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10-02-2004 дата публикации

Уплотнение штока клапана

Номер: RU0000035855U1
Автор: Душкин Н.А., Зорин В.Г., Зубикова Н.Г., Конышев Д.В.
Принадлежит: Открытое акционерное общество "Электромашиностроительный завод "ВЭЛКОНТ"

Уплотнение штока клапана, содержащее эластичный корпус с контактным участком, выполненным с впадинами и выступами, образующим единую внутреннюю поверхность с рабочим участком корпуса посредством цилиндрического участка, и армирующее кольцо с буртиком, отличающееся тем, что диаметр цилиндрического участка не превышает диаметр впадин контактного участка. (19) RU (11) 35 855 (13) U1 (51) МПК F16D 3/84 (2000.01) F01L 3/08 (2000.01) F16L 35/00 (2000.01) РОССИЙСКОЕ АГЕНТСТВО ПО ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ (21), (22) Заявка: 2003128184/20 , 22.09.2003 (24) Дата начала отсчета срока действия патента: 22.09.2003 (46) Опубликовано: 10.02.2004 (73) Патентообладатель(и): Открытое акционерное общество "Электромашиностроительный завод "ВЭЛКОНТ" U 1 3 5 8 5 5 R U Ñòðàíèöà: 1 U 1 (57) Формула полезной модели Уплотнение штока клапана, содержащее эластичный корпус с контактным участком, выполненным с впадинами и выступами, образующим единую внутреннюю поверхность с рабочим участком корпуса посредством цилиндрического участка, и армирующее кольцо с буртиком, отличающееся тем, что диаметр цилиндрического участка не превышает диаметр впадин контактного участка. 3 5 8 5 5 (54) Уплотнение штока клапана R U Адрес для переписки: 613040, Кировская обл., г. Кирово-Чепецк, ул. Ленина, 1"б", ОАО "ВЭЛКОНТ" (72) Автор(ы): Зорин В.Г., Душкин Н.А., Конышев Д.В., Зубикова Н.Г. RU 35 855 U1 RU 35 855 U1 RU 35 855 U1 RU 35 855 U1 RU 35 855 U1

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Номер записи: 1
27-12-2006 дата публикации

ГОЛОВКА ЦИЛИНДРА ДВИГАТЕЛЯ ВНУТРЕННЕГО СГОРАНИЯ

Номер: RU0000059736U1
Автор: Глумов Дмитрий Федорович, Глумов Федор Камильевич, Сачихин Андрей Викторович
Принадлежит: Глумов Дмитрий Федорович, Глумов Федор Камильевич, Сачихин Андрей Викторович

Головка цилиндра двигателя внутреннего сгорания, включающая, по крайней мере, один стакан и корпус с, по крайней мере, одним сквозным отверстием, в котором установлен указанный стакан, внутри стакана установлен шток с возможностью его возвратно-поступательного движения вдоль оси стакана и расположен газообменный канал, на одном конце штока установлен клапан, а на другом - средства обеспечения возвратно-поступательного движения штока, при этом газообменный канал имеет клапанную полость, которая выполнена с обеспечением ее газодинамического сообщения с камерой сгорания цилиндра двигателя и в которой расположен упомянутый клапан, отличающаяся тем, что корпус снабжен резьбовыми элементами для его герметичного и разъемного крепления к блоку цилиндров в области камеры сгорания соответствующего цилиндра. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 59 736 (13) U1 (51) МПК F02F 1/24 (2006.01) F01L 3/08 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ, ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ (21), (22) Заявка: 2005112436/06 , 26.04.2005 (24) Дата начала отсчета срока действия патента: 26.04.2005 (45) Опубликовано: 27.12.2006 (73) Патентообладатель(и): Глумов Федор Камильевич (RU), Сачихин Андрей Викторович (RU), Глумов Дмитрий Федорович (RU) U 1 5 9 7 3 6 R U Ñòðàíèöà: 1 U 1 Формула полезной модели Головка цилиндра двигателя внутреннего сгорания, включающая, по крайней мере, один стакан и корпус с, по крайней мере, одним сквозным отверстием, в котором установлен указанный стакан, внутри стакана установлен шток с возможностью его возвратно-поступательного движения вдоль оси стакана и расположен газообменный канал, на одном конце штока установлен клапан, а на другом - средства обеспечения возвратно-поступательного движения штока, при этом газообменный канал имеет клапанную полость, которая выполнена с обеспечением ее газодинамического сообщения с камерой сгорания цилиндра двигателя и в которой расположен упомянутый клапан, отличающаяся тем, что ...

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Номер записи: 2
10-03-2007 дата публикации

УСТРОЙСТВО ДЛЯ ИЗМЕНЕНИЯ УГЛА ПОВОРОТА РАСПРЕДЕЛИТЕЛЬНОГО ВАЛА ОТНОСИТЕЛЬНО КОЛЕНЧАТОГО ВАЛА ДВС

Номер: RU0000061798U1
Автор: Аншаков Алексей Иванович
Принадлежит: Аншаков Алексей Иванович

1. Устройство для изменения угла поворота распределительного вала относительно коленчатого вала ДВС, содержащее натяжную звездочку, шкиф распределительного вала, гидропривод и регулирующие клапана, отличающееся тем, что в нем дополнительно установлены по обе стороны цепи или ремня газораспределительного механизма рычаги со звездочками или зубчатыми колесами, связанные между собой раздвижной тягой, а также возвратная пружина для возвращения механизма в исходное положение. 2. Устройство по п.1, отличающееся тем, что в нем шкив распределительного вала выполнен цельной конструкции и жестко закреплен на распределительном валу. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 61 798 (13) U1 (51) МПК F01L 31/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ, ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ (21), (22) Заявка: 2006138933/22 , 03.11.2006 (24) Дата начала отсчета срока действия патента: 03.11.2006 (45) Опубликовано: 10.03.2007 (72) Автор(ы): Аншаков Алексей Иванович (RU) (73) Патентообладатель(и): Аншаков Алексей Иванович (RU) U 1 6 1 7 9 8 R U Ñòðàíèöà: 1 U 1 Формула полезной модели 1. Устройство для изменения угла поворота распределительного вала относительно коленчатого вала ДВС, содержащее натяжную звездочку, шкиф распределительного вала, гидропривод и регулирующие клапана, отличающееся тем, что в нем дополнительно установлены по обе стороны цепи или ремня газораспределительного механизма рычаги со звездочками или зубчатыми колесами, связанные между собой раздвижной тягой, а также возвратная пружина для возвращения механизма в исходное положение. 2. Устройство по п.1, отличающееся тем, что в нем шкив распределительного вала выполнен цельной конструкции и жестко закреплен на распределительном валу. 6 1 7 9 8 (54) УСТРОЙСТВО ДЛЯ ИЗМЕНЕНИЯ УГЛА ПОВОРОТА РАСПРЕДЕЛИТЕЛЬНОГО ВАЛА ОТНОСИТЕЛЬНО КОЛЕНЧАТОГО ВАЛА ДВС R U Адрес для переписки: 414000, г.Астрахань, ул. Трусова, 14, Научно-методический консультационный Центр по проблемам ...

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Номер записи: 3
20-11-2009 дата публикации

ТАРЕЛКА ПРУЖИНЫ КЛАПАНА ДВИГАТЕЛЯ ВНУТРЕННЕГО СГОРАНИЯ

Номер: RU0000088736U1
Автор: Шукаев Алексей Викторович
Принадлежит: ОТКРЫТОЕ АКЦИОНЕРНОЕ ОБЩЕСТВО "ЗАВОЛЖСКИЙ МОТОРНЫЙ ЗАВОД"

Тарелка пружины клапана двигателя внутреннего сгорания, выполненная в виде кольцевой шайбы с плоскостью под опору и конической внутренней поверхностью, соединяемой со стержнем газораспределительного клапана при помощи сухарей клапана, отличающаяся тем, что кольцевая шайба геометрически выполнена W-образной формы, таким образом, что переход от опорных поверхностей под пружину клапана к конической внутренней поверхности образован в виде трапециидальной выемки. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 88 736 (13) U1 (51) МПК F01L 3/10 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ, ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ (21), (22) Заявка: 2009129033/22, 27.07.2009 (24) Дата начала отсчета срока действия патента: 27.07.2009 (45) Опубликовано: 20.11.2009 (73) Патентообладатель(и): ОТКРЫТОЕ АКЦИОНЕРНОЕ ОБЩЕСТВО "ЗАВОЛЖСКИЙ МОТОРНЫЙ ЗАВОД" (RU) U 1 8 8 7 3 6 R U Ñòðàíèöà: 1 ru CL U 1 Формула полезной модели Тарелка пружины клапана двигателя внутреннего сгорания, выполненная в виде кольцевой шайбы с плоскостью под опору и конической внутренней поверхностью, соединяемой со стержнем газораспределительного клапана при помощи сухарей клапана, отличающаяся тем, что кольцевая шайба геометрически выполнена Wобразной формы, таким образом, что переход от опорных поверхностей под пружину клапана к конической внутренней поверхности образован в виде трапециидальной выемки. 8 8 7 3 6 (54) ТАРЕЛКА ПРУЖИНЫ КЛАПАНА ДВИГАТЕЛЯ ВНУТРЕННЕГО СГОРАНИЯ R U Адрес для переписки: 606522, Нижегородская обл., г. Заволжье, ул. Советская, 1А, ОАО "ЗАВОЛЖСКИЙ МОТОРНЫЙ ЗАВОД", Технический департамент, Группа по патентной и изобретательской работе (72) Автор(ы): Шукаев Алексей Викторович (RU) U 1 U 1 8 8 7 3 6 8 8 7 3 6 R U R U Ñòðàíèöà: 2 RU 5 10 15 20 25 30 35 40 45 50 88 736 U1 Полезная модель относится к области двигателестроения, а именно к конструкциям тарелок пружины клапанов механизма газораспределения двигателя внутреннего сгорания. Известна конструкция тарелки ...

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Номер записи: 4
27-04-2014 дата публикации

УСТРОЙСТВО СО СКОЛЬЗЯЩИМИ КУЛАЧКАМИ ДЛЯ ПОПЕРЕМЕННОГО ПРИВЕДЕНИЯ В ДЕЙСТВИЕ КЛАПАНОВ ДЛЯ ГАЗООБМЕНА В ДВИГАТЕЛЕ ВНУТРЕННЕГО СГОРАНИЯ

Номер: RU0000140044U1
Автор: ИКИНГЕР Франк, КАППЛЕР Штеффен Маттиас
Принадлежит: ДР. ИНГ. Х.Ц. Ф. ПОРШЕ АКЦИЕНГЕЗЕЛЛЬШАФТ

1. Устройство со скользящими кулачками для попеременного приведения в действие клапанов для газообмена в двигателе внутреннего сгорания, содержащее распределительный вал (6), который содержит области (10) зацепления c внешним зубчатым венцом (12), при этом области (10) зацепления входят в зацепление соответственно с внутренним зубчатым венцом (14) держателя (16) кулачков, отличающееся тем, что отношение радиуса R2 основной окружности держателя (16) кулачков к радиусу R1 окружности вершин зубчатого венца (12) распределительного вала (6) составляет R2/R1<1,55. 2. Устройство со скользящими кулачками по п.1, отличающееся тем, что отношение R2/R1 находится в диапазоне от 1,2 до 1,55. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 140 044 U1 (51) МПК F01L 1/34 (2006.01) F01L 31/24 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ (21)(22) Заявка: ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ 2013144068/06, 01.10.2013 (24) Дата начала отсчета срока действия патента: 01.10.2013 (72) Автор(ы): КАППЛЕР Штеффен Маттиас (DE), ИКИНГЕР Франк (DE) 11.10.2012 DE 102012109690.2 (45) Опубликовано: 27.04.2014 Бюл. № 12 1 4 0 0 4 4 R U Формула полезной модели 1. Устройство со скользящими кулачками для попеременного приведения в действие клапанов для газообмена в двигателе внутреннего сгорания, содержащее распределительный вал (6), который содержит области (10) зацепления c внешним зубчатым венцом (12), при этом области (10) зацепления входят в зацепление соответственно с внутренним зубчатым венцом (14) держателя (16) кулачков, отличающееся тем, что отношение радиуса R2 основной окружности держателя (16) кулачков к радиусу R1 окружности вершин зубчатого венца (12) распределительного вала (6) составляет R2/R1<1,55. 2. Устройство со скользящими кулачками по п.1, отличающееся тем, что отношение R2/R1 находится в диапазоне от 1,2 до 1,55. Стр.: 1 U 1 U 1 (54) УСТРОЙСТВО СО СКОЛЬЗЯЩИМИ КУЛАЧКАМИ ДЛЯ ПОПЕРЕМЕННОГО ПРИВЕДЕНИЯ В ДЕЙСТВИЕ КЛАПАНОВ ДЛЯ ГАЗООБМЕНА В ДВИГАТЕЛЕ ВНУТРЕННЕГО СГОРАНИЯ 1 ...

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Номер записи: 5
27-09-2014 дата публикации

ВСТАВКА СЕДЛА КЛАПАНА (ВАРИАНТЫ) И КОНСТРУКЦИЯ СЕДЛА КЛАПАНА

Номер: RU0000145980U1
Автор: ДеРААД Скотт Майкл, ЧЕРН Джим, ЧИЭН Минхой, ЧЭНЬ Джек
Принадлежит: ФОРД ГЛОУБАЛ ТЕКНОЛОДЖИЗ, ЭлЭлСи

1. Вставка седла клапана, содержащая: поверхность седла клапана; круговую контактную поверхность, выполненную в форме для контакта с головкой блока цилиндров, расположенную радиально снаружи и по меньшей мере частично аксиально смещенную от поверхности седла клапана; и разрыв радиально между поверхностью седла клапана и головкой блока цилиндров и по меньшей мере частично аксиально выровненный с поверхностью седла клапана. 2. Вставка седла клапана по п.1, в которой разрыв является зазором. 3. Вставка седла клапана по п.2, выполненная с возможностью деформации при контакте поверхности седла клапана с клапаном для по меньшей мере частичного закрытия зазора. 4. Вставка седла клапана по п.2, в которой зазор смежен с внутренней поверхностью расточенного отверстия в головке блока цилиндров. 5. Вставка седла клапана по п.2, в которой зазор расположен на расстоянии от внутренней поверхности расточенного отверстия в головке блока цилиндров, при этом разрыв является кольцевым зазором с клиновидным поперечным сечением. 6. Вставка седла клапана, содержащая: поверхность седла клапана, включающую в себя по меньшей мере три поверхности, расположенные под углом относительно друг друга, одну, перпендикулярную отверстию гнезда клапана, и остальные, одна включает в себя разрыв, расположенный под углом наклонно к ней, и расположенные под углом на противоположных сторонах друг относительно друга. 7. Вставка седла клапана по п.6, в которой разрыв продолжается непрерывно по всей окружности вставки. 8. Вставка седла клапана, содержащая: внешнюю поверхность, имеющую, по существу, цилиндрический участок, выполненный с возможностью посадки в и контакта с расточенным отверстием внутри головки блока цилиндров, и участок в форме усеченного конуса, выполненный с возможностью расположения на расстоянии от расточенного отверстия. 9. Вставка седла клапана по п.8, дополнительно содержащая центральное отверстие через вставку и поверхность седла клапана, образованную в центральном отверстии, по существу ...

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Номер записи: 6
10-02-2015 дата публикации

ТАРЕЛКА КЛАПАННОЙ ПРУЖИНЫ И КЛАПАННЫЙ МЕХАНИЗМ (ВАРИАНТЫ)

Номер: RU0000150275U1
Автор: ДеРААД Скотт Майкл, ЧЕРН Джим, ЧИЭН Минхой, ЧЭНЬ Чун Хси Джек
Принадлежит: ФОРД ГЛОУБАЛ ТЕКНОЛОДЖИЗ, ЭлЭлСи

1. Тарелка клапанной пружины, содержащая: поверхность сопряжения; эластомерный элемент, прикрепленный к поверхности сопряжения; и грузик поверх эластомерного элемента. 2. Тарелка клапанной пружины по п.1, в которой поверхность сопряжения является, по существу, кольцевой поверхностью, при этом эластомерный элемент является эластомерным кольцом поверх, по существу, кольцевой поверхности, а грузик является металлическим кольцом поверх эластомерного кольца. 3. Тарелка клапанной пружины по п.2, в которой металлическое кольцо частично обжимает эластомерное кольцо. 4. Тарелка клапанной пружины по п.1, имеющая осевую длину, причем поверхность сопряжения имеет длину сопряжения приблизительно в половину осевой длины. 5. Тарелка клапанной пружины по п.1, дополнительно содержащая кольцевой фланец, первую часть кольцевого корпуса, расширяющуюся от фланца и имеющую первый диаметр, и вторую часть кольцевого корпуса, расширяющуюся от первой части кольцевого корпуса, причем вторая часть кольцевого корпуса имеет второй диаметр, меньший чем первый диаметр, а поверхность сопряжения является наружной кольцевой поверхностью второй части кольцевого корпуса; при этом эластомерный элемент является эластомерным кольцом вокруг поверхности сопряжения; и грузик является круговым кольцом, по меньшей мере частично обжимающим эластомерное кольцо поверх поверхности сопряжения. 6. Тарелка клапанной пружины по п.5, дополнительно содержащая кольцевой зазор между первой частью кольцевого корпуса и грузиком. 7. Клапанный механизм для двигателя, содержащий: шток клапана, выполненный с возможностью возвратно-поступательного движения для открывания и закрывания отверстия в камере сгорания двигателя; эластомерный элемент, соединенный со штоком клапана; грузик, соединенный с эластомерным элементом и выполненный с возможностью перемещения относительно штока клапана; и тарелку клапанной пружины, прикрепленную к штоку клапана. 8. Клапанный механизм по п.7, в котором эластомерный элемент является круговым ...

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Номер записи: 7
10-01-2017 дата публикации

Седло клапана

Номер: RU0000167624U1
Автор: Бортников Андрей Дмитриевич, Климов Денис Александрович, Низовцев Владимир Евгеньевич, Финкельберг Лев Аронович
Принадлежит: Российская Федерация, от имени которой выступает Министерство промышленности и торговли Российской Федерации (Минпромторг России)

Полезная модель относится к области двигателестроения, а именно к седлу клапана, и может быть использована преимущественно в механизме газораспределения поршневых двигателей внутреннего сгорания, а также в запорных устройствах трубопроводных систем. Технический результат заключается в исключении деформации седла и его прогорание под действием высоких температур в связи с равномерностью охлаждения периферии седла и повышением его термической прочности. Сущность полезной модели заключается в том, что седло клапана представляет собой тело вращения, установленное в газовом канале и выполненное из композиционного материала, выполненного из металлокерамоматричного композиционного материала на основе карбида кремния при следующем соотношении масс. % компонентов: Полезная модель позволяет решить проблему повышения надежности седла клапана механизма газораспределения в условиях повышенных температур. 1 ил. 1 таб. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 167 624 U1 (51) МПК F01L 3/02 (2006.01) F16K 1/42 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ (21)(22) Заявка: 2016123998, 17.06.2016 (24) Дата начала отсчета срока действия патента: 17.06.2016 Дата регистрации: (73) Патентообладатель(и): Российская Федерация, от имени которой выступает Министерство промышленности и торговли Российской Федерации (Минпромторг России) (RU) Приоритет(ы): (22) Дата подачи заявки: 17.06.2016 (45) Опубликовано: 10.01.2017 Бюл. № 1 U 1 1 6 7 6 2 4 R U Стр.: 1 20070101964 10.05.2007 A1. US 20100147247 17.06.2010 A1. выполненного из металлокерамоматричного композиционного материала на основе карбида кремния при следующем соотношении масс. % компонентов: U 1 (54) Седло клапана (57) Реферат: Полезная модель относится к области двигателестроения, а именно к седлу клапана, и может быть использована преимущественно в механизме газораспределения поршневых двигателей внутреннего сгорания, а также в - углерод (С) запорных устройствах трубопроводных ...

