Electrical generator or motor structure – Dynamoelectric – Rotary
Patent
1987-07-08
1989-06-27
Salce, Patrick R.
Electrical generator or motor structure
Dynamoelectric
Rotary
310164, 310206, 310254, 310261, 318138, H02K 108, H02K 318, H02K 2100
Patent
active
048432709
ABSTRACT:
An electrical machine comprises a rotor (2) and a stator (5) as machine parts, means for generating an excitation flux, and active coils (W1-W5). In operation the coils link at least a portion of the excitation flux and generate a rotational e.m.f. The rotor and the stator comprise poles, the number of stator poles (N1-N6, S1-S6) differing from the number of rotor poles (T1.sup.x -T5.sup.x). During operation, the flux pattern of the portion of the excitation flux linking with the active coils rotates relative to the machine part carrying the active coils with such an angular velocity that the absolute value of the difference between said angular velocity and the angular velocity of the machine part comprising the active coils is larger than the absolute value of the difference in angular velocity between the rotor and the stator. For this purpose the pole faces (RS) of the rotor poles, viewed in the circumferential direction of the rotor, have a different width than the pole faces (PS) of the stator poles. Moreover, the active coils are arranged diametrally in the form of a cylindrical winding or in the form of an annular winding.
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K. C. Mukherji et al., "Vernier Reluctance Motor", PIEE vol. 121, No. 9 (Sep. 1974), pp. 965-971.
Faller F. Brice
Rebsch D. L.
Salce Patrick R.
U.S. Philips Corporation
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