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Fixing method of valve mounting part and fixing device of valve mounting part

A fixing method and technology of fixing device, applied in the direction of engine components, combustion engines, machines/engines, etc., can solve the problems of increased friction, inability to sufficiently suppress vibration, and difficult rotation of the shaft, and achieve the effect of suppressing deviation

Active Publication Date: 2020-03-10
IHI CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, in the event of an excessive load on the spring member, the shaft may become difficult to turn due to increased friction between the link member and the bushing.
In addition, if the load on the spring member is too small, the vibration may not be sufficiently suppressed.

Method used

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  • Fixing method of valve mounting part and fixing device of valve mounting part
  • Fixing method of valve mounting part and fixing device of valve mounting part
  • Fixing method of valve mounting part and fixing device of valve mounting part

Examples

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Effect test

no. 1 approach

[0025] Figure 1 ~ Figure 3 The illustrated supercharger 1 is a supercharger for a vehicle, and compresses air supplied to the engine using exhaust gas discharged from the engine, not shown. The supercharger 1 includes a turbine 2 and a compressor (centrifugal compressor) 3 . The turbine 2 includes a turbine housing 4 and a turbine wheel 6 accommodated in the turbine housing 4 . The compressor 3 includes a compressor housing 5 and a compressor impeller 7 accommodated in the compressor housing 5 .

[0026] The turbine impeller 6 is disposed on one end of the rotating shaft 14 , and the compressor impeller 7 is disposed on the other end of the rotating shaft 14 . A bearing housing 13 is arranged between the turbine housing 4 and the compressor housing 5 . The rotating shaft (rotor shaft) 14 is rotatably supported by the bearing housing 13 via a bearing 15 . The supercharger 1 includes a turbine rotor shaft 16 including a rotating shaft 14 and a turbine wheel 6 provided at on...

no. 2 approach

[0052] Next, refer to Figure 7 A second embodiment will be described. The fixing device 200 of this embodiment differs from the fixing device 100 of the first embodiment in that a load sensor 210 is used instead of the spring plunger 110 , and the control unit 220 controls the load sensor 210 and the welding machine 140 . Hereinafter, differences from the first embodiment will be mainly described, and the same reference numerals will be assigned to the same elements and components, and detailed descriptions will be omitted.

[0053] The fixing device 200 includes a fixing unit 101 , a load cell (pressing unit) 210 , jigs 120 and 130 , a welder 140 , and a control unit 220 . The jigs 120 and 130 are mounted on the moving parts 125 and 135 . The load sensor 210 presses the end surface 21 a of the shaft 21 toward the bush 25 similarly to the spring plunger 110 . When the shaft 21 is pressed, the link member 28 fixed to the shaft 21 is also pressed. The load sensor 210 has a ...

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PUM

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Abstract

A fixing method for a valve attachment member fixates a valve attachment member (22) to one end portion of a stem (21) supported on a cylindrical bush (25), and comprises: a support process of arranging a plate spring (31) between the bush (25) and a link member (28) installed in the other end portion of the stem (21) to support the stem (21) by the bush (25); and a fixing process of pressurizing the valve attachment member (22) toward the bush (25) while maintaining a state of relatively pressurizing the link member (28) toward the bush (25), and fixating the valve attachment member (22) to one end portion of the stem (21).

Description

technical field [0001] The invention relates to an exhaust pressure relief valve of a supercharger, in particular to a method for fixing a valve installation part and a fixing device for the valve installation part. Background technique [0002] Conventionally, a supercharger provided with a wastegate valve is known. For example, the supercharger described in Patent Document 1 is equipped with a wastegate, and the wastegate includes: a bush provided to penetrate the outer wall of the turbine housing, a shaft supported by the bush, and a shaft connected to the shaft. A link member at one end of the rod, and a valve mounting member connected to the other end of the shaft. In this wastegate valve, an annular spring member for suppressing vibration (squeak) is provided in a gap between the bush and the link member. [0003] Patent Document 1: Japanese Patent Laid-Open No. 2014-218945 [0004] In the wastegate valve of Patent Document 1, the shaft is rotatably supported by the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02B37/18
CPCF02B37/186Y02T10/12F02B37/12F02B39/16F02B77/11
Inventor 桥本孝治药师寺昭光
Owner IHI CORP