In-cylinder friction reduction using a surface finish optimization technique

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...

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Main Authors:	Homer Rahnejat, Sashi Balakrishnan, Paul King, S.J. Howell-Smith
Format:	Default Article
Published:	2006
Subjects:	Mechanical engineering not elsewhere classified Internal combustion engines In-cylinder friction Advanced cylinder liners Coatings (Nikasil, DLC) Surface modification (laser etching) Mechanical Engineering not elsewhere classified Mechanical Engineering
Online Access:	https://hdl.handle.net/2134/4744
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id	rr-article-9564854
record_format	Figshare
spelling	rr-article-95648542006-01-01T00:00:00Z In-cylinder friction reduction using a surface finish optimization technique Homer Rahnejat (1247550) Sashi Balakrishnan (7200980) Paul King (1247412) S.J. Howell-Smith (7201925) Mechanical engineering not elsewhere classified Internal combustion engines In-cylinder friction Advanced cylinder liners Coatings (Nikasil, DLC) Surface modification (laser etching) Mechanical Engineering not elsewhere classified Mechanical Engineering 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. 2006-01-01T00:00:00Z Text Journal contribution 2134/4744 https://figshare.com/articles/journal_contribution/In-cylinder_friction_reduction_using_a_surface_finish_optimization_technique/9564854 CC BY-NC-ND 4.0
institution	Loughborough University
collection	Figshare
topic	Mechanical engineering not elsewhere classified Internal combustion engines In-cylinder friction Advanced cylinder liners Coatings (Nikasil, DLC) Surface modification (laser etching) Mechanical Engineering not elsewhere classified Mechanical Engineering
spellingShingle	Mechanical engineering not elsewhere classified Internal combustion engines In-cylinder friction Advanced cylinder liners Coatings (Nikasil, DLC) Surface modification (laser etching) Mechanical Engineering not elsewhere classified Mechanical Engineering Homer Rahnejat Sashi Balakrishnan Paul King S.J. Howell-Smith In-cylinder friction reduction using a surface finish optimization technique
description	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.
format	Default Article
author	Homer Rahnejat Sashi Balakrishnan Paul King S.J. Howell-Smith
author_facet	Homer Rahnejat Sashi Balakrishnan Paul King S.J. Howell-Smith
author_sort	Homer Rahnejat (1247550)
title	In-cylinder friction reduction using a surface finish optimization technique
title_short	In-cylinder friction reduction using a surface finish optimization technique
title_full	In-cylinder friction reduction using a surface finish optimization technique
title_fullStr	In-cylinder friction reduction using a surface finish optimization technique
title_full_unstemmed	In-cylinder friction reduction using a surface finish optimization technique
title_sort	in-cylinder friction reduction using a surface finish optimization technique
publishDate	2006
url	https://hdl.handle.net/2134/4744
_version_	1797108965223432192

In-cylinder friction reduction using a surface finish optimization technique

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