Electrical generator or motor structure – Dynamoelectric – Rotary
Patent
1989-01-18
1990-02-13
Skudy, R.
Electrical generator or motor structure
Dynamoelectric
Rotary
104281, 104284, 32420724, F16C 3906
Patent
active
049009621
ABSTRACT:
A magnetic bearing system for enabling translational motion includes a carriage and a shaft for movably supporting the carriage; a first magnetic bearing fixed to one of the carriage and shaft and slidably received in a first channel of the other of the carriage and shaft. The first channel is generally "U" shaped with two side walls and a back wall. The magnetic bearing includes a pair of spaced magnetic pole pieces, each pole piece having a pair of electromagnetic coils mounted on poles on opposite ends of the pole piece proximate the side walls, and a third electromagnetic coil mounted on a pole of the pole piece proximate the backwall; a motion sensor for sensing translational motion along two axes and rotationally about three axes of the carriage and shaft relative to each other; and a correction circuit responsive to the sensor for generating a correction signal to drive the coils to compensate for any misalignment sensed between the carriage and the shaft.
REFERENCES:
patent: 3804022 (1974-04-01), Schwarzler
patent: 3851594 (1974-12-01), Schwarzer
patent: 3882790 (1975-05-01), Winkle
patent: 3924538 (1975-12-01), Breitling
patent: 3937148 (1976-02-01), Simpson
patent: 4244629 (1981-01-01), Habermann
patent: 4408313 (1980-12-01), Musha
patent: 4473259 (1984-09-01), Goldowsky
patent: 4817533 (1989-04-01), Azukizawa
Downer James R.
Eisenhaure David B.
Hawkey Timothy J.
Hockney Richard L.
Johnson Bruce G.
Iandiorio Joseph S.
SatCon Technology Corporation
Skudy R.
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