Refrigeration oil composition and working fluid for refrigeration system
AssigneeJapan Sun Oil Company, Ltd.
InventorsRei Saito, Ryoichi Nakano, Hiei Nanso
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Abstract
A refrigeration oil composition includes: a mixture of a naphthenic mineral oil and at least one of a polyol ester oil and a polyvinyl ether oil; and at least one of a sorbitan compound and a glycerin fatty acid ester and a working fluid for a refrigeration system includes: the refrigeration oil composition; and one or more refrigerants selected from a hydrofluorocarbon refrigerant, a hydrofluoroolefin refrigerant and a carbon dioxide refrigerant.
Claims10
A refrigeration oil composition for one or more refrigerants selected from a hydrofluorocarbon refrigerant, a hydrofluoroolefin refrigerant and a carbon dioxide refrigerant, comprising:
- a mixture of a naphthenic mineral oil and a polyol ester oil;
- and
- a sorbitan compound,
- wherein the sorbitan compound is a compound of a polyoxyethylene, a sorbitan and a fatty acid wherein a content of the sorbitan compound is from 0.5 mass % to 5 mass % of a total amount of the refrigeration oil composition.
Dependencies are inferred from the claim text.