СПОСОБ И УСТРОЙСТВО ДЛЯ МОКРОЙ ОЧИСТКИ СОПЛОВОГО КОЛЬЦА РАБОТАЮЩЕЙ НА ВЫХЛОПНОМ ГАЗЕ ТУРБИНЫ ГАЗОТУРБОНАГНЕТАТЕЛЯ (ВАРИАНТЫ)

Способ и варианты устройства для мокрой очистки соплового кольца работающей на выхлопном газе турбины газотурбонагнетателя. При реализации способа после определения необходимости очистки соплового кольца газотурбонагнетателя запускают автоматически протекающий цикл очистки, при котором воду несколько раз в течение короткого времени впрыскивают в зону перед сопловым кольцом и между впрысками выдерживают паузу для повторного нагрева соплового кольца. Устройства для реализации способа в зоне перед сопловым кольцом газотурбонагнетателя содержат радиальные отверстия с установленными в них форсунками, соединенными через соответствующие линии с подводящей линией для воды. Между измерительным звеном, регистрирующим изменения состояния выхлопных газов двигателя, и находящимся в подводящей линии исполнительным звеном расположен управляющий элемент. Изобретения позволяют улучшить очистку соплового кольца газотурбонагнетателя при использовании меньших количеств воды и при меньшем снижении мощности ...

ВЫХЛОПНОЙ ТРАКТ ДЛЯ ДВИГАТЕЛЯ ВНУТРЕННЕГО СГОРАНИЯ

Изобретение может быть использовано в двигателях внутреннего сгорания. Выхлопной тракт для двигателя внутреннего сгорания имеет расположенную в выхлопном тракте газовыпускную турбину (3) газотурбонагнетателя. Газовыпускная турбина (3) имеет проточный канал (17) турбины и вестгейт (11). В канал (17) втекает поток (9) выхлопных газов, поступающий от двигателя внутреннего сгорания. В канале (17) расположено приводимое в движение потоком (9) выхлопных газов турбинное колесо (19). Вестгейт (11) обеспечивает возможность направления части втекающего в газовыпускную турбину (3) потока (9) выхлопных газов в качестве потока (15) выхлопных газов вестгейта мимо турбинного колеса (19). Устьевое пространство (57) газовыпускной турбины разделено на первую (21) и вторую (27) области втекания потока выхлопных газов турбины. В первую область (21) втекает поток (13) выхлопных газов от турбинного колеса (19). К первой области присоединен отводящий канал (23). Вторая область (27) аэродинамически отделена от ...

СПОСОБ (ВАРИАНТЫ) И СИСТЕМА ДЛЯ ДВИГАТЕЛЯ

Изобретение относится к двигателестроению. Способ для двигателя (10) содержит следующие шаги: выявляют событие помпажа компрессора (122, 132) двигателя, исходя из частотного спектра датчика (173) давления на входе дросселя (158), установленного ниже по потоку от компрессора (122, 132). Адаптируют линию помпажа на карте характеристик компрессора (122, 132), хранимой в контроллере (12) двигателя, исходя из коэффициента повышения давления компрессора (122, 132) и скорректированного потока через компрессор (122, 132) во время события помпажа. Также раскрыты вариант способа для двигателя и система для двигателя. Технический результат заключается в повышении точности калибровки линии помпажа. 3 н. и 17 з.п. ф-лы, 6 ил.

СИЛОВАЯ УСТАНОВКА С ДВИГАТЕЛЕМ ВНУТРЕННЕГО СГОРАНИЯ С НАДДУВОМ

Изобретение относится к транспортному средству или стационарной силовой установке, содержащей двигатель внутреннего сгорания с наддувом, обеспечиваемым от работающего на отработавших газах турбокомпрессора, в качестве приводного источника, и компоненты, снабжаемые теплом от среды, находящейся в замкнутом контуре среды. Турбина (4) работающего на отработавших газах турбокомпрессора (2) используется и/или выполнена в качестве источника нагрева, и для этого на корпусе (10) турбины снаружи расположен теплообменник (12), который находится в контуре (3, 3') среды или выполнен с возможностью включения в него, и во внутреннем пространстве (13) которого нагревается пропускаемая непосредственно или по каналам среда за счет использования, по меньшей мере, излучаемой тепловой энергии горячего корпуса (10) турбины. Изобретение обеспечивает использование теплового излучения наружной стенки корпуса турбины для быстрого и достаточно сильного нагревания проходящей через теплообменник (12) среды. 24 з.п.

УЗЕЛ ТУРБОМАШИНЫ

Изобретение относится к узлу турбомашины, в частности к интегральному узлу турбокомпрессора-турбодетандера. Узел турбомашины содержит: вал, радиальный газовый детандер, удерживаемый на валу между первым и вторым подшипником и компрессор, удерживаемый на валу в консольном положении рядом с одним из упомянутых подшипников, при этом компрессор содержит множество подвижных входных сопел, а радиальный газовый детандер содержит множество подвижных направляющих лопаток. Изобретение направлено на повышение производительности установки. 9 з.п. ф-лы, 3 ил.

ТУРБОКОМПРЕССОР ДЛЯ ТРАНСПОРТНОГО СРЕДСТВА

Изобретение относится к системам извлечения энергии, а более конкретно к устройству, повышающему эффективность системы извлечения энергии. Устройство (192) содержит впускной патрубок (200), воздухозаборник (204), по меньшей мере, одну поверхность, имеющую профиль (54) Коанда. Впускной патрубок (200) выполнен с возможностью направления потока (202) отходящего газа в устройство (192). Воздухозаборник (204) выполнен с возможностью введения потока (206) воздуха в устройство (192). Поверхность, имеющая профиль (54) Коанда, выполнена с возможностью захвата поступающего воздуха (206) посредством потока (202) отходящего газа для создания высокоскоростного потока (208) воздуха. Устройство (192) может быть выполнено с возможностью захвата массы поступающего воздуха (206) по отношению к массе потока (200) отходящего газа в отношении от около 5 до около 22. Профиль Коанда может представлять собой логарифмический профиль. Также в изобретении представлен турбокомпрессор (196) для двигателя внутреннего ...

СИСТЕМА ПОДАЧИ ДОБАВКИ К ВЫХЛОПНЫМ ГАЗАМ, ВКЛЮЧАЮЩАЯ УСТРОЙСТВО РАСПРЕДЕЛЕНИЯ ДОБАВКИ К ВЫХЛОПНЫМ ГАЗАМ И УСТРОЙСТВО ДОЗИРОВАНИЯ ДОБАВКИ К ВЫХЛОПНЫМ ГАЗАМ

Настоящее изобретение относится к системе подачи для турбины (6) турбокомпрессора выхлопной системы двигателя (2) внутреннего сгорания, причем система подачи включает распределительное устройство (24) и дозирующее устройство (26). Распределительное устройство (24) включает приемную поверхность (40, 46, 54) и по меньшей мере одну распределительную поверхность(-ти) (42, 48, 56). Приемная поверхность (40, 46, 54) предназначена для приема добавки к выхлопным газам, подаваемой в распределительное устройство (24). Распределительная поверхность (42, 48, 56) находится в сообщении по текучей среде с приемной поверхностью (40, 46, 54) и выполнена для распределения добавки к выхлопным газам в потоке выхлопных газов, проходящем через турбину турбокомпрессора, в результате вращательного движения распределительного устройства (24). Распределительное устройство (24) прочно присоединено к валу (20) или ступице турбины (6) турбокомпрессора. Дозирующее устройство (26) включает подводящий канал (28), дозировочный ...

СИСТЕМА ДЛЯ КОМПРЕССОРА ТУРБОНАГНЕТАТЕЛЯ (ВАРИАНТЫ)

1. Система для компрессора турбонагнетателя, содержащая:приводимый в движение кольцеобразный диск, содержащий дроссельные отверстия в нем;наружный кольцеобразный диск, содержащий дроссельные отверстия в нем; ипривод для поворачивания приводимого в движение кольцеобразного диска относительно наружного кольцеобразного диска, чтобы менять совмещение дроссельных отверстий приводимого в движение кольцеобразного диска и наружного кольцеобразного диска.2. Система по п. 1, в которой каждое из дроссельных отверстий расположено смежно впуску дроссельного канала, открытого к впуску компрессора, когда дроссельные отверстия совмещены, при этом выпуск дроссельного канала находится в сообщении по текучей среде с крыльчаткой в положении ниже по потоку от передней кромки разделяющих лопастей и передней кромки полных лопастей крыльчатки.3. Система по п. 2, дополнительно содержащая стравливающий канал, выпуск которого постоянно открыт к впуску компрессора, и впуск которого находится в сообщении по текучей среде с крыльчаткой выше по потоку от передней кромки разделяющих лопастей и ниже по потоку от передней кромки полных лопастей.4. Система по п. 3, в которой стравливающий канал расположен аксиально внутри дроссельного канала.5. Система по п. 1, в которой привод является вакуумным приводом.6. Система по п. 1, дополнительно содержащая контроллер двигателя с командами, хранимыми в нем, для управления приводом на основании условий работы компрессора турбонагнетателя.7. Система по п. 1, в которой наружный кольцеобразный диск содержит вставную часть на своей внутренней окружности, причем периферия вставной части совмещена с вне� РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 150 653 U1 (51) МПК F02B 37/12 (2006.01) F02D 23/00 (2006.01) F04B 39/08 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ТИТУЛЬНЫЙ (21)(22) Заявка: ЛИСТ ОПИСАНИЯ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ 2014125533/06, 24.06.2014 (24) Дата начала отсчета срока действия патента: 24.06.2014 Приоритет(ы): (30) Конвенционный ...

МНОГОСТУПЕНЧАТЫЙ ТУРБОКОМПРЕССОР ДВИГАТЕЛЯ ВНУТРЕННЕГО СГОРАНИЯ

Полезная модель может быть использована при создании новых и форсировании существующих двигателей внутреннего сгорания с использованием энергии выхлопных газов этих двигателей для приводов турбокомпрессоров. Выхлопные газы по касательной воздействуют на серповидные лопатки первого турбинного колеса, в профиле лопаток выхлопные газы изменяют направление своего движения почти на 180°, вращают первое колесо турбины, при выходе из серповидных лопаток первого колеса турбины выхлопные газы в противоположном первоначальному направлению воздействуют по касательной на серповидные лопатки второго колеса турбины, в серповидном профиле лопаток второго колеса турбины газы вновь изменяют направление своего движения почти на 180° и удаляются из корпуса турбин.Воздействие выхлопных газов на лопатки турбин приводит их во вращение в противоположных друг другу направлениях, через соосные валы колеса турбин приводят во встречное вращение колеса компрессора, лопатки которых своими профилями сжимают воздух и ...

СИСТЕМА ТУРБОНАДДУВА ДИЗЕЛЯ С РЕЦИРКУЛЯЦИЕЙ ГАЗОВ ЧЕРЕЗ ТУРБИНУ

Система турбонаддува дизеля, содержащего рабочие цилиндры 1 дизеля, содержит каналы 2 для выпуска газов из цилиндров 1 в коллектор 3 выпускных газов, коллектор 3 выпускных газов дизеля, газовую турбину 4 турбокомпрессора, канал 5 отвода газов после турбины в атмосферу, воздушный компрессор 6 турбокомпрессора, приводимый в работу от газовой турбины 4 с помощью механической передачи 7, охладитель 8 наддувочного воздуха, воздушный ресивер 9, из которого воздух подается в рабочие цилиндры дизеля. При этом в каждом из каналов 2 для выпуска газов из рабочих цилиндров 1 дизеля в коллектор 3 выпускных газов расположены эжекторы 10, работающие на энергии периодических импульсов движения выпускных газов во время интенсивного выпуска газов из цилиндров дизеля. Система также содержит каналы 11, соединяющие выпуск газов из турбины 4 турбокомпрессора с всасывающими полостями указанных эжекторов 10. Система турбонаддува обеспечивает более полное использование импульсной энергии движения выпускных газов ...

ТУРБОНАГНЕТАТЕЛЬ И СИСТЕМА МОТОРНОГО ТРАНСПОРТНОГО СРЕДСТВА

... 1. Турбонагнетатель моторного транспортного средства, содержащий:турбину, имеющую регулятор давления наддува с тарелкой клапана, подогнанной к седлу клапана, при этом тарелка клапана удерживается на одном конце рычага привода;упругую прокладку, расположенную в зазоре теплового расширения в контакте с тарелкой клапана и рычагом привода, при этом прокладка является частично сжимаемой, когда тарелка клапана приподнята с седла клапана, и поддерживает первую возвращающую силу между тарелкой клапана и рычагом привода, причем прокладка сжимается в большей степени, когда тарелка клапана посажена, и поддерживает вторую, большую возвращающую силу между тарелкой клапана и рычагом привода; икомпрессор, механически присоединенный к турбине.2. Турбонагнетатель по п.1, в котором сила, прикладываемая через рычаг привода, обратимо сажает тарелку клапана в седло клапана, при этом упругая прокладка является сжимаемой такой силой, так что тарелка клапана приближается к рычагу привода, когда тарелка клапана ...

КОМПРЕССОРНОЕ КОЛЕСО С УСТРАНЕНИЕМ ДИСБАЛАНСА И ПОЗИТИВНЫМ РЕГУЛИРОВАНИЕМ

... 1. Турбонагнетатель, содержащий:турбинное колесо (10);вал (111), прикрепленный к турбинному колесу (10);компрессорное колесо (132), расположенное на вале (111) напротив турбинного колеса (10), причем компрессорное колесо (132) включает заднюю стенку (134) и осевое отверстие (137); инаправляющую шайбу (150), размещенную смежно с задней стенкой (134) компрессорного колеса, включающую внутренний диаметр (162), наружный диаметр (160) и конусовидное направляющее кольцо (154), которое проходит в осевое отверстие (137).2. Турбонагнетатель по п. 1, отличающийся тем, что компрессорное колесо (132) включает фаску (138), размеры и конфигурация которой предназначены принимать конусовидное направляющее кольцо (154).3. Турбонагнетатель по п. 2, отличающийся тем, направляющая шайба (150) включает прорезь (164), проходящую от внутреннего диаметра (162) к наружному диаметру (160).4. Турбонагнетатель по п. 3, дополнительно содержащий гайку (113), навинченную на вал (111) и способную обеспечивать осевое сжимающее ...

РОТОРНАЯ МАШИНА, СОДЕРЖАЩАЯ РОТОР С КОМПОЗИТНЫМ РАБОЧИМ КОЛЕСОМ И МЕТАЛЛИЧЕСКИМ ВАЛОМ

... 1. Роторная машина, содержащая статор и ротор, выполненный с возможностью вращения относительно статора и имеющий металлический вал, композитное рабочее колесо и по меньшей мере первое металлическое кольцо, закрепляющее композитное рабочее колесо на указанном металлическом валу, причем металлическое кольцо имеет первую поверхность взаимодействия с композитным рабочим колесом и вторую поверхность взаимодействия с металлическим валом.2. Роторная машина по п. 1, в которой сила, прикладываемая металлическим кольцом к композитному рабочему колесу, обеспечивает предотвращение перемещения между композитным рабочим колесом и металлическим валом.3. Роторная машина по п. 1, в которой сила, прикладываемая металлическим кольцом к указанному валу, обеспечивает предотвращение перемещения между металлическим кольцом и металлическим валом.4. Роторная машина по п. 1, в которой указанное по меньшей мере первое металлическое кольцо расположено с первой стороны композитного рабочего колеса, а со второй стороны ...

СНИЖЕНИЕ НАГРУЗКИ ОТ ОСЕВОГО УСИЛИЯ В ТУРБОКОМПРЕССОРЕ

УЗЕЛ ТУРБОМАШИНЫ

СПОСОБ И УСТРОЙСТВО ДЛЯ СОВМЕЩЕНИЯ РАДИАЛЬНОЙ ТУРБИНЫ ТУРБОНАГНЕТАТЕЛЯ С ДВИГАТЕЛЕМ ВНУТРЕННЕГО СГОРАНИЯ

Задачей изобретения является создание способа и устройства для совмещения радиальной турбины турбонагнетателя с соответствующим двигателем внутреннего сгорания, основанных на относительно скромных расходах материала, рабочего времени и недорогих по стоимости. Это достигается путем замены деталей радиальной турбины исключительно на стороне выхода газа. Для этого происходит сначала укорачивание лопаток 5 рабочего колеса 6 и затем соответствующее сужение пропускного канала 7, расположенного между ступицей 8 рабочего колеса 6 и выпускным фланцем 9. Затем устанавливается другой, больший по размеру выпускной фланец 9. Для этого выпускной фланец 9, укрепленный на впускной камере, делают легко отвинчиваемым.

СПОСОБ УПРАВЛЕНИЯ ПЕРЕПУСКНЫМ КЛАПАНОМ И УПРАВЛЯЮЩЕЕ УСТРОЙСТВО

ТОРМОЗНОЕ УСТРОЙСТВО ДЛЯ ТУРБОКОМПРЕССОРА

... 1. Турбокомпрессор для наддува двигателя, содержащийповоротный вал,один или несколько тормозных роторов с постоянными магнитами, выполненных с возможностью вращения их поворотным валом;один или несколько тормозных статоров, расположенных относительно одного или нескольких тормозных роторов таким образом, чтобы вращение поворотного вала создавало вихревые токи в одном или нескольких тормозных статорах для извлечения энергии из поворотного вала, а такжеконтроллер, выполненный с возможностью получения входного параметра, на основании которого, осуществляется регулировка расстояния между одним или несколькими тормозными роторами и одним или нескольким тормозными статорами для изменения уровня создания вихревых токов и, тем самым, управления торможением поворотного вала.2. Турбокомпрессор для наддува двигателя, содержащий:поворотный вал;один или несколько тормозных роторов, выполненных с возможностью вращения их поворотным валом,один или несколько магнитных тормозных статоров, расположенных ...

УПРОЩЕННЫЙ ТУРБОНАГНЕТАТЕЛЬ С ИЗМЕНЯЕМОЙ ГЕОМЕТРИЕЙ С УВЕЛИЧЕННЫМ ДИАПАЗОНОМ ПОТОКА

... 1. Турбонагнетатель с регулируемым потоком, содержащий:(a) корпус (2) турбины, имеющий впускную часть турбины в основании (51) корпуса турбины, предназначенном для подключения к коллектору отработавших газов для приема потока отработавших газов, часть эксдюсера (52) турбины и камеру улитки между основанием корпуса турбины и частью эксдюсера;(b) турбинное колесо (70), имеющее несколько лопастей, расположенное внутри указанного корпуса турбины, для приема потока отработавших газов из камеры улитки;(c) по меньшей мере одну разделительную стенку улитки для разделения камеры улитки на большую камеру (48) улитки и меньшую камеру (49) улитки; и(d) клапанное средство регулирования потока отработавших газов, предназначенное для регулирования степени блокирования отработавших газов, втекающих в большую камеру улитки.2. Турбонагнетатель с регулируемым потоком по п.1, отличающийся тем, что указанное клапанное средство регулирования потока отработавших газов является регулируемым.3. Турбонагнетатель ...

ВСТАВКА ДЛЯ ТУРБОКОМПРЕССОРА

СПОСОБ СЪЕМА ПРИПУСКА НА БАЛАНСИРОВКУ ТУРБИННОГО КОЛЕСА

... 1. Турбинное колесо (10) для турбонагнетателя, содержащее:ступицу (12), проходящую в осевом направлении между передней частью (14) и задней стенкой (22), причем указанная задняя стенка (22) содержит периферийную кромку (20), при этом указанная ступица (12) образует ось вращения (28), проходящую в указанном осевом направлении;несколько лопаток (26) турбины, соединенных с указанной ступицей (12) и расположенных в направлении вдоль окружности обычно с равными интервалами вокруг указанной оси (28) вращения; ипо меньшей мере один дугообразный вырез (44, 48), выполненный на указанной периферийной кромке (20) указанной задней стенки (22) для балансировки указанного турбинного колеса (10), причем по меньшей мере один дугообразный вырез (44, 48) расположен вдоль указанной периферийной кромки (20) так, что указанная периферийная кромка (20) не симметрична в указанном направлении вдоль окружности вокруг указанной оси (28) вращения.2. Турбинное колесо (10) по п. 1, отличающееся тем, что указанный по ...

ТРАНСПОРТНОЕ СРЕДСТВО ИЛИ СТАЦИОНАРНАЯ СИЛОВАЯ УСТАНОВКА С ДВИГАТЕЛЕМ ВНУТРЕННЕГО СГОРАНИЯ С НАДДУВОМ В КАЧЕСТВЕ ПРИВОДНОГО ИСТОЧНИКА

... 1. Силовая установка, содержащая двигатель (1) внутреннего сгорания с наддувом, обеспечиваемым посредством работающего на отработавших газах турбокомпрессора (2), в качестве приводного источника привода и компоненты, снабжаемые теплом от среды, находящейся в замкнутом контуре (3, 3'), отличающаяся тем, что турбина (4) работающего на отработавших газах турбокомпрессора (2) используется и/или выполнена в качестве источника нагрева, и для этого на корпусе (10) турбины снаружи расположен теплообменник (12), который находится в контуре (3, 3') среды или выполнен с возможностью включения в него и во внутреннем пространстве (13) которого нагревается пропускаемая непосредственно или по каналам среда за счет использования, по меньшей мере, излучаемой тепловой энергии горячего корпуса (10) турбины. 2. Силовая установка по п.1, отличающаяся тем, что при пропускании подлежащей нагреванию среды через теплообменник (12) по каналам или трубам дополнительно предусмотрена подача во внутреннее пространство ...

КРЫШКА КОМПРЕССОРА ДЛЯ ТУРБОНАГНЕТАТЕЛЕЙ

... 1. Турбонагнетатель, содержащий крыльчатку (14) компрессора и турбинное колесо, соединенные посредством вращающегося вала (20), при этом улучшение включает корпус (16) компрессора с геометрией рециркуляции, содержащий:часть (40) основания улитки, функционально граничащую с крыльчаткой (14) компрессора;контур (42), который охватывает и комплементарно совпадает с крыльчаткой (14) компрессора;индуктор (44), содержащий кольцо (50) и выступающие элементы (52);входную область (46), проходящую от части (40) основания улитки; иполость (60) рециркуляции, образованную в части (40) основания улитки и входной области (46) с щелью (70) рециркуляции и щелью (72) входа для возвращения потока воздуха во входную область (46);при этом сходящаяся стенка (54) входной области (46) расположена на одном уровне с внутренней поверхностью (56) кольца (50) индуктора (44).2. Турбонагнетатель по п. 1, отличающийся тем, что запас по помпажу улучшен за счет обеспечения возможности отведения потока воздуха с края крыльчатки ...

