Hydraulic control arrangement
AssigneeBosch Rexroth AG
InventorWolfgang Kauss
Life of this patent
Estimating the term…
Loading patent…
AssigneeBosch Rexroth AG
InventorWolfgang Kauss
Estimating the term…
A hydraulic control arrangement is disclosed for the control of a consumer, comprising at least one mechanically operated continuously adjustable distribution valve with a subsequent LUDV pressure compensator down the line. In order to lock the consumer the control arrangement is provided with a spring holding the pressure compensator piston in a closed position. Furthermore, the LS line carrying the highest load pressure of all consumers is connected to a reservoir by means of a flow regulator, wherein the pump control may also be relieved by the flow regulator in the sense of a reduction of the pumped volume. According to the invention, the LUDV pressure compensator is pressure-compensated by means of a nozzle through which a connection between the LS line and a portion of the pressure medium flow path downstream of the pump and upstream of the outlet of the pressure compensator is generated. Said nozzle is preferably integrated in the pressure compensator piston.
A hydraulic control arrangement for the control of a consumer, comprising at least one mechanically operated continuously adjustable distribution valve with a subsequent pressure compensator down the line to which a load pressure of the corresponding consumer is applied in an opening direction and a highest load pressure of all controlled consumers is applied in the closing direction to a rear control chamber, wherein said highest load pressure is carried via an LS line to a pump regulator of a pump, wherein upon operation of a safety valve, the pressure compensator is brought into a closing position for closing the connection to the consumer, wherein a pressure compensator piston is moved toward its closed position by a spring, the LS line is connected to the reservoir by means of a flow control valve, the safety valve is arranged in the LS line between the pump regulator and the pressure compensator;
Dependencies are inferred from the claim text.