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Stoichiometric Compression Ignition (SCI) Engine
Technical Paper
2007-01-4224
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Experimental investigations were conducted on a novel, Stoichiometric Compression Ignition (SCI) combustion system designed to operate a diesel engine at stoichiometric equivalence ratios. Development of such a combustion concept offers the potential to retain the advantages of the diesel cycle while combining simple, reliable three-way catalyst technology for NOx control. Traditionally, operation of a diesel engine at near stoichiometric equivalence ratios has resulted in excessive particulate matter (PM) emissions due to the heterogeneous, stratified nature of diesel combustion in conjunction with reduced A/F ratios. However, development of the SCI combustion concept has displayed the potential to reduce PM emissions at stoichiometric equivalence ratios to levels manageable by a diesel particulate filter (DPF). Nitrogen Oxides (NOx) emissions would meet Final Tier 4 standards, assuming conservative three-way catalyst conversion efficiencies are obtainable. Preliminary results indicate the potential to efficiently meet upcoming emissions standards without the use of complicated NOx aftertreatment systems such as Selective Catalytic Reduction (SCR) or Lean NOx Trap (LNT).
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Authors
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Citation
Chase, S., Nevin, R., Winsor, R., and Baumgard, K., "Stoichiometric Compression Ignition (SCI) Engine," SAE Technical Paper 2007-01-4224, 2007, https://doi.org/10.4271/2007-01-4224.Also In
References
- Lee, S. Gonzalez, M.A. Reitz, R.D. “Stoichiometric Combustion in a HSDI Diesel Engine to Allow Use of a Three-way Exhaust Catalyst,” SAE 2006-01-1148 2006
- Lee, S. Gonzalez D., M.A. Reitz, R.D. “Effects of Engine Operating Parameters on near Stoichiometric Diesel Combustion Characteristics” SAE Paper 2007-01-0121 2007
- Nabi, M.N. Minami, M. Ogawa, H. Miyamoto, N. “Ultra Low Emission and High Performance Diesel Combustion with Highly Oxygenated Fuel” SAE Paper 2000-01-0231 2000
- Akihama, K. Takatori, Y. Inagaki, K. Sasaki, S. Dean, A.M. “Mechanism of the Smokeless Rich Diesel Combustion by Reducing Temperature,” SAE 2001-01-0655 2001
- Wagner, R. Green, J. Dam, T. Edwards, K. Storey, J, “Simultaneous Low Engine-Out NO x and Particulate Matter with Highly Diluted Diesel Combustion,” SAE Paper No. 2003-01-0262 2003
- Sluder, C. Wagner, R. Lewis, S. Storey, J. “Exhaust Chemistry of Low-NO x , Low-PM Diesel Combustion,” SAE Paper No. 2004-01-0114 2004
- Pickett, L. Siebers, D. “Non-Sooting, Low Flame Temperature Mixing-Controlled DI Diesel Combustion,” SAE Paper No. 2004-01-1399 2004
- Kook, S. Bae, C. Miles, P. Choi, D. Pickett, L. “The Influence of Charge Dilution and Injection on Low-Temperature Diesel Combustion and Emissions,” SAE Paper No. 2005-01-3837 2005
- Idicheria, C. Pickett, L. “Soot Formation in Diesel Combustion under High-EGR Conditions,” SAE Paper No. 2005-01-3834 2005
- Pickett, L. 2005 “Low Flame Temperature Limits for Mixing-Controlled Diesel Combustion,” Combustion Institute 30 2727 2735
- Heywood, John B. “Internal Combustion Engine Fundamentals,” McGraw-Hill Press 1988
- van Basshuysen, Richard “Internal Combustion Engine Handbook,” SAE International 2004