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Cryogenic foil bearing turbopumpsCryogenic foil bearing turbopumps offer high reliability and low cost. The fundamental cryogenic foil bearing technology has been validated in both liquid hydrogen and liquid oxygen. High load capacity, excellent rotor dynamics, and negligible bearing wear after over 100 starts and stops, and over many hours of testing, were observed in both fluids. An experimental liquid hydrogen foil bearing turbopump was also successfully demonstrated. The results indicate excellent stability, high reliability, wide throttle-ability, low bearing cooling flow, and two-phase bearing operability. A liquid oxygen foil bearing turbopump has been built and is being tested at NASA MSFC.
Document ID
19950009916
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Gu, Alston L.
(Allied-Signal Aerospace Co. Torrance, CA, United States)
Date Acquired
September 6, 2013
Publication Date
November 1, 1993
Publication Information
Publication: JHU, The 1993 JANNAF Propulsion Meeting, Volume 2
Subject Category
Spacecraft Propulsion And Power
Accession Number
95N16331
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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