Abstract Lockheed Martin has built and tested a pulse tube cryocooler that achieved a no-load cold tip temperature of 5.35 K while rejecting heat at room temperature. The system is a simple pulse tube cryocooler, with a room temperature flexure-bearing linear compressor as its only moving part. The compressor operates on resonance at high frequency, with the low mass and high efficiency required for space applications. This system was developed with Lockheed Martin Independent Research and Development (IRAD) funds, and proves the concept that a reciprocating cryocooler can work well at low temperature and high frequency. Such a pulse tube is extremely attractive for space applications because the no-moving-parts coldhead and the single compressor and electronic controller have the same high reliability as previous single-stage pulse tube coolers operating at higher cold-tip temperatures.
Development of a 10 K Pulse Tube Cryocooler for Space Applications
Cryocoolers 12 ; 241-246
2003-01-01
6 pages
Article/Chapter (Book)
Electronic Resource
English
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