摘要 |
A hydraulic control arrangement (10) with a first working circuit (11) of load-pressure-sensing directional control valves (31, 32) and a second control circuit (12) is proposed in which the distribution of the flows from a pump (13) to the two working circuits (11, 12) is controlled by a choke valve (15) working as a pressure balance. The choke valve (15) lies in a connection from the pump connection (16) to the run-on connection (21), to which the second working circuit (12) is attached in tandem, the flow resistance of which keeps the choke valve (15) open in the neutral position of the control circuits (11, 12). A priority working circuit (11) having load-pressure-sensing directional control valves (31, 32) in a type of construction for closed circulation can be combined with a secondary working circuit (12) in such a way that energy losses are kept low and versatile adaptations are possible. <IMAGE>
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