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The Influence of a Late In-Cylinder Air Injection on In-Cylinder Flow Measured with Particle Image Velocimetry (PIV)
Technical Paper
2001-01-3492
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
During development of an air assisted, direct injection combustion system, it was found that an air pulse during the late part of compression stroke significantly shortened the combustion duration and extended the lean limits of the engine.
The effect of an injection of pure air through an air assist direct injector was studied with Particle Image Velocimetry, PIV.
Results showed that an air pulse during the compression stroke significantly speeded up in-cylinder velocities, which also was showed in the heat release analysis.
A system to use low density seeding particles was developed and is presented in the paper.
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Citation
Ekenberg, M., Reinmann, R., Olofsson, E., Gillet, B. et al., "The Influence of a Late In-Cylinder Air Injection on In-Cylinder Flow Measured with Particle Image Velocimetry (PIV)," SAE Technical Paper 2001-01-3492, 2001, https://doi.org/10.4271/2001-01-3492.Also In
References
- Spicher, U. et. al. “Gasoline Direct Injection (GDI) engines-Development Potentialities”. SAE 1999-01-2938
- Dodge, L. G. “Fuel Preparation Requirements for Direct-Injected Spark-Ignition Engines”. SAE 962015
- Yoon, Kum-Yung et. al. “An Experimental Comparison Between Air-Assisted Injection System an High Pressure Injection System at 2-Stroke Engine”. SAE 950270
- Houston, R. et. al. “Combustion and Emission Characteristics of Orbital's Combustion Process Applied to Multi-Cylinder Automotive DirectInjected 4-Stroke Engines”. SAE 980153
- Houston, R. et al. “Direct Injection 4-Stroke Gasoline Engines, the Orbital Combustion Process Solution”, http://www.orbeng.com.au/tech/imec_97.htm
- Salters, D. et. al. “Fuel Spray Characterisation Within an optically Accessed Gasoline Direct Injection Engine Using a CCD Imaging System” SAE 961149
- Nogi, T. “Stability Improvement of Direct Fuel Injection Engine under Lean Combustion Operation” SAE 982703
- Depussay, E. et. al. “Comparative Measurements of Local Iso-Octane Concentrations by Planar Laser Induced Fluorescence and Catalytic Hot Wires Probe in SI Engine” SAE 982474
- Fansler,T. D. et. al. “Fuel Distributions in a Firing Direct-Injection Spark Ignition Engine Using Laser Induced Fluorescence Imaging” SAE 950110
- Bowditch, F.W, “A new Tool for Combustion Research A Quartz Piston Engine”
- Neij, H. et al. “Development and Demonstration of 2D-LIF for Studies of Mixture Preparation in SI Engines” Combustion and Flame 99:449-457, 1994
- Johansson, B. et al. “Investigations of the Influence of Mixture Preparation on Cyclic Variation in a SI-Engine, Using Laser Induced Fluorescence”, SAE 950108
- Reuss “Cyclic Variability of Large-Scale Turbulent Structures in Directed and an Undirected IC Engine Flow” SAE 2000-01-0246
- Olofsson et al “A High Dilution Stoichiometric Combustion Concept Using a Wide Variable Spark Gap and In-Cylinder Air Injection in Order to Meet Future CO2 Requirements and World Wide Emission Regulations” SAE 2001-01-0246
- Ekenberg et. al. “Fuel Distribution in an Air Assist Direct Injected Spark Ignition Engine with Central Injection and Spark Plug Measured with Laser Induced Fluorescence” SAE 2000-01-1898
- Ekenberg et al. “The effect of in-cylinder air injection on the combustion process in a stoichiometric air assist G-DI engine diluted with residual gas” Congress on Gasoline Direct Injection Engines, Haus der Technik e.V.Cologne, Germany, 2001.