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Record Details

Record 18 of 3426
Cryogenic Hybrid Magnetic Bearing
Author and Affiliation:
Meeks, Crawford R.(AVCON)
Dirusso, Eliseo(NASA Lewis Research Center, Cleveland, OH.)
Brown, Gerald V.(NASA Lewis Research Center, Cleveland, OH.)
Abstract: Cryogenic 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.
Publication Date: Aug 01, 1994
Document ID:
(Acquired Dec 28, 1995)
Accession Number: 94B10455
Subject Category: MECHANICS
Report/Patent Number: LEW-15517
Document Type: NASA Tech Brief
Publication Information: NASA Tech Briefs (ISSN 0145-319X); 18; 8; P. 66
Publisher Information: United States
Financial Sponsor: NASA; United States
Organization Source: NASA Lewis Research Center; Cleveland, OH, United States
Description: In English
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: No Copyright
Availability Source: National Technology Transfer Center (NTTC), Wheeling, WV
Availability Notes: Additional information available through: National Technology Transfer Center (NTTC), Wheeling, WV 26003, (Tel: 1-800-678-6882).
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