An actuator unit includes a rod side chamber and a piston side chamber defined in the cylinder by a piston; a tank; a direction control valve configured to allow a working fluid discharged from the pump to be supplied selectively to the rod side chamber and the piston side chamber; a first control passage the rod side chamber with the tank; a second control passage the piston side chamber with the tank; a first variable relief valve provided on the first control passage, the first variable relief valve being configured to be varied a valve opening pressure; a second variable relief valve provided on the second control passage, the second variable relief valve configured to be varied a valve opening pressure; and a center passage the tank with a interior of the cylinder.
ACTUATOR UNIT
BETÄTIGUNGSEINHEIT
UNITÉ D'ACTIONNEUR
2020-04-29
Patent
Electronic Resource
English
IPC: | F15B SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL , Druckmittelbetriebene Systeme allgemein / B61F Untergestelle für Schienenfahrzeuge, z.B. Fahrgestellrahmen, Drehgestelle oder Anordnungen der Radsätze , RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES / F16F SPRINGS , Federn |