Simultaneous attainment of low fuel consumption high output power and low exhaust emissions in direct injection SI engines

Yasuo Takagi*, Teruyuki Itoh, Shigeo Muranaka, Akihiro Iiyama, Yasunori Iwakiri, Tomonori Urushihara, Ken Naitoh

*この研究の対応する著者

研究成果: Conference article査読

68 被引用数 (Scopus)

抄録

This paper describes simultaneous attainment in improving fuel consumption, output power and reducing HC emissions with a direct injection S.I. engine newly developed in Nissan. Straight intake port is adopted to increase discharge coefficient under WOT operation and horizontal swirl flow is generated by a swirl control valve to provide stable stratified charge combustion under part load conditions. As a result, fuel consumption is reduced by more than 20% and power output is improved by approximately 10%. Moreover, unburned HC is reduced by equivalently 30% in engine cold start condition. An application of diagnostic and numerical simulation tools to investigate and optimize various factors are also introduced.

本文言語English
ジャーナルSAE Technical Papers
DOI
出版ステータスPublished - 1998 1 1
外部発表はい
イベント1998 SAE International Congress and Exposition - Detroit, MI, United States
継続期間: 1998 2 231998 2 26

ASJC Scopus subject areas

  • 自動車工学
  • 安全性、リスク、信頼性、品質管理
  • 汚染
  • 産業および生産工学

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