Non-CFC refrigerant mixture
AssigneeGeneral Signal Corporation
InventorChuan Weng
Life of this patent
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Abstract
A refrigeration heat exchanger section useful in circulating a substantially non-CFC refrigerant mixture which comprises: a compressor means, an auxiliary condenser, a first condenser, a second condenser, a third condenser, a subcooler and a liquid/gas separator, wherein a subcooled refrigerant liquid mixture taken as bottoms from the liquid/gas separator is distributed and expanded by a first expansion means and a second expansion means to form first and second expanded streams, respectively, such that the first expanded stream is returned to the auxiliary condenser and compressor in order to avoid overheating of the compressor.
Claims2
A refrigerant mixture for use in a refrigeration system capable of providing temperatures as low as about -150.degree. C. consisting of:
- 1-chloro-1,1-difluoroethane;
- 1,1,1,2-tetrafluoroethane;
- a trifluoromethane;
- a carbon tetrafluoride;
- and
- argon.
Dependencies are inferred from the claim text.