NDLI: Fuel economy opportunities for internal combustion engines by means of oil-cooling

Content Provider	Springer Nature Link
Author	Ma, C. F. Li, J. C. Qin, W. X. Wei, Z. Y. Chen, J.
Copyright Year	1992
Abstract	Comparative experiments of oil and water-cooling were performed on a 4-cylinder automotive gasoline engine and a single-cylinder direct injection Diesel engine. Measurements were made to investigate the variation of fuel consumption, combustor wall temperature and engine emissions (HC, CO, NO$_{x}$ and smoke) with two cooling media at steady-state conditions. Significant improvement of fuel economy was found mainly at partial load conditions with oil-cooling in comparison with the baseline water-cooling both for the two engines. The experimental results also showed general trend of reduction in engine emissions using oil as the coolant. Measurements of wall temperature demonstrated that oil-cooling resulted in considerable increase of the combustor wall temperature and reduce of warm-up period in starting process. For automotive gasoline engine, road tests indicated the same trend of fuel economy improvement with oil-cooling. The performance of the automotive oil-cooled engine was further improved by internal cooling with water or methanol injection.
Starting Page	132
Ending Page	140
Page Count	9
File Format	PDF
ISSN	10032169
Journal	Journal of Thermal Science
Volume Number	6
Issue Number	2
e-ISSN	1993033X
Language	English
Publisher	Science Press
Publisher Date	1992-01-01
Publisher Place	Beijing
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	internal combustion engines oil cooling internal cooling Mechanics, Fluids, Thermodynamics Engineering Fluid Dynamics Engineering Thermodynamics, Transport Phenomena
Content Type	Text
Resource Type	Article
Subject	Condensed Matter Physics

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