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Номер записи: 8
15-08-2017 дата публикации

Клапан газораспределительного механизма

Номер: RU0000173180U1
Автор: Бортников Андрей Дмитриевич, Климов Денис Александрович, Низовцев Владимир Евгеньевич
Принадлежит: Федеральное государственное унитарное предприятие "Центральный институт авиационного моторостроения им. П.И. Баранова"

Полезная модель относится к области машиностроения, в частности к клапанам газораспределительного механизма и может быть использована в двигателях внутреннего сгорания (ДВС). Клапан обеспечивает повышение износостойкости за счет повышения твердости и прочности материала рабочей поверхности клапана, что позволяет решить задачу расширения арсенала технических средств, а именно создание клапана газораспределительного механизма, обладающего аналогичной износостойкостью с применением современных материалов. Сущность изобретения состоит в том, что на рабочую поверхность тарелки, имеющей выпуклую дугообразную рабочую поверхность, предназначенную для взаимодействия с седлом, нанесен слой силицированного графита трехфазной структуры при следующем соотношении компонентов мас. %: свободный кремний (Si) от 5,0 до 15,0; свободный углерод (С) от 5,0 до 50,0; вторичный карбид кремния (SiC) - остальное. 1 ил., 1 табл. Ц 173180 ко РОССИЙСКАЯ ФЕДЕРАЦИЯ ВУ” 173 180°° 44 ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ИЗВЕЩЕНИЯ К ПАТЕНТУ НА ПОЛЕЗНУЮ МОДЕЛЬ ММ9К Досрочное прекращение действия патента из-за неуплаты в установленный срок пошлины за поддержание патента в силе Дата прекращения действия патента: 10.12.2018 Дата внесения записи в Государственный реестр: 16.09.2019 Дата публикации и номер бюллетеня: 16.09.2019 Бюл. №26 Стр.: 1 па ОЗ Ь ЕП

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Номер записи: 9
17-03-2022 дата публикации

Направляющая втулка клапана двигателя внутреннего сгорания

Номер: RU0000209667U1
Автор: Лысинов Сергей Борисович
Принадлежит: Лысинов Сергей Борисович

Полезная модель относится к области машиностроения и может быть использована в двигателях внутреннего сгорания стационарных и передвижных установок. Технический результат достигается тем, что в направляющей втулке клапана двигателя внутреннего сгорания, содержащей в нижней части расширительную полость, выполненную на внутренней поверхности отверстия втулки, причем на внутренней поверхности отверстия в зоне между расширительный полостью и верхним торцем направляющей втулки выполнена канавка трапециевидной формы, сопряженная с радиальным отверстием подачи масла от общей маслосистемы двигателя, а диаметрально противоположно отверстию подачи масла на внешней поверхности направляющей втулки в осевом направлении от сквозного радиального отверстия выполнен канал для отвода масла в надклапанную полость двигателя; расширительная полость выполнена в виде кольца прямоугольной формы; направляющая втулка клапана двигателя внутреннего сгорания выполнена из чугуна. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 209 667 U1 (51) МПК F01L 3/08 (2006.01) F01L 3/18 (2006.01) F01M 9/10 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ (52) СПК F01L 3/08 (2022.01); F01L 3/18 (2022.01); F01M 9/10 (2022.01) (21)(22) Заявка: 2021130575, 19.10.2021 (24) Дата начала отсчета срока действия патента: (73) Патентообладатель(и): Лысинов Сергей Борисович (RU) Дата регистрации: 17.03.2022 Приоритет(ы): (22) Дата подачи заявки: 19.10.2021 (45) Опубликовано: 17.03.2022 Бюл. № 8 2 0 9 6 6 7 R U (54) Направляющая втулка клапана двигателя внутреннего сгорания (57) Реферат: Полезная модель относится к области трапециевидной формы, сопряженная с машиностроения и может быть использована в радиальным отверстием подачи масла от общей двигателях внутреннего сгорания стационарных маслосистемы двигателя, а диаметрально и передвижных установок. Технический результат противоположно отверстию подачи масла на достигается тем, что в направляющей втулке внешней поверхности ...

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Номер записи: 10
29-03-2012 дата публикации

Valve lifter for internal combustion engine

Номер: US20120073534A1
Автор: Noriomi Hosaka, Seiji Tsuruta, Tomoya Tanaka
Принадлежит: HITACHI AUTOMOTIVE SYSTEMS LTD

A valve lifter for an internal combustion engine includes a skirt portion formed in a tubular shape; and a crown portion formed integrally with an axially one end side of the skirt portion. The crown portion includes a crown surface configured to slide in contact with an outer circumferential surface of a cam. An axis of the crown portion is eccentric from a center of the cam in a width direction of the cam. The crown surface is formed in a spherical protruding shape to have its uppermost portion at a center of the crown surface. A protruding amount of the spherical protruding shape is set to range from 11 μm to 50 μm.

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Номер записи: 11
31-05-2012 дата публикации

Valve spring retainer for an internal combustion engine and a method of manufacturing the same

Номер: US20120132841A1
Автор: Takayuki Aoki, Takeshi Sassa
Принадлежит: Fuji Oozx Inc

Oxide film formed on a spring-retaining flange by heat treatment gets unlikely to peel off, thereby improving wear resistance of a contact surface of the spring-retaining flange with a valve spring. The oxide film 15 of the part of the spring-retaining flange 3 with the valve spring 7 is at least partially removed to make thickness of the oxide film to 0.00 to 0.02 μm.

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Номер записи: 12
08-11-2012 дата публикации

Spark ignition four-stroke cycle engine

Номер: US20120279471A1
Автор: Yasuhito Yaoita
Принадлежит: Individual

A second exhaust poppet valve 9 is provided in a portion of a combustion chamber expanded out of a main cylinder 1 . A valve cover 7 reciprocates within a sub-cylinder 4 and covers a bottom surface of the second exhaust poppet valve 9 . A first exhaust valve 10 and an intake poppet valve 11 are provided so as to face an upper surface of a piston 2 . After the second exhaust poppet valve 9 is opened and hot high-pressure burned gas starts to flow away, the first exhaust poppet valve 10 is opened. As a result, the temperature of the first exhaust poppet valve 10 is reduced and the compression ratio can be increased. Then, a work amount of the piston is increased. The increased work amount compensates an amount of cooling loss due to increasing a surface area of the combustion chamber.

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Номер записи: 13
17-01-2013 дата публикации

Valve cooling device of internal combustion engine

Номер: US20130014712A1
Автор: Kengo Ishimitsu
Принадлежит: Honda Motor Co Ltd

The present invention provides a valve cooling device of an internal combustion engine in which engine oil is circulated in a valve that faces a combustion chamber, the valve includes: a valve umbrella portion and a valve stem an inside of the valve stem is formed with: an oil introduction channel and an oil lead-out channel a jet portion that includes a jet oil passage coaxially disposed with the oil introduction channel is provided in the extended direction of the valve stem, and the engine oil is injected from an orifice provided on a tip portion of the jet oil passage to an inner portion of the oil introduction channel.

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Номер записи: 14
17-01-2013 дата публикации

Eccentricity tolerant valve stem seal assembly

Номер: US20130015625A1
Автор: Alexander S. Williamson, Robert W. Lehmann, Timothy A. Hegemier
Принадлежит: Individual

An eccentricity tolerant valve stem seal assembly includes an elastomeric seal having an upper metal retainer extending down and within an upper seal portion which has an inwardly directed sealing lip for contacting a valve stem. There are also a flexible middle and a lower seal portions. The lower seal portion is connected to a lower metal seal retainer that is disposed up to a lower edge of the middle seal portion. The flexible middle seal portion allows the upper seal portion to flex from an eccentric valve stem without losing the sealing function of the sealing lip. In cooperation with the above described structure, a separate cover may be in a tight tolerance fit with the lower seal retainer over top of the eccentricity tolerant valve stem seal, in order to limit axial displacement of the upper portion of the seal due to high manifold pressure.

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Номер записи: 15
04-04-2013 дата публикации

VALVE STEM SEAL

Номер: US20130082203A1
Автор: Kurth Juergen, Netzer Juergen
Принадлежит: AKTIEBOLAGET SKF

A valve stem seal () seals a valve stem () that is reciprocally movable in an axial direction. The valve stem seal includes a base body () that is connectable with a valve stem guide (). A first seal lip () is resiliently positioned relative to the base body via an elastic connection () and seals the valve stem relative to an oil chamber (). A second seal lip () is spaced in the axial direction () from the first seal lip and seals the valve stem relative to a gas chamber. The second seal lip is also resiliently positioned relative to the base body via the elastic connection. 1. A valve stem seal for sealing a valve stem that is movable in an axial direction , the valve stem seal comprising:a base body configured to be connected to a valve stem guide that receives and guides the valve stem,a first seal lip configured to seal the valve stem relative to an oil chamber,a second seal lip spaced in the axial direction from the first seal lip and configured to seal the valve stem relative to a gas chamber, andan elastic connection resiliently connecting the first and second seal lips to the base body.2. The valve stem seal according to claim 1 , wherein the elastic connection enables movement of the first and second seal lips in a radial direction that is perpendicular to the axial direction.3. The valve stem seal according to claim 2 , wherein the base body and the first and second seal lips are all integrally made as one piece from the same seal material claim 2 , andwherein the elastic connection is formed from the same seal material and is configured as a connecting bridge that connects the first and second seal lips with the base body.4. The valve stem seal according to claim 3 , wherein the second seal lip is disposed on an arm extending away from the elastic connection in the axial direction.5. The valve stem seal according to claim 4 , wherein the base body includes at least one third seal lip configured to sealingly contact the valve stem guide.6. The valve stem ...

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Номер записи: 16
27-06-2013 дата публикации

Valve Assembly and Method for High Temperature Engines

Номер: US20130160726A1
Автор: Zajac John
Принадлежит:

Valve assembly and method in which a valve member is connected to an elongated lever arm for controlling communication between two chambers in an engine. The valve assembly is disposed at least partially within one of the chambers, and the valve member is moved between open and closed by an actuator connected to the lever arm. In some disclosed embodiments, a pilot valve is opened to equalize pressure on both sides of the valve member prior to moving the valve member toward the open position. In others, where a piston in an expansion cylinder is driven by hot, expanding gases from a separate combustion chamber or heat exchanger, the exhaust valve is closed before the piston has completed its exhaust stroke, and pressure is allowed to build up in the expansion cylinder to a level corresponding to the pressure in the combustion chamber before the valve member is moved toward the open position. 1. A valve assembly for controlling high temperature gases , comprising a valve body having an internal chamber with inlet and outlet ports through which the high temperature gasses flow , a valve seat surrounding one of the ports , a pivotally mounted lever arm fabricated of material having low thermal conductivity extending into the chamber , a valve member connected to the lever arm within the chamber for movement between open and closed positions relative to the valve seat , and an actuator connected to the lever arm outside the valve body , away from the high temperature gases , for moving the valve member between the open and closed positions.2. The valve assembly of wherein the valve chamber and ports are surrounded by thermally insulative material that significantly reduces heat loss from the high temperature gasses to the valve body.3. The valve assembly of wherein the lever arm is mounted to the valve body and connected to the valve member in a manner that permits the valve member to pivot about mutually perpendicular axes into proper alignment with the valve seat as ...

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Номер записи: 17
08-08-2013 дата публикации

Hybrid valve stem seal retainer assembly

Номер: US20130200574A1
Автор: Alexander S. Williamson, Robert W. Lehmann, Timothy A. Hegemier
Принадлежит: Individual

A valve stem seal assembly has a metal retainer, an elastomeric seal, and a metal valve guide. The metal retainer and the elastomeric seal are attached to each other, and the elastomeric seal is in sealable contact with the metal valve guide, while the metal retainer is in metal-to-metal gripping contact with the metal valve guide. A stop may be formed in the metal retainer that cooperates with a shoulder formed in the metal valve guide in order to prevent over-installation of the assembly of the elastomeric seal with attached metal retainer, when this assembly is installed over the metal valve guide.

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Номер записи: 18
29-08-2013 дата публикации

VALVE SYSTEM FOR CONTROLLING THE CHARGE EXCHANGE

Номер: US20130220263A1
Автор: Lehrkamp Arvid, Puck Alexander, Vogelsang Matthias
Принадлежит: MAHLE International GmbH

A valve system for controlling the charge exchange in an internal combustion engine may include a valve seat ring and a valve having a valve seat configured to form a sealing system with the valve seat ring, wherein the valve seat may be nitrocarburised. 1. A valve system for controlling the charge exchange in an internal combustion engine , comprising: a valve seat ring and a valve having a valve seat configured to form a sealing system with the valve seat ring , wherein the valve seat is nitrocarburised.2. The valve system according to claim 1 , wherein the valve of the valve system is not straightened.3. The valve system according to claim 1 , wherein apart from the valve seat claim 1 , the entire valve body is nitrocarburised.4. The valve system according to claim 1 , wherein a nitrocarburised surface layer is formed on the valve seat claim 1 , the nitrocarburised surface layer being produced by a nitrocarburising method in a salt bath.5. The valve system according to claim 1 , wherein the valve includes a Cr—Mn—Si-alloyed austenitic valve steel claim 1 , and the nitrocarburised valve seat includes a 3 μm thick compound layer of the including at least 10-90% by weight of Fe claim 1 , 10-30% by weight of N claim 1 , 2.5-10% by weight of Cr and 0.5-10% by weight of Ni claim 1 , and further wherein a >15 μm thick diffusion layer is formed below the compound layer.6. The valve system according to claim 5 , wherein the valve includes is a Cr—Si-alloyed martensitic valve steel claim 5 , and the nitrocarburised valve seat includes approximately a 3 μm thick compound layer including at least 10-90% by weight of Fe claim 5 , 10-30% by weight of N claim 5 , 2.5-10% by weight of Cr and 0.5-10% by weight of Ni claim 5 , and wherein approximately a >15 μm thick diffusion layer is formed below the compound layer.7. The valve system according to claim 4 , wherein the nitrocarburised surface layer has a hardness of approximately 400 to 1200 HV.8. The valve system according to ...

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Номер записи: 19
03-10-2013 дата публикации

SINTERED ALLOY FOR VALVE SEAT AND MANUFACTURING METHOD OF EXHAUST VALVE SEAT USING THE SAME

Номер: US20130259733A1
Автор: Kim Gyuhwan, Kim Ki Bum, Lee Philgi, Park Jae Suk, Shin Chang-Jin
Принадлежит:

A sintered alloy for a valve seat may be manufactured using a method including: mixing MnS with an alloy powder for a valve seat including C at 0.8-1.2 wt %, Ni at 2.0-4.5 wt %, Cr at 3.0-5.0 wt %, Mo at 16.0-20.0 wt %, Co at 9.0-13.0 wt %, V at 0.05-0.15 wt %, S at 0.2-0.8 wt %, Fe, and additional inevitable impurities; making a first shape by forming the mixed materials; pre-sintering the first formed shape; making a secondary shape by re-pressing the first pre-sintered shape; main-sintering the secondary shape; and tempering the main-sintered secondary shape. 1. A sintered alloy for valve seat , comprising:MnS is added to an alloy that comprises C at 0.8-1.2 wt %, Ni at 2.0-4.5 wt %, Cr at 3.0-5.0 wt %, Mo at 16.0-20.0 wt %, Co at 9.0-13.0 wt %, V at 0.05-0.15 wt %, S at 0.2-0.8 wt %, Fe, and additional inevitable impurities.2. The sintered alloy for valve seat of claim 1 , whereinan amount of MnS of 0.2-2.5 parts by weight with respect to 100 parts by weight of the sintered alloy is added.3. The sintered alloy for valve seat of claim 2 , whereinthe size of MnS particles is smaller than 12 μm.4. The sintered alloy for valve seat of claim 3 , whereinthe MnS comprises Mn at 60-65 wt % and S at 35-40 wt %.5. A manufacturing method of valve seat claim 3 , the method comprising:mixing MnS with an alloy powder for a valve seat comprising C at 0.8-1.2 wt %, Ni at 2.0-4.5 wt %, Cr at 3.0-5.0 wt %, Mo at 16.0-20.0 wt %, Co at 9.0-13.0 wt %, V at 0.05-0.15 wt %, S at 0.2-0.8 wt %, Fe, and additional inevitable impurities;making a first shape by forming the mixed materials;pre-sintering the first formed shape;making a secondary shape by re-pressing the first pre-sintered shape;main-sintering the secondary shape; andtempering the main-sintered secondary shape.6. The method of manufacturing a valve seat of claim 5 , whereinthe amount of MnS is from 0.2 to 2.5 parts by weight with respect to 100 parts by weight of the alloy powder.7. The manufacturing method of valve seat of ...

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Номер записи: 20
17-10-2013 дата публикации

Combustion chamber inserts and associated methods of use and manufacture

Номер: US20130269666A1
Автор: Roy Edward McAlister
Принадлежит: McAlister Technologies LLC

Combustion chamber inserts and associated methods of use and manufacture are disclosed herein. In some embodiments, a combustion chamber assembly comprises a cylinder having a cylinder wall at least partially defining a combustion chamber, an intake valve, an exhaust valve, and a piston. The intake valve has an intake valve surface exposed to the combustion chamber, the exhaust valve has an exhaust valve surface exposed to the combustion chamber, and the piston has a piston surface exposed to the combustion chamber. At least one of the cylinder wall, the intake valve surface, the exhaust valve surface, and/or the piston surface includes an insulative portion composed of a synthetic matrix characterization of crystals that is configured to retain heat in the combustion chamber that is generated from a combustion event in the combustion chamber.

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Номер записи: 21
07-11-2013 дата публикации

Internal Combustion Engine Having Valve Lifters With Misalignment Limiting End Caps

Номер: US20130291812A1
Автор: Sathishkumar Raman, Satish Remala
Принадлежит: Caterpillar Inc

An internal combustion engine includes an engine housing defining a cylinder, and a first and a second gas exchange valve for the cylinder, positioned within the engine housing. The engine further includes a valve actuating mechanism having a first and a second valve lifter reciprocating within adjacent lifter bores to actuate the first and second gas exchange valves. Each of the first and second valve lifters includes an end cap having a misalignment limiting projection, limiting rotation of the valve lifter in response to dynamic perturbation.

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Номер записи: 22
07-11-2013 дата публикации

VALVE SEAT MADE OF IRON-BASED SINTERED ALLOY

Номер: US20130291822A1
Автор: HENMI Hiroji, Shikanai Syuuichi, Takahashi Rintarou
Принадлежит: Kabushiki Kaisha Riken

A valve seat of an iron-based sintered alloy having high wear resistance in a wide temperature range, which can be used in direct injection engines with improved fuel efficiency, low emission and high power, is obtained by limiting the amount of a solid lubricant dispersed in the matrix of the valve seat of an iron-based sintered alloy, and dispersing at least two types of hard particles having different hardnesses in the matrix, thereby providing high strength and self-lubrication, as well as improved wear resistance under no lubrication in a wide temperature range. 1. A valve seat of an iron-based sintered alloy , in which at least two types of hard particles having different hardnesses , and 0.2-0.8% by mass of a solid lubricant are dispersed.2. The valve seat of an iron-based sintered alloy according to claim 1 , wherein at least two types of said hard particles having different hardnesses comprise 2-8% by mass of first hard particles having an average particle size of 50-150 μtm and Vickers hardness Hv of 800-1200 claim 1 , and 5-15% by mass of second hard particles having an average particle size of 10-150 μm and Vickers hardness Hv of 400-750.3. The valve seat of an iron-based sintered alloy according to wherein said first hard particles are made of an Fe-Mo-Si alloy comprising by mass 40-70% of Mo claim 1 , and 0.1-2.0% of Si claim 1 , the balance being Fe and inevitable impurities claim 1 , and said second hard particles are made of an Fe-C-Cr-Mo-V alloy comprising by mass 0.2-0.5% of C claim 1 , 0.5-5% of Cr claim 1 , 1-5% of Mo claim 1 , and 2-5% of V claim 1 , the balance being Fe and inevitable impurities.4. The valve seat of an iron-based sintered alloy according to claim 1 , wherein matrix claim 1 , in which at least two types of said hard particles having different hardnesses and said solid lubricant are dispersed claim 1 , has a composition comprising by mass 0.5-2.5% of C claim 1 , 0.4-2% of Si claim 1 , 0.5-5% of Mo claim 1 , and 1-5% of Ni claim ...

