This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
New EGR System for Heavy Duty Diesel Engines
Annotation ability available
Sector:
Language:
English
Abstract
In the case of turbocharged heavy duty diesel engines, the total efficiency of the turbocharger is higher than for smaller turbos for passenger cars. It is difficult to recirculate exhaust gas because of higher intake manifold pressure in comparison to exhaust gas pressure.
IHI has developed a new turbocharger for exhaust gas recirculation for heavy duty diesel engines. It has a recirculation port at compressor side. The port is connected with a narrow annular slit located at the diffuser inlet, where the static pressure is lower than intake manifold. The result of JIS diesel 13 mode test with this turbocharger showed 26 % lower NOx without significant penalty of fuel consumption.
Recommended Content
Authors
Topic
Citation
Yamada, T., Ikeya, N., and Kondoh, N., "New EGR System for Heavy Duty Diesel Engines," SAE Technical Paper 980775, 1998, https://doi.org/10.4271/980775.Also In
References
- Sugihara, H. et al. Effects of High-Boost Turbocharging on Combustion Characteristics and Improving its Low Engine Speed Torque SAE paper 920046 1992
- Ikeya, N. et al. Development of Advanced Model of Turbocharger for Automotive Engines SAE paper 920047 1992
- Baert, R. S. G. et al. New EGR Technology Retains HD Diesel Economy with 21st Century Emissions SAE paper 960848 1996
- Kohketsu, S. et al. EGR Technologies for a Turbocharged and Intercooled Heavy-Duty Diesel Engine SAE paper 970340 1997
- Ropke, S. et al. NOx Formation in Diesel Engines for Various Fuel and Intake gases SAE paper 950213 1995
- Kondo, N. Technical Trend of Turbocharger for Trucks and Buses Journal of the Gas Turbine Society of Japan 24 96 29 32 1997