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Low Soot and Low Heat Loss Combustion Bowl Development for High Efficiency Diesel Engines Using CFD
Published May 19, 2010 by Society of Automotive Engineers of Japan in Japan
Event: JSAE Spring Conference
Today's diesel high pressure injection systems deliver a large amount of kinetic energy which can be utilized to form a favorable distribution of fuel in the combustion chamber which is critical for advanced diesel engines. The mixture distribution is strongly influenced by the spray impact zone geometry thus affecting the emission formation as well as the heat release. In this paper the fundamentals of fuel-jet/wall interaction are investigated and employed to design several new and promising bowl shapes. These different approaches for optimized fuel-jet/bowl interaction are presented and guidelines for efficient bowl design are discussed.