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Номер записи: 23
21-11-2013 дата публикации

HIGH-TOUGHNESS COBALT-BASED ALLOY AND ENGINE VALVE COATED WITH SAME

Номер: US20130306019A1
Автор: Kurahashi Kazunori, Nishimura Shinichi, Otobe Katsunori
Принадлежит:

A surface hardening material being excellent in impact resistance and having abrasion resistance is provided. Provided are: a high-toughness cobalt-based alloy containing 25.0 to 40.0 mass % of Cr, 0.5 to 12.0 mass % of a sum of W and/or Mo, 0.8 to 5.5 mass % of Si, and 0.5 to 2.5 mass % of B, 8.0 mass % or less of each of Fe, Ni, Mn, and Cu, and 0.3 mass % or less of C, the sum amount of Fe, Ni, Mn, and C being 10.0 mass % or less, and the remainder comprising 48.0 to 68.0 mass % of Co and unavoidable impurities; and an engine valve coated with the same. 1. A high-toughness cobalt-based alloy containing 25.0 to 40.0 mass % of Cr , 0.5 to 12.0 mass % of a sum of W and/or Mo , 0.8 to 5.5 mass % of Si , and 0.5 to 2.5 mass % of B , wherein the remainder comprises 48.0 to 68.0 mass % of Co and unavoidable impurities.2. The high-toughness cobalt-based alloy according to claim 1 , further containing 8.0 mass°/or less of each of Fe claim 1 , Ni claim 1 , Mn claim 1 , and Cu claim 1 , and 0.3 mass % or less of C claim 1 , wherein the sum amount of Fe claim 1 , Ni claim 1 , Mn claim 1 , Cu claim 1 , and C is 10.0 mass % or less.3. An engine valve filled or coated with a high-toughness cobalt-based alloy according to .4. The engine valve according to claim 3 , wherein at least a face surface abutting against a sheet is filled or coated with said high-toughness cobalt-based alloy. The present invention relates to a surface hardening material used in various construction processes such as PTA powder overlay welding, TIG overlay welding, and thermal spraying, and more particularly to a high-toughness cobalt-based alloy used in a member that demands an impact resistance and to an engine valve coateded with the same.Conventionally, in an engine valve, a Co—Cr—W—C type material represented by Stellite (registered trademark) (including patent documents 1, 2) and a Co—Mo—Si type material represented by Tribaloy (registered trademark) (including patent documents 3 to 7) are used, and ...

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Номер записи: 24
28-11-2013 дата публикации

Systems, methods, and devices for valve stem position sensing

Номер: US20130312506A1
Автор: Douglas John NIELSEN, Mark William Hildebrandt
Принадлежит: Eaton Corp

A linear variable differential transformer (LVDT) for monitoring engine valve position is disclosed. The system includes a valve guide having an elongated recess through it. The engine valve has a valve head and a valve stem with two adjacent materials having different magnetic properties meeting at an interface. The valve stem fits and moves linearly within the valve guide, and the valve head closes an engine combustion chamber. It also includes monitoring coils within the valve guide that create a signal related to the position of the interface within the valve guide. An engine control unit (ECU) is coupled to the monitoring coils and receives and analyzes the signal from the monitoring coils to determine operation of the valve.

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Номер записи: 25
28-11-2013 дата публикации

INTAKE ENGINE VALVES

Номер: US20130312694A1
Автор: Sakaguchi Hiroshi, TANIKAWA Hironori
Принадлежит: AISAN KOGYO KABUSHIKI KAISHA

An intake engine valve may have a tapered portion positioned between a valve head and a valve stem tapering from a larger size to a smaller size in the direction of the valve stem. The valve stem may include a small diameter portion positioned between a guide stem portion And a stem end portion on the side of the tapered portion and having a diameter smaller than a diameter or diameters of the guide stem portion and the stem end portion. The guide stem portion may be guided by a valve guide of the engine. 1. A forged intake engine valve used for opening and closing an intake port of an engine , comprising:a valve head;a valve stem; anda tapered portion positioned between the valve head and the valve stem and having a tapered surface tapering from the valve head towards the valve stem, the tapered surface extending along a straight line as viewed in its cross-section and having a taper angle; andwherein the valve stem includes a small diameter portion positioned between a guide stem portion and a stem end portion on a side of the tapered portion and having a diameter smaller than both a diameter of the guide stem portion and a diameter of the stem end portion, the guide stem portion being configured to be guided by a valve guide of the engine.2. The forged intake engine valve according to claim 1 , wherein the tapered surface and a backside surface of the valve head are left as forged surfaces without being machined.3. The forged intake engine valve according to claim 1 , wherein the small diameter portion is formed such that a terminal end of the small diameter portion on the side of the stem guide portion is positioned proximal to an axial end of the valve guide on the side of the intake port when the engine valve is in an opened position.4. The forged intake engine valve according to claim 2 , wherein the small diameter portion is formed such that a terminal end of the small diameter portion on the side of the stem guide portion is positioned proximal to an axial ...

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Номер записи: 26
28-11-2013 дата публикации

Method for Production of Valve Head Portion of Hollow Engine Valve and Hollow Engine Valve

Номер: US20130313463A1
Автор: Yoshimura Hyoji
Принадлежит:

Forming of a valve head portion () of a hollow engine valve (V) comprising a material particularly satisfactory in heat resistance is performed by cold forging. On this occasion, the material with excellent heat resistance is worked to form a valve head portion semifinished product () having a hollow hole (S) whose inner diameter (φ) is equal to the maximum inner diameter (φ) of a hollow hole (S) of a finished product of the valve head portion (), and having a diameter-increased section () whose maximum outer diameter (φ) is equal to the maximum outer diameter (φ) of a diameter-increased section () of the finished product. Parts of the valve head portion semifinished product other than a central part to a lower part of the diameter-increased section () are necked down by cold forging performed a plurality of times to obtain the finished product of the valve head portion (). This method of obtaining the finished product is provided by the present invention. 1. A hollow engine valve , comprising:a hollow shaft portion sealed at one end; anda valve head portion welded to another end of the hollow shaft portion;said valve head portion being formed from a material having heat resistance comparable to or better than the heat resistance of a material for the hollow shaft portion;the valve head portion comprising a cylindrical barrel section and a diameter-increased section at one end of the barrel section, the diameter-increased section being integral with the barrel section;a valve head portion hollow hole opening at a side welded to the hollow shaft portion, the valve head portion hollow hole having an increased diameter in the diameter-increased section of the valve head portion, the inner diameter of the valve head portion hollow hole decreasing toward the barrel section and being equal at said barrel section to an inner diameter of a hollow hole of the hollow shaft portion;the maximum diameter of the valve head portion hollow hole being larger than a maximum outer ...

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Номер записи: 27
05-12-2013 дата публикации

TAPPET FOR A VALVE TRAIN OR A PUMP DRIVE AND METHOD OF MAKING A TAPPET

Номер: US20130319364A1
Автор: Backer Alexander, Groschel Josef, Ross Christoph
Принадлежит: SCHAEFFLER TECHNOLOGIES AG & CO. KG

A tappet for a valve train or a pump drive particularly a cup tappet () having a hollow cylindrical outer body on whose wall region () an anti-rotation element () is received in a window-type through-opening (), the anti-rotation element () being seated through support surfaces () of a head () on an outer diameter () of the wall region () and extending with a shank () projecting from the head () through said through-opening (). The anti-rotation element () is fixed via a welded joint. In order to fix the anti-rotation element () with low manufacturing costs and, at the same time, with only an insignificant impairment of the outer body, the welded joint is made between the shank of the anti-rotation element () and an inner body that is received in the outer body and is connected to the outer body. A method of making a tappet of the aforesaid tappet is also provided. 1. A tappet for a valve train or a pump drive , comprising a hollow cylindrical outer body having a wall region with a window-type through-opening in which an anti-rotation element is received , said anti-rotation element is seated by support surfaces of a head thereof on an outer diameter of said wall region and extends with a shank projecting from said head through said through-opening , and said anti-rotation element being fixed in position by a welded joint , the welded joint is made between the shank of the anti-rotation element and an inner body received in the outer body and connected to the outer body.2. The tappet according to claim 1 , wherein the shank of the anti-rotation element is received through the through-opening with a loose fit.3. The tappet according to claim 1 , wherein a front end surface of the shank is welded to an opposing support surface on the inner body.4. The tappet according to claim 3 , wherein the anti-rotation element projects with the shank radially into a depression on the inner body claim 3 , said depression overlaps the through-opening in a peripheral direction claim ...

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Номер записи: 28
16-01-2014 дата публикации

Cylinder structure for internal combustion engine

Номер: US20140014058A1
Автор: Hideaki Okumura, Kim ihiko Maehata, Yuta Furukawa
Принадлежит: Mitsubishi Heavy Industries Ltd

A cylinder structure satisfies the following conditions: 12%≦d/a≦27%, where d is a distance between a cylinder inner surface 12 a and an exhaust valve member 20 b, and a is a diameter of the exhaust valve member; 40%≦c/b≦50%, where c is a length of a non-guided portion of the exhaust valve 20 located below a lower end of a sleeve 26 when the exhaust valve 20 is closed, and b is a diameter of a cylinder bore; and 0.5%≦e/S≦0.8%, where e is a gap between an exhaust valve rod 20 a and the sleeve 26 and S is a diameter of the exhaust valve rod 20 a.

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Номер записи: 29
03-01-2019 дата публикации

METHOD OF MANUFACTURING HIGH-CONDUCTIVITY WEAR RESISTANT SURFACE ON A SOFT SUBSTRATE

Номер: US20190001447A1
Автор: Dutta Bhaskar
Принадлежит:

A method of forming a valve seat of an engine head formed from a first composition includes forming a groove at a predetermined valve seat location of a bore defined by the engine head. A source of directed heat energy preheats at least the valve seat location to about a temperature of the melting point of the first composition with the source of directed heat energy. The source of directed heat energy is infused with a material having a second composition generating a melt pool upon the groove by direct metal deposition with the melt pool including the second composition. The second composition includes a heat conductivity generally equal to a heat conductivity of the first composition for providing efficient transfer of heat energy from the first composition to the second composition. 1. A method of forming a valve seat of an engine head formed from a first composition includes the steps of:forming a groove at a predetermined valve seat location of a bore defined by said engine head;providing a source of directed heat energy;preheating at least said valve seat location to about a temperature of the melting point of the first composition with the source of directed heat energy;infusing the source of directed heat energy with a material having a second composition and generating a melt pool upon the groove by direct metal deposition, with the melt pool including the second composition; andsaid second composition including a heat conductivity generally equal to or greater than a heat conductivity of the first composition for providing efficient transfer of heat energy from the first composition to the second composition.2. The method set forth in claim 1 , wherein said step of infusing the source of directed heat energy with a material having a second composition is further defined by providing a second composition comprising:copper in the amount of 40-50 percent by weight;cobalt in the amount of 15-25 percent by weight;carbon in the amount of less than 0.1 percent ...

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Номер записи: 30
04-01-2018 дата публикации

Pivoting Piston Machine

Номер: US20180003106A1
Автор: Herbert Huettlin
Принадлежит: Innowatt GmbH

A pivoting piston machine includes a housing, a first piston and a second piston arranged in the housing, the first and second pistons being pivotable away from one another and toward one another about a pivot axis. The machine has a working chamber arranged between first and second piston. The working chamber increases and decreases in size in alternating fashion during pivoting of the first piston and of the second piston. The machine also has a inlet mouth for admission and discharge of the working medium. A closing element for closing and opening the inlet or the outlet has a valve disk interacting with a valve seat. Either the inlet mouth or the outlet mouth is arranged within the working chamber between the first end surface and the second end surface, and the valve seat and the valve disk are arranged at either the inlet mouth or the outlet mouth.

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Номер записи: 31
02-01-2020 дата публикации

JOINING APPARATUS AND METHOD OF JOINING

Номер: US20200003086A1
Автор: Nagai Hiroyuki, Tashiro Takahisa, Yamazaki Takeshi, Yokoyama Takefumi
Принадлежит:

An electrode unit of a joining apparatus includes an abutting section provided with a tapered outer circumferential surface that contacts a tapered pressure-receiving surface by being inserted into an inside of a first metal member. The tapered outer circumferential surface inclines in a direction of getting closer to an axial center of the abutting section from one end side to another end side. At least part of the abutting section has a thickness elastically deformable in such a manner that the tapered outer circumferential surface aligns with the tapered pressure-receiving surface during application of a pressurizing force to the first metal member and a second metal member. 1. A joining apparatus by which a first joining surface provided on an outer circumferential side of a circular ring-shaped first metal member , and a second joining surface provided on an inner circumferential side of an insertion port of a second metal member into which the first metal member is inserted , are joined by electrification and pressurization ,at least part of the first joining surface being tapered inclining in a direction of getting closer to an axial center of the first metal member, from one end side toward the other end side in an axial direction of the first metal member,an inner circumferential side of the first metal member being provided with a tapered pressure-receiving surface inclining in the direction of getting closer to the axial center of the first metal member, from the one end side toward the other end side,the joining apparatus comprising an electrode unit having an abutting section,the abutting section being provided with a tapered outer circumferential surface that contacts the tapered pressure-receiving surface by being inserted from the one end side toward the other end side into an inside of the first metal member,the tapered outer circumferential surface inclining in a direction of getting closer to an axial center of the abutting section, from the one ...

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Номер записи: 32
07-01-2021 дата публикации

Hollow Exhaust Poppet Valve

Номер: US20210003044A1
Автор: HASEGAWA Jin, KUNITAKE Koji, SASAGAWA Yuki
Принадлежит:

In a hollow exhaust poppet valve including a fillet increasing in diameter toward a leading end, a stem, and a head and having a coolant within a hollow part formed from the head to the stem, the stem includes a first stem part on a base end side, and a second stem part integrated with the first stem part via a step part and integrated with the fillet, and the hollow part includes a first hollow part formed inside the first stem part, and a second hollow part formed inside the second stem part, the fillet, and the head in such fashion as to have a constant inner diameter greater than the first hollow part and formed so as to be continuous with the first hollow part via a tapered part or a curved part. 1. A hollow exhaust poppet valve including a stem and a head integrated via a fillet that increases in diameter toward a leading end and having coolant within a hollow part formed from the head to the stem , whereinthe stem includesa first stem part on a base end side, and a second stem part integrated with the first stem part via a step part, integrated with the fillet, and having a wall thickness and an outer diameter larger than the first stem part, and whereinthe hollow part includesa first hollow part formed inside the first stem part, anda second hollow part formed inside the second stem part, the fillet, and the head in such fashion as to have a constant inner diameter larger than the first hollow part and formed so as to be continuous with the first hollow part via a connecting portion.2. The hollow exhaust poppet valve according to claim 1 , wherein the second hollow part has a shape of a plurality of hollow parts different in inner diameter continuously arranged from a base end part to a leading end part in ascending order of inner diameter.3. The hollow exhaust poppet valve according to claim 2 , wherein the connecting portion is one among a plurality of connecting portions by way of which the plurality of hollow parts different in inner diameter are ...

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Номер записи: 33
03-01-2019 дата публикации

EXHAUST VALVE ASSEMBLY FOR A TWO-STROKE INTERNAL COMBUSTION ENGINE AND METHOD FOR CLEANING SAME

Номер: US20190003350A1
Автор: MATHEIS Andreas, ROLAND Guenther
Принадлежит:

A method for cleaning an exhaust valve of a two-stroke internal combustion engine is provided. The method comprises: requesting an exhaust valve cleaning cycle if at least one of a first condition or a second condition is satisfied; initiating the exhaust valve cleaning cycle if at least one of a third condition or a fourth condition is satisfied; and aborting the exhaust valve cleaning cycle if at least one of the at least one of the third or fourth conditions is no longer satisfied. The first condition is a time elapsed since a previous cleaning cycle has been completed being greater than a predetermined time. The second condition is a rate of opening of the exhaust valve being less than predetermined rate. The third condition is a throttle valve being closed. The fourth condition is an engine speed being less than a predetermined engine speed. 1. A method for cleaning an exhaust valve of a two-stroke internal combustion engine comprising:requesting an exhaust valve cleaning cycle if at least one of a first condition or a second condition is satisfied;initiating the exhaust valve cleaning cycle if at least one of a third condition or a fourth condition is satisfied; andaborting the exhaust valve cleaning cycle if at least one of the at least one of the third or fourth conditions is no longer satisfied;the first condition being a time elapsed since a previous cleaning cycle has been completed being greater than a predetermined time;the second condition being a rate of opening of the exhaust valve being less than predetermined rate;the third condition being a throttle valve being closed; andthe fourth condition being an engine speed being less than a predetermined engine speed.2. The method of claim 1 , wherein requesting the exhaust valve cleaning cycle if at least one of the first or the second conditions is satisfied includes:requesting the exhaust valve cleaning cycle if both of the first and the second conditions are satisfied.3. The method of claim 1 , wherein ...

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Номер записи: 34
08-01-2015 дата публикации

Cylinder head assembly having cooled valve insert

Номер: US20150007792A1
Автор: Raji Rexavier, Seema Iffat Farooqui
Принадлежит: Electro Motive Diesel Inc

An cylinder head assembly is disclosed. The cylinder head assembly may include a cylinder head having a stepped bore associated with a valve opening. The cylinder head assembly may also include an insert configured to engage the stepped bore, and a cooling passage at least partially formed by the insert and the stepped bore.

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Номер записи: 35
14-01-2021 дата публикации

ASSEMBLING APPARATUS, ASSEMBLING HEAD, AND ASSEMBLING METHOD

Номер: US20210008673A1
Автор: SUEOKA Hisayuki
Принадлежит: HIRATA CORPORATION

An assembling apparatus assembles a retainer by engaging a pair of cotter pieces with a valve stem. The apparatus includes an assembling head configured to hold, in a separated state, the pair of cotter pieces in the separated state prepared by a preparation unit and engage the pair of cotter pieces with the upper end of the valve stem. The head includes a storage member including a storage chamber, and a holding unit capable of pressing the pair of cotter pieces stored in the storage chamber against the upper end of the valve stem. The storage member includes first and second abutting portions. The second abutting portion positions the valve stem in the axial direction, and the first abutting portion positions the pair of cotter pieces in the axial direction. 1. An assembling method of assembling a retainer by engaging a pair of cotter pieces with an upper end of a valve stem , comprising:a preparation step of preparing the pair of cotter pieces in a separated state with a gap capable of receiving the upper end of the valve stem;a holding step of holding, in a separated state, the pair of cotter pieces in the separated state prepared in the preparation step by an assembling head; andan assembling step of moving the assembling head to a position of the valve stem on which the retainer and a valve spring are set, engaging the pair of cotter pieces with the valve stem by the assembling head, and assembling the retainer,wherein the method further comprises:a step of, before the pair of cotter pieces is held in the separated state by the assembling head, abutting upper end faces of the pair of cotter pieces against a cotter storage portion of the assembling head to position the pair of cotter pieces relative to the assembling head in a vertical direction; anda step of, before the pair of cotter pieces are engaged with the valve stem, causing the valve stem to enter the assembling head and abutting an upper end face of the valve stem against a valve stem storage portion ...

