| 摘要 |
The invention relates to a device for providing a pressure for a hydraulic consumer (2), wherein the device (1) has a tank (4) for providing hydraulic fluid. A hydropump (3) is fed from the tank (4), and is equipped for providing a pressure (p0) at the outlet (5) thereof. An electric motor (6) is provided for actuating the hydropump, and a pressure transmitter (9) serves for displaying the pressure (p0) put out by the hydropump (3). A frequency converter is provided for receiving the signal displayed by the pressure transmitter (9), wherein the frequency converter (8) is equipped for regulating the pressure (p0) provided by the hydropump (3) by means of actuating the rotational speed of the electric motor (6). The frequency converter (8) actuates the electric motor (6) without any sensors by means of a vector regulator. |
