Device for cooling components by means of hydraulic fluid from a hydraulic circuit

A device to cool at least one component by hydraulic fluid, comprising:

• a hydraulic circuit comprising a hydraulic pump, at least one user of hydraulic energy connected to the hydraulic pump, and a reservoir;
• and
• a heat exchanger, wherein the component is connected into the hydraulic circuit between the heat exchanger and an intake side of the pump,
• wherein the component is connected into a return line that empties into the reservoir,
• wherein upstream of the component there is a control valve,
• wherein connected to the output side of the control valve there is a bypass return line which is connected in parallel to the return line and empties into the reservoir, and
• wherein in a first switched position of the control valve the return line is closed and the bypass return line is open and in a second switched position of the control valve the return line is at least partly open and the bypass return line is closed or at least partly closed.

A device to cool at least one component by hydraulic fluid, comprising:

• a hydraulic circuit comprising a hydraulic pump, at least one user of hydraulic energy connected to the hydraulic pump, and a reservoir;
• at least one heat exchanger, wherein the component is connected into the hydraulic circuit between the heat exchanger and an intake side of the pump,
• wherein the component is connected to at least one of a suction line that connects the reservoir with the pump or a return line that empties into the reservoir;
• and
• at least one control valve, wherein the control valve is connected on an output side to at least one of a bypass suction line connected with the reservoir or a bypass return line connected to the return line and emptying into the reservoir,
• wherein in a first switched position of the control valve, at least one of the suction line and the return line is closed and at least one of the bypass suction line and the bypass return line is open, and
• wherein in a second switched position of the control valve, at least one of the suction line and the return line is at least partly open.