Protective device for electric exhaust gas recirculation (EGR) valve

A technology of EGR valve and protection device, which is applied in the direction of charging system, engine components, combustion engine, etc., can solve the problems of EGR valve failure and unavailability, valve unusability, bending deformation, etc., achieve simple structure, solve valve failure, tightness, etc. Appropriate effect

Inactive Publication Date: 2013-10-02
WUXI LONGSHENG TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, since this linear sensor is a plastic product, it is very brittle, and it will be damaged if you are not careful during use and packaging and transportation, resulting in the failure of the entire EGR valve. In addition, it has pins inside, which are affected by external influences. It will bend and deform, making the valve unusable

Method used

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  • Protective device for electric exhaust gas recirculation (EGR) valve
  • Protective device for electric exhaust gas recirculation (EGR) valve

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Embodiment Construction

[0016] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0017] An electric EGR valve protection device, its structure is as follows figure 1 shown. Including body 1, top cover 2 and handle 3. The body 1 is matched with the shell of the linear sensor B of the electric EGR valve A, and the top cover 2 is fixedly connected to the top of the body to protect the side wall of the linear sensor shell; the handle 3 is set perpendicular to the top cover 2 and fixedly connected to the top cover 2 superior.

[0018] Several protruding reinforcing ribs 4 are arranged in parallel on the peripheral wall of the body. The reinforcing ribs protrude both toward the inner cavity of the body and outwardly to ensure the tightness of the present invention during assembly with the linear sensor.

[0019] Handle 3 is used to remove the invention from the linear sensor when the electric EGR valve is assembled. ...

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Abstract

The invention discloses a protective device for an electric exhaust gas recirculation (EGR) valve. The protective device comprises a body matched with a linear sensor shell of the electric EGR valve; the top of the body is provided with a top cover used for protecting the side wall of the linear sensor shell; and the top cover is fixedly connected with a handle perpendicular to the top cover. The protective device is simple in structure and low in cost, and is applied to the electric EGR valve to protect a linear sensor, can ensure that the electric EGR valve is not damaged or deformed in the transportation process, and effectively solves the problem that the valve fails caused by failure of the linear sensor.

Description

technical field [0001] The invention relates to a protection device in an exhaust gas recirculation system of an engine, in particular to a device for protecting an electric EGR valve during transportation. Background technique [0002] In the engine exhaust gas recirculation system (EGR system), the EGR valve is mainly used to adjust and control the flow of recirculated exhaust gas. The electric EGR valve controls the opening of the intake port through the internal DC motor, thereby adjusting the flow of exhaust gas, so that the exhaust gas and fresh The air is mixed in a certain proportion and returned to the cylinder for recirculation to reduce the combustion temperature and combustion speed in the cylinder, further reducing NO X emissions. Compared with the pneumatic EGR valve, the electric EGR valve has the characteristics of fast response and more stable operation, and the electric EGR valve can also solve the problem that some vehicles do not have a vacuum source, so...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02M25/07F02M26/74
CPCY02T10/12
Inventor 陈华
Owner WUXI LONGSHENG TECH
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