| 제목 |
Numerical Analysis of Premixed Diesel Combustion with Variable Valve Timing |
| 분야 |
Engine, Emission Technology |
| 언어 |
English |
| 저자 |
Yutaka Murata(Waseda University), Yasuhiro Daisho(Waseda University), Jin Kusaka(Waseda University), Daisuke Kawano(National Traffic Safety and Environmental Laboratory), Hajime Ishii(National Traffic Safety and Environmental Laboratory), Hisakazu Suzuki(National Traffic Safety and Environmental Laboratory), Yuichi Goto(National Traffic Safety and Environmental Laboratory), Matsuo Odaka(Waseda University) |
| Key Words |
Diesel Engine, Combustion/Premixed Diesel Combustion, VVT, LIVC, KIVA3V |
| 초록 |
A variable valve timing (VVT) mechanism was applied to control premixed diesel 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 charge temperatures near the top dead center were lowered, thereby increasing ignition delay to enhance fuel-air mixing. The variability of effective compression ratio has significant potential for ignition timing control. The VVT mechanism combined with EGR and supercharging systems simultaneously reduced NOx and smoke. The NOx and smoke suppression mechanism in the premixed diesel combustion was analzed using the 3D-CFD code combined with detailed chemistry. |
| 원문(PDF) |
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