LOCKING APPARATUS OF INERTIAL MASS DRIVE HYDRAULIC CIRCUIT SYSTEM

摘要

An apparatus for locking of an inertial mass drive hydraulic circuit system having a hydraulic pump, an actuator driven by the hydraulic pump for driving a relatively large inertial mass, and a directional control valve mounted in line connecting the hydraulic pump with the actuator. An on-off device is interposed between the actuator and the hydraulic pump for opening or closing the line, and a sensor is provided for sensing the discharge condition of the hydraulic pump. The sensor generates a signal for actuating the on-off device.