the compression ...

Cylinder head and engine

A cylinder head includes: a cylinder head body that includes a lower deck, an upper deck defining a first cooling water space together with the lower deck, and valve hole-forming walls; a rocker housing that includes a rocker-side wall formed integrally with the cylinder head body; an expansion wall portion that expands from the cylinder head body and defines a second cooling water space communicating with the first cooling water space and extending up to a position over the upper deck; and an EGR passage-forming portion that is provided in the second cooling water space.

PARABOLIC COMBUSTION ENGINE

An apparatus comprising a cylinder for an internal combustion engine having at least one combustion chamber and a squish area disposed at or around a base of the at least one combustion chamber, wherein the at least one combustion chamber comprises a paraboloidal cavity. 1. An apparatus comprising:a cylinder having at least one combustion chamber and a squish area having a non-zero squish angle disposed at or around a base of the at least one combustion chamber;wherein the at least one combustion chamber comprises a paraboloidal cavity;wherein the cylinder has a squish ratio greater than or equal to 0.5; andwherein the cylinder is adapted to position an electrode of a sparkplug at a focal point of the paraboloidal cavity.2. The apparatus of claim 1 , wherein the cylinder includes a cylinder body and a cylinder head.3. The apparatus of claim 2 , wherein the cylinder body and cylinder head are of a unitary construction.4. The apparatus of claim 2 , wherein the cylinder head comprises the at least one combustion chamber and a sparkplug port.5. The apparatus of claim 4 , wherein the cylinder head further comprises a fuel injection port.6. The apparatus of claim 5 , wherein the fuel injection port is offset from a centerline of the cylinder.7. The apparatus of claim 6 , wherein the sparkplug port is offset from the centerline of the cylinder.8. The apparatus of claim 1 , wherein the cylinder further comprises at least one piston claim 1 , wherein the at least one piston comprises a piston top.9. The apparatus of claim 8 , wherein an axis of symmetry of the paraboloidal cavity coincides with a centerline of the cylinder or a center of the piston top.10. The apparatus of claim 8 , wherein the piston top comprises a volumetrically-enhanced portion that extends into the paraboloidal cavity when the piston is at top dead center.11. An apparatus comprising:a cylinder having at least one combustion chamber and a squish area having a non-zero squish angle disposed at or around a ...

FLUID FLOW VALVE, ESPECIALLY FOR RECIRCULATED EXHAUST GAS

A fluid flow valve that includes a movable closure member and a body that includes a projecting part that receives the closure member. The body is designed to be attached to a support in such a way that the projecting part is introduced into a housing in the support. In addition, the body is designed to allow the valve to be secured to the support in a direction transverse to a longitudinal direction of extension of the projecting part. The invention is suitable for the recirculation of exhaust gases of motor vehicle engines. 1. A fluid flow valve comprising:a movable shutter and a body,the body comprising a protruding part receiving said movable shutter, said body being configured to be mounted on a support such that said protruding part is introduced into a housing of said support, said body also being configured to allow fixing of said valve on said support in a direction transverse to a longitudinal extension direction of said protruding part.2. The valve as claimed in claim 1 , with a radial tightness between said protruding part and said support.3. The valve as claimed in claim 2 , comprising a seal of the O-ring type claim 2 , said protruding part and said seal being configured to achieve said radial tightness.4. The valve as claimed in claim 3 , wherein said protruding part comprises a lateral wall with a groove receiving said seal.5. The valve as claimed in claim 1 , wherein said transverse direction is oriented in a plane substantially perpendicular to said longitudinal extension direction.6. The valve as claimed in claim 1 , wherein said transverse direction is oriented tangentially relative to said protruding part.7. The valve as claimed in claim 1 , also comprising fixing means allowing fixing of said body on said support in said transverse direction.87. The valve as claimed in claimed claim 1 , wherein said fixing means comprise an orifice arranged in said body in said transverse direction.9. The valve as claimed in claim 8 , wherein said protruding ...

COMBUSTION ENGINE AND MANTLE ASSEMBLY THEREFORE

A combustion engine includes, a cylinder head including a controllable first engine valve arranged to selectively open/close a combustion chamber included in the combustion engine, a first valve actuator operatively connected to the first engine valve, which first valve actuator includes at least one inlet opening for pressure fluid and at least one outlet opening for pressure fluid, and a closed pressure fluid circuit, wherein the first valve actuator is arranged in the closed pressure fluid circuit. The combustion engine further includes a cylinder head chamber that forms part of the closed pressure fluid circuit and that is delimited by the cylinder head and at least a first cylinder head mantle, wherein the at least one outlet opening of the first valve actuator is in fluid communication with the cylinder head chamber. A mantle assembly for a cylinder head of a combustion engine is also described. 1. A combustion engine comprising ,{'b': 6', '8', '7', '1, 'a cylinder head () comprising a controllable first engine valve () arranged to selectively open/close a combustion chamber () included in the combustion engine (),'}{'b': 10', '8', '10', '11', '12, 'a first valve actuator () operatively connected to said first engine valve (), which first valve actuator () comprises at least one inlet opening () for pressure fluid and at least one outlet opening () for pressure fluid, and'}{'b': 10', '1', '16', '6', '17', '12', '10', '16, 'a closed pressure fluid circuit, wherein said first valve actuator () is arranged in said closed pressure fluid circuit, wherein the combustion engine () further comprises a cylinder head chamber () that forms part of said closed pressure fluid circuit and that is delimited by said cylinder head () and at least a first cylinder head mantle (), wherein said at least one outlet opening () of the first valve actuator () is in fluid communication with said cylinder head chamber ().'}210. The combustion engine according to claim 1 , wherein said ...

