Electric motor

Details Electric motor Electric motor

1984-04-17

1985-07-16

Duggan, Donovan F.

Electrical generator or motor structure

Dynamoelectric

Rotary

310 67R, 310157, H02K 516

Patent

active

045299013

ABSTRACT:
An electric motor comprising a lower housing, and an upper housing. The lower housing comprises a hollow stationary shaft, and a stator mounted on the shaft. The upper housing comprises, a tube rotatably mounted on the shaft and a rotor fixed on the tube and surrounding the stator for rotation about the shaft. A thrust bearing is interposed between the end of the tube and the lower housing. Longitudinally upper and lower spaced bearings are interposed between the tube and the hollow shaft. An oil holding element is interposed between the bearings. An oil sump means is provided in the lower housing associated with the lower bearing such that oil flowing out of the holding element collects in the oil sump.

REFERENCES:
patent: 2522941 (1950-09-01), Gillen
patent: 3513339 (1970-05-01), Harris et al.

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