摘要 |
A control device for two loads has a flow component valve (3) which is connected to an adjustment pump (2). From the flow component valve (3), a so-called pilot flow line (4) leads to a steering valve (6) of a steering device (first actuator device 7). A flow path (21) for the working flow of the steering device is connected downstream of a control edge (18) to an annular groove (31) of the flow component valve (3). A further flow path (5) leads from an annular groove (32), located behind a further control edge (28), to an actuation valve (10) of a reciprocating hydraulic system (second actuator device 11). The control edge (18) through which the working current for the steering device flows serves, a) to control a pilot flow in the pilot flow line (4) and simultaneously b) to produce a differential pressure (stand-by pressure) for adjusting the displacement of the variable displacement pump (2). The signal relating to the operating state of the steering device is tapped off in an annular groove (31) and fed via a control line (34) to the adjustment element of the pump (2). <IMAGE>
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