What is the purpose of the air compressor in an air brake system?

The purpose of the air compressor in an air brake system is to generate air pressure for the brake system. This is a crucial component because air brakes rely on compressed air to activate the braking mechanism. When the driver depresses the brake pedal, the compressor builds air pressure that is transmitted through the brake lines to the brake chambers. This pressure causes the brake shoes or pads to engage with the drum or disc, effectively slowing down or stopping the vehicle.

Without adequate air pressure generated by the compressor, the braking system would not function properly, leading to potential safety issues. Thus, the compressor is vital for ensuring that the brakes engage and release correctly, allowing for effective vehicle control and safe operation.