| 摘要 |
<p>A freezer for a refrigerator using 1,1,1,2-tetrafluoroethane as a refrigerant, wherein a lubricating oil (10) for a compressor mainly comprises an ester prepared by the reaction of at least one dihydric or higher alcohol bearing eight or less carbon atoms and having a viscosity of 2 to 8 cst at 100 DEG C with at least one linear or branched monobasic fatty acid hearing 5 to 8 carbon atoms and the moisture content in the freezer is kept below the saturation moisture content in the lubricating oil (10), thereby solving the problems of the return of the oil to the compressor and the inhibition of the circulation of the refrigerant by the moisture contained in the oil, and maintaining a stable performance for long. <IMAGE></p> |
