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Porous Barrier To Flow Of Hot GasPorous, ropelike barrier prevents recirculating flow of hot, hydrogen-rich steam from reaching nickel-alloy bellows seal located deep in gap in wall of combustion chamber. Proven successful protecting bellows seal at different values of protrusion of coolant tubes giving rise to recirculating hot flow. Similar barriers help block deleterious recirculating flow of hot gases in other combustion chambers such as furnaces and turbomachines.
Document ID
19920000363
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Tech Brief
Authors
Onstott, Joseph W. (Rockwell International Corp.)
Rietdyk, Jacob (Rockwell International Corp.)
Date Acquired
August 15, 2013
Publication Date
June 1, 1992
Publication Information
Publication: NASA Tech Briefs
Volume: 16
Issue: 6
ISSN: 0145-319X
Subject Category
Materials
Report/Patent Number
MFS-29784
Accession Number
92B10363
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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