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Номер записи: 36
14-01-2021 дата публикации

ASSEMBLING APPARATUS AND ASSEMBLING METHOD

Номер: US20210008674A1
Автор: KUROKAWA Koji, NAKAUCHI Tsutomu, SUEOKA Hisayuki
Принадлежит: HIRATA CORPORATION

An assembling apparatus places a retainer on a valve spring to surround an upper end of a valve stem. The apparatus includes an assembling head, and a moving unit configured to move the assembling head between the supply position of the retainer and an assembling position. The assembling head includes a holding unit configured to hold the retainer, and a push unit configured to push out the retainer. The push unit includes a push member supported to be able to advance/retreat along an elevating direction of the assembling head, and a biasing member configured to bias the push member in an advancing direction. 1. An assembling method of placing , by an assembling head , a retainer on a valve spring provided to surround an upper end of a valve stem , a holding unit configured to hold the retainer at a lower end; and', 'a push unit configured to push out the retainer held by the holding unit,, 'wherein the assembling head compriseswherein the assembling method comprises a moving step of moving the assembling head between a supply position of the retainer and an assembling position, a horizontal moving step of moving the assembling head in a horizontal direction; and', 'an elevating step of raising/lowering the assembling head, and, 'wherein the moving step comprises a lowering step of lower the assembling head that holds the retainer;', 'a lowering stop step of stopping lowering of the assembling head before the retainer is placed on the valve spring;', 'a holding cancel step of starting cancel of holding of the retainer by the holding unit and raising of the assembling head; and, 'wherein the elevating step comprisesa placement step of causing the push unit to push out the retainer held by the holding unit and placing the retainer on the valve spring.2. The assembling method according to claim 1 , further comprising an extracting step of extracting the retainer from a retainer supplier claim 1 ,wherein the holding unit includes two holding members which face each ...

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Номер записи: 37
14-01-2021 дата публикации

Assembling apparatus and assembling method

Номер: US20210008675A1
Автор: Hisayuki Sueoka, Koji Kurokawa, Tsutomu NAKAUCHI
Принадлежит: Hirata Corp

An assembling apparatus places a retainer on a valve spring to surround an upper end of a valve stem. The apparatus includes an assembling head, and a moving unit configured to move the assembling head between the supply position of the retainer and an assembling position. The assembling head includes a holding unit configured to hold the retainer, and a push unit configured to push out the retainer. The push unit includes a push member supported to be able to advance/retreat along an elevating direction of the assembling head, and a biasing member configured to bias the push member in an advancing direction.

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Номер записи: 38
12-01-2017 дата публикации

Valve stem seal

Номер: US20170009616A1
Автор: Hiroki SHISHIDO, Tsunehisa Onuma
Принадлежит: Nok Corp

A valve stem seal exhibits superior workability of mounting of a reinforcing ring to a valve stem guide and enables the reinforcing ring to be fixed to the valve stem guide in a stable manner. A reinforcing ring is mounted to a valve stem guide by fitting a cylindrical portion to the valve stem guide from a side opposite to an inward flange portion. The cylindrical portion includes a slit extending linearly in a circumferential direction and a locking protrusion that is provided on a side opposite to the inward flange portion with respect to the slit and that is to be locked by a locking recess formed in the valve stem guide. The locking protrusion is constituted by a curved portion that is gradually recessed radially inward from the side opposite to the inward flange portion with respect to the slit to a position that reaches the slit.

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Номер записи: 39
09-01-2020 дата публикации

Sliding member, and sliding member for internal combustion engine

Номер: US20200011211A1
Автор: Junichi Arai, Katsunori Otobe, Shinichi Nishimura, Yoshinori Izawa
Принадлежит: Fukuda Metal Foil and Powder Co Ltd, Nissan Motor Co Ltd

A sliding member for an internal combustion engine includes the sliding member at a sliding part of the internal combustion engine.

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Номер записи: 40
09-01-2020 дата публикации

VALVE ARRANGEMENT AND VALVE GUIDE

Номер: US20200011213A1
Автор: Langervik Lennart, Svensson Stig Arne
Принадлежит:

A valve arrangement for supplying air to an internal combustion engine includes a first valve and a second valve arranged within the first valve. A valve guide for use in a valve arrangement is also provided. 1. A valve arrangement for supplying air to an internal combustion engine , the valve arrangement comprising:a first valve for controlling an air supply to a cylinder, the first valve being movable between a closed position in which the air cannot be supplied to the cylinder and an open position in which the air is supplied to the cylinder, the first valve comprising: a first valve head, and a first valve stem comprising an inlet in a side wall of the first valve stem, wherein the inlet is configured to receive additional air from a feeder channel, the first valve stem further comprising an internal passage, arranged in the length direction of the valve stem and fluidly connected to the inlet and configured to supply the additional air to the cylinder;a second valve arranged within the first valve and configured to control the flow of additional air to the cylinder, the second valve comprising a second valve stem and a second valve head in contact with an inner surface of the first valve head when the second valve is in a closed position;a tubular valve guide arranged to surround a portion of the first valve stem such that the first valve stem is movable in the valve guide;wherein the valve guide comprises an inner groove forming a cavity between the valve guide and the first valve stem, wherein the valve guide further comprises a valve guide aperture configured to fluidly connect the inner groove to the feeder channel, and wherein the inlet of the first valve stem is aligned with the valve guide aperture when the first valve is in a closed position.2. The valve arrangement according to claim 1 , wherein the valve guide is made from a single piece.3. The valve arrangement according to claim 1 , wherein the inner groove is arranged to span the inner ...

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Номер записи: 41
09-01-2020 дата публикации

SLIDING MEMBER, AND SLIDING MEMBER OF INTERNAL COMBUSTION ENGINE

Номер: US20200011216A1
Автор: Izawa Yoshinori
Принадлежит: NISSAN MOTOR CO., LTD.

A sliding member includes a base substrate and a coating layer formed on the base substrate. The coating layer includes an inorganic part derived from at least one type of inorganic particles selected from the group consisting of iron base alloy particles, cobalt base alloy particles, chromium base alloy particles, nickel base alloy particles, molybdenum base alloy particles, and ceramic particles, and a metal part derived from at least one type of metal particles selected from the group consisting of iron base alloy particles other than listed in the above group, copper particles, and copper alloy particles. The inorganic part is bonded to another inorganic part and/or the metal part via interfaces therebetween, and the metal part is bonded to another metal part and/or the inorganic part via interfaces therebetween. The sliding member includes an interface layer including at least one of a diffusion layer and an intermetallic compound layer on at least one part of an interface between the base substrate and the coating layer or interfaces between the inorganic part and the metal part, the inorganic parts, and the metal parts. The interface layer has a thickness of equal to or less than 2 μm. 18-. (canceled)9. A sliding member comprising a base substrate and a coating layer formed upon the base substrate ,whereinthe coating layer comprises an inorganic portion derived from at least one type of inorganic particles selected from the group consisting of iron base alloy particles, cobalt base alloy particles, chromium base alloy particles, nickel base alloy particles, molybdenum base alloy particles, and ceramic particles, and a metal portion derived from at least one type of metal particles selected from the group consisting of iron base alloy particles other than listed in the above group, copper particles, and copper alloy particles, with the inorganic portion and the metal portion being bonded together via. an interface;the sliding member includes an interface layer ...

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Номер записи: 42
09-01-2020 дата публикации

Internal combustion engine

Номер: US20200011237A1
Автор: Akio Kawaguchi, Fumio Shimizu, Hideo Yamashita, Keisuke Tanaka, Naoki Nishikawa, Toshio Horie, Yoshifumi Wakisaka
Принадлежит: Toyota Motor Corp

The present embodiment relates to an internal combustion engine having an anodic oxide coating formed on at least a portion of an aluminum-based wall surface facing a combustion chamber. The anodic oxide coating has a plurality of nanopores extending substantially in the thickness direction of the anodic oxide coating, a first micropore extending from the surface toward the inside of the anodic oxide coating, and a second micropore present in the inside of the anodic oxide coating; the surface opening diameter of the nanopores is 0 nm or larger and smaller than 30 nm; the inside diameter of the nanopores is larger than the surface opening diameter; the film thickness of the anodic oxide coating is 15 μm or larger and 130 μm or smaller; and the porosity of the anodic oxide coating is 23% or more.

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Номер записи: 43
03-02-2022 дата публикации

ENGINE VALVE WITH RAISED RING OR DIMPLE

Номер: US20220034243A1
Автор: Krieger Jeffrey Clark, Rader Kyle Michael, Roley Michael D.
Принадлежит: CATERPILLAR INC.

An engine valve includes a stem, a head comprising an outer lip surface, a seating surface extending from the outer lip surface toward the stem, and a combustion surface extending from the outer lip surface on the opposite side of the head as compared to the seating surface. The combustion surface includes a first convex arcuate surface spaced away from the outer lip surface, at least partially forming a raised ring, and a first concave arcuate surface spaced away from the outer lip surface, at least partially forming a dimple. 1. An engine head assembly for an internal combustion engine comprising:an engine head having a fluid conduit formed therein; andan engine valve including a stem, a head comprising an outer lip surface, a seating surface interposed between the stem and the outer lip surface, and a combustion surface extending from the outer lip surface on the opposite side of the head as compared to the seating surface;wherein the combustion surface includes a first convex arcuate surface spaced away from the outer lip surface, at least partially forming a raised ring, and a first concave arcuate surface spaced away from the outer lip surface, at least partially forming a dimple, and the engine valve includes a body of revolution, defining an axis of revolution, and the raised ring defines a lower axial extremity of the engine valve.2. The engine head assembly of wherein the body of revolution of the engine valve claim 1 , defines an axis of revolution claim 1 , a radial direction perpendicular to the axis of revolution claim 1 , and a circumferential direction about the axis of revolution claim 1 , and the raised ring and the dimple extend circumferentially about the axis of revolution.3. The engine head assembly of wherein the first convex arcuate surface is spaced away a first radial distance from the outer lip surface claim 2 , and the first concave arcuate surface is spaced away from the outer lip surface a second radial distance from the outer lip ...

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Номер записи: 44
21-01-2016 дата публикации

DLC FILM COATING AND COATED VALVE LIFTER

Номер: US20160017477A1
Автор: Ishii Shinichi, Kubota Yukio
Принадлежит:

[Problems to be Solved] The present invention provides a DLC (diamond like carbon) film coating and a coated valve lifter, wherein the DLC film can be formed at a film forming rate comparable with that achieved in the case of forming the DLC coating film by the CVD (chemical vapor deposition) method and has good durability comparable with that obtained in the case of forming the DLC film coating by the sputtering film forming method. 1. A DLC film coating comprising:an intermediate layer deposited on a surface of a base substrate of a mechanical element constituting an internal combustion engine and a DLC (diamond like carbon) layer deposited on the intermediate layer, whereinthe intermediate layer is formed by sputtering processing of a metal carbide or metal capable of forming a hard surface: andthe DLC layer is formed by performing sputtering processing of carbon under such a circumstance where inert gas containing hydrocarbon gas is being introduced and continuing the sputtering processing of the intermediate layer to add a common metal element to that contained in the intermediate layer thereto until completing the formation of the DLC layer, while an amount of the metal element to be added the DLC layer is raduall reduced as the thickness of the DLC layer formed on the intermediate layer becomes thicker.2. (canceled)3. A DLC film in accordance with claim 1 , wherein W (tungsten) is selected as the common metal element.4. (canceled)5. A DLC film coating in accordance with claim 3 , wherein the DLC layer is formed by controlling the amount of the metal element to be added thereto within 0.5 to 20 at % (atomic percent) at the surface of the DLC layer6. A DLC film coating in accordance with claim 3 , wherein the DLC layer is formed by controlling an H content contained therein within 8 to 30 at %.7. (canceled)8. A DLC film coating in accordance with any one of claim 3 , claim 3 , and claim 3 , wherein the mechanical element is specified as a valve train mechanical ...

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Номер записи: 45
18-01-2018 дата публикации

SEALING UNIT AND FLUID ENGINE

Номер: US20180016952A1
Автор: Buffery Harry Martin, Hordley Timothy Stephen, Lucking Graham Stuart, Palmer Don Charles
Принадлежит:

A valve stem sealing unit () for forming a seal round a valve stem () of a poppet valve () in an engine () having a body () and operated by a working fluid, the valve stem sealing unit () including: a housing () defining a through passage () running from a first end to a second end, the through passage () being arranged to receive a portion of the valve stem (); a first seal () arranged to form a seal between the valve stem () and the housing () to prevent egress of the working fluid from the first end of the housing (); and a second seal () arranged to form a seal between the housing () and a body () of the engine () to prevent egress of the working fluid from the second end of the housing (). 115-. (canceled)15. A fluid engine arranged to be driven by a change in pressure of a working fluid , the fluid engine having one or more possible leakage points , and including a working fluid collecting system , to collect any working fluid that leaks from the leakage points , the working fluid collecting system including:a cover constructed and arranged to form a sealed space around at least one of the leakage points;means for condensing working fluid leaking into the cover; andmeans for collecting the condensed working fluid.16. The fluid engine of claim 15 , wherein the means for condensing the working fluid includes a heat exchange fluid at lower temperature than the working fluid claim 15 , such that heat exchange between the working fluid and heat exchange fluid cools the working fluid.17. The fluid engine of claim 16 , wherein the means for condensing the working fluid includes a heat exchanger for exchanging heat between the working fluid and the heat exchange fluid.18. (canceled)19. The fluid engine of claim 16 , wherein the means for condensing the working fluid includes a cooling jacket arranged around the cover claim 16 , such that the working fluid condenses in the space formed by the cover.20. (canceled)21. The fluid engine of claim 20 , wherein the space ...

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Номер записи: 46
17-01-2019 дата публикации

Secure Engine Insert and Process for Installing

Номер: US20190017419A1
Автор: Frank J. Ardezzone
Принадлежит: Individual

An engine insert having an insert appendage that projects outwardly from the insert body in a direction away from the seat face, into an engine, such as to form an engine finger void between the appendage and the insert axis, in which engine finger void a finger of engine material may be positioned between the insert appendage and the insert axis.

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Номер записи: 47
21-01-2021 дата публикации

Continuous variable valve duration apparatus and engine provided with the same

Номер: US20210017885A1
Автор: Back Sik Kim, Hyeonwoo Kim, Jong Gu Kim, Kyoung Pyo Ha
Принадлежит: Hyundai Motor Co, Kia Motors Corp

A continuous variable valve duration apparatus may include a camshaft, a cam unit on which a cam is formed, wherein the camshaft is inserted into the cam unit, a guide bracket having an upper guide boss formed thereon, an internal wheel transmitting rotation of the camshaft to the cam unit, a wheel housing in which the internal wheel is rotatable inserted, wherein the wheel housing includes a guide shaft on which a guide screw thread is formed and the guide shaft is inserted into the upper guide boss to be movable, a worm wheel to which an internal screw thread engaging with the guide screw thread is formed therewithin, and to which an external screw thread is formed thereon, and a control shaft on which a control worm engaging with the external screw thread is formed.

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Номер записи: 48
28-01-2016 дата публикации

MACHINING APPARATUS AND DEBURRING DEVICE

Номер: US20160023279A1
Автор: OISHI Yasunori, Zenke Atsushi
Принадлежит: NITTAN VALVE CO., LTD.

A pair of pinching members pinching a workpiece stem portion, and a deburring tool performing deburring onto the workpiece stem portion pinched by the pair of pinching members are disposed under a pair of guide rails. The deburring tool has a recess so that an opening of the recess faces the other end face of the workpiece stem portion, and is capable of a displacement motion in an axis extension direction of the recess while rotating around the recess axis, and a recess inner circumferential surface is formed so as to reduce its diameter as it goes from the recess opening side toward a recess internal side, and a blade portion is provided on the recess inner circumferential surface. Thereby, it is possible to perform deburring without increasing the machining line length, and prevent abnormal wear of a rubbing stone due to the deburring. 1. A machining apparatus , on condition that a machining object has a stem portion and an expanded diameter portion which is integrated with one end side of the stem portion , so as to expand its diameter larger than the stem portion , comprising:a cutting device that cuts the stem portion of the machining object;a grinding device that grinds the stem portion of the machining object; anda pair of carrier members which are disposed so as to extend with a space between the cutting device and the grinding device, the pair of carrier members carry the machining object from the cutting device to the grinding device,and in which, when the pair of carrier members carry the machining object, the expanded diameter portion of the machining object is made to stride over the pair of carrier members, and the stem portion of the machining object is suspended downward from between the pair of carrier members, the apparatus whereina pair of pinching members which pinch the stem portion of the machining object when the machining object is carried to a predetermined machining position on the pair of carrier members, and a deburring tool which is ...

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Номер записи: 49
26-01-2017 дата публикации

Method for manufacturing a metallic component by pre-manufactured bodies

Номер: US20170021423A1
Автор: Johan SUNDSTRÖM, Martin Östlund, Rickard Sandberg, Tomas Berglund
Принадлежит: Sandvik Intellectual Property AB

A method for manufacturing a metallic component including the steps of providing a capsule, which defines at least a portion of the shape of the metallic component, arranging metallic material in the capsule, sealing the capsule, subjecting the capsule to Hot Isostatic Pressing for a predetermined time, at a predetermined pressure and at a predetermined temperature, and optionally, removing the capsule. The metallic material is at least one pre-manufactured coherent body, which pre-manufactured coherent body being made of metallic powder, wherein at least a portion of the metallic powder is consolidated such that the metallic powder is held together into a pre-manufactured coherent body. At least one portion of the pre-manufactured coherent body is manufactured by Additive Manufacturing by subsequently arranging superimposed layers of metallic powder.

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Номер записи: 50
10-02-2022 дата публикации

COATING METHOD

Номер: US20220042177A1
Автор: FUJIKAWA Masahito, HAMASAKI Junichi, Inoguchi Masatoshi, Kamada Koukichi, MATSUYAMA Hidenobu, Noshi Yoshitsugu, Okamoto Naoki, SHIBAYAMA Hirohisa, SHIOTANI Eiji
Принадлежит: NISSAN MOTOR CO., LTD.

When forming valve seat coats at opening portions (to ) of intake ports () provided at a cylinder block mounting surface () of a semimanufactured cylinder head (), the nozzle of a cold spray apparatus moves along a nozzle movement path for air intake (Inp) that is set between any two of the plurality of opening portions (to ), while continuing to spray a raw material powder. When forming valve seat coats at opening portions (to ) of exhaust ports (), the nozzle moves along a nozzle movement path for air exhaust (Enp) that is set between any two of the plurality of opening portions (to ), while continuing to spray the raw material powder. 111.-. (canceled)12. A coating method comprising:preparing a coating target component having a plurality of coating portions that are not continuous with one another;causing each of the plurality of coating portions and a nozzle of a cold spray apparatus to sequentially face each other while relatively moving the coating target component and the nozzle; andspraying a raw material powder onto the coating portions facing the nozzle using a cold spray method to form a coat on each of the plurality of coating portions,wherein in a nozzle movement path from a coating portion having been formed with the coat to another coating portion to be subsequently formed with the coat, injection of the raw material powder from the nozzle is continued and an angle of the nozzle with respect to the coating target component is set larger or smaller than that when the nozzle forms coats on the coating portions.13. A coating method comprising:preparing a semimanufactured cylinder head having a main body portion with a cylinder block mounting surface, a combustion chamber upper wall portion provided at the cylinder block mounting surface, and a plurality of opening portions of intake or exhaust ports, the opening portions being not continuous with one another;causing each of the plurality of opening portions and a nozzle of a cold spray apparatus to ...

