A HYDRAULIC SYSTEM AND A METHOD FOR CONTROLLING A HYDRAULIC SYSTEM |
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| 申请号 | EP11866576 | 申请日 | 2011-05-31 | 公开(公告)号 | EP2715154A4 | 公开(公告)日 | 2014-12-10 |
| 申请人 | VOLVO CONSTR EQUIP AB; | 发明人 | HEYBROEK KIM; WIKTOR ROLAND; | ||||
| 摘要 | As such, the present invention relates to a hydraulic system (10) for a working machine (101). The hydraulic system (10) comprises a hydraulic actuator (12) and a first hydraulic machine (14) for supplying fluid to the hydraulic actuator (12). The hydraulic system (10) further comprises a hydraulic transformer (28) for supplying fluid to the hydraulic actuator (12) in parallel with the first hydraulic machine (14), and an accumulator (38) for fluid. The hydraulic transformer (28) comprises a first port (30) and a second port (32) and the transformer (38) is adapted to transform a first pressure and a first flow at the first port (30) to a second pressure and a second flow at the second port (32). The second port (32) of the hydraulic transformer (28) is in fluid communication with the hydraulic actuator (28) and the first port is in communication with the accumulator (38). | ||||||
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