Турбокомпрессор

Выпускной коллектор двигателя внутреннего сгорания

... 1. ВЫПУСКНОЙ КОЛЛЕКТОР . ДВИГАТЕЛЯ ВНУТРЕННЕГО СГОРАНИЯ с наццувом и по меньшей мере с четырьмя рядными даншнпрами, соцержащий цилиндрический корпус с выкодным концом, сообщенным с турбиной агрегата надцува и с выкоаны -га патрубками, размешенными на его боковой части и сообщёнными с каждым из цининдров., причем поперечное сечение патрубков со стороны коппектора меньше его поперечного сечения со стороны ципиндров, отличающийся тем, что, с цепью повышения КПД двигателя путем увеличения эжекционного эффекта и уокорения истечения газов в выпускной коллектор, корпус выполнен постоянного диаметра, отношение площади поперечного сечения патрубков со стороны g коллектора к поперечному сечению со СО стороны цилиндров составляет 0,3-0,8 преимущественно 0,4-0,5. 00 о СП 05 ...

Turbine for use in supercharger of e.g. diesel engine of motor vehicle, has spiral segments are one behind other, where equation related to segments describes relation between passage area, cross-sections, angles and exponent

The turbine (10) has a turbine housing (12) comprising a receiving space (14), and a turbine wheel (16) rotatable around a rotational axis (18). Two spiral segments (20, 22) are arranged one behind the other in a circumferential direction. Spiral inlet cross-sections (Asa0, Asb0) of the segments are arranged at an initial angle (psiB0). Ends of the segments are arranged at a final angle (psiBE). An equation related to the segments describes a relation between a passage area of the segments, the cross-sections, the initial and final angles and an exponent that amounts to 2.

Abgasturbolader

Turbolader mit variabler Turbinengeometrie

TURBOLADER MIT VERSTELLGEOMETRIE

Ein Turbolader mit Verstellgeometrie (VGT) ist geliefert. Der VGT enthält einen Verstellring, der eine Vielzahl von Leitschaufeln dreht, die in einem Düsenring angeordnet sind, und einen Mechanismus zum Verhindern eines Absackens. Der Mechanismus zum Verhindern eines Absackens ist installiert, um den Verstellring in einer Richtung entgegen einer Richtung zu lagern, in die ein Eigengewicht des Verstellringes wirkt. Insbesondere enthält der Mechanismus zum Verhindern eines Absackens eine Stützrolle, die zum Bereitstellen eines elastischen Drucks auf einer äußeren Umfangsfläche des Verstellringes in Wälzkontakt mit demselben installiert ist.

Abgasturbolader und Brennkraftmaschine

Ein Abgasturbolader mit einer Turbine (22) und einem einen Trimsteller (16) umfassenden Verdichter (14) ist dadurch gekennzeichnet, dass die Turbine (22) mittels einer VTG-Vorrichtung (24) und/oder eines Wastegates (26) regelbar ist.

Verdichter, Abgasturbolader und Brennkraftmaschine

Ein Verdichter (14) mit einem Verdichtergehäuse (38) und einem innerhalb eines Strömungsraums des Verdichtergehäuses (38) drehbar gelagerten Verdichterlaufrad (36), das den Strömungsraum in einen Niederdruckraum (44) und einen Hochdruckraum (48) unterteilt, wobei das Verdichtergehäuse (38) eine das Verdichterlaufrad (36) zwischen dessen Eintrittskanten (56) und dessen Austrittskanten (58) radial umgebende, von diesem über einen Laufradspalt (64) beabstandete erste Gehäusewand (60) sowie eine der ersten Gehäusewand (60) bezüglich der Axialrichtung des Verdichterlaufrads (36) gegenüberliegende zweite Gehäusewand (78) ausbildet, und wobei sich die erste Gehäusewand (60) in einem von dem Übergang von dem Laufradspalt (64) zu dem Hochdruckraum (48) ausgehenden Eintrittsabschnitt (80) des Hochdruckraums (48) so weit in Richtung der zweiten Gehäusewand (78) erstreckt, dass die erste Gehäusewand (60) die Austrittskanten (58) des Verdichterlaufrads (36) teilweise überdeckt, ist dadurch gekennzeichnet ...

Turbine housing for turbocharger, has contour component that is provided with sealing contour realized as cast portion or forging device welded to neighboring housing portions

The turbine housing (1) has interconnected housing portions. The contour area of the turbine housing is used to form a contour component (6). The contour component is provided with a sealing contour (9) realized as a cast portion or forging device welded to neighboring housing portions. The thickness of the contour component is greater than the thickness of neighboring housing portions.

MOTORBAUGRUPPE MIT TURBOLADER

Ein Turbolader weist ein Gehäuse, ein erstes Rotorrad, ein zweites Rotorrad, eine Antriebswelle, ein erstes Lager und ein zweites Lager auf. Das Gehäuse definiert einen ersten Bereich, einen zweiten Bereich, einen Ansauglufteinlass, einen Ansaugluftauslass und einen Abgaseinlass. Das erste Rotorrad ist in dem ersten Bereich platziert, und das zweite Rotorrad ist in dem zweiten Bereich platziert. Das erste Lager ist an einer ersten axialen Seite des ersten Rotorrades axial zwischen dem ersten und zweiten Rotorrad platziert und trägt die Antriebswelle zur Rotation relativ zu dem Gehäuse. Das zweite Lager ist an einer zweiten axialen Seite des ersten Rotorrades platziert und trägt das erste Rotorrad zur Rotation relativ zu dem Gehäuse.

Vorverdichtungs- und Abgassystem

Bei einer beispielhaften Ausführungsform eines Abgassystems umfasst das System einen Auspuffkrümmer, der in Fluidverbindung mit einem Verbrennungsmotor steht, und eine Vorverdichtungseinrichtung, die in Fluidverbindung mit dem Auspuffkrümmer steht, wobei die Vorverdichtungseinrichtung ein Gehäuse aufweist. Das System umfasst ferner eine Strömungssteuereinrichtung, um die Fluidverbindung zwischen der Vorverdichtungseinrichtung und einem katalytischen Substrat zu steuern und um die Fluidverbindung zwischen dem Auspuffkrümmer und dem katalytischen Substrat zu steuern.

Exhaust gas turbocharger for passenger motor car, has adjustable shaft operatively connected with drive device over worm gears, where worm gears are commonly arranged in sections with shaft bearings of bearing shaft in storage chamber

The turbocharger (1) has a turbine (2) comprising a turbine wheel and a guide vane adjusted by an adjustable shaft. The adjustable shaft is operatively connected with a drive device (12) i.e. electromotor, over worm gears. The worm gears are commonly arranged in sections with shaft bearings of a running wheel bearing shaft in a common storage chamber i.e. oil chamber. The running wheel bearing shaft is operatively connected with the turbine wheel. A worm wheel and a worm of the worm gears are arranged in the common storage chamber.

SCHWINGSCHAUFELKONZEPT FÜR VNT-TURBOLADER

Durch Gasdruck vorgespanntes Abdichtverfahren für eine Betätigungswelle

Die Neigung für eine Gasleckage um eine Welle herum, die sich durch eine Bohrung erstreckt, die Volumen unterschiedlicher Drücke verbindet, z. B. ein Turboladerturbinengehäuse und die Umgebungsluft, wird durch den Zusatz eines Paars von Abdichtringen minimiert, die durch einen Gasdruck vorgespannt werden, um eine durchgehende Gas- und Rußabdichtung bereitzustellen.

Turboladerlagergehäuse mit integriertem Wärmschutzschild

Es werden ein System und ein Verfahren bereitgestellt, in denen ein Turbolader eine Wärmeschutzschildwand enthält, die zusammen mit dem Lagergehäuse als eine einheitliche Struktur gebildet ist. Die Wand kann von einem Hauptkörperabschnitt des Lagergehäuses in einer Richtung allgemein radial nach außen verlaufen. Die Wand kann von dem Hauptkörper beabstandet und durch mehrere Rippen in der Weise angebracht sein, dass dazwischen Kammern definiert sind. Ein Umfangskanal kann durch das Lagergehäuse verlaufen, um die Fluidverbindung zwischen den Kammern und dem Außenraum des Lagergehäuses zu ermöglichen. Auf diese Weise ist ein Fluidauslass aus den Kammern vorgesehen. Im Ergebnis einer solchen Anordnung ist die Notwendigkeit eines getrennten Wärmeschutzschilds beseitigt, was den Montageprozess und spezielle Anbringungsverfahren im Zusammenhang mit einem getrennten Wärmeschutzschild erleichtern kann.

Turbolader

Die vorliegende Erfindung betrifft einen Turbolader (1) mit variabler Turbinengeometrie (VTG) mit einem Turbinengehäuse (2) mit einem Zuführkanal (9) für Abgase; mit einem Turbinenrotor (4), der drehbar im Turbinengehäuse (2) gelagert ist; und mit einem Leitgitter (18), das den Turbinenrotor (4) radial außen umgibt, das einen Schaufellagerring (6) aufweist, das eine Mehrzahl von Leitschaufeln (7) aufweist, die jeweils eine im Schaufellagerring (6) gelagerte Schaufelwelle (8) aufweisen, das einen Verstellring (5) aufweist, der mit den Leitschaufeln (7) über zugeordnete, an den Schaufelwellen (8) an einem ihrer Enden befestigte Schaufelhebel (20) in Wirkverbindung steht, wobei jeder Schaufelhebel (20) am anderen Ende einen Hebelkopf (23) aufweist, der mit einer zugeordneten Eingriffsausnehmung (24) des Verstellrings (5) in Eingriff bringbar ist, und das eine Lagerung (28) zur Fixierung des Verstellringes (5) am Schaufellagerring (6) aufweist, wobei die Lagerung (28) als Gleitlagerung ausgebildet ...

Abgasturbolader

Die Erfindung bezieht sich auf einen Abgasturbolader (1) mit einer Wastegate-Anordnung (5), bei der die baulichen Anpassungsmöglichkeiten für verschiedene Einbaufälle und die Dichtigkeit der Wastegate-Anordnung (5) verbessert wird. Der Abgasturbolader umfasst einen Verdichter (2), eine Turbine (3), die ein Turbinengehäuse (16) mit einer Spirale (15) aufweist und die über einen sich entlang einer Laderachse (L) erstreckenden Rotor (4) mit dem Verdichter (2) verbunden ist, und eine Wastegate-Anordnung (5) der Turbine (3). Die Wastegate-Anordnung (5) weist eine Steuerdose (6), eine durch die Steuerdose (6) bewegbare Regelstange (7), einen Hebel (8), der über ein Führungsstück (9) mit der Regelstange (7) verbunden ist, und eine Spindelwelle (10) auf, die an einem Ende mit dem Hebel (8) und am anderen Ende mit einer Spindel (11) verbunden ist, die einen Klappenteller (12) zum Öffnen und Schließen einer Bypassöffnung (13) trägt. Die Spindelwelle (10) ist hierbei im Wesentlichen parallel zur Laderachse ...

Abgasturbolader

Die Erfindung betrifft einen Abgasturbolader (1) umfassend ein Lagergehäuse (2), eine im Lagergehäuse 2 gelagerte Welle (3), ein auf der Welle (3) angeordnetes Verdichterrad (5) und ein auf der Welle (3) angeordnetes Turbinenrad (4), ein das Verdichterrad (5) oder das Turbinenrad (4) umschließendes Gehäusebauteil (7), und einen Dichtring (14) zwischen dem Lagergehäuse (2) und dem Gehäusebauteil (7), dadurch gekennzeichnet, dass der Dichtring (14) zur Entfaltung seiner Dichtwirkung in Richtung senkrecht zur Welle (3) verpresst ist.

Verfahren zur Entfernung von Auswuchtungsmaterial eines Turbinenrades

Ein Turbinenrad (10) für einen Turbolader weist eine Nabe (12) auf und erstreckt sich in einer axialen Richtung zwischen einer Nase (14) und einer Rückwand (22). Die Nabe (12) definiert eine Drehachse (28), die sich in der axialen Richtung erstreckt, und die Rückwand (22) weist eine Umfangskante (20) auf. Mehrere Turbinenschaufeln (26) sind mit der Nabe (12) gekoppelt und in einer Umfangsrichtung im Allgemeinen in gleichen Intervallen um die Drehachse (28) angeordnet. Mindestens ein Bogen (44, 48) ist in der Umfangskante (20) der Rückwand (22) zum Auswuchten des Turbinenrades (10) angeordnet. Der mindestens eine Bogen (44, 48) ist entlang der Umfangskante (20) derart angeordnet, dass die Umfangskante (20) in der Umfangsrichtung um die Drehachse (28) nicht symmetrisch ist.

Making turbine casing for turbocharger, comprises inserting a partition wall in a sand core, inserting core in casting tool, filling cavity with casting material to provide turbine casing blank, and cooling turbine casing blank

The method comprises inserting a partition wall (6) in a sand core (4) in such a way that a first region of the partition wall is enclosed by the core and a second region of the wall extends into a cavity (5), inserting the sand core in a casting tool so that the cavity remains in the casting tool and has a shape of the turbine casing, filling the cavity with a casting material to provide a turbine casing blank inserted with the second region of the partition wall, and cooling the turbine casing blank inserted with the second blank region of the partition wall. The method comprises inserting a partition wall (6) in a sand core (4) such that a first region of the partition wall is enclosed by the core and a second region of the wall extends into a cavity (5), inserting the sand core in a casting tool so that the cavity remains in the casting tool and has a shape of the turbine casing, filling the cavity with a casting material to provide a turbine casing blank inserted with the second region ...

VARIABLER TURBINENGEOMETRIE-TURBOLADER MIT INTERNEM BYPASS FÜR DEN ABGASSTROM

Zwillingsturboladervorrichtung

Zwillingsturboladervorrichtung (1) aufweisend einen Turbolader erster Stufe (10) und einen Turbolader zweiter Stufe (20):der Turbolader erster Stufe (10) weist einen Kompressor erster Stufe, eine Turbine erster Stufe (8), ein Kompressorgehäuse erster Stufe (24) mit einem Einlass (31), um Luft zu ermöglichen, zum Kompressor erster Stufe geleitet zu werden, einen Kompressorgehäuseauslass (32), um Luft zu ermöglichen, aus dem Kompressorgehäuse erster Stufe (24) auszutreten, ein Turbinengehäuse erster Stufe (40), das die Turbine erster Stufe (8) umgibt und das Abgase vom Motor empfängt bevor die Abgase zur Turbine erster Stufe (8) geleitet werden, einen Einlass (140) am Turbinengehäuse erster Stufe (40), um den Abgasen zu ermöglichen zur Turbine erster Stufe (8) geleitet zu werden, um die Turbine erster Stufe (8) zu drehen und eine Lagerbaugruppe, um eine Drehung der Turbine erster Stufe und des Kompressors erster Stufe (8) zu erlauben, auf;der Turbolader zweiter Stufe (20) weist einen Kompressor ...

Bypass einer Nutzturbine für verbesserte Motorbremsung

Turbolader

Ein Turbolader (C) beinhaltet: ein Lager; einen Lagerwandabschnitt (21), der eine Lagerbohrung hat, in der das Lager angeordnet ist; einen Trennwandabschnitt (23), der auf einer radial äußeren Seite der Lagerbohrung mit Bezug zu dem Lagerwandabschnitt (21) vorgesehen ist, und der einen Innenraum (S) mit dem Lagerwandabschnitt (21) ausformt; einen Ölabführanschluss (23a), der in dem Trennwandabschnitt (23) ausgeformt ist, und der mit dem Innenraum (S) verbunden ist; und einen Führungsabschnitt (25), mit dem der Lagerwandabschnitt (21) gegenüber dem Innenraum (S) versehen ist, und der sich in einer Richtung einer Ebene senkrecht zu der Mittelachse des Lagers von dem Ölabführanschluss (23a) trennt, wobei er sich in einer Richtung der Mittelachse dem Ölabführanschluss (23a) nähert.

Variable turbine geometry for turbine part of charging device i.e. turbocharger, of internal combustion engine, has guide vanes that are operable by control ring, where control ring is locked at pin by bayonet fitting

The geometry has guide vanes which are attached to a periphery of a turbine wheel and are operable by a control ring which is supported at a pin (16) of the guide vanes, where the control ring is locked at the pin by a bayonet fitting. The control ring has radially running openings and guiding and supporting areas for the control ring that are formed at an inner periphery of the control ring. L-shaped openings in the control ring have a radial part, a peripheral part or an enlarged peripheral part and an assembly opening.

Turbocharger for use in internal combustion engine e.g. diesel engine, has axial slidegate valve changing exhaust gas flow and arranged in discharge region of turbine that is provided in wheel chamber of exhaust gas guiding section

The turbocharger (2) has a turbine (8) provided with a number of turbine blades and rotatably provided in a wheel chamber of an exhaust gas guiding section (4). A capsule-shaped axial slidegate valve (15) is provided for changing exhaust gas flow. The valve is pneumatically adjustable and arranged with the turbine blades. The valve is arranged in a discharge region of the turbine. The valve exhibits inner and external walls extending in axial direction. A controllable moving device positions the valve and exhibits a support device formed in a form of spiral spring.

Multistage exhaust turbocharger for pressure charging of intake air in internal combustion engine, has turbine, radial compressor driven over shaft of turbine, and axial compressor driven from shaft across connector

A multistage exhaust turbocharger has a turbine, a radial compressor (2) driven over shaft of turbine and an axial compressor (8) driven from shaft across connector. The connector used is a centrifugal force connector. Axial compressor builds radial compressor level (20). Radial compressor builds axial compressor level (30). Connector closes depending on the rotary speed, by which an operation of axial compressor takes place. Closing of connector takes place over a speed of more than 3000 revolutions per minute. A guide baffle wheel (14) is provided between the radial and the axial compressor. A roller bearing, particularly a ball bearing is provided for the bearing of the axial compressor. The air sucked in from a range of the internal combustion engine reaches in the axial compressor and from there, over a guide baffle wheel, reaches in the radial compressor where it is again compressed as axial compressor level, in order to discharge the air, over a compressor line, in combustion chambers ...

Exhaust gas turbocharger for internal combustion engine has at least one stud bolt provided to fasten guide vane carrier on bearing housing on side facing away from flow passage

The exhaust gas turbocharger for an internal combustion engine comprises a turbine, turbine housing (10), bearing housing (18), a flow passage (22) in the turbine, and guide vane carrier (16). At least one stud bolt (24) is provided to fasten the guide vane carrier on the bearing housing on a side facing away from the flow passage. The stud bolt on the flow passage side protrudes out beyond the guide vane carrier and has fastening means for a flow passage component part which together with the guide vane carrier forms a section of the flow passage in the turbine.

Abgasturbolader mit einer Abgasleitvorrichtung

Abgasturbolader (1) mit einer Abgasleitvorrichtung (2), die eine Stelleinrichtung zum Einstellen eines Durchströmungsquerschnitts durch die Abgasleitvorrichtung (2) aufweist, dadurch gekennzeichnet, dass die Stelleinrichtung mehrere miteinander wirkverbundene Ventilelemente (9,11) aufweist, die in ihrer Geschlossenstellung jeweils mit einem zugeordneten Ventilsitz (10,12) in Dichtverbindung stehen, wobei wenigstens eines der Ventilelemente (9,11) auf der stromaufwärts liegenden Seite des jeweils zugeordneten Ventilsitzes (10) und wenigstens ein weiteres der Ventilelemente (9,11) auf der stromabwärts liegenden Seite des jeweils zugeordneten Ventilsitzes (12) angeordnet ist, und dass die Ventilelemente (9,11) an einer Schubstange (13) befestigt sind und über diese miteinander in Wirkverbindung stehen, sodass sie gemeinsam in axialer Richtung verlagerbar sind, wobei die Ventilelemente (9,11) jeweils mittels wenigstens eines zwischen der Schubstange (13) und dem jeweiligen Ventilelement (9,11 ...

System zur Erzeugung elektrischer Energie für ein Fahrzeug

Die Erfindung betrifft ein System (1) zur Erzeugung elektrischer Energie für ein Fahrzeug, umfassend mindestens einen Brenner (2) und einen mit einer elektrischen Maschine (3) gekoppelten Turbolader (4), wobei zwischen einer Abgasauslassseite des mindestens einen Brenners (2) und einer Turbine (4.1) des Turboladers (4) eine Abgasleitung (5) angeordnet ist, über welche der Turbine (4.1) des Turboladers (4) zum Antrieb des Turboladers (4) und somit zum Antrieb der elektrischen Maschine (3) zur Erzeugung der elektrischen Energie ein von dem mindestens einen Brenner (2) erzeugtes Abgas zuführbar ist, wobei zwischen einem Verdichter (4.2) des Turboladers (4) und einer Frischlufteinlassseite des mindestens einen Brenners (2) eine Frischluftzuführleitung (6) angeordnet ist, über welche dem mindestens einen Brenner (2) eine von dem Verdichter (4.2) des Turboladers (4) verdichtete Frischluft zuführbar ist, und wobei mindestens ein Wärmetauscher (7) zur Übertragung von Wärme vom Abgas auf die Frischluft ...

Verdichter für einen Turbolader einer Brennkraftmaschine sowie Turbolader für eine Brennkraftmaschine

Die Erfindung betrifft einen Verdichter (30) für einen Turbolader (1) einer Brennkraftmaschine sowie einen Turbolader mit einem solchen Verdichter, wobei der Verdichter (30) ein Verdichtergehäuse (31), ein Verdichterrad (13) und einen im Verdichtergehäuse (31) angeordneten Luftzuführkanal (36) zum Leiten eines Frischluftmassenstroms (FM) auf das Verdichterrad (13), sowie einen ersten und einen zweiten jeweils im Verdichtergehäuse (31) angeordneten Spiralkanal (50, 51) mit jeweils einem Luftabführkanal (33), aufweist. Weiter sind ein Rückführkanal (52), der den ersten Spiralkanal (50) mit dem Luftzuführkanal (36) fluidtechnisch koppelt, und eine Blockiervorrichtung (53) vorgesehen, wobei die Blockiervorrichtung (53) zwischen einer Schließstellung, in der der Rückführkanal (52) geschlossen und der Luftabführkanal (33) des ersten Spiralkanals (50) freigegeben ist, und einer Offenstellung, in der der Rückführkanal (52) freigegeben und der Luftabführkanal (33) des ersten Spiralkanals (50) geschlossen ...

Exhaust gas turbocharger for internal combustion engine has masses of equal size at equal angular intervals on turbine shaft that engage shaft at equal radial, operationally variable distance

The turbocharger has a turbine (11) acted upon by exhaust gas and a compressor (13) fixed to the turbine via a turbine shaft (12) so as to rotate with the turbine for sucking in air and forcing the compressed air into the engine. Several masses (14) of equal size are mounted at equal angular intervals on the turbine shaft and engage the shaft at an equal radial distance that can be varied during operation.

