This content is not included in your SAE MOBILUS subscription, or you are not logged in.
Experimental Characterization of Turbocharging and Egr Systems in An Automotive Diesel Engine
Published June 24, 1996 by Institution of Mechanical Engineers in United Kingdom
Event: International Seminar on Application of Powertrain and Fuel Technologies to Meet Emissions Standards
A broad experimental investigation is being developed at the Instituto di Macchine e Sistemi Energetici (IMSE) of the University of Genoa on a DI automotive diesel engine, fitted with a variable geometry turbocharger turbine (VGT) and an exhaust gas recirculation system (EGR). Two experimental facilities allow to develop engine dynamometer tests and define the flow characteristics of the main intake and exhaust circuit components. Several experimental results are discussed in the paper: engine performance and emissions in the baseline arrangement without EGR are first considered, focusing on the matching of the VGT turbocharger. The interactions between the turbocharger and the EGR system are then analyzed for different operating conditions and EGR rates.