Hydraulic actuator for e.g. vehicle clutch, includes constant delivery pump with outlet opening connected to actuator chamber and accumulator

摘要

The control circuit includes a constant delivery pump (18, 20) (especially a gear pump). Its outlet opening is connected to the actuator chamber (72-C1, 74C2). Its inlet opening is connected to at least one storage chamber (96) of an accumulator (A), closed axially by an accumulator piston.