FIELD: electricity.
SUBSTANCE: proposed electric machine comprises stator pack and rotor in single vessel, which has inner cooling circuit made of rotor cooling channels passing through rotor in axial direction and arranged on two concentric circles, and this circuit is designed to circulate gaseous cooling substance, at the same time in machine on the first end side of rotor there are fan blades provided, as well as the first facility for direction of cooling substance from channels of rotor cooling on one of both concentric circles through front part of winding to channels of rotor cooling on another of both concentric circles, therefore, optimal cooling is provided for zones, in which losses heat removal is difficult.
EFFECT: improved cooling action of electric machine without using fan impeller separately installed on rotor.
35 cl, 2 dwg
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