Vacuum Brake Booster — Description

The vacuum brake booster reduces the force on the brake pedal, making it easier to drive. The vacuum amplifier uses a diaphragm, on both sides of which a vacuum is created during normal operation. During braking, air is supplied from one side of the diaphragm, forming atmospheric pressure. Due to the difference in pressure transmitted through the diaphragm, the pusher moves in the direction of rarefaction (vacuum), providing auxiliary force for braking. When the brake pedal is released, air is pumped out of the amplifier cavity through the control valve, creating a vacuum.