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US 5,622,644 AGranted
Mixed gas R-12 refrigeration apparatus
AssigneeIntercool Energy Corporation
InventorsRichard Stevenson, Mikhail Boyarsky, Boris V. Yudin, Oleg N. Podcherniev
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Abstract
A mixed gas refrigerant for use as a replacement for CFC refrigerants, and specifically, for R-12, which includes at least three components including R-134a, R-124, and n-butane, with the n-butane being at least present in trace amounts and specifically between 1% and up to 4%.
Claims2
A refrigerant composition for use as a substitute for R-12 in R-12 refrigeration apparatus, comprising a mixture of:
- (i) 64-68 molar % of R-134a;
- (ii) 32-36 molar % of R-124, and
- (iii) 3-4 molar % of n-butane.
A refrigerant composition for use as a substitute for R-12 in R-12 refrigeration apparatus, comprising a mixture of:
- (i) 64-68 molar % of R-134a;
- (ii) 32-36 molar % of R-124, and
- (iii) 1-2 molar % of n-butane.
Dependencies are inferred from the claim text.