| 摘要 |
Cryogenic regenerator formed by a spirally rolled, flexible composite material including a base layer having a top and a bottom provided with a plurality of spaced, substantially parallel corrugations extending outwardly therefrom and wherein the flexible base layer is rolled into a generally cylindrical spiral with the corrugations extending radially inwardly and engaging the top of the base layer to cause the base layer and the corrugations to cooperatively form a plurality of channels for conducting the working fluid through the regenerator. The relatively flexible composite material may be a relatively flexible, hardened epoxy; the composite material may be loaded with thermally conductive material and may be an epoxy loaded with thermally conductive material. The depth or transverse cross-sectional area of the regenerator channels may continuously decrease from the hot end to the cold end of the regenerator to reduce the working fluid volume in the regenerator and to decrease the pressure drop across the regenerator by providing an improved match between the density of the working fluid and the depth or transverse cross-sectional area of the regenerator channels from the hot end towards the cold end.
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