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Номер записи: 51
24-01-2019 дата публикации

METERING PLATE FOR REDUCTION IN DISCHARGE COEFFICIENT VARIATION BETWEEN GASEOUS FUEL INJECTORS

Номер: US20190024541A1
Автор: DeHerrera Steven A., Farrow Timothy J., Kifer Roger M., Pedley Jerrod C.
Принадлежит: WOODWARD, INC.

Provided is a metering plate for a poppet-style valve in which the metering plate includes a peripheral edge structure that reduces the impact of edge variation as a result of typical manufacturing tolerances. The peripheral edge structure is located at the sealing surface and extends from the peripheral surface of the metering plate so as to avoid a sharp edge at the outer diameter of the metering plate. In embodiments, the peripheral edge structure is a chamfered surface or a curved surface. Small dimensional deviations from these surfaces resulting from typical manufacturing tolerances do not have a significant effect on the discharge coefficient of the metering plate. In this way, the discharge coefficients of poppet-style valves across a fluid admission system are contained in a much tighter range, thereby enhancing the efficiency of and control over the fluid admission system. 1. A metering plate for a poppet-style valve , the metering plate comprising:a fluid-directing body, the fluid-directing body defining a first surface and at least one peripheral surface substantially perpendicular to the first surface; andat least one peripheral edge structure located proximal to the first surface, the at least one peripheral edge structure extending between the first surface and the at least one peripheral surface;wherein each of the at least one peripheral edge structure includes a transition surface, the transition surface extending at least a portion of the at least one peripheral edge structure between the first surface and the at least one peripheral surface.2. The metering plate of claim 1 , wherein the at least one peripheral edge structure further comprises an edge face claim 1 , the edge face defining a furthest peripheral extent of the metering plate claim 1 , and wherein the transition surface extends between the first surface and the edge face.3. The metering plate of claim 2 , wherein the fluid directing body is a generally cylindrical disc such that the ...

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Номер записи: 52
28-01-2021 дата публикации

INTERNALLY COOLED VALVE WITH INERTIAL PUMP

Номер: US20210025297A1
Автор: COLIN Frederic, MAREAU ANDRE, POIROT SEBASTIEN
Принадлежит:

A internally cooled poppet valve () with inertial pump () includes a valve body () having a valve head () and a valve stem (). The valve body () has a closed cavity (), in which a cooling fluid () is disposed. The inertial pump () is disposed in the valve body (), which moves the cooling fluid () in the cavity during operation. 1. An internally cooled poppet valve , comprising: a valve body having a valve head and a valve stem , wherein the valve body comprises a closed cavity , in which a cooling fluid is disposed , and including an inertial pump disposed in the valve body operative to move the cooling fluid in the cavity during operation.2. The internally cooled poppet valve according to wherein the cavity forms at least one closed circuit.3. The internally cooled poppet valve pump according to claim 1 , wherein the cooling fluid is compressible.4. The internally cooled poppet valve according to claim 1 , wherein the cooling fluid is incompressible.5. The internally cooled poppet valve according to claim 1 , wherein the inertial pump comprises at least one pump body claim 1 ,6. The internally cooled poppet valve according to wherein the inertial pump further comprises at least one control body which controls an intake/discharge of cooling fluid to or from the pump body.7. The internally cooled poppet valve according to claim 6 , wherein the at least one pump body is disposed in the at least one control body.8. The internally cooled poppet valve according to claim 7 , wherein a frictional engagement element is further disposed on the inertial pump which places at least one pump body in frictional engagement with the at least one control body.9. The internally cooled poppet valve according to claim 6 , wherein the pump has a greater working stroke than a working stroke of the at least one control body.10. The internally cooled poppet valve according to claim 6 , wherein the valve body and/or the at least one pump body and/or the at least one control body is provided ...

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Номер записи: 53
04-02-2016 дата публикации

EXHAUST VALVE ASSEMBLY FOR A TWO-STROKE INTERNAL COMBUSTION ENGINE

Номер: US20160032793A1
Автор: Berger Christian, DOPPELBAUER Markus, Jurjevec Ralph, ROLAND Guenther, Zauner Gunther
Принадлежит:

An exhaust valve assembly for a two-stroke internal combustion engine has a valve actuator having a first pressure chamber and a second pressure chamber, and a valve operatively connected to the valve actuator. The first and second pressure chambers are adapted for selectively receiving one of a first pressure and a second pressure. The first pressure is higher than the second pressure. The valve actuator moves the valve between at least a first valve position and a second valve position. The valve actuator moves the valve to the first valve position when the first pressure is supplied to the first pressure chamber and the second pressure is supplied to the second pressure chamber. The valve actuator moves the valve to the second valve position when the second pressure is supplied to the first pressure chamber and the first pressure is supplied to the second pressure chamber. 1. An exhaust valve assembly for a two-stroke internal combustion engine comprising:a valve actuator having a first pressure chamber and a second pressure chamber,the first pressure chamber being adapted for selectively receiving one of a first pressure and a second pressure,the second pressure chamber being adapted for selectively receiving one of the first pressure and the second pressure,the first pressure being higher than the second pressure; anda valve operatively connected to the valve actuator, the valve actuator moving the valve between at least a first valve position and a second valve position,the valve actuator moving the valve to the first valve position when the first pressure is supplied to the first pressure chamber and the second pressure is supplied to the second pressure chamber, andthe valve actuator moving the valve to the second valve position when the second pressure is supplied to the first pressure chamber and the first pressure is supplied to the second pressure chamber.2. The exhaust valve assembly of claim 1 , wherein the valve actuator moves the valve between the ...

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Номер записи: 54
17-02-2022 дата публикации

Method for producing a welded cavity valve

Номер: US20220048130A1
Автор: Antonius Wolking, Thorsten MATTHIAS
Принадлежит: Federal Mogul Valvetrain GmbH

A method for producing a cavity valve is provided. The method includes providing a valve body which has a cavity in the interior. The valve body has a circular opening having an opening edge surface on a bottom side. A circular valve cover with a cover edge surface is provided. Inductive heating of at least one of the opening edge surface or the cover edge surface takes place and then welding the valve body to the valve cover by friction welding of the opening edge surface to the cover edge surface.

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Номер записи: 55
01-02-2018 дата публикации

HYBRID COMPOSITE CYLINDER HEAD

Номер: US20180030920A1
Автор: Madin Mark Michael, Wicks Christopher Donald
Принадлежит: FORD GLOBAL TECHNOLOGIES, LLC

An engine cylinder head includes an internal metal structure formed from a metal material, at least a portion of which includes a thermal coating and an external polymer composite structure formed from a polymer composite material, wherein the external polymer composite structure at least partially surrounds the internal metal structure. 1. An engine cylinder head comprising:an internal metal structure formed from a metal material, at least a portion of which includes a thermal coating; andan external polymer composite structure formed from a polymer composite material, wherein the external polymer composite structure at least partially surrounds the internal metal structure.2. The engine cylinder head of claim 1 , wherein the internal metal structure includes a fire deck with an exhaust port surface and the thermal coating covers the exhaust port surface.3. The engine cylinder head of claim 1 , wherein the internal metal structure forms a combustion chamber coated with the thermal coating.4. The engine cylinder head of claim 1 , wherein the internal metal structure includes a valve seat insert coated with the thermal coating.5. The engine cylinder head of claim 1 , further including a valve.6. The engine cylinder head of claim 5 , wherein at least a portion of the valve includes a thermal coating.7. The engine cylinder head of claim 6 , wherein an entire surface of a valve head face of the valve includes the thermal coating.8. The engine cylinder head of claim 5 , wherein an entire valve and its surfaces are made from ceramic.9. The engine cylinder head of claim 1 , wherein the thermal coating is a ceramic coating.10. The engine cylinder head of claim 1 , wherein the external polymer composite structure is made from a thermoset resin.11. An engine cylinder head comprising:an internal metal structure formed from a metal material;an external polymer composite structure formed from a polymer composite material; andan exhaust valve and an intake valve,wherein at least ...

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Номер записи: 56
01-02-2018 дата публикации

PISTON TOP LAND STRUCTURE

Номер: US20180030921A1
Автор: Montgomery David
Принадлежит: CATERPILLAR INC.

A piston for a premixed spark-ignited or premixed dual fuel internal combustion engine is disclosed. The piston may be configured to reciprocate along a longitudinal axis of a combustion chamber defined by a cylinder of the engine. The piston may comprise a piston head, a top annular groove configured to receive a top annular ring, and a skirt having a pin bore extending along a pin bore axis that is configured to receive a wrist pin for connecting the piston to a connecting rod. The piston may further comprise a top land formed in the piston head that is chamfered in a direction perpendicular to the pin bore axis such that the top land does not contact an inner wall of the cylinder when the piston rocks about the pin bore axis. The top land may be non-chamfered in a direction parallel to the pin bore axis. 1. A piston for a premixed spark-ignited or a premixed dual fuel internal combustion engine , the piston being configured to reciprocate along a longitudinal axis of a combustion chamber defined by a cylinder of the internal combustion engine , comprising:a piston head including an upper surface facing the combustion chamber, and a top annular groove configured to receive a top piston ring;a skirt extending from the piston head and including a pin bore configured to receive a wrist pin for connecting the piston to a connecting rod, the pin bore extending along a pin bore axis; anda top land formed on the piston head and extending between the upper surface and the top annular groove of the piston head, the top land including an upper annular edge that adjoins the upper surface of the piston head and a lower annular edge that adjoins the top annular groove, the upper annular edge having an elliptical shape with a major axis extending parallel to the pin bore axis and a minor axis extending perpendicular to the pin bore axis, the lower annular edge having a circular shape with a diameter substantially equivalent to a length of the major axis of the upper annular ...

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Номер записи: 57
31-01-2019 дата публикации

METHOD FOR FILLING WITH METALLIC SODIUM

Номер: US20190030595A1
Автор: HANAWA Masashige, HOMMA Koichi, MIURA Kuniaki, ONOSE Ryo, UCHIDA Shigeru
Принадлежит:

Provided is a method for filling a stem-side hollow area of an engine valve with metallic sodium. The method includes injecting melted metallic sodium into a cylinder having a larger diameter than an inner diameter of the hollow area of the engine valve, forming a solidified metallic sodium rod having a substantially uniform structure in the cylinder, inserting the metallic sodium into the hollow area of the engine valve through a nozzle having a small diameter, and sealing the engine valve. 15-. (canceled)6. A method for filling a hollow area of a hollow engine valve with metallic sodium , the method comprising:injecting melted metallic sodium into a cylinder having a larger diameter than an inner diameter of the hollow area of the engine valve under a directional solidification condition, at a speed slightly faster than a speed at which a droplet solidifies, and in a form in which no discontinuity occurs;forming a solidified metallic sodium rod having a substantially uniform structure in the cylinder;inserting metallic sodium into the hollow area of the engine valve through a nozzle shaped die having a small diameter while keeping the uniform structure of the metallic sodium rod;cutting the inserted metallic sodium; andsealing the engine valve.7. The method for filling with metallic sodium according to claim 6 , wherein the melted metallic sodium is injected into the cylinder with a boundary of the metallic sodium in the cylinder kept in a semi-solidified condition.8. The method for filling with metallic sodium according to claim 6 , wherein the melted metallic sodium is injected into the cylinder by dripping.9. The method for filling with metallic sodium according to of claim 6 , wherein an inner diameter of the cylinder is within a range of 20 mm to 50 mm claim 6 , a temperature of the metallic sodium is within a range of 180° C. to 250° C. claim 6 , and an injection speed is within a range of 150 g/min to 300 g/min.10. A method for purifying metallic sodium ...

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Номер записи: 58
05-02-2015 дата публикации

IRON-BASED ALLOYS AND METHODS OF MAKING AND USE THEREOF

Номер: US20150034037A1
Автор: Doll David, Dooley Douglas W., Qiao Cong Yue, Vennema Peter
Принадлежит: L. E. Jones Company

An iron-based alloy includes, in weight percent, carbon from about 2 to about 3 percent; manganese from about 0.1 to about 0.4 percent; silicon from about 0.3 to about 0.8 percent; chromium from about 11.5 to about 14.5 percent; nickel from about 0.05 to about 0.6 percent; vanadium from about 0.8 to about 2.2 percent; molybdenum from about 4 to about 7 percent; tungsten from about 3 to about 5 percent; niobium from about 1 to about 3 percent; cobalt from about 3 to about 5 percent; boron from zero to about 0.2 percent; and the balance containing iron and incidental impurities. The alloy is suitable for use in elevated temperature applications such as in valve seat inserts for combustion engines. 1. An iron-based alloy comprising , in weight percent:carbon from about 2 to about 3 percent;manganese from about 0.1 to about 0.4 percent;silicon from about 0.3 to about 0.8 percent;chromium from about 11.5 to about 14.5 percent;nickel from about 0.05 to about 0.6 percent;vanadium from about 0.8 to about 2.2 percent;molybdenum from about 4 to about 7 percent;tungsten from about 3 to about 5 percent;niobium from about 1 to about 3 percent;cobalt from about 3 to about 5 percent;boron from zero to about 0.2 percent; andbalance iron and incidental impurities.2. The alloy according to claim 1 , wherein the carbon content of the alloy is from about 2.4 to about 2.7 weight percent.3. The alloy according to claim 1 , wherein the alloy contains at least about 0.08 weight percent boron.4. The alloy according to claim 1 , wherein the alloy contains at least about 2.4 weight percent carbon and at least about 0.08 weight percent boron.5. The alloy according to claim 1 , wherein the cobalt content of the alloy is from about 3.5 to about 4 weight percent.6. The alloy according to claim 1 , wherein the alloy comprises intradendritic regions containing tempered martensite and interdendritic regions comprising eutectic reaction phases.7. The alloy according to claim 1 , wherein the alloy is ...

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Номер записи: 59
09-02-2017 дата публикации

COMBUSTION ENGINE WITH PNEUMATIC VALVE RETURN SPRING

Номер: US20170037750A1
Автор: CARLSON Urban, Höglund Anders, IVARSSON Lars, KOENIGSEGG Christian
Принадлежит:

A combustion engine includes an engine valve arranged to selectively open/close a combustion chamber of the engine, a cylinder head adjacent the combustion chamber, arranged to guide a valve stem of the engine valve, the engine valve being axially displaceable relative to the cylinder head between the combustion chamber closed position and the combustion chamber fully opened position, and a valve spring retainer connected to the valve stem. The valve spring retainer partly delimits a gas spring volume, which is in fluid communication with an adjacent gas volume via a port when the engine valve is in the combustion chamber closed position, and which is separated from the adjacent gas volume when the engine valve is in the combustion chamber fully open position, the port being open during at least 25% of the maximal stroke of the engine valve and being closed due to a displacement of the engine valve. 250845. The combustion engine according to claim 1 , wherein said port () is open during at least 35 percentage of the maximal stroke of the engine valve () claim 1 , preferably at least percentages.3508. The combustion engine according to claim 1 , wherein said port () is open during a maximum of 70 percentage of the maximal stroke of the engine valve () claim 1 , preferably a maximum of 60 percentages.4373883946394746473737473748. The combustion engine according to claim 1 , wherein the cylinder head comprises a lead through () claim 1 , which is arranged to guide the valve stem () of the engine valve () claim 1 , said valve spring retainer () and a cylinder shaped sleeve () that extends from the valve spring retainer () forming a valve spring cover () claim 1 , the cylinder shaped sleeve () of the valve spring cover () being telescopically displaceable in relation to said lead through () claim 1 , radially outside the lead through () claim 1 , and the valve spring over () and the lead through () delimiting said gas spring volume ().5464750484987. The combustion engine ...

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Номер записи: 60
08-02-2018 дата публикации

INTERNAL COMBUSTION ENGINE AND METHOD FOR COATING INTERNAL COMBUSTION ENGINE COMPONENTS

Номер: US20180038308A1
Автор: ANDRUSKIEWICZ, Durrett Russell P., Hill Gary P., IV Peter P., MARTIN John H., Najt Paul M., Ro Christopher J., SCHAEDLER Tobias A.
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

An internal combustion engine includes a component configured to be subjected to combustion gasses, the component includes a substrate presenting a surface and a coating applied to the surface of the substrate. The coating includes an insulating layer applied to the surface having a plurality of microspheres and a sealing layer bonded to the insulating layer and seals against the insulating layer. 1. An internal combustion engine comprising: a substrate presenting a surface; and', an insulating layer applied to the surface having a thickness of between about 50 microns and about 1 millimeter, wherein the insulating layer comprises a plurality of microspheres and a porosity of between about 80% and about 95%; and', 'a sealing layer bonded to the insulating layer and seals against the insulating layer,', 'wherein the sealing layer has a thickness of between about 1 micron and about 20 microns., 'a coating applied to the surface of the substrate including], 'at least one component configured to be subjected to combustion gasses, the component including2. The internal combustion engine of further comprising a bonding layer disposed between and bonded to the surface of the substrate and the insulating layer.3. The internal combustion engine of wherein the bonding layer is formed of one or more elements to balance a coefficient of thermal expansion between the substrate and the insulating layer.4. The internal combustion engine of wherein the bonding layer is formed of one or more elements that may include copper to promote bonding between the substrate and the insulating layer.5. The internal combustion engine of wherein the insulating layer further comprises a matrix material configured to bond with the plurality of microspheres.6. The internal combustion engine of wherein the at least one component is a piston of the internal combustion engine.7. The internal combustion engine of wherein the at least one component is an exhaust port of the internal combustion engine.8. ...

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Номер записи: 61
06-02-2020 дата публикации

Multi-part roller tappet

Номер: US20200041018A1
Автор: Norbert Geyer
Принадлежит: Schaeffler Technologies AG and Co KG

A roller tappet, in particular for a high-pressure fuel pump, is provided that is guided in the direction of the longitudinal axis thereof in a housing receptacle and is driven translatably in the longitudinal direction by cams of a camshaft. The roller tappet has a tappet body. This tappet body has a tappet skirt, a pump piston contact point (9), and a rotatably mounted roller (4), by which the roller tappet is supported on the camshaft. The tappet body has a guide cylinder (1), which is mounted in the housing receptacle and on which the roller (4) is supported, and a cup-shaped sleeve (7) having the pump piston contact point (9), which cup-shaped sleeve is supported in the guide cylinder (1) by a radial ring (8). A cylindrical constriction (5) is formed in the guide cylinder (1) in the region of the radial ring support.

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Номер записи: 62
19-02-2015 дата публикации

Valve seat

Номер: US20150047596A1
Автор: Fusanobu Hanada, Shohtaroh Hara, Yoshio Koyama
Принадлежит: TPR Co Ltd

Provided is a valve seat having excellent strength and wear resistance. In a valve seat using an iron-based sintered alloy, an oxide mains composed of triiron tetroxide is formed by oxidation treatment on the surface and interior of the iron-based sintered alloy, and the average area ratio of the oxide mainly composed of triiron tetroxide in a cross section of the iron-based, sintered alloy in the state prior to installation on a cylinder head is 5 to 20%. Preferably, the iron-based sintered alloy contains hard particles formed from at least one compound of carbides, silicides, nitrides, borides, and intermetallic compounds containing one or more elements selected from groups 4a to 6a of the periodic table, and the average area ratio of the hard particles in the cross section of the iron-based sintered alloy in the state prior to installation on a cylinder head is 5 to 45%.

