| 摘要 |
<P>PROBLEM TO BE SOLVED: To increase energy regenerative efficiency while securing the anti-cavitation action, in a hydraulic working machine for regenerating energy of oil discharged from a hydraulic actuator as engine assist force via a regenerative motor. <P>SOLUTION: In a turning circuit of a hydraulic excavator, the accumulator 32 is arranged as a hydraulic pressure source for anti-cavitation, and in turning deceleration, while rotating the regenerative motor 26 by regenerative oil taken out of the meter-out side of a turning motor 12, the oil of the accumulator 32 is supplied as anti-cavitation oil to the meter-in side via a control valve 25. <P>COPYRIGHT: (C)2012,JPO&INPIT |
