Electrical generator or motor structure – Dynamoelectric – Rotary
Patent
1980-05-09
1983-03-15
Duggan, Donovan F.
Electrical generator or motor structure
Dynamoelectric
Rotary
310266, 310265, H02K 2128
Patent
active
043769039
ABSTRACT:
A direct current dynamo electric machine comprising a non-magnetic cylindrical rotor wherein a small-diameter sleeve-like insulating cylinder is secured to a rotor shaft, a winding is disposed around the outer periphery of said insulating cylinder and most of the volume of the rotor is occupied by the winding, a mechanism for rotatably supporting the rotor, and a stator having permanent magnets for equalizing the leakage flux of the field of permanent magnets by means of a reverse magnetic field, a large magnetic field being applied to the non-magnetic cylindrical rotor.
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IBM Tech. Disclosure Bulletin, vol. 10, No. 8, 1/68, p. 1233, Fisher et al.
Duggan Donovan F.
Micro Technology Laboratory Co., Ltd.
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