Yes / A laser induced fluorescence system has been developed to visualise the oil film thickness between
the piston ring and cylinder wall of a fired gasoline engine via a small optical window mounted in the
cylinder wall. A fluorescent dye was added to the lubricant in the sump to allow the lubricant to
fluoresce when absorbing laser radiation. The concentration of the dye did not disturb the lubricant
chemistry or its performance. Degraded engine oil samples were used to investigate the influence of
lubricant quality on ring pack lubricant film thickness measurements. The results show significant
differences in the lubricant film thickness profiles for the ring pack when the lubricant degrades which
will affect ring pack friction and ultimately fuel economy.
| Identifer | oai:union.ndltd.org:BRADFORD/oai:bradscholars.brad.ac.uk:10454/16583 |
| Date | 19 August 2018 |
| Creators | Notay, Rai S., Priest, Martin, Fox, M.F. |
| Source Sets | Bradford Scholars |
| Language | English |
| Detected Language | English |
| Type | Article, Accepted Manuscript |
| Rights | (c) 2019 Elsevier. This article is distributed under the Creative Commons CC-BY-NC-ND license. |
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