Timing cover for reducing engine front end noise and production method thereof

Abstract

The invention discloses a timing cover for reducing engine front end noise and a production method thereof. The timing cover comprises a plastic cover connected with an engine cylinder cover, wherein the plastic cover is provided with a groove fitting a boss arranged on the engine cylinder cover; and a rubber sealing piece is arranged at the edge of the groove on the plastic cover. The timing cover is added with the rubber sealing piece at the edge of the matched position between the boss and the groove on the engine cylinder cover and the plastic cover; the rubber sealing piece eliminates a fit gap between the engine cylinder cover and the plastic cover, so that the noise cannot be sent out between the engine cylinder cover and the plastic cover, the better noise reduction effect is achieved, the noise isolation effect is good, and the vehicle driving comfort can be improved; and the production method of the timing cover connects the rubber sealing piece and the plastic cover as a whole through vulcanization molding, so that the connecting reliability is high, the sealing performance is guaranteed, and the noise isolation effect is improved.

Description

technical field [0001] The invention relates to a timing cover on an engine, in particular to a timing cover for reducing noise at the front end of an engine and a production method thereof. Background technique [0002] With the continuous improvement of people's material living standards, cars are no longer luxury accessories, but gradually become the necessities of every family's life. Driving performance and riding comfort can bring better driving experience to family members. [0003] The timing cover is installed outside the timing gear train, and the timing gear train is placed in a relatively closed environment, and its main function is to prevent dust and noise. At present, there are two kinds of timing covers that are widely used, one is aluminum cover and the other is plastic cover. Aluminum cover is mostly used in timing chain transmission system, and plastic cover is mostly used in timing belt transmission system. Relatively speaking, the structure of the alum...

AI Technical Summary

Problems solved by technology

[0004] The plastic cover has the advantages of simple structure and light weight, but the vehicle engine timing cover driven by the traditional timing belt has poor noise isolation effect on the engine timing gear train, and the low-frequency noise emitted by the timing gear train It is easy to enter the car and seriously affect the driving comfort of the car

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