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Turbocharger

A technology of supercharger and supercharger main body, applied in the direction of machine/engine, bearing, shaft, etc., to achieve the effect of improving oil discharge

Active Publication Date: 2014-06-04
IHI CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In such a case, there is a possibility that part of the lubricating oil flowing into the insertion hole may be guided to the impeller side instead of flowing into the through hole.

Method used

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Embodiment Construction

[0018] Embodiments of the present invention will be described in detail below with reference to the drawings. Dimensions, materials, other specific numerical values, and the like shown in the present embodiment are merely examples for facilitating understanding of the invention. That is, they do not limit the present invention unless otherwise specified. In this specification and the drawings, elements having substantially the same functions and structures are denoted by the same symbols to omit repeated explanations, and illustration of elements not directly related to the present invention is omitted.

[0019] figure 1 is a schematic sectional view of the supercharger C. Below, with figure 1 The direction of the arrow L shown is the left side of the supercharger C, and the direction of the arrow R is the right side of the supercharger C. Such as figure 1 As shown, the supercharger C is configured by including a supercharger main body 1 . The supercharger main body 1 is...

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PUM

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Abstract

A turbocharger includes: a thrust bearing fixed to a turbocharger main body; and a supply oil passage provided in the turbocharger main body to the thrust bearing. The thrust bearing includes: an insertion hole in which to insert the turbine shaft; pressure receiving portions displaced from one another in phase in a rotational direction of the turbine shaft, and each configured to form an oil film between the pressure receiving portion and the thrust collar to receive a thrust load by use of oil film pressure; and intervening portions each located between two of the pressure receiving portions adjacent in the rotational direction of the turbine shaft, and being further away from the thrust collar than the pressure receiving portions. The intervening portion vertically under the insertion hole at least partially has a surface further away from the thrust collar than the other intervening portions.

Description

technical field [0001] The present invention relates to a supercharger that receives a thrust load by utilizing a plurality of pressure receiving portions provided in a thrust bearing. Background technique [0002] A conventional supercharger includes a turbine shaft having a turbine wheel at one end and a compressor wheel at the other end. The turbine shaft is rotatably supported by the bearing housing. Such a supercharger is connected to the engine. The turbine impeller is rotated by the exhaust gas discharged from the engine, and the compressor impeller is rotated by the turbine shaft through the rotation of the turbine impeller. The engine is boosted by using the rotation of the compressor wheel to compress the air. [0003] The thrust bearing is disposed opposite to the thrust ring provided on the turbine shaft with the turbine shaft inserted through the insertion hole. The thrust bearing receives an axial load (thrust load) acting on the turbine shaft. On an oppos...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02B39/14F02B39/00
CPCF02C6/12F01D25/168F01D25/16F05D2220/40F01D25/166F16C33/1045F16C2360/24F16C17/047F16C33/1075F04D29/0413
Inventor 采浦宽小池笃史小岛英之
Owner IHI CORP
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