METHOD OF IMPROVING PERFORMANCE OF REFRIGERANT SYSTEMS

摘要

A method of improving performance of refrigerant systems such as refrigerato rs and air conditioners that utilize a refrigerant working fluid. The working fluid consists essentially of a heat transfer fluid and a lubricant that is miscible and is otherwise compatible with the heat transfer fluid at all operating temperatures of the refrigerant system. The method is directed particularly to chlorine-free fluoro-group organic fluids and more particularly to hydrofluorocarbon heat transfer fluids. The preferred lubricants comprise polyol ester basestocks and compounded polyol esters tha t are highly miscible with such hydrofluorocarbon heat transfer fluids.