Demonstration of a High Performance 35 K Pulse Tube Cryocooler
A single-stage pulse tube cooler has been designed and constructed that significantly advances the state-of-the-art of pulse tube cooler efficiency. The cooler produces 1 watt of cooling at 35 K for 200 watts of input power to the compressor at its design point. A head-to-head balanced flexure-bearing design, the compressor operates into a common compression chamber ported to the cold head. The cold head is a design configuration originally pioneered by TRW. The cooler has been packaged for space-flight applications and is being delivered to the Air Force Phillips Laboratory for indefinite life testing. Operation of the cooler is described and thermal performance test data is presented.
KeywordsTitanium Manifold Helium Beach Flange
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