A multifunctional timing sprocket cover

Abstract

The invention discloses a multifunctional timing sprocket cover, which comprises the timing sprocket cover, and is characterized in that: the timing chain and the camshaft exhaust side sprocket are located on the inner side of the timing sprocket cover There is a first chain guide groove at the point where the sprocket on the intake side of the camshaft is about to mesh and the point where the sprocket on the intake side of the camshaft is about to separate, and a second chain guide groove is set at the timing chain and the crankshaft sprocket; There are grooves at the top corresponding to the bolts of the intake camshaft and the bolts of the exhaust camshaft, and the semicircular rubber plugs are installed in the grooves; the timing sprocket cover consists of two parts, namely the metal part and the Corresponds to the transparent visible part at the hydraulic tensioner. This structure prevents the occurrence of tooth skipping in the timing chain system through the chain guide groove set on the timing chain cover, and simplifies the working procedure of the engine phase adjustment by setting a semi-circular rubber plug that can be easily disassembled. The viewing part is convenient for directly observing the working condition of the hydraulic tensioner.

Description

technical field [0001] The invention relates to an engine timing system, in particular to a multifunctional timing sprocket cover. Background technique [0002] Engine timing chain system is of great significance in transmitting crankshaft torque and ensuring valve timing accuracy and reliability. The timing sprocket cover seals the timing chain system while also dampening noise. [0003] During the operation of the engine, the timing chain system will skip teeth due to wear of the timing chain and sprocket, excessive fluctuations in the tension of the timing chain system, and cold start, which will change the phase angle of the valve train, resulting in The performance of the engine is reduced, and even the parts of the valve train are damaged. [0004] The timing chain will have a certain amount of elongation after being used for a period of time, and the elongation of the chain will affect the transmission accuracy of the phase, resulting in a deviation of the gas distr...

AI Technical Summary

Problems solved by technology

[0005] As an important part of the timing chain system, the hydraulic tensioner is especially important for its working performance and the lubrication of the timing chain. However, due to the metallic nature of the timing chain cover material, it is impossible to directly observe the hydraulic tensioner. This has also become a huge hidden danger for the failure of the timing chain system

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