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Application of Heavy Duty Diesel Engine to Future Emission Standards
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English
Abstract
Future emission standards for heavy duty diesel engines will require extensive development using an integrated approach. This paper describes the latest results from HINO heavy duty diesel engine combustion research program.
Improvement of the NOx/particulate/fuel economy trade off requires fuel injection equipment of Pump Line Nozzle (PLN) System and unit injector with high pressure capability, injection rate control and timing control, and a combustion system matched with high pressure injection.
Combustion characteristics (ignition delay, combustion period, heat release curve), fuel consumption, particulate, and exhaust gas emission of each injection system are compared and discussed.
The unit injector system has an advantage of lower particulate level, especially dry soot, than the Pump Line Nozzle system.
The potential for further improvement through engine modification and aftertreatment is also discussed.
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Shimoda, M., Funai, K., Shimokawa, K., Otani, T. et al., "Application of Heavy Duty Diesel Engine to Future Emission Standards," SAE Technical Paper 910482, 1991, https://doi.org/10.4271/910482.Also In
References
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- Kamimoto T. et al “Effect of High Pressure Injection on Soot Formation Process in a Rapid Compression Machine to Simulate Diesel Spray” SAE 871610
- Shimoda Masatoshi etal “Observation of the Particulate Formation Process in the Cylinder of a Direct Injection Diesel Engine” SAE Paper 870268
- Wall J.C. et al “Fuel Composition Effect of Heavy Duty Diesel Particulate Emissions” SAE 841364