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AssigneeDaimlerChrysler AG
InventorsJuergen Schnur, Silvia Tomaschko
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The invention relates to a method for changing the clamping conditions of a rotatable part, which is rotatably disposed in the shaft bearing, and in the case of which the axis of rotation of the rotatable part is arranged axially identically with the axis of rotation of the shaft bearing. For changing a sound effect emanating from the rotatable part, the axial and radial clamping conditions between the shaft bearing and a rotatable part rotatably held in the shaft bearing, particularly of a shaft, of the engine, are changed in a controllable manner. Likewise, the transmission function of the vibrations, particularly of vibrations generating sound waves, existing between the rotatable part and the shaft bearing or a component contacting the shaft bearing is changed.
Method for changing the clamping conditions of a rotatable part, which is rotatably disposed in the shaft bearing, and in the case of which the axis of rotation of the rotatable part is arranged axially identically with the axis of rotation of the shaft bearing, characterized
Rotatable part, which is rotatably disposed in a shaft bearing and whose axis of rotation is arranged axially identically with the axis of rotation or symmetry of the shaft bearing, and having an adjusting unit for compensating a play of the rotatable part, characterized in that the adjusting unit has a radial adjusting unit (1) and an axial adjusting unit (31), in that the radial adjusting unit (1) has a piezoelectrically active material, in that, by means of the radial adjusting unit (1), the effective radial dimension of the area of the rotatable part (2) to be held and/or the radial contact pressure onto the rotatable part (2) can be changed as a controllably reversible manner at least between two measurements, in that the axial adjusting unit (31) has a piezoelectrically active material, and in that, by means of the axial adjusting unit (31), the effective axial dimension in the area of the rotatable part (2) to be held and/or the axial contact pressure onto the rotatable part (2) can be changed in a controllably reversible manner at least between two measurements.
Dependencies are inferred from the claim text.