Electrical generator or motor structure – Dynamoelectric – Rotary
Patent
1986-04-03
1987-03-17
Budd, Mark O.
Electrical generator or motor structure
Dynamoelectric
Rotary
310156, 310268, 310 66, 25112902, 261DIG74, H02K 100, F16K 3102
Patent
active
046510419
ABSTRACT:
An electric motor for controlling the tilt of a throttle valve is disclosed. A rotatable field magnet having at least two pairs of N and S poles is mounted on a rotary shaft carrying the throttle valve for rotation relative to a disk-shaped stator yoke having at least one armature coil formed therearound. The coil includes a first toroidal windings of conductor effective for the development of torque wound in one direction and a second toroidal windings of conductor similarly effective for the development of torque wound in the other direction and disposed away from said first toroidal windings of conductor circumferentially of the stator yoke at an angular interval which is equal to about 2n-1 times the pole-to-pole interval of said magnet, said first and second windings being electrically connected to each other. The first and second windings of conductor are phase shifted in spaced-apart relation to each other. Further, a spring is provided which act to urge the rotatable shaft in the direction which will cause the throttle valve to tilt to its "closed" position.
REFERENCES:
patent: 4093897 (1978-06-01), Fujita et al.
patent: 4283644 (1981-08-01), Kondo et al.
patent: 4315177 (1982-02-01), Ban et al.
patent: 4321496 (1982-03-01), Hickey
patent: 4394594 (1983-07-01), Schmider et al.
patent: 4437029 (1984-03-01), Ban et al.
patent: 4601271 (1986-07-01), Ejiri et al.
Amano Hiroyuki
Nishimura Tomoaki
Shimizu Katsumasa
Shiraki Manabu
Aisin Seiki Kabushiki Kaisha
Budd Mark O.
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