HCCI load expansion opportunities using a fully variable HVA research engine to guide development of a production intent cam-based VVA engine: The low load limit

SAE Technical Papers

Volumn , Issue , 2012, Pages

  Weall, Adam ^a   Szybist, James P ^a   Edwards, K Dean ^a   Foster, Matthew ^b   Confer, Keith ^b   Moore, Wayne ^b  

^a OAK RIDGE NATIONAL LABORATORY   (United States)

^b DELPHI CORPORATION   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

CAMS; COMBUSTION; DIESEL ENGINES; EFFICIENCY; LOAD LIMITS; NITROGEN OXIDES;

COMBUSTION STABILITY; COMBUSTION TEMPERATURES; EFFICIENCY IMPROVEMENT; NATURALLY ASPIRATED ENGINE; NEGATIVE VALVE OVERLAP(NVO); SINGLE CYLINDER ENGINE; STOICHIOMETRIC AIR FUEL RATIO; VARIABLE VALVE ACTUATION;

ENGINE CYLINDERS;

EID: 85072505252     PISSN: 01487191     EISSN: 26883627     Source Type: Journal    
DOI: 10.4271/2012-01-1134     Document Type: Conference Paper

References (18)

1. Wermuth, N., Yun, H., and Najt, P., "Enhancing Light Load HCCI Combustion in a Direct Injection Gasoline Engine by Fuel Reforming During Recompression," SAE Int. J. Engines 2 (1): 823-836, 2009, doi: 10.4271/2009-01-0923.
2. Urushihara, T., Yamaguchi, K., Yoshizawa, K., and Itoh, T., "A Study of a Gasoline-fueled Compression Ignition Engine-Expansion of HCCI Operation Range Using SI Combustion as a Trigger of Compression Ignition," SAE Technical Paper 2005-01-0180, 2005, doi: 10.4271/2005-01-0180.
3. Yun, H., Wermuth, N., and Najt, P., "Extending the High Load Operating Limit of a Naturally-Aspirated Gasoline HCCI Combustion Engine," SAE Int. J. Engines 3 (1): 681-699, 2010, doi: 10.4271/2010-01-0847.
4. Szybist, J., Nafziger, E., and Weall, A., "Load Expansion of Stoichiometric HCCI Using Spark Assist and Hydraulic Valve Actuation," SAE Int. J. Engines 3 (2): 244-258, 2010, doi: 10.4271/2010-01-2172.
5. Manofsky, L., Vavra, J., Assanis, D., and Babajimopoulos, A., "Bridging the Gap between HCCI and SI: Spark-Assisted Compression Ignition," SAE Technical Paper 2011-01-1179, 2011, doi: 10.4271/2011-01-1179.
6. Dec, J., and Yang, Y., "Boosted HCCI for High Power without Engine Knock and with Ultra-Low NOx Emissions-using Conventional Gasoline," SAE Int. J. Engines 3 (1): 750-767, 2010, doi: 10.4271/2010-01-1086.
7. Dec, J., Yang, Y., and Dronniou, N., "Boosted HCCI-Controlling Pressure-Rise Rates for Performance Improvements using Partial Fuel Stratification with Conventional Gasoline," SAE Int. J. Engines 4 (1): 1169-1189, 2011, doi: 10.4271/2011-01-0897.
8. Dahl, D., Andersson, M., Berntsson, A., Denbratt, I., et al., "Reducing Pressure Fluctuations at High Loads by Means of Charge Stratification in HCCI Combustion with Negative Valve Overlap," SAE Technical Paper 2009-01-1785, 2009, doi: 10.4271/2009-01-1785.
9. Hendriksma, N., Kunz, T., and Greene, C., "Design and Development of a 2-Step Rocker Arm," SAE Technical Paper 2007-01-1285, 2007, doi: 10.4271/2007-01-1285.
10. Koopmans, L., Ogink, R., and Denbratt, I., "Direct Gasoline Injection in the Negative Valve Overlap of a Homogeneous Charge Compression Ignition Engine," SAE Technical Paper 2003-01-1854, 2003, doi: 10.4271/2003-01-1854.
11. Urushihara, T., Hiraya, K., Kakuhou, A., and Itoh, T., "Expansion of HCCI Operating Region by the Combination of Direct Fuel Injection, Negative Valve Overlap and Internal Fuel Reformation," SAE Technical Paper 2003-01-0749, 2003, doi: 10.4271/2003-01-0749.
12. Song, H., and Edwards, C., "Optimization of Recompression Reaction for Low-Load Operation of Residual-Effected HCCI," SAE Technical Paper 2008-01-0016, 2008, doi: 10.4271/2008-01-0016.
13. Song, H., Padmanabhan, A., Kaahaaina, N., and Edwards, C., "Experimental study of recompression reaction for low-load operation in direct-injection homogeneous charge compression ignition engines with n-heptane and i-octane fuels" International Journal of Engine Research August 1, 2009 vol. 10 no. 4 215-229, doi: 10.1243/14680874JER03309.
14. Aroonsrisopon, T., Nitz, D., Waldman, J., Foster, D., et al., "A Computational Analysis of Direct Fuel Injection During the Negative Valve Overlap Period in an Iso-Octane Fueled HCCI Engine," SAE Technical Paper 2007-01-0227, 2007, doi: 10.4271/2007-01-0227.
15. Waldman, J., Nitz, D., Aroonsrisopon, T., Foster, D., et al., "Experimental Investigation into the Effects of Direct Fuel Injection During the Negative Valve Overlap Period in an Gasoline Fueled HCCI Engine," SAE Technical Paper 2007-01-0219, 2007, doi: 10.4271/2007-01-0219.
16. Persson, H., Pfeiffer, R., Hultqvist, A., Johansson, B., et al., "Cylinder-to-Cylinder and Cycle-to-Cycle Variations at HCCI Operation With Trapped Residuals," SAE Technical Paper 2005-01-0130, 2005, doi: 10.4271/2005-01-0130.
17. Moore, W., Foster, M., Lai, M., Xie, X., et al., "Charge Motion Benefits of Valve Deactivation to Reduce Fuel Consumption and Emissions in a GDi, VVA Engine," SAE Technical Paper 2011-01-1221, 2011, doi: 10.4271/2011-01-1221.
18. Mittal, M., Hung, D., Zhu, G., and Schock, H., "High-Speed Flow and Combustion Visualization to Study the Effects of Charge Motion Control on Fuel Spray Development and Combustion Inside a Direct-Injection Spark-Ignition Engine," SAE Int. J. Engines 4 (1): 1469-1480, 2011, doi: 10.4271/2011-01-1213.