Design and Preliminary Testing of BEIs CryoPulse 1000, the Commercial One Watt Pulse Tube Cooler

S.W.K. Yuan, D.T. Kuo, and A.S. Loc

Cryocooler Group, Edcliff Division

BEI Technologies

Sylmar, California 91342

ABSTRACT

This paper describes BEIs efforts in producing a One Watt Pulse Tube Cooler, the CryoPulse 1000, for commercial applications.The cooler was designed by a computer model which has been validated against various Stirling and Pulse Tube coolers in the literature^1-8.The cooler was designed, fabricated and tested.Preliminary testing showed that the CryoPulse 1000 produces good cooling.However, the heat exchanger at the hot end of the regenerator needs to be modified, to more efficiently reject heat energy generated.Detailed test results will be presented in a later paper.