Abstract
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.
Originalsprache | englisch |
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Seitenumfang | 9 |
Publikationsstatus | Veröffentlicht - 2018 |
Extern publiziert | Ja |
Veranstaltung | OeTG Symposium 2018: Tribology in Industry and Research - Wien, Österreich Dauer: 22 Apr. 2018 → … |
Konferenz
Konferenz | OeTG Symposium 2018 |
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Land/Gebiet | Österreich |
Ort | Wien |
Zeitraum | 22/04/18 → … |