Patent ID: 8461735

Claim:
A body of revolution having a rotator, an electric motor containing a stator and a rotor wherein said latter is fixed to the rotator for rotational movement therewith, a support to which the stator of the electric motor is attached, and a bearing unit for the rotator to be arranged in for rotational movement around an axis of rotation, wherein the bearing unit ( 18 ) comprises at least one bearing ( 19 ) and wherein a stabilizer unit (E) adapted for electric activation acts on the rotor ( 7 ) in such a way that disturbing forces and/or disturbing vibrations of the rotator ( 2 ) are counteracted and/or reduced and/or relatively compensated in part, wherein a rotational element ( 8 ) connected to the rotator ( 2 ) and the rotor ( 7 ) and extending inside the electric motor ( 4 ) is flexibly arranged by means of an elastic element ( 20 ) or of elastic design itself, wherein the windings ( 22 , 22 ′, 22 ″) of the magnetic control elements ( 21 ) and/or the windings ( 23 , 23 ′, 23 ″, 31 ) of the stator ( 10 , 30 ) are connected to a control/regulator unit ( 24 ), wherein said control/regulator unit ( 24 ) is in communication with a sensor unit ( 27 ) to detect disturbing influences, wherein dependent on at least one sensor signal (S) prevailing at its input side the regulator/control unit ( 24 ) transmits an interference compensating signal (A) to the windings ( 22 , 22 ′ 22 ″) of the magnetic control elements ( 21 ) such that compensating forces (F x , F y ) are imparted to the rotor ( 7 ) to reduce the disturbing forces (U) acting on the rotator ( 2 ), and wherein the stabilizer unit (E) comprises at least one magnetic control element which is adapted for electric activation in such a way that one hand a radial balancing force (F x ,F y ) compensating the disturbing forces and on the other hand a peripheral force to generate a motor torque driving the rotator ( 2 ) are generated.