The present invention discloses a relay valve, comprising a valve body, wherein the valve body is provided with a main valve body assembly, a C piston assembly, a Cv piston assembly, a pre-control chamber, a brake cylinder chamber and an auxiliary air cylinder chamber; the movable main valve body assembly is located at a communication channel between the brake cylinder chamber and the auxiliary air cylinder chamber; the movable C piston assembly is blocked between the brake cylinder chamber and the pre-control chamber; one end of the movable Cv piston assembly blocks by the pre-control chamber; one end of the C piston assembly is in contact with the main valve body, and the other end of the C piston assembly is in contact with one end of a balance mechanism; the other end of the Cv piston assembly is in contact with the other end of the balance mechanism. The beneficial effects of the present invention include better weight drive feature, higher sensitivity, and the brake cylinder pressure changes proportionally with the change of vehicle load.
RELAY VALVE
RELAISVENTIL
VANNE-RELAIS
2024-08-28
Patent
Electronic Resource
English