LUBRICANT OIL COMPOSITION FOR COMPRESSION REFRIGERATOR

摘要

Provided is a lubricant oil composition for a compression refrigerator, in which at least one organic compound having a double bond in the molecule thereof is contained in a base oil, wherein the at least one organic compound is selected from an organic compound having at least two non-conjugated double bonds in the molecule, a terpene compound having a double bond in the molecule and an aliphatic unsaturated hydrocarbon having one double bond in the molecule and having 12-30 carbon atoms. The lubricant oil composition exhibits excellent thermal and chemical stability when used in a compression refrigerator that utilizes a saturated fluorinated hydrocarbon cooling medium having a fewer carbon atoms and having a lower global warming potential.