MAGNETOELECTRIC MACHINE ROTOR SYSTEM Russian patent published in 2013 - IPC H02K16/02 H02K1/27 H02K21/12 H02K1/28 

FIELD: electrical engineering.

SUBSTANCE: magnetoelectric machine rotor system consists of two coaxial rotors. The external (outer) rotor is designed in the shape of a hollow cylinder of high-strength, non-magnetic and electrically non-conductive material with constant magnets uniformly fixed thereon; the magnets are magnetised in a radial direction and have alternating polarity. There are gaps between the external rotor magnets wherein the retaining elements are positioned made of a non-magnetic and electrically non-conductive material. The internal rotor is designed in the shape of a shaft of a magnetically soft material, toothed on the outside, the internal rotor teeth number equal to that of the external rotor permanent magnets. The internal rotor radial bearings are positioned outside the external rotor bearings. The external rotor axial bearing is represented by axial magnetic forces of interaction between the permanent magnets of the external rotor, the stator core and the shaft.

EFFECT: provision for the rotor system rotors strength margin and increasing the proper frequency to a value in excess of rotation rate.

16 cl, 3 dwg