Magnetic speed reduction device

Details Magnetic speed reduction device Magnetic speed reduction device

1986-07-02

1987-08-04

Wong, Peter S.

Electrical generator or motor structure

Dynamoelectric

Rotary

74DIG4, 310156, F16H 520, H02K 7116

Patent

active

046848363

ABSTRACT:
A magnetic speed device includes a rotatable driving shaft and a driven shaft also rotatable about an axis. A stationary pole includes a plurality of pole elements, each having at least one stationary pole surface. The pole elements are circumferentially arranged around the axis. A rotor is operatively coupled to the driven shaft for rotation with the driven shaft about the axis. The rotor includes a plurality of circumferentially arranged rotor pole surfaces. The number of rotor pole surfaces is different from the number of stationary pole surfaces. The rotor pole surfaces are disposed in a spaced, generally opposed relation to the stationary pole surfaces, and define a series of air gaps therebeween. A magnet is mounted for rotation with the driving shaft for supplying a magnetic flux to a flux path which includes successive, adjacent pairs of pole elements, the rotor, and the air gaps. Rotation of the driving shaft produces rotation of the driven shaft at a speed which is less than that of the driving shaft.

REFERENCES:
patent: 3382386 (1968-05-01), Schlaeppl
patent: 3696260 (1972-10-01), Lace
patent: 4315171 (1982-02-01), Schaeffer
patent: 4459501 (1984-07-01), Fawzy

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