Abgasturbine eines Abgasturboladers mit einer abgedichteten Wastegate-Ventileinrichtung sowie Abgasturbolader

Die Erfindung betrifft eine Abgasturbine (20) eines Abgasturboladers (100) mit einer Wastegate-Ventilanordnung (10), sowie einen Abgasturbolader (100) mit einer solchen Abgasturbine (20) .Die Abgasturbine (20) weist ein Turbinengehäuse (21) und eine dessen Gehäusewand (21a) durchdringende Lagerbohrung (23), mit einer darin fixiert angeordnet Lagerbuchse (1) auf, in der eine Ventilspindel (15) der Wastegate-Ventileinrichtung (10), vom Innenraum des Turbinengehäuses (21) durch die Lagerbohrung (23) der Gehäusewand (21a) nach außen, geführt und um ihre Spindelachse (16) drehbar gelagert ist. Dabei greift die Lagerbuchse (1) zumindest an einem ihren axialen Enden jeweils mit einem Stellhebel-Anschlussflansch (181) oder/und einem Ventilspindelabsatz (151), mittels zumindest einem, bezüglich der Spindelachse (16) umlaufenden, sich axial erstreckenden Dicht-Steg (6) und zumindest einer dazu komplementären Dicht-Nut (7), nach Art einer Labyrinth-Dichtung in axialer Richtung kämmend ineinander.

Zur Aufladung einer Brennkraftmaschine dienende, aus Abgasturbine und Geblaese bestehende Maschinengruppe

Verfahren und Vorrichtung zur Schubentlastung eines Turboladers

Aufgabe der Erfindung ist es, das Teillast- und Leerlaufverhalten eines mit einer Vorrichtung zur Schubentlastung ausgestatteten Turboladers zu verbessern. Dazu sollen sowohl ein Verfahren als auch eine Vorrichtung angegeben werden. DOLLAR A Erfindungsgemäß wird dies dadurch erreicht, dass diese Verbindung eines Hochdruckbereiches (16, 61) des Turboladers (1) mit einem Bereich (21, 29) des Turboladers (1), welcher einen geringeren Druck als der Hochdruckbereich (16, 61) aufweist, bei Vollast des Turboladers (1) vollständig geöffnet, bei Teillast zumindest nahezu und im Leerlauf vollständig geschlossen wird. Dazu ist die als ein Entlüftungskanal (22) ausgebildete Vorrichtung zur Schubentlastung mit einem Schließelement (30, 41, 46) versehen.

Turbine for exhaust gas supercharger of internal combustion engine for motor vehicle, has rotor blade whose leading edge is moved in direction opposite to axial direction and partially arranged in plane which encloses specific angle

The turbine (32) has a turbine wheel (34) which is divertable with an operation of the main portion over a leading edge of a rotor blade of an exhaust gas flow against and from the exhaust gas is drivable over a diverting edge of the rotor blade in axial direction. A rotational axis is rotatable around the rotor blade. The leading edge of the rotor blade is moved in the direction opposite to the axial direction and is partially arranged in a plane which encloses an angle different from 0[deg] with the axial direction.

Aufgeladene Brennkraftmaschine mit zweiflutiger Turbine und Verfahren zum Betreiben einer derartigen Brennkraftmaschine

Die Erfindung betrifft eine aufgeladene Brennkraftmaschine mit mindestens einem Zylinderkopf mit mindestens zwei Zylindern, bei der jeder Zylinder mindestens eine Auslassöffnung zum Abführen der Abgase aus dem Zylinder via Abgasabführsystem aufweist und sich an jede Auslassöffnung eine Abgasleitung anschließt, mindestens zwei Zylinder in der Art konfiguriert sind, dass sie zwei Gruppen mit jeweils mindestens einem Zylinder bilden, die Abgasleitungen der Zylinder jeder Zylindergruppe unter Ausbildung eines Abgaskrümmers (8a, 9a) jeweils zu einer Gesamtabgasleitung (6a, 7a) zusammenführen, und die beiden Gesamtabgasleitungen (6a, 7a) mit einer zweiflutigen Turbine (1), die mindestens ein in einem Turbinengehäuse (2) auf der drehbaren Welle (4) gelagertes Laufrad (3) umfasst, in der Art verbunden sind, dass jeweils eine Gesamtabgasleitung (6a, 7a) mit einer der zwei Fluten (8, 9) der Turbine (1) verbunden ist, wobei die zwei Fluten (8, 9) in Richtung des mindestens einen Laufrades (3) zumindest ...

Aufgeladene Brennkraftmaschine mit segmentierter Turbine und Verfahren zum Betreiben einer derartigen Brennkraftmaschine

Die Erfindung betrifft eine Brennkraftmaschine, bei der jeder Zylinder min. eine Auslassöffnung aufweist, mindestens zwei Zylinder in der Art konfiguriert sind, dass diese min. zwei Gruppen mit jeweils min. einem Zylinder bilden, die Abgasleitungen der Zylinder jeder Zylindergruppe unter Ausbildung eines Abgaskrümmers jeweils zu einer Gesamtabgasleitung zusammenführen, min. ein Abgasturbolader vorgesehen ist, und die min. zwei Gesamtabgasleitungen mit einer mehrflutigen segmentierten Turbine (1, 11) eines Abgasturboladers, die min. ein in einem Turbinengehäuse (2) auf einer drehbaren Welle (4) gelagertes Laufrad (3) umfasst und deren min. zwei Fluten (8, 9) in einem Schnitt senkrecht zur Welle (4) des Laufrades (3) zumindest entlang eines bogenförmigen Abschnitts aufeinander liegend angeordnet sind und das mind. eine Laufrad (3) spiralförmig auf unterschiedlich großen Radien umschließen und jeweils entlang eines kreisbogenförmigen Segments zu dem min. einen Laufrad (3) hin geöffnet sind ...

Abgasturbolader

Die vorliegende Erfindung betrifft einen Abgasturbolader mit einem Lagergehäuse, in dem eine Turboladerwelle über mindestens ein Kugellager gelagert ist, wobei das Kugellager einen Lageraußenring aufweist. Um einen derartigen Abgasturbolader bezüglich seines akustischen Verhaltens zu optimieren, ist erfindungsgemäß vorgesehen, dass der Lageraußenring frei drehbar in dem Lagergehäuse gehalten und an seinem einen axialen Ende über ein Axiallager abgestützt ist.

Abgasturbolader mit optimiertem akustischen Verhalten

Es wird ein Abgasturbolader mit optimiertem akustischen Verhalten beschrieben. Zwischen Turbinengehäuse und Lagergehäuse des Abgasturboladers ist mindestens ein Schwingungsdämpfungselement in Form eines aus mehreren benachbarten Schichten eines gewellten Drahtgewebes, -gewirkes oder -geflechtes zusammengesetzten Korpus verspannt. Auf diese Weise wird die Übertragung von Schwingungen vom Lagergehäuse auf das Turbinengehäuse reduziert, wodurch der Energieeintrag ins Abgassystem herabgesetzt wird.

Turbolader

Turbolader, mit einer Turbine zur Entspannung eines ersten Mediums, mit einem Verdichter zur Verdichtung eines zweiten Mediums unter Nutzung von in der Turbine bei Entspannung des ersten Mediums gewonnener Energie, wobei ein Turbinengehäuse (1) der Turbine und ein Verdichtergehäuse des Verdichters mit einem zwischen denselben angeordneten Lagergehäuse verbunden sind, und mit einer das Turbinengehäuse (1) und/oder das Verdichtergehäuse und/oder das Lagergehäuse radial außen und axial außen zumindest abschnittsweise umgebenden Verschalung (2), die mit dem jeweiligen zu verschalenden Gehäuse (1) über mehrere Befestigungseinrichtungen (5, 6) verbunden ist. Mindestens eine Befestigungseinrichtung (5) bildet eine festlagerartige Anbindung und mindestens eine Befestigungseinrichtung (6) eine loslagerartige Anbindung der Verschalung (2) an dem jeweiligen zu verschalenden Gehäuse (1) aus.

Abgasturbolader

Abgasturbolader (1) umfassend ein Gehäuse (2, 3, 4), ein im Gehäuse (2) angeordnetes Turbinenrad (5), ein im Gehäuse (3) angeordnetes Verdichterrad (7), eine das Turbinenrad (5) mit dem Verdichterrad (7) verbindende Welle (6), einen im Gehäuse (2, 3, 4) ausgebildeten Bypasskanal (16), der am Turbinenrad (5) oder Verdichterrad (7) vorbei führt, und eine Klappenanordnung (10) zum Öffnen und Schließen einer Öffnung (20) des Bypasskanals (16), dadurch gekennzeichnet, dass die Klappenanordnung (10) eine die Öffnung (20) verschließende Dichtscheibe (18) und einen die Öffnung (20) verschließenden Federteller (11) umfasst.

TURBOLADER FUER BRENNKRAFTMASCHINEN.

Abgasturbolader fuer Brennkraftmaschinen

Abgasturbolader, Leitapparat für einen Abgasturbolader sowie Schaufelhebel für einen Leitapparat

Die Erfindung betrifft einen Abgasturbolader (1) sowie insbesondere einen Leitapparat (13) für einen Abgasturbolader (1). Der Leitapparat (13) umfasst einen Ring von Leitschaufeln (8), die mittels Schaufelzapfen (18) an einem Schaufellagerring (12) drehbar gelagert sind. Die Schaufelzapfen (18) sind jeweils verdrehfest mit einem Schaufelhebel (11) verbunden. Die Schaufelhebel (11) weisen Schaufelhebeleingriffsmittel (17, 10; 46, 47) auf, welche mit Verstellringeingriffsmitteln (16; 10, 57) eines gegenüber dem Schaufellagerring (12) drehbaren Verstellrings (9) derart in Wirkverbindung stehen, dass bei Verdrehung des Verstellrings (9) in Bezug auf den Schaufellagerring (12) alle Schaufelhebel (11) und mit ihnen die Leitschaufeln (8) gleichzeitig verdreht werden. Der Verstellring (9) ist an axialen Ansätzen (14) mehrerer der Schaufelhebel (11) radial abgestützt gelagert. Die Erfindung sieht vor, dass wenigstens eines der Schaufelhebeleingriffsmittel einen in einen Kulissenstein (10) eingreifenden ...

Flüssigkeitskühlsystem eines durch einen Turbolader aufgeladenen Verbrennungsmotors und Verfahren zur Kühlung eines Turbinengehäuses eines Turboladers

Ein Flüssigkeitskühlsystem (16) eines durch einen Turbolader (1) aufgeladenen Verbrennungsmotors umfasst einen von einer Kühlmittelpumpe (34) betreibbaren ersten Kühlkreislauf (17), der durch einen Motorblockkühlmantel (18) verläuft, und einen von dem ersten Kühlkreislauf (17) abgezweigten zweiten Kühlkreislauf (21), der durch einen zwischen einer inneren Wand (9) und einer äußeren Wand (10) eines doppelwandigen Turbinengehäuses (15) des Turboladers (1) ausgebildeten Kühlmantel (8) verläuft.

Turbine for exhaust gas turbocharger, comprises housing, in which turbine wheel is arranged, and wastegate for bypassing turbine wheel, where wastegate valve is provided for controlling wastegate, which has valve element

The turbine (2) comprises a housing (3), in which a turbine wheel (4) is arranged, and a wastegate (11) for bypassing the turbine wheel. A wastegate valve (12) is provided for controlling the wastegate, which has a valve element interacting with a valve seat formed in the housing, a drive shaft, which is connected with the valve element, and a socket arranged on the housing for rotatably supporting the drive shaft. A biasing spring (30) is provided, which is connected with an actuator (13). A drive lever (15) is provided, which is rotatably connected with the drive shaft.

Turbokompressor mit Luftlagerung und selbstschliessendem Luftversorgungsventil

Turbolader mit verstellbarem Einlass und Verfahren zur Herstellung von Teilen dessen Verstellungsmechanismus

Schwingungsreduzierung in einem Abgasturbolader

Vorgeschlagen wird eine Strömungsmaschine für einen Abgasturbolader, mit einem Gehäuse (1), welches einen Strömungskanal für ein Fluid definiert, das die Strömungsmaschine durchströmt; einer in dem Gehäuse drehbar aufgenommenen Laufradnabe (2); mehreren auf der Nabe angeordneten Laufschaufeln (3) zum Umlenken einer Fluidströmung; und einer Leiteinrichtung mit Leitschaufeln (4) zum Umlenken einer Fluidströmung; und einem Störungsgenerator (5) zur Induzierung einer Störung in der Fluidströmung, die eine durch die Leitschaufeln (4) induzierte Schwingung der Laufschaufeln (3) durch Überlagerung reduziert.

Turboladergehäuse mit fest eingebauten Einlass- und Auslassöffnungen

Beispielhafte Ausführungsformen der vorliegenden Erfindung sind auf einen Turbolader für einen Verbrennungsmotor und insbesondere auf eine Vorrichtung und ein Verfahren zur Fluidkopplung eines Turboladers mit einem Verbrennungsmotor gerichtet. Bei einer Ausführungsform wird ein Turboladergehäuse bereitgestellt. Das Turboladergehäuse umfasst ein Turbinengehäuse, das eine Diffusorkammer definiert. Das Turboladergehäuse umfasst auch eine erste Gehäusestütze, die sich von dem Turbinengehäuse weg erstreckt. Die erste Gehäusestütze ist mit dem Turbinengehäuse einstückig ausgebildet und die erste Gehäusestütze definiert eine Einlassöffnung und eine Auslassöffnung, welche beide in Fluidverbindung mit der Diffusorkammer stehen.

An exhaust gas turbocharger coupling assembly

A rotating machine with shaft sealing arrangement

Improvements in and relating to the charging of internal combustion engines

... 502,727. Turbines. UMPLEBY, F. Aug. 23, 1937, No. 23030. [Class 110 (iii)] [Also in Group XXVII] Exhaust-driven radial-flow turbine-blade, 14 are provided with extensions 14b which act continuously as fan blades to extract residual exhaust gases. The composite blades may be mounted or formed on one or both sides of the wheel 15, or fan blades only, inducing cooling air, may be formed on one side.

Improvements in or relating to rotary bearing arrangements

... 669,732. Gas turbines; centrifugal blowers. BUCHI, A. Jan. 14, 1947. [Jan. 21, 1946] No. 1226/47. Classes 110(i) and 110(iii). [Also in Group XXXIV] A turbo blower-rotor aggregate with separate and distinct turbine and impeller rotors each in its own housing and with the rotor aggregate mounted on a stationary axle extending into the rotor aggregate has the journal bearing at the turbine side of the stationary axle modified to act also as a thrust bearing serving to locate the rotor aggregate in both axial directions. This bearing is disposed at the centre of gravity of the aggregate. The gas-turbine rotor 2, Fig. 2, is mounted on a rotary sleeve 10 and carries the blower impeller 1. The sleeve 10 has bearings 13, 14 on a stub shaft 8 which is hollow and carries a hollow spindle 19 which may be used for discharging cooling fluid from chamber 22 at the turbine rotor centre. Bearing 14 is stepped to provide a thrust shoulder 15, and a thrust member 17 is secured to spindle 19. Lubricant supplied ...

Two-stage turbocharger for an internal combustion engine

A system for pressurizing a cooling circuit of an intenal combustion engine equipped with a turbocompressor unit

Multi-stage turbo pump

Hybrid power generation system

Means for improving the utilisation in a turbine of exhaust gases from an internal combustion engine

... 384,472. Pumps. SOC. RATEAU, 40, Rue du ColisÚe, Paris. Feb. 4, 1932, No. 3384. Convention date, Feb. 10, 1931. [Class 7 (ii).] A gas turbine a is mounted directly on the exhaust ports e, e<1> of two adjacent parallel cylinders c, c<1> of an engine, with its axis at right angles to the axis of the cylinders, and its diameter substantially equal to the distance between the cylinder axes. The distributor of the turbine is divided by a diametral partition into two separate sectors of nozzles h, h<1>, each of which receives the exhaust gases from one cylinder only to avoid interference between the exhausts. The turbine drives a blower f disposed on the same or on the opposite side of the cylinders, and each blower may supply scavenging and supercharging air to the engine, e.g. to the two corresponding cylinders c, c<1>, with an arrangement to ensure the cylinders being charged at the same pressure. Specifications 182,786, [Class 7 (ii), Internal-combustion engines, Arrangement &c. of], 344,902 ...

GAS TURBINE ENGINE POWER UNIT

Turbo-expansion valves, turbochargers and turbojets with spiral energy recovery and inlet flow pre-rotation

Turbocharger device and fuel cell system with a turbocharger device

Exhaust turbocharger for an internal combustion engine

Improvements in and relating to charging compressors with waste gas turbines

... 405,489. Generating combustion products under pressure. AKT. - GES. BROWN, BOVERI, ET CIE, Baden, Switzerland. April 18, 1933, No. 11297. Convention date, April 14,1932. Drawings to Specification. [Class 51 (i).] The supply of a pressure-fired steam generator is effected by means of a multi-stage axial compressor driven by a waste gas turbine. The axial thrusts of the compressor and reaction turbine balance one another when one compressor is used for both the gas and air. When separate compressors are used their axial thrusts balance one another and the turbine is made self balancing. The turbine is of the multi-stage reaction type.

Intake and exhaust arrangement in a gas turbine engine

A gas turbine engine 10 comprises at least one engine rotor including a compressor 22 driven by a turbine 44, a combustion chamber 38, a compressor inlet 12, 30 and a turbine exhaust 20, 48, the inlet 12, 30 and/or exhaust 20, 48 being located between the compressor 22 and the turbine 44, and at least one output shaft 24', 24'' extending from an axial end of the engine 10. The shaft(s) 24', 24'' may drive an engine gearbox, or one or more engine accessory. The engine 10 may be a single spool engine, or may be a multi-spool engine (figure 2) comprising a plurality of single spools cascaded together.

Machine assemblies comprising a turbine and a machine driven by the turbine

... 772,121. Locking screws. SULZER FRERES SOC. ANON. July 25, 1955 [Aug..5, 1954], No. 21476/55. Class 89 (1). [Also in Groups XXIV and XXVI] A screw-bolt 9, passing through a shouldered aperture in a turbine-rotor 5 and screwing into a shaft 10 for securing the rotor against the shaft end, is locked to the rotor by a disc 18 having a polygonal aperture to fit the bolt-head and rotating therewith, the disc 18 having projections engaging notches in the rotor and being retained in a recess in the rotor by a spring-ring 19. Bolting. The bolt-head has a flange 21 behind the disc 18 so that, after removal of the disc 18 and replacement of the ring 19, the rotor may be forced away from the shaft-end by unscrewing the bolt. The bolt 9 engages a surface 14 on the rotor which is approximately in the same plane as the surface 13 engaging the shaftend.

Spiral energy recovery and flow pre-rotation for turbochargers, turbo-expansion valves, turbojets and marine propellers, etc

Improvements in or relating to turbochargers

... 964,733. Centrifugal compressors; gas turbine plant; charge pumps. SCHWITZER CORPORATION. Dec. 15, 1960 [Jan. 18, 1960], No. 43207/60. Headings F1B, F1C, F1G and F1T. A turbocharger for a an I.C. engine comprises a turbine adapted to be driven by the engine and a compressor driven by the turbine, the compressor being provided with valve means directly responsive to the compressor outlet pressure and arranged in the compressor outlet flow path for by-passing gases to the turbine inlet or outlet or to atmosphere whenever the outlet pressure reaches a predetermined maximum value. A supercharger for an I.C. engine comprises a centrifugal impeller 38 driven by the rotor 16 of an exhaust gas turbine. The discharge pressure of the supercharger is limited by a spring-loaded relief valve 47. When the discharge pressure has risen sufficiently to open the valve 47, compressed air is bypassed through passages 44, 44f to a region downstream (or alternatively upstream) of the turbine nozzle vanes 13, ...

Turbocharger apparatus

Method of design of a turbine

A method is proposed for designing a turbine of a turbocharger of an engine system having an exhaust gas recirculation (EGR) path. At at least one engine speed, such as the peak torque speed, a pressure drop along the EGR path is determined, and then the turbine design is selected such that the asymmetry factor is according to a function of the pressure drop. The invention further proposes turbines in which the asymmetry factor has a specific relationship to the pressure drop along the EGR path, and engines incorporating such turbines.

Variable geometry turbine

A variable geometry turbine comprises: a turbine wheel (5) mounted within a housing assembly (1) for rotation about a turbine axis, the housing assembly defining a radial gas flow inlet passage (9); an annular wall member (11) defining one wall of the inlet passage and which is displaceable in a direction parallel to the turbine axis to control gas flow through the inlet passage; and a linkage mechanism comprising at least one actuating member (16) operably connected to the annular wall member to control displacement of the wall member. The actuating member extends in a direction parallel to the turbine axis through an aperture (29) defined by a retaining member (24) such that a first bearing surface defined by the actuating member extending transverse to the turbine axis is contacted by a surface of the retaining member so as to connect the actuating member to the annular wall member. The aperture is dimensioned to define a clearance (30) between a wall of the aperture and a portion of ...

An auxillary power generation apparatus

Actuator rod for a variable geometry turbine

Variable geometry turbocharger turbine

Improvements in turbines driven by the exhaust from internal combustion engines

... 285,747. Bernstein, S. Sept. 1, 1927. Jet-wheels; plant.-A turbine comprising two discs mounted on a shaft and connected by curved blades, and having curved blades secured to the outer sides of the discs, is driven by the exhaust gases of an internal combustion engine, a triple nozzle directing the gases on to the blades.

Methods and systems for adaptively cooling combustion chambers in engines

The present disclosure is directed to various embodiments of systems and methods for cooling a combustion chamber of an engine. One method includes introducing fuel into the combustion chamber of an engine having an energy transfer device that moves through an intake stroke, a compression stroke, a power stroke, and an exhaust stroke. The method further includes monitoring a temperature of the combustion chamber. When the temperature reaches a predetermined value, the method also includes introducing coolant into the combustion chamber only during at least one of the power stroke and the exhaust stroke of the energy transfer device.

Bearing retention assembly for and method of assembling turbochargers

An assembly for a turbocharger and a method of assembling a turbocharger are disclosed. Such an assembly can include an elongate pin having a tapered part and a protrusion at one end of the pin. The elongate pin is configured to be inserted within a housing opening and a cartridge opening such that the taper of the body portion of the pin mates with the taper of the housing opening. The cartridge opening is configured as to mate with the pin such that the pin substantially restricts the bearing cartridge from surging and rolling but substantially permits all other movements of the bearing cartridge.

