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The Role of Additives in the Scuffing of Diesel Engine Piston Rings
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English
Abstract
A 3/16″ hole drilled at bottom dead center of a small diesel engine allowed the rings to be observed optically and their surface temperature measured by infra red microdetector. Operating severity was increased by raising i) speed, ii) b.m.e.p., iii) liner temperature. Additives, oil viscosity and prolonged running were studied. It was found scuffing was far more prevalent and ring surface temperature far higher than expected. It seems the engine used scuffing as a means of running-in.
Authors
- M. J. Bailey - Lubrication Lab, Dept. of Mechanical Engrg., Imperial College (London/England)
- T. J. Crooks - Lubrication Lab, Dept. of Mechanical Engrg., Imperial College (London/England)
- P. T. Jeffs - Lubrication Lab, Dept. of Mechanical Engrg., Imperial College (London/England)
- A. Cameron - Lubrication Lab, Dept. of Mechanical Engrg., Imperial College (London/England)
Citation
Bailey, M., Crooks, T., Jeffs, P., and Cameron, A., "The Role of Additives in the Scuffing of Diesel Engine Piston Rings," SAE Technical Paper 790886, 1979, https://doi.org/10.4271/790886.Also In
References
- Bau̎mler H. MTZ. 1963 24 9 229
- Pywell R.F. Pike W.C. Inst. Pet. Symposium Montreux April 1973
- Grew W.J.S. Cameron A. “Thermodynamics of Boundary Lubrication and Scuffing” Proc. Roy. Soc. 1972 47 59
- Bailey M.J. Cameron A. “The Influence of Temperature and Metal Pairs on the Scuffing of a Commercial Oil” Inst. Mech. Eng., Proceedings 1973 187 67 73
- Spikes H.A. Cameron A. “A Comparison of Adsorption and Boundary Lubricant Failure” Proc. R. Soc. 1974 407 419