Effects of a Cylinder Liner Microstructure on Lubrication Condition of a Twin-Land Oil Control Ring and a Piston Skirt of an Internal Combustion Engine
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11249_2021_1546_ReferencePDF.pdf
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Author(s)
Kikuhara, Koji
Koeser, Philipp S.
Tian, Tian
Date Issued
December 10, 2021
Publisher
Springer US
Citation
Tribology Letters. 2021 Dec 10;70(1):6
Version
Author's final manuscript
Abstract
Abstract
It is hypothesized that structured sliding-surfaces improve the lubrication condition by forming an oil sump on the sliding surface, redistributing the oil, and trapping wear debris. For these reasons, structured sliding-surfaces have been used as a friction reduction method for a long time. In this work, effects of microstructure laid on the cylinder liner of an internal combustion engine on twin-land oil control ring (TLOCR) and piston skirt lubrication condition were investigated by comparing friction between a conventional fine-honed liner (CFL) and a micro-structured liner with the CFL. The measurements using a floating liner engine showed that the microstructure improved lubrication condition by reducing hydrodynamic friction. On the other hand, it was also observed that the microstructure could result in elevated friction under certain engine operating conditions.
Graphical Abstract
MIT Department
Massachusetts Institute of Technology. Department of Mechanical Engineering
Sloan Automotive Laboratory
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Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
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DOI of Published Version
https://doi.org/10.1007/s11249-021-01546-3
