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TECHNICAL PAPERS: Injection and Fuel Air Mixture Preparation

The Formation of a Combustible Mixture During the First Cycle of Cranking and Startup in a Port-Fuel-Injected Spark-Ignition Engine

[+] Author and Article Information
J. S. Cowart

Department of Mechanical Engineering, University of Connecticut, Storrs, CT 06269-3139

J. Eng. Gas Turbines Power 125(2), 402-411 (Apr 29, 2003) (10 pages) doi:10.1115/1.1563237 History: Received March 01, 2002; Revised July 01, 2002; Online April 29, 2003
Copyright © 2003 by ASME
Topics: Fuels , Engines , Cycles , Cylinders , Vapors
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References

Saito, K., Sekiguti, K., Imatake, N., Takeda, K., Yaegashi, T., 1995, “A New Method to Analyze Fuel Behavior in an SI Engine,” SAE Paper No. 950044.
Shin, Y., Min, K. D., and Cheng, W. K., 1995, “Visualization of Mixture Preparation in a Port Fuel Injected Engine during Engine Warm-up,” SAE Paper No. 952481.
Imatake, N., Saito, K., Morishima, S., Kudo, S., and Ohhata, A., 1997, “Quantitative Analysis of Fuel Behavior in Port-Injection Gasoline Engines,” SAE Paper No. 971639.
Stanglmaier, R. H., Hall, M. J., and Mattews, R. D., 1997, “In-Cylinder Fuel Transport During the First Cranking Cycles in a Port Injected 4-Valve Engine,” SAE Paper No. 970043.
Koenig, M. H., Stanglmaier, R. H., Hall, M. J., and Matthews, R. D., 1997, “Mixture Preparation During Cranking in a Port-Injected 4-Valve SI Engine,” SAE Paper No. 972982.
Shayler,  P. J., Issacs,  R. M., and Ma,  T. H., 1992, “The Variation of In-Cylinder Ratio During Engine Cranking at Low Ambient Temperatures,” Proc. Inst. Mech. Eng., 206, pp. 55–62.
Shin, Y., Cheng, W. K., and Heywood, J. B., 1994, “Liquid Gasoline Behavior in the Engine Cylinder of a SI Engine,” SAE Paper No. 941872.
Shin, Y., Min, K. D., and Cheng, W. K., 1995, “Visualization of Mixture Preparation in a Port Fuel Injection Engine During Engine Warm-up,” SAE Paper No. 952481.
Fox, J. W., Min, K. D., Cheng, W. K., and Heywood, J. B., 1992, “Mixture Preparaation in a SI Engine With Port Fuel Injection During Starting and Warm-up,” SAE Paper No. 922170.
Whelan, D. E., Kelly-Zion, P. L., Lee, C. F., Peters, J. E., and White, R. A., 1997, “Back-Flow Atomization in the Intake Port of Spark Ignition Engines,” SAE Paper No. 972988.
Nagaishi, H., Miwa, H., Kawamura, Y., and Saitoh, M., 1989, “An Analysis of Wall Flow and Behavior of Fuel in Induction Systems of Gasoline Engines,” SAE Paper No. 890837.
Almkvist, G., Denbratt, I., Josefsson, G., and Magnusson, I., 1995, “Measurements of Fuel Film Thickness in the Inlet Port of a SI Engine by Laser Induced Fluorescence,” SAE Paper No. 952483.
Koenig, M. H., and Hall, M. J., 1998, “Cycle-Resolved Measurements of Pre-Combustion Fuel Concentration Near the Spark Plug in a Gasoline SI Engine,” SAE Paper No. 981053.
Meyer, R., and Heywood, J. B., 1999, “Effect of Engine and Fuel Variables on Liquid Fuel Transport Into the Cylinder in Port-Injected SI Engines,” SAE Congress.
Senda, J., Ohnishi, M., Takahashi, T., Fujimoto, H, Utsunomiya, A., and Wakatabe, M., 1999, “Measurement and Modeling on Wall Wetted Fuel Film Profile and Mixture Preparation in Intake Port of SI Engine,” SAE Paper No. 99010789.
Witze, P. O., 1999, “Diagnostics for the Study of Cold Start Mixture Preparation in a Port Fuel Injected Engine,” SAE Paper No. 99011108.
Koederitz, K. R., and Drallmeier, J. A., 1999, “Film Atomization From Valve Surfaces during Cold Start,” SAE Paper No. 1999010566.
Servati, H. B., and Herman, E. W., 1989, “Spray/Wall Interactions Simulation,” SAE Paper No. 890566.
Chen, G., Vincent, M. T., and Gutermuth, T. R., 1994, “The Behavior of Multiphase Fuel-Flow in the Intake Port,” SAE Paper No. 940445.
O’Rouke, P. J., and Amsden, A. A., 1996, “A Particle Numerical Model for Wall Film Dynamics in Port-Injected Engines,” SAE Paper No. 961961.
Maroteaux, F., and LeMoyne, L., 1995, “Modeling of Fuel Droplets Deposition Rate in Port Injected SI Engines,” SAE Paper No. 952484.
Schurov, S. M., and Collings, N., 1994, “A Numerical Simulation of Intake Port Phenomena in a SI Engine Under Cold Starting Conditions,” SAE Paper No. 941874.
