| 摘要 |
A valve for an antiskid braking system of the type in in which there is a source of braking pressure connectable to the brakes by means of a valve arrangement controlled by a device which is sensitive to the dynamic state of the wheels of the vehicle to connect the brakes to a discharge conduit if the wheels approach a state of incipient skid, the discharge conduit leading to a valve which is sensitive to the braking pressure to release the brakes in one of two different ways depending on the braking pressure which exists when the state of incipient skid arises. The valve means includes a communication part between an inlet and an outlet port, with a valve shutter biased by a spring to a first position against a shoulder of the port, in which position fluid flow is allowed by grooves in the face of the shutter and by a flexible rim the shutter is movable against the action of the spring to shut off the communication port if the braking pressure exceeds a predetermined threshold.
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