ELECTRICAL MACHINE Russian patent published in 2003 - IPC

FIELD: electromechanical engineering; electrical machines with permanent-magnet rotor. SUBSTANCE: electrical machine rotor has magnetic core mounting permanent magnets with pole shoes. Holding members are placed in gaps between pole shoes. Annular grooves provided on outer surfaces of pole shoes accommodate nonmagnetic binding made in the form of rings. Rigid coupling of holding members to magnetic core and binding enables transfer of thrusts built up when rotor is running to magnetic core. EFFECT: enhanced reliability at high rotor speed; enhanced speed control range; reduced mass and size. 6 cl, 2 dwg