Study on Improvement of Combustion and Effect of Fuel Property in Advanced Diesel Engine

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  • 先進ディーゼルエンジンによる燃焼改善と燃料影響に関する研究
  • センシン ディーゼルエンジン ニ ヨル ネンショウ カイゼン ト ネンリョウ エイキョウ ニ カンスル ケンキュウ

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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.

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