Exhaust-driven turbocharger for a motor vehicle
원문보기
IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0465252
(2009-05-13)
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등록번호 |
US-8322978
(2012-12-04)
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우선권정보 |
DE-10 2008 023 552 (2008-05-14) |
발명자
/ 주소 |
- Dilovski, Nikolay
- Hoecker, Patric
- Kraemer, Aurelia
- Wein, Michael
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출원인 / 주소 |
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대리인 / 주소 |
Rader, Fishman & Grauer PLLC
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인용정보 |
피인용 횟수 :
1 인용 특허 :
1 |
초록
▼
An exhaust-driven turbocharger for a motor vehicle includes at least one of a variable turbine and a compressor geometry, a vane-mounting ring with guide vanes mounted rotatably thereon and a guide vane cage. The guide vane cage forms at least part of a flow duct and at the same time a mount for the
An exhaust-driven turbocharger for a motor vehicle includes at least one of a variable turbine and a compressor geometry, a vane-mounting ring with guide vanes mounted rotatably thereon and a guide vane cage. The guide vane cage forms at least part of a flow duct and at the same time a mount for the vane-mounting ring. The guide vane cage is supported by spacer elements while creating an axial gap on a housing of the exhaust-driven turbocharger such that hot gas selectively flows behind the guide vane cage. Also, the guide vane cage is clamped between the turbine housing and the mounting housing of the exhaust-driven turbocharger without fixedly connecting the guide vane cage to either one of the two housings.
대표청구항
▼
1. An exhaust-driven turbocharger for a motor vehicle, comprising: at least one of a variable turbine and a compressor geometrya vane-mounting ring with guide vanes mounted rotatably thereon,a guide cane cage which forms at least part of a flow duct and at the same time a mount for the vane-mounting
1. An exhaust-driven turbocharger for a motor vehicle, comprising: at least one of a variable turbine and a compressor geometrya vane-mounting ring with guide vanes mounted rotatably thereon,a guide cane cage which forms at least part of a flow duct and at the same time a mount for the vane-mounting ring, the guide vane cage disposed in the turbine housing and having a first annular step portion and a second annular step portion fixedly connected to the first annular step portion, the first annular step portion disposed in the turbine housing to surround at least a portion of the guide vanes in a close-fitting, spaced-apart manner, the guide vane cage fixedly connected to and arranged between a turbine housing and a turbine mounting base by a compression force when the turbine housing and the turbine mounting base are releasably connected together,wherein the first annular step portion comprises a first step flange portion and the second annular step portion comprises a second step flange portion which includes a plurality of spacer elements integrally formed therewith, each one of the plurality of spacer elements extends radially from at least an outer peripheral edge portion of the second annular step portion and projects axially from the at least an outer peripheral edge portion of the second annular step portion towards the first step flange portion such that a radially-extending spacer element surface of each one of the plurality of spacer elements is disposed between the first step flange portion and the second step flange portion so that an axial gap is formed between the turbine housing and the second step flange portion andwherein the guide vane cage is clamped by a compression force between the turbine housing and the mounting housing of the exhaust-driven turbocharger when the turbine housing and the mounting housing are connected together, the compression force being applied to the spacer elements. 2. The exhaust-driven turbocharger according to claim 1, wherein the guide vane cage is configured as a single-part formed sheet metal part. 3. The exhaust-driven turbocharger according to claim 2, wherein the spacer elements and the guide vane cage are produced from one piece. 4. The exhaust-driven turbocharger according to claim 2, wherein three spacer elements are provided, between which an angle of approximately 120° is provided. 5. The exhaust-driven turbocharger according to claim 2, wherein the guide vane cage has a radially stepped configuration and encloses a turbine wheel with a first annular step and bears the vane-mounting ring with a second annular step. 6. The exhaust-driven turbocharger according to claim 1, wherein the spacer elements and the guide vane cage are produced from one piece. 7. The exhaust-driven turbocharger according to claim 6, wherein the guide vane cage has a radially stepped configuration and encloses a turbine wheel with a first annular step and bears the vane-mounting ring with a second annular step. 8. The exhaust-driven turbocharger according to claim 1, wherein three spacer elements are provided, between which an angle of approximately 120° is provided. 9. The exhaust-driven turbocharger according to claim 8, wherein the guide vane cage has a radially stepped configuration and encloses a turbine wheel with a first annular step and bears the vane-mounting ring with a second annular step. 10. The exhaust-driven turbocharger according to claim 9, wherein the spacer elements are arranged in a region of the second annular step. 11. The exhaust-driven turbocharger according to claim 1, wherein the guide vane cage has a radially stepped configuration and encloses a turbine wheel with a first annular step and bears the vane-mounting ring with a second annular step. 12. A turbine for an exhaust-driven turbocharger, comprising: a turbine housing;a turbine mounting base releasably connected to the turbine housing;a turbine impeller rotatably disposed in the turbine housing and the turbine mounting base and having a vane-mounting ring with guide vanes mounted thereon; anda guide vane cage disposed in the turbine housing and having a first annular step portion and a second annular step portion fixedly connected to the first annular step portion, the first annular step portion disposed in the turbine housing to surround at least a portion of the guide vanes in a close-fitting, spaced-apart manner, the second annular step portion surrounding the vane-mounting ring in a close-fitting, spaced-apart manner, the guide vane cage fixedly connected to and arranged between the turbine housing and the turbine mounting base by a compression force when the turbine housing and the turbine mounting base are releasably connected together,wherein the first annular step portion comprises a first step flange portion and the second annular step portion comprises a second step flange portion which includes a plurality of spacer elements integrally formed therewith, each one of the plurality of spacer elements extends radially from at least an outer peripheral edge portion of the second annular step portion and projects axially from the at least an outer peripheral edge portion of the second annular step portion towards the first step flange portion such that a radially-extending spacer element surface of each one of the plurality of spacer elements is disposed between the first step flange portion and the second step flange portion so that an axial gap is formed between the turbine housing and the second step flange portion. 13. A turbine according to claim 12, wherein the first annular step portion includes a first step cylinder part extending along and about an axial centreline and a first step flange portion connected at an end of the first step cylinder part and extending radially outwardly therefrom. 14. A turbine according to claim 13, wherein the second annular step portion includes a second step cylinder part extending along and about the axial centreline and a second step flange portion connected at an end of the second step cylinder part and extending radially inwardly therefrom. 15. A turbine according to claim 14, wherein the first annular step portion and the second annular step portion are axially disposed apart from one another and are connected at an outer peripheral edge of the first step flange portion and an inner peripheral edge of the second step flange portion. 16. A turbine according to claim 12, wherein the plurality of spacer elements includes three spacer elements disposed circumferentially apart from each other in approximately 120° increments.
이 특허에 인용된 특허 (1)
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Kasuya ; Tamotsu, Super charger with fluid biased heat shroud.
이 특허를 인용한 특허 (1)
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Annati, Richard E.; McCormack, Jeffrey W.; Frick, Matthew J., Turbocharger with turbine shroud.
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