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Effects of Fuel Properties and Engine Design Features on the Performance of a Light-Duty Diesel Truck - A Cooperative Study
ISSN: 0148-7191, e-ISSN: 2688-3627
Published October 01, 1986 by SAE International in United States
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A cooperative research program has been completed evaluating the relative impact of fuel composition and engine design features on the emissions and fuel economy of a Toyota light-duty diesel truck. The fuel set was blended from commercially available refinery stocks and consisted of eight fuels with independently varying 10% and 90% distillation temperatures and aromatic content. The engine design variables included two compression ratios and three injector types with different fuel flow characteristics, and three injection timings.
The main fuel effects observed were increasing hydrocarbon and particulate emissions with increasing aromatic content and, to a much lesser degree, increasing emissions with increasing 10% and 90% point. Changing from the standard fuel injectors to the reference injectors, which had both a higher nozzle opening pressure and a higher initial fuel flow rate, resulted in a substantial reduction in all emissions and improvements in fuel economy. However, these injector changes did not completely eliminate the effects of fuel composition.
Overall, decreasing the engine's compression ratio from 21.5:1 CR to 18:1 CR resulted in increased emissions but improved fuel economy. Hence the choice of compression ratio for the engine represents a tradeoff between fuel economy and vehicle emissions.
Steadily increasing emission levels were found with mileage accumulation with the very high aromatic content fuel and the standard injectors. Advancing the timing 6° provided some improvement, and the injector changes substantially reduced this mileage effect.
CitationBarry, E., Axelrod, J., McCabe, L., Inoue, T. et al., "Effects of Fuel Properties and Engine Design Features on the Performance of a Light-Duty Diesel Truck - A Cooperative Study," SAE Technical Paper 861526, 1986, https://doi.org/10.4271/861526.
Data Sets - Support Documents
|Unnamed Dataset 1|
- Burley H. A. Rosebrock T. L. “Automotive Diesel Engines - Fuel Composition Vs Particulates,” SAE Fuels and Lubricants Meeting Paper 790923 October 1979
- Bouffard R. A. Beltzer M. “Light Duty Diesel Particulate Emissions -- Fuel and Vehicle Effects,” SAE Fuels and Lubricants Meeting Paper 811191 October 1981
- “Investigation of the Effects of Fuel Composition and Injection and Combustion System Type on Light-Duty Diesel Exhaust Emissions,” CRC Project CAPE-32-80
- Barry E. G. Hills F. J. McCabe L. J. “Diesel Fuel Availability, Trends and Performance,” SAE Fuels and Lubricants Meeting, Paper 790921 October 1979
- Strange H. O. “Diesel Fuel Quality and Trends,” NPRA Fuels and Lubricants Meeting November 1982
- Hills F. J. Schleyerbach C. G. “Diesel Fuel Properties and Engine Performance,” SAE International Automotive Engineering Congress Paper 770316 March 1977
- Schleyerbach C. G. “The Influence of Increasing the Final Boiling Point of Middle Distillate on the Performance of Diesel Equipment and Heating Installations,” 23rd Annual Meeting of the German Association for Oil Research and Coal Chemistry (DGMK) Hamburg, Germany 1974
- Carpenter P. R. Daniel G. Portail C. Schleyerbach C. “Middle Distillate with a Very High End Point, Their Properties and Suitability for Use as Diesel Fuel and Heating Oil,” 26th Annual Meeting DGMK Berlin, Germany October 1978
- Barry E. G. Portail C. Schwindeman W. R. “Impact of the Diesel Passenger Car on European Refining and Fuel Quality,” Conference on Energy Utilization, Societe des Ingenieurs de l'Automobile Paris, France 1976
- Code of Federal Regulations, Part 86, Federal Register 24 124 June 28 1977