Fig. 6.3. Vacuum amplifier of brakes of the Camry car: 1 – brake hose No. 3; 2 – brake hose No. 2; 3 – brake hose No. 5; 4 – brake hose No. 4; 5 – main brake cylinder assembled; 6 – flank of the main brake cylinder (1MZ-FE); 7 – vacuum

The vacuum amplifier of brakes reduces effort to a brake pedal, facilitating driving. In the vacuum amplifier the diaphragm (fig. 6.3) on both sides of which at a normal operating mode depression is created is used. When braking on the one hand of a diaphragm air, forming atmospheric pressure moves. At the expense of a difference of pressure transmitted through a diaphragm, the pusher moves towards depression (vacuum), providing auxiliary force for braking. At a brake pedal otpuskaniye air is pumped out from a cavity of the amplifier via the control valve, creating depression.