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Title: In-cylinder friction reduction using a surface finish optimization technique
Authors: Rahnejat, Homer
Balakrishnan, S.
King, P.D.
Howell-Smith, S.J.
Keywords: Internal combustion engines
In-cylinder friction
Advanced cylinder liners
Coatings (Nikasil, DLC)
Surface modification (laser etching)
Issue Date: 2006
Publisher: Professional Engineering Publishing / © IMECHE
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
Abstract: 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.
Description: 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/
Version: Published
DOI: 10.1243/09544070JAUTO282
URI: https://dspace.lboro.ac.uk/2134/4744
Publisher Link: http://dx.doi.org/10.1243/09544070JAUTO282
ISSN: 0954-4070
Appears in Collections:Published Articles (Mechanical and Manufacturing Engineering)

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