SEALING ASSEMBLY COMPRISING A CYLINDER HEAD, A CYLINDER HEAD GASKET AND A CRANKCASE

The present disclosure relates to an internal combustion engine for a motor vehicle. The internal combustion engine has a cylinder head, a crankcase and a cylinder head gasket. The cylinder head, the cylinder head gasket and the crankcase form a sealing region for sealing at least one combustion chamber. A first recess is arranged within the sealing region and at a distance from the at least one combustion chamber. A first leakage gas passage extends from the first recess to a first surface exposed to the environment of the internal combustion engine or to a ventilation passage of the internal combustion engine. 1. An internal combustion engine for a motor vehicle , comprising:a cylinder head;a crankcase;a cylinder head gasket, which is arranged between the cylinder head and the crankcase, wherein the cylinder head, the cylinder head gasket and the crankcase form a sealing region for sealing at least one combustion chamber of the internal combustion engine;a first recess, which is arranged within the sealing region and at a distance from the at least one combustion chamber; anda first leakage gas passage, which extends from the first recess to a first surface exposed to the environment of the internal combustion engine or to a ventilation passage of the internal combustion engine, wherein the first leakage gas passage is designed as a depression.2. The internal combustion engine according to claim 1 , wherein the cylinder head is a single-cylinder cylinder head or a multi-cylinder cylinder head and the cylinder head gasket is a single-cylinder cylinder head gasket or a multi-cylinder cylinder head gasket.3. The internal combustion engine according to claim 1 , wherein the first recess is a screw hole or a closed casting core hole4. The internal combustion engine according to claim 1 , furthermore comprising:a second recess, which is arranged within the sealing region and at a distance from the at least one combustion chamber, wherein the second recess is a screw ...

DUCTED COMBUSTION SYSTEM

A ducted combustion system for an internal combustion. The ducted combustion system includes a combustion chamber, a fuel injector in fluid communication with the combustion chamber and configured to inject a sequence of at least two fuel charges into a combustion chamber during a combustion cycle and one or more ducts disposed within the combustion chamber and configured to receive at least a part of the fuel charges. 1. A ducted combustion system for an internal combustion engine comprising:a combustion chamber;a fuel injector in fluid communication with the combustion chamber and configured to inject a sequence of at least two fuel charges into the combustion chamber during a combustion cycle; andone or more ducts disposed within the combustion chamber and configured to receive at least a part of the fuel charges.2. The ducted combustion system of claim 1 , wherein the fuel injector has one or more orifices to inject a fuel charge.3. The ducted combustion system of claim 2 , wherein the one or more orifices are configured to inject the fuel charges into the combustion chamber as one or more fuel jets.4. The ducted combustion system of claim 1 , wherein the one or more ducts are disposed proximate to the one or more orifices of the fuel injector.5. The ducted combustion system of claim 1 , wherein the one or more ducts are tubular shaped structures.6. The ducted combustion system of claim 1 , wherein the sequence of at least two fuel charges includes a pilot injection.7. The ducted combustion system of claim 1 , wherein the sequence of at least two fuel charges includes a post injection.8. An engine system comprising:a combustion chamber;a fuel injector in fluid communication with the combustion chamber and configured to inject a sequence of at least two fuel charges into the combustion chamber during a combustion cycle; andone or more ducts disposed within the combustion chamber such that the at least two fuel charges at least partially enters the one of the one ...

INTERNAL COMBUSTION ENGINE

Stable combustion is achieved in an internal combustion engine, in cases where an air stream has occurred in a cylinder. The engine includes a fuel injection valve having a first nozzle hole and a second nozzle hole, and an spark plug disposed at a position through which the swirling flow flows, and which is at the downstream side of the flow of the swirling flow from an extension line of the first nozzle hole and at the upstream side of the flow of the swirling flow from an extension line of the second nozzle hole, for igniting a spray of fuel injected from the fuel injection valve, wherein the first nozzle hole and the second nozzle hole are formed in such a manner that the shortest distance from the extension line of the first nozzle hole to the spark plug becomes longer than the shortest distance from the extension line of the second nozzle hole to the spark plug. 1. An internal combustion engine in which a swirling flow occurs in a cylinder , said engine comprising:a fuel injection valve that has a plurality of nozzle holes including at least a first nozzle hole and a second nozzle hole for injecting fuel into said cylinder; andan spark plug that is disposed at a position through which said swirling flow flows, and which is at the downstream side of the flow of said swirling flow from an extension line of said first nozzle hole and at the upstream side of the flow of said swirling flow from an extension line of said second nozzle hole, said spark plug to ignite a spray of fuel injected from said fuel injection valve;wherein said first nozzle hole and said second nozzle hole are formed in such a manner that a shortest distance from the extension line of said first nozzle hole to said spark plug becomes longer than a shortest distance from the extension line of said second nozzle hole to said spark plug.2. The internal combustion engine as set forth in claim 1 , whereinsaid first nozzle hole and said second nozzle hole are formed in such a manner that the ...

