Patent ID: 8356545

Claim:
A load-signaling (LS) control system for supplying pressure medium to a hydraulic consumer that includes a continually adjustable directional control valve ( 16 ) that forms metering orifices situated in the inlet and/or outlet of the pressure medium, at least one pressure compensator ( 18 ) being assigned to at least one metering orifice, the pressure compensator ( 18 ) being acted upon by a control pressure to increase the cross section of the opening, the control pressure being tapped via an LS channel ( 50 ) by a load-signaling chamber ( 52 ) of the directional control valve ( 16 ), which is connected via a signaling channel ( 86 ) to a pressure chamber that is connected to one of the directional control valve connections (P, A, B), and which is connectable via a throttle cross section ( 98 ) to a pressure medium recess (T), it being possible to change the throttle cross section ( 98 ) as a function of the displacement of a valve spool ( 54 ) of the directional control valve ( 16 ), wherein the signaling channel ( 86 ) is connectable in one displacement direction to an inlet chamber ( 28 ), which is connected to a pressure connection (P), and, in the other displacement direction, to a working chamber ( 36 ), which is connected to a working connection (B), and wherein the outlet-side control fluid path includes an axial bore ( 94 ) and two radial bores ( 96 , 97 ) in the valve spool ( 54 ), one of which may be opened toward a tank chamber ( 38 ), and the other of which may be opened toward the load-signaling chamber ( 52 ).