| 摘要 |
<p>First and second hydraulic pumps 15, 16 each adapted to operate plural actuators are activated by separate electric motors 13 and 14, respectively, and in accordance with signals which are provided from a controller 32 on the basis of operations of levers 26 SIMILAR 31, the number of revolutions of the electric motor 13 and that of the electric motor 14 are controlled each independently and simultaneously to control the discharge rates of both hydraulic pumps 15 and 16. <IMAGE></p> |