VALVE SEAT INSERT WITH SOFT LANDING INSERT DESIGN WITH CONTOURED RADII

A valve seat insert includes a top convex arcuate blend for improving fluid flow, and a valve seating surface for slowing down valve recession. The valve seating surface includes a radially outer convex arcuate segment defining an outer radius of curvature forming a first wear crown for contacting the valve at an early wear state, a radially inner convex arcuate segment defining an inner radius of curvature forming a second wear crown for contacting the valve at a later wear state, and a linear segment extending between the radially outer convex arcuate segment and the radially inner convex arcuate segment. 1. An engine head assembly for an internal combustion engine comprising:an engine head having a fluid conduit formed therein;a valve;a valve seat insert positioned at least partially within the engine head, and the valve seat insert includingan at least partially annular body, defining a longitudinal axis, and a radial direction that is perpendicular to the longitudinal axis, a first axial end surface disposed proximate to the engine head, and a second axial end surface;a radially inner surface forming a throat, a radially outer peripheral surface, and a valve seating surface disposed axially and radially between the radially inner surface and the second axial end surface; anda top convex arcuate blend extending from the first axial end surface to the radially inner surface;wherein in a plane containing the longitudinal axis and the radial direction, the valve seating surface includes a radially outer convex arcuate segment defining an outer radius of curvature forming a first wear crown for contacting the valve at an early wear state, a radially inner convex arcuate segment defining an inner radius of curvature forming a second wear crown for contacting the valve at a later wear state, and a linear segment extending between the radially outer convex arcuate segment and the radially inner convex arcuate segment.2. The engine head assembly of further comprising a ...

ENGINE AND STRADDLE-TYPE VEHICLE

An engine of a straddle-type vehicle includes a seal between a surrounding wall and a pipe. A cylinder head includes a first surrounding wall portion and a second surrounding wall portion. One end of the pipe is pressed in against the first surrounding wall portion. The second surrounding wall portion is located more distant from an attachment portion than the first surrounding wall portion is, and has an inner diameter larger than that of the first surrounding wall portion. The pipe includes an annular projection. The annular projection projects from the outer periphery of the pipe, and divides a space defined by the outer periphery of the pipe and the inner periphery of the second surrounding wall portion into subspaces arranged in an axial direction of the pipe when the one end of the pipe is pressed in against the first surrounding wall portion. 1. An engine comprising:a cylinder head;a spark plug attached to the cylinder head; anda pipe located around the spark plug; wherein an attachment portion to which the spark plug is attached; and', 'a surrounding wall located around the spark plug and extending in a first direction, the first direction being an axial direction of the pipe;, 'the cylinder head includes a first surrounding wall portion against which one end of the pipe is pressed in; and', 'a second surrounding wall portion located more distant from the attachment portion than the first surrounding wall portion is as measured in the first direction, and having an inner diameter larger than that of the first surrounding wall portion;, 'the surrounding wall includesthe pipe includes an annular projection projecting from an outer periphery of the pipe to divide a space defined by an outer periphery of the pipe and an inner periphery of the second surrounding wall portion into subspaces arranged in the first direction when the one end of the pipe is pressed in against the first surrounding wall portion; anda liquid gasket is included in a first subspace which ...

MANUFACTURING METHOD FOR ENGINE

A cylinder head material of an engine is casted (Step S). Next, the cylinder head material is machined (Step S). Next, a heat shielding film is formed on a ceiling surface of the cylinder head material (Step S). Next, the film thickness of the heat shielding film is measured (Step S). Next, a rank of a piston to be combined with the ceiling surface is selected (Step S). The rank of the piston selected in Step S is a rank according to depth of a cavity. Next, the rank of the piston selected in Step S is stamped on the cylinder head (Step S). 1. A manufacturing method of an engine comprising the steps of:preparing a cylinder head having a surface on which a ceiling surface of a combustion chamber;forming a heat shielding film on the ceiling surface;measuring a volume of the heat shielding film; andselecting out of multiple ranks of pistons one rank to be combined with the ceiling surface, wherein each of the pistons includes a cavity, the multiple ranks are preset in accordance with volume of the cavity,wherein the selecting step is a step to select the one rank of which volume of the cavity corresponds to a divergence amount of the measured volume of the heat shielding film from a design volume.2. The manufacturing method of an engine according to claim 1 ,wherein the manufacturing method further comprising the step of stamping information of the selected one rank on the surface of the cylinder head.3. The manufacturing method of an engine according to claim 1 ,wherein the selecting step is a step to select the one rank of which volume of the cavity minimizes the divergence amount.4. The manufacturing method of an engine according to claim 1 ,wherein the forming step is a step to form a heat shielding film having a porous structure on the ceiling surface.5. The manufacturing method of an engine according to claim 1 ,wherein the cavity is formed in each top land of the pistons as an annular groove surrounding a conical protrusion,the multiple ranks are preset in ...

Heat-Insulating Member and Structure of Combustion Chamber for Engine

There are provided a heat-insulating member which enhances a thermal efficiency of an engine to enhance fuel efficiency, and a structure of a combustion chamber for the engine. A heat-insulating member includes a substrate , an insulating porous layer , and a surface dense layer . The substrate , the insulating porous layer and the surface dense layer are formed of a ceramic material. The surface dense layer has a porosity of 5% or less. Furthermore, the insulating porous layer has a larger porosity than the surface dense layer . The substrate sufficiently has a mechanical strength to exist in a self-supported manner. The heat-insulating member is fixed to a piston by mechanical fixing such as screwing or chemical fixing such as brazing. 1. A heat-insulating member comprising:a substrate formed of a ceramic material;an insulating porous layer formed of a ceramic material on the surface of the substrate; anda surface dense layer formed of a ceramic material on the surface of the insulating porous layer,wherein the surface dense layer has a porosity of 5% or less, andthe insulating porous layer has a larger porosity than the surface dense layer.2. The heat-insulating member according to claim 1 ,wherein the insulating porous layer and the substrate are formed of the ceramic material of a same composition or a similar composition.3. The heat-insulating member according to claim 1 ,wherein the insulating porous layer has pores of sizes of a nano-order.4. The heat-insulating member according to claim 1 ,wherein in the surface dense layer, a reflectance at a wavelength of 1.5 μm is larger than 0.5.5. The heat-insulating member according to claim 1 ,wherein in the surface dense layer, a radiation rate at a wavelength of 2.5 μm is larger than 0.5.6. The heat-insulating member according to claim 1 ,wherein the surface dense layer has a thickness of 20 μm or less.7. The heat-insulating member according to claim 1 ,wherein the insulating porous layer has a heat conductivity of ...

