The vacuum amplifier of brakes reduces effort to a brake pedal
, facilitating driving. In the vacuum amplifier the diaphragm, at which is used at a normal operating mode from both parties depression. At braking on the one hand diaphragms air moves, atmospheric pressure thereby is created. At the expense of the difference of pressure transferred through a diaphragm, a pusher moves towards depression (vacuum), providing auxiliary force for braking. At отпускании
pedals of a brake air is pumped out from an amplifier cavity through the control valve and depression is created.