| 摘要 |
The invention relates to a hydraulic system (20) for a working machine (1). The hydraulic system is a load sensing (LS) system and comprises a first hydraulic actuator (24) and a first control valve (25) for controlling the flow of hydraulic fluid from a pump (21) to the first hydraulic actuator and for draining hydraulic fluid from the first hydraulic actuator, respectively, and a second hydraulic actuator (26) and a second control valve (27) for controlling the flow of hydraulic fluid from the pump to the second hydraulic actuator and for draining hydraulic fluid from the second hydraulic actuator, respectively. The hydraulic system further comprises a first hydraulic circuit (28) for providing an LS pressure for the first actuator (24) and a second hydraulic circuit (29) for providing an LS pressure for the second actuator (26). At least one of the first and second hydraulic circuits (28, 29) comprises an offset valve (30a, 30b) for changing the LS pressure before providing the LS pressure to the pump (21). |
