SAFETY BRAKE VALVE PNEUMATIC SHUNT UNIT Russian patent published in 2023 - IPC B60T13/66 

FIELD: railway transport.

.SUBSTANCE: railway transport; subway; brake system of a multi-unit rolling stock with an automatic electro-pneumatic brake. Unit includes a plate on which a switching valve and a housing are installed, inside which a safety circuit recovery valve and a pilot shunt valve are integrated, a safety brake valve and a shunt valve are installed on the housing, while the input of the safety brake valve is connected by a pneumatic line L1 to the automatic mode pneumatic line, and the output of the safety brake valve is connected by a pneumatic line L2 to the inlet of the shunt valve and the control input of the valve for restoring the safety circuit, which are connected to each other by a pneumatic line L4, one input of the switching valve is connected by a pneumatic line L3 to the output of the bypass valve, and the second input of the switching valve is connected by a pneumatic line L7 with the input of the shunt pilot valve, the control input of which is connected to the brake line by the L5 pneumatic line, and the output of the pilot shunt valve is connected to the control input of the shunt valve by the L6 pneumatic line.

EFFECT: technical result is to increase the reliability and safety of the braking system of the rolling stock of the railway transport and the subway.

1 cl, 2 dwg