| 摘要 |
In an electromechanical brake pressure generator for a motor vehicle brake system comprising a force input element, which is connected to a brake pedal, a housing and a pressure piston displaceable in the housing, wherein the pressure piston with the housing encloses a pressure chamber for generating a hydraulic brake pressure, and a threaded spindle/threaded nut arrangement, of which one component for displacing the pressure piston is guided linearly relative to the housing by means of an anti-rotation device and of which the other component is settable in rotation in the housing, wherein the pressure piston is displaceable in accordance with a displacement of the force input element by virtue of the setting in rotation of the component of the threaded spindle/threaded nut arrangement that is settable in rotation in order to generate a hydraulic brake pressure in the pressure chamber, in order to improve the anti-rotation device it is provided that a region of the linearly guided component of the threaded spindle/threaded nut arrangement is provided with a cylindrical guide profile, which interacts with a complementary profile that is fixed relative to the housing, wherein the area of the guide profile has such a shape that the linearly guided component of the threaded spindle/threaded nut arrangement is supported against the complementary profile during a transmission of supporting forces that is uniformly distributed over the periphery of the cylindrical guide profile.
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