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In-cylinder friction reduction using a surface finish optimization technique

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journal contribution
posted on 29.05.2009 by Homer Rahnejat, Sashi Balakrishnan, Paul King, S.J. Howell-Smith
The paper describes the importance of reducing frictional losses in internal combustion (IC) engines, thereby improving engine efficiency. One of the main sources contributing significantly to engine friction is the interaction between the piston compression and oil rings and the cylinder bore/liner. Improving the tribological performance in these conjunctions has the greatest potential for performance improvement in the IC engine. Traditionally, the approaches used to tackle this problem have relied heavily on empirical engineering judgement. These have resulted in many inconclusive studies, involving a large number of alternatives, including the introduction of cylinder liners with surface modification work and/or with special coatings. This paper highlights a fundamental investigation of surface modification and coating and its impact on frictional performance. The study combines numerical and experimental approaches. Very good agreement is found between the conclusions of numerical predictions and those of engine test bed work.

History

School

  • Mechanical, Electrical and Manufacturing Engineering

Citation

RAHNEJAT, H. ... et al., 2006. In-cylinder friction reduction using a surface finish optimization technique. Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering, 220 (9), pp. 1309-1318

Publisher

Professional Engineering Publishing / © IMECHE

Version

VoR (Version of Record)

Publication date

2006

Notes

This article was published in the Journal, Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering [© IMECHE]. The definitive version is available at: http://www.pepublishing.com/

ISSN

0954-4070

Language

en

Exports