Speakers
Description
A gas-coupled two-stage Stirling-type coaxial pulse tube cryocooler driven by a dual-opposed-piston configuration linear compressor was designed and manufactured with numerical simulation and experiment test based on a high-capacity single-stage pulse tube cryocooler operating at around 40 K. The material and filling method of the regenerator was studied. The mixed stainless steel with different meshes were adopted as the first stage of regenerator, and the Er3Ni was added as the second stage of regenerator. The double-inlet and inertance tube together with room-temperature reservoir were adopted as phase shifter of the first stage, and a new designed double-inlet and cold reservoir were adopted as phase shifter of the second stage. some typical experimental results and considerations for achieving a better performance will also be presented in this paper.
