PNEUMATIC BRAKE ACTUATOR OF VEHICLE Russian patent published in 2020 - IPC B60T13/26 

FIELD: machine building.

SUBSTANCE: invention relates to machine building, particularly, to pneumatic braking systems of wheeled vehicles. Brake drive comprises compressor communicated with receivers. Receivers are connected via main braking valve with brake pedal drive to chambers of brake chambers of front and rear working circuits. Third receiver functions as a spare parking system. Main brake valve is made as two-section and is equipped with the third parallel section connected to the drive from the brake pedal together with the main brake valve, and generates the integral brake valve with the latter. In normal operating position braking function is provided by main braking system by means of main brake valve. Spare parking braking system is disconnected from drive on pedal side.

EFFECT: emergency braking is provided when the braking system circuits fail due to combination of its control elements.

1 cl, 3 dwg