Integrated Air Dryer, Compressed Air Brake System and Vehicle

Abstract

The invention relates to an integrated air drying cylinder, a compressed air braking system and a vehicle. The integrated air drying cylinder comprises a drying cylinder pedestal (1), a moisture filter (5), an inlet (6), an outlet (7), an impurity filter (2), a cylindrical container (3) and a grease filter (4). Compressed air output from a compressor enters the annular impurity filter (2) by the inlet, and the impurity filtered air then enters a spiral channel (8). At that time, as the compressed air flows for a long time in ring ways, the temperature falls, and part of cooled grease and moisture drop to the edge of the impurity filter. Then the cooled air enters the grease filter (4) and the moisture filter (5) for removing oil and water. And finally, dried clean air is output through the outlet (7) to the vehicle braking system.

Description

technical field [0001] The invention relates to compressed air drying and filtering equipment in an automobile air brake system, especially an integrated air drying cylinder, and a vehicle compressed air braking system using the integrated air drying cylinder, and also relates to the use of this compressed air braking system of the vehicle. Background technique [0002] At present, large vehicles, such as large trucks, large passenger cars and other vehicles, mostly use compressed air braking systems. In the vehicle air pressure braking system, the gas required for braking is usually provided by an air compressor, and the air compressor will pressurize the air Input to the air storage tank, when the car brakes, the driver steps on the brake pedal, and the above-mentioned compressed air is communicated from the air storage tank to the wheel brake through the pipeline. Due to the continuous mechanical reciprocating motion of the compressor, the temperature of the compressed g...

AI Technical Summary

Problems solved by technology

Due to the continuous mechanical reciprocating motion of the compressor, the temperature of the compressed gas it provides is high and the air contains a large amount of oil and impurities caused by frictional movement. There are long copper pipes used to cool the compressed gas, but condensed water will be produced when the compressed gas is cooled from high temperature to low temperature, and the condensed water mixed with engine oil and impurities will cause corrosion of metal components and rubber seals in the brake system. Therefore, the traditional pneumatic brake system usually adds a pipeline filter and an oil-water separator behind the copper pipe to deal with the brake system. Impurities, engine oil and moisture, but it also makes the system layout and valve product installation too complicated, takes up a lot of space, and is prone to failure due to vibration during vehicle operation

[0003] The compressed air drying device of the brake system in the prior art is increasingly unable to meet the performance requirements of the current brake system. For example, the Chinese utility model patent with the application number of 200720074978.8 can only filter water and oil, and the structure is too simple and the filter is not sufficient ; For example, the Chinese utility model patent with the application number 03237422.4 integrates the unloading valve, the pressure regulating valve and the regenerative gas tank into the dryer. Very good filtration; another example is the invention patent with the publication number CN1973960A, which cannot effectively separate and filter the impurities mixed into the compressed gas

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