This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Optimization of a Dual-Intake/Exhaust/EGR System with the Exhaust-pulse Ejector for a Heavy-duty Turbocharged Diesel Engine
Technical Paper
2007-01-1914
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
Various configurations of high-pressure-loop EGR system for a heavy-duty turbocharged diesel engine have been studied through CFD and performance simulation. Dual-EGR piping between the intake- and exhaust-manifolds with the ‘exhaust-pulse ejector’ at the junction of the exhaust manifold were found promising with respect to higher EGR ratio at high load, less pumping loss and higher volumetric efficiency. A reed valve in each EGR passage was effective in that respect. It was also found that combining with venturi tubes or intake-resonance-charging could enhance the above-mentioned effects. Some of these effects have been experimentally proven on a real engine.
Recommended Content
Authors
- Shuichi Nakamura - Research Department, Nissan Diesel Motor Co.,Ltd.
- Kenichirou Imaoka - Research Department, Nissan Diesel Motor Co.,Ltd.
- Kensuke Sugahara - Research Department, Nissan Diesel Motor Co.,Ltd.
- Tomoyasu Harada - Research Department, Nissan Diesel Motor Co.,Ltd.
- Hisashi Akagawa - Research Department, Nissan Diesel Motor Co.,Ltd.
Topic
Citation
Nakamura, S., Imaoka, K., Sugahara, K., Harada, T. et al., "Optimization of a Dual-Intake/Exhaust/EGR System with the Exhaust-pulse Ejector for a Heavy-duty Turbocharged Diesel Engine," SAE Technical Paper 2007-01-1914, 2007, https://doi.org/10.4271/2007-01-1914.Also In
References
- Hirata, K. Et al. Development of Urea-SCR System for Heavy-Duty Commercial Vehicles SAE 2005-01-1860 2005
- Misawa, M. Et al. High EGR Diesel Combustion and Emission Reduction Study by Multi Cylinder Engine Proceedings of JSAE, No.20055892 2005
- Osada, H. Et al. Diesel Combustion and Emission Study by Using of High Boost and High Injection Pressure in a Single Cylinder Engine Proceedings of JSAE, No.20055889 2005
- Kumo, M. Et al. Development of New EGR System Journal of JSAE 54 9 86 93 2000
- Iwata, N. Et al. Development of 6UZ1TC Engine for Heavy Duty Truck Isuzu Technical Journal No.114 42 46 2005