COMPRESSOR HOLDING EXCELLENT ENERGY EFFICIENCY AND CAPABLE OF FORMING BUBBLE ON INSIDE

摘要

PURPOSE: To provide a compressor using hydrofluorocarbon refrigerants which exhibits excellent energy efficiency and generates less noise. CONSTITUTION: A motor compressor unit 20 has a rotating oil pickup tube 68. An oil paddle 76 is attached to the oil pickup tube 68. The oil paddle 76 rotates in a base lubricant of polyol ester mixed with a siloxane ester foaming agent. The combination of the foaming additive with the oil paddle creates a foam layer in an oil sump 74 to reduce the sound of the compressor.