Heat engine regenerator and stirling engine using the regenerator

A heat engine regenerator, for use in a heat engine, configured to receive and store heat from a high-temperature gas flowing from a high-temperature space into the heat engine regenerator, and to provide the heat to a low-temperature fluid flowing from a low-temperature space into the heat engine regenerator, the heat engine regenerator comprising a large number of layered metallic meshes, wherein

• each metallic mesh includes a large number of mutually parallel longitudinal strands and a large number of mutually parallel lateral strands perpendicular to the longitudinal strands, and
• the metallic meshes are layered such that each metallic mesh is sequentially rotated in a same direction by a fixed angle with respect to an immediately previously layered metal mesh.