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Номер записи: 63
15-02-2018 дата публикации

HELICAL FOLLOWER INTERNAL COMBUSTION ENGINE

Номер: US20180045112A1
Автор: COLLINS Evan John, RICHARDSON John Michael
Принадлежит:

The present invention is helical follower internal combustion engine. The present invention has a smooth, cylindrical follower orthogonally attached to a piston rod. The follower fits into two connected half-cylindrical, helical grooves formed by a two-piece cylindrical sleeve. The two-piece cylindrical sleeve is attached to a rotating cylindrical hub. Reciprocal motion of the piston causes rotation of the rotating cylindrical hub. The present invention has a feature that prevents the piston from rotating. The present invention can create electricity by connecting a rotor coil to the rotating cylindrical hub and placing a stator coil in near proximity. In an alternative embodiment, the present invention has an external drive shaft attached to the rotating cylindrical hub. 1. A helical follower internal combustion engine comprising;a piston in a combustion chamber, wherein the piston has a piston head and a piston rod, wherein a fuel-air mixture is capable of moving the piston in a reciprocal motion; and wherein the piston rod has a hole into which is seated and fixed a smooth, cylindrical follower that is orthogonal to the piston rod;a rotating cylindrical hub into which the piston rod extends and to which a rotor coil is attached;a stator coil from which electrical output can be drawn when the rotor coil is rotating;a two-piece cylindrical sleeve, comprised of an upper piece and a lower piece, fastened externally to the rotating cylindrical hub, wherein the two-piece cylindrical sleeve has two half-cylindrical, helical grooves; andan anti-rotation feature that prevents the piston from rotating;wherein the follower fits in the two-half cylindrical, helical grooves.2. The helical follower internal combustion engine of claim 1 , wherein the follower pushes on the lower piece of the two-piece cylindrical sleeve when the piston head moves towards the rotating cylindrical hub claim 1 , causing the rotating cylindrical hub to rotate.3. The helical follower internal ...

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Номер записи: 64
25-02-2016 дата публикации

HOLLOW POPPET VALVE

Номер: US20160053641A1
Автор: ICHIMIYA Atsuyuki, Tsuneishi Osamu
Принадлежит: NITTAN VALVE CO., LTD.

A hollow poppet valve () having an improved heat transfer capability is provided. The valve has an internal cavity (S), extending from within a valve head () into a stem () of the valve, is loaded with a coolant () together with an inert gas. The coolant in the valve head () is stirred by swirl flows of the coolant generated during reciprocal motions of the valve. A multiplicity of swirl-forming protrusions are formed on at least on one of the bottom and the ceiling of the valve head cavity (S) in such a way that swirl flows (F F) of coolant are generated by the protrusions in the valve head cavity (S) during reciprocal motions of the valve to thereby stir the coolant in the circumferential direction of the cavity (S). 1. A hollow poppet valve , comprising:a stem;a valve head integrally formed at one end of the stem, andan internal cavity that extends from inside the valve head into the stem, the internal cavity loaded with a coolant together with an inert gas,wherein the internal cavity has a diametrically large valve head cavity formed in the valve head and a diametrically small linear stem cavity formed in the stem in communication with a central region of the valve head cavity, andwherein a plurality of swirl-forming protrusions are formed on at least one of a bottom or a ceiling of the valve head cavity, the swirl-forming protrusions being positioned at substantially equal intervals in a circumferential direction of the valve head cavity, wherein each of the protrusions has a sloping face inclined in the circumferential direction to generate a swirl flow of the coolant in the valve head cavity around a central axis of the valve during a reciprocal motion of the valve in a direction along the central axis.2. The hollow poppet valve according to claim 1 , wherein swirl-forming protrusions are provided on the bottom and the ceiling of the valve head cavity and the sloping faces of the protrusions are inclined in the same circumferential direction.3. The hollow ...

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Номер записи: 65
25-02-2021 дата публикации

LIFTER PROVIDING IMPROVED CAM LOBE LUBRICATION

Номер: US20210054767A1
Автор: BALAJI Vaibhav, COFFEY Charles Francis, Hattiangadi Ashwin A., JR. John Stephen, Pipis, YODER Kevin Duane
Принадлежит: CATERPILLAR INC.

A cam follower assembly includes a cam roller, and a generally cylindrical body having an outer peripheral surface configured to be reciprocally slidable within a bore of an engine component. The cam roller is rotatably mounted on the body and configured to engage with a cam lobe on a camshaft of the engine. The cam lobe is operative to drive the body to a position at which the cam follower assembly causes one of opening of a valve or actuation of a fuel injector of the engine. A groove is formed in the body inset from the outer peripheral surface and extending axially along the outer peripheral surface parallel to the longitudinal axis of the body and aligned with an axial median plane of the cam roller and the cam lobe. 1. A cam follower assembly including a cam roller , the cam follower assembly comprising:a generally cylindrical body having an outer peripheral surface configured to be reciprocally slidable within a bore of an engine component;the body rotatably mounting the cam roller with the cam roller being configured to engage with a cam lobe on a camshaft of the engine, wherein the cam lobe is operative to drive the body to a position at which the cam follower assembly causes one of opening of a valve or actuation of a fuel injector of an engine; anda groove formed in the body, the groove being inset from the outer peripheral surface and extending axially along the outer peripheral surface parallel to a longitudinal axis of the body and aligned with an axial median plane of the cam roller and the cam lobe,wherein the body further includes a flared lower portion adjacent to the cam roller, a transverse width of the flared lower portion extending beyond the outer peripheral surface along a transverse direction, the transverse direction being transverse to the longitudinal axis,wherein the flared lower portion defines a bore hole extending therethrough, andwherein the groove is coextensive with the bore hole along the transverse direction.2. The cam follower ...

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Номер записи: 66
25-02-2021 дата публикации

VALVE SEAT INSERT FOR HIGH POWER DENSITY AND HIGH SPEED DIESEL ENGINES

Номер: US20210054768A1
Автор: Hattiangadi Ashwin A., Qu Rong
Принадлежит: CATERPILLAR INC.

A valve seat insert of an engine has a valve seating surface including an outer curved segment forming a first wear crown for contacting the valve at an early wear state, an inner curved segment forming a second wear crown for contacting the valve at a later wear state, and a linear segment extending between the outer and the inner curved segments. 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 defining a valve seat center axis extending between a first axial end surface structured to face a cylinder in the internal combustion engine, and a second axial end surface;the valve seat insert further having an inner peripheral surface, an outer peripheral surface, and a valve seating surface;the valve seating surface including, in profile, an outer curved segment forming a first wear crown for contacting the valve at an early wear state, an inner curved segment forming a second wear crown for contacting the valve at a later wear state, and a linear segment extending between the outer curved segment and the inner curved segment;the inner peripheral surface including, in profile, a vertical segment extending between the second axial end surface and the inner curved segment; andthe vertical segment is set off radially inward from the engine head.2. The engine head assembly of claim 1 , wherein the valve seat insert further comprises a sloping segment that is oriented at an acute angle relative to the valve seat center axis claim 1 , the acute angle ranging from about 5° to about 10°.3. The engine head assembly of wherein the linear segment of the valve seating surface defines a break-in face contact width that is from about 1.5 millimeters to about 2.0 millimeters claim 2 , and the sloping segment has a running length that is greater than the break-in face contact width.4. The engine head assembly of the vertical ...

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Номер записи: 67
23-02-2017 дата публикации

IRON-BASED ALLOYS AND METHODS OF MAKING AND USE THEREOF

Номер: US20170051642A1
Автор: Doll David, Dooley Douglas W., Qiao Cong Yue, Vennema Peter
Принадлежит:

An iron-based alloy includes, in weight percent, carbon from about 2 to about 3 percent; manganese from about 0.1 to about 0.4 percent; silicon from about 0.3 to about 0.8 percent; chromium from about 11.5 to about 14.5 percent; nickel from about 0.05 to about 0.6 percent; vanadium from about 0.8 to about 2.2 percent; molybdenum from about 4 to about 7 percent; tungsten from about 3 to about 5 percent; niobium from about 1 to about 3 percent; cobalt from about 3 to about 5 percent; boron from zero to about 0.2 percent; and the balance containing iron and incidental impurities. The alloy is suitable for use in elevated temperature applications such as in valve seat inserts for combustion engines. 1. An iron-based alloy comprising , in weight percent:carbon from about 2 to about 3 percent;manganese from about 0.1 to about 0.4 percent;silicon from about 0.3 to about 0.8 percent;chromium from 11.5 to about 14.5 percent;nickel from about 0.05 to about 0.6 percent;vanadium from about 0.8 to about 2.2 percent;molybdenum from about 4 to about 7 percent;tungsten from about 3 to about 5 percent;niobium from about 1 to about 3 percent;cobalt from about 3 to about 5 percent;boron from zero to about 0.2 percent; andbalance iron and incidental impurities;wherein the alloy has a total carbon and silicon content of 2.3 to 3.5 percent and a microstructure of interdendritic regions comprising eutectic reaction phases.2. The alloy according to claim 1 , wherein the carbon content of the alloy is from about 2.4 to about 3 weight percent and a total carbon and silicon content is 2.7 to 3.4 percent.3. The alloy according to claim 1 , wherein the alloy contains at least about 0.08 weight percent boron.4. The alloy according to claim 1 , wherein the alloy contains at least about 2.4 weight percent carbon claim 1 , at least about 0.08 weight percent boron and a total carbon and silicon content is 2.7 to 3.3 percent.5. The alloy according to claim 1 , wherein the cobalt content of the alloy ...

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Номер записи: 68
15-05-2014 дата публикации

Valve Stem Seal With Gas Relief Features

Номер: US20140130766A1
Автор: Sakata David
Принадлежит: FREUDENBERG-NOK GENERAL PARTNERSHIP

A valve stem seal can include an elastomeric component having a first portion for having a sealed engagement with a valve stem, and a pressure relief lip engaging a valve guide. The pressure relief lip can have a sealing configuration and a venting configuration. The venting configuration can allow excess exhaust gases to vent from a combustion chamber. After the venting of excess exhaust gases, the pressure relief lip can close to the sealing configuration to prevent oil from entering the combustion chamber. The elastomeric body or the valve guide can include a pressure relief channel. The elastomeric body can also include a bumper engaging the valve guide. The pressure relief channel can be disposed in the bumper. 1. A valve stem seal assembly for an internal combustion engine , the engine including a housing separating a lubrication chamber and a combustion chamber , the valve stem seal assembly comprising:a valve guide fixed in the housing and extending between the lubrication chamber and the combustion chamber, said valve guide including a pressure relief channel in a surface thereof;a valve stem extending through said valve guide between the lubrication chamber and the combustion chamber;an annular elastomeric body disposed around said valve stem, said elastomeric body including a seal portion adapted to have a sealed engagement with the valve stem and a pressure relief lip extending from said seal portion, said pressure relief lip having a sealing configuration and a venting configuration, said sealing configuration adapted to close a passageway in fluid communication with a combustion chamber of the engine to a lubrication chamber of the engine by engaging a surface of the valve guide, said venting configuration of the pressure relief lip opens the passageway to the lubrication chamber by lifting off of the surface of the valve guide; andan annular rigid body attached to said annular elastomeric body, said annular rigid body extending around said valve guide ...

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Номер записи: 69
10-03-2022 дата публикации

METHOD OF MANUFACTURE AND DESIGN OF CAST-IN-PLACE VALVE SEATS

Номер: US20220074325A1
Автор: Gerard Dale A., Gustafson Thomas W., Hess Devin R., Wang Qigui
Принадлежит:

A cylinder head having a cast-in-place valve seat for an automobile vehicle includes a valve seat having an inner wall. At least one retaining feature integrally and homogeneously extends from the inner wall. The valve seat when positioned into a casting mold has the at least one retaining feature assisting in retaining the valve seat in the casting mold. A metal in a molten form is received in the casting mold. A cast component formed after cooling of the metal has the valve seat cast-in-place. 1. A cast-in-place valve seat for an automobile vehicle , comprising:a valve seat having an inner wall; andat least one retaining feature extending from the inner wall; andwherein the valve seat when positioned into a core box has the at least one retaining feature assisting in retaining the valve seat in a sand core prior to a casting operation including filling the casting mold with a molten metal material.2. The cast-in-place valve seat for the automobile vehicle of claim 1 , wherein the at least one retaining feature is formed of a same material as the valve seat.3. The cast-in-place valve seat for the automobile vehicle of claim 1 , wherein a material of the valve seat is formed of a first material and the at least one retaining feature is formed of a second material different from the first material.4. The cast-in-place valve seat for the automobile vehicle of claim 1 , wherein the at least one retaining feature includes at least one reduced section shaped or wedge-shaped contact member positioned in direct contact with the inner wall.5. The cast-in-place valve seat for the automobile vehicle of claim 1 , wherein the at least one retaining feature defines multiple retaining features claim 1 , having individual ones of the retaining features equidistantly positioned from successive ones of the retaining features about the inner wall of the valve seat.6. The cast-in-place valve seat for the automobile vehicle of claim 1 , wherein the at least one retaining feature ...

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Номер записи: 70
21-02-2019 дата публикации

High Performance Iron-Based Alloys For Engine Valvetrain Applications And Methods of Making And Use Thereof

Номер: US20190055860A1
Автор: Doll David, Dooley Douglas, Qiao Cong Yue, Trudeau Todd
Принадлежит: L.E. Jones Company

An iron-based alloy includes, in weight percent, carbon from about 1 to about 2 percent; manganese from about 0.1 to about 1 percent; silicon from about 0.1 to about 2.5 percent; chromium from about 11 to about 19 percent; nickel up to about 8 percent; vanadium from about 0.8 to about 5 percent; molybdenum from about 11 to about 19 percent; tungsten up to about 0.5 percent; niobium from about 1 to about 4 percent; cobalt up to about 5.5 percent; boron up to about 0.5 percent; nitrogen up to about 0.5 percent, copper up to about 1.5 percent, sulfur up to about 0.3 percent, phosphorus up to about 0.3 percent, up to about 5 percent total of tantalum, titanium, hafnium and zirconium; iron from about 50 to about 70 percent; and incidental impurities. The alloy is suitable for use in elevated temperature applications such as in valve seat inserts for combustion engines. 1. An iron-based alloy comprising , in weight percent:carbon from about 1 to about 2 percent;manganese from about 0.1 to about 1 percent;silicon from about 0.1 to about 2.5 percent;chromium from about 11 to about 19 percent;nickel up to about 8 percent;vanadium from about 0.8 to about 5 percent;molybdenum from about 11 to about 19 percent;tungsten up to about 0.5 percent;niobium from about 1 to about 4 percent;cobalt up to about 5.5 percent;boron up to about 0.5 percent;nitrogen up to about 0.5 percent;copper up to about 1.5 percent;sulfur up to about 0.3 percent;phosphorus up to about 0.3 percent;up to about 5 percent total of tantalum, titanium, hafnium and zirconium;iron from about 50 to about 70 percent; andincidental impurities.2. The alloy according to claim 1 , wherein the alloy comprises:carbon from about 1.1 to about 1.8 percent;manganese from about 0.2 to about 0.8 percent;silicon from about 0.5 to about 1.5 percent;chromium from about 11.5 to about 18.5 percent;nickel from about 1 to about 3 percent;vanadium from about 1 to about 4.5 percent;molybdenum from about 11.5 to about 18.5 percent; ...

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Номер записи: 71
02-03-2017 дата публикации

INTERNAL COMBUSTION ENGINE

Номер: US20170058758A1
Автор: Andrews Paul Francis
Принадлежит:

An internal combustion engine () includes at least one cylinder () having a piston, and a cylinder head containing an inlet duct () incorporating an inlet valve to allow flow in only one direction and an exhaust duct incorporating no mechanical flow restricting device and at least one chamber valve () through which both inlet and exhaust fluids pass from the ducts () into and out of the cylinder (), and a combustion chamber () in the cylinder () that allows the chamber valve () to be significantly open when the piston () is at top dead centre enabling a transfer of fluid, fluid flow pressure and pressure waves between the cylinder, and the inlet () and exhaust ducts (). 1. An internal combustion engine includes at least one cylinder having a piston , and a cylinder head containing an inlet duct incorporating an inlet valve to allow flow through said inlet duct in only one direction and an exhaust duct incorporating no flow restricting mechanisms or regions and at least one chamber valve through which both inlet and exhaust fluids pass from the ducts into and out of the cylinder , and a combustion chamber in the cylinder that allows the chamber valve to be significantly open when the piston is at top dead centre enabling a transfer of fluid , fluid flow pressure and pressure waves between the cylinder , and the inlet and exhaust ducts; and the at least one chamber valve is configured to receive injected fuel for atomising the fuel and/or for cooling the at least one chamber valve.2. The internal combustion engine as claimed in claim 1 , wherein the exhaust duct is tuned to accelerate the inlet fluid when the piston is near the top of its stroke claim 1 , and to create negative pressure in the cylinder to aid cylinder filling with inlet fluid claim 1 , through at least part of the induction stroke claim 1 , by harnessing energy in the flow of exhaust fluid.3. The internal combustion engine as claimed in claim 1 , wherein the exhaust duct is tuned to harness energy and ...

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Номер записи: 72
02-03-2017 дата публикации

Cylinder head with blended inlet valve seat for high tumble inlet port

Номер: US20170058823A1
Автор: Alan W. Hayman, Edward J. Keating, Erwan Gautier, Kenneth M. EASTMAN
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

A cylinder head defines an inlet port having an exit. A valve seat insert defines a seat cut surface that is disposed adjacent to the exit of the inlet port. A cross section of the inlet port parallel to a centerline of the inlet port defines a long turn edge of the inlet port cross section. The long turn edge of the inlet port cross section defines a flow path trajectory of the inlet port. The seat cut surface and the flow path trajectory are substantially aligned to extend the flow path trajectory of the long turn edge of the inlet port cross section across the seat cut surface.

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Номер записи: 73
20-02-2020 дата публикации

Self-contained e-foot

Номер: US20200056512A1
Автор: Matthew A. VANCE
Принадлежит: Eaton Intelligent Power Ltd

A rocker arm, comprises a first outer arm and a second outer. A pivot body is joined between the first end of the first outer arm and the third end of the second outer arm. An actuatable latch mechanism is within the pivot body. An inner arm assembly comprises a latch arm pivotable adjacent the pivot body. An axle joins the inner arm assembly to pivot between the first outer arm and the second outer arm. An outer arm connector spans between the second end of the first outer arm and the fourth end of the second outer arm. A valve seat insert is constrained within the inner arm assembly between the outer arm connector and the axle. Alternatively, a valve seat insert hangs from the axle and is constrained within the inner arm assembly, the valve seat insert comprising a front and a rear cusp.

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Номер записи: 74
20-02-2020 дата публикации

Internally cooled poppet valve for internal combustion engine

Номер: US20200056516A1
Автор: André MAREAU, Andreas Heinek, Antonius Wolking, Daniel EISENRING, Guido Bayard, Oliver Schulze, Stefan Kellermann
Принадлежит: Federal Mogul Valvetrain GmbH

A poppet valve (2) with a valve body (4) has a cavity (6), a coolant inlet port (8). A coolant outlet port (10). The coolant inlet port (8) and the coolant outlet port (10) are arranged on a valve stem (12) of the poppet valve (2). The cavity (6) extends into the valve stem (12) of the poppet valve (2) and into a valve head (14) of the poppet valve (2), wherein there is provided a coolant conducting element (16) within the cavity (6) and extending into the cavity (6) from the valve head (14) to the valve stem (12), where the coolant conducting element (16) in each case has a cross-section. The coolant conducting element (16) includes a pipe section (18) and a funnel section (20), and the coolant conducting element (16) extends concentrically to the poppet valve (2) in the cavity (6) of the poppet valve (2).

