Patent ID: 7540231

Claim:
A control valve device for the control of a dual-action consumer, comprising: a control valve that controls a connection of a pressure fluid line that forms an admission side of a consumer with a pump and controls a connection of an additional pressure fluid line that forms a return side of the consumer with a reservoir; a regeneration function by means of which the return side of the consumer can be connected with the admission side of the consumer, wherein the regeneration function comprises a short circuit device located between the consumer and the control valve and provides a connection of the additional pressure fluid line that forms the return side of the consumer with the pressure fluid line that forms the admission side of the consumer; and a shutoff valve device located between the consumer and the control valve to block the connection of the additional pressure fluid line that forms the return side of the consumer with the reservoir, the shutoff valve device comprising a shutoff control valve with a shutoff position and an open position, wherein in response to a first control signal of the control valve that actuates the control valve toward a position that connects the pressure fluid line with the pump and connects the additional pressure line with the reservoir, the shutoff valve device is actuated into the shutoff position and can be actuated toward the open position as a function of an admission pressure present at the pressure fluid line that forms the admission side of the consumer, and wherein the short circuit device comprises a short circuit valve located in a connecting line that connects the additional pressure fluid line with the pressure fluid line and has a shutoff position and an open position and, for the regeneration function, can be actuated toward the open position as a function of the first control signal of the control valve.