| 摘要 |
<p>There is provided a split-flow hydraulic pump-equipped operating machine. The travel independent valve V13 is designed to be switched to the merging position 22 in the case of driving the front working device 11 without actuation of the travel device 5 or in the case of driving the travel device 5 and the front working device 11 concurrently, and switched to the independently feeding position 23 in the case of driving the travel device 5 without actuation of the front working device 11. The load sensing system controls the discharge flow rate of the hydraulic pump 18 on the basis of a pressure difference between the discharge pressure of the hydraulic pump 18 and the maximum load pressure of the hydraulic actuator in any of the case of driving the travel device 5, the case of driving the front working device 11, and the case of driving both the travel device 5 and the front working device 11.</p> |
