Hydraulic Power System for Heavy Equipment

Heavy equipment hydraulic systems of the present invention is an oil pressure generating device dual circuit 10, a plurality of the same operation the same operation made actuator 21 which continues the supply of the high-pressure flow in the fault condition using a plurality of the hydraulic pressure generating device 11 each one integrated directional control valve 23 and a dedicated controller 27 and the integrated sensor 29, the directional control valve synchronization circuit (20), one independently operating actuator (31) a plurality of actuators directional control valve for controlling a ( 33) and the hydraulic supply line (40, which supplies the high pressure flow rate of the directional control valve in parallel circuit 30, oil pressure generating device dual circuit 10 for controlling a respective one integrated controller 37, and only the sensor 39), back-flow preventing ensure high reliability in operation, with a plurality of check valves are capable of controlling the circuit and simplify the control algorithm manageable by including (13-1,13-2,33-1,34-1,35-1) Fig. available, in particular, the back up fail-valve concept assay Limiting the driving of the actuators is also pro failure during characterized made.