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Номер записи: 75
20-02-2020 дата публикации

VARIABLE VALVE TIMING DEVICE AND ASSEMBLY METHOD OF VARIABLE VALVE TIMING DEVICE

Номер: US20200056518A1
Автор: Hase Hirofumi, MATSUMOTO Takuhiro
Принадлежит: Mitsubishi Electric Corporation

A case for rotating integrally with a crankshaft of an engine; a rotor housed in the case, to be rotated integrally with a camshaft of the engine by fastening the rotor coaxially to the camshaft with a center bolt; and a groove provided around an axis of the rotor on an opposite side of the rotor to the camshaft, and having an inner wall intersecting a rotation direction of the rotor are provided. 16.-. (canceled)7. A variable valve timing device comprising:a case for rotating integrally with a crankshaft of an engine;a rotor housed in the case, to be rotated integrally with a camshaft of the engine by fastening the rotor coaxially to the camshaft with a center bolt; andat least one torque receiving part provided around an axis of the rotor on an opposite side of the rotor to the camshaft, and having a flat surface intersecting a rotation direction of the rotor, whereinthe at least one torque receiving part is a groove or a projection,the rotor has a recess in a center of a boss, andthe groove is provided on a bottom surface of the recess, and an inner wall on a radially outer side of the groove is continuous with an inner wall of the recess.8. The variable valve timing device according to claim 7 , wherein the at least one torque receiving part includes a plurality of torque receiving parts claim 7 , andthe plurality of torque receiving parts are equiangularly spaced around the axis of the rotor.9. The variable valve timing device according to claim 7 , wherein the groove penetrates the rotor in an axial direction of the rotor.10. An assembly method of a variable valve timing device comprising:{'claim-ref': {'@idref': 'CLM-00007', 'claim 7'}, 'attaching a jig to the at least one torque receiving part of the variable valve timing device according to ; and'}fastening the rotor to the camshaft with the center bolt in a state in which the flat surface of the at least one torque receiving part and a part of the jig are in surface contact with each other in the rotation ...

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Номер записи: 76
17-03-2022 дата публикации

Assembling and disassembling a mechanical seal

Номер: US20220080539A1
Автор: Darwin G. Gozun, Raed Al-Hadlaq
Принадлежит: Saudi Arabian Oil Co

A mechanical seal clamping assembly includes a base, a fulcrum, a lever, and a cap. The base supports a mechanical seal. The lever is pivotally coupled to the fulcrum at a first pivot spaced from the base. The cap is coupled to the lever and is movable by the lever with respect to the base. The cap is movable from a first position to a second position. In the first position, the cap is at a first distance away from the base. In the second position, the cap is at a second distance away from the base larger than the first distance. The lever moves the cap from the second position toward the first position to engage the mechanical seal to clamp, between the cap and the base, the mechanical seal to maintain a spring of the mechanical seal compressed during assembly or disassembly of the mechanical seal.

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Номер записи: 77
17-03-2022 дата публикации

CYLINDER HEAD VALVE SEAT WITH HIGH THERMAL CONDUCTIVITY AND MULTIPLE MATERIAL CROSS-SECTION

Номер: US20220082035A1
Автор: Doty Herbert W., Gerard Dale A., HARRIS Jeffrey, Hess Devin R., Wang Qigui
Принадлежит:

A cylinder head valve seat of an automobile vehicle includes a valve seat having a valve seat surface integrally joined to an engagement end. The engagement end includes multiple materials extending through a cross section of the engagement end. The multiple materials include: a first material having a first thermal conductivity; and a second material having a second thermal conductivity higher than the thermal conductivity of the first material, wherein the first material transitions into the second material. 1. A cylinder head valve seat of an automobile vehicle , comprising:a valve seat having a valve seat surface integrally joined to an engagement end; andthe engagement end including multiple materials extending through a cross section of the engagement end.2. The cylinder head valve seat of the automobile vehicle of claim 1 , wherein the multiple materials include at least two materials having differences in thermal conductivity.3. The cylinder head valve seat of the automobile vehicle of claim 2 , wherein the multiple materials include a first material having a copper content defining a high thermal conductivity.4. The cylinder head valve seat of the automobile vehicle of claim 3 , wherein the copper content of the first material has a low copper content claim 3 , defining a copper content less than approximately 50%.5. The cylinder head valve seat of the automobile vehicle of claim 4 , wherein the multiple materials include a second material having a high copper content defining a copper content greater than or equal to 90% claim 4 , and wherein the first material transitions into the second material.6. The cylinder head valve seat of the automobile vehicle of claim 2 , wherein the multiple materials include a first material defining silver having a first thermal conductivity and a second material defining silver having a second thermal conductivity higher than the first thermal conductivity.7. The cylinder head valve seat of the automobile vehicle of claim 1 ...

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Номер записи: 78
27-02-2020 дата публикации

METHOD AND APPARATUS FOR AUTOMATED VALVE SPRING ASSEMBLY

Номер: US20200061762A1
Автор: Ammond John, Coggins Timothy P., Moran Jack
Принадлежит:

A method and apparatus for automated valve spring assembly includes a head assembly with a pair of elongated passageways that moveably support a pair of retainer keys for movement through the passageways. The head assembly including a moveable divider plate and a pair of jaws, a push member that closes off the passageways and that slides the retainer keys along opposite sides of the divider plate. The retainer keys contact surfaces of the jaws and rotate the jaws outwardly as the keys are moved by the pushrod. The retainer plate is then retracted, and the jaws shift inwardly and push or position the retainer keys on the valve stem where the retainer plate is configured to allow sequential engagement of the rings of the retainer keys to engage the valve stem. 1. A device for assembling valve springs to a cylinder head of an internal combustion engine , the device comprising:a head assembly including upper and lower ends and defining an axis extending between the upper and lower ends, wherein the lower end is configured to compress a valve spring on a cylinder head to permit assembly of a spring retainer cap and retainer keys to a valve of the cylinder head, the head assembly including:a support structure;a pair of elongated passageways configured to moveably support a pair of retainer keys for movement of the retainer keys from first ends of the passageways to second ends that are located adjacent the lower end of the head assembly;a divider plate moveably interconnected with the support structure for powered reciprocating movement between extended and retracted positions, the divider plate having a lower end defining oppositely facing guide surfaces that are configured to moveably support a pair of retainer keys in spaced apart locations that permit an end of a valve to be positioned between the retainer keys when the divider plate is in the extended position;a pair of jaws moveably connected to the support structure, the jaws having end portions that are ...

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Номер записи: 79
17-03-2022 дата публикации

Liquid-cooled cylinder head

Номер: US20220082062A1
Автор: Andreas Zurk, Martin Klampfer
Принадлежит: AVL List GmbH

Various embodiments of the present disclosure are directed to liquid-cooled cylinder heads. In one example embodiment, a cylinder head is disclosed including a component which extends into a combustion chamber, an upper cooling jacked, a lower cooling jacket, a plurality of valves arranged around the component, a plurality of cylinder head screws, an oil deck, a fire deck, a plurality of valve guides, and a fixed connection. The fixed connection is arranged from each valve guide to the component, and is a ring having at least one support. The support and the ring extend at least from the oil deck to the fire deck thereby hounding the combustion chamber, and the component is connected to the plurality of cylinder head screws.

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Номер записи: 80
28-02-2019 дата публикации

VALVE FOR AN INTERNAL COMBUSTION ENGINE

Номер: US20190063271A1
Автор: Schlee Dimitri
Принадлежит:

The present disclosure relates to a valve, preferably an exhaust gas or gas exchange valve, having a valve head which has a front face and a rear face, the front face of the valve head including an edge region and a bulge towards the outside which has a crest region. The valve, in order to reduce the mass of the bulge of the valve head, including a laterally outer part section of the edge region that is of flatter configuration in comparison with a laterally inner part section of the edge region, or the edge region includes at least one discontinuity in cross section. 1. A valve comprising:a valve head which has a front face and a rear face, the front face of the valve head including an edge region and a bulge which has a crest region, wherein in order to reduce the mass of the bulge of the valve head, a laterally outer part section of the edge region is of flatter configuration in comparison with a laterally inner part section of the edge region, or the edge region includes at least one discontinuity in cross section.2. The valve according to claim 1 , wherein the valve is an exhaust gas or gas exchange valve.3. The valve according to claim 1 , wherein the at least one discontinuity includes at least one vertex claim 1 , inflection point or reversal point.4. The valve according to claim 1 , wherein claim 1 , in cross section claim 1 , the at least one discontinuity is arranged on the outside relative to a laterally inner end of the edge region or is arranged on the inside relative to a laterally outer end of the edge region.5. The valve according to claim 4 , wherein the inner lateral end adjoins the crest region or the outer lateral end is the outermost lateral end of the front face.6. The valve according to claim 1 , wherein the outer part section of the edge region has a lower slope in comparison with the inner part section of the edge region claim 1 , or the outer part section of the edge region has a slope in a range of less than ±5°.7. The valve according to ...

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Номер записи: 81
28-02-2019 дата публикации

Crankless engine

Номер: US20190063399A1
Автор: Doud John Galveston
Принадлежит:

The crankless sinusoidal engine has at least one cylinder, one standard piston and head with combustion chamber and inlet and exhaust valves. A main shaft with one flywheel with incorporated sinusoidal track, Connection between the piston and the sinusoidal track consists of four items; to wit, one connecting rod, one bearing trolley and two segmented rollers, said rollers being in constant contact with said sinusoidal track, one bearing on each side thereof. The bearing trolley sliding on guide pins anchored in opposite ends of cast (alternatively fabricated) housing, said guide pins positioned parallel to the main shaft. 1. A crankless sinusoidal engine comprising at least one cylinder , complete with head and inlet and exhaust poppet valves. A main shaft mounted parallel to the cylinder , one flywheel with incorporated sinusoidal track , mounted near the center of the main shaft , one connecting rod attached to the piston at one end and to a bearing trolley at the other by means of a wrist pin , said bearing trolley having two segmented rollers spaced so as to fit snugly , one against each side of the sinusoidal track. The bearing trolley is mounted on two guide pins so that it will slide parallel to the main shaft and cylinder. The guide pins are rigidly mounted in and between the front and back ends of the housing. Force from the piston through the connecting rod , bearing trolley , and segmented bearings against the sinusoidal track cause the track , flywheel , and main shaft to rotate , all enclosed in a housing.2. A crankless sinusoidal engine as claimed in claim 1 , characterized in that it comprises one or more cylinders located around the main shaft.3. A crankless sinusoidal engine as claimed in claim 1 , characterized in that the driving mechanism comprises a segmented roller constantly in contact with one cam surface and a second segmented roller in constant contact with the opposed cam surface.4. A crankless sinusoidal engine as claimed in claim 1 , ...

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Номер записи: 82
08-03-2018 дата публикации

COBALT-BASED CLADDING ALLOY FOR ENGINE VALVE AND ENGINE

Номер: US20180066342A1
Автор: Ando Kimihiko, KAMO Yuki, SHINOHARA Nobuyuki
Принадлежит: TOYOTA JIDOSHA KABUSHIKI KAISHA

A cobalt-based cladding alloy for an engine valve includes, by mass %: Cr: 13% to 35%; Mo: 5% to 30%; Si: 0.1% to 3.0%; C: 0.04% or less; Ni: 15% or less; W: 9% or less; Fe: 30% or less; Mn: 3% or less; S: 0.4% or less; and Co and inevitable impurity elements as a remainder. The amount of Co is 30% or more. 1. A cobalt-based cladding alloy for an engine valve comprising , by mass %:Cr: 13% to 35%;Mo: 5% to 30%;Si: 0.1% to 3.0%;C: 0.04% or less;Ni: 15% or less;W: 9% or less;Fe: 30% or less;Mn: 3% or less;S: 0.4% or less; andCo and inevitable impurity elements as a remainder,wherein an amount of Co is 30% or more.2. An engine comprising:{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'an engine valve on which a cladding material made of the cobalt-based cladding alloy according to is deposited,'}wherein a fuel for the engine is any one of ethanol, ethanol-blended gasoline, compressed natural gas, and liquefied petroleum gas. The disclosure of Japanese Patent Application No. 2016-175665 filed on Sep. 8, 2016 including the specification, drawings and abstract is incorporated herein by reference in its entirety.The present disclosure relates to a cobalt-based cladding alloy for an engine valve, and an engine provided with an engine valve on which a cladding material made of the cobalt-based cladding alloy is deposited.A cobalt-based cladding alloy excellent in corrosion resistance and wear resistance is employed by a valve face of an engine valve.For example, Japanese Patent Application Publication No. 5-84592 (JP 5-84592 A) discloses a cobalt-based cladding alloy consisting of, by parts by weight, Cr: 10% to 40%, Mo: more than 10% to 30%, W: 1% to 20%, Si: 0.5% to 5%, C: 0.05% to 3%, Al: 0.001% to 0.12%, 0: 0.001% to 0.1%, Fe: 30% or less, Ni: 20% or less, Mn: 3% or less, and Co and inevitable impurity elements as the remainder (here, the amount of Co is 30 wt % to 70 wt %).According to the cobalt-based cladding alloy described in JP 5-84592 A, since Fe is contained ...

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Номер записи: 83
27-02-2020 дата публикации

Vertical Sliding Valve Arm

Номер: US20200063610A1
Автор: Barber Michael D.
Принадлежит:

Improvements in a vertical sliding valve arm has been disclosed with systems and methods related to eliminating the common pivot-type rocker arm and reversing the use of the valve spring in internal combustion engines. More specifically, the camshaft lobes activate a sliding valve arm to close the engine valve instead of opening it and the valve spring is used to push open the valve instead of closing it. 1. A system of valve actuation by way of a rotating camshaft comprising:a rotating cam pushing up on a valve lifter and a pushrod to contact a horizontal sliding arm;the horizontal sliding arm contacts the pushrod on a first end of the horizontal sliding arm and is lifted by the pushrod;an engine valve is attached on the other end of the horizontal sliding arm, whereby a rise and a fall of the horizontal sliding arm opens and closes the engine valve;a spring is mounted on top of the horizontal sliding arm between the pushrod and the engine valve such that when the horizontal sliding arm rises, it compresses the spring and when the horizontal sliding arm is lowered, the spring becomes uncompressed and provides a force to open the engine valve and also provides a second force to keep the valve lifter in contact with the rotating cam.2. The system of valve actuation by way of a rotating camshaft according to claim 1 , wherein the spring is supported on a sliding arm post.3. The system of valve actuation by way of a rotating camshaft according to claim 2 , wherein the sliding arm post is secured into a cylinder head.4. The system of valve actuation by way of a rotating camshaft according to claim 3 , further includes a bushing between the horizontal sliding arm and the sliding arm post.5. The system of valve actuation by way of a rotating camshaft according to claim 2 , wherein the sliding arm post has a threaded stein.6. The system of valve actuation by way of a rotating camshaft according to claim 1 , wherein the threaded stein is configured to allow for compression ...

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Номер записи: 84
19-03-2015 дата публикации

INTERNAL COMBUSTION ENGINE AND METHOD FOR OPERATING AN INTERNAL COMBUSTION ENGINE

Номер: US20150075489A1
Автор: Puetzer Jean-Philippe
Принадлежит:

An intake system for an internal combustion engine is provided. The intake system may include an intake manifold fluidly connected to a cylinder, an intake valve coupled to the cylinder having an air supply duct longitudinally extending through a portion of a valve stem and having an outlet opening into the intake manifold and an inlet fluidly connected to a supply line fluidly connected to an intake passage downstream of a compressor and upstream of a throttle, and a shut-off valve positioned in the supply line configured to adjust the flow of gas through the supply line. 1. An internal combustion engine comprising:at least one cylinder head; and where each lifting valve has a valve stem, on whose end facing toward the cylinder there is arranged a valve head corresponding to the inlet opening and whose other end faces toward the valve actuating device and which is mounted so as to be displaceable in translational fashion in a bushing-like valve stem guide such that the valve, when actuated and during rotation of the camshaft, performs an oscillating lifting movement in the direction of its longitudinal axis between a valve closed position and a valve open position so as to open up and close off the inlet opening; and', 'where in the valve stem of at least one valve, there is provided an air supply duct which extends in a main section along the longitudinal axis of the valve, wherein, at a cylinder-side end of the air supply duct, at least one rectilinear section of the air supply duct branches off and emerges from the valve, and the air supply duct is, toward an end facing away from the cylinder, fluidly connected to the intake system via a line., 'at least one cylinder which has at least one inlet opening fluidly connected to an intake system configured to generate charge air, and a valve assembly comprising a lifting valve for each inlet opening and comprising a valve actuating device for actuating the at least one lifting valve, which valve actuating device ...

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Номер записи: 85
07-03-2019 дата публикации

VALVE SHIELD FOR AN INTERNAL COMBUSTION ENGINE

Номер: US20190072013A1
Автор: Wicks Christopher Donald
Принадлежит:

An engine is provided with a cylinder head defining a lubrication gallery intersecting a valve guide bore wall, and a valve guide. The valve guide has inner and outer walls intersecting valve-side and port-side ends. The inner wall defines a channel extending from an intermediate region of the guide to the valve-side end. The guide defines a passage extending outwardly from the channel at the intermediate region to the outer wall, with the passage fluidly connected to the gallery. Pressurized lubricant is provided to a lubrication gallery intersecting a valve guide bore wall of the cylinder head. Lubricant is directed from the gallery into a passage extending through an intermediate region of a valve guide. A moving valve stem positioned within the guide is lubricated by flowing lubricant from the passage into a channel intersecting the inner wall of the guide and to a valve end of the guide. 1. An engine comprising:a cylinder head defining a lubrication gallery intersecting a valve guide bore wall; anda valve guide having inner and outer walls intersecting valve-side and port-side ends, the inner wall defining a channel extending from an intermediate region of the guide to the valve-side end, the guide defining a passage extending outwardly from the channel at the intermediate region to the outer wall, the passage fluidly connected to the gallery.2. The engine of wherein the valve guide bore wall of the head further defines a circumferential groove intersecting the lubrication gallery.3. The engine of wherein the passage of the guide at the outer wall overlaps with the circumferential groove of the valve guide bore wall.4. The engine of wherein the outer wall of the valve guide further defines a circumferential groove at the intermediate region claim 1 , the circumferential groove intersecting the passage claim 1 , the circumferential groove of the guide overlapped with the lubrication gallery.5. The engine of further comprising a pump fluidly connected to the ...

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Номер записи: 86
24-03-2022 дата публикации

METHOD FOR INTRODUCING HIGHLY PRECOMPRESSED COMBUSTION AIR INTO A COMBUSTION CHAMBER OF AN INTERNAL COMBUSTION ENGINE, HIGH-PRESSURE INLET VALVE THEREFOR AND INTERNAL COMBUSTION ENGINE HAVING SUCH A HIGH-PRESSURE INLET VALVE

Номер: US20220090522A1
Автор: Junker Erwin
Принадлежит:

A method for introducing combustion air into a cylinder () of an internal combustion engine, a high-pressure inlet valve () provided therefor and an internal combustion engine that operates using the method and the high-pressure inlet valve are described. All the combustion air for the respective cylinders () is introduced into the cylinder () of the internal combustion engine, by means of a high-pressure inlet valve () arranged in the relevant cylinder head () and on the basis of a controlled mass flow, such that mixture formation and charge exchange are intensified. In addition, the temperature and/or pressure of the combustion air is measured and the quantity of combustion air is introduced into the cylinder (), in a controlled manner and on the basis of the measurement results, by means of the high-pressure inlet valve () by opening or closing a sliding piston () of the high-pressure inlet valve () by displacement. As a result of an axial displacement of the sliding piston () between guide sections () in the housing () of the high-pressure inlet valve (), passage areas () for combustion air are blocked in a closed position () and opened in an open position (). In the passage area (), the sliding piston () has two pressurization areas () facing each other, the surfaces of which are of equal size or differ from each other when projected in one plane. The first pressurization area () can be designed as a poppet valve () and the second pressurization area () can be designed as an annular surface (). The internal combustion engine has a high-pressure line () for the combustion air, which line is connected to the high-pressure inlet valve (). With respect to the longitudinal axis of the cylinder (), the high-pressure inlet valve () is arranged in the cylinder head () in an upright or horizontal position. 1. A method for introducing combustion air into a cylinder of an internal combustion engine , in which method the entirety of the combustion air for the respective ...

