LUBRICANT COMPOSITION FOR REFRIGERATOR AND COMPRESSOR USING THE SAME.

摘要

Disclosed is a lubricant composition for refrigerators, which is characterized by using a substance mainly composed of a polyoxyalkylene glycol derivative and having a hydroxyl number of not more than 5 mgKOH/g, as the base oil. Also disclosed is a compressor using such a lubricant composition for refrigerators. The lubricant composition for refrigerators is used for a refrigerator which uses a refrigerant having a specific structure such as an unsaturated fluorinated hydrocarbon that is usable in current automobile air-conditioning systems. The lubricant composition for refrigerators exhibits excellent compatibility with the refrigerant, while having excellent stability. Also disclosed is compressor using such a lubricant composition for refrigerators.