Abstract: A hydraulic pressure amplifier arrangement (1) comprising a supply port (IN), a return port (R), a high pressure port (H1), and a pressure amplifier unit (2) having a low pressure inlet (3) connected to the supply port (IN) and a high pressure outlet (4) connected to the high pressure port (H1) is described, wherein the pressure amplifier unit (2) comprises an amplification factor. In such a hydraulic pressure amplifier arrangement it should be possible to allow simply releasing off pressure at the high pressure port while keeping small unnecessary energy consumption. To this end a control valve (8) is arranged in a connection between the high pressure port (H1) and the return port (R).

Abstract: A hydraulic pressure amplifier arrangement (1) comprising a supply port (IN), a return port (R), a high pressure port (H1), and a pressure amplifier unit (2) having a low pressure inlet (3) connected to the supply port (IN) and a high pressure outlet (4) connected to the high pressure port (H1) is described, wherein the pressure amplifier unit (2) comprises an amplification factor. In such a hydraulic pressure amplifier arrangement it should be possible to allow simply releasing off pressure at the high pressure port while keeping small unnecessary energy consumption. To this end a control valve (8) is arranged in a connection between the high pressure port (H1) and the return port (R).

Abstract: A hydraulic system (1) is provided comprising a pressure source (2), an output (3), and a pressure booster (6) arranged between the pressure source (2) and the output (3). The operational possibilities of such a system should be extended. To this end inactivating means are provided inactivating or activating said pressure booster.

Abstract: A hydraulic system (1) is provided comprising a supply port arrangement (P, T), a working port arrangement (A, B), and a booster section (7), said supply port arrangement having at least a supply port (P), said booster section (7) being arranged between said supply port arrangement (P, T) and said working port arrangement (A, B). The operational possibilities of such a hydraulic system should be extended. To this end said working port arrangement comprises at least two working ports (A, B), flow direction changing means (9) are provided changing a flow direction through said working port arrangement and inactivating means (16) are provided inactivating or activating said booster section (7) for each flow direction.

Abstract: A hydraulic system (1) is provided comprising a supply port arrangement (P, T), a working port arrangement (A, B), and a booster section (7), said supply port arrangement having at least a supply port (P), said booster section (7) being arranged between said supply port arrangement (P, T) and said working port arrangement (A, B). The operational possibilities of such a hydraulic system should be extended. To this end said working port arrangement comprises at least two working ports (A, B), flow direction changing means (9) are provided changing a flow direction through said working port arrangement and inactivating means (16) are provided inactivating or activating said booster section (7) for each flow direction.

Abstract: A hydraulic system (1) is provided comprising a pressure source (2), an output (3), and a pressure booster (6) arranged between the pressure source (2) and the output (3). The operational possibilities of such a system should be extended. To this end inactivating means are provided inactivating or activating said pressure booster.

Abstract: A fluid supply unit includes a hydraulic supply unit and a pressure generator for the fluid and a pressure outlet. A pressure booster is installed between the pressure generator and the pressure outlet and is rigidly mechanically connected with the pressure generator, wherein the pressure booster (6) is driven by a portion of the fluid generated by the pump.

Abstract: A hydraulic pressure amplifier with a housing which has an end face at a low pressure side and an end face at a high pressure side and a circumferential wall between the two end faces, wherein an outlet valve is arranged adjacent the end face on the high pressure side, and an outlet duct for the hydraulic liquid which is under high pressure. In a pressure amplifier of the above-described type, the outlet duct opens into the circumferential wall or extends through a connection plug which is screwed into the end face on the high pressure side and closes off an assembly duct which receives the outlet valve.

Abstract: A hydraulic pressure amplifier with a housing which has an end face at a low pressure side and an end face at a high pressure side and a circumferential wall between the two end faces, wherein an outlet valve is arranged adjacent the end face on the high pressure side, and an outlet duct for the hydraulic liquid which is under high pressure. In a pressure amplifier of the above-described type, the outlet duct opens into the circumferential wall or extends through a connection plug which is screwed into the end face on the high pressure side and closes off an assembly duct which receives the outlet valve.

Abstract: A hydraulic tool has a motor, a valve, a hydraulic intensifier, and a supply connector. The hydraulic intensifier is arranged between the valve and the motor. The valve and the motor are arranged behind one another in a longitudinal direction of the tool. The hydraulic intensifier has at least one intensifier piston having a movement direction that is positioned at a first angle greater than 0° relative to the longitudinal direction of the tool.

Abstract: A fluid supply unit (1), in particular a hydraulic supply unit is disclosed, comprising a pressure generator (2) for the fluid, in particular a pump or hydraulic fluids and a pressure outlet (7). The aim of the invention is to broaden the application possibilites of such a unit. Said aim is achieved, whereby a pressure amplifier (6) is arranged between the pressure generator (2) and the pressure outlet (7) which is mechanically fixed to the pressure generator (2).

Abstract: A hydraulic tool has a motor, a valve, a hydraulic intensifier and a supply connector. The hydraulic intensifier is arranged between the valve and the motor. The valve and the motor are arranged behind one another in a longitudinal direction of the tool. The hydraulic intensifier has at least one intensifier piston having a movement direction that is positioned at a first angle greater than 0° relative to the longitudinal direction of the tool.

Abstract: A pressure intensifier for fluids has an intensifier piston with a high-pressure piston and a low-pressure piston having a greater diameter than the high-pressure piston. The pistons are moveable in a high-pressure cylinder and a low-pressure cylinder, respectively, and move together. The high-pressure cylinder is connected to a high-pressure connection. A first control line is connected to a supply connector. A second control line is connected to a control valve having first and second switching positions. A first connection connects the control lines. The low-pressure cylinder is connected via the control valve in the first switching position to a supply connector and in the second switching position to a return connector. The switching positions are controlled by the intensifier piston. The intensifier piston opens or closes the first connection between the control lines. The first connection is arranged completely within a movement stroke of the high-pressure piston.