| 摘要 |
<p>The hydraulic apparatus has two pumps (10, 11) both of which deliver pressure medium from a reservoir (12) into delivery circuits associated with them. A three-way flow regulating valve (15) through which, if necessary, pressure medium can be delivered through the three-way valve and a connecting line (16) to the delivery circuit (14) of the second pump, is located in the delivery circuit of one of the pumps. In so doing, when a greater amount of pressure medium is required in the second delivery circuit than its pump can deliver, pressure medium can be supplied from the other working circuit through the flow regulating valve (15). That contributes to an energy saving due to a correspondingly smaller design for the second pump (11). <IMAGE></p> |
