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High-Temperature, Flexible, Pressure-Assisted Brush SealCeramic-fibers brush and integral spring clip block hot, engine flows. High-temperature, pressure-assisted brush seal installed in movable panel in advanced hypersonic engine. Seal prevents flow of hot engine gas from penetrating gap between movable panel and adjacent stationary panel. Potential applications include sealing gaps in variable-geometry two-dimensional turbojet exhaust nozzles or sealing control surface gaps of hypersonic vehicles. Ceramic brush seals also used as structural seals in high-temperature furnaces or advanced ceramic heat exchangers.
Document ID
19930000094
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Tech Brief
Authors
Steinetz, Bruce M.
(NASA Lewis Research Center, Cleveland, OH.)
Sirocky, Paul J.
(Sverdrup Technology, Inc.)
Date Acquired
August 16, 2013
Publication Date
February 1, 1993
Publication Information
Publication: NASA Tech Briefs
Volume: 17
Issue: 2
ISSN: 0145-319X
Subject Category
Mechanics
Report/Patent Number
LEW-15086
Accession Number
93B10094
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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