Small output volume automobile engine chain timing system

A technology of automobile engine and timing system, applied in the direction of engine components, machine/engine, belt/chain/gear, etc., can solve the problems of increased system vibration, large friction loss of timing system, loss of tensioning effect, etc. Smooth and quiet movement, reducing system friction loss, reducing the effect of engine vibration
CN107524488AInactive Publication Date: 2017-12-29BRILLIANCE AUTO
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
BRILLIANCE AUTO
Publication Date
2017-12-29
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a small output volume automobile engine chain timing system. A high strength nylon chain wheel structure is adopted, contact between a chain and a chain wheel is changed into nylon-steel contact from steel-steel structure contact, kneading impact between the tooth-shaped chain and the chain wheel is greatly reduced, the NVH of the timing system is improved, and system motion is more stable and silent. According to the small output volume automobile engine chain timing system, an anti-attrition layer is additionally arranged on a guide rail, the friction coefficient is reduced, sliding friction force between a chain plate on an original chain and the guide rail is reduced, the system friction loss is reduced, and the engine fuel using rate is improved. A filter net used for filtering engine oil is additionally arranged in a tensioning device, impurities are prevented from entering the tensioning device, and major engine quality accidents caused by the timing system are avoided. Meanwhile, the manner that the guide rail is linked and fixed through a pin shaft is adopted, a traditional bolt installing and fixing manner is replaced, transverse abrasion of the guide rail is reduced, and the engine assembly efficiency is improved.
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Description

technical field

[0001] The invention relates to a device for an automobile engine acting on a timing belt or a chain, in particular to a small-displacement automobile engine chain timing system. Background technique

[0002] The timing chain system of the automobile engine works in an environment with oil injection lubrication. The tensioner tensions the chain through the pressure of the engine oil. As the engine wears and ages, various impurities in the oil easily enter the tensioner, resulting in tension If the oil is not flushed in time, the tensioner will not respond in time, lose the tensioning effect, the vibration of the system will intensify, and even cause the chain to skip teeth, and the sequence of intake and exhaust will be disordered. In most cases, high-speed collision between the engine piston and the valve will occur. The engine will be destroyed in an instant.

[0003] The chain and sprocket of the existing engine timing chain system are all made of steel. ...

Claims

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