An air brake or, a compressed air brake system, is a type of friction brake for vehicles in which compressed air pressing on a piston is used to apply the pressure to the brake pad needed to stop the ...

At the heart of a commercial vehicle’s air brake system is its air compressor, which pressurizes air in the primary and secondary tanks to provide power for the air brakes and other pneumatic systems.

Many of the larger vehicles on our roads have one intriguing thing in common: They can make sudden, loud, gas-escaping hissing noises. These noises, admittedly, have made this writer jump — on more ...

When the brake pedal is pressed, the exhaust passage will be closed and the air intake passage opens and compressed air goes back to the chamber. During the return stroke, the exhaust passage opens ...