The article describes phenomena related to diesel fuel injection parameters that limit the improvement of performance and emissions of a compression-ignition engine. The main ones include the phenomenon of knock and incomplete combustion. The method of optimizing injection parameters, which consisted of selecting the start-of-injection angles for the pilot dose and the main dose, is discussed. The results are presented based on load characteristics of specific fuel consumption, nitrogen oxide concentrations, and exhaust smoke (light absorption coefficient).The dynamic development of direct diesel fuel injection systems aims to increase thermal efficiency and reduce emission levels: nitrogen oxides, exhaust smoke, and noise across the entire engine operating range. Achieving the aforementioned goals is possible through appropriate control of the combustion process. (…)
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Source: Logistyka Magazine