Trailer control valve for compressed air braking installation of tractor vehicle-trailer combinations has throttle in connecting channel between first relay piston control chamber and second throttle valve control chamber

摘要

A trailer control valve (1) for a compressed air braking installation of tractor vehicle-trailer combinations has a trailer bake line located between the tractor vehicle and the trailer plus a trailer supply line with various features. A throttle (122) is provided in the connecting channel (72) between the first relay piston control chamber (12) and the second throttle valve control chamber (96). A shoulder (118) is provided through which the spring pressure of the valve spring (106) upon the throttle valve control piston (86) can be limited to a certain lift in the direction of a position reducing the flow cross-section of the throttle valve.