Maryland's Defense Patent Database

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Temperature actuated capillary valve for loop heat pipe system

Patent image
NRL

A capillary flow valve for use in a two phase heat transfer system such as a loop heat pipe, including an inlet port for receiving working fluid in a vapor-phase, an outlet port for outputting working fluid in a vapor-phase, and a porous wick material extending across the interior of the valve. Heating the wick evaporates liquid-phase working fluid from the wick and allows the vapor-phase working fluid to pass through the wick to the outlet port. Removing the heat allows liquid to condense in the wick, preventing flow of the vapor-phase working fluid through the wick to the outlet port.

Inventors: 
Hoang, Triem T.
Patent Number: 
Technical domain: 
Thermal Systems
FIle Date: 
2012-08-09
Grant Date: 
2015-09-29
Grant time: 
1,146 days
Grant time percentile rank: 
21
Claim count percentile rank: 
5
Citations percentile rank: 
2
'Cited by' percentile rank: 
1
Assignee: 
US NAVY