Hydraulic fluid composition for refrigerator, refrigeration machine oil and refrigerator

摘要

One aspect of the invention isCompressor andCondenser andExpansion mechanism andComprising a refrigerant circulation system having an evaporatorA refrigerating machine in which refrigerant and refrigerating machine oil are filled in a refrigerant circulating systemFreezer oilAgainst the refrigerantTemperature is less thanFirst base oil having a solution region in the range of 1 to 80% by mass ratioHaving a viscosity of 40 ° C. lower than the first base oil;A second base oil having a smaller phase region than the first base oil for the refrigerant andContainsIt is a refrigerator.