Cryogenic device with compact exchanger
AssigneeSociete Francaise de Detecteurs Infrarouges-Sofradir
InventorsJean-Christophe Terme, Ahmad Sultan
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Abstract
This cold generation device implements the “Joule-Thomson” expansion principle. It includes a heat exchanger having a fluid under high pressure and under low pressure circulating in counterflow therethrough. The heat exchanger is formed of the stack of pellets (5) made of a porous material, and particularly a sintered material, forming a cylindrical mandrel, having a capillary (10) wound at the periphery thereof and in contact therewith, the capillary having the high-pressure fluid circulating therethrough, the low-pressure fluid circulating in counterflow inside of the porous mandrel thus formed.
Claims8
A cold generation device implementing the “Joule-Thomson” expansion principle, comprising a heat exchanger having a fluid under high pressure and under low pressure circulating in counterflow therein,
- wherein the heat exchanger is formed of the stack of pellets made of a porous material, and particularly a sintered material, forming a cylindrical mandrel, having a capillary wound at the periphery thereof and in contact therewith, the capillary having the high-pressure fluid circulating therethrough, the low-pressure fluid circulating in counterflow inside of the porous mandrel thus formed;
- and wherein a thermally-insulating porous element is interposed between each of the pellets.
Dependencies are inferred from the claim text.