| 摘要 |
PROBLEM TO BE SOLVED: To provide a simultaneous recovery system of pressure oil energy simultaneously and efficiently recovering the energy of return pressure oil from a plurality of actuators. SOLUTION: The return pressure oil outflowing from second chambers 2b and 12b of the hydraulic actuators 1 and 11 is fed to hydraulic pump motors 9 and 19 as recovery means via recovery circuits 6, 7, 8, 16, 17 and 18. The pressure oil energy discharged from the hydraulic pump motors 9 or 19 mechanically connected to the hydraulic pump motors 9 or 19 is stored in the accumulator 54 as the storage means, so that the return pressure oil from the plurality of hydraulic actuators can be simultaneously recovered. COPYRIGHT: (C)2004,JPO |
