| 摘要 |
A valve arrangement for use in a rail brake system having wheel slide protection. The valve has an inlet port (1) supplied from a distributor or load relay valve and an outlet port (2) leading to at least one brake cylinder. The valve arrangement comprises a hold diaphragm (3) adapted to control air flow between the inlet port and the outlet port and a vent diaphragm (10) adapted to control air flow between the outlet port and the exhaust. The hold diaphragm is controlled by a first solenoid (6) and the vent diaphragm is controlled via a further diaphragm (12), which further diaphragm is controlled by a further solenoid (13). |
