Additive Approaches to Reduced Diesel Emissions 912327

Increasing concern over automotive exhaust pollution has led to very severe legislative limits being imposed on vehicle emissions. Whilst the vehicle constructors are working to improve the hardware to meet these limits, it is evident that the contribution to be made from improved fuels and lubricants is of increasing significance.
This paper not only shows the effect of diesel fuel additives in maintaining system cleanliness over the required emissions durability limits, but also discusses the effect of new technology giving substantial particulate reductions in the order of 15-40%, whilst leaving the gaseous emissions (HC, CO and NOx) either unaffected or reduced. The effectiveness of the technology is demonstrated in a variety of diesel engines - from passenger cars to heavy duty trucks - over the legislated test cycles.
Driveability benefits in passenger cars have also been noted with these additives in terms of increased power and improved acceleration times.
The effect that the lubricant can have on d articulate emissions has also been examined. Some preliminary data on the combined effect of low emission fuels and oils is presented.
Whereas the benefits of hardware improvements are only realised in the new vehicle market, utilisation of these technologies could give an emissions reduction across the entire diesel vehicle population.


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


Members save up to 17% 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:

Effects of Cetane Number, Aromatics, and Oxygenates on Emissions From a 1994 Heavy-Duty Diesel Engine With Exhaust Catalyst


View Details


The Effect of Pure RME and Biodiesel Blends with High RME Content on Exhaust Emissions from a Light Duty Diesel Engine


View Details


Single-Cylinder Diesel Engine Study of Four Vegetable Oils


View Details