3108 可変バルブタイミングによる予混合ディーゼル燃焼の着火時期制御(G07-2 燃焼制御(2),G07 エンジンシステム)

概要

論文の詳細を見る
A variable valve timing (VVT) mechanism was applied to control premixed diesel ignition and combustion at higher load for low emissions and high thermal efficiency in a light duty diesel engine. By means of late intake valve closing, compressed gas temperature near the top dead center could be lowered, thereby increasing ignition delay to enhance fuel-air mixing. The variability of effective compression ratio has a significant potential tor controlling ignition timing of premixed charge. The VVT mechanism combined with EGR and a supercharging system could simultaneously reduce NOx, smoke and maximum combustion pressure of premixed diesel combustion at higher exhaust gas temperature.
社団法人日本機械学会の論文
2005-09-18