Turbocharger bearing housing
a technology of bearing housing and turbocharger, which is applied in the direction of machines/engines, stators, liquid fuel engines, etc., can solve the problems of difficulty in reducing weight of bearing housing manufactured by using cast iron, and achieve the effects of suppressing temperature rise of bearing housing, preventing deformation, damage, and reducing weight of bearing housing
Inactive Publication Date: 2015-04-02
TAIHO INDUSTRIES CO LTD
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- Description
- Claims
- Application Information
AI Technical Summary
Benefits of technology
The present invention provides a bearing housing for a turbocharger that has the following technical effects: reducing the weight of the bearing housing by using an aluminum-based material for the relatively low-temperature compressor-side housing, preventing temperature rise of the bearing housing in a high-temperature environment, preventing deformation, damage, and the like due to the high temperature by using stainless steel for the relatively high-temperature turbine-side housing, reducing lubricating oil stays in the turbine-side housing by using stainless steel with low surface roughness, preventing heat transfer from the turbine-side housing to the compressor-side housing.
Problems solved by technology
Unfortunately, the above-described bearing housing manufactured by using cast iron has a difficulty in reducing the weight thereof since the cast iron has a relatively high density.
Method used
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[0041]In the following description, in accordance with arrows shown in the figures, a front-back direction, an up-down direction, and a left-right direction are defined individually.
[0042]With reference to FIG. 1, description will be given of an overview of operation for a turbocharger 10 having a bearing housing 100 (refer to FIG. 3 and the like) according to one embodiment of the present invention.
[0043]The turbocharger 10 is for feeding compressed air into a cylinder 2 of an engine. The air is supplied to the cylinder 2 via an intake passage 1. The air sequentially passes through an air cleaner 4, the turbocharger 10, an intercooler 5, and a throttle valve 6 which are disposed along the intake passage 1, and then the air is supplied to the cylinder 2. At this time, since a compressor 30 of the turbocharger 10 compresses the air, much more air can be fed into the cylinder 2.
[0044]High-temperature air (exhaust) after burning inside the cylinder 2 is discharged via an exhaust passag...
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Abstract
There is provided a turbocharger bearing housing which is capable of reducing the weight thereof. A bearing housing of a turbocharger contains a shaft connecting a turbine and a compressor, and turnably supports the shaft. The bearing housing of the turbocharger is divided into a turbine-side housing disposed at a turbine side and a compressor-side housing disposed at a compressor side. The compressor-side housing is formed of an aluminum-based material.
Description
TECHNICAL FIELD[0001]The present invention relates to a technique of a turbocharger bearing housing provided in an internal combustion engine.BACKGROUND ART[0002]Conventionally, there has been publicly known a technique of a turbocharger bearing housing provided in an internal combustion engine. Such a technique of a turbocharger bearing housing is disclosed, for example, in Japanese Patent Application Laid-Open No. H9-310620.[0003]The turbocharger bearing housing rotatably supports a shaft connecting a turbine driven by exhaust gas and a compressor for compressing intake air. Such a bearing housing is manufactured by casting using cast iron.[0004]Unfortunately, the above-described bearing housing manufactured by using cast iron has a difficulty in reducing the weight thereof since the cast iron has a relatively high density.DISCLOSURE OF INVENTIONTechnical Problem[0005]The present invention has been devised to solve the disadvantageous point described above, and an object thereof i...
Claims
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Patent Timeline
Login to View More IPC IPC(8): F04D29/40F01D25/00
CPCF01D25/005F04D29/403F01D25/24F05D2220/40F05D2300/121F05D2240/50
Inventor TAKAMA, KENICHIROKANBARA, SATORUMAKI, KEIJIRONARUSE, RYUJI
Owner TAIHO INDUSTRIES CO LTD