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Development of a Lubricant for Retrofitting Automotive Air Conditioners for Use with HFC-134a
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English
Abstract
This paper presents a new refrigeration lubricant for use with the HFC-134a retrofit refrigerant in automotive air-conditioning systems originally designed to use the CFC-12 refrigerant, one of the regulated CFCs scheduled to be phased out. This new retrofit lubricant provides high lubricity and excellent performance characteristics as a result of adopting a newly developed PAG base oil with a block polymer structure and a new antiwear additive formulation. In retrofit systems, it assures sufficient durability for wobble-plate-type variable displacement compressors, which experience severe lubrication conditions.
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Citation
Yokoo, S., Doi, K., Takano, T., and Kaimai, T., "Development of a Lubricant for Retrofitting Automotive Air Conditioners for Use with HFC-134a," SAE Technical Paper 940594, 1994, https://doi.org/10.4271/940594.Also In
References
- Yamada A. Sonoda Y. Arakawa Y. “Development of an Automotive Air Conditioning System Using the HFC-134a Refrigerant,” SAE Paper 920216
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- Matsuzaki T. Akei M. “The Friction and Wear Behavior in Refrigerant Atmosphere,” Proceedings of the International Seminar on New Technology of Alternative Refrigerants Tokyo 1993
- Davis K. E. Vinci J. N. “Formulation of Polyol Ester Lubricants for Use with HFC Refrigerants,” Proceedings of the International seminar on New Technology of Alternative Refrigerants Tokyo 1993