Valve body connection system and exhaust gas recirculation system

A technology for connecting systems and valve bodies, applied in the direction of connecting components, lifting valves, valve devices, etc., to achieve the effects of shortening length, reducing resistance loss, and increasing effective use range

Active Publication Date: 2021-07-16
UNITED AUTOMOTIVE ELECTRONICS SYST
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a valve body connection system and an exhaust gas recirculation system, which can shorten the length of the fasteners to the greatest extent on the premise of ensuring that the effective screwing length of the fasteners is not reduced, so as to solve the problem of low-pressure exhaust gas circulation. The valve may have problems such as difficulty in introducing exhaust gas, limited by the design space of the engine, etc., to reduce the resistance loss inside the air passage of the valve body

Method used

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  • Valve body connection system and exhaust gas recirculation system
  • Valve body connection system and exhaust gas recirculation system
  • Valve body connection system and exhaust gas recirculation system

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Embodiment Construction

[0028] The specific implementation manner of the present invention will be described in more detail below with reference to schematic diagrams. The advantages and features of the present invention will be more apparent from the following description. It should be noted that all the drawings are in a very simplified form and use imprecise scales, and are only used to facilitate and clearly assist the purpose of illustrating the embodiments of the present invention.

[0029] The low-pressure exhaust gas recirculation valve is a key component responsible for controlling the amount of exhaust gas intake in the low-pressure exhaust gas recirculation system. There is a low-pressure exhaust gas recirculation valve with a structure such as Figure 1a and Figure 1b As shown, its structure is mainly composed of a motor 101, a transmission system 102, a sensor 103 and a butterfly valve connection system 104, etc. The butterfly valve connection system 104 is a direct mechanical actuator...

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Abstract

The invention relates to a valve body connecting system, by limiting the length of the fastener to a set length, and embedding the top of the fastener into the valve shaft, the valve plate is fixedly connected with the valve shaft, thereby enabling Under the premise of ensuring that the effective screw-in length of the fastener is not reduced, the length of the fastener is minimized to reduce the resistance loss inside the air passage of the valve body and increase the effective use range of the low-pressure exhaust gas circulation system. At the same time, the design of the countersunk head can make the through-groove area of ​​the valve shaft deform more easily when subjected to clamping force, so that the same effect as the flat-head fastener can be obtained by applying a small installation torque.

Description

technical field [0001] The invention relates to the technical field of exhaust gas circulation, in particular to a valve body connection system and an exhaust gas recirculation system on a low-pressure exhaust gas circulation valve. Background technique [0002] Exhaust gas recirculation is a technology that reintroduces part of the exhaust gas generated by gasoline or diesel engines back to the intake side and participates in combustion again. This technology can delay the combustion process in the engine cylinder, reduce combustion, pressure release speed and pump At the same time, it also reduces the combustion temperature and oxygen concentration in the engine cylinder, thus inhibiting the production of nitrogen oxides during the combustion process, and can improve the fuel economy of the car. According to the position of air intake and bleed air in the exhaust gas circulation system, the exhaust gas circulation system is divided into a low-pressure exhaust gas circulati...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K1/22F16K1/32F16K1/48F16K31/04F16B35/06
Inventor 于东汪植亮于明涛宋士磊黎阳高雅
Owner UNITED AUTOMOTIVE ELECTRONICS SYST
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