Servo brake for vehicle has control extension and reaction disc having larger diameter than valve clamped to casing interior

摘要

The vehicle servo brake (1) has a valve (7) with a coupling control mounted on the front end face of the valve body (7) to extend from it and come into contact with the rear face of a reaction disc (51). The control and disc have a diameter greater than that of the valve (20) which is clamped onto the inner surface of the valve casing.