TRIBOCHEMICAL APPROACH FOR ESTABLISHMENT OF RELIABILITY TECHNOLOGY FOR ROOM AIR CONDITIONING SYSTEM USING R410A REFRIGERANT AND POE LUBRICANT
【摘要】：正R410A refrigerant and POE lubricant are recognized to be suitable for the alternative system of room air conditioners using HCFC22 refrigerant and mineral oil. In this paper, we have estimated the reliability of the system from the tribochemical point of view. And we have established highly reliable R410A/POE system for room air conditioners by modifying the elemental parts of the system and compressor including lubricant and dryer. Also, we have defined the criteria in manufacturing process for controlling water, air, contaminant and so on to prevent the abnormal wear of the sliding parts and chemical damage of refrigerant, lubricant and motor materials. We have successfully put the new type of the room air conditioners using R410A and POE into the market and promote the complete phase out of HCFC22 until the early in 2000's.