Method for Adjusting Volume of Combustion Chamber of Engine

A method for adjusting the volume of the combustion chamber of an engine with high accuracy is provided. A cylinder head () of an engine includes a recess () constituting part of the combustion chamber of the engine, and a mating surface () for a cylinder block. The method for adjusting the volume of the combustion chamber includes measuring a plurality of portions of the surface of the recess () and a plurality of portions of the mating surface () by using a displacement meter, calculating differences between the respective measurement values of the mating surface (), and the design shape of the mating surface () in a state in which the design shape of the surface of the recess () is fitted with respect to the respective measurement values of the recess (), and deciding the cutting amount of the mating surface () based on the calculated differences and cutting the mating surface () by the decided cutting amount. 1. A method for adjusting a volume of a combustion chamber of an engine , comprising:preparing a cylinder head formed by casting,the cylinder head including a recess constituting part of the combustion chamber of the engine and a mating surface for a cylinder block, andthe mating surface being formed to have a cutting stock with respect to three-dimensional shape data of the cylinder head designed to have a target combustion chamber volume,the adjusting method further comprising:measuring a plurality of portions of a surface of the recess and a plurality of portions of the mating surface by using a displacement meter;calculating differences between respective measurement values of the mating surface, and a design shape of the mating surface based on the three-dimensional shape data in a state in which the design shape of the surface of the recess based on the three-dimensional shape data is fitted with respect to a plurality of measurement values of the recess; anddeciding a cutting amount based on the calculated differences and cutting the mating surface ...

INTERNAL COMBUSTION ENGINE

An internal combustion engine including a cylinder having an inner cylinder wall, a piston having a crown received in the cylinder, and a cylinder head coupled to the cylinder. The cylinder head defines an intake port and an exhaust port. The piston is configured to reciprocate between a top dead center position and a bottom dead center position. Wherein when the piston is in the top dead center position, the inner cylinder wall includes an exposed portion above the crown. A combustion chamber is defined between crown of the piston, the exposed portion of the inner cylinder wall, and an inner surface of the cylinder head. The exposed portion of the inner cylinder wall includes a series of surface features to promote mixing of an air-fuel mixture in the combustion chamber. 1. An internal combustion engine , comprising:a cylinder having an inner cylinder wall;a piston having a crown received in the cylinder, the piston configured to reciprocate between a top dead center position and a bottom dead center position; anda cylinder head coupled to the cylinder defining an intake port and an exhaust port,wherein when the piston is in the top dead center position, the inner cylinder wall includes an exposed portion above the crown,wherein a combustion chamber is defined between the crown of the piston, the exposed portion of the inner cylinder wall, and an inner surface of the cylinder head, andwherein the exposed portion of the inner cylinder wall includes a plurality of surface features to promote mixing of an air-fuel mixture in the combustion chamber.2. The internal combustion engine of claim 1 , wherein the exposed portion of the inner cylinder wall has a height from approximately 1 inch to approximately 1.7 inches.3. The internal combustion engine of claim 1 , wherein the surface features are selected from the group consisting of projections claim 1 , depressions claim 1 , and combinations thereof.4. The internal combustion engine of claim 1 , wherein a plurality of ...

CYLINDER HEAD BOLT BOSS CUTOUTS

A cylinder head [] mountable onto a cylinder block [] of an engine [] is disclosed. The cylinder head [] includes at least one fastener boss [] configured for receiving a fastener [], and the cylinder head [] is securely fastened onto the cylinder block [] of the engine [] by the fastener []. A boss cutout [] is formed on a lower portion of the at least one fastener boss [] that abuts the cylinder block [] such that a contact pressure balance of sealing pressures around the cylinder block [] is evenly distributed. 120120161020120. A cylinder head [ , ] mountable onto a cylinder block [] of an engine [] , the cylinder head [ , ] comprising:{'b': 28', '128', '24', '20', '120', '16', '10', '24, 'at least one fastener boss [, ] configured for receiving a fastener [] wherein the cylinder head [, ] is securely fastened onto the cylinder block [] of the engine [] by the fastener [];'}{'b': 30', '130', '28', '128', '16', '16, 'a boss cutout [, ] formed on a lower portion of the at least one fastener boss [, ] that abuts the cylinder block [] such that a contact pressure balance of sealing pressures around the cylinder block [] is evenly distributed.'}22030363820404220. The cylinder head [] of claim 1 , wherein the boss cutout [] has an inclined surface [] extending from an outermost periphery of a corresponding corner [] of the cylinder head [] toward a center [] of a bottom edge of an adjacent side wall [] of the cylinder head [].320364244284238. The cylinder head [] of claim 2 , wherein the inclined surface [] is configured to generally follow a profile of the side wall [] and circumvent an obstruction [ claim 2 , ] disposed on the side wall [] or the corresponding corner [].4204636302210. The cylinder head [] of claim 2 , wherein a bottom circumference [] of the inclined surface [] of the boss cutout [] substantially follows a contour of a head gasket [] of the engine [].520364520. The cylinder head [] of claim 2 , wherein the inclined surface [] has a substantially ...