Naber, J. D., and Reitz, R. D., 1988, “Modeling Engine Spray/Wall Impingment,” SAE Paper No. 880107.
Miyagawa, H., Nagaoka, M., Akihama, K., and Fujikawa, T., 1999, “Numerical Analysis on Multi-component Fuel Behaviors in a Port-Injected Gasoline Engine,” SAE Paper No. 99013642.
Nagaoka, M., Ohsawa, K., Crary, B., Yamada, T., Sugiura, S., and Imatake, N., 1997, “Numerical Analysis of Fuel Behavior in a Port-Injection Gasoline Engine,” SAE Paper No. 970878.
Curtis, E. W., Aquino, C. F., Trumpy, D. K., and Davis, G. C., 1996, “A New Port and Cylinder Wall Wetting Model to Predict Transient A/F Excursions in a PFI Engine,” SAE Paper No. 961186.
Castaing, B. M. P., Cowart, J. S., and Cheng, W. K., 2000, “Fuel Metering Effects on HC Emissions and Engine Stability During Cranking and Startup in a PFI SI Engine,” SAE Paper No. 00FL-0693, SAE Fall Fuels and Lubricants Meeting, Baltimore, MD.
Cowart, J. S., and Cheng, W. K., 1999, “Intake Valve Thermal Behavior During Steady-State and Transient Operation,” SAE Paper No. 99013643.
Cowart, J. S., and Cheng, W. K., 2000, “Throttle Movement Rate Effects on Transient Fuel Compensation in a Port Fuel Injected SI Engine,” SAE Paper No. 2000-01-1937.
Cowart, J. S., 2000, “Mixture Preparation Behavior in Port Fuel Injected Spark Ignition Engines During Transient Operation,” Ph.D. thesis, M.I.T., Cambridge, MA.
Cheng,  W. K., Summers,  T., and Collings,  N., 1998, “The Fast Response Flame Ionization Detector,” Prog. Energy Combust. Sci., 24, pp. 89–124.
Shayler,  P. J., Issacs,  R. M., and Ma,  T. H., 1992, “The Variation of In-Cylinder Ratio During Engine Cranking at Low Ambient Temperatures,” Proc. Inst. Mech. Eng., 206, pp. 55–62.
Curtis, E., 1999, personal communication.
Incropera, F. P., and DeWitt, D. P., Fundamentals of Heat and Mass Transfer, John Wiley and Sons, New York.
Mills, A. F., 1996, Heat and Mass Transfer, Prentice-Hall, Englewood Cliffs, NJ.
Spalding, D. B., 1979, Combustion and Mass Transfer, Pergamon Press, Tarrytown, NY.
Rosin,  P., and Rammler,  E., 1993, J. Inst. Fuel, 7, p. 29.
Fraser, R. P., Dombrowski, N., and Routley, J. H., 1963, “The Atomization of a Liquid Sheet by an Impinging Air Stream,” Chemical Engineering Science, Pergamon Press Oxford, UK, 18 , pp. 339–353.

Figures

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Engine starting positions for cylinder #4
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Characteristic ambient engine start from initial position C
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Reformulated gasoline distillation curve with six specie multicomponent fuel model shown
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Base model comparison with experimental data at various starting positions. Both hot and ambient start results are shown.
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A simulated hot start at position A. The fraction of each fuel specie that remains in the puddle during the first engine cycle is shown.
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Model predicted injection mass necessary for stoichiometric in-cylinder fueling from 20–100°C starting temperature
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Comparison of model results to production engine calibrations and Zetec experimental data
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Position A hot start experimental data and modeling results
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Position A hot start modeling details with crevice pooling occurring at mid-high fuel injection levels
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A schematic representation of the intake port during (1) stoichiometric and lean fueling, (2) rich fueling with crevice, and (3) excessively rich fueling during hot starting
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Hot start model comparison to data at positions D and E
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Ambient starting model comparison to experimental data at position A
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Conduction length into a liquid fuel film initially at 20°C from a wall at 90°C versus time. Estimated deep crevice depths are also shown.

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