Waste gas bypass valve assembly for supercharger and vehicle

A wastegate valve and supercharger technology, applied in the direction of machines/engines, internal combustion piston engines, mechanical equipment, etc., can solve the problems of product price increase, complex production process requirements, etc., to reduce the frequency of action and reduce the dimensional accuracy requirements , The effect of improving durability and reliability

Inactive Publication Date: 2021-09-03
CHONGQING CHANGAN AUTOMOBILE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] see Figure 11 , the existing wastegate valve assembly 7 includes the existing valve plate 71, the existing gasket 72 and the existing rocker arm 73, and the main optimization scheme for improving the knocking noise of the wastegate plate is the existing rocker arm 73 and the existing rocker arm 73 and the existing rocker arm 73. Spring washers 74 are added between the existing gaskets 72. This solution needs to increase the use of high-temperature resistant spring washers, resulting in increased product prices and more complex production process requirements.

Method used

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  • Waste gas bypass valve assembly for supercharger and vehicle
  • Waste gas bypass valve assembly for supercharger and vehicle
  • Waste gas bypass valve assembly for supercharger and vehicle

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Experimental program
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Embodiment Construction

[0031] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0032] see figure 1 with Figure 10 , the wastegate valve assembly for the supercharger shown includes a volute 1 and a wastegate assembly 2, the wastegate assembly 2 is arranged in the wastegate hole 11 inside the volute 1 On the open side and can be flipped open to one side, the inner side wall of the volute 1 close to the wastegate valve assembly 2 is provided with a limit protrusion 3, when the wastegate valve assembly 2 is opened to the maximum angle, the limit The protrusion 3 interferes with the wastegate assembly 2 .

[0033] see Figure 4 with Figure 5 , the wastegate assembly 2 includes a valve plate 21, a gasket 22 and a rocker arm 23, one end of the rocker arm 23 is connected to the actuator 4, and the other end is provided with a connecting plate 24, and the connecting plate 24 is provided with A through hole 241 that is loosely fitted with the co...

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PUM

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Abstract

The invention discloses a waste gas bypass valve assembly for a supercharger and a vehicle. The waste gas bypass valve assembly for the supercharger comprises a volute and a waste gas bypass valve component; the waste gas bypass valve component is arranged on the opening side of a waste gas bypass hole in the volute and can be turned over and opened towards one side; and a limiting protrusion is arranged on the inner side wall of the volute close to the waste gas bypass valve component. When the waste gas bypass valve component is opened to the maximum angle, the limiting protrusion is in interference fit with the waste gas bypass valve component. According to the invention, durable reliability of products can be guaranteed, and noise of the waste gas bypass valve is reduced.

Description

technical field [0001] The invention relates to an engine, in particular to a wastegate valve assembly for a supercharger and a vehicle. Background technique [0002] The exhaust gas turbocharger improves the air intake of the engine by recycling the exhaust gas energy generated by engine combustion. The application of the exhaust gas turbocharger solves the problem of naturally aspirated engines caused by the decrease of atmospheric density with the increase of altitude under plateau conditions. The problem of insufficient power is also used as one of the key technologies to improve engine efficiency, which promotes the upgrade goal of engine energy saving and emission reduction. Therefore, gasoline engine turbocharging technology has become the main technical route of passenger car engines at this stage. [0003] With the continuous improvement of the market's requirements for the driving performance and comfort of passenger vehicles, and the further stringent requirement...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02B37/18
CPCF02B37/183F02B37/186Y02T10/12
Inventor 李倩倩李元伟
Owner CHONGQING CHANGAN AUTOMOBILE CO LTD
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