IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0989284
(2007-08-03)
|
등록번호 |
US-8387243
(2013-03-05)
|
우선권정보 |
JP-2006-218095 (2006-08-10) |
국제출원번호 |
PCT/JP2007/065677
(2007-08-03)
|
§371/§102 date |
20080310
(20080310)
|
국제공개번호 |
WO2008/018577
(2008-02-14)
|
발명자
/ 주소 |
- An, Byeongil
- Shiraishi, Takashi
- Kikuchi, Toru
- Wakita, Mamoru
|
출원인 / 주소 |
- Mitsubishi Heavy Industries, Ltd.
|
인용정보 |
피인용 횟수 :
3 인용 특허 :
3 |
초록
▼
A method of manufacturing a multistage exhaust turbocharger having a high-pressure stage turbocharger and a low-pressure stage turbocharger includes providing a high-pressure turbine housing of the high-pressure stage turbocharger, the high-pressure turbine housing being integrally formed with the e
A method of manufacturing a multistage exhaust turbocharger having a high-pressure stage turbocharger and a low-pressure stage turbocharger includes providing a high-pressure turbine housing of the high-pressure stage turbocharger, the high-pressure turbine housing being integrally formed with the exhaust manifold by casting or welding, assembling constituent parts of the high-pressure stage turbocharger using the high-pressure turbine housing as a reference, after the assembling constituent parts of the high-pressure stage turbocharger, attaching the low-pressure stage turbocharger to the high-pressure stage turbocharger by attaching a low-pressure turbine housing to a low-pressure turbine connection flange, and after the attaching the low-pressure stage turbocharger, attaching an air supply channel to connect between a supply air outlet of the low-pressure stage turbocharger and a supply air inlet of the high-pressure stage turbocharger, wherein the low-pressure turbocharger is disposed below the high-pressure turbocharger.
대표청구항
▼
1. A method of manufacturing a multistage exhaust turbocharger for an internal combustion engine, the multistage exhaust turbocharger including a high-pressure stage turbocharger having a high-pressure turbine drivable by exhaust gas from an exhaust manifold of the engine, and a low-pressure stage t
1. A method of manufacturing a multistage exhaust turbocharger for an internal combustion engine, the multistage exhaust turbocharger including a high-pressure stage turbocharger having a high-pressure turbine drivable by exhaust gas from an exhaust manifold of the engine, and a low-pressure stage turbocharger having a low-pressure turbine drivable by exhaust gas flowed out from the high-pressure turbine after driving the high-pressure turbine, said method comprising: providing a high-pressure turbine housing of the high-pressure stage turbocharger, the high-pressure turbine housing being integrally formed with the exhaust manifold by casting;assembling constituent parts of the high-pressure stage turbocharger using the high-pressure turbine housing as a reference;after said assembling constituent parts of the high-pressure stage turbocharger, attaching the low-pressure stage turbocharger to the high-pressure stage turbocharger by attaching a low-pressure turbine housing to a low-pressure turbine connection flange provided at an exhaust outlet side of the high-pressure stage turbocharger; andafter said attaching the low-pressure stage turbocharger, attaching an air supply channel to connect between a supply air outlet of the low-pressure stage turbocharger and a supply air inlet of the high-pressure stage turbocharger,wherein the high-pressure stage turbocharger has a rotation axis,wherein the low-pressure stage turbocharger is disposed below the high-pressure stage turbocharger when viewed in a direction parallel to the rotation axis of the high-pressure stage turbocharger,wherein the high-pressure stage turbocharger and the low-pressure stage turbocharger are arranged sequentially in the flow path of the exhaust gas of the engine,wherein the high-pressure stage turbocharger has a high-pressure compressor and the low-pressure stage turbocharger has a low-pressure compressor, andwherein the air supply channel supplies supply air for the engine pressurized by the low-pressure compressor to the high-pressure compressor to be further pressurized by the high-pressure compressor. 2. The method of claim 1, wherein the high-pressure stage turbocharger includes: a high-pressure compressor cover accommodating the high-pressure compressor, the high-pressure compressor cover including the supply air inlet of the high-pressure stage turbocharger;an exhaust gas guide member having a low-pressure turbine connection flange for connecting the high-pressure turbine housing and the low-pressure turbine housing; andan exhaust gas outlet flange on the high-pressure turbine housing,wherein the low-pressure stage turbocharger includes a low-pressure compressor cover accommodating the low-pressure compressor, the low-pressure compressor cover including the supply air outlet of the low-pressure stage turbocharger, andwherein the exhaust gas guide member is attached to the exhaust gas outlet flange of the high-pressure turbine housing, then the low-pressure turbine housing is attached to the low-pressure turbine connection flange of the exhaust gas guide member, and then the air supply channel is attached between the supply air outlet of the low-pressure stage turbocharger and the supply air inlet of the high-pressure stage turbocharger. 3. The method of claim 1, wherein the high-pressure stage turbocharger includes an exhaust gas guide member, and the low-pressure stage turbocharger is connected to the exhaust gas guide member, wherein assembled at one side of the engine are the exhaust manifold formed integrally with the high-pressure turbine housing, the high-pressure stage turbocharger, and the low-pressure stage turbocharger, in order from the top side. 4. The method of claim 1, wherein the high-pressure stage turbocharger and the high-pressure turbine housing are attached to the engine, and then the low-pressure stage turbocharger is attached to the high-pressure stage turbocharger. 5. The method of claim 1, wherein the low-pressure stage turbocharger is disposed below the high-pressure stage turbocharger in a vertical direction which is perpendicular to the rotation axis of the high-pressure stage turbocharger. 6. The method of claim 1, further comprising mounting the exhaust turbocharger at one side of the engine in a lateral direction of the engine with the rotation axis of the high-pressure stage turbocharger being parallel to the axial direction of the engine, wherein the low-pressure stage turbocharger is disposed below the high-pressure stage turbocharger in a vertical direction of the engine which is perpendicular to the axial direction of the engine and perpendicular to the lateral direction of the engine. 7. The method of claim 1, wherein the low-pressure stage turbocharger is disposed below the high-pressure stage turbocharger when viewed in an axial direction of the engine without the low-pressure stage turbocharger and the high-pressure stage turbocharger being on the same axis of the engine. 8. The method of claim 1, wherein a rotation axis of the low-pressure stage turbocharger is offset from the rotation axis of the high-pressure stage turbocharger in a vertical direction perpendicular to the rotation axis of the high-pressure stage turbocharger.
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