To provide a reliable regenerator for Stirling engines having high heat exchange efficiency that can be manufacturable easily and inexpensively.
The regenerator 15 for Stirling engines is made of a laminate formed by winding a resin film 8, and is arranged on the channel of a working medium for connecting the expansion and compression chambers of the Stirling engines so that the lamination direction of the resin film 8 crosses the flow direction of the working medium. A plurality of protruded parts 10 are formed on the surface of the resin film 8 so that a gap section is formed between the laminated resin films 8. The number of protruded parts 100 per unit area gradually increases or decreases from the inner periphery end side in the winding direction of the resin film 8 to the outer periphery end side on the surface of the resin film 8.
Toshio Morita
Yoshihei Nakamura
Yutaka Horii
Hisato Noda
Masayuki Sakai