Anisotropic bearing supports for turbochargers

An exemplary anisotropic member supports a semi-floating bearing in a bore and can reduce non-synchronous vibration of the bearing in the bore. An anisotropic member can include an annular body configured to receive a semi-floating bearing and to space the bearing a distance from a bore surface and can be configured to impart anisotropic stiffness and damping terms to the semi-floating bearing when positioned in the bore. Such a member is suitable for use in a rotating assembly for a turbocharger where the bearing may be a semi-floating bearing. Various exemplary members, bearings, housings, assemblies, etc., are disclosed.

Hybrid turbocharger system with brake energy revovery

A hybrid hydraulic turbocharger system for internal combustion engines. The turbocharger system includes a hydraulic pump motor in mechanical communication with said engine drive shaft. A hybrid turbocharger unit includes an engine exhaust gas turbine driving a compressor, a hydraulic turbine and a hydraulic pump, all mounted on said turbocharger shaft. The hydraulic pump motor functions as a hydraulic pump driven by the drive shaft of the engine to provide additional boost to the turbocharger unit at low engine speeds and functions as a hydraulic motor driven by the turbocharger pump to provide additional torque to the engine drive shaft high engine speeds. Additionally, this system provides for brake energy recovery by storing the energy absorbed during the breaking cycle and releasing it back to the pump motor when required during the subsequent acceleration cycle.

Turbocharger

A variable geometry turbocharger includes a bearing housing rotatably supporting a turbine impeller; and an exhaust nozzle changing the flow rate of an exhaust gas supplied to the turbine impeller, wherein the exhaust nozzle has an exhaust inlet wall disposed at the bearing housing side, the turbocharger has a seal member exhibiting a ring shape and sealing a gap formed between the bearing housing and the exhaust inlet wall, and an inner circumferential edge of the seal member firmly contacts the bearing housing and an outer circumferential edge of the seal member firmly contacts the exhaust inlet wall.

Turbocharger assembly

According to an aspect of the present invention, there is provided a turbocharger assembly, comprising: a turbocharger; one or more actuators for controlling a flow of fluid in, around, or associated with the operation of the turbocharger; control electronics for use in controlling actuation of the one or more actuators; and boost electronics configured to receive an input voltage, and to provide a boosted output voltage to the control electronics.

Turbocharger, notably for a combustion engine

The turbocharger comprises a shaft 14 , a housing 12 , a turbine wheel 20 and a compressor wheel 22 mounted onto the shaft, and at least a rolling bearing 18 disposed between the shaft and the housing and comprising an inner ring 26 , an outer ring 28 and at least one row of rolling elements 30 disposed into a rolling space 40 defined between the rings. A damping space 38 is defined between an outer surface 28 a of the outer ring and a bore 16 of the housing inside which a lubricant is located.

Turbocharger

A turbocharger for an internal combustion engine, comprising a bearing housing, a rotating shaft coupled to the bearing housing, a compressor wheel mounted at one end of the rotating shaft, a compressor housing accommodating the compressor wheel and provided with an inlet and an outlet for an air stream, a turbine wheel mounted at the opposite end of the rotating shaft, and a turbine housing accommodating the turbine wheel and provided with an inlet and an outlet for an exhaust gas stream, wherein the bearing housing comprises a fastening flange suitable to be fixed to a component of the internal combustion engine, wherein the turbine housing is provided with a connecting pipe for fluidly connecting the turbine housing inlet with an exhaust manifold of the internal combustion engine, and wherein the connecting pipe includes means for compensating axial thermal deformations thereof.

Limit stop device and charging unit

A limit stop device for limiting an adjustment path of a mobile component relative to a stationary component may include a sleeve body configured to be inserted into an opening formed in the stationary component. The sleeve body may include a retaining segment disposed in the interior of the opening. A core body may be disposed in the interior of the sleeve body and be configured to radially brace the retaining segment against an inner wall of the stationary component thereby axially fixing the sleeve body on the stationary component. A stop surface may protrude into the adjustment path of the mobile component and be configured to limit the adjustment path of the mobile component.

Exhaust gas turbocharger housing

A turbine housing of an exhaust gas turbocharger, includes an outer housing in which an inner housing with a tubular nozzle and an outlet duct for connection to an exhaust gas system is arranged. The outlet duct is coupled with the tubular nozzle for movement relative to the nozzle via a seal ring. The seal ring is inwardly everted and pushed onto the nozzle and embraced by an inner-housing support ring, so that a fluid tight fit on the inner housing nozzle is ensured. The seal ring is further pushed onto the outlet duct and there also coupled onto the outlet duct with an outlet duct support ring in a fluid tight manner so that an especially durable connection is created. Both support rings are additionally coupled in a materially bonded manner with the seal ring and the outlet duct nozzle or with the inner housing.

Turbine housing of an exhaust gas turbocharger

A turbine housing of an exhaust gas turbocharger includes an outer housing, in which an inner housing with a tubular nozzle and an outlet duct for connection to an exhaust gas system is arranged, wherein the outlet duct is coupled to the tubular nozzle via a sealing lip for relative movement. The sealing lip is inwardly evertedly pushed onto the nozzle and for positional fixing, a sliding sleeve is further arranged on the nozzle, wherein the sliding sleeve and the nozzle form a gap in which an end of the sealing lip is received. This avoids that the sealing lip lifts of due to pressure differences and thus that gas leaks occur. Further, an end of the sealing lip is arranged so as to be thermally protected.

Turbocharger variable-nozzle assembly with vane sealing arrangement

A variable-nozzle assembly for a turbocharger includes a generally annular nozzle ring and an array of vanes rotatably mounted to the nozzle ring such that the vanes can be pivoted about their axes for regulating exhaust gas flow to the turbine wheel. A unison ring engages vane arms that are affixed to axles of the vanes, such that rotation of the unison ring causes the vanes to pivot between a closed position and an open position. The vanes have proximal ends that are adjacent a face of the nozzle ring. A vane sealing member is supported on the nozzle ring and has a portion disposed between the proximal ends of the vanes and the face of the nozzle ring. The unison ring includes cams that engage cam followers. Rotational movement of the unison ring causes the cam followers to be moved axially and thereby urge the vane sealing member against the proximal ends of the vanes.

Turbocharger With Annular Rotary Bypass Valve For the Turbine

A turbocharger includes a turbine wheel mounted within a turbine housing and connected to a compressor wheel by a shaft. The turbine housing defines an exhaust gas inlet connected to a volute that surrounds the turbine wheel, and an axial bore through which exhaust gas that has passed through the turbine wheel is discharged from the turbine housing. The turbine housing further defines an annular bypass passage surrounding the bore and arranged to allow exhaust gas to bypass the turbine wheel. An annular bypass valve is disposed in the bypass passage. The bypass valve comprises a fixed annular valve seat and a rotary annular valve member arranged coaxially with the valve seat. The valve member is disposed against the valve seat and is rotatable about the axis for selectively varying a degree of alignment between respective orifices in the valve seat and valve member. 1. A turbocharger comprising:a compressor wheel mounted within a compressor housing;a turbine wheel mounted within a turbine housing and connected to the compressor wheel by a shaft;the turbine housing defining an exhaust gas inlet connected to a volute that surrounds the turbine wheel, the turbine housing further defining an axial bore through which exhaust gas that has passed through the turbine wheel is discharged from the turbine housing;the turbine housing defining an annular bypass passage surrounding the bore and arranged to allow exhaust gas to bypass the turbine wheel; andan annular bypass valve disposed in the bypass passage, the bypass valve comprising a fixed annular valve seat and a rotary annular valve member arranged coaxially with the valve seat relative to an axis, the valve member defining a plurality of first orifices therethrough, the valve seat defining a plurality of second orifices therethrough, the valve member being disposed against the valve seat and being rotatable about the axis for selectively varying a degree of alignment between the respective orifices therethrough, ranging ...

Internal Combustion Engine Cylinder Head With Integral Exhaust Runners And Turbocharger Housing

An internal combustion engine cylinder head is based upon a one-piece structure including a number of exhaust runners, an exhaust collector, and a turbocharger exhaust turbine housing, all formed as one-piece.

Screwable bearing housing cover for a supercharging device

A bearing housing may have a bearing housing cover formed of metal. A first thread may be arranged on the bearing housing cover and a second thread may be arranged on the bearing housing and designed complementarily to the first thread so that the bearing housing cover may be screwed on and fixed on the bearing housing through a rotational movement.

Exhaust-gas turbocharger

An exhaust-gas turbocharger ( 1 ) having a compressor ( 2 ) which has a compressor wheel ( 3 ) in a compressor housing ( 4 ); a turbine ( 5 ) which has a turbine wheel ( 6 ) in a turbine housing ( 7 ); a bearing housing ( 8 ) which receives a static bearing bush ( 9 ) for a rotor shaft ( 10 ) and which has, at the compressor side, a bearing housing cover ( 11 ), and a bearing bush rotation prevention means ( 12 ) which has at least one lug ( 13, 14, 15 ) supported in the bearing housing ( 8 ) and which engages into at least one of two grooves ( 16, 17 ) of the bearing bush ( 9 ). The grooves ( 16, 17 ) are arranged diametrically oppositely on an outer circumferential region ( 18 ) of the bearing bush ( 9 ).

Multi-stage supercharging apparatus

A multi-stage supercharging apparatus including a first supercharger and a second supercharger. The first supercharger is provided with a first turbine accommodating section, a first exhaust inlet, and a first exhaust outlet which extends in an axial direction of the first turbine from the first turbine accommodating section and is bent upward. The second supercharger is provided with a second turbine, a second turbine accommodating section, and a second exhaust inlet which is directly connected to the first exhaust outlet to allow the first exhaust outlet to be communicated with the second turbine accommodating section, and the second supercharger is supported by the first supercharger by placing an opening of the second exhaust inlet on an opening of the first exhaust outlet.

Turbocharger which is integrated into the cylinder head of an engine

A turbocharger includes a turbine with a turbine wheel, a compressor with a compressor wheel and a shaft mounted in a bearing unit. The turbine wheel and the compressor wheel are disposed on the shaft. The turbine wheel is disposed in a turbine housing. The compressor wheel is disposed in a compressor housing. The turbocharger is integrated into an aperture or recess of the cylinder head of an engine and the turbine housing is formed integrally in the cylinder head.

Turbine Exhaust Housing

A turbine assembly can include a turbine wheel, a shroud component, a turbine housing and a seal that includes a wall and a lower lip that that extends radially outwardly from the wall at an obtuse angle where the seal is disposed, at least in part, between an outer surface of the shroud component and an inner surface of the turbine housing. Various other examples of devices, assemblies, systems, methods, etc., are also disclosed.

Turbine for an exhaust gas turbocharger

In a turbine for an exhaust gas turbocharger having a turbine housing including a turbine wheel with blades, each having a leading edge and a trailing edge, an adjusting device is provided controlling the flow to the leading blade edges of the turbine wheel and also a device for controlling the flow from the trailing edges of the turbine wheel blades, both devices are coupled to one another so as to be adjustable by a single actuator.

Casing of a turbocharger

A casing of a turbocharger has a main body and a heat dissipating layer disposed on an outer surface of the main body. When heat inside the main body is conducted to the outer surface of the main body, the heat dissipating layer dissipates the heat quickly. Since the heat does not accumulate in the main body, temperature of the main body is low and the casing does not oxidize under high temperature. Therefore, the casing of the turbocharger has low manufacturing cost and is economical.

Turbine and turbocharger

A turbine includes: a turbine impeller accommodated in an accommodation space; two turbine scroll flow paths connected to the accommodation space; a first wastegate flow path (wastegate flow path) opened to one of the turbine scroll flow paths (second turbine scroll flow path) and separated from the other turbine scroll flow path (first turbine scroll flow path), and a valve for opening and closing the first wastegate flow path.

EXHAUST GAS PURIFYING APPARATUS OF VEHICLE

An exhaust gas purifying apparatus for a vehicle includes: a turbocharger having a turbine which rotates by exhaust gas flowing from an engine into an inlet of the turbine; a filter connected to an outlet of the turbine at an inlet of the filter and allowing the exhaust gas passing through the turbine to flow into the filter; and a gasket disposed between the outlet of the turbine and the inlet of the filter to maintain airtightness between the turbine and the filter. A portion of the gasket is exposed toward the turbine or the filter. 1. An exhaust gas purifying apparatus for a vehicle comprising:a turbocharger having a turbine which rotates by exhaust gas flowing from an engine into an inlet of the turbine;a filter connected to an outlet of the turbine at an inlet of the filter and allowing the exhaust gas passing through the turbine to flow into the filter; anda gasket disposed between the outlet of the turbine and the inlet of the filter to maintain airtightness between the turbine and the filter,wherein a portion of the gasket is exposed toward the turbine or toward the filter.2. The exhaust gas purifying apparatus of claim 1 , wherein the outlet of the turbine and the inlet of the filter have first and second flanges claim 1 , respectively claim 1 , which are connected to each other claim 1 ,wherein one of the first and second flanges has an indentation part, which is concaved toward an inner side of the one of the first and second flanges, such that a portion of the gasket is exposed outside.3. The exhaust gas purifying apparatus of claim 2 , wherein a region of one face of the gasket claim 2 , which is in contact with the one of the first and second flanges having the indentation part claim 2 , is painted.4. The exhaust gas purifying apparatus of claim 3 , wherein the painted region of the gasket has a width at an edge of the gasket to be equal to or greater than a depth of the indentation part on one of the first and second flanges.5. The exhaust gas ...

Adjusting device for a turbocharger, and turbocharger

The invention relates to a control device for a turbocharger, comprising an exhaust gas conducting section through which fluid can flow and which includes a bypass duct for bypassing a turbine wheel that is rotatably arranged in the exhaust gas conducting section, and comprising an adjusting arm (3) for accommodating a valve element (2) provided for opening or blocking a flow cross-section of the bypass duct; the adjusting arm (3) is movably accommodated in the exhaust gas conducting section; furthermore, a flexible element (14) is provided at least for securing the valve element (2) in place on the adjusting arm (3). According to the invention, the flexible element (14) is designed so as to be radially slidable in order to reduce adjustment forces.

INTEGRATED CONTROL SYSTEM FOR ENGINE WASTE HEAT RECOVERY USING AN ORGANIC RANKINE CYCLE

An engine waste heat recovery (WHR) system includes a turbocharger WHR portion, an exhaust WHR portion, an expander in the exhaust WHR portion, a condenser, valves, and a controller. The expander receives a working fluid in a superheated form and converts thermal energy in the working fluid into mechanical energy or electrical energy. The condenser condenses the working fluid for recirculation through the engine WHR system. The recuperator is fluidly coupled between the expander and the condenser to allow the working fluid to flow from the expander to the condenser. The recuperator transfers thermal energy to a flow of the working fluid from the turbocharger WHR portion. Each valve is fluidly coupled to one of the turbocharger WHR portion and the exhaust WHR portion. The controller is electrically coupled to the valves, and the controller selectively controls the valves to selectively circulate the working fluid through the engine WHR system. 1. An engine waste heat recovery system , comprising:a turbocharger waste heat recovery portion;an exhaust waste heat recovery portion;an expander in the exhaust waste heat recovery portion, the expander configured to receive a working fluid in a superheated form and convert thermal energy in the working fluid into mechanical energy or electrical energy;a condenser configured to condense the working fluid for recirculation through the engine waste heat recovery system;a recuperator fluidly coupled between the expander and the condenser to allow the working fluid to flow from the expander to the condenser, the recuperator further configured to transfer thermal energy to a flow of the working fluid from the turbocharger waste heat recovery portion;a plurality of valves, each of the plurality of valves fluidly coupled to one of the turbocharger waste heat recovery portion and the exhaust waste heat recovery portion; anda controller electrically coupled to the plurality of valves, the controller configured to selectively control ...

VARIABLE-CAPACITY TURBOCHARGER

A variable-capacity turbocharger includes a nozzle flow passage in which a gas is capable of flowing therethrough from a scroll flow passage toward a turbine impeller, a connecting pin connecting flow passage wall surfaces forming the nozzle flow passage, and nozzle vanes arranged in a rotation direction of the turbine impeller. At least one of the flow passage wall surfaces includes an inner peripheral side wall surface extending radially inward of a first reference line extending in the rotation direction, an outer peripheral side wall surface which is a plane extending radially outward from a second reference line extending in the rotation direction and parallel to a plane orthogonal to rotation axes of the nozzle vanes, and an intermediate wall surface which is a plane extending from the first reference line to the second reference line and parallel to the plane extending orthogonal to the rotation axes of the nozzle vanes. 1. A variable-capacity turbocharger comprising:a nozzle flow passage in which a gas is capable of flowing therethrough from a scroll flow passage toward a turbine impeller;a connecting pin connecting flow passage wall surfaces forming the nozzle flow passage; andnozzle vanes arranged in a rotation direction of the turbine impeller, an inner peripheral side wall surface extending radially inward of a first reference line extending in the rotation direction, the inner peripheral side wall surface being inclined to extend away from the nozzle vanes in a rotation axis direction of the turbine impeller;', 'an outer peripheral side wall surface extending radially outward from a second reference line extending in the rotation direction and parallel to a plane orthogonal to rotation axes of the nozzle vanes, the outer peripheral side wall surface being located farther from the nozzle vanes than an edge portion of the inner peripheral side wall surface, the second reference line being located radially outward from the first reference line, and the ...

CENTRIFUGAL COMPRESSOR AND TURBOCHARGER

A centrifugal compressor includes: an impeller including a main body portion and a plurality of blades provided on an outer peripheral surface of the main body portion; an intake flow path facing the impeller in a rotational axis direction; and a throttling mechanism including a throttling member provided in the intake flow path, a ratio obtained by dividing a distance between an outer peripheral end of a leading edge of the blade and the throttling member by a maximum protruding height of the throttling member protruding from an inner wall surface of the intake flow path is equal to or less than 4. 1. A centrifugal compressor comprising:an impeller including a main body portion and a plurality of blades provided on an outer peripheral surface of the main body portion;an intake flow path facing the impeller in a rotational axis direction; anda throttling mechanism including a throttling member provided in the intake flow path, a ratio obtained by dividing a distance between an outer peripheral end of a leading edge of the blade and the throttling member by a maximum protruding height of the throttling member protruding from an inner wall surface of the intake flow path is equal to or less than 4.2. The centrifugal compressor according to claim 1 ,wherein the throttling member includes an opposing surface facing the outer peripheral end in an axial direction of the impeller, andthe opposing surface is located between a position of the outer peripheral end and a position of an inner peripheral end of the leading edge in the axial direction.3. A turbocharger comprising the centrifugal compressor according to .4. A turbocharger comprising the centrifugal compressor according to . This application is a continuation application of International Application No. PCT/JP2020/013848, filed on Mar. 26, 2020, which claims priority to Japanese Patent Application No. 2019-086357 filed on Apr. 26, 2019, the entire contents of which are incorporated by reference herein.The present ...

TURBOCHARGER

A turbocharger includes a turbine housing configured to accommodate a turbine wheel provided at one end of a rotation shaft, a bearing housing joined to the turbine housing and in which a bearing for supporting the rotation shaft is provided; and a variable nozzle unit that is disposed between the turbine housing and the bearing housing. The variable nozzle unit includes a nozzle ring disposed around a rotation axis of the rotation shaft and a support ring provided adjacent to the nozzle ring that includes an outer peripheral portion partially in contact with the turbine housing. One or more non-contact portions are formed in the outer peripheral portion of the support ring and do not contact the turbine housing. 1. A turbocharger comprising:a turbine housing configured to accommodate a turbine wheel provided at one end of a rotation shaft;a bearing housing joined to the turbine housing and in which a bearing for supporting the rotation shaft is provided; and a nozzle ring disposed around a rotation axis of the rotation shaft; and', 'a support ring provided adjacent to the nozzle ring that comprises an outer peripheral portion partially in contact with the turbine housing,, 'a variable nozzle unit that is disposed between the turbine housing and the bearing housing and compriseswherein one or more non-contact portions are formed in the outer peripheral portion of the support ring and do not contact the turbine housing.2. The turbocharger according to claim 1 ,wherein the variable nozzle unit comprises one or more connecting pins configured to connect the nozzle ring to the support ring, andwherein the non-contact portions are provided at locations in the outer peripheral portion of the support ring corresponding to the connecting pins in the circumferential direction.3. The turbocharger according to claim 2 , further comprising:one or more nozzle ring pin holes provided at the nozzle ring; andone or more support ring pin holes provided at the support ring,wherein at ...

TURBOCHARGER FOR AN INTERNAL COMBUSTION ENGINE

A turbocharger for an engine includes a housing, a shaft, a turbine wheel mounted to the shaft for rotation therewith, a compressor wheel mounted to the shaft for rotation therewith, and a bearing cartridge rotatably supporting the shaft relative to the housing. The housing is positioned axially between the turbine and compressor wheels. The bearing cartridge includes an inner ring mounted to the shaft, an outer ring disposed between the inner ring and the housing and movable relative to the housing, and a first and a second plurality of roller elements axially spaced apart from one another and disposed radially between the inner and outer rings to rotatably support the inner ring relative to the outer ring. A radial gap (RD) is defined between the outer ring () and the housing (). Lubricant flows into the radial gap and radially separates the outer ring from the housing during operation of the turbocharger. 1. A turbocharger for an engine , comprising:a housing;a shaft having a first end and a second end opposite the first end;a turbine wheel mounted to the first end of the shaft for rotation therewith;a compressor wheel mounted to the second end of the shaft for rotation therewith, the housing being positioned axially between the turbine wheel and the compressor wheel; and an inner ring mounted to the shaft;', 'an outer ring disposed between the inner ring and the housing, the outer ring being movable relative to the housing;', 'a first plurality of roller elements disposed radially between the inner and outer rings and rotatably supporting the inner ring relative to the outer ring; and', 'a second plurality of roller elements disposed radially between the inner and outer rings and rotatably supporting the inner ring relative to the outer ring, the second plurality of roller elements being axially spaced apart from the first plurality of roller elements,, 'a bearing cartridge rotatably supporting the shaft relative to the housing, the bearing cartridge comprisinga ...

