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Investigation of Cycle-to-Cycle Variations of In-Cylinder Processes in Gasoline Direct Injection Engines Operating With Variable Tumble Systems
Technical Paper
2004-01-0044
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
To operate gasoline direct injection engines at part load and in stratified mode the mixture formation has to fulfil several requirements. The complexity of this process requires - regarding a suitable mixture transportation and vaporisation of the fuel - an adjusted design of the combustion chamber and the intake ports to reliably place an ignitable mixture at ignition timing near the spark plug at any speed and load. Due to the inhomogeneous mixture distribution during stratified operation, the first combustion period is very sensitive to cycle-to-cycle variations. A reproducible mixture movement with high kinetic energy is necessary for stable engine operation with low fluctuations in the combustion process. Because of the high relevance of these facts, the effects of an adjustable air guiding system in the inlet manifold on in-cylinder flow, ignition and combustion using optical measurement techniques were investigated.
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Citation
Fischer, J., Velji, A., and Spicher, U., "Investigation of Cycle-to-Cycle Variations of In-Cylinder Processes in Gasoline Direct Injection Engines Operating With Variable Tumble Systems," SAE Technical Paper 2004-01-0044, 2004, https://doi.org/10.4271/2004-01-0044.Also In
References
- Spicher U. Reissing J. Kech J.M. Gindele J. “Gasoline Direct Injection (GDI) Engines - Developement Potentialities” SAE Technical Paper 1999-01-2938 1999
- Reuss D.L. “Cyclic Variability of Large-Scale-Turbulent Structures in Directed and Undirected IC Engine Flows” SAE Technical Paper 2000-01-0246 2000
- Martin J. Plee S. Remboski D. “Burn Modes and Prior-Cycle Effects on Cyclic Variation in Lean-Burn Spark-Ignition Engine Combustion” SAE Technical Paper 880201 1988
- Johansson B. Neji H. Alden M. Juhlin G. “Investigations of the Influence of Mixture Preparation on Cyclic Variations on a SI-Engine Using Laser Induced Fluorescence” SAE Technical Paper 950108 1995
- Fujikawa T. Nomura Y. Hattori Y. Kobayashi T. Kanda M. “Analysis of cycle-to-cycle variation in a direct injection gasoline engine using a laser-induced fluorescence technique” Int. Journal Engine Research 4 2 143 153 2003
- Gindele J. “Untersuchung zur Ladungsbewegung und Gemischbildung im Ottomotor mit Direkteinspritzung” University Karlsruhe Germany 2001
- Raffel J. Willert C. Kompenhans J. “Particle Image Velocimetry - A Practical Guide” Springer 1998
- Fansler T.D. Stoijkovic B. Drake M.C. Rosalik M.E. “Local Fuel concentration measurements in internal combustion engines using spark-emission spectroscopy” Applied Physics B 2002
- Spicher U. Spiegel L. Reggeli B. Heuser G. “Investigations into the Application of an Optical Fiber Sensor for Knocking Detection and Knock SAE Technical Paper 922370 1992
- Spicher U. “Lichtleitertechnik und Optimierung von Brennräumen” 11 th Int. Wiener Engine Symposium 1990
- Fischer J. Kettner M. Nauwerck A. Pfeil J. Spicher U. “Influence of an Adjustable Tumble-System on In-Cylinder Air Motion and Stratification in a Gasoline Direct Injection Engine” SAE Technical Paper 2002-01-1645 2002
- Graftieaux L. Michard M. Grosjean N. “Combining PIV, POD and vortex identification algorithms for the study of unsteady turbulent swirling flows” Measurement Science and Technology 12 1422 1429 2001
- Baby X. Dupont A. Ahmed A. Deslandes W. Charnay G. Michard M. “A New Methodology to Analyze Cycle-to-Cycle Aerodynamic Variations” SAE Technical Paper 2002-01-2837 2002