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Improved Gas-Gap Heat SwitchFour modifications in design of gas-gap heat switch decrease residual thermal conductance in "off" state, making it act more nearly like true on/off switch. New version differs in surface finish of fins, thickness of stainless steel supporting cylinder, size of gaps at ends of fins, and plumbing for gas. Switches have no moving parts and offer reliability and long operating life.
Document ID
19910000374
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Tech Brief
Authors
Chan, Chung K. (Caltech)
Date Acquired
August 14, 2013
Publication Date
August 1, 1991
Publication Information
Publication: NASA Tech Briefs
Volume: 15
Issue: 8
ISSN: 0145-319X
Subject Category
Physical Sciences
Report/Patent Number
NPO-18136
Accession Number
91B10374
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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