Electrical generator or motor structure – Dynamoelectric – Rotary
Patent
1987-12-08
1989-09-12
Skudy, R.
Electrical generator or motor structure
Dynamoelectric
Rotary
324207, F16C 3906
Patent
active
048663182
ABSTRACT:
Active radial magnetic bearing with solid rotor comprising a stator composed of an armature and electromagnetic coils, a rotor fast with a rotary shaft and placed opposite the stator, detectors for detecting the radial position of the rotor with respect to the stator, and servo-control circuits for adjusting the current going through the electromagnetic coils according to the value of the signals delivered by said position detectors.
The electromagnetic coils are so designed as to create a rotating sinusoidal magnetic field with radial flux, the electromagnetic coils comprising a plurality of windings distributed over the periphery of the stator and supplied in succession one after another from the servo-control circuits.
This type of bearing helps going through critical frequencies.
REFERENCES:
patent: 3068374 (1962-12-01), Bekey
patent: 3702208 (1972-11-01), Habermann
patent: 3860300 (1975-01-01), Lyman
patent: 4128795 (1978-12-01), Habermann
patent: 4245869 (1981-01-01), Scheffer
patent: 4312628 (1982-01-01), Yamamura
"Physics"; Hausman & Slack; 1939; publ. D. Van Nostrand; New York, N.Y., pp. 484, 485.
Brunet Maurice
Gerbier Alain
Habermann Helmut
Skudy R.
Societe Anonyme styled: Societe Europeenne de Propulsion
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