COMBINED COOLING SYSTEM OF CLOSED INDUCTOR MACHINE Russian patent published in 2019 - IPC H02K9/19 H02K9/06 H02K5/20 

FIELD: machine building.

SUBSTANCE: invention relates to the field of electric machine engineering, namely to cooling systems of inducer machines of closed design. Cooling system of inductor machine having stator packs with operating winding and rotor packages installed on magnetically conducting bushing with excitation winding arranged between them, comprises in the stator housing channels of forced liquid cooling system and centrifugal fan located inside the machine and belonging to closed system of forced air cooling. There are annular cavities of cooling of bearing shields made on their outer side concentrically to the shaft with protruding turbulators and located on both sides of rotor fans, each of which is made in the form of ventilating disc. There are radial channels and peripheral annular channel joining them to rotor surface of disc. Annular vent plate has outer diameter smaller than rotor diameter, overlaps the disk surface facing the rotor and has holes made therein, the number of which is equal to or multiple to the number of teeth of the rotor.

EFFECT: technical result is increased reliability and service life of inductor machines, improved weight and dimension parameters.

1 cl, 4 dwg