What does air compression rely on in air brake systems?

Air compression in air brake systems primarily relies on the air compressor and the governor. The air compressor is a critical component that takes in ambient air and compresses it to build up air pressure within the brake system. This compressed air is essential for the operation of air brakes, as it activates the braking mechanism when needed.

The governor plays a vital role in regulating the air pressure produced by the compressor. It monitors the system's air pressure and controls the compressor’s operation, ensuring that sufficient pressure is available for braking while preventing the system from over-pressurizing. Together, these components ensure that the air brake system has the necessary air pressure to function effectively and safely.

Understanding the roles of the air compressor and governor is essential for anyone operating vehicles equipped with air brakes, as it directly impacts vehicle safety and performance.