REGENERATOR FOR STIRLING ENGINE AND STIRLING ENGINE USING THE SAME

PROBLEM TO BE SOLVED: To maximize performance of a regenerator by finding an optimal range of variation of clearances of a resin film in a regenerator for a Stirling engine composed of a resin film wound laminated body. SOLUTION: In this Stirling engine 1, a working medium is moved between a compressing space 45 and an expanding space 46 by a piston 12 and a displacer 13. Thus a high temperature-side heat transfer head 40 is heated, and a low temperature-side heat transfer head 41 is cooled. The regenerator 70 disposed between the compressing space 45 and the expanding space 46, is composed of the resin film wound laminated body 73 formed by winding the resin film 72 provided with a number of projections 74 on a surface by plastically deforming the film itself. The variation of clearances of the resin film 72 secured by the projections 74 is 48 μm or more and 72 μm or less. COPYRIGHT: (C)2008,JPO&INPIT