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Surface characterization of a real-world cylinder liner subject to deposition from combustion

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conference contribution
posted on 16.10.2018 by Rickie Bewsher, Michael Leighton, Mahdi Mohammadpour, Gunter Offner, O. Knaus
This paper investigates the effects of combustion product deposition using a cylinder liner taken from a C-segment passenger vehicle run for 105,000 miles. Using a novel methodology of Atomic Force Microscopy and X-ray Photoelectron Spectroscopy the pressure coefficient of boundary shear strength of asperities and the nature of the depositions along the liner is considered to predict the boundary friction of a piston ring pack. Results show that the combustion depositions create localized values of the pressure coefficient of boundary shear strength of asperities at top dead centre, mid-stroke and bottom dead centre, increasing ring pack friction by 50 N in the combustion stroke per engine cycle.

History

School

  • Mechanical, Electrical and Manufacturing Engineering

Published in

OeTG Symposium 2018, Tribology in Industry and Research

Citation

BEWSHER, S.R. ... et al, 2018. Surface characterization of a real-world cylinder liner subject to deposition from combustion. Presented at the OeTG Symposium 2018, Tribology in Industry and Research, Vienna, Austria, 22 November 2018.

Publisher

OeTG – The Austrian Tribology Society

Version

AM (Accepted Manuscript)

Publisher statement

This work is made available according to the conditions of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) licence. Full details of this licence are available at: https://creativecommons.org/licenses/by-nc-nd/4.0/

Acceptance date

01/10/2018

Publication date

2018

Notes

This is a conference paper.

Language

en

Location

Wien, Austria

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