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Sealing Performance of Lip-Type Shaft Seals with Circumferential Groove for an Automotive Air Conditioning Compressor
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English
Abstract
A mechanical seal has been commonly used as a sealing device for automotive air conditioning compressors. Though in recent years, a lip-type seal has increasingly been employed for the better sealing performance and economic advantages it offers. We have found, as a result of tests conducted on a lip-type seal of polytetrafluoroethylene (PTFE), that it exhibited a better sealing performance at high shaft rpm but had more fluid leakage at low shaft rpm when compared to a mechanical seal. Also, it should be noted that in the course of extended use, the sealing performance of the lip-type seal may show deterioration as the mating shaft becomes worn out. We made sample lip-type seals to check their sealing performance and, through observation of contact conditions of the seal face, obtained the findings that the sealing performance was substantially improved by providing a groove at the lip edge.
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Citation
Fukuoka, T., Shibata, M., and Shimasaki, K., "Sealing Performance of Lip-Type Shaft Seals with Circumferential Groove for an Automotive Air Conditioning Compressor," SAE Technical Paper 880305, 1988, https://doi.org/10.4271/880305.Also In
References
- Hirano F. Ishiwata H. “The lubricating conditions of lip seal,” Proc. Inst. Mech. Engr 180 187 196 1965-1966
- Nakamura K. Kawahara Y. “An investigation of sealing mechanism of rotary lip seals under dynamic condition,” Proc. JSLE International Tribology Conference 805 811 1985
- Ohtaki M. Yamamoto Y. Yoshino A. Shimomura T. Hirabayashi H. “Development of new lip type seals for an automotive air conditioning compressor,” SAE Paper 860493 1986