ROTOR FOR AN ELECTRIC DRIVE MACHINE FOR DRIVING A COMPRESSOR, A TURBINE OR A CHARGER SHAFT OF A TURBOCHARGER, AND TURBOCHARGER COMPRISING AN ELECTRIC DRIVE MACHINE AND SUCH A ROTOR

An exhaust-gas turbocharger having an electric drive unit for driving a compressor, a turbine, or a turbocharger shaft of the exhaust-gas turbocharger. The electric drive unit has a rotor and a stator. The rotor is equipped with a rotor body embodied around a rotation axis of the rotor. A receptacle for at least one permanent magnet is embodied on the rotor body. A permanent magnet is disposed in the receptacle of the rotor body. The rotor body is mountable using a threaded bushing on a turbocharger shaft of the exhaust-gas turbocharger. The rotor body has a further receptacle which extends in the direction of the rotation axis and in which the threaded bushing is disposed inside the rotor body. The further receptacle is disposed in the rotor body with an offset in the direction of the rotation axis relative to the receptacle. 111-. (canceled)12. A rotor for an electric drive unit for driving a compressor , or a turbine , or a turbocharger shaft of an exhaust-gas turbocharger , comprising:a rotor body embodied around a rotation axis of the rotor and being mountable using a threaded bushing on a turbocharger shaft of the exhaust-gas turbocharger;a receptacle for at least one permanent magnet embodied on the rotor body;at least one permanent magnet disposed in the receptacle of the rotor body;wherein the rotor body has a further receptacle which extends in a direction of the rotation axis and in which the threaded bushing is disposed inside the rotor body, the further receptacle being disposed in the rotor body with an offset in a direction of the rotation axis relative to the receptacle of the at least one permanent magnet.13. The rotor as recited in claim 12 , wherein the threaded bushing has an internal thread and an outer envelope claim 12 , wherein the outer envelope of the threaded bushing comes into abutment against an inner wall of the further receptacle upon a rotation around the rotation axis relative to the rotor body.14. The rotor as recited in claim 12 , ...

ENHANCED PRESSURE WAVE SUPERCHARGER SYSTEM AND METHOD THEREOF

An enhanced pressure-wave supercharger for a combustion engine utilizes a superior pressure wave process cycle design. The design utilizes a select final portion of the compressed gas stream exiting the rotor, and supplies it to a subsequent inlet port ahead of and prior to the introduction into the rotor of the aspirated air to be compressed. Work is extracted within the rotor from this gas stream and transferred into rotational energy of the rotor through using a portion the available momentum of the compressed gas via incidence on the rotor webs to turn the rotor by means of conventional turbomachinery principles. 1. An enhanced pressure-wave supercharger for a combustion engine , comprising:at least one housing assembly;a plurality of channels configured to direct gas towards and from said housing; andat least one rotor disposed within said housing.2. The supercharger of claim 1 , wherein said housing comprises:a first portion and a second portion, wherein said first portion is configured to generate pressurized gas to be supplied to said engine.3. The supercharger of claim 2 , wherein said plurality of channels comprise:a first channel configured to supply exhaust gas from the combustion engine;a second channel configured to draw in air from an external environment;a third channel configured to discharge exhaust gas from the supercharger;a fourth channel configured to supply a first portion of pressurized gas from the supercharger to the combustion engine;a fifth channel having a bypass inlet and a bypass outlet passage, wherein said bypass inlet is configured to direct a second portion of pressurized gas from inside said first portion of the housing back into said second portion of the housing through the bypass outlet passage.4. The supercharger of claim 3 , wherein said second portion is configured to create rotational energy to turn said rotor.5. The supercharger of claim 3 , wherein said fifth channel further comprises a turbine or other work extracting ...

TURBOCHARGER COMPRESSOR WHEEL ASSEMBLY

A method of loading a rotating assembly of a turbocharger includes positioning a lock collar on an end portion of a turbocharger shaft that extends through a through bore of a compressor wheel; applying a pulling force to the end portion of the turbocharger shaft to achieve a desired amount of loading; welding the lock collar to form a welded lock collar fixed to the end portion of the turbocharger shaft; and releasing the pulling force where the welded lock collar maintains the desired amount of loading. 1. A method of loading a rotating assembly of a turbocharger , the method comprising:positioning a lock collar on an end portion of a turbocharger shaft that extends through a through bore of a compressor wheel;applying a pulling force to the end portion of the turbocharger shaft to achieve a desired amount of loading;welding the lock collar to form a welded lock collar fixed to the end portion of the turbocharger shaft; andreleasing the pulling force wherein the welded lock collar maintains the desired amount of loading.2. The method of wherein the desired amount of loading exceeds a force of approximately 1000 N.3. The method of wherein the lock collar comprises a cylindrical bore surface and wherein the end portion of the turbocharger shaft comprises a cylindrical outer surface.4. The method of wherein the lock collar comprises a thread-less bore that extends an axial length of the lock collar and wherein the end portion of the turbocharger shaft comprises a thread-less surface that is at least the axial length of the lock collar.5. The method of wherein applying a pulling force to the end portion of the turbocharger shaft comprises applying a pulling force via a threaded coupling of a tool to the end portion of the turbocharger shaft.6. The method of wherein the welding comprises directing an energy beam at the lock collar to form a weld pool that upon solidification thereof fixes the lock collar as a welded lock collar to the end portion of the turbocharger ...

Turbo pump

An exhaust turbo pump of an internal combustion engine has multiple pairs of turbine and compressor wheels rotatable about a common axis, an inner pair of wheels being connected by a tubular shaft rotatable relative to a spindle connecting an outer pair of wheels. One pair of wheels comprises a turbocharger for inlet air, and another pair of wheels comprises a low pressure EGR pump.

MULTI-STAGE EXHAUST TURBOCHARGER SYSTEM

A multi-stage exhaust turbocharger has parallel high pressure stages (), and a single low pressure stage () in series. The low pressure stage () has a divided scroll turbine wheel with each scroll fed independently from the respective turbines of the high pressure stage. Valves V V V determine flow paths to the respective turbines to ensure series sequential operation. 122-. (canceled)1. An exhaust turbocharger system , comprising:a first turbocharger having a turbine inlet adapted to be fed directly from an exhaust manifold of an internal combustion engine;a first flow control valve;a second turbocharger having a turbine inlet adapted to be fed from said exhaust manifold via the first flow control valve;a second flow control valve having a valve inlet adapted to be fed directly from the exhaust manifold;a divided scroll third turbocharger having one turbine scroll in direct communication with a turbine outlet of said first turbocharger and a second turbine scroll in direct communication with a turbine outlet of said second turbocharger;a third flow control valve having a valve inlet adapted to be fed from a valve outlet of the second flow control valve;a valve outlet of the third flow control valve being for connection to an exhaust;a turbine outlet of the first turbocharger being connected to the valve inlet of the third flow control valve; anda turbine outlet of said second turbocharger being connected to the valve inlet of the third flow control valve.2423. The turbocharger system according to claim , whereinthe divided scroll third turbocharger comprises a turbine wheel with two scrolls only;said two scrolls are arranged side by side on an axis of rotation thereof, or are arranged radially with respect to each other and a common axis of rotation thereof.2523. The turbocharger system according to claim , wherein the first and second independent turbochargers have respective turbine wheels rotatable in a common housing.26. The turbocharger system of claim 25 , ...

TURBINE HOUSING AND TURBOCHARGER

A turbine housing includes: a main body portion; an insertion hole, which is formed in the main body portion, and has one end opened to an outside of the main body portion of the turbine housing and another end communicated to the turbine scroll flow passage; a pipe member, which is formed separately from the main body portion, is arranged in the insertion hole, and has a communication flow passage having an inflow port as an inlet for exhaust gas and being opened to the turbine scroll flow passage; and step surfaces (step portions), which are formed on the pipe member and the insertion hole, and are opposed to each other. 1. A turbine housing , comprising:a main body portion;an insertion hole, which is formed in the main body portion, and has one end opened to an outside of the main body portion and another end communicated to a turbine scroll flow passage;a pipe member, which is formed separately from the main body portion, is arranged in the insertion hole, and has a communication flow passage, which has an inflow port for exhaust gas, and is opened to the turbine scroll flow passage; andstep portions, which are formed on the pipe member and the insertion hole, and are opposed to each other.2. A turbine housing according to claim 1 , further comprising:a key groove, which is formed in one of an outer surface of the pipe member and an inner surface of the insertion hole, and extends from one end of the insertion hole to another end side of the insertion hole; anda projection, which is formed on another of the outer surface of the pipe member and the inner surface of the insertion hole, and is fitted to the key groove.3. A turbine housing according to claim 1 , further comprising:a tongue portion, which is formed in the main body portion, and is formed at a connection portion between a downstream end of the turbine scroll flow passage and the insertion hole; andan end portion, which is located on the another end side of the insertion hole in the pipe member, and ...

SYSTEM AND METHOD FOR POWER PRODUCTION WITH SOLID FUEL COMBUSTION AND CARBON CAPTURE

The present disclosure relates to systems and methods useful for power production utilizing direct combustion of a solid fuel, such as coal, biomass, or the like. The systems and methods can combine a first power producing cycle that is an open loop or semi-closed loop cycle with a second power producing cycle that is a closed loop cycle utilizing a recycled working fluid, preferably CO. At least one stream from the open loop or semi-closed loop cycle can be used in a heating member to provide heat to the working fluid in the closed loop cycle. The solid fuel can be combusted at conditions facilitating easier removal of solids before a gaseous stream is treated and, optionally, at least partially recycled to the combustor as a recycle stream, preferably include CO. 1. A power generation system comprising: [{'sub': '2', 'a combustor configured for combusting a solid fuel with an oxidant in the presence of a recycle COstream and outputting a combustor exhaust stream;'}, 'at least one power producing member configured to receive at least a portion of the combustor exhaust stream, generate power, and output a turbine exhaust stream; and', 'one or more elements configured for recycling at least a portion of the combustor exhaust stream back to the combustor; and, 'a first power producing cycle that is an open loop or semi-closed loop cycle, the first power producing cycle comprising{'sub': '2', 'claim-text': {'sub': '2', 'at least one power producing member configured to receive the COworking fluid and generate power;'}, 'a second power producing cycle that is a closed loop cycle utilizing COas a working fluid, the second power producing cycle comprising{'sub': '2', 'wherein the power generation system includes at least one heating member configured to receive the COworking fluid from the second power producing cycle and transfer heat thereto from a stream generated from the first power producing cycle.'}2. The power generation system of claim 1 , wherein the first power ...

Engine recovery system for engine system

An energy recovery system for an engine system is disclosed. The engine system includes an engine, an exhaust conduit configured to receive exhaust gases discharged from the engine, and a first turbocharger coupled to the exhaust conduit to receive exhaust gases from the engine and provides compressed air to the engine. The energy recovery system includes a bypass conduit, a second turbocharger, and an accumulator. The bypass conduit is coupled to the exhaust conduit upstream of the first turbocharger, and facilitates a portion of exhaust gases from the exhaust conduit to bypass the first turbocharger. The second turbocharger is coupled to the bypass conduit, and is driven by the portion of exhaust gases bypassing the first turbocharger to compress air received from an ambient to a first pressure. The accumulator is in fluid communication with the second turbocharger, and stores air received from the second turbocharger at the first pressure.

Turbocharger And Drive System With Fuel Cell And Turbocharger

A turbocharger, with a turbine for expanding a first medium having a turbine housing and a turbine rotor, a compressor for compressing a second medium utilising energy extracted in the turbine during expansion of the first medium having a compressor housing and a compressor rotor. A temperature of the first medium that is to be expanded or is expanded is lower than a temperature of the second medium that is to be compressed or is compressed. The turbine rotor and the compressor rotor are directly connected to one another. 1. A turbocharger , comprising:a turbine configured to expand a first medium, comprising a turbine housing and a turbine rotor; anda compressor configured to compress a second medium utilising energy extracted in the turbine during expansion of the first medium, comprising a compressor housing and a compressor rotor,wherein a temperature of the first medium that is to be expanded or is expanded is lower than a temperature of the second medium that is to be compressed or is compressed, andwherein the turbine rotor and the compressor rotor are directly connected to one another.2. The turbocharger according to claim 1 , wherein:the turbine is a radial turbine with the turbine rotor subject to radial inflow and axial outflow,the compressor is a radial compressor with the compressor rotor subject to axial inflow and radial outflow, andthe turbine rotor and the compressor rotor are positioned back to back and directly connected to one another.3. The turbocharger according to claim 1 , wherein the turbine rotor and the compressor rotor are directly connected to one another without a shaft located in between.4. The turbocharger according to claim 1 , wherein a unit consisting of the turbine rotor and the compressor rotor is laterally mounted.5. The turbocharger according to claim 4 , whereinat least one first bearing, seen in a flow direction of the first medium, is arranged downstream of the turbine rotor, andat least one second bearing, seen in a flow ...

System for a combined turbine, compressor, shroud, and bearing case for a turbocharger

Various systems are provided for an axially split turbocharger case housing each of a turbine of a turbocharger, a compressor of the turbocharger, and a bearing of the turbocharger. In one example, an apparatus for an engine includes a first monolithic component and a second monolithic component that, when coupled together, form a turbocharger case configured to house each of a turbine, a compressor, and a bearing, the first and second monolithic components, when coupled together, also forming a compressor shroud and a turbine shroud. In further examples of the system, portions of the turbocharger case are formed of a lattice structure.

Nozzle blade

This relates to a nozzle blade in which the leading edge shape has a curved-line shape that is formed by the distance from the rotation axis of the nozzle blade to the leading edge changing depending on the nozzle blade height position, and the trailing edge shape has a straight-line shape that is formed by the distance from the rotation axis of the nozzle blade to the trailing edge being constant irrespective of the nozzle blade height position.

COMPOUND ENGINE ASSEMBLY WITH COMMON INLET

A compound engine assembly including a common air conduit having an inlet in fluid communication with ambient air, a compressor, at least one internal combustion engine having an inlet in fluid communication with an outlet of the compressor, a turbine section having an inlet in fluid communication with an outlet of the at least one internal combustion engine, the turbine section configured to compound power with the at least one internal combustion engine, and at least one heat exchanger in fluid communication with the common air conduit, each of the at least one heat exchanger configured to circulate a fluid of the engine assembly in heat exchange relationship with an airflow from the common air conduit circulating therethrough. The compressor has an inlet in fluid communication with the common air conduit upstream of the at least one heat exchanger. The internal combustion engine may be a reciprocating engine. 1. A compound engine assembly comprising:a common air conduit having an inlet in fluid communication with ambient air around the compound engine assembly;a compressor;at least one internal combustion engine having an inlet in fluid communication with an outlet of the compressor;a turbine section having an inlet in fluid communication with an outlet of the at least one internal combustion engine, the turbine section configured to compound power with the at least one internal combustion engine; andat least one heat exchanger in fluid communication with the common air conduit, each of the at least one heat exchanger configured to circulate a fluid of the engine assembly in heat exchange relationship with an airflow from the common air conduit circulating therethrough, the compressor having an inlet in fluid communication with the common air conduit upstream of the at least one heat exchanger.2. The compound engine assembly as defined in claim 1 , wherein the at least one internal combustion engine includes a reciprocating engine.3. The compound engine assembly ...

RELIEF VALVE FOR A TURBOCHARGER AND PROCESS FOR MANUFACTURING A RELIEF VALVE

The present invention relates to a relief valve () for a turbocharger, in which the crank arm () is made of a first material and the shaft () is made of a second material different from the first material used for manufacturing the crank arm (), each of the materials containing a composition that provides the necessary properties according to the application of each component of the relief valve (). The present invention also relates to a process for manufacturing the relief valve (), which allows the crank arm () and the shaft () to be manufactured separately, using different materials for the manufacture of each component. 115-. (canceled)1611. A relief valve () for a turbocharger , the relief valve () comprising:{'b': '2', '#text': 'a valve flap (); and'}{'b': ['3', '4'], '#text': 'a support element, the support element being formed by a crank arm () and a shaft (),'}{'claim-text': [{'b': '3', '#text': 'the crank arm () is made of a first material; and'}, {'b': ['4', '3'], '#text': 'the shaft () is made of a second material different to the first material used for manufacturing the crank arm ().'}], '#text': 'wherein:'}1713. The relief valve () according to claim 16 , wherein the first material used for manufacturing the crank arm () is composed of a nickel-based material with at least 30% nickel by weight.1813. The relief valve () according to claim 17 , wherein the first material used for manufacturing the crank arm () contains up to 0.08% carbon by weight claim 17 , 0.5% silicon by weight claim 17 , up to 0.5% manganese by weight claim 17 , up to 0.015% phosphorus by weight claim 17 , up to 0.01% sulphur by weight claim 17 , between 13.5% and 15.5% chrome by weight claim 17 , between 30% and 33.5% nickel by weight claim 17 , between 0.4% and 1% molybdenum by weight claim 17 , between 1.6% and 2.2% aluminum by weight claim 17 , and iron as residue.1913. The relief valve () according to claim 16 , wherein the first material used for manufacturing the crank arm ...

WASTE GATE VALVE CONTROL METHOD AND CONTROL DEVICE

A waste gate valve () of a turbocharger () is fully opened during idling after warm-up is completed in order to reduce exhaust resistance. However, during idling in an engine cold state when a cooling water temperature (TW) is below a threshold value (TW), the waste gate valve () is open-loop controlled to an intermediate opening degree that is smaller than full opening. An ignition timing is delayed (retarded) for catalyst warm-up. When the cooling water temperature (TW) reaches (t) the threshold value (TW), the opening degree of the waste gate valve () is set to full opening. When an accelerator opening degree (APO) becomes large (t) before warm-up is completed, the limitation of the opening degree is released. 16.-. (canceled)7. A waste gate valve control method for a waste gate valve which is provided to a turbocharger of an internal combustion engine , the waste gate valve control method comprising:controlling an opening degree of the waste gate valve to full opening until engine start is completed, at a time of cold start of the internal combustion engine; andcontrolling the opening degree of the waste gate valve to an intermediate opening degree which is smaller than an opening degree of the waste gate valve at a time of an idling after warm-up of the internal combustion engine, while an ignition timing retard is executed, at a time of an idling in a state in which the internal combustion engine is cold.8. The waste gate valve control method according to claim 7 , wherein at the time of the idling after the warm-up of the internal combustion engine claim 7 , the waste gate valve is controlled to full opening.9. The waste gate valve control method according to claim 7 , wherein at a time of idling and when an engine temperature is in a low temperature condition in which the ignition timing retard is executed claim 7 , the opening degree of the waste gate valve is controlled to the intermediate opening degree.10. The waste gate valve control method according to ...

Blades Having S-Shaped Profile in the Flow Direction for Radial-Type Impellers

The invention relates to an impeller for a turbomachine, in particular a radial turbomachine. The impeller has a number of blades which are held spaced apart from one another on the circumference of the impeller. The blades are designed with a radially running S-shaped contour. 1141016141626. Impeller () for a turbomachine () , in particular a radial turbomachine , having a number of blades () which are held spaced apart from one another on the circumference of the impeller () , characterized in that the blades () are designed with a radially running S-shaped contour ().21426313233. The impeller () as claimed in claim 1 , characterized in that the S-shaped contour () comprises a first circular arc segment () and a second circular arc segment () claim 1 , which transition tangentially into one another at an inflection point ().3143132. The impeller () as claimed in claim 2 , characterized in that the first and second circular arc segments ( claim 2 , ) are designed with circular arc radii r claim 2 , rwhich are identical or different from one another.414163435. The impeller () as claimed in claim 1 , characterized in that the blade () is delimited by an inlet edge () and an outlet edge ().514261640. The impeller () as claimed in any of the preceding claims claim 1 , characterized in that the S-shaped contour () of the blades () is defined by the following construction parameters ():{'sub': 'E', 'b': 34', '16, 'radius rof the leading edge () of the blade (),'}{'sub': 'S,E', 'inlet angle β,'}{'sub': 1', '2, 'b': 31', '32, 'radius r, rof the first or second circular arc segment (, ),'}{'sub': 'W', 'b': '33', 'radius rof an inflection point (),'}{'sub': 'S,A', 'outlet angle β,'}{'sub': 'A', 'radius of the outlet edge r.'}6143516. The impeller () as claimed in any of the preceding claims claim 1 , characterized in that the outlet angle βat the outlet edge () of the blade () lies between 30° and 120°.7143126. The impeller () as claimed in any of the preceding claims claim ...

Turbine for an Exhaust Gas Turbocharger of an Internal Combustion Engine

A turbine has a turbine housing with a receiving region, a turbine wheel which is disposed in the receiving region, a duct formed by the turbine housing, through which exhaust gas of an internal combustion engine can flow and which opens into the receiving region, and a tongue slide which has a tongue which is assigned to the duct and which can be displaced relative to the turbine housing about the rotational axis such that a flow cross section of the duct can be set. The exhaust gas which flows through the duct can be guided via the flow cross section into the receiving region and can be fed to the turbine wheel. The turbine is configured as a half-axial flow turbine in which a respective flow direction runs obliquely with respect to the axial direction and obliquely with respect to the radial direction of the turbine wheel. 19.-. (canceled)10. A turbine for an exhaust gas turbocharger of an internal combustion engine , comprising:a turbine housing having a receiving region;a turbine wheel which is disposed at least partly in the receiving region and is rotatable relative to the turbine housing about an axis of rotation;a channel formed by the turbine housing through which exhaust gas from the internal combustion engine is flowable and which leads into the receiving region in order to guide exhaust gas flowing through the channel into the receiving region and to the turbine wheel; anda tongue slide which has a tongue that is associated with the channel and that is slidable relative to the turbine housing about the axis of rotation, wherein via the tongue a flow cross section of the channel is adjustable, wherein exhaust gas flowing through the channel is conveyable into the receiving region and to the turbine wheel via the flow cross section;wherein the turbine is a half-axial turbine in which a relevant flow direction, in which the exhaust gas flows from the channel through the flow cross section into the receiving region and to the turbine wheel during an ...

TURBOCHARGER, VIBRATION DETECTION ASSEMBLY, AND METHOD OF USING SAME

A turbocharger is used within a vehicle and includes an electronic actuator assembly. The electronic actuator assembly includes an actuator housing coupled to at least one of the turbine housing, the compressor housing, and the bearing housing, and an accelerometer coupled to the actuator housing. The accelerometer is adapted to detect vibration of at least one of the turbine housing, the compressor housing, the bearing housing, and the actuator housing thereby obtaining acceleration data of at least one of the turbine housing, the compressor housing, the bearing housing, and the actuator housing to determine rotational speed of the turbocharger shaft. Another embodiment includes a vibration detection assembly having an accelerometer coupled to a vehicle component and the vehicle component is one or more of a turbocharger, a valve assembly, an electronically driven compressor, and a turbocharger having an integral electric motor. 1. A turbocharger for receiving exhaust gas from an internal combustion engine of a vehicle and for delivering compressed air to the internal combustion engine , said turbocharger comprising:a turbine housing defining a turbine housing interior;a turbine wheel disposed within said turbine housing interior for receiving the exhaust gas from the internal combustion engine;a turbocharger shaft coupled to and rotatable by said turbine wheel;a compressor housing defining a compressor housing interior;a compressor wheel disposed within said compressor housing interior and coupled to said turbocharger shaft, with said compressor wheel being rotatable by said turbocharger shaft for delivering compressed air to the internal combustion engine;a bearing housing coupled to and disposed between said turbine housing and said compressor housing, with said bearing housing defining a bearing housing interior, and with said turbocharger shaft disposed within said bearing housing interior; and an actuator housing coupled to at least one of said turbine ...

