Fuel economy opportunities with an uncooled Dl diesel engine 841286
An experimental, uncooled, single cylinder DI Diesel engine with ceramic coated cylinder head and valves, a heat insulated steel topped piston and a short, partially stabilized zirconia cylinder liner in the area above the piston rings provided 4 to 7% improvement in fuel consumption at operating conditions typical of the EPA CVS driving cycle for light duty vehicles relative to the baseline water-cooled engine. An engine simulation model was used to explain the measured improvements in fuel consumption. Generally, the uncooled engine provided reductions in HC, NOx and particulate emissions. The trend of lower HC and NOx emissions was explained by the reduction in the amount of premixed combustion resulting from the shortened ignition delay period. The trend of lower particulate emissions was explained by an increase in the diffusion combustion rate. Reduced rates of pressure rise for the uncooled engine were projected to result in lower noise levels.
Citation: WADE, W., HAVSTAD, P., OUNSTED, E., TRINKER, F. et al., "Fuel economy opportunities with an uncooled Dl diesel engine," SAE Technical Paper 841286, 1984, https://doi.org/10.4271/841286. Download Citation
Author(s):
W R WADE, P H HAVSTAD, E J OUNSTED, F H TRINKER, I J GARWIN
Affiliated:
Ford Motor Company, Dearborn, Michigan, USA
Pages: 14
Event:
International Conference on Fuel Efficient Power Trains and Vehicles
ISSN:
0148-7191
e-ISSN:
2688-3627
Also in:
Advances in Adiabatic Engines-SP-0610, Vecon 84-Fuel Efficient Power Trains and Vehicles-P-150, SAE 1984 Transactions-V93-84
Related Topics:
Diesel / compression ignition engines
Nitrogen oxides
Particulate matter (PM)
Fuel consumption
Fuel economy
Combustion and combustion processes
Engine cylinders
Pistons
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