申请人:Idemitsu Kosan Co., Ltd
公开号:EP2826848A1
公开(公告)日:2015-01-21
A lubricating oil composition for a refrigerating machine according to the present invention includes: a base oil including as a main component at least one kind of oxygen-containing compound selected from polyoxyalkylene glycols, polyvinyl ethers, copolymers of poly(oxy)alkylene glycols or monoethers thereof and polyvinyl ethers, polyol esters, and polycarbonates; a sulfonic acid metal salt having a hydrocarbyl group; and a phosphoric acid ester. The lubricating oil composition for a refrigerating machine can enhance the abrasion resistance of a sliding part of a refrigerating machine using a refrigerant including at least one kind of fluorine-containing organic compound selected from compounds represented by the following molecular formula (A) or including a combination of the fluorine-containing organic compound and a saturated fluorinated hydrocarbon compound: CpOqFrRs (A) [in the formula: R represents Cl, Br, I, or H; and p represents an integer of from 1 to 6, q represents an integer of from 0 to 2, r represents an integer of from 1 to 14, and s represents an integer of from 0 to 13, provided that, when q represents 0, p represents from 2 to 6 and one or more carbon-carbon unsaturated bonds are included in a molecule].
根据本发明,一种用于制冷机的润滑油组合物包括:一种基础油,其主要成分包括至少一种选自聚氧烷基乙二醇、聚乙烯醚、聚(氧)烷基乙二醇或其单醚与聚乙烯醚的共聚物、多元醇酯和聚碳酸酯的含氧化合物;一种具有烃基的磺酸金属盐;以及一种磷酸酯。制冷机润滑油组合物可以提高制冷机滑动部件的耐磨性,使用的制冷剂包括至少一种含氟有机化合物,这些化合物选自以下分子式(A)所代表的化合物,或包括含氟有机化合物和饱和含氟烃化合物的组合:CpOqFrRs (A) [式中:R 代表 Cl、Br、I 或 H;p 代表 1 至 6 的整数,q 代表 0 至 2 的整数,r 代表 1 至 14 的整数,s 代表 0 至 13 的整数,条件是当 q 代表 0 时,p 代表 2 至 6,且分子中包含一个或多个碳-碳不饱和键]。