The present invention provides a refrigerator oil composition including: a base oil (A) composed of at least one selected from a polyalkylene glycol, a polyol ester, a poly-α-olefin, an alkylbenzene, and an mineral oil; an organic sulfur compound (B) having a sulfur content of 35% by mass or less; and a refrigerant (C) composed of at least one selected from carbon dioxide gas, a hydrocarbon, and ammonia, in which the refrigerator oil composition has a total sulfur content of 0.01 to 0.1% by mass with respect to a total amount of the components (A) and (B). The refrigerator oil composition is novel, and is free from an environmental problem such as the ozone layer destruction or the global warming, can retain its lubrication property for a long period of time, and does not cause the clogging of a capillary in a refrigeration cycle.
本发明提供了一种冷冻机油组合物,包括:基础油(A),由至少一种选自聚亚烷基二醇、多元醇酯、聚α-烯烃、烷基苯和矿物油的成分组成;
有机硫化合物(B),其
硫含量为 35% 或更低;以及制冷剂(C),由至少一种选自
二氧化碳气体、碳氢化合物和
氨的成分组成,其中冷冻机油组合物的总
硫含量为 0.其中冷冻机油组合物的总
硫含量相对于组分(A)和(B)的总量为 0.01 至 0.1%(质量百分比)。该冷冻机油组合物具有新颖性,不会造成
臭氧层破坏或全球变暖等环境问题,可长期保持其润滑性能,并且不会造成制冷循环中毛细管的堵塞。