Electrical generator or motor structure – Dynamoelectric – Rotary
Patent
1978-03-09
1980-04-01
Duggan, Donovan F.
Electrical generator or motor structure
Dynamoelectric
Rotary
310163, 310114, H02K 1905
Patent
active
041963660
ABSTRACT:
An electric synchronous motor comprising a rotor with a cage winding consisting of a solid shaft and rotor laminar packets holding the cage rods, sequential poles being located in axially spaced planes, a stator with a field winding and a direct-current energizing winding located between said planes on the rotor having as characterizing feature that the lamination packets form closed rings and the shaft of the rotor has local recesses to form holes. In this way a higher starting torque can be developed than in a motor of the same size, since the cage rods are embedded in iron also in the interpolar space.
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Duggan Donovan F.
Heemaf B.V.
Snyder John P.
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