FUEL INJECTION DEVICE

A fuel injection device including a valve body having an injection hole-formed part having a plurality of injection holes on the leading end side of the valve body. An injection hole comprises a crossing angle, θ between a central axis of the injection hole-formed part and an injection hole axis, and another injection hole comprises a crossing angle, θ between the central axis and another injection hole axis. θ is larger than θ The injection holes are formed such that a distance between the central axis and an inlet surface center of the injection hole is longer than a distance between the central axis and another inlet surface center of the another injection hole. A straight line beyond an outlet surface in the injection hole axis does not intersect with another straight line beyond another outlet surface in the another injection hole axis. 1. A fuel injection device comprising: a valve body; and an injection hole-formed part in which a plurality of injection holes to inject fuel is formed on a leading end side of the valve body ,{'b': 1', '2', '1, 'wherein in the injection hole-formed part, a first injection hole in which a crossing angle between a central axis of the injection hole-formed part and a first injection hole axis becomes θ, and a second injection hole in which a crossing angle between the central axis of the injection hole-formed part and a second injection hole axis becomes θ larger than θ are formed,'}the first injection hole and the second injection hole are formed in such a manner that a first shortest distance between the central axis of the injection hole-formed part and a first inlet surface center of the first injection hole becomes longer than a second shortest distance between the central axis of the injection hole-formed part and a second inlet surface center of the second injection hole, anda first straight line beyond a first outlet surface in the first injection hole axis of the first injection hole is formed in such a manner as not to ...

INTAKE DEVICE OF ENGINE

An intake device of an engine having cylinders is provided. The intake device includes a cylinder head formed with two intake ports per cylinder, and a forced induction system. One of the two intake ports is designed to have a smaller passage cross-sectional area at a throat portion thereof than that of the other intake port, and to cause a strength of a tumble flow strength of intake air formed within a combustion chamber to be stronger when a flow of the intake air into the combustion chamber is assumed to be caused only from the one of the two intake ports, than only from the other intake port. A tumble ratio of the intake air flow within the combustion chamber is a predetermined value or greater when the intake air is forcibly induced and flows into the combustion chamber from the two intake ports. 1. An intake device of an engine having one or more cylinders , the intake device comprising:a cylinder head formed with two intake ports per cylinder for flowing intake air into a combustion chamber of the cylinder; anda forced induction system for forcibly inducing the intake air,wherein the two intake ports have respective throat portions, and in each cylinder, one of the two intake ports is designed to have a smaller passage cross-sectional area at its throat portion than a passage cross-sectional area of the throat portion of the other intake port, and to cause a strength of a tumble flow of intake air formed within the combustion chamber when a flow of the intake air into the combustion chamber is assumed to be only from the one of the two intake ports, to be stronger than a strength of a tumble flow of intake air formed within the combustion chamber when the flow of the intake air into the combustion chamber is assumed to be only from the other intake port, andwherein a tumble ratio of a flow of the intake air within the combustion chamber is a predetermined value or greater when the intake air is forcibly induced by the forced induction system and flows into ...

INTERNAL COMBUSTION ENGINE COMPRISING A CYLINDER HEAD

The invention relates to an internal combustion engine comprising a cylinder head () with a fire deck () on the combustion chamber side, at least one injector sleeve () detachably connected to the cylinder head () for mounting an injection unit, wherein the injector sleeve () is screwed to the fire deck () on a fire-deck-side first end () via a first screw connection (), and wherein the injector sleeve () comprises in the region of the first end () at least one radially protruding first bearing area () with a first contact face () facing the fire deck (), which contact face rests on a first counter surface () formed by the cylinder head (). In order to increase the rigidity of the cylinder head () at low material cost, it is provided that the injector sleeve () preferably in the region of a second end () facing away from the first end () comprises at least one radially protruding second bearing area () with a second contact face () facing the fire deck (), which contact face rests on a second counter surface () formed by the cylinder head (). 1. An internal combustion engine , comprising a cylinder head with a fire deck on the combustion chamber side , at least one injector sleeve detachably connected to the cylinder head for accommodating an injection device , wherein the injector sleeve is screwed to the fire deck on a first end on the fire deck side via a first screw connection , and wherein the injector sleeve comprises in the region of the first end at least one radially protruding first bearing area with a first contact face facing the fire deck , which contact face rests on a first counter surface formed by the cylinder head , wherein the injector sleeve comprises at least one radially protruding second bearing area with a second contact face facing the fire deck , which contact face rests on a second counter surface formed by the cylinder head.2. The internal combustion engine according to claim 1 , wherein in the relaxed state the distance between the first ...

THERMALLY COMPENSATED BORE GUIDE SYSTEMS AND METHODS

A thermally compensated bore guide system for a shaft, the shaft configured to translate along a longitudinal axis, is provided. The thermally compensated bore guide system includes an inner bore defined within a component. The inner bore is configured to circumferentially surround at least a portion of the shaft, wherein the inner bore is non-linear in response to the thermally compensated bore guide system being at a first thermal condition and wherein the inner bore is configured to be linear and to define a bore axis substantially aligned with the longitudinal axis in response to the thermally compensated bore guide system being at a second thermal condition. 1. A thermally compensated bore guide system for a shaft , the shaft configured to translate along a longitudinal axis , said thermally compensated bore guide system comprising:an inner bore defined within a component, said inner bore configured to circumferentially surround at least a portion of the shaft, wherein:said inner bore is non-linear in response to said thermally compensated bore guide system being at a first thermal condition, andsaid inner bore is configured to be linear and to define a bore axis substantially aligned with the longitudinal axis in response to said thermally compensated bore guide system being at a second thermal condition.2. The thermally compensated bore guide system according to claim 1 , wherein said thermally compensated bore guide system further comprises:a sidewall of the component, said sidewall defining an outer bore within the component; anda sleeve positioned within said outer bore, said sleeve at least partially defines said inner bore.3. The thermally compensated bore guide system according to claim 2 , wherein said outer bore is non-linear at the first thermal condition.4. The thermally compensated bore guide system according to claim 2 , wherein said outer bore is linear at the first thermal condition.5. The thermally compensated bore guide system according to ...

