GEARED SYNCHRONOUS MOTOR Russian patent published in 1995 - IPC

FIELD: slow-speed electromagnetic-gear synchronous motors. SUBSTANCE: geared synchronous motor has toothed stator carrying three-phase star-connected winding and salient poles whose quantity is a multiple of double product of pole number and number of winding phase leads; it also has toothed nonwound rotor; stator tooth pitch is equal to rotor tooth pitch; tooth strips of stator poles for second and third phases are displaced in respect to center lines of their poles through one third of tooth pitch in relatively opposite directions; each phase of winding is built up of two parallel circuits wherein winding field coils and diodes are inserted and connected in opposition in adjacent parallel circuits of same phase; stator poles carry additional short-circuited wave winding. Coil pitch of each power winding is equal to half the winding pole pitch; each pole of each phase is formed by two adjacent coils coil pair of each pole of same polarity in each phase is equally connected to adjacent parallel circuits in series and in opposition to diametrically opposite field coils of opposite polarity. EFFECT: improved design. 3 dwg