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Applicability of Various EGR Strategies in Multi-Cylinder Diesel Engine (First Report)~Effect Comparison Between HPL-EGR and LPL-EGR
Published October 01, 2007 by Society of Automotive Engineers of Japan in Japan
Event: JSAE Autumn Conference
The effect of high pressure loop (HPL) and low pressure loop (LPL) EGR systems on engine performance and emission characteristics were investigated using a multi-cylinder diesel engine under steady-state conditions. The HPL-EGR achieves higher fuel economy at low load while the LPL-EGR can sufficiently lower intake gas temperature and can reduce NOx and soot emissions. Especially at high load, LPL-EGR can reduce NOx and soot emissions without fuel penalty. On the other hand, the LPL-EGR can reduce NOx to meet the post new long-term regulation target without increasing soot emission at low load.
- Daisuke Kawano - National Traffic Safety and Environment Laboratory
- Hisakazu Suzuki - National Traffic Safety and Environment Laboratory
- Hajime Ishii - National Traffic Safety and Environment Laboratory
- Yuichi Goto - National Traffic Safety and Environment Laboratory
- Atsushi Kaneko - Waseda Univ.
- Ryo Komiya - Waseda Univ.
- Yusuke Adachi - Waseda Univ.
- Yutaka Murata - Waseda Univ.
- Jin Kusaka - Waseda Univ.
- Yasuhiro Daisho - Waseda Univ.