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Orifice Blocks Heat Pipe in Reverse ModeHigh forward-mode conductance is combined with rapid reverse-mode shutoff in a heat pipe originally developed to cool spacecraft payloads. A narrow orifice within the pipe "chokes off" the evaporator if heat sink becomes warmer than source. During normal operation, with source warmer than sink, orifice has little effect. Design is simpler and more compact than other thermal-diode heat pipes and requires no special materials, forgings, or unusual construction techniques.
Document ID
19810000185
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Tech Brief
Authors
Alario, J. P.
(Grumman Aerospace Corp.)
Date Acquired
August 11, 2013
Publication Date
November 1, 1982
Publication Information
Publication: NASA Tech Briefs
Volume: 6
Issue: 2
ISSN: 0145-319X
Subject Category
Mechanics
Report/Patent Number
ARC-11341
Accession Number
81B10185
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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