Refrigerant composition
AssigneeProtocol Resource Management Inc.
InventorJames W. Flowers
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Abstract
A refrigerant composition comprises a mixture of three HFC (hydrofluorocarbons) refrigerants, namely, HFC 32, HFC 125 and HFC 134a. A lower alkyl alcohol such as ethanol is included in the mixture to improve miscibility in commonly-used lubricants such as mineral oil by altering the viscosity of the entrained oil within the operating air-conditioning system. Optionally, a fifth component made be added, namely a hydrocarbon based refrigerant such as iso-butane or propane, to further improve characteristics of refrigerant. The resulting refrigerant is similar in characteristics to R22, and is compatible with existing air-conditioning and refrigeration devices originally for use with R22 refrigerant without system modifications.
Claims18
A refrigerant composition comprising a mixture of, by weight, about 20% to 25% HFC 32;
- about 20% to 28% HFC 125;
- 48% to 54% HFC 134a and about 0.008% to 1% by weight of a lower alkyl alcohol, formulated into a composition compatible with a refrigerating device.
A refrigerant composition comprising by weight about 20 to 25% HFC 32;
- about 22 to 28% HFC 125;
- 48 to 54% HFC 134a;
- about 0.6% to 1% lower alkyl alcohol and up to about 4% of a lower alkyl hydrocarbon compound.
Dependencies are inferred from the claim text.