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Investigation of Probable Combustion Chamber Configurations for High Output D.I. Diesel Engines
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Abstract
Three types, namely the open type chamber, the twin type chamber and the squash type chamber were investigated for their suitability and adaptability in high speed and high output diesel engine applications. Six different chamber configurations were considered and possible variations such as the change of compression ratio and the utilization of unit and regular injectors were examined for fuel and air interactions.
Effect of the temperature of the fuel, droplet size in terms of Sauter mean diameter, the inlet pressure (supercharging), the initial engine swirl, the inclination angle of fuel spray and the opening lip size were discussed. The squash chamber seems to possess a unique potential for uniform fuel distribution throughout the entire chamber volume when the factors of the fuel temperature, the supercharging, the engine swirl ratio and the inclination angle of the spray plume are maximized for the D2 chamber.
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Citation
Tsao, K., Dong, Y., Xu, Y., Gruenwald, D. et al., "Investigation of Probable Combustion Chamber Configurations for High Output D.I. Diesel Engines," SAE Technical Paper 921729, 1992, https://doi.org/10.4271/921729.Also In
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