Refrigerator oil composition, and method of using the composition for lubrication
申请人:IDEMITSU KOSAN COMPANY LIMITED
公开号:EP1008643A2
公开(公告)日:2000-06-14
Provided is a refrigerator oil composition comprising a refrigerant that comprises carbon dioxide (CO2) as the essential component, and an ester-based lubricating oil composition; wherein the ratio of refrigerant/lubricating oil composition falls between 99/1 and 10/90 by weight. The refrigerator oil composition has good lubricity and sealability and can be stably used for a long period of time in a compression refrigeration cycle in which is used a refrigerant comprising CO2 as the essential component. Also provided is a method of using the composition for lubricating a compression refrigeration cycle equipped with an oil separator and/or a hot gas line.
本发明提供了一种冷冻机油组合物,它包括一种以二氧化碳(CO2)为基本成分的制冷剂和一种酯基润滑油组合物;其中制冷剂/润滑油组合物的重量比介于 99/1 和 10/90 之间。该冷冻机油组合物具有良好的润滑性和密封性,可在以二氧化碳为主要成分的制冷剂的压缩制冷循环中长期稳定使用。此外,还提供了一种使用该组合物的方法,用于润滑装有油分离器和/或热气管路的压缩制冷循环。