Electrical generator or motor structure – Dynamoelectric – Rotary
Patent
1990-12-20
1992-10-20
Stephan, Steven L.
Electrical generator or motor structure
Dynamoelectric
Rotary
310181, 318592, H02K 79, G05B 1302
Patent
active
051572966
ABSTRACT:
A magnetic bearing is provided which may be utilized in a fine position control or movement system. Stability is enhanced by providing separate mechanisms for supporting the weight of a platen or other object being controlled with electromagnets utilized to control or compensate for motion of the platen in N degrees of freedom. The support mechanism is preferably one or more permanent magnets having an air gap with the platen which is greater than the air gap for the electromagnets. The mechanisms for supporting the weight of the platen may be made adjustable so as to support the weight of the platen regardless of any changes in such weight by, for example, adjusting the air gap for the permanent magnet to compensate for weight changes. Resonant vibration is reduced by constructing the platen of a hollowed, cellular structure, for example, a honeycomb structure.
REFERENCES:
patent: 3771033 (1973-11-01), Matsui
patent: 3829746 (1974-08-01), Van et al.
patent: 3937148 (1976-02-01), Simpson
patent: 4055123 (1977-10-01), Heidelberg
patent: 4087729 (1978-05-01), Yamazaki et al.
patent: 4300807 (1981-12-01), Poubeau
patent: 4509002 (1985-04-01), Hollis, Jr.
patent: 4628238 (1986-12-01), Smulders et al.
patent: 4634191 (1987-01-01), Studer
patent: 4644205 (1987-02-01), Sudo et al.
patent: 4689529 (1987-08-01), Higuichi
patent: 4698575 (1987-10-01), Bouwer
patent: 4754185 (1988-06-01), Gabriel et al.
patent: 4766358 (1988-08-01), Higuchi
patent: 4788477 (1988-11-01), Teramachi
patent: 4874998 (1989-10-01), Hollis, Jr.
patent: 4885490 (1989-12-01), Takahara
patent: 4900962 (1990-02-01), Hockney et al.
M. Morishita, "A New MAGLEV System for Magnetically Levitated Carrier System", May 14 to 16, 1986, pp. 199-204.
F. Matsumuar, "Completely Contactless Linear DC Motor Using Magnetic Suspension", 1987, pp. 95-103.
Slocum, "Design Considerations for Ultra-Precision Magnetic Bearing Supported Slides", Feb. 2-4, 1988, pp. 1-29.
Haszko D. R.
Massachusetts Institute of Technology
Stephan Steven L.
LandOfFree
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