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Direct measurement of piston friction of internal-combustion engines using the floating-liner principle
journal contribution
posted on 2015-06-08, 13:48 authored by Michael Gore, Michael Theaker, S.J. Howell-Smith, Homer Rahnejat, Paul KingPaul KingPiston–cylinder interactions account for a significant portion of frictional losses in an internal-combustion engine. This is
mainly as the result of significant changes in the operating conditions (the load, the speed and the temperature) as well
as the contact geometry and the encountered topography during a typical engine cycle. These changes alter the regime
of lubrication which underlies the mechanisms of friction generation. The multi-variate interactive nature of the problem
requires quite complex analyses which do not fully replicate the actual in-situ conditions. Therefore, there is a need for
direct measurement of cyclic friction under controlled conditions. The paper describes the use of a novel floating-liner
arrangement which is capable of direct measurement of friction, its transitory mechanisms, as well as determination of
the regime of lubrication.
Funding
This work was financially supported by the Engineering and Physical Sciences Research Council with the Program Grant: Encyclopaedic [grant number: EP/G012334/1], under which the current research is conducted, and a consortium of industrial concerns, including BP Castrol, Aston Martin Lagonda, Capricorn Automotive, Ricardo Consulting Engineers, ProDrive and ES Technology and, in particular, Capricorn Automotive Ltd.
History
School
- Mechanical, Electrical and Manufacturing Engineering
Published in
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART D-JOURNAL OF AUTOMOBILE ENGINEERINGVolume
228Issue
3Pages
344 - 354 (11)Citation
GORE, M. ... et al, 2014. Direct measurement of piston friction of internal-combustion engines using the floating-liner principle. Proceedings of the Institution of Mechanical Engineers Part D- Journal of Automobile Engineering, 228 (3), pp.344-354.Publisher
Sage Publications / © IMechEVersion
- VoR (Version of Record)
Publisher statement
This work is made available according to the conditions of the Creative Commons Attribution 3.0 Unported (CC BY 3.0) licence. Full details of this licence are available at: http://creativecommons.org/licenses/by/3.0/Publication date
2014Notes
This is an Open Access Article published by SAGE on behalf of IMechE and distributed under the terms of the Creative Commons Attribution 3.0 License (http://www.creativecommons.org/licenses/by/3.0/) which permits any use, reproduction and distribution of the work without further permission provided the original work is attributed.ISSN
0954-4070Publisher version
Language
- en