抄録
Pulse tube refrigerator does not have moving parts in the expander and thus have higher reliability. So, it has already been used practically as a cryocooler. The phase shifter in the cryocooler generally uses the inertance tube. In this study, we propose the new phase shifter, "elastic body" and "liquid piston", different from the inertance tube. The effect of the new shifter on the refrigerator performance is examined analytically and experimentally using experimental model pulse tube refrigerator.