CYLINDER HEAD FOR ENGINE

A cylinder head for an engine may include an adiabatic coating layer having a polyamideimide resin and an aerogel dispersed in the polyamideimide resin with thermal conductivity of 0.60 W/m or less formed on a surface of a combustion chamber. 1. A cylinder head for an engine , comprising:an adiabatic coating layer including a polyamideimide resin and an aerogel dispersed in the polyamideimide resin and having thermal conductivity of 0.60 W/m or less formed on a surface of a combustion chamber.2. The cylinder head for an engine of claim 1 , wherein:{'sup': '3', 'the adiabatic coating layer has a thermal capacity of 1250 KJ/mK or less.'}3. The cylinder head for an engine of claim 1 , wherein:the polyamideimide resin exists in a content of 2 wt % or less in the aerogel.4. The cylinder head for an engine of claim 1 , wherein:the polyamideimide resin does not exist at a depth corresponding to 5% or more of a longest diameter from a surface of the aerogel.5. The cylinder head for an engine of claim 1 , wherein:each aerogel has porosity of 92% to 99% while being dispersed in the polyamideimide resin.6. The cylinder head for an engine of claim 1 , wherein:the adiabatic coating layer has a thickness of 50 μm to 500 μm.7. The cylinder head for an engine of claim 1 , wherein:the adiabatic coating layer includes 5 to 50 parts by weight of the aerogel based on 100 parts by weight of the polyamideimide resin.8. The cylinder head for an engine of claim 1 , wherein the adiabatic coating layer including the polyamideimide resin is dispersed in a high boiling point organic solvent or aqueous solvent and the aerogel is dispersed in a low boiling point organic solvent as the adiabatic coating layer.9. The cylinder head for an engine of claim 8 , wherein the high boiling point solvent includes anisole claim 8 , toluene claim 8 , xylene claim 8 , methyl ethyl ketone claim 8 , methyl isobutyl ketone claim 8 , ethyleneglycol monomethylether claim 8 , ethyleneglycol monoethylether claim 8 , ...

CYLINDER BLOCK

A cylinder block defines a cylinder, in which a piston is reciprocated. The cylinder includes an upper bore, a center bore, and a lower bore arranged in order from proximity to a cylinder head in the axial direction of the cylinder. The inner diameter of the center bore is greater than the inner diameters of the upper bore and the lower bore. The cylinder block defines an upper recess that serves as an upper water jacket surrounding the upper bore and a lower recess that serves as a lower water jacket surrounding the lower bore. The upper recess and the lower recess are spaced apart from each other in the axial direction of the cylinder so as to sandwich a spacer. 1. A cylinder block comprising:a cylinder, in which a piston is reciprocated; anda water jacket, through which coolant flows, wherein an upper bore,', 'a center bore that is connected to the upper bore and has an inner diameter that is greater than an inner diameter of the upper bore, and', 'a lower bore that is connected to the center bore and has an inner diameter that is less than the inner diameter of the center bore,, 'the cylinder includes'}wherein the upper bore, the center bore, and the lower bore are arranged in order in an axial direction of the cylinder from proximity to a cylinder head fixed to the cylinder block, an upper water jacket that surrounds the upper bore at an outer side in a radial direction of the cylinder, and', 'a lower water jacket that surrounds the lower bore at the outer side in the radial direction of the cylinder, and, 'the water jacket includes'}the upper water jacket and the lower water jacket are spaced apart from each other in the axial direction of the cylinder so as to sandwich a non-formation area in which the water jacket is not formed.2. The cylinder block according to claim 1 , whereinwhen viewed in a cross section including a central axis of the cylinder, a cross-sectional passage area of the upper water jacket is greater than a cross-sectional passage area of ...

ENGINE CYLINDER HEAD INTAKE PORT CONFIGURATION

A cylinder head for an internal combustion engine is disclosed having an intake port geometry configured to reduce fuel puddling and improve fuel atomization. The cylinder head includes a housing having a recess defining a top portion of a combustion chamber. The cylinder head further includes intake and exhaust ports defined by channels extending from the top portion of the combustion chamber to an outer end of the housing. An intake valve is positioned within the cylinder head to control communication of the intake port with the combustion chamber, and an exhaust valve is positioned within the cylinder head to control communication of the exhaust port with the combustion chamber. The intake port further includes a cross-section having a modified D-shape with a single 90 degree corner. The modified D-shape cross-section extends substantially a length of the intake port. 1. A cylinder head for an internal combustion engine comprising:a housing having a recess defining a top portion of a combustion chamber;an intake port defined by a first channel extending from the top portion of the combustion chamber to an outer end of the housing;an exhaust port defined by a second channel extending from the top portion of the combustion chamber to an outer end of the housing;an intake valve positioned to control communication of the intake port with the combustion chamber; andan exhaust valve positioned to control communication of the exhaust port with the combustion chamber; andwherein the intake port has a cross-section comprising a modified D-shape comprising a single 90 degree corner, the modified D-shape cross-section extending substantially a length of the intake port.2. The cylinder head of wherein the intake port comprises first and second flat surfaces joined to create the 90 degree corner.3. The cylinder head of wherein the intake port comprises a third flat surface joined to the second flat surface to create a chamfered corner thereby providing the modified D-shaped ...

