Browse Publications Technical Papers 1999-01-0193

Influence of Injection Pressure on the Performance of a DI Diesel Engine with a Common Rail Fuel Injection System 1999-01-0193

The influence of injection pressure on the performance of a FIAT passenger car Diesel engine prototype equipped with a Common Rail Fuel Injection System has been investigated.
An increase of the injection pressure from 1300 up to 1500 bar, during this research, has permitted the assessment of the effect of this parameter on the maximum power and on the smoke emissions. The tests were performed at 4000 rpm, with an equal mass of injected fuel. The influence of the injection advance has also been taken into consideration during this experimental analysis.
The in-cylinder pressure was first detected and recorded, together with the brake torque and emissions; the in-cylinder pressure was then used for the determination of the principal combustion characteristics, on the basis of the heat release analysis.
Finally, higher injection pressure could be used as an effective parameter to increase the maximum power angular speed. This choice can be made on the basis of vehicle driveability considerations.


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 Rail Pressure, Pilot Scheduling and EGR Rate on Combustion and Emissions in Conventional and PCCI Diesel Engines


View Details


An Experimental Study on the Effect of Intake Primary Runner Blockages on Combustion and Emissions in SI Engines under Part-Load Conditions


View Details


Optimum Compression Ratio Variation of a 4-Stroke, Direct Injection Diesel Engine for Maximum Brake Power and Torque and Minimum Soot and NOx Emissions


View Details