SUPERCHARGED INTERNAL COMBUSTION ENGINE WITH MIXED-FLOW TURBINE

The disclosure relates to a supercharged internal combustion with a mixed flow turbine. In one example, a system comprises a mixed-flow turbine having a turbine shaft coupled to a compressor, a plurality of guide vanes arranged in an inlet of the mixed-flow turbine, a plurality of bevel wheels each coupled to a respective guide vane via a respective guide vane shaft, a pinion wheel with a plurality of teeth to mesh with the plurality of bevel wheels, and a pinion drive coupled to one of the bevel wheels. 1. A supercharged internal combustion engine , comprising:an intake system for the supply of charge air;an exhaust-gas discharge system for the discharge of the exhaust gas; and a turbine housing having an inlet region;', 'at least one impeller arranged in the turbine housing and mounted on a rotatable turbine shaft;', 'an adjustable guide device arranged in the inlet region upstream of the at least one impeller, the adjustable guide device comprising one or more guide vanes, each guide vane arranged on a guide vane-specific shaft;', 'an adjustment device configured to rotate the one or more guide vanes, the adjustment device having a rotatable adjustment ring which is mounted coaxially with respect to the turbine shaft of the mixed-flow turbine, the rotatable adjustment ring having an external toothing; and', 'one or more gearwheels each arranged on a respective guide vane-specific shaft, each gearwheel configured to mesh with the external toothing of the adjustment ring, such that the one or more guide vanes are adjusted by rotation of the adjustment ring., 'at least one mixed-flow turbine which is arranged in the exhaust-gas discharge system, the mixed-flow turbine comprising2. The supercharged internal combustion engine as claimed in claim 1 , wherein each gearwheel is arranged on an outer circumference of the adjustment ring.3. The supercharged internal combustion engine as claimed in claim 1 , wherein the at least one mixed-flow turbine arranged in the exhaust ...

TURBOCHARGER ASSEMBLY

A turbocharger assembly can include a center housing; a turbine housing; and an insert disposed between the center housing and the turbine housing where a surface of the turbine housing and a first surface of the insert define a volute and where a surface of the center housing and a second surface of the insert define a chamber. 1. A turbocharger assembly comprising:a center housing;a turbine housing; andan insert disposed between the center housing and the turbine housing wherein a surface of the turbine housing and a first surface of the insert define a volute and wherein a surface of the center housing and a second surface of the insert define a chamber.2. The turbocharge assembly of comprising a turbine wheel wherein the insert comprises an inner edge and an outer edge wherein the inner edge defines a radial clearance with respect to an outermost edge of the turbine wheel.3. The turbocharger assembly of wherein the insert comprises an annular ring portion and segments that extend at least in part radially inwardly from the annular ring portion.4. The turbocharger assembly of wherein the insert comprises a load applied via contact with the center housing and via contact with the turbine housing.5. The turbocharger assembly of wherein the turbine housing comprises a cast turbine housing.6. The turbocharger assembly of wherein the turbine housing comprises a wastegate opening and a wastegate shaft bore.7. The turbocharger assembly of wherein the insert comprises a material of construction that comprises a density that is less than a material of construction of the turbine housing.8. The turbocharger assembly of wherein the insert comprises a thermal conductivity that is less than a thermal conductivity of the turbine housing.9. The turbocharger assembly of wherein the insert comprises a resilient insert.10. The turbocharger assembly of wherein the resilient insert comprises radial channels that form segments.11. The turbocharger assembly of wherein the turbine ...

VARIABLE DISPLACEMENT EXHAUST TURBOCHARGER EQUIPPED WITH VARIABLE NOZZLE MECHANISM

A variable displacement exhaust turbocharger is provided with a plurality of nozzle vanes that are rotatably supported by a nozzle mount, a drive ring that is interlocked with an actuator and fits to a guide part of the nozzle mount, a lever plate having one end coupled to the drive ring and the other end coupled to the nozzle vane, and a variable nozzle mechanism that varies the vane angle of the nozzle vane by rotating the drive ring. A bulge suppressing portion is provided for absorbing bulging occurring on an outer peripheral surface of the guide part, the bulging being caused by the press-fitting of a nail pin into a press-fitting hole in a direction slightly toward the rotational axis with respect to the guide section and following the axial direction of the nozzle mount. 1. A variable displacement exhaust turbocharger which is equipped with a variable nozzle mechanism and is driven by exhaust gas from an engine , the variable displacement exhaust turbocharger comprising:a plurality of nozzle vanes supported rotatably by a nozzle mount which is fixed to a case including a turbine casing of the variable displacement exhaust turbocharger;a drive ring which is interlocked with an actuator and is fitted to an annular guide part protruding from a center part of the nozzle mount in an axial direction;a plurality of lever plates each of which is fitted to a groove formed in the drive ring at one end via a connection pin and is connected to the nozzle vane at the other end;the variable nozzle mechanism configured to swing the plurality of lever plates by rotation of the drive ring so as to change a vane angle of the plurality of nozzle vanes; anda press-fitting pin which is press-fit to a side of the nozzle mount at a position closer to a rotation axis than the annular guide part,wherein a bulge suppressing portion is provided in at least one of the press-fitting pin or a press-fitting hole formed in the axial direction of the nozzle mount so as to absorb and suppress ...

COMPOUND CYCLE ENGINE

A compound cycle engine having an output shaft; at least two rotary units each defining an internal combustion engine, a first stage turbine, and a turbocharger is discussed. The first stage turbine includes a rotor in driving engagement with the output shaft between two of the rotary units. The exhaust port of each rotary unit is in fluid communication with the flowpath of the first stage turbine upstream of its rotor. The outlet of the compressor of the turbocharger is in fluid communication with the inlet port of each rotary unit. The inlet of the second stage turbine of the turbocharger is in fluid communication with the flowpath of the first stage turbine downstream of its rotor. The first stage turbine has a lower reaction ratio than that of the second stage turbine. A method of compounding at least two rotary engines is also discussed. 1. A compound cycle engine comprising:an output shaft;at least two rotary units each defining an internal combustion engine including an engine rotor sealingly and rotationally received within a respective housing, each housing defining an inlet port and an exhaust port, the engine rotor of each of the at least two rotary units being in driving engagement with the output shaft;a first stage turbine including a flowpath and a turbine rotor having a circumferential array of blades extending across the flowpath, the turbine rotor being in driving engagement with the output shaft; anda turbocharger including a compressor and a second stage turbine in driving engagement with one another; wherein:an outlet of the compressor is in fluid communication with the inlet port of each housing;the exhaust port of each housing is in fluid communication with a first portion of the flowpath of the first stage turbine, the first portion of the flowpath being located upstream of the circumferential array of blades of the first stage turbine;an inlet of the second stage turbine is in fluid communication with a second portion of the flowpath of the ...

VARIABLE-GEOMETRY TURBOCHARGER

A variable-geometry turbocharger may include an internal ring provided in a turbine housing in a shape enclosing a turbine wheel and having fixed vanes provided in a circumferential direction thereof; and an external ring provided in a shape enclosing the internal ring and having rotary vanes rotatably provided in a circumferential direction thereof, the rotary vanes being paired with the fixed vanes in a state in which the rotary vanes remain in normal contact with the fixed vanes, wherein the internal ring and the external ring are rotated relative to each other by a predetermined angle, and according to the relative rotation, the rotary vanes are rotated and relative positions of the fixed vanes paired with the rotary vanes are changed, which causes a total length of each vane pair including a rotary vane and a fixed vane to be changed such 1. A variable-geometry turbocharger comprising:an internal ring provided in a turbine housing, enclosing a turbine wheel, and having fixed vanes fixedly provided in a circumferential direction of the internal ring; andan external ring enclosing the internal ring and having rotary vanes rotatably provided in a circumferential direction of the external ring, wherein the rotary vanes are paired with the fixed vanes in a state in which the rotary vanes continuously remain in contact with the fixed vanes,wherein the internal ring and the external ring are rotated relative to each other in a predetermined angle, andwherein according to the relative rotation between the internal ring and the external ring, the rotary vanes are rotated and relative positions of the fixed vanes with respect to the rotary vanes paired with the fixed vanes are changed, which causes a total length of each vane pair including a rotary vane and a fixed vane to be changed such that a sectional area of a flow path formed between adjacent vane pairs varies.2. The variable-geometry turbocharger of claim 1 ,wherein the internal ring is rotatably provided ...

Housing assembly for a turbocharger and method for fixing multiple connections to a housing

A housing assembly comprising a housing that has at least one first connection opening and one second connection opening, a first connecting piece with a first flange and a second connecting piece with a second flange. The first connecting piece is connected to the first connection opening and the second connecting piece is connected to the second connection opening. The housing additionally has a projection with an overhang. The A locking part of the first flange is arranged in locking engagement with the overhang, and the first flange and the second flange are configured in such a way and arranged with respect to one another that a turning of the first flange is prevented by the second flange. A corresponding method of fixing multiple connections to a housing is also provided.

PASSIVE INLET-ADJUSTMENT MECHANISMS FOR COMPRESSOR, AND TURBOCHARGER HAVING SAME

A centrifugal compressor for a turbocharger includes a passive inlet-adjustment mechanism in an air inlet for the compressor, operable to move between an open position and a closed position solely by aerodynamic forces on the mechanism. The inlet-adjustment mechanism includes a plurality of flexible vanes collectively forming a duct, and an effective diameter of the air inlet at the inducer portion of the compressor wheel is determined by a trailing edge inside diameter of the duct. The vanes are movable solely by aerodynamic forces exerted on the vanes by the air flowing to the compressor wheel. The duct has a tapering configuration when the vanes are in a relaxed state, but under aerodynamic force the vanes flex outwardly and increase the trailing edge inside diameter of the duct, thereby increasing an effective diameter of the air inlet. 1. A turbocharger , comprising:a turbine housing and a turbine wheel mounted in the turbine housing and connected to a rotatable shaft for rotation therewith, the turbine housing receiving exhaust gas and supplying the exhaust gas to the turbine wheel;a centrifugal compressor assembly comprising a compressor housing and a compressor wheel mounted in the compressor housing and connected to the rotatable shaft for rotation therewith, the compressor wheel having blades and defining an inducer portion, the compressor housing defining an air inlet for leading air generally axially into the inducer portion of the compressor wheel, the compressor housing further defining a volute for receiving compressed air discharged generally radially outwardly from the compressor wheel, the air inlet having an inner surface that extends for an axial length along a downstream direction, followed by an inlet-adjustment mechanism disposed in the air inlet, followed by a shroud surface that is adjacent to outer tips of the blades of the compressor wheel;the inlet-adjustment mechanism comprising a plurality of vanes constructed of a flexible material, ...

Oil deflector

An oil deflector includes a segment array extending radially from a sleeve portion defining a longitudinal axis and configured for mounting on a shaft. The segment array includes a plurality of segments arranged circumferentially relative to the longitudinal axis and defines at least one oil diverting feature configured to create a pressure differential proximate the segment array or across a surface of the segment array during rotation of the oil deflector about the longitudinal axis. The segment array may define an oil diverting feature configured as a radially tapered peripheral surface, an axially inclined annular surface, at least one slot inclined relative to an annular surface of the array, and/or a combination of these configured to divert oil axially and/or radially from the oil deflector during rotation by the shaft in use.

TURBOCHARGER

A turbocharger includes a semi-floating metal. The semi-floating metal is provided with a supply opening configured to supply oil to an inner bearing section. The turbocharger is provided with: an oil supply path which extends from inside of a bearing housing to the supply opening, and feeds the oil to be supplied to the inner bearing section; a removal section which changes a flowing direction of the oil supplied from an upstream side to separate minute foreign matter in the oil; and a conveyance path and a retaining region which collect the minute foreign matter separated by the removal section so as to prevent the minute foreign matter from mixing again with the oil flowing toward the supply opening. 1. A turbocharger comprising:a turbine wheel constituting a turbine;a compressor wheel constituting a compressor;a rotating shaft connecting the turbine wheel and the compressor wheel to each other;a housing which houses at least the rotating shaft; anda semi-floating metal forming a fluid bearing between the rotating shaft and the housing, whereinthe semi-floating metal is provided with a supply opening configured to supply oil to an inner bearing section formed between the semi-floating metal and the rotating shaft,the turbocharger is provided with an oil supply path extending from inside of the housing to the supply opening and configured to feed the oil to be supplied to the inner bearing section,the oil supply path is provided with a removal section configured to change a flowing direction of the oil supplied from an upstream side to separate minute foreign matter in the oil, anda collecting section is provided to collect the minute foreign matter separated by the removal section so as to prevent the minute foreign matter from mixing again with the oil flowing toward the supply opening.2. The turbocharger according to claim 1 , whereinthe collecting section comprises:a retaining region configured to retain the minute foreign matter separated by the removal ...

TURBOCHARGER

This turbocharger (A) is provided with: a nozzle flow passage () for radially inwardly guiding gas from a scroll flow passage () and supplying the gas to a turbine wheel (); and a nozzle mount () provided on the bearing housing () side of the nozzle flow passage (). The turbocharger (A) is further provided with: a vane () for adjusting the amount of introduced gas in the nozzle flow passage (); and a heat shielding part () for minimizing heat transfer across the nozzle mount () from the turbine housing () side to the bearing housing () side. 15-. (canceled)6. A turbocharger comprising:a rotating shaft which extends along an axis;a turbine wheel which is provided on a first end portion side of the rotating shaft;a compressor wheel which is provided on a second end portion side of the rotating shaft;a bearing housing which rotatably supports the rotating shaft;a turbine housing which accommodates the turbine wheel;a scroll flow path which is formed in the turbine housing, is continuous in a circumferential direction to be located radially outside the turbine wheel, and allows a gas rotating the turbine wheel to flow therethrough;a nozzle flow path which allows the gas to be introduced radially inward from the scroll flow path and supplies the gas to the turbine wheel;a nozzle mount which is provided on the bearing housing side with respect to the nozzle flow path;a vane which is rotatably supported by the nozzle mount and adjusts an amount of the gas introduced into the nozzle flow path; anda heat shielding portion which suppresses an increase in a quantity of heat transmitted from the turbine housing side to the bearing housing side with the nozzle mount interposed therebetween;wherein the heat shielding portion is a mount outer peripheral portion heat shielding material provided between an end portion radially outside the nozzle mount and at least one of the bearing housing or the turbine housing7. The turbocharger according to claim 6 ,wherein a rotating mechanism ...

Supercharger and internal combustion engine

A supercharger includes a first introduction part having a first flow channel; a second introduction part having a second flow channel; a chamber into which the exhaust gas is introduced; an outlet part having one or a plurality of outlet flow channels; and a valve member housed in the chamber. The chamber has a first introduction port that leads to the first flow channel, a second introduction port that leads to the second flow channel, and one or a plurality of outlet ports that lead to the outlet flow channel. A main circulation space is secured. The valve member is capable of opening or closing, and allows two or more opened ports among the first introduction port, the second introduction port, and the outlet port to communicate with each other through the main circulation space.

CENTRIFUGAL COMPRESSOR FOR A TURBOCHARGER, HAVING SYNERGISTIC PORTED SHROUD AND INLET-ADJUSTMENT MECHANISM

A centrifugal compressor for a turbocharger includes an inlet-adjustment mechanism in an air inlet for the compressor, operable to move between a closed position, an open position, and a super-open position. The compressor also includes a ported shroud system. The inlet-adjustment mechanism includes a plurality of blades disposed about the air inlet and movable radially inwardly and outwardly for defining the various positions. In the closed position, the effective diameter of air inlet is reduced and the blades block flow through the ported shroud system. In the open position, the blades still block the ported shroud but the effective inlet diameter is increased relative to the closed position. In the super-open position, the blades unblock the ported shroud so that an additional amount of flow can pass through the ported shroud, thereby shifting the compressor's choke flow line to higher flow rates. 1. A turbocharger , comprising:a turbine housing and a turbine wheel mounted in the turbine housing and connected to a rotatable shaft for rotation therewith, the turbine housing receiving exhaust gas and supplying the exhaust gas to the turbine wheel;a centrifugal compressor assembly comprising a compressor housing and a compressor wheel mounted in the compressor housing and connected to the rotatable shaft for rotation therewith, the compressor wheel having blades and defining an inducer portion, the compressor housing having an air inlet wall defining an air inlet for leading air generally axially into the compressor wheel, the compressor housing further defining a shroud surface that is adjacent to and follows a radially outer contour of the compressor wheel;a compressor inlet-adjustment mechanism disposed in the air inlet of the compressor housing and movable between a closed position and a super-open position, the inlet-adjustment mechanism comprising a plurality of blades that are distributed about a circumference of the air inlet and that collectively form a ...

WASTEGATE FOR TURBINE

A turbine comprises a turbine housing defining a turbine inlet upstream of a turbine wheel and a turbine outlet down-stream of the turbine wheel; and a wastegate valve assembly comprising at least one movable valve member mounted on a movable support member within a wastegate chamber which communicates with the turbine inlet upstream of the turbine, and has one or more chamber outlets which communicate with an outlet of the turbine. The valve member is permitted to articulate slightly about the support member, with the amount of articulation in respective directions being limited by collisions between a respective limit point on a limit area on a rear surface of a sealing portion of the valve member and a respective limit point on limit area on a front surface of the support member. 1. A wastegate assembly for a turbine comprising: a turbine wheel; a turbine housing defining at least one gas inlet upstream of the turbine wheel and a turbine outlet downstream of the turbine wheel; and a wastegate chamber communicating with the at least one gas inlet via one or more wastegate ports;the wastegate assembly comprising:a support member; andat least one valve member for blocking a corresponding wastegate port, the or each valve member being mounted on the support member via a pin portion of the valve member for articulation about the support member, having a central axis and comprising a sealing portion which extends away from the axis to an outer edge of the valve member, the sealing portion having a sealing surface transverse to the axis for blocking one of the one or more wastegate ports upon the sealing surface of the valve member being pressed against a rim of the wastegate port;a rear surface of the sealing portion opposite to the sealing surface including an limit area of the valve member radially inward of the outer edge of the sealing portion of the valve member, the limit area of the valve member encircling the pin portion of the valve member and at each angular ...

Exhaust Gas Turbocharger

An exhaust gas turbocharger includes a turbine casing () within which a turbine wheel () is rotatably arranged relative to an axis of rotation (). A guide vane ring () is non-rotatably arranged which comprises variable guide vanes () which are arranged upstream of the turbine wheel () with respect to an exhaust gas flow. The guide vane ring () is centered by means of a matched pair of two contact surfaces () pressed against each other with respect to the turbine casing (), of which at least the one contact surface ( or , respectively) is formed conically. 112.-. (canceled)13. An exhaust gas turbocharger , comprising:{'b': '4', 'a turbine casing ();'}{'b': 10', '1', '4, 'a turbine wheel () which is rotatably arranged relative to an axis of rotation () within the turbine casing ();'}{'b': 22', '4, 'a guide vane ring () which is non-rotatably arranged within the turbine casing (); and'}{'b': 44', '10', '44', '22, 'variable guide vanes () which are arranged upstream of the turbine wheel () with respect to an exhaust gas flow, the variable guide vanes () being a part of the guide vane ring (),'}{'b': 22', '24', '26', '4', '24', '26, 'wherein the guide vane ring () is centered by a matched pair of two contact surfaces (, ) pressed against each other with respect to the turbine casing (), of which at least one contact surface ( or , respectively) is conical, and'}{'b': 26', '61', '22, 'wherein the at least one conical contact surface () is disposed at a radial outer zone () of the guide vane ring ().'}14. The exhaust gas turbocharger according to claim 13 ,{'b': 24', '26', '14', '60, 'wherein the matched pair of two contact surfaces (, ) forms a seal which essentially separates a space () within the exhaust gas flow from a holding space (), and'}{'b': 58', '60, 'wherein a connection mechanism () is arranged in the holding space (), and'}{'b': 58', '42', '44', '66', '42, 'wherein the connection mechanism () connects swivel shafts () for varying the variable guide vanes () ...

TURBOCHARGER IMPELLER

A turbocharger impeller includes: a cylindrical boss portion disposed around a rotary axis; a hub portion connected to the boss portion and extends in a radial direction of the rotary axis; and a blade portion protruding from the boss portion and the hub portion toward a tip end side in the direction of the rotary axis and the radial direction. At least a part of an outer peripheral part of the hub portion in the radial direction or a part of the blade portion is provided with a resin second section and the second section is bonded to an aluminum first section. The turbocharger impeller includes the aluminum first section and the resin second section. 110.-. (canceled)11. A turbocharger impeller comprising:a cylindrical boss portion disposed around a rotary axis;a hub portion connected to the boss portion and extends in a radial direction of the rotary axis; anda blade portion protruding from the boss portion and the hub portion toward a tip end side in the direction of the rotary axis and the radial direction,wherein at least a part of an outer peripheral part of the hub portion in the radial direction or a part of the blade portion is provided with a resin second section and the second section is bonded to an aluminum first section,wherein a base part of the blade portion connected to the hub portion is formed as the first section and a part protruding from the base part of the blade portion is formed as the second section, andwherein the aluminum first section and the resin second section constitute the turbocharger impeller.12. The turbocharger impeller according to claim 11 ,wherein the second section is provided on an outer peripheral side of the first section.13. The turbocharger impeller according to claim 12 ,wherein the second section is provided on an outer peripheral side in relation to a predetermined radius and the first section is provided on an inner peripheral side in relation to the predetermined radius.14. The turbocharger impeller according to ...

Heat Exchanger for Gas Turbine Engine with Support Damper Mounting

A gas turbine engine has a core engine with a compressor section and a turbine section. The compressor section includes a low pressure compressor and a high pressure compressor. A cooling air system taps compressed air and passes the compressed air through a heat exchanger. Cooling air passes over the heat exchanger to cool the compressed air, which is returned to the core engine to provide a cooling function. The heat exchanger is mounted through a flexible mount allowing movement between a static structure and the heat exchanger.

