Electrical generator or motor structure – Dynamoelectric – Rotary
Patent
1987-03-19
1988-10-04
Skudy, R.
Electrical generator or motor structure
Dynamoelectric
Rotary
310 42, 310156, 310185, H02K 112
Patent
active
047758139
ABSTRACT:
An electric motor comprises a rotor (20), an annular stator coils (44A, 44B), and a stator body having a central stator portion (24A, 24B) which is disposed coaxially around the rotor shaft (18) and a number of stator teeth. The stator teeth each have a proximal portion (28) secured to the central stator portion and a distal portion (30) having an axial pole face (30A) adapted to cooperate with an axially magnetized ring (20A) of the rotor. Half of the stator teeth also comprise an axial tooth portion (42) which extends between the proximal portion and the distal portion of the relevant stator tooth, because the proximal portions and the distal portions of these teeth are disposed in different axially spaced radial planes. The stator coils are disposed in the space between the central stator portion and all the axial tooth portions.
REFERENCES:
patent: 2897387 (1959-07-01), Welter
patent: 3310696 (1967-03-01), Jullien-David
patent: 3459982 (1969-08-01), Cartier
patent: 3845335 (1974-10-01), Oguey
patent: 4361776 (1982-11-01), Hayashi
patent: 4459501 (1984-07-01), Fawzy
patent: 4565938 (1986-01-01), Fawzy
patent: 4626727 (1986-12-01), Janson
patent: 4701656 (1987-10-01), Fawzy
Faller F. Brice
Skudy R.
U.S. Philips Corporation
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