REACTION STEPPING ELECTRIC MOTOR Russian patent published in 2003 - IPC

FIELD: electrical engineering. SUBSTANCE: specified feature of invention lies in placement of U-shaped magnetic core 3 carrying control winding 4 and pairs of identical poles 5 on ends between butts of parts 1 and 2 of nonmagnetic frame of electric motor. Rotor 8 has four identical teeth 9 and 10 arranged in pairs. Permanent magnets fixing rotor are installed in frame. Some magnets are placed in opposition to butts of teeth of rotor with lesser angular extent and some magnets are located opposite to butts of teeth with greater angular extent. EFFECT: simplification and reduced cost of manufacture of electric motor with simultaneous decrease of dimensions and unification of motors. 9 cl, 6 dwg