COMPRESSOR RECIRCULATION INTO ANNULAR VOLUME

To solve the problems of compressor wheel blade flow separation causing surge type noises when an exhaust gas recirculation (EGR) duct introduces into the compressor exhaust gases to be returned to the engine, the exhaust gas is fed into an annular volume, defined between inner and outer walls or an annular transition cavity shaped as a radially expanded, axially flattened cylindrical space in the compressor inlet, so that the generally unidirectional radial flow from an EGR duct is re-directed and organized as it is turned from generally radial to generally axial, merging with the general inlet flow and presenting the compressor wheel with airflow of “circumferentially uniform” flow velocity. 1. A low pressure exhaust gas return (EGR) system for an internal combustion engine comprising:a compressor for compressing air to be supplied to the engine;a turbine stage including a turbine housing having an exhaust gas inlet for receiving exhaust gas from said engine, and an exhaust gas outlet, and a turbine wheel driven by the exhaust gas from the engine;an exhaust gas return duct by which exhaust gases to be returned to the engine are introduced to the compressor; anda boost air duct by which the air compressed in the compressor is supplied to the engine,wherein said compressor comprises:{'b': 14', '15', '14', '22, 'a compressor housing including a compressor inlet () and a compressor discharge (), said compressor inlet () being defined by a channel wall () having a first circumference and having a center,'}{'b': 20', '14', '15, 'a compressor wheel () mounted for rotation within said compressor housing between said compressor inlet () and compressor discharge (),'}{'b': 14', '16', '14', '14, 'an annular cavity defined between inner and outer channel walls, or an annular transition cavity forming by a radially expanded cross-sectional area of the channel wall in the compressor inlet, arranged about the entire circumference of the compressor inlet () for introducing air ...

SYSTEM FOR PRODUCING ENERGY OR TORQUE

The invention relates to a system () for producing energy or torque, comprising: a generator designed so as to generate energy or torque from a gas introduced at an admission of the generator; at least two compressors () for compressing the gas at the admission of the generator; and a pipeline system () in which the pipes (Ce, Cs) are designed such that they can be opened or closed in order to selectively place said compressors () in series or in parallel. 1. A system for producing energy or torque , comprising:a generator configured to generate energy or torque from a gas fed into an intake of the generator;at least two compressors for the gas at the intake of the generator; anda ducting system in which ducts are opened or closed to selectively arrange said compressors in series or in parallel.2. The system as claimed in claim 1 , wherein:the gas inlet of each compressor is linked to a respective first duct for bringing gas into said compressor, the first ducts being linked to a shared gas intake duct, at least one gas guiding device being configured to control the flow rate between the shared gas intake duct and at least one of the first ducts,the gas outlet of each compressor is linked to a respective second duct for taking gas out of said compressor, the second ducts being linked to a shared gas outlet duct, at least one gas guiding device being designed configured to control the flow rate between at least one of the second ducts and the shared gas outlet duct.3. The system as claimed in claim 1 , wherein a third duct links the gas outlet of one of the compressors to the gas inlet of the other compressor claim 1 , a gas guiding device being arranged in said duct to prevent or enable the flow of gas in the third duct such as to selectively arrange the two compressors in series or otherwise.4. The system as claimed in claim 3 , wherein the third duct includes a heat exchanger designed configured to cool the incoming gas in the compressor located downstream.5. The ...

DRIVING DEVICE, VALVE APPARATUS INCLUDING THE SAME, AND LINK DRIVING MECHANISM FOR TURBOCHARGER

A driving device includes: a shaft; and a cylindrical bush having an insertion hole into which the shaft can be inserted. The insertion hole includes an opening portion having an inner diameter decreasing from a first end surface toward a second end surface of the bush, and a small-diameter hole portion extending from an end of the opening portion to the second end surface. The shaft includes a shaft portion having an outer diameter smaller than an inner diameter of the small-diameter hole portion, and an abutment portion having an outer diameter greater than the inner diameter of the small-diameter hole portion. The bush has a sealing surface defining the opening portion. The abutment portion of the shaft abuts on the sealing surface of the bush in an axial direction of the insertion hole to seal a gap formed between the shaft and the bush inside the insertion hole. 19-. (canceled)10. A driving device comprising:a shaft; anda cylindrical bush having an insertion hole into which the shaft can be inserted,the insertion hole including an opening portion having an inner diameter decreasing from a first end surface toward a second end surface of the bush, and a small-diameter hole portion extending from an end of the opening portion to the second end surface,the shaft including a shaft portion having an outer diameter smaller than an inner diameter of the small-diameter hole portion, and an abutment portion having an outer diameter greater than the inner diameter of the small-diameter hole portion,the bush having a sealing surface of truncated cone shape configured as a flat surface extending obliquely inward from an inner peripheral edge of the first end surface to the end of the opening portion,wherein the driving device is configured such that the abutment portion of the shaft abuts on the sealing surface of the bush in an axial direction of the insertion hole so as to seal a gap formed between the shaft and the bush inside the insertion hole.11. The driving device ...

Turbocharger Assembly

A turbocharger assembly () comprises a turbine (), a compressor (), a housing (), one or more electronic components () and a pettier device (). The pettier device () is configured to provide electrical power to the one or more electronic components (). 1. A turbocharger assembly comprising:a turbine;a compressor;a housing;one or more electronic components; anda peltier device;wherein the peltier device is configured to provide electrical power to the one or more electronic components.2. The turbocharger assembly of claim 1 , wherein the peltier device is configured to provide electrical power to the one or more electronic components for a time period which is at least around 10 milliseconds.3. The turbocharger assembly of claim 1 , wherein the peltier device is configured to provide electrical power to the one or more electronic components following the termination of power supply to the one or more electronic components by another power source.4. The turbocharger assembly of claim 3 , wherein the one or more electronic components comprises a processor and a memory claim 3 , the peltier device being configured to provide electrical power following the termination of power supply to the processor by another power source to allow data to be written to the memory.5. (canceled)6. (canceled)7. The turbocharger assembly of claim 1 , wherein the peltier device is mounted to a controller of the turbocharger assembly.8. The turbocharger assembly of claim 7 , wherein the controller is mounted to the housing of the turbocharger assembly.9. The turbocharger assembly of claim 1 , wherein the peltier device has a heatsink on a cold side of the peltier device.10. The turbocharger assembly of claim 1 , wherein the one or more electronic components comprises a sensing device.11. The turbocharger assembly of wherein the sensing device is a temperature sensor.12. The turbocharger assembly of claim 11 , wherein the temperature sensor is a thermocouple.13. A method of providing power to ...

TURBOCHARGER WITH PREDETERMINED BREAKING POINT FOR AN INTERNAL COMBUSTION ENGINE

Disclosed is a turbocharger for an internal combustion engine, having a bearing housing. A turbocharger rotor is mounted to be rotatable in the bearing housing about the rotor axis of rotation of its rotor shaft, wherein a turbine wheel is arranged for conjoint rotation on the rotor shaft and in a turbine housing fixed on the bearing housing. Between the rotor shaft and the bearing housing, an oil seal for sealing the bearing housing with respect to the turbine housing is arranged between the turbine wheel and a radial bearing associated with the turbine wheel in order to seal the bearing housing with respect to the turbine housing. A predetermined breaking point is formed for the turbocharger rotor of the turbocharger which lies in a breaking point region and extends axially between the turbine wheel back and an axial end, facing the turbine wheel back, of the rotor-shaft oil seal. 1. A turbocharger for an internal combustion engine , comprising:a bearing housing having a compressor side and a turbine side and a bearing housing interior,a turbine housing, which is fixed mechanically on the bearing housing on the turbine side;a turbocharger rotor, which has a rotor shaft and a turbine wheel, wherein the rotor shaft of the turbocharger rotor is rotatably mounted in the bearing housing by means of at least two radial bearings, and the turbine wheel is arranged for conjoint rotation on a turbine end of the rotor shaft and in the turbine housing, andat least one turbine-side rotor-shaft oil seal for sealing the bearing housing interior with respect to the turbine housing, the seal being arranged on the rotor shaft and between the rotor shaft and the bearing housing, wherein, axially in relation to a rotor axis of rotation, the turbine-side rotor-shaft oil seal is arranged on the rotor shaft between a turbine wheel back, which faces the bearing housing, and a radial bearing closest to the turbine wheel,wherein a predetermined breaking point is formed for the turbocharger ...

Internal combustion engine with turbocharger

An internal combustion engine with a turbocharger according to an embodiment includes a cylinder block internally including a plurality of cylinders, a cylinder head disposed on top of the cylinder block, and internally including a plurality of exhaust flow passages through which exhaust air discharged from each of the plurality of cylinders flows, and the turbocharger including a rotational shaft, a turbine wheel, and a compressor wheel, the turbine wheel being disposed at one end of the rotational shaft, the compressor wheel being disposed at the other end of the rotational shaft. At least the turbine wheel of the turbocharger is arranged inside the cylinder head. The cylinder head internally includes a plurality of scroll passages for introducing the exhaust air flowing through the plurality of exhaust flow passages to the turbine wheel, the plurality of scroll passages including a first scroll passage for introducing the exhaust air from a first range in a circumferential direction of the turbine wheel to the turbine wheel, and a second scroll passage for introducing the exhaust air from a second range, which is different from the first range in the circumferential direction of the turbine wheel, to the turbine wheel.

Remanufactured Turbocharger Shaft and Method

A turbocharger includes a center housing, a turbine connected on one side of the center housing, the turbine including a turbine wheel connected to a shaft, the shaft extending through the center housing, and a compressor connected on an opposite side of the center housing, the compressor including a compressor wheel connected to the shaft opposite the turbine wheel. The shaft includes a cylindrical body having a centerline, a bore extending into the body adjacent the compressor wheel, and a stublet having an internal end engaged in the bore, and an external end connected to the compressor wheel. 1. A turbocharger , comprising:a center housing;a turbine connected on one side of the center housing, the turbine including a turbine wheel connected to a shaft, the shaft extending through the center housing;a compressor connected on an opposite side of the center housing, the compressor including a compressor wheel connected to the shaft opposite the turbine wheel; a body having a centerline,', 'a bore extending into the body adjacent the compressor wheel,', 'a stublet having an internal end engaged in the bore, and an external end connected to the compressor wheel., 'the shaft including2. The turbocharger of claim 1 , wherein the bore is a tapered bore including an entry portion and a threaded portion disposed adjacent the entry portion opposite the compressor wheel.3. The turbocharger of claim 2 , wherein the stublet further includes a tapered portion disposed between the internal and external ends claim 2 , the tapered portion having a smaller diameter adjacent the internal end and a larger diameter adjacent the external end.4. The turbocharger of claim 3 , wherein the larger diameter has a close fit with an internal diameter of the entry portion.5. The turbocharger of claim 1 , wherein the internal end further includes a tip that matingly engages a blind end of the bore.6. The turbocharger of claim 1 , wherein the internal end of the stublet threadably engages the ...

ALUMINUM OXIDE PROTECTIVE COATINGS ON TURBOCHARGER COMPONENTS AND OTHER ROTARY EQUIPMENT COMPONENTS

Embodiments of the present disclosure generally relate to protective coatings on turbocharger components, such as turbine wheels and compressor wheels, and other rotary equipment components and methods for depositing the protective coatings on such components. In one or more embodiments, a coated turbocharger component is provided and includes a metallic substrate containing a nickel-based alloy or superalloy, a cobalt-based alloy or superalloy, a stainless steel, or a titanium-aluminum alloy and a protective coating disposed on the metallic substrate. The protective coating contains an aluminum oxide having a purity of greater than 99 atomic percent (at %). In some examples, the metallic substrate is a turbine wheel, a compressor wheel, an impeller, a fan blade, a disk, a heat shield, a pulley, or a shaft. 1. A coated turbocharger component , comprising:a metallic substrate comprising a nickel-based alloy, a cobalt-based alloy, a stainless steel, or a titanium-aluminum alloy, wherein the metallic substrate is a turbine wheel, a compressor wheel, an impeller, a fan blade, a disk, a heat shield, a pulley, or a shaft; anda protective coating disposed on the metallic substrate, wherein the protective coating comprises an aluminum oxide having a purity of greater than 99 atomic percent (at %).2. The coated turbocharger component of claim 1 , wherein the aluminum oxide has a purity of 99.9 at % or greater.3. The coated turbocharger component of claim 1 , wherein the aluminum oxide has a purity of 99.999 at % or greater.4. The coated turbocharger component of claim 1 , wherein the aluminum oxide comprises one or more elements selected from hafnium claim 1 , titanium claim 1 , chromium claim 1 , yttrium claim 1 , zirconium claim 1 , niobium claim 1 , platinum claim 1 , palladium claim 1 , silicon claim 1 , rhodium claim 1 , ytterbium claim 1 , strontium claim 1 , barium claim 1 , lanthanide claim 1 , cerium claim 1 , neodymium claim 1 , samarium claim 1 , gadolinium claim ...

Turbocharger utilizing variable-camber turbine guide vane system

A turbocharger includes a compressor section having a compressor housing and a compressor wheel and a turbine section having a turbine housing and a turbine wheel drivingly connected to the compressor wheel. At least one of the compressor housing and the turbine housing includes a variable camber vane system including an inner ring of airfoils and an outer ring of airfoils with one of the inner and outer rings of airfoils being movable relative to the other.

Bearing device and exhaust turbine supercharger

The purpose of the invention is to reduce bearing loss due to lubricating oil. This invention comprises: a rotary shaft (14); a journal bearing (22) that is provided to the rotary shaft (14) and that rotatably supports the rotary shaft (14); a flange part (17b) having an opposing surface part (17bb) that is arranged so as to oppose a side surface part (22d) of the journal bearing (22) with a gap (D) therebetween in the axial direction in which the rotary shaft (14) extends; and a recess part (22e) provided in the side surface part (22d) or the opposing surface part (17bb). In the projected area of the journal bearing (22) in the axial direction, the area of a section including the recess part (22e) and not forming the gap (D) is larger than the area in which the side surface part (22d) and the opposing surface part (17bb) form the gap (D).

Compressor, turbine and turbocharger

A compressor for compressing a gas, the compressor comprising: a housing having an axial inlet and an annular outlet volute; an impeller wheel including a plurality of blades, the wheel being rotatably mounted within the housing between the inlet and outlet volute; the axial inlet being defined by a tubular inducer portion of the housing and the annular outlet volute being defined by an annular diffuser passage surrounding the impeller, the diffuser having an annular outlet communicating with the outlet volute; the housing having an inner wall defining a surface located in close proximity to radially outer edges of the impeller blades which sweep across the surface as the impeller wheel rotates; wherein the compressor housing incorporates at least one section comprised of a deformable, energy absorbing material arranged to deform and absorb energy generated as a result of impeller wheel failure. A turbine incorporating similar deformable, energy absorbing materials is also described, as are turbochargers incorporating such a compressor and/or turbine.

Hub-Less And Nut-Less Turbine Wheel And Compressor Wheel Design For Turbochargers

A turbocharger for an internal combustion engine is provided, where the turbocharger includes a housing, a shaft, a turbine wheel, and a compressor wheel. The shaft is rotatable with respect to the housing and defines a centerline. The turbine wheel is mounted to the shaft and is disposed within the housing. The compressor wheel is also mounted to the shaft and is disposed within the housing. The turbine wheel and/or the compressor wheel has a plurality of blades with leading edges that converge at an apex. The apex is aligned with the centerline. A method of constructing a turbocharger is also provided, where the method includes the step of performing a finishing operation on the turbine wheel and/or the compressor wheel to form an apex where the leading edges of the blades converge. 1. A turbocharger for an internal combustion engine , comprising:a housing;a shaft rotatable with respect to the housing and defining a centerline;a turbine wheel mounted to the shaft and disposed within the housing;a compressor wheel mounted to the shaft and disposed within the housing; andat least one of the turbine wheel and the compressor wheel having a plurality of blades with leading edges that converge at an apex that is aligned with the centerline.2. The turbocharger as set forth in claim 1 , wherein the leading edges of the plurality of blades extend helically from an inboard point to an outboard point.3. The turbocharger as set forth in claim 2 , wherein the inboard points of the leading edges touch one another and form a pointed shape at the apex.4. The turbocharger as set forth in claim 2 , wherein the shaft has a radius and the inboard points of the leading edges are positioned closer to the centerline than the radius of the shaft.5. The turbocharger as set forth in claim 1 , wherein the housing includes a turbine section with an exhaust inlet that is radially spaced from the centerline and an exhaust outlet that is aligned with the centerline.6. The turbocharger as set ...

TURBOCHARGER SHAFT AND WHEEL ASSEMBLY

A unit for a turbocharger can include a turbine wheel portion that includes a turbine wheel material and a turbine wheel axis; a shaft portion that includes a shaft material and a shaft axis where the shaft material includes a molybdenum content less than 0.5 percent by weight; and a weld that includes a nail shape in cross-section where a head portion of the nail shape includes an axial dimension of approximately 1 mm or less and wherein a shank portion of the nail shape includes an axial dimension of approximately 0.4 mm or less. 1. A unit for a turbocharger , the unit comprising:a turbine wheel portion that comprises a turbine wheel material and a turbine wheel axis;a shaft portion that comprises a shaft material and a shaft axis wherein the shaft material comprises a molybdenum content less than 0.5 percent by weight; anda weld that comprises a nail shape in cross-section wherein a head portion of the nail shape comprises an axial dimension of approximately 1 mm or less and wherein a shank portion of the nail shape comprises an axial dimension of approximately 0.4 mm or less.2. The unit of wherein the weld comprises a weld composition formed of a greater proportion of the turbine wheel material than the shaft material.3. The unit of wherein the shaft material comprises an AISI 41XX material.4. The unit of wherein the shaft material comprises an AISI 4140 material.5. The unit of wherein the nail shape of the weld comprises a tip portion and wherein the shaft portion comprises a reservoir that receives the tip portion.6. The unit of wherein the turbine wheel material comprises nickel.7. The unit of wherein the turbine wheel portion comprises a bore.8. The unit of wherein the shaft comprises a spigot.9. The unit of wherein the shaft comprises a piloting spigot and the turbine wheel comprise a piloting bore.10. The unit of wherein a radial clearance exists between the piloting spigot and the piloting bore.11. The unit of wherein the shaft is without a piloting ...

Exhaust-gas turbocharger

An exhaust-gas turbocharger ( 1 ), with a turbine housing ( 2 ) which has a turbine housing inlet ( 8 ) and a turbine housing outlet ( 9 ) for exhaust gas, and which has a wastegate duct ( 45 ) between the turbine housing inlet ( 8 ) and the turbine housing outlet ( 9 ), and a flap arrangement ( 33 ) comprising a pivotable flap lever ( 35 ), a flap plate ( 34 ), which is connected to the flap lever ( 35 ), for opening and closing the wastegate duct, and having a spring element ( 37 ) which is arranged between the flap lever ( 35 ) and a disc ( 36 ) fastened to the flap plate ( 34 ). The spring element ( 17 ) has an outer circumferential region ( 23 ) which is supported on a sliding contact surface ( 42 ), which is of curved form, of the disc ( 36 ).

Turbocharger

A turbocharger includes a rotating shaft which extends along an axial line thereof, a turbine rotor which is provided on one end side of the rotating shaft, a compressor rotor which is provided on the other end side of the rotating shaft, a roller bearing which rotatably supports the rotating shaft around the axis line between the turbine rotor and the compressor rotor, a housing which covers the roller bearing from an outer peripheral side of the roller bearing, and a tubular sleeve which is provided inside the housing, which is disposed on an outer peripheral side of an outer ring of the roller bearing with a gap for holding a lubricant between the sleeve and the outer ring, and at least part of which is formed of a damping material.

Turbocharger shaft and wheel assembly

A unit for a turbocharger can include a turbine wheel portion that includes a turbine wheel material and a turbine wheel axis; a shaft portion that includes a shaft material and a shaft axis; a first weld that includes a first average axial position over a first azimuthal span and first weld composition formed of a greater proportion of the turbine wheel material than the shaft material; and a second weld that includes a second average axial position over a second azimuthal span and second weld composition formed of a greater proportion of the turbine wheel material than the shaft material, where a sum of the first azimuthal span and the second azimuthal span is approximately 360 degrees, where the first average axial position differs from the second average axial position, and where the first weld composition differs from the second weld composition.

Turbocharger

A turbocharger, with a turbine and compressor housing connected to a bearing housing. An inflow housing of the turbine and bearing housing are connected via a fastening device mounted to a flange of the inflow housing with a first section and partially overlaps a flange of the bearing housing with a second section. Between the inflow housing and the bearing housing, flanges of a nozzle ring and of a sealing cover are clamped. Adjoining surfaces contacting one another in a region of a first, second, and/or a third contact clamping region are hardened.

Casing Of A Turbocharger And Turbocharger

A casing of a turbocharger, which surrounds the turbocharger radially and axially outside at least in sections. The casing has multiple casing modules including a temperature casing module that surrounds the turbine, the compressor, and/or the bearing housing radially outside and axially outside at least in sections, an inner burst protection casing module following the temperature casing module on the outside, and at least one outer burst protection casing module following the inner burst protection casing module on the outside, which surrounds the inner burst protection casing module. 1. A casing of a turbocharger , configured radially and axially surround , at least in sections , a turbine housing and/or a compressor housing and/or a bearing housing of the turbocharger , the casing comprising:at least one temperature casing module, which radially and axially surrounds, at least in sections, the turbine housing and/or the compressor housing and/or the bearing housing outside;an inner burst protection casing module following on an outside of the temperature casing module, which radially and axially surrounds, at least in sections, the temperature casing module; andat least one outer burst protection casing module following on an outside of the inner burst protection casing module, which exclusively radially surrounds, at least in sections, the inner burst protection casing module.2. The casing according to claim 1 , wherein the temperature casing module and the burst protection casing modules are circumferential in a circumferential direction.3. The casing according to claim 1 , further comprising:a flange connection casing module arranged between the temperature casing module and the turbine housing or the compressor housing, which surrounds the turbine housing or the compressor housing radially outside and axially outside exclusively in a region of a connecting flange of turbine housing or compressor housing.4. The casing according to claim 3 , wherein the ...

Turbocharger turbine wheel

A turbocharger turbine assembly can include a turbine housing that includes a longitudinal axis, an exhaust inlet, a shroud portion, and an exhaust outlet; and a turbine wheel that includes a hub that includes a rotational axis aligned with the longitudinal axis of the turbine housing, a backdisk and a nose, where the rotational axis defines an axial coordinate (z) in a cylindrical coordinate system; and blades that extend outwardly from the hub, where each of the blades includes a shroud edge, a leading edge, a trailing edge, a pressure side, and a suction side, where the shroud edge includes a minimum axial coordinate position where the shroud edge meets the leading edge, and a maximum axial coordinate position where the shroud edge meets the trailing edge, and where, from the minimum axial coordinate position to the maximum axial coordinate position, the shroud edge has a decreasing radial coordinate position.

