With the ever increasing demand on lubricant manufacturers to improve fuel economy, fuel economy retention and increase the drain intervals of their lubricants there is an increasing need to understand which factors effect the degradation of the lubricant in the sump. The harsh conditions in the ring pack have been shown to be responsible for the majority of the lubricant degradation in the engine. Therefore in this investigation the flow rate of lubricant through, and residence time of lubricant in, the top ring zone of a gasoline engine with respect to load and speed has been experimentally measured. An initial effect of the lubricant viscosity on these parameters has also been investigated. The theory and experimental methods are described before the experimental results are presented and discussed. The work has shown that the overall effect of engine speed on sump lubricant degradation is nominal, and that the level of sump degradation increases with increasing engine load.
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ASME 2009 Internal Combustion Engine Division Spring Technical Conference
May 3–6, 2009
Milwaukee, Wisconsin, USA
Conference Sponsors:
- Internal Combustion Engine Division
ISBN:
978-0-7918-4340-6
PROCEEDINGS PAPER
The Study of Residence Time and Flow Rate of Lubricating Oil Through the Top Ring Zone of a Gasoline Engine Available to Purchase
Martin Priest,
Martin Priest
University of Leeds, Leeds, UK
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Robert Ian Taylor
Robert Ian Taylor
Shell Global Solutions (UK), Chester, UK
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Peter M. Lee
University of Leeds, Leeds, UK
Martin Priest
University of Leeds, Leeds, UK
Moray Stark
University of York, York, UK
Robert Ian Taylor
Shell Global Solutions (UK), Chester, UK
Paper No:
ICES2009-76134, pp. 793-801; 9 pages
Published Online:
August 20, 2009
Citation
Lee, PM, Priest, M, Stark, M, & Taylor, RI. "The Study of Residence Time and Flow Rate of Lubricating Oil Through the Top Ring Zone of a Gasoline Engine." Proceedings of the ASME 2009 Internal Combustion Engine Division Spring Technical Conference. ASME 2009 Internal Combustion Engine Division Spring Technical Conference. Milwaukee, Wisconsin, USA. May 3–6, 2009. pp. 793-801. ASME. https://doi.org/10.1115/ICES2009-76134
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