H - Electricity – 02 – K
Patent
H - Electricity
02
K
310/84
H02K 7/12 (2006.01) H02K 37/00 (2006.01) H02K 41/06 (2006.01)
Patent
CA 2007998
Abstract of the Description A trochoidal speed reduction mechanism forms an integral part of the stator and rotor of an electric motor so that a slow-speed high-torque output is produced without having any high speed rotating component in the motor. A rotor has an epitrochoidal contour with a predetermined number of lobes. Positioned around the rotor are two non-rotating orbiting stator-rings, phased 180 degrees apart, each provided with a number of rollers equal to the number of lobes on the rotor plus one. The rollers are rotatably mounted on the inner surface of the stator-ring and are in continuous contact with the epitrochoidal contour of the shaft rotor. The non- rotating orbital movement of the stator-rings is produced by magnetic forces from a series of stator windings arranged as magnetic poles around the stator-rings. This action causes the rotor to rotate at a speed equal to the orbiting speed of the stator-rings divided by the built-in speed reduction ratio. Because the two stator-rings are orbiting 180 degrees apart, the orbiting masses and the torque on the rotor are balanced. The current flow through the stator winding, the sequential timing, the direction of rotation and the speed are all controlled by conventional solid state circuitry. vl-903-a
Pierrat Michel A.
Riches Mckenzie & Herbert Llp
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