| 摘要 |
A park brake control assembly (10) for a rail vehicle having a brake pipe (20), a distributor (30), an air supply reservoir (40), one or more brake cylinders (50) and one or more pneumatically operated park brakes (60), the distributor (30) and the park brake control assembly (10) each having an output port (35, 15), wherein the park brake control assembly (10) includes a plurality of valves (11, 12) responsive to one or more of the following: (a) brake pipe air pressure; (b) air pressure in the output port (35) of the distributor (30); (c) air pressure in the output port (15) of the assembly (10). |
