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Title: Tribology of piston compression ring conjunction under transient thermal mixed regime of lubrication
Authors: Morris, Nicholas J.
Rahmani, Ramin
Rahnejat, Homer
King, P.D.
Fitzsimons, Brian
Keywords: Piston ring
Mixed lubrication
Issue Date: 2013
Publisher: © Elsevier Ltd.
Citation: MORRIS, N. ... et al., 2013. Tribology of piston compression ring conjunction under transient thermal mixed regime of lubrication. Tribology International, 59, pp.248-258.
Abstract: Fuel efficiency is the main IC engine attribute, with the compression ring-bore contact consuming nearly 5% of the fuel energy. Analyses are often idealised, such as isothermal condition and smooth surfaces, the former being particularly contrary to practice. An analytic solution to the average flow model is presented for this contact with a new analytical thermal model. The generated contact temperatures, particularly at the inlet result in thinner films than the idealised analyses. For the simulated city driving condition the power loss is mainly due to viscous shear under cold engine condition, whilst for a hot engine boundary friction dominates.
Description: This article was published in the journal, Tribology International [© Elsevier Ltd.] and the definitive version is available at: tp://dx.doi.org/10.1016/j.triboint.2012.09.002
Version: Accepted for publication
DOI: 10.1016/j.triboint.2012.09.002
URI: https://dspace.lboro.ac.uk/2134/11868
Publisher Link: http://dx.doi.org/10.1016/j.triboint.2012.09.002
ISSN: 0301-679X
Appears in Collections:Published Articles (Mechanical, Electrical and Manufacturing Engineering)

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