| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To extend a pump life by equalizing loads of both hydraulic pumps on the premise that it is a two-pump system. <P>SOLUTION: A shovel circuit structured to separate a hydraulic actuator group into two groups G1, G2 and the groups are respectively driven by first and second hydraulic pumps 20, 21 is connected with processor actuators for wood processing. To conduct a small merge control, discharged oil of both the hydraulic pumps 20, 21 are merged and supplied for a hydraulic actuator of the processor actuators which is suitable for a single flow of which maximum required flow rate can be supplied only by one of the hydraulic pumps in a flat-topped state in which total of respective discharge flow rates becomes equivalent to the above single flow. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
