Electrical generator or motor structure – Dynamoelectric – Rotary
Patent
1982-10-21
1984-09-11
Duggan, Donovan F.
Electrical generator or motor structure
Dynamoelectric
Rotary
310 43, 310 90, 310157, H02K 700
Patent
active
044712502
ABSTRACT:
A dynamoelectric machine (e.g., an induction motor for an overhead ceiling fan or the like) is disclosed having a stator assembly and a rotor assembly with the stator assembly comprising a bearing support or end shield, a core mounted within the bearing support with the core having a bore therethrough for rotatably receiving the rotor body of the rotor assembly. The end shield has a central shaft stationarily mounted relative thereto and a pair of bearings, preferably ball or roller bearings, is provided for journalling the rotor body on the stationary shaft. More specifically, the rotor assembly includes a hub having a generally cylindrical body on which the rotor body is secured by means of an interference or shrink fit with the hub body having a longitudinal central opening therethrough receiving the stationary shaft and further having a mounting flange on its outer end.
REFERENCES:
patent: 2522941 (1950-09-01), Gillen
patent: 3458740 (1969-09-01), Kaneko et al.
patent: 4357550 (1982-11-01), M/u/ ller
Duggan Donovan F.
Emerson Electric Co.
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