Browse Publications Technical Papers 1999-01-3681
1999-10-25

New Combustion Concept for Ultra-Clean and High-Efficiency Small DI Diesel Engines 1999-01-3681

Nitrogen oxide (NOx) and particulate matter (PM) emissions of diesel vehicles are regarded as a source of air pollution, and there is a global trend to enforce more stringent regulations on these exhaust gas constituents in the early years of the 21st century. On the other hand, the excellent thermal efficiency of diesel engines is certainly a welcome attribute from the standpoints of conserving energy and curbing global warming. Recently, many research institutes around the world have been using high-efficiency direct-injection (DI) diesel engines to research emission control technologies. The authors have also been engaged in such research [1,2]. As a result of this work, we have developed a new combustion concept, called Modulated Kinetics (MK), that reduces NOx and smoke simultaneously due to low-temperature and premixed combustion characteristics, respectively, without increasing fuel consumption [3,4].
This paper describes the combustion and emission characteristics obtained when the MK combustion concept was applied to single-cylinder and multi-cylinder test engines. Combustion photographs and transient heat flux measurements were taken to investigate the characteristics of this new combustion process. The results indicate the possibility of obtaining high-efficiency, ultra-clean internal combustion engines for the 21st century.

SAE MOBILUS

Subscribers can view annotate, and download all of SAE's content. Learn More »

Access SAE MOBILUS »

Members save up to 18% off list price.
Login to see discount.
Special Offer: Download multiple Technical Papers each year? TechSelect is a cost-effective subscription option to select and download 12-100 full-text Technical Papers per year. Find more information here.
We also recommend:
TECHNICAL PAPER

Technology for Meeting the 1991 U.S.A. Exhaust Emission Regulations on Heavy Duty Diesel Engine

902233

View Details

TECHNICAL PAPER

The Dilution, Chemical, and Thermal Effects of Exhaust Gas Recirculation on Diesel Engine Emissions - Part 1: Effect of Reducing Inlet Charge Oxygen

961165

View Details

JOURNAL ARTICLE

Development of the Total Engine Simulation System (TESS) and Its Application for System Investigation of Future Diesel Engine

2011-01-1298

View Details

X