Production and use of coolant in cryogenic devices

Refrigeration – Storage of solidified or liquified gas – With sorbing or mixing

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62 471, 62 511, 62 64, 62114, 252 67, 252 70, 252 71, F17C 1100

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active

050385712

ABSTRACT:
A coolant for use in cryogenic devices of closed cycle system which comprises a mixture of a liquid nitrogen and a fluorocarbon of the formula: C.sub.n F.sub.2n+2, wherein n is an integer of 2 to 4. The coolant, when used to cool heat generating semiconductor devices and other devices to a cryogenic temperature, exhibits an increased heat flux and thus an increased cooling capability, in addition to a simple and small structure of the cooling system, and a prevention of environmental pollution.

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