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Engine valve rocker arm

An engine valve, valve rocker arm technology, applied in engine components, machines/engines, mechanical equipment and other directions, can solve the problems of poor switching reliability, large moment of inertia and damping loss, etc., to achieve high reliability, reduce the moment of inertia and Damping loss and improved sealing effect

Inactive Publication Date: 2012-02-15
CHINA JIALING IND GROUP
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0003] In order to solve the problems of large moment of inertia and damping loss of multiple rocker arms in the prior art and poor reliability of high-speed and low-speed intake cam switching, the purpose of the present invention is to provide an engine valve rocker arm, which can be adjusted according to the engine speed. Realize the switching of high and low speed intake cams, the moment of inertia and damping loss are small, the switching reliability is high, and the power universal performance of the engine is improved

Method used

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Embodiment Construction

[0035] Below, refer to the attached Figure 1-9 The specific embodiment of the present invention is described:

[0036] Such as figure 1 As shown, the intake valve of the traditional internal combustion engine is controlled by a cam, and the lift of the valve is not variable.

[0037] Such as figure 2 As shown, the engine valve lift variable device in the prior art, the high-speed intake cam and the low-speed intake cam usually use two or more rocker arms to realize the opening and closing control of the intake valve, although this structure is to a certain extent The air intake adjustment of the engine has been changed, but due to the problems of large moment of inertia and damping loss of multiple rocker arms, and poor reliability of switching between high and low speed intake cams, the performance of the engine cannot be fundamentally changed.

[0038] Such as image 3 As shown, the engine valve rocker arm 10 of the present invention can rotate around the rocker arm s...

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Abstract

The invention discloses an engine valve rocker arm which is provided with a high-speed inlet cam control part and a low-speed inlet cam control part, wherein the high-speed inlet cam control part is provided with a high and low speed cam switching control mechanism. The engine valve rocker arm can realize the purpose of mutual switching of a high-speed inlet cam and a low-speed inlet cam by the high and low speed cam switching control mechanism arranged on the high-speed inlet cam control part. The amount of the valve rocker arm is reduced, the rotational inertia and the damping loss of the valve rocker arm are reduced, and the switching reliability of the high-speed inlet cam and the low-speed inlet cam can be improved.

Description

technical field [0001] The invention relates to an engine valve rocker arm. technical background [0002] Engine variable valve timing and lift technology is widely used in automobiles, and the technology is mature. However, for some industries with special requirements, such as the motorcycle industry, variable valve timing and lift technology has not been widely used due to constraints such as cost and structural volume. Even in some applications, two or more rocker arms are mostly used to realize the opening and closing control of the valve. Although the air intake adjustment of the engine has been changed to a certain extent, due to the large moment of inertia and damping loss of multiple rocker arms, high and low speed switching Poor reliability and other issues, resulting in the universal performance of the engine can not be fundamentally changed. Contents of the invention [0003] In order to solve the problems of large moment of inertia and damping loss of multip...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01L1/18
Inventor 刘强徐毅陈光毓谭红梅谢建
Owner CHINA JIALING IND GROUP
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