NASA SBIR SUCCESS STORY  Goddard Space Flight Center  
1992 Phase II 

Cryogenic Heat Transport System  

Cullimore & Ring Technologies 
Littleton, CO 

Swales and Associates 
Beltsville, MD 
 

INNOVATION 
A vibration isolating cryogenic heat transport system capable of transporting waste heat from electronics and sensors over long distances with the use of no moving parts or thermal switches.
Cryogenic Heat Transport System
Cryogenic Heat Transport System
Optional Powerpoint file
ACCOMPLISHMENTS 
    • The technology successfully operated at 80-90 °K during ground tests and in the zero gravity CRYOTSU canister on board STS-95
    • Testing successfully demonstrated acquisition of waste heat through the vaporization of a working fluid which is passively pumped using the surface tension forces developed in a  fine porous wick structure
    • Extrapolated the development of similar room temperature technology to cryogenic applications
    • Characterized operation for an 80-90 °K system using nitrogen as the working fluid. Spin off development demonstrated functionality down to 40 °K using neon.
COMMERCIALIZATION 
    • Miniaturization of loop components has provided the ground work for extrapolating the technology to room temperature electronic cooling.
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GOVERNMENT/SCIENCE APPLICATIONS 
    • Vibration free cooling of cryogenic sensors and electronics
    • Method for connecting multiple cryogenic cooling sources to a single heat source
    • Lightweight, flexible, vibration free

    • replacement for cryogenic thermal switches
For more information about this firm, please send e-mail to crtech or Swales representatives 

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Curator: SBIR Support