TURBOCHARGER

A turbocharger, includes a turbine for expanding a first medium, the turbine has a turbine housing and a turbine rotor, a compressor for compressing a second medium, having a compressor housing and a compressor rotor that is coupled to the turbine rotor via a shaft. The turbine housing and the compressor housing are each connected to a bearing housing arranged between them, in which the shaft is mounted. In a connecting region between an inflow housing of the turbine housing and the bearing housing a sealing cover is arranged. On a radially inner section of the sealing cover a projection extending in the axial direction is formed, which engages into a groove introduced into the bearing housing forming a radially inner fit and a radially outer fit. 1. A turbocharger , comprising:a shaft; a turbine housing; and', 'a turbine rotor;, 'a turbine for expanding a first medium, having a compressor housing; and', 'a compressor rotor that is coupled to the turbine rotor via the shaft;, 'a compressor for compressing a second medium utilising energy extracted in the turbine during expansion of the first medium, havinga bearing housing arranged between and connected to the turbine housing and the compressor housing an in which the shaft is mounted;a sealing cover arranged in a connecting region between an inflow housing of the turbine housing and the bearing housing; anda projection extending in an axial direction is formed on a radially inner section of the sealing cover, which engages into a groove introduced into the bearing housing forming a radially inner fit and a radially outer fit.2. The turbocharger according to claim 1 , wherein a first axial gap is formed between an end face of the projection of the sealing cover and a groove bottom of the groove of the bearing housing.3. The turbocharger according to claim 2 , wherein a second axial gap is formed between an end face of the sealing cover and an end face of the bearing housing.4. The turbocharger according to claim 3 , ...

SPLIT TURBOCHARGER BEARING ASSEMBLY

A turbocharger bearing assembly of a split turbocharger for an engine is disclosed in which key rotational parts are rotatably supported by a pair of spaced apart bearings located in a bore of a tubular bearing housing forming part of a bearing assembly. The rotational parts of the turbocharger bearing assembly are balanced as a unit before the turbocharger bearing assembly is assembled to a cylinder block of the engine by insertion into a bore formed in the cylinder block. 113-. (canceled)14. A method of assembling a split turbocharger on an engine comprising:assembling a drive shaft, a compressor rotor, a turbine rotor and at least two bearings to a tubular body of a bearing housing to form a turbocharger bearing assembly;rotating the drive shaft and the attached compressor and turbine rotors at a speed to balance rotating parts; andafter balancing the rotating parts, fitting and securing the balanced turbocharger bearing assembly to the engine.15. The method of claim 14 , wherein the assembling includes inserting the at least two bearings into a bore in the tubular body of the bearing housing and engaging the drive shaft with the at least two bearings so as to rotatably support the drive shaft.16. The method of claim 15 , wherein the assembling further includes fastening one of the compressor rotor and the turbine rotor to one end of the drive shaft before it is engaged with the at least two bearings.17. The method of claim 16 , wherein the assembling further includes fastening the other of the compressor rotor and the turbine rotor to an opposite end of the drive shaft after the one of the compressor rotor and the turbine rotor has been engaged with the at least two bearings claim 16 , the opposite end located opposite the one end.18. The method of claim 14 , further comprising:fastening a compressor housing to a first side of a structural component of the engine so as to cover the compressor rotor and form a compressor.19. The method of claim 18 , further ...

Internal Combustion Engine, Turbocharger For An Internal Combustion Engine And Method For Operating The Internal Combustion Engine

An internal combustion engine, in particular gas engine, with multiple cylinders, wherein in the cylinders a mixture of charge air and a gaseous fuel can be combusted, with a first turbocharger, in which exclusively the charge air can be compressed, and with a second turbocharger, in which exclusively the gaseous fuel can be compressed. 1. A turbocharger system for an internal combustion engine , in particular gas engine , with multiple cylinders constructed and arranged for combusting a mixture of charge air and a gaseous fuel; the turbocharger system comprising:a first turbocharger constructed and arranged for exclusively compressing the charge air; anda second turbocharger constructed and arranged for exclusively compressing the gaseous fuel.2. The turbocharger system according to claim 1 , wherein the first turbocharger comprises a single compressor stage; and the second turbocharger comprises at least two compressor stages.3. The turbocharger system according to claim 1 , wherein the second turbocharger which exclusively serves for compressing the gaseous fuel comprises a compressor with a first compressor stage and a first compressor rotor claim 1 , and a second compressor stage and a second compressor rotor;a turbine with a turbine rotor, and wherein the turbine rotor, the first compressor rotor and the second compressor rotor are all coupled via a common shaft.4. The turbocharger system according to claim 3 , wherein the compressor stages of the compressor are radial compressor stages; and the turbine is a radial turbine.5. The turbocharger system according to claim 3 , additionally comprising a curved flow passage with a first passage section leading away from the first compressor stage in the radial direction; a second passage section leading to the second compressor stage in the radial direction and a third curved passage section running between the first and second passage section and guide blades arranged in the second passage section leading to the ...

TURBOCHARGER

This turbocharger () comprises a turbine wheel (), a compressor wheel (), and a scroll flowpath () formed in a turbine housing (), continuing in the circumferential direction on the radially outer side of the turbine wheel (), and having gas flowing therethrough that rotates and drives the turbine wheel (). The scroll flowpath () is formed such that: an inner circumferential inside wall surface () on the turbine wheel () side is gradually displaced radially outwards, along the direction of gas flow; and the cross-sectional area of the flowpath gradually decreases. 113.-. (canceled)14. A turbocharger comprising:a rotating shaft extending along an axis;a turbine wheel disposed on a first end portion side of the rotating shaft;a compressor wheel disposed on a second end portion side of the rotating shaft;a turbine housing accommodating the turbine wheel;a scroll flowpath formed in the turbine housing, continuing in a circumferential direction on a radially outer side of the turbine wheel, and guiding gas to the turbine wheel;a nozzle flowpath guiding the gas radially inwards from the scroll flowpath and supplying the gas to the turbine wheel;a vane disposed in the nozzle flowpath and adjusting an amount of the gas introduced in the nozzle flowpath;a bearing housing rotatably supporting the rotating shaft; anda nozzle mount disposed on a bearing housing side with respect to the nozzle flowpath and sandwiched and held between the bearing housing and a mount fixing portion formed in the turbine housing,wherein the scroll flowpath is formed such that an inner circumferential inside wall surface on a side close to the turbine wheel is gradually displaced radially outwards downstream in the circumferential direction in which the gas flows and the cross-sectional area of the flowpath gradually decreases and the scroll flowpath is formed such that an offset dimension of a cross-sectional center position of the scroll flowpath with respect to a radially outer position of the ...

Turbo charger having cooling structure

A turbocharger having a cooling structure may include a center housing on which a shaft is rotatably fitted, a turbine impeller disposed at one end of the shaft, a compressor impeller disposed at the other end of the shaft, a turbine housing fastened to the center housing and covering the turbine impeller such that an exhaust gas flows into the turbine impeller, a compressor housing fastened to the center housing and covering the compressor impeller such that an intake air flows into the compressor impeller, and a coil type heat exchanger formed in a rotational direction of the shaft and in a space between the center housing and the turbine impeller.

TURBOCHARGER WASTE-GATE VALVE BUSHING

A turbocharger for an internal combustion engine includes a rotating assembly having a turbine wheel disposed inside a turbine housing and a compressor wheel disposed inside a compressor cover. The turbocharger also includes a waste-gate assembly configured to selectively redirect at least a portion of the engine's post-combustion gases away from the turbine wheel. The waste-gate assembly includes a valve, a rotatable shaft connected to the valve, and a bushing fixed relative to the turbine housing and disposed concentrically around the shaft such that the shaft rotates inside the bushing for opening and closing the valve. The bushing is defined by a length, an outer surface in contact with the turbine housing, and an inner surface in contact with the shaft. The inner surface includes a plurality of longitudinal grooves configured to counteract friction between the bushing and the shaft and avoid seizure of the shaft relative to the bushing. 1. An internal combustion engine comprising:a cylinder configured to receive an air-fuel mixture for combustion therein;a reciprocating piston disposed inside the cylinder and configured to exhaust post-combustion gases therefrom; and a turbine housing and a compressor cover;', 'a rotating assembly having a turbine wheel disposed inside the turbine housing and a compressor wheel disposed inside the compressor cover, wherein the rotating assembly is rotated about an axis by the post-combustion gases; and', a valve, a rotatable shaft connected to the valve, and a bushing fixed relative to the turbine housing and disposed concentrically around the shaft such that the shaft rotates inside the bushing to thereby selectively open and close the valve;', 'wherein the bushing is defined by a length, an outer surface in contact with the turbine housing, and an inner surface in contact with the shaft, and wherein the inner surface includes a plurality of longitudinal grooves configured to counteract friction between the bushing and the ...

TURBINE HOUSINE SUPPORT FOR A TURBOCHARGER

An turbine housing support is disclosed. The turbine housing support may have a flange. The flange may be configured to connect at least a pair of turbocharger components. The turbine housing support may also have a first column extending outward from a first location on a side surface of the flange. The first column may be disposed on a first side of the flange. The turbine housing support may also have a second column extending outward from a second location on the side surface of the flange. The second column may be disposed on a second side of the flange opposite the first side. 1. A turbine housing support , comprising:a flange configured to connect at least a pair of turbocharger components;a first column extending outward from a first location on a side surface of the flange, the first column being disposed on a first side of the flange;a second column extending outward from a second location on the side surface of the flange, the second column being disposed on a second side of the flange opposite the first side.2. The turbine housing support of claim 1 , wherein the flange claim 1 , the first column claim 1 , and the second column form a casting.3. The turbine housing support of claim 2 , wherein the casting is made out of a ductile iron-alloy material.4. The turbine housing support of claim 1 , wherein:the first column extends circumferentially around the flange on the first side from the first location; andthe second column extends circumferentially around the flange on the second side from the second location, the first column and the second column being spaced apart from the side surface of the flange.5. The turbine housing support of claim 1 , wherein the flange has a recess to receive radially extending flanges of the pair of turbocharger components.6. The turbine housing support of claim 1 , whereinthe flange includes a plurality of holes forming a bolting pattern, andthe first column and the second column are disposed outside the bolting pattern.7. ...

Variable nozzle unit and variable geometry turbocharger

A support ring is connected to a first nozzle ring by multiple connecting pins. An outer cutout is formed at a region on an outer side in a radial direction at a rim on an axially one side of each first attachment hole in the first nozzle ring. An inner cutout is formed at a region on an inner side in the radial direction at the rim on the axially one side of each first attachment hole in the first nozzle ring. An outer cutout is formed at a region on an outer side in the radial direction at a rim on an axially other side of each pin hole in the support ring. An inner cutout is formed at a region on an inner side in the radial direction at the rim on the axially other side of each pin hole in the support ring.

Return Channels For A Multi-Stage Turbocompressor

A return geometry fluidically connects a first and a second compressor stage of the turbocompressor. The return geometry has multiple partial helices that are evenly or unevenly distributed in the circumferential direction. The multiple partial helices extend at least in part in the circumferential direction. They form flow channels that extend at least in some sections, separately from each other, to fluidically connect the first and second compressor stages. 1. A turbocompressor return geometry fluidically connecting a first and a second compressor stage of the turbocompressor , the return geometry comprises:multiple partial helices are arranged evenly or unevenly distributed in the circumferential direction, the multiple partial helices extend at least in part in the circumferential direction and the multiple partial helices form flow channels extending at least in some sections separately from each other for fluidically connecting the first and second compressor stages.2. The return geometry according to claim 1 , wherein the flow channels form multiple successively arranged bends that multiply deflect the flow between the first and second compressor stages.3. The return geometry according to claim 2 , wherein the bends of the flow channels guide the flow from a radial outflow direction into a first axial direction in the direction of the second compressor stage and subsequently back into a radial inflow direction that runs counter to the outflow direction.4. The return geometry according to claim 3 , wherein claim 3 , subsequently to the inflow direction claim 3 , one of the bends of the flow channels guides the flow into a second axial direction that runs counter to the first axial direction.5. The return geometry according to claim 1 , wherein the flow channels extend from an inlet region that can be associated with the first compressor stage to an outlet region that can be associated with the first compressor stage and merge in the outlet region to form a ...

Turbine and turbocharger including the same

A turbine includes a turbine impeller, a turbine housing disposed so as to cover the turbine impeller and internally forming a scroll flow passage through which an exhaust gas flows, and a throat forming portion which is provided as a separate piece from the turbine housing. The throat forming portion is disposed to face a section of the turbine housing and forms a hub-side wall surface of a throat portion of the scroll flow passage in an axial direction, the section forming a shroud-side wall surface of the throat portion.

Disk spring for an exhaust gas turbocharger

A disk spring for an exhaust gas turbocharger is provided. The disk spring includes an annular base body extending around a central longitudinal axis and along a circumferential direction of the disk spring and enclosing a disk opening. Preload elements are formed on an inner circumference of the base body for exerting a preload force on a mounting section of an exhaust gas turbocharger inserted into the disk opening.

Turbocharger Variable-Vane Cartridge With Nozzle Ring and Pipe Secured By Two-Piece Self-Centering Spacers

A variable-nozzle turbocharger includes a variable vane mechanism that has an annular nozzle ring supporting an array of rotatable vanes, an insert having a tubular portion sealingly received into a bore of the turbine housing and having a nozzle portion extending radially out from one end of the tubular portion and being axially spaced from the nozzle ring with the vanes therebetween, and a plurality of two-piece self-centering spacer assemblies connected between the nozzle portion of the insert and the nozzle ring. Each spacer assembly comprises a tubular sleeve and a separate pin that passes through the through-passage of the sleeve, end portions of the pin being secured respectively to the nozzle ring and the nozzle portion. One end of each sleeve has a conical surface and engages in a corresponding conical countersink in the adjacent face of the nozzle ring or nozzle portion. 1. A turbocharger having a variable-nozzle turbine , comprising:a turbine assembly comprising a turbine housing and a turbine wheel mounted in the turbine housing and connected to a rotatable shaft for rotation therewith, the turbine housing defining a chamber surrounding the turbine wheel for receiving exhaust gas and for supplying the exhaust gas to the turbine wheel, the turbine assembly defining a nozzle leading from the chamber generally radially inwardly to the turbine wheel, the turbine housing further defining an axially extending bore through which exhaust gas is discharged after passing through the turbine wheel;a compressor assembly comprising a compressor housing and a compressor wheel mounted in the compressor housing and connected to the rotatable shaft for rotation therewith;a center housing connected between the compressor housing and the turbine housing; anda generally annular nozzle ring and an array of vanes circumferentially spaced about the nozzle ring and disposed in the nozzle such that exhaust gas flows between the vanes to the turbine wheel, each vane being ...

TURBINE HOUSING ASSEMBLY FOR A TURBOCHARGER

A turbine housing assembly is disclosed. The turbine housing assembly may have a turbine housing. The turbine housing may have a turbine housing flange. The turbine housing assembly may also have a bearing housing having a boss extending from a compressor end to a turbine end opposite the compressor end. The bearing housing may also have a bearing housing flange abutting on the turbine housing flange. The bearing housing flange may be disposed between the compressor end and the turbine end. The turbine housing assembly may also have a clamping plate abutting on the turbine housing flange and the boss. Further the turbine housing assembly may have a backing plate abutting on the clamping plate. In addition, the turbine housing assembly may have a fastener disposed within the boss and attached to the backing plate. 1. A turbine housing assembly , comprising:a turbine housing including a turbine housing flange; a boss extending from a compressor end to a turbine end opposite the compressor end; and', 'a bearing housing flange abutting on the turbine housing flange, the bearing housing flange being disposed between the compressor end and the turbine end;, 'a bearing housing includinga clamping plate abutting on the turbine housing flange and the boss;a backing plate abutting on the clamping plate; anda fastener disposed within the boss and attached to the backing plate.2. The turbine housing assembly of claim 1 , whereinthe backing plate includes a threaded holethe fastener includes threads that engage with the threaded hole.3. The turbine housing assembly of claim 1 , whereinthe bearing housing flange has a mating surface, andthe turbine housing flange has front flange wall abutting on the mating surface.4. The turbine housing assembly of claim 3 , wherein the turbine housing further includes:a first annular recess having a front recess wall and a first rear recess wall disposed opposite the front recess wall, the first rear recess wall being located at a first axial ...

Compressor inlet recirculation system for a turbocharger

A compressor inlet recirculation system is disclosed. The compressor inlet recirculation system may have a compressor housing. The compressor inlet recirculation system may also have a compressor impeller disposed within the compressor housing. The compressor inlet recirculation system may further have an inlet flow guide attached to the compressor housing. The inlet flow guide may be configured to direct air to the compressor impeller. The inlet flow guide may have an inlet slot and an outlet slot spaced axially from the inlet slot. The compressor inlet recirculation system may also have an annular air passage extending between the inlet slot and the outlet slot.

BEARING STRUCTURE FOR TURBOCHARGER AND TURBOCHARGER

Provided is a bearing structure for a turbocharger including a turbine and a compressor provided at both ends of a rotation shaft and supporting the rotation shaft to a housing, including: a first radial bearing of an oil lubrication type provided on the side of the turbine of the rotation shaft; a second radial bearing corresponding to an air bearing provided on the side of the compressor of the rotation shaft; a gas seal portion provided in the periphery of the rotation shaft between the first radial bearing and the turbine; and a thrust bearing corresponding to an air bearing provided on the side of the compressor of the rotation shaft. 1. A bearing structure for a turbocharger including a turbine and a compressor provided at both ends of a rotation shaft and supporting the rotation shaft to a housing , comprising:a first radial bearing of an oil lubrication type provided on the side of the turbine of the rotation shaft;a second radial bearing corresponding to an air bearing provided on the side of the compressor of the rotation shaft;a gas seal portion provided in the periphery of the rotation shaft between the first radial bearing and the turbine; anda thrust bearing corresponding to an air bearing provided on the side of the compressor of the rotation shaft.2. The bearing structure for the turbocharger according to claim 1 ,wherein an oil movement prevention mechanism for suppressing the movement of oil from the turbine to the compressor is provided on the side of the turbine of the rotation shaft.3. The bearing structure for the turbocharger according to claim 2 ,wherein the oil movement prevention mechanism includes a step portion protruding in a radial direction in relation to a portion provided with the first radial bearing in the rotation shaft and facing the first radial bearing.4. The bearing structure for the turbocharger according to claim 2 ,wherein the oil movement prevention mechanism includes a flange portion protruding in a radial direction in ...

TURBOCHARGER

A wastegate is attached to a turbine housing of a turbocharger. The wastegate opens and closes a bypass passage. An actuator is coupled to the wastegate via a link mechanism. The link mechanism includes a link rod and a link arm. The longitudinal direction of the link rod in a state in which the bypass passage is fully closed is defined as a width direction of the link arm. The coupling center position in the link arm to which the link rod is coupled is located at a position offset in a direction in which the link rod moves to open the wastegate from a middle of the link arm in the width direction. 1. A turbocharger comprising:a turbine housing that accommodates a turbine wheel;a bypass passage defined in the turbine housing, wherein the bypass passage connects an exhaust-upstream section to an exhaust-downstream section with respect to the turbine wheel, thereby bypassing the turbine wheel;a wastegate attached to the turbine housing to selectively open and close a downstream end of the bypass passage;a link mechanism coupled to the wastegate to transmit driving force to the wastegate; andan actuator coupled to the link mechanism, whereinthe turbine housing has a valve seat portion in an inner wall surface of the turbine housing, a valve member that contacts the valve seat portion at the time the bypass passage is fully closed, and', 'a shaft that extends from the valve member and is pivotally supported by a wall portion of the turbine housing,, 'the wastegate includes'} an elongated link rod that moves from one side to the other in the longitudinal direction of the link rod by receiving the driving force of the actuator, and', 'a link arm that is coupled to the link rod, converts movement of the link rod to rotation, and transmits the rotation to the shaft, and, 'the link mechanism includes'}the longitudinal direction of the link rod in a state in which the bypass passage is fully closed is defined as a width direction of the link arm, anda coupling center position ...

TURBOCHARGER AND MATING RING INCLUDED THEREIN

A turbocharger includes a shaft, a compressor wheel, and a seal assembly. The seal assembly includes a carbon ring having a carbon surface having a carbon ring inner diameter and a carbon ring outer diameter. The seal assembly also includes a mating ring having a mating surface facing the carbon surface of the carbon ring. The mating surface has a land portion configured to contact the carbon surface between a first mating diameter radially aligned with the carbon ring inner diameter and a second mating diameter radially aligned with the carbon ring outer diameter. The land portion has a land area between the first and second mating diameters. The mating surface defines a plurality of grooved portions. The plurality of grooved portions have a grooved area between the first and second mating diameters. A ratio of the land area to the grooved area is between 1.3 and 2.9. 1. A turbocharger for delivering compressed air to an internal combustion engine and for receiving exhaust gas from the internal combustion engine , said turbocharger comprising:a shaft extending along an axis between a first end and a second end spaced from said first end along said axis;a compressor wheel coupled to said first end of said shaft; and a carbon ring disposed about said shaft and spaced from said compressor wheel along said axis, with said carbon ring having a carbon surface having a carbon ring inner diameter and a carbon ring outer diameter spaced from said carbon ring inner diameter radially away from said axis, and', 'a mating ring disposed about said shaft and spaced from said compressor wheel along said axis such that said carbon ring is disposed between said compressor wheel and said mating ring, with said mating ring having a mating surface facing said carbon surface of said carbon ring,', 'with said mating surface having a land portion configured to contact said carbon surface between a first mating diameter radially aligned with said carbon ring inner diameter with respect to ...

ROTARY MACHINE BLADE, SUPERCHARGER, AND METHOD FOR FORMING FLOW FIELD OF SAME

A rotary machine blade () equipped with a clearance flow suppression blade section (), the lean angle of which has one or more inflection points, and which is formed such that when the direction from a positive-pressure surface () to a negative-pressure surface () is taken as the normal direction, an inflection point (P) of the lean angle positioned farthest toward the blade end () changes from the negative to the positive direction in the direction away from the blade end (). 110-. (canceled)11. A rotary machine blade comprising:a clearance flow suppressing blade portion that is formed such that a lean angle has one or more inflection points, and the lean angle turns over from positive to negative in a direction of separating apart from a blade end when a direction from a positive pressure surface to a negative pressure surface is set as a positive direction at the inflection point of the lean angle, which is located closest to the blade end,wherein in the clearance flow suppressing blade portion, a positive lean angle gradually decreases from the blade end to the inflection point of the lean angle, which is located closest to the blade end.12. The rotary machine blade according to claim 11 ,wherein in the clearance flow suppressing blade portion, a negative lean angle gradually increases as becoming closer to an inside in a radial direction from the inflection point of the lean angle, which is located closest to the blade end.13. The rotary machine blade according to claim 11 ,wherein the inflection point of the lean angle, which is located closest to the blade end, is formed at least in a region having a span height of 70% or more.14. The rotary machine blade according to claim 11 ,wherein the clearance flow suppressing blade portion is formed in at least a part between a leading edge and a trailing edge of a blade.15. The rotary machine blade according to claim 14 ,wherein the clearance flow suppressing blade portion is formed in a range of 0 to 40% from the ...