CYLINDER HEADS FOR AIRCRAFT ENGINES

An aircraft cylinder head with low pressure loss inlet passageways and exhaust passageways. In an embodiment, the combustion air inlet passageway includes a multi-lobed configuration that reduces pressure drop through the inlet passageway. In an embodiment, the hot exhaust gas passageway provides a shaped design that increases flow velocity yet reduces pressure drop. In an embodiment, an improved intake valve is provided, shaped to reduce creation of turbulence as inlet air flows past the inlet valve. In an embodiment, an improved exhaust valve is provided, shaped to reduce pressure losses as exhaust gases exit the cylinder. 1. A cylinder head for aircraft engines , said cylinder head configured for attachment to a cylinder body having a cylinder bore of diameter defined by a sidewall , and an outer end , the cylinder bore configured to operably confine a piston of selected stroke distance , and with the piston thereby defines a swept displacement volume , said cylinder head comprisinga head portion, said head portion having therein an inlet passageway defined by inlet passageway sidewalls, said inlet passageway extending between an upstream inlet and an intake valve seat, and defining an inlet passageway volume, and wherein the inlet passageway sidewalls are defined by a profile according to the Cartesian coordinate values of X, Y and Z set forth in Table 3, wherein the X, Y and Z coordinate values are dimensional values representing a distance from an origin point of an internal coordinate system for the inlet passageway.2. A cylinder head as defined in claim 1 , wherein the Cartesian coordinate values of X claim 1 , Y and Z set forth in Table 3 are scalable as a function of the same constant or number claim 1 , so as to provide for dimensions of a cylinder head of a selected size having an inlet passageway of a selected inlet passageway volume.3. The cylinder head as set forth in claim 1 , wherein the X claim 1 , Y and Z coordinate values are dimensional values ...

INTERNAL COMBUSTION ENGINE

An internal combustion engine has a cylinder block and a cylinder head fixed to each other with a plurality of bolts, and a piston fitted in a cylinder bore of the cylinder block so as to be able to reciprocate. A portion of the cylinder bore having a minimum diameter in a travel range of a skirt across which the skirt travels as the piston reciprocates is located within a range facing the skirt when the piston is at a bottom dead center. A clearance between the skirt and the minimum-diameter portion has a minimum value of a clearance between the skirt and a wall surface of the cylinder bore. 1. An internal combustion engine comprising:a cylinder block having at least one cylinder bore, the at least one cylinder bore extending along an axis of the cylinder bore;a cylinder head fixed to a first end of the cylinder block with a plurality of bolts; anda piston configured to reciprocate along the axis, the piston being housed in the cylinder bore, the piston including a skirt capable of sliding along a wall surface of the cylinder bore, whereinthe cylinder bore includes a first portion within a first range,the first portion is a portion at which a diameter of the cylinder bore is minimum in a second range of the cylinder bore,the second range is a range across which the skirt travels as the piston reciprocates,the first range is a range in an axial direction of the cylinder bore facing the skirt when the piston is at a bottom dead center, anda clearance in a radial direction of the cylinder bore between the skirt and the first portion when the piston is located at the bottom dead center has a minimum value of a clearance in the radial direction between the skirt and the wall surface of the cylinder bore in the second range.2. The internal combustion engine according to claim 1 , whereinthe cylinder block includes the first end and a second end,the skirt includes a third end and a fourth end,the third end is an end of the skirt located closer to the first end of the ...

COMBUSTION CHAMBER STRUCTURE OF SPARK-IGNITION INTERNAL COMBUSTION ENGINE

A combustion chamber structure for a spark-ignition internal combustion engine includes a combustion chamber, an ignition plug, and a guide portion. The combustion chamber is configured to produce tumble flow that swirls in an axial direction of a cylinder. The ignition plug is disposed in a central portion of an upper wall of the combustion chamber. The guide portion protrudes from the upper wall of the combustion chamber, and is configured to guide airflow passing through the central portion of the combustion chamber in an intake-exhaust direction of the combustion chamber while dispersing the airflow around the guide portion. 1. A combustion chamber structure for a spark-ignition internal combustion engine , the combustion chamber structure comprising:a combustion chamber configured to produce tumble flow that swirls in an axial direction of a cylinder;an ignition plug disposed in a central portion of an upper wall of the combustion chamber; anda guide portion that protrudes from the upper wall of the combustion chamber so as to surround the ignition plug, the guide portion extending to a larger extent at the intake port side as compared with at the exhaust port side, the guide portion being configured to guide airflow passing through the central portion of the combustion chamber in an intake-exhaust direction of the combustion chamber while dispersing the airflow around the guide portion.2. (canceled)3. The combustion chamber structure according to claim 1 , wherein:the upper wall of the combustion chamber has two intake ports and two exhaust ports; andthe guide portion has an outer periphery that starts at a point between the two intake ports, the outer periphery extends along outer edges of valve seats of the respective intake ports, the outer periphery bends at points between the intake ports and the exhaust ports, to be directed to between the two exhaust ports, and the outer periphery ends at a point between the two exhaust ports. 1. Field of the ...

Engine Assembly With Passageway For Reducing Oil Leakage

In one aspect, the present invention provides an engine assembly, which includes at least one cylinder head including a first surface, and at least one camshaft cover including a second surface, the first and second surfaces together defining a passageway positioned next to a seal for reducing oil leakage. The passageway may be defined by a recess on at least one of the first and second surfaces.

CYLINDER HEAD AND ENGINE BLOCK CONFIGURATION

A single-cylinder cylinder head is disclosed. The cylinder head may have a cylinder head body having a gas system side, a pushrod side opposing the gas system side, a circular cylinder closing face with a central injector opening, a pair of inlet openings, and a pair of outlet openings. The cylinder head may have a central injector recess extending through the cylinder head body to the central injector opening. Further, the cylinder head may have a gas inlet channel system and a gas outlet channel system. The cylinder head may also have a pushrod passage extending through the cylinder head body at the pushrod side. In addition, the cylinder head may have a plurality of cylinder mounting holes extending through the cylinder head body in an outer circumferential region of the single-cylinder cylinder head. The cylinder mounting holes may be non-equidistantly arranged around the central injector recess.

