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Investigation of Soot Contaminated Lubricant Wear Mechanisms
Technical Paper
2007-01-1964
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
A detailed investigation has been carried out to understand the effect that soot has on the properties of automotive lubricants. The paper builds on previous work, through testing of different lubricants and increased levels of soot contamination. The objective of the work was to increase the understanding of the wear mechanisms that occur within the contaminated contact zone, to help in future development of a predictive wear model to assist in the valve-train design process. Testing has been carried out using specimens operating under realistic engine conditions, using a reciprocating test-rig specifically designed for this application, where a steel disc is held in a heated bath of oil and a steel ball (replicating a valve train contact) is attached to a reciprocating arm. Detailed analysis of the test specimens has been carried out using scanning electron microscopy (SEM) to identify wear features relating to the proposed wear mechanisms.
The results have revealed how varying lubrication conditions changes the wear rate of engine components and determines the wear mechanism that dominates for specific situations. Testing has also shown the positive effects of advanced engine lubricants to reduce the amount of wear produced.
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Citation
GREEN, D. and LEWIS, R., "Investigation of Soot Contaminated Lubricant Wear Mechanisms," SAE Technical Paper 2007-01-1964, 2007, https://doi.org/10.4271/2007-01-1964.Also In
References
- Sato, H. Tokuoka, N. Yamamoto, H. Sasaki, M. Study Of Wear Mechanism By Soot Contaminated In Engine Oil 1999 SAE Paper No. 1999-01-3573
- Mainwaring, R. Soot And Wear In Heavy Duty Diesel Engines 1997 SAE Paper No. 971631
- Dennis, A.J. Garner, C.P. Taylor, D.H.C. The Effect of EGR on Diesel Engine Wear 1999 SAE Paper No. 1999-01-0839
- Li, S. Csontos, A.A. Gable, B.M. Passut, C.A. Jao, T. Wear in Cumins M-11/EGR Test Engines 2002 SAE Paper No. 2002-01-1672
- Rounds, F.G. Carbon: Cause of Diesel Engine Wear? 1977 SAE Paper No. 770829
- Yoshida, K. Sakurai, T. Some Aspects of Tribological Behaviour on Dispersed-Phase System 1998 Lubrication Engineering 44 913 921
- Gautam, M. Durbha, M. Chitoor, K. Jaraiedi, M. Mariwalla, N. Ripple, D. Contribution of Soot Contaminated Oils to Wear 1998 SAE Paper No. 981406
- Clague, A.D.H. Donnet, J.B. Wang, T.K. Peng, J.C.M. A Comparison of Diesel Engine Soot with Carbon Black 1999 Carbon 37 1553 1565
- Nagai, I. Endo, H. Nakamura, H. Yano, H. Soot and Valve Train Wear in Passenger Car Diesel Engines 1983 SAE Paper No. 831757
- Green, D.A. Lewis, R. Dwyer-Joyce, R. S. The Wear Effects and Mechanisms of Soot Contaminated Automotive Lubricants 2006 Proceedings of the IMechE 220 Journal of Engineering Tribology 159 169