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Rotary Joint for Heat TransferRotary joint exchanges heat between two heat pipes - one rotating and one stationary. Joint accommodates varying heat loads with little temperature drop across interface. According to concept, heat pipe enters center of disklike stationary section of joint. There, wicks in central artery of heat pipe separate into multiple strands that lead to concentric channels on rotaryinterface side of stationary disk. Thin layer of liquid sodium/potassium alloy carries heat from one member of rotary joint to other. Liquid conducts heat efficiently while permitting relative motion between members. Polypropylene rings contain liquid without interfering with rotation.
Document ID
19850000546
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Tech Brief
Authors
Shauback, R.
(Thermacore, Inc.)
Date Acquired
August 12, 2013
Publication Date
March 1, 1986
Publication Information
Publication: NASA Tech Briefs
Volume: 9
Issue: 4
ISSN: 0145-319X
Subject Category
Machinery
Report/Patent Number
MFS-26015
Accession Number
85B10546
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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