| abstract |
The lubricating oil composition for a refrigerating machine according to the present invention is a composition which is selected from the group consisting of polyoxyalkylene glycols, polyvinyl ethers, copolymers of poly (oxy) alkylene glycols or monoethers thereof and polyvinyl ethers, polyol esters and polycarbonates (A) represented by the formula C p O q F r R s (A) wherein R is at least one element selected from the group consisting of Cl, Br, I or H, p is 1 to 6, q is 0 to 2, r is 1 to 14, s is an integer of 0 to 13, Provided that when q is 0, p is from 2 to 6 and has at least one carbon-carbon unsaturated bond in the molecule], or at least one fluorine-containing organic compound selected from the group consisting of the fluorine-containing organic compound It is possible to enhance the wear resistance of the sliding portion of the refrigerator using the refrigerant containing the combination of the saturated fluorinated hydrocarbon compound and the saturated fluorinated hydrocarbon compound. |