Reduction of Pollutant Emissions in a HD Diesel Engine by Adjustment of Injection Parameters, Boost Pressure and EGR 2003-01-0343
The purpose of the study reported in this paper was to exploit the possibility of adjusting some injection parameters in a diesel engine fitted with a common-rail injection system with the final goal of reducing pollutant emissions. Starting from the original settings, several injection parameters like nozzle hole diameter, injection pressure and injection duration, were adjusted following three different injection strategies, trying to produce some specific fuel spray patterns (spray penetration and cone angle, air entrainment, etc). Additionally, boost pressure was modified, in order to control spray-air interaction, and EGR was introduced to achieve the required NOx reduction. The adjusted injection setting allowed to generate starting values in pollutants emissions very tolerant to EGR, in such a way that the achieved reduction of NOx was not frustrated by an excessive increase in PM emissions.
Citation: Payri, F., Benajes, J., Molina, S., and Riesco, J., "Reduction of Pollutant Emissions in a HD Diesel Engine by Adjustment of Injection Parameters, Boost Pressure and EGR," SAE Technical Paper 2003-01-0343, 2003, https://doi.org/10.4271/2003-01-0343. Download Citation
Francisco Payri, Jesús Benajes, Santiago Molina, J. Manuel Riesco
CMT-Motores Térmicos, Universidad Politécnica de Valencia
SAE 2003 World Congress & Exhibition
In-Cylinder Diesel Particulate and Nox Control 2003-SP-1738