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Novel testing methods for screening the tribological performance of ring-liner surfaces
Halmstad University, School of Business, Engineering and Science, The Rydberg Laboratory for Applied Sciences (RLAS).ORCID iD: 0000-0003-3149-4296
University of Sao Paulo, Sao Paulo, Brazil.
Halmstad University, School of Business, Engineering and Science. ENISE, St. Étienne, France.
Halmstad University, School of Business, Engineering and Science. ENISE, St. Étienne, France.
2018 (English)In: Surface Topography: Metrology and Properties, E-ISSN 2051-672X, Vol. 6, no 3, article id 034017Article in journal (Refereed) Published
Abstract [en]

The piston system accounts for about the half of the frictional losses of internal combustion engines and requires special testing methods to understand and improve its function. The most common way to screen the surface performance is to rub ring/liner segments against each other in a reciprocating manner. However, short reciprocating tests have intrinsic low sliding speeds, unable to reach the mixed/hydrodynamic regimes found in the engine, especially at the mid-stroke. This paper presents a rotating test for the oil control ring, which has the largest frictional losses of all other rings. Both reciprocating and rotating tests were conducted using different in-house developed modules and fixtures. Twin land oil control rings against liners with two different finishes commonly used in heavy duty diesel truck engines were tested under similar loads and speeds as in a real engine. Engine oil 5W-30 and room temperature was used for all the tests. Sliding speed, load, friction force and electrical resistance were recorded during the tests. The results show a clear discrimination of the different liner finishes depending on the lubrication regime present.

Place, publisher, year, edition, pages
Bristol: Institute of Physics Publishing (IOPP), 2018. Vol. 6, no 3, article id 034017
National Category
Tribology (Interacting Surfaces including Friction, Lubrication and Wear)
Identifiers
URN: urn:nbn:se:hh:diva-37819DOI: 10.1088/2051-672X/aad408ISI: 000441147700002OAI: oai:DiVA.org:hh-37819DiVA, id: diva2:1242765
Available from: 2018-08-29 Created: 2018-08-29 Last updated: 2018-08-29Bibliographically approved

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Dimkovski, Zlate

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The Rydberg Laboratory for Applied Sciences (RLAS)School of Business, Engineering and Science
Tribology (Interacting Surfaces including Friction, Lubrication and Wear)

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CiteExportLink to record
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  • apa
  • harvard1
  • ieee
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  • en-US
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  • nn-NB
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