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Exhaust gas recirculation valve device for vehicle

An exhaust gas recirculation valve, vehicle technology, applied in the direction of exhaust gas recirculation, valve device, lift valve, etc., can solve the problems of reduced strength and shortened life, and achieve improved connection strength, high temperature strength and anti-wear performance, cost reduction effect

Inactive Publication Date: 2014-07-02
HYUNDAI MOTOR CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] Considering the prior art of connecting the valve shaft to the lever and the valve shaft to the clack valve by MIG welding and riveting, there is a need for a method that can properly prevent the loss of strength and shortened life due to welding

Method used

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  • Exhaust gas recirculation valve device for vehicle
  • Exhaust gas recirculation valve device for vehicle
  • Exhaust gas recirculation valve device for vehicle

Examples

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Embodiment Construction

[0027] Reference will now be made in detail to various embodiments of the invention, examples of which are illustrated in the accompanying drawings and described below. While the invention will be described in conjunction with exemplary embodiments, it will be appreciated that present description is not intended to limit the invention to those exemplary embodiments. On the contrary, the invention is intended to cover not only the exemplary embodiments but also various alternatives, modifications, equivalents and other alternatives, modifications, equivalents and others, which may be included within the spirit and scope of the invention as defined by the appended claims. implementation plan.

[0028] Please refer to figure 1 As shown, an exhaust gas recirculation valve device 10 according to various embodiments of the present invention includes a valve housing 20 and an actuator 30 mounted on a bottom surface of the valve housing 20 .

[0029] In the valve housing 20, an exh...

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PUM

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Abstract

An exhaust gas recirculation valve device for a vehicle includes a valve housing having an exhaust gas inlet port and an exhaust gas outlet port, a flap valve rotatably mounted on the valve housing to open and close the exhaust gas outlet port, and a valve shaft fitted to penetrate the flap valve and coupled to the flap valve by electron beam welding to rotate integrally with the flap valve.

Description

[0001] Cross References to Related Applications [0002] This application claims priority from Korean Patent Application No. 10-2012-0155360 filed on December 27, 2012, the entire contents of which are hereby incorporated by reference for all purposes. technical field [0003] The present invention relates to an exhaust gas recirculation (EGR) valve device for a vehicle, and more particularly to an exhaust gas recirculation valve device for a vehicle in which a valve shaft, a lever, a flap valve (flap valve) connected together by electron beam welding. Background technique [0004] Generally, a large amount of substances harmful to humans, such as carbon monoxide and nitrogen oxides, are contained in exhaust gases released from vehicle engines. Strict regulations are being enforced on nitrogen oxides because they are particularly harmful, causing acid rain, global warming, and respiratory problems. [0005] Nitrogen oxides have properties such that, for example, as the com...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02M25/07
CPCF02M25/0787F02M25/0793F02M26/65F02M26/70F16K1/22
Inventor 林在泌郑灿石朴锡日李德宰
Owner HYUNDAI MOTOR CO LTD