The invention discloses a double-valve-port electric pneumatic valve. The double-valve-port electric pneumatic valve comprises a valve body, and an upper cover, a double-rubber valve rod, an inflating valve base, a control piston and an exhaust valve base are arranged in the valve body. The upper portion of the double-rubber valve rod is located in the upper cover, and a valve rod reset spring is arranged at the position, between the double-rubber valve rod and the upper cover, in the upper cover; the inflating valve base is located below the upper cover and matched with a rubber valve element on the upper portion of the double-rubber valve rod to form a control valve port A, the control piston is located below the double-rubber valve rod, and the upper end of the control piston is matched with a rubber valve element on the lower portion of the double-rubber valve rod to form a control valve port B; the exhaust valve base is located below the control piston, and a piston reset spring is arranged between the control piston and the exhaust valve base. Opening and closing of the double valve ports are controlled according to the working state of a brake solenoid valve and a release solenoid valve, graduated brake and graduated release of a brake cylinder are achieved by means of the amplification function of the double valve ports, and therefore the brake cylinder has the functions of electric control brake, electric control release and pressure maintaining.
Double-valve-port electric pneumatic valve
2016-01-06
Patent
Electronic Resource
English
IPC: | B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF |