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Cryogenic Hybrid Magnetic BearingCryogenic hybrid magnetic bearing is example of class of magnetic bearings in which permanent magnets and electromagnets used to suspend shafts. Electromagnets provide active control of position of shaft. Bearing operates at temperatures from -320 degrees F (-196 degrees C) to 650 degrees F (343 degrees C); designed for possible use in rocket-engine turbopumps, where effects of cryogenic environment and fluid severely limit lubrication of conventional ball bearings. This and similar bearings also suitable for terrestrial rotating machinery; for example, gas-turbine engines, high-vacuum pumps, canned pumps, precise gimbals that suspend sensors, and pumps that handle corrosive or gritty fluids.
Document ID
19940000455
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Tech Brief
Authors
Meeks, Crawford R.
(AVCON)
Dirusso, Eliseo
(NASA Lewis Research Center, Cleveland, OH.)
Brown, Gerald V.
(NASA Lewis Research Center, Cleveland, OH.)
Date Acquired
August 16, 2013
Publication Date
August 1, 1994
Publication Information
Publication: NASA Tech Briefs
Volume: 18
Issue: 8
ISSN: 0145-319X
Subject Category
Mechanics
Report/Patent Number
LEW-15517
Accession Number
94B10455
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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