Lubrication engineering · 1994 · 13 citations · 0 references
EngineeringMaterials EngineeringMaterials ScienceAir ConditioningPolymer ChemistryPolymer MaterialsLubricant AdditivesLubricant PropertiesLubrication EngineeringLubrication SystemsRefrigerationRefrigeration SystemsChemical Stability AssessmentChemical Stability TestingCompressorsLubricant FormulationLubricantsMiscibilityMiscibility DevelopmentRefrigerant Compressors
A polyol ester-based lubricant has been applied to HFC-134a household refrigerator compressors, because of its good miscibility with HFC-134a refrigerant, and there is a possibility that it will be applied to automobile air conditions. For better performance, further improvements are needed regarding miscibility, lubricity and chemical stability of the lubricant, because such systems are often used under extreme conditions. This report discusses the required properties and ways to improve performance of polyol esters as HFC-134a compressor lubricants. 7 refs., 14 figs., 4 tabs.