BUTT INDUCTOR ELECTRIC MACHINE OF SINGLE-PHASE CURRENT Russian patent published in 1994 - IPC

FIELD: fine mechanical instruments. SUBSTANCE: butt inductor electric machine of single phase current has toothed disc rotor and salient-pole stator with two disc magnetic cores between which ring permanent magnet axially magnetized is placed and with ring winding installed coaxially to permanent magnet. Poles of stator and rotor are fabricated in the form of two groups of teeth distributed concentrically and evenly over circumference. Areas of slots in groups are made identical, slots of outer group are displaced with respect to slots of inner group by quarter of tooth division. Poles of stator are fabricated on one of discs adjacent to magnet. Additional fixing slots which number is twice as many as number of slots in each of mentioned groups and which width is equal to that of additional slots in teeth of rotor are manufactured on the other disc of stator, in cylinder surface facing teeth of disc of rotor. EFFECT: increased operational accuracy. 8 cl, 6 dwg