Abstract
Advanced engine technologies, such as variable velve actuation, ultra-high pressure fuel injection, and high pressure turbocharger, have been developed for reduction in emission and fuel consumption of diesel engines. Objectives of this study are to investigate possibility of a new clean combustion with advanced engine technologies, and to clarify effects of fuel properties on the advanced engine combustion. The result from this study represents that decreases in fuel ignitability and T90 derive a long premixing period or promotion of fuel evaporation that could reduce soot emission. And it is clarified that simultaneous use of ultra-high pressure fuel injeciton and high pressure turbo-charging could expand operation limit with ultra-low emission and silent diesel combustion.
