Moment imparting bearings for controlling shaft deflection

Details Moment imparting bearings for controlling shaft deflection Moment imparting bearings for controlling shaft deflection

1993-07-06

1995-10-03

Dougherty, Thomas M.

Electrical generator or motor structure

Dynamoelectric

Rotary

318127, 32420712, H02K 709

Patent

active

054554721

ABSTRACT:
A magnetic bearing assembly is disclosed which provides for correction of shaft deflection, or "bowing", during rotation of the shaft. The assembly comprises two stator rings in spaced relation to each other, and each stator ring comprises a plurality of stator sections which are independently activated. When the shaft "bows", sensors detect the deflection and independently activate the various stator sections producing a force couple which acts on the rotor to produce a bending moment in the shaft which tends to counteract the "bowing".

REFERENCES:
patent: 3845997 (1974-11-01), Boden et al.
patent: 3877761 (1975-04-01), Boden et al.
patent: 4866318 (1989-09-01), Habermann et al.
patent: 4920290 (1990-04-01), Murakami et al.
patent: 4999534 (1991-03-01), Andrianos
patent: 5084643 (1992-01-01), Chen
patent: 5216308 (1993-06-01), Meeks
patent: 5247219 (1993-09-01), Nakagawa et al.
patent: 5313399 (1994-05-01), Beale

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