Pulse tube refrigerator

摘要

A pulse tube refrigerator is provided. A pulse tube is inserted into a regenerator such that the central axis of the pulse tube parallels the central axis of the regenerator and that a U-shaped working gas channel is formed by the pulse tube and the regenerator. It is possible to refrigerate more members by increasing the available area of a cold head formed in a cold heat exchanger. It is possible to reduce a restriction on the installing space of a refrigerating unit by reducing the length of the refrigerating unit. It is possible to reduce manufacturing cost by reducing the number of sealing members for the combination of a sealed cell.