The control of diesel emissions by supercharging and varying fuel-injection parameters

Noboru Uchida, Yasuhiro Daisho, Takeshi Saito

研究成果: Conference contribution

7 引用 (Scopus)

抜粋

A study has been made of an automotive direct injection diesel engine designed to reduce exhaust emissions, particularly NOx and particulates, without performance deterioration. Special emphasis has been placed on air-fuel mixing conditions controlled by the fuel injection rate, the intake swirl ratio, and the intake boost pressure. By means of increasing the injection rate, ignition delay can be shortened enough to improve particulate emissions at retarded injection timings. Enhancing the intake swirl velocity contributes to the reduction of soot emission in spite of the deterioration of NOx emission. Supercharging can favorably enhance diffusion combustion resulting in improved fuel economy for retarded injection timings and reduced emissions. As a result, a good compromise can be achieved between fuel economy and exhaust emissions by increasing the injection rate along with retarding the injection timing. Supercharging was found to be more favorable than swirl enhancement.

元の言語English
ホスト出版物のタイトルSAE Technical Papers
DOI
出版物ステータスPublished - 1992
イベントInternational Congress and Exposition - Detroit, MI
継続期間: 1992 2 241992 2 28

Other

OtherInternational Congress and Exposition
Detroit, MI
期間92/2/2492/2/28

ASJC Scopus subject areas

  • Automotive Engineering
  • Safety, Risk, Reliability and Quality
  • Pollution
  • Industrial and Manufacturing Engineering

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