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Gas exhaust control valve

A technology for controlling valves and valve plates, which is applied in the direction of control valves, exhaust devices, valve devices, etc., which can solve the problems of high cost of passive valves, obstruction of exhaust flow, increased back pressure, etc., to reduce costs and simplify installation and manufacturing The effect of craft

Pending Publication Date: 2019-07-02
TENNECO SUZHOU EMISSION SYST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this case, the traditional exhaust muffler is difficult to meet the requirements of the OEM, and some new technologies need to be adopted, such as passive valves, etc.
Passive valves on the market generally have at least one of the following problems: one is that the back pressure increases due to the obstruction of the exhaust flow by the passive valve plate; the other is that the cost of the passive valve is too high

Method used

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  • Gas exhaust control valve
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Embodiment Construction

[0020] Please refer to Figure 1 to Figure 6 As shown, the present invention discloses an exhaust control valve 100, which can be applied in an exhaust muffler or an exhaust pipe. The exhaust control valve 100 includes a tubular housing 1, a valve cover 2 covering the housing 1, a rotating shaft 3 passing through the housing 1 and the valve cover 2, and fixed on the rotating shaft 3. A valve plate 4 that rotates together with the rotating shaft 3 and a spring 5 that cooperates with the rotating shaft 3 .

[0021] In the illustrated embodiment of the present invention, the casing 1 is provided with a notch 11, and the valve cover 2 includes a main body 21 covering the notch 11 and an extension part bent from the main body 21. twenty two. The extension portion 22 is flat. The extension part 22 is provided with a base part 221 close to the housing 1 and an end part 222 away from the housing 1, the base part 221 is wider than the end part 222, so that the extension part 22 has ...

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Abstract

The invention discloses a gas exhaust control valve. The gas exhaust control valve comprises a tubular shell and a valve cover assembly covering the shell, a notch is formed in the shell, the valve cover assembly comprises a valve cover, a rotating shaft penetrating through the valve cover, a valve plate fixed on the rotating shaft so as to rotate together with the rotating shaft, and a spring matched with the rotating shaft, and the valve cover comprises a main body part covering the notch and an extending part formed by bending from the main body part; and one end of the spring is fixed on the extending part, the other end of the spring is fixed on the rotating shaft, protruding parts and complete perforations penetrating through the protruding parts are formed in each of the two sides of the main body part, the gas exhaust control valve further comprises two bushes respectively positioned in the perforations from the inside to the outside, and the rotating shaft penetrates through the bushes. In this way, the installation and manufacture of the valve cover assembly can be carried out outside the shell, the installation and manufacturing process of the valve cover assembly is simplified accordingly, and the costs are reduced.

Description

technical field [0001] The invention relates to an exhaust control valve, which belongs to the technical field of aftertreatment of engine exhaust gas. Background technique [0002] With the increase of car ownership, car noise has become an increasingly serious social problem. Exhaust noise is one of the main sound sources in automobile noise. National regulations and various OEMs have put forward more and more strict requirements on exhaust noise. In addition, energy saving and emission reduction as well as market competition also put forward requirements for lightweight and low cost of the exhaust system. In this case, the traditional exhaust muffler is difficult to meet the requirements of the OEM, and some new technologies, such as passive valves, need to be adopted. Passive valves on the market generally have at least one of the following problems: one is that the back pressure increases due to the obstruction of the exhaust flow by the passive valve plate; the other...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01N1/08F01N13/08F01N13/18
CPCF01N1/08F01N13/08F01N13/1838F01N1/16F01N13/18F16K15/03
Inventor 不公告发明人
Owner TENNECO SUZHOU EMISSION SYST