SINGLE-PHASE SALIENT-POLE ELECTRIC MOTOR Russian patent published in 1998 - IPC

FIELD: electrical engineering. SUBSTANCE: A.C. electric motors of small capacity ( asynchronous and synchronous ) designed for supply from single-phase network. Proposed electric motor has stator with concentrated winding in the form of coils put on salient poles having pole pieces. Magnetic circuit of stator is divided in axial direction into individual packages. Axial lines of pole pieces of different packages are turned through different angles with reference to axis of poles. Each package which axis of pole pieces is turned through certain angle in one direction corresponds to package of same axial length with turn of axis of pole pieces through same angle in reverse direction. In case of availability of middle package axes of its poles and pole pieces coincide. EFFECT: improved starting and working characteristics. 3 dwg