| 摘要 |
A hydraulic power steering system for a motor vehicle with a rotary slide valve and a reaction piston which can be pressurized with hydraulic medium optionally on one of its two faces, where the reaction piston transfers, depending on the pressurization, a moment to the rotary slide, the moment changing the driver's manual moment at the steering handle such that a moment superimposed on the manual moment can also be generated, the superimposed moment leading to an increase or decrease of the manual moment or to a reversal of the direction of the manual moment. For the hydraulic pressurization of the reaction piston, a conveyance device driven by an electric motor is provided. Preferably, the conveyance device with the electric motor is mounted on the rotary slide valve and draws hydraulic medium from a tank recycling line.
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