Optimization of Injection Law for Direct Injection Diesel Engine

[+] Author and Article Information
M. Feola, G. Bella

Dipartimento di Ingegneria Meccanica II, Università di Roma, Rome, Italy

P. Pelloni, P. Casoli, G. Toderi

Dipartimento di Ingegneria Industriale, Università di Parma, Parma, Italy

G. Cantore

Istituto di Macchine, Università di Bologna, Bologna, Italy

J. Eng. Gas Turbines Power 114(3), 544-552 (Jul 01, 1992) (9 pages) doi:10.1115/1.2906623 History: Received September 01, 1991; Online April 24, 2008


This paper describes how different timing and shape of the injection law can influence pollutant emission of a direct injection diesel engine. The study was carried out making use of a “multizone” thermodynamic model as regards the closed valve phase, and a “filling-emptying” one as regards the open valve phase. After being calibrated by comparison with experimental data, the abovementioned model was used for injection law optimization as regards minimum pollutant concentration (NOx and soot) in the exhaust gases with the smallest engine performance reduction possible.

Copyright © 1992 by The American Society of Mechanical Engineers
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