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Номер записи: 87
18-03-2021 дата публикации

COPPER ALLOY COMPOSITIONS HAVING ENHANCED THERMAL CONDUCTIVITY AND WEAR RESISTANCE

Номер: US20210078073A1
Автор: Grensing Fritz C., KRUS David J., MACK Steffen, TRYBUS Carole L.
Принадлежит: MATERION CORPORATION

The present disclosure relates to powders and wires made from a copper-containing alloy. The copper-containing alloy is a copper-nickel-tin alloy or a copper-nickel-silicon-chromium alloy. Articles formed from the metal powder exhibit high thermal conductivity, high wear resistance, and thermal stability. The powders and wire also be used as a feed material for thermal spraying and copper-containing coatings are disclosed. The copper-containing alloy material promotes increased life of engine components and fuel efficiency when used as a cylindrical liner in an internal combustion engine. 1. A composition comprising a copper-containing alloy , wherein the copper-containing alloy comprises copper , nickel , and either (i) tin or (ii) silicon and chromium , and wherein the alloy is in the form of a particulate or a wire.2. The composition of claim 1 , wherein the copper-containing alloy is a copper-nickel-silicon-chromium alloy that contains:about 5 wt % to about 9 wt % nickel;about 1 wt % to about 3 wt % silicon;about 0.2 wt % to about 2.0 wt % chromium; andbalance copper.3. The composition of claim 1 , wherein the copper-containing alloy is a copper-nickel-tin alloy that contains:about 5 wt % to about 20 wt % nickel;about 5 wt % to about 10 wt % tin; and,balance copper.4. The composition of claim 1 , wherein the copper-containing alloy is a particulate having an average particle size from about 2 micrometers to about 500 micrometers.5. The composition of claim 1 , further comprising a lubricant.6. The composition of claim 5 , wherein the lubricant comprises graphite claim 5 , talc claim 5 , MoS claim 5 , mica claim 5 , or boron nitride.7. An article formed by sintering a copper-containing alloy particulate composition claim 5 , wherein the copper-containing alloy comprises copper claim 5 , nickel claim 5 , and either (i) tin or (ii) silicon and chromium.8. The article of claim 7 , wherein the copper-containing alloy is a copper-nickel-silicon-chromium alloy that ...

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Номер записи: 88
05-03-2020 дата публикации

COMBUSTION CHAMBER OF ENGINE

Номер: US20200072096A1
Автор: BAEK Hong-Kil, LEE Seung-Woo, LEE Tae-won
Принадлежит:

A combustion of an engine include: an intake valve; a diameter formed by a point of contact between the intake valve and a valve seat; a diameter of an intake valve head; and a diameter of an imaginary extension line extended from the inner lower end portion of a cylinder head. In particular, a diameter formed by the point of contact between the intake valve and the valve seat and the diameter of the intake valve head may have a diameter difference less than or equal to a constant value, and the diameter of the intake valve head and the diameter of the imaginary extension line extended from the inner lower end portion of the cylinder head may be maintained by a diameter difference greater than or equal to a constant value after the valve seat is worn. 1. A combustion chamber of an engine , comprising:an intake valve including an intake valve face portion, and a rim portion extending downward from the intake valve face portion;a valve seat having a valve seat face portion configured to contact the intake valve face portion of the intake valve, forming a line contact together along lowermost points of the valve seat face portion, where the line contact has a first diameter and the rim portion has a second diameter; anda cylinder head including an inner lower end portion having a third diameter defined by an imaginary extension line extended from the inner lower end in parallel with a central axis of the intake valve,wherein a diameter difference between the first diameter and the second diameter is less than or equal to a first predetermined value; andwherein a diameter difference between the second diameter of the rim portion and the third diameter of the inner lower end portion of the cylinder head are maintained to be greater than or equal to a second predetermined value after the valve seat is worn by the diameter difference between the first diameter and the second diameter,wherein the intake valve face portion and the valve seat face portion are in contact only ...

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Номер записи: 89
22-03-2018 дата публикации

INTERNAL-COMBUSTION ENGINE

Номер: US20180080577A1
Автор: AMANO Takashi, OGAWA Teru
Принадлежит: TOYOTA JIDOSHA KABUSHIKI KAISHA

An internal-combustion engine has a combustion chamber surrounded by a cylinder head, a cylinder liner, and a piston. The cylinder head has a valve seat adjacent to the combustion chamber. When viewed from a direction parallel to a central axis of a cylindrical shape of the cylinder liner, the valve seat is arranged at an outer side of a central region of the combustion chamber, the central region including the central axis. The valve seat internally has a channel for a cooling medium. Regarding a cross-sectional area of the channel in a plane perpendicular to an extending direction of the channel, there are a first position of a first cross-sectional area and a second position of a second cross-sectional area larger than the first cross-sectional area. The second position is closer to the central region than the first position is. 1. An internal-combustion engine comprising a combustion chamber surrounded by a cylinder head , a cylinder liner , and a piston ,the cylinder head comprising a valve seat adjacent to the combustion chamber,wherein when viewed from a direction parallel to a central axis of a cylindrical shape of the cylinder liner, the valve seat is arranged at an outer side of a central region of the combustion chamber, the central region including the central axis,wherein the valve seat internally comprises a channel for a cooling medium,wherein regarding a cross-sectional area of the channel in a plane perpendicular to an extending direction of the channel, there are a first position at which the cross-sectional area is a first cross-sectional area and a second position at which the cross-sectional area is a second cross-sectional area larger than the first cross-sectional area, andwherein the second position is closer to the central region than the first position is.2. The internal-combustion engine according to claim 1 ,wherein the valve seat further comprises:an injection hole for injecting the cooling medium into the channel; anda discharge hole ...

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Номер записи: 90
23-03-2017 дата публикации

Method and device for diagnose of valves of an internal combustion engine

Номер: US20170081992A1
Автор: Mikael Nordin, Ola Stenlåås
Принадлежит: SCANIA CV AB

A method for diagnosis of at least one valve in at least one cylinder in a combustion engine comprising the steps, at a movement of a piston in said cylinder, of detecting movements propagating in a cylinder head of the cylinder or of parts adjacent thereto in the engine, comparing values resulting from the detection step with at least one stored setpoint value, and determining the state of said at least one valve, based on the result of said comparison.

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Номер записи: 91
25-03-2021 дата публикации

INTERNALLY COOLED VALVE HAVING A VALVE BOTTOM, AND METHOD FOR THE PRODUCTION THEREOF

Номер: US20210086292A1
Автор: ARIEF LUTHFI, BAYARD GUIDO, KELLERMAN STEFAN, WOLKING ANTONIUS
Принадлежит:

A method for manufacturing an internally cooled valve (), includes providing a valve body () having a valve stem () that ends in a valve head (). The valve body () has a cavity () that is open toward the valve head () and with a valve base element () by friction welding the valve base element () to the valve head (). The valve bottom element () is preferably a sintered component. 1. A method for manufacturing an internally cooled valve , comprisingproviding a valve body having a valve stem that ends in a valve head,wherein the valve body has a cavity that is open toward the valve head,providing a valve base element, andclosing the cavity with the valve base element by friction welding the valve base element to the valve head,whereinthe valve base element and/or the valve body have/has an engagement structure with which the valve base element and/or the valve body are/is centrally clamped, and/or a torque is transmitted to the valve base element and/or to the valve body,and wherein thevalve base element is fabricated as a green compact or brown compact by metal powder injection molding and sintered and wherein the valve base element is provided with a cooling rib structure and/or flow-influencing structure on a surface facing the cavity.2. The method according to claim 1 , wherein the friction welding is carried out as inductive friction welding.3. The method according to claim 1 , further comprising at least partially filling the cavity with a coolant before the cavity is closed by friction welding.4. The method according to claim 1 , wherein the engagement structure is subsequently removed and/or ablated.5. The method according to claim 1 , wherein the valve base element and the valve body have a welding surface contour claim 1 , which in the friction welding operation produces a weld expulsion in the cavity in a desired shape of a cooling rib.6. The method according to claim 5 , wherein an outer portion of the weld expulsion is subsequently removed.7. An ...

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Номер записи: 92
25-03-2021 дата публикации

ROCKER ARM WITH INBOARD LOST MOTION SPRING OVER VALVE

Номер: US20210087953A1
Автор: Vance Matthew A.
Принадлежит: Eaton Intelligent Power Limited

A rocker arm can comprise a first outer arm and a second outer arm joined by a pivot body. An actuatable latch mechanism is within the pivot body. An inner arm assembly comprises a latch arm. A first spring prop is on the inner arm assembly distal from the latch arm. An axle joins the inner arm assembly to pivot between the first outer arm and the second outer arm. A spring is biased against the first outer arm and against the first spring prop. The first spring prop can comprise a hooked end. Or, the first spring prop can extend laterally out from the rocker arm and parallel to the axle. The spring can comprise a one-piece spring comprising first and second coil springs connected by a lateral connector. Or, two separate torsion springs can comprising tangential spring ends extending at approximately 90 degrees. 125-. (canceled)26. A rocker arm , comprising:a first outer arm and a second outer arm joined by a pivot body on a first end of the rocker arm and comprising a valve seat on a second end of the rocker arm;a latch mechanism configured to actuate from the pivot body;an inner arm assembly between the first outer arm and the second outer arm;an axle mounted on the second end of the rocker arm, the axle forming a pivot location for the inner arm assembly relative to the first outer arm and the second outer arm; anda lost motion spring around the axle, the lost motion spring biased against the inner arm assembly and biased against the second end.27. The rocker arm of claim 26 , further comprising a spring prop within the inner arm assembly claim 26 , wherein the lost motion spring is biased against the spring prop.28. The rocker arm of claim 27 , wherein the spring prop is biased against the valve seat.29. The rocker arm of claim 27 , wherein the inner arm assembly comprises a first inner arm and a second inner arm claim 27 , and wherein the spring prop extends from the first inner arm.30. The rocker arm of claim 27 , wherein the inner arm assembly comprises a ...

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Номер записи: 93
31-03-2016 дата публикации

Low-Cost, High-Strength Fe-Ni-Cr Alloys for High Temperature Exhaust Valve Applications

Номер: US20160090878A1
Автор: MURALIDHARAN Govindarajan
Принадлежит:

An Fe—Ni—Cr alloy is composed essentially of, in terms of wt. %: 2.4 to 3.7 Al, up to 1.05 Co, 14.8 to 15.9 Cr, 25 to 36 Fe, up to 1.2 Hf, up to 4 Mn, up to 0.6 Mo, up to 2.2 Nb, up to 1.05 Ta, 1.9 to 3.6 Ti, up to 0.08 W, up to 0.03 Zr, 0.18 to 0.27 C, up to 0.0015 N, balance Ni, wherein, in terms of atomic percent: 8.5≦Al+Ti+Zr+Hf+Ta≦11.5, 0.53≦Al÷(Al+Ti+Zr+Hf+Ta)≦0.65, and 0.16≦Cr÷(Fe+Ni+Cr+Mn)≦0.21, the alloy being essentially free of Cu, Si, and V. 2. An alloy in accordance with wherein the range of Al is 2.5 to 3.56 weight percent.3. An alloy in accordance with wherein the range of Co is up to 1.01 weight percent.4. An alloy in accordance with wherein the range of Cr is 14.93 to 15.76 weight percent.5. An alloy in accordance with wherein the range of Fe is 25.87 to 35 weight percent.6. An alloy in accordance with wherein the range of Hf is up to 1 weight percent.7. An alloy in accordance with wherein the range of Mn is up to 3.38 weight percent.8. An alloy in accordance with wherein the range of Mo is up to 0.52 weight percent.9. An alloy in accordance with wherein the range of Nb is up to 2 weight percent.10. An alloy in accordance with wherein the range of Ta is up to 1.02 weight percent.11. An alloy in accordance with wherein the range of Ti is 2 to 3.49 weight percent.12. An alloy in accordance with wherein the range of W is up to 0.06 weight percent.13. An alloy in accordance with wherein the range of Zr is up to 0.02 weight percent.14. An alloy in accordance with wherein the range of C is 0.18 to 0.24 weight percent.15. An alloy in accordance with wherein claim 1 , in terms of atomic percent claim 1 , 8.7≦Al+Ti+Zr+Hf+Ta≦11.48.16. An alloy in accordance with wherein claim 15 , in terms of atomic percent claim 15 , 9≦Al+Ti+Zr+Hf+Ta≦11.45.17. An alloy in accordance with wherein claim 1 , in terms of atomic percent claim 1 , 0.54≦Al÷(Al+Ti+Zr+Hf+Ta)≦0.64.18. An alloy in accordance with wherein claim 17 , in terms of atomic percent claim 17 , 0.55≦Al÷(Al+Ti+ ...

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Номер записи: 94
21-03-2019 дата публикации

VALVE ARRANGEMENT

Номер: US20190085792A1
Автор: Langervik Lennart, Svensson Stig Arne
Принадлежит: VOLVO TRUCK CORPORATION

A valve arrangement for supplying air to a combustion chamber of an internal combustion engine includes a first valve, the first valve including a first valve head, a first valve stem assembly and an internal cavity, which is at least partly located in the first valve stem assembly, and a second valve partly arranged within the internal cavity of the first valve, the second valve including a second valve head and a second valve stem assembly, and being movable within the internal cavity between an upper, closed position and a lower, open position, wherein a junction seal extends over a junction between the first valve stem assembly and the second valve stem assembly when the second valve is in the closed position. A leakage preventing arrangement is arranged to hinder leakage of liquid from the outside of the junction seal from reaching in between the first valve stem assembly and the second salve stem assembly. 1. A valve arrangement for supplying air to a combustion chamber of an internal combustion engine , the valve arrangement comprisinga first valve, the first valve comprising a first valve head, a first valve stem assembly and an internal cavity, which is at least partly located in the first valve stem assembly, the first valve being movable between an upper, closed position of the valve, and a lower, open position, in which open position air may be supplied to the combustion chamber past the first valve head,a second valve partly arranged within the internal cavity of the first valve, the second valve comprising a second valve head and a second valve stem assembly, and being movable within the internal cavity between an upper, closed position, in which closed position the second valve head is in contact with an inner surface of the first valve head, and a lower, open position in which open position additional air may be supplied to the combustion chamber via the internal cavity past the second valve head,a stem joining device extending between the first ...

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Номер записи: 95
30-03-2017 дата публикации

Valve actuation system

Номер: US20170089223A1
Автор: Ashwin A. Hattiangadi, Gopinath BASKARAN, Indrajith Kizhakkethara, Kevin W. Redinbo, Rong Qu
Принадлежит: Caterpillar Inc

A valve actuation system is disclosed for use with an internal combustion engine. The valve actuation system may have a rocker shaft, a rocker arm pivotally mounted on the rocker shaft, at least one cam follower and a pushrod connecting the at least one cam follower to the rocker arm. The valve actuation system may also have a plurality of gas exchange valves, and a bridge connecting the rocker arm to the valves. The valve actuation system may further have at least one spring disposed around each of the valves and configured to bias each of the valves toward closed positions, and a rotocoil configured to rotatably connect the at least one spring to each of the valves. The rotocoil may have an internal chamfer at a bridge end with an angle of about 26-28°. The at least one spring may have an assembled load of about 750-850 N.

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Номер записи: 96
30-03-2017 дата публикации

VALVE SEAT OF SINTERED IRON-BASED ALLOY

Номер: US20170089228A1
Автор: HENMI Hiroji, SHIMADA Akiko
Принадлежит: Kabushiki Kaisha Riken

The present invention provides a valve seat of a Co-free, sintered iron-based alloy having excellent heat resistance, oxidation resistance and wear resistance, as well as excellent machinability, which is usable for internal combustion engines using a gas fuel. The valve seat is produced by using a prealloy containing 12% or more by mass of Cr in a matrix for, and hard particles having high strength and hardness at high temperatures are used, such that the entire valve seat has a composition comprising by mass 5.0-20.0% of Cr, 0.4-2.0% of Si, 2.0-6.0% of Ni, 5.0-25.0% of Mo, 0.1-5.0% of W, 0.5-5.0% of V, 1.0% or less of Nb, and 0.5-1.5% of C, the balance being Fe and inevitable impurities. 1. A valve seat of a sintered iron-based alloy having hard particles dispersed in a matrix , said valve seat having a composition comprising as a whole by mass 5.0-20.0% of Cr , 0.4-2.0% of Si , 2.0-6.0% of Ni , 5.0-25.0% of Mo , 0.1-5.0% of W , 0.5-5.0% of V , 1.0% or less of Nb , and 0.5-1.5% of C , the balance being Fe and inevitable impurities.2. The valve seat of a sintered iron-based alloy according to claim 1 , wherein said hard particles are Fe—Mo—Si alloy particles comprising by mass 40.0-70.0% of Mo claim 1 , 0.4-2.0% of Si claim 1 , and 0.1% or less of C claim 1 , the balance being Fe and inevitable impurities.3. The valve seat of a sintered iron-based alloy according to claim 1 , whose sliding surface has a Cr oxide film.4. The valve seat of a sintered iron-based alloy according to claim 1 , wherein said matrix comprises a martensite or sorbite phase.5. The valve seat of a sintered iron-based alloy according to claim 1 , wherein said matrix contains secondary carbides of one or more of Cr claim 1 , Mo claim 1 , W claim 1 , V claim 1 , Nb and Fe.6. The valve seat of a sintered iron-based alloy according to claim 1 , in which 0.5-3% by mass of MnS particles are dispersed.7. A method for producing the valve seat of a sintered iron-based alloy according to claim 1 , ...

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Номер записи: 97
30-03-2017 дата публикации

System for engine valve actuation comprising lash-prevention valve actuation motion

Номер: US20170089232A1
Автор: DONG Yang, Justin D. Baltrucki, Peter JO
Принадлежит: Jacobs Vehicle Systems Inc

A system for actuating engine valve comprises a main valve actuation motion source configured to supply main valve actuation motions to the at least one engine valve via a main motion load path, and an auxiliary valve actuation motion source separate from the main valve actuation motion source and configured to supply complementary auxiliary valve actuation motions to the at least one engine valve via an auxiliary motion load path. A lost motion component is configured, in one state, to maintain lash between the auxiliary valve actuation motion source and the auxiliary motion load path or within the auxiliary motion load path and, in another state, to take up this lash. The auxiliary valve actuation motion source is further configured to supply at least one lash-prevention valve actuation motion that substantially matches at least one of the main valve actuation motions.

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Номер записи: 98
30-03-2017 дата публикации

Method and apparatus for reducing emissions and/or reducing friction in an internal combustion engine

Номер: US20170089241A1
Автор: James P. Golding, Shawn E. Dolan
Принадлежит: Henkel AG and Co KGaA

A method and apparatus for reducing at least one of HC, CO, and NO x , emissions from an operating internal combustion engine fueled by hydrocarbon or similar fuels, such as alcohols, wherein a portion of the internal combustion chamber has aluminum and/or titanium containing surfaces coated with a titanium dioxide coating further comprising a dopant in and/or on the adherent titanium dioxide coating.

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Номер записи: 99
07-04-2016 дата публикации

Nitrided Engine Valve with HVOF Coating

Номер: US20160097459A1
Автор: Daniel Sordelet, Mark Veliz
Принадлежит: Caterpillar Inc

A valve for use in an internal combustion engine is disclosed. The valve includes a stem connected to a fillet disposed between the stem and a seat face. A thermal spray technique, such as a high velocity oxy fuel coating spray (HVOF) is applied to the seat face. A nitriding treatment that includes a nitrogen source, which may or may not contain carbon, and heat may be applied after the HVOF spray. The heat allows the nitrogen and/or carbon to penetrate the HVOF layer and the seat face to form a compound zone. The compound zone enhances the wear resistance of the surface during engine operation.

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Номер записи: 100