Study of Pre-mixed Compression Ignition Combustion on Multi-cylinder Diesel Engine (Fifth Report)

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Other Title
  • 低NOx予混合燃焼方式の多気筒ディーゼルエンジンへの適用（第5報）
  • 低NOx予混合燃焼方式の多気筒ディーゼルエンジンへの適用(第5報)二段ターボチャージャーによる排出ガス低減に関する研究
  • テイNOx ヨコンゴウ ネンショウ ホウシキ ノ タキトウ ディーゼル エンジン エノ テキヨウ ダイ5ホウ 2ダン ターボチャージャー ニ ヨル ハイシュツ ガス テイゲン ニ カンスル ケンキュウ
  • -二段ターボチャージャーによる排出ガス低減に関する研究-
  • -Emission Improvement using Two-stage Turbocharger-

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Pre-mixed compression ignition (PCI) combustion of low NOx emission was performed in a multi-cylinder diesel engine in a previous paper. In this study, a two-stage turbocharger was applied on test engine to actualize PCI region expansion and emission improvement. The test result showed a large reduction effect of emission was provided by applying a two-stage turbocharger and by controlling EGR gas temperature during test cycle. Further, the emission of the conventional diesel combustion also improved by performance improvement of supercharge with new turbo system. Finally, adaptability of engine out NOx emission on US Tier2 regulation was examined.

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