This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Small Bore Diesel Engine Combustion Concept
Technical Paper
2015-01-0788
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
Small bore diesel engines often adopt a two-valve cylinder head and a non-central injector layout to expand the port flow passage area. This non-central injector layout causes asymmetrical gas flow and fuel distribution, resulting in worse heat losses and a less homogenous fuel-air mixture than an equivalent four-valve cylinder head layout with a central injector. This paper describes the improvement of piston bowl geometry to achieve a more homogeneous gas flow and fuel-air mixture. This concept reduced fuel consumption by 2.5% compared to the original piston bowl geometry, while also reducing NOx emissions by 10%.
Recommended Content
Authors
Topic
Citation
Nishida, K., Ogawa, T., Hashizume, T., Ishiyama, S. et al., "Small Bore Diesel Engine Combustion Concept," SAE Technical Paper 2015-01-0788, 2015, https://doi.org/10.4271/2015-01-0788.Also In
References
- Kobayashi , S. IPCC Activity for Global Warming and Role of Automobile Industry Journal of Society of Automotive Engineers of Japan 62 11 22 27 2008
- Hori , M. Future Prospect of Eco-Diesel Engines Journal of Society of Automotive Engineers of Japan 60 9 6 11 2006
- Aoyagi , Y. et al. Diesel Combustion and Emission Study by Use of High Boost and High Injection Pressure in Single-Cylinder Engine Proceedings of Society of Automotive Engineers of Japan Annual Congress 46 03 11 16 2003
- Yoshida , K. , Asanuma , T. , Nishioka , H. , Hayashi , K. et al. Development of NOx Reduction System for Diesel Aftertreatment with Sulfur Trap Catalyst SAE Technical Paper 2007-01-0237 2007 10.4271/2007-01-0237
- Inagaki , K. et al. Low Emissions and High-efficiency Diesel Combustion using Highly Dispersed Sprays with Restricted In-cylinder Swirl and Squish Flows (First Report) Transactions of Society of Automotive Engineers of Japan 42 1 219 224 2011
- Hashizume , T. et al. Low Emissions and High-efficiency Diesel Combustion using Highly Dispersed Sprays with Restricted In-cylinder Swirl and Squish Flows (Second Report) Transactions of Society of Automotive Engineers of Japan 42 2 439 444 2011
- Nishida , K. et al. Small bore diesel engine combustion concept Society of Automotive Engineers of Japan Annual Congress 195-20145725.
- Hashizume , T. et al. Toyota's Innovative High Efficiency Diesel Combustion Concept 23rd Aachen Colloquium Automobile and Engine Technology