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Contribution of Different Diesel Fuel Injection Systems to Engine Out Emissions
Technical Paper
2011-28-0058
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Diesel engine manufacturers use various approaches to meet stringent emission standards. These approaches vary from advanced in-cylinder emission reduction strategies to sophisticated after-treatment solutions. Fuel injection system plays a very critical role in the design of a fuel efficient engine that complies with emission regulations. This paper highlights a comparison of common rail (CR) vs. amplified injection (AI) fuel systems on engine out emissions. The study was conducted on a four stroke, six-cylinder, turbocharged diesel engine using cooled exhaust gas recirculation (EGR). Both the CR and AI fuel systems were tested on the same engine hardware. The maximum injection pressure of multiple shot capable CR and single shot capable AI fuel systems are 2000 bar and 2700 bar respectively. Emission results are summarized at two critical steady state points. Higher injection pressure in the simplified AI fuel system shows a potential alternative to exceed the maximum injection pressure limits of CR fuel system for the same engine performance envelope. The NOx to soot trade off window with AI fuel system allows for lowering emissions with higher injection pressure. Nozzle spray geometry is an important factor in reducing emissions at higher injection pressure with an AI fuel system.
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Martin, S., Bhargava, S., and Singh, D., "Contribution of Different Diesel Fuel Injection Systems to Engine Out Emissions," SAE Technical Paper 2011-28-0058, 2011, https://doi.org/10.4271/2011-28-0058.Also In
References
- Heywood, J.B. Internal Combustion Engine Fundamentals McGraw-Hill New York 1988
- Herzog, P.L. Burgler, L. Winklhofer, E. Zelenka, P. Cartellieri, W. NOx reduction strategies for DI diesel engines SAE paper 920470 1992
- Erlach, H. Chmela, F. Cartellieri, W. Herzog, P. Pressure modulated injection and its effect on combustion and emissions of a HD diesel engine SAE paper 952059 1995
- Needham, J.R. May, M. P. Doyle, D. M. Faulkner, S. A. Ishiwata, H. Injection timing and rate control-a solution for low emissions SAE paper 900854 1990
- Hountalas, D.T. Kouremenos, D. A. G. C. Binder, K. B. Schwarz, V. Multi-zone combustion modeling as a tool for DI diesel engine development - application for the effect of injection pressure SAE Technical Paper 2004-01-0115
- Dober, G. Tullis, S. Greeves, G. Milovanovic, N. Hardy, M. Zuelch, S. The impact of injection strategies on emissions reduction and power output of future diesel engines SAE Technical Paper 2008-01-0941
- Parche, M. Sassen, K.P. Alvarez-Avila, C. “Bosch 2000/2200 bar common rail system for commercial vehicles” Proceedings of the 31st Vienna Motor Symposium VDI Verlag GmbH Düsseldorf, Germany
- Nehmer, D.A. Reitz, R.D. Measurement of the effect of injection rate and split injections on diesel engine soot and NOx emissions SAE paper 940668 1994
- Tow, T.C. Pierpont, D.A. Reitz, R.D. Reducing particulate and NOx emissions by using multiple injections in a heady duty DI diesel engine SAE paper 940897 1994
- Zhang, L. A study of pilot injection in a DI diesel engine SAE paper 1999-01-3493 1999
- Chen, S.K. Simultaneous reduction of NOx and particulate emissions by using multiple injections in a small diesel engine SAE paper 2000-01-3084 2000