Working principle of rear brake distributor for van

When the foot presses the brake pedal, the main brake pump acts: the medium is compressed to the brake cylinder, which plays a braking role, and the medium oil, brake oil and gas play a braking role. The working principle of brake master cylinder using air brake is basically the same as that of brake master cylinder using oil brake, and both of them act as valves.

The difference is that the master cylinder of oil brake will control the brake oil to flow back to the oil storage tank after the braking action, while the vehicle with air brake will generally have several large gas cylinders hanging on the frame, and the gas will be directly discharged after the braking action, so we often hear the loud exhaust sound when the truck brakes.