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Timing sprocket cover

A timing sprocket and cover technology, applied to engine components, machines/engines, casings, etc., can solve the problems of large meshing order noise, loud noise, and inability to eliminate it

Active Publication Date: 2015-09-23
CHERY AUTOMOBILE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The timing sprocket system has its own advantages, but there are also problems that cannot be eliminated. Since the meshing chain links and sprockets in the timing sprocket system are made of rigid materials, the noise of the meshing order is large.
The timing sprocket cover makes the timing sprocket system sealed, so it can reduce noise to a certain extent, but the noise from the timing sprocket system is still relatively large, so it is necessary to provide a better Noise reducing timing sprocket cover

Method used

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  • Timing sprocket cover

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Embodiment Construction

[0007] The purpose of the present invention is to carry out noise reduction to engine better, and the scheme that it takes is as figure 1 As shown, a timing sprocket cover includes a cover body 10 , and the cover body 10 is provided with a raised portion 11 that increases the natural frequency of the cover body 10 . First of all, the raised portion 11 referred to in this application is essentially different from the reinforcing rib 12 provided on the cover body 10, as figure 1 As shown in , the reinforcing rib 12 is the original rib on the inner side of the cover body 10 and is provided between adjacent bolt holes to increase the strength of the cover body 10 . Although the protrusions provided in this application can also increase the strength of the cover body 10 to a certain extent, they are mainly used to increase the natural frequency of the cover body 10. In general operation, the protrusions set per unit area The density of 11 is greater than that of the reinforcing ri...

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Abstract

The invention discloses a cover cap for a timing sprocket, which comprises a cover cap body, wherein, a lug boss that increases the natural frequency of the cover cap body is formed on the cover cap body. The lug boss that increases the natural frequency of the cover cap body is formed on the cover cap body, so that the natural frequency of the cover cap body is far greater than the frequency of noise, the sound insulation effect of the cover cap body can be improved, and better noise reduction effect can be achieved.

Description

technical field [0001] The invention relates to the field of automobile engines, in particular to a timing sprocket cover. Background technique [0002] The timing sprocket system is more and more widely used in the transmission system of the engine due to its permanent maintenance-free and small space occupation. The timing sprocket system has its own advantages, but there are also problems that cannot be eliminated. Because the meshing chain links and sprockets in the timing sprocket system are made of rigid materials, the noise of the meshing order is large. The timing sprocket cover makes the timing sprocket system sealed, so it can reduce noise to a certain extent, but the noise from the timing sprocket system is still relatively large, so it is necessary to provide a better Noise reducing timing sprocket cover. Contents of the invention [0003] The purpose of the present invention is to provide a timing sprocket cover, which can better insulate the noise inside th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02F7/00F02B77/13
Inventor 孟莉莉
Owner CHERY AUTOMOBILE CO LTD
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