Cylinder head structure for internal combustion engine and internal combustion engine

A cam carrier includes a pair of longitudinal frames provided parallel to an axial direction of a camshaft and a plurality of transversal frames connected to the pair of longitudinal frames to be spaced from each other and supporting the camshaft via cam bearings. A flexible structure suppressing amounts of change in a relative position and an inclined angle of the cam bearings relative to the camshaft due to a thermal expansion is provided on at least one of wall surfaces of the longitudinal frames, the wall surfaces being located between adjacent transversal frames.

METHOD AND DEVICE FOR MOUNTING PISTON

A guide rod, which has a diameter expandable tip end portion and restricts the oscillation of a connecting rod and a piston, is inserted into a cylinder bore via an opening adjacent to a crank chamber of the cylinder bore, and the piston is inserted into the cylinder bore via a cylinder head mounting side opening with the connecting rod positioned at a leading end. The diameter of the tip end portion of the guide rod is increased in a hole of a semi-circular arc-shaped end portion positioned at tip end of the connecting rod in the insertion direction, and thus the connecting rod is engaged with the guide rod. The guide rod moves and the connecting rod is pulled into the cylinder bore until the semi-circular arc-shaped end portion of the connecting rod sits on a crankpin of a crankshaft. 1. A piston assembly method by which a piston assembled with a connecting rod is inserted into a cylinder bore of a cylinder block to which a crankshaft is assembled , and a connecting rod cap is tightened to the connecting rod such that the piston is connected to the crankshaft , including:a step of inserting a guide rod, which has a diameter expandable tip end portion and restricts an oscillation of the connecting rod and the piston, into the cylinder bore via an opening adjacent to a crank chamber of the cylinder bore;a step of inserting the piston via a cylinder head mounting side opening of the cylinder bore with the connecting rod positioned at a leading end;a step of engaging the connecting rod with the guide rod by increasing a diameter of the tip end portion of the guide rod in a hole of a semi-circular arc-shaped end portion which is positioned at a tip end of the connecting rod in an insertion direction;a step of pulling the connecting rod into the cylinder bore by moving the guide rod until the semi-circular arc-shaped end portion of the connecting rod sits on a crankpin of the crankshaft;a step of moving the guide rod away from the cylinder bore; anda step of tightening ...

PROTECTION OF VEHICLE ENGINE INTAKE COMPONENTS

Vehicle engine systems and inserts for such systems are presented. The insert can be positioned between an air intake system and a cylinder bank of an engine. In some arrangements, the insert can be positioned such that a first abutment surface directly contacts portions of a surge tank and a second abutment surface directly contacts portions of a cylinder head cover. The insert can be constructed, positioned, and/or oriented to absorb or transfer forces acting upon the engine system during impacts. For instance, the insert can be arranged such that it extends between the surge tank and the cylinder head cover along an axis that is substantially parallel to a predetermined force direction of a predetermined impact force. 1. A vehicle engine system , comprising:a cylinder bank including a cylinder head and a cylinder head cover;an air intake system including a lower intake manifold and a surge tank, the lower intake manifold being operatively connected to the cylinder head, and the surge tank being operatively connected to the lower intake manifold; andan insert positioned between the cylinder bank and the air intake system such that the insert directly contacts at least a portion of the air intake system and at least a portion of the cylinder bank.2. The system of claim 1 , wherein the insert includes a first abutment surface claim 1 , and wherein the first abutment surface directly contacts at least a portion of the surge tank.3. The system of claim 2 , wherein the first abutment surface includes a first surface and a second surface claim 2 , wherein the first surface directly contacts at least a portion of the surge tank claim 2 , and wherein the second surface directly contacts at least a portion of a top surface of an attachment flange of the surge tank.4. The system of claim 3 , wherein the insert includes a second abutment surface claim 3 , and wherein the second abutment surface directly contacts at least a portion of the cylinder head cover.5. The system of ...

Cylinder Head

A cylinder head for an internal combustion engine includes a cylinder head body forming an injector bore, a fuel gallery having segments extending collinearly, two fuel supply passages in fluid communication with the fuel gallery, and two cross-drill passages terminating at a respective cross-drill opening. The two cross-drill passages extend generally parallel to the segments of the fuel gallery and are disposed at an offset distance therefrom such that the cross-drill openings are disposed closer to the right or left side of the cylinder head body. 1. A cylinder head for an internal combustion engine , comprising:a cylinder head body having a flame deck surface, the flame deck surface configured to engage a cylinder case of the internal combustion engine, the cylinder head body having a right side, a left side, a front side and a rear side with respect to an orientation of the cylinder head body when assembled onto the internal combustion engine;at least one injector bore formed in the cylinder head body, the at least one injector bore being adapted to sealably accept therein a fuel injector;a fuel gallery formed in the cylinder head body, the fuel gallery including at least two segments extending collinearly with respect to one another and disposed in fluid communication on either side of the at least one injector bore such that each of the at least two segments fluidly connects the injector bore with a respective end opening disposed at the front or the rear side of the cylinder head;two fuel supply passages formed in the cylinder head body and being in fluid communication with the fuel gallery, each of the two fuel supply passages extending perpendicularly relative to the segments of the fuel gallery such that each of the two fuel supply passages fluidly connects the fuel gallery with a respective fuel supply opening, wherein the two fuel supply openings are disposed on the right or left side of the cylinder head body; andtwo cross-drill passages formed in the ...