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The influence of inter-ring pressures on piston-ring/liner tribological conjunction

journal contribution
posted on 08.02.2013 by W.W.F. Chong, S.J. Howell-Smith, M. Teodorescu, M.D. Vaughan
The article proposes a mathematical model, which predicts the frictional performance of an internal combustion engine compression ring in the vicinity of the top dead center region. It accounts for the blow-by induced inter-ring pressures drop and for the cavitation region at the trailing edge of the contact. The model is used to predict the behaviour of both new and worn compression rings for wide open throttle operating conditions. It is shown that the wear of the ring profile increases the oil film thickness decrease the frictional losses and significantly reduces the extent of the cavitation region.

History

School

  • Mechanical, Electrical and Manufacturing Engineering

Citation

CHONG, W.W.F. ... et al., 2012. The influence of inter-ring pressures on piston-ring/liner tribological conjunction. Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology, 227 (2), pp. 154 - 167.

Publisher

Sage © Institution of Mechanical Engineers

Version

VoR (Version of Record)

Publication date

2012

Notes

Clsed Access. This article was published in the Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology [Sage © Institution of Mechanical Engineers] and the definitive version is available at: http://dx.doi.org/10.1177/1350650112461579

ISSN

1350-6501

eISSN

2041-305X

Language

en

Exports