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Analysis of Mixture Formation of Direct Injection Gasoline Engine
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English
Abstract
Direct injection gasoline engines require extremely advanced control of air-fuel mixture in order to achieve good stratified combustion. The method of examining quality of mixture formation in combustion chambers is essential for the achievement. In this research, air-fuel mixture in combustion chamber of the TOYOTA D-4 engine was analyzed in space and time by visualization as well as Air/Fuel ratio measurement by multi-point and high response techniques. Thus the effects that injection timing, swirl and fuel pressure exerted to mixture formation were elucidated. For realizing good stratified combustion, the following were identified as necessary:
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1.
to select the optimized timing interval between injection and ignition at which the Air/Fuel ratio near the ignition plug at ignition can be maintained at 10 to 20
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2.
to control swirl intensity accurately corresponding to engine operating conditions, in order to guide air fuel mixture to ignition plug without dispersing the mixture
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3.
to allow spray to follow swirl flow by 15 μm droplet size with 12 MPa fuel pressure
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Kano, M., Saito, K., Basaki, M., Matsushita, S. et al., "Analysis of Mixture Formation of Direct Injection Gasoline Engine," SAE Technical Paper 980157, 1998, https://doi.org/10.4271/980157.Also In
References
- Giovanetti A. J. et. al. “Analysis of Hydrocarbon Emissions Mechanisms in a Direct Injection Spark-ignition Engine” SAE 830587 1983
- Balles E. N. et. al. “Fuel Injection Characteristic and Combustion Behavior of a Direct-Injection Stratified-Charge Engine” SAE 841379 1984
- Lewis J. M. “UPS Multifuel Stratified Charge Engine Development Program-Field Test” SAE 860067 1986
- Siewert R. M. et. al. “Unassisted Cold Starts to -29°C and Steady-State Tests of a Direct-injection Stratified-Charge (DISC) Engine Operated on Neat Alcohols” SAE 872066 1987
- Frank R. M. et. al. “Combustion Characterization in a Direct-injection Stratified-Charge Engine and Implications on Hydrocarbon Emissions” SAE 892058 1989
- Schapertons H. et. al. WW's Gasoline Direct Injection (GDI) Research Engine” SAE 910054 1991
- Spiegel L. et. al. “Mixture Formation and Combustion in a Spark Ignition Engine with Direct Fuel Injection” SAE 920521 1992
- Kagawa R. et. al. “A Study of a Direct- Injection Stratified-Charge Rotary Engine for Motor Vehicle Application” SAE 930677 1993
- Lake T. H. et. al. “Preliminary Investigation of Solenoid Activated In-cylinder Injection in Stoichiometric S.I. Engines” SAE 940483 1994
- Ohyama Y. et. al. “A New Engine Control System Using Direct Fuel Injection and Variable Valve Timing” SAE 950973 1995
- Fraidl G. K. et. al. “Gasoline Direct Injection Actual Trends and Future Strategies for Injection and Combustion Systems” SAE 960465 1996
- Kume T. et. al. “Combustion Control Technologies for Direct Injection Sl Engine” SAE 960600 1996
- Harada J. et. al. “Development of Direct Injection Gasoline Engine” SAE 970540 1997
- Iwamoto Y. et. al. “Development of Gasoline Direct Injection Engine” SAE 970541 1997
- Ohsuga M. et. al. “Mixture Preparation for Direct Injection Sl Engines” SAE 970542 1997
- Jackson N. S. et. al. “Stratified and Homogeneous Charge Operation for Direct Injection Gasoline Engine-High Power with Low Fuel Consumption and Emissions” SAE 970543 1997
- Meyer J. et. al. “Spray Visualization of AirAssisted Fuel Injection Nozzles for Direct Injection SI-Engines” SAE 970623 1997
- Karl G. et. al. “Analysis of a Direct Injected Gasoline Engine” SAE 970624 1997
- Han Z. et. al. “Effects of Injection Timing on AirFuel Mixing in a D irect- Injection Spark-ignition Engine” SAE 970625 1997
- Mick J. et. al. “Numerical Prediction of Charge Distribution in a Lean Burn Direct-Injection Spark Ignition Engine” SAE 970626 1997
- Pontoppidan M. et. al. “Direct Fuel Injection -A Study of Injector Requirements for Different Mixture Preparation Concepts” SAE 970628 1997
- Bowditch F. W. “A New Tool for Combustion Research A Quartz Piston Engine” SAE Transactions 69 17 23 1961
- Saito K. et. al. “Analysis of Oil Consumption by Observing Oil Behavior Using a Glass Cylinder Engine” SAE982107 1989
- Saito K. et. al. “A New Method to Analyze Fuel Behavior in a Spark Ignition Engine” SAE 950044 1995
- Rose D. et. al. “In-Cylinder Mixture Excursions in a Port-injected Engine During Fast Throttle Opening” SAE 940382 1994
- Summers T. et. al. “Modeling the Transit Time of a Fast Response Flame Ionization Detector During In-Cylinder Sampling” SAE 950160 1995
- Henein N. A. et. al. “Cycle-by-Cycle Analysis of HC Emissions During Cold Start of Gasoline Engines” SAE 952402 1995
- Summers T. et. al. “Signal Reconstruction Applied to a Fast Response Flame Ionization Detector” SAE 952541 1995