MOTOR-FAN UNIT Russian patent published in 2007 - IPC H02K7/14 H02K9/06 

FIELD: electrical engineering.

SUBSTANCE: proposed motor-fan unit that can be used, for instance, in mining mechanical engineering is built around squirrel-cage induction motor and has frame with stator and rotor mounted therein. Novelty is that rotor carries fan blades, stator and rotor have conical surfaces, angles at vortices of stator and rotor cones are greatly different with respect to their contact between mentioned conical surfaces in absence of their wedging to afford antifriction bearing function, and stator mounts cleat preventing rotor-to-stator shift , for instance in axial direction.

EFFECT: simplified design at enhanced operating reliability of motor-fan unit.

1 cl, 2 dwg