Cryogenic refrigerator with non-metallic regenerative heat exchanger
AssigneeHelix Technology Corporation
InventorBruce R. Andeen
Life of this patent
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Abstract
A refrigerator for operating at cryogenic temperatures which has a heat exchanger comprising a previous regenerative matrix of plastic material, the elements of which behave substantially as isothermal bodies.
Claims12
A regenerative heat exchanger for operating at cryogenic temperatures characterized by its regenerative heat exchanging element being a pervious matrix of plastic material.
A regenerative heat exchanger for operating at cryogenic temperatures characterized by its regenerative heat exchanging element comprising a pervious displacer containing non-metallic matrix elements which behave substantially as isothermal bodies.
A refrigerator for operating at cryogenic temperatures characterized by having a heat exchanger comprising a pervious regenerative matrix of plastic material.
A refrigerator for operating at cryogenic temperatures comprising a compressor, a reciprocating displacer within a cold finger, the displacer being driven in reciprocating motion by the compressor through the medium of a compressable gas and a regenerative heat exchanger in the displacer in communication with the compressed gas comprising a pervious matrix of plastic material.
Dependencies are inferred from the claim text.