High-speed, low-loss antifriction bearing assembly

Details High-speed, low-loss antifriction bearing assembly High-speed, low-loss antifriction bearing assembly

1992-01-14

1993-01-12

Voeltz, Emanuel T.

Electrical generator or motor structure

Dynamoelectric

Rotary

H02K 709

Patent

active

051793083

ABSTRACT:
Antifriction bearings include circumferential as well as axial flux paths that the flux of four identical-polarity magnetic poles follows about an annular stator having annular end-pieces that enables a square law reduction in rotor eddy current effects over the heretofore known magnetic bearings. In one embodiment, control coils alone provide magnetic suspension along orthogonal X, Y axes, and in another embodiment, combination control and bias coils cooperate to provide magnetic suspension along the orthogonal X, Y axes. The stator and rotor are preferably constituted, in part, of a lamination of high magnetic permeability material.

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