An automobile brake valve is divided into an air brake valve and a hydraulic brake valve. The normal operation of the brake valve is of great significance for parking, and it provides technical support for the smooth braking of the car. The development of this technology is of great significance to automobile manufacturing and road traffic safety.
The frequent use of the main brake by medium and heavy vehicles under long-slope and other working conditions will make the thermal load of the braking system very large, and the braking system cannot release the heat to the surrounding environment in time, causing the temperature of the brake drum and the brake shoes to be too high and worn. Faster, so that the main brake loses part or all of the braking performance, which will seriously affect the continuous braking performance of the main braking system, thereby affecting the safety of braking.
The use of the auxiliary braking device can reduce the frequency of use of the main braking system, and reduce a series of problems such as excessive brake temperature, decreased efficiency, and serious wear caused by continuous use of the brake.
Therefore, the application of auxiliary braking devices is becoming more and more extensive. Auxiliary brake devices mainly include: engine brake, exhaust brake valve, hydraulic retarder, and eddy current retarder, and exhaust brake valve is the most cost-effective auxiliary brake device in medium and heavy vehicles and passenger cars. is widely used.
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