Study of fuel distribution in diesel spray (effects of nozzle diameter, injection pressure and ambient gas density)

The fuel distribution in a diesel spray seriously affects the performance of diesel engines. Nozzle diameter, injection pressure and ambient gas density are important factors which affect the atomization, penetration and fuel distribution. Therefore, effects of those factors on fuel distribution in...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:Nihon Kikai Gakkai rombunshuu. B hen 1987-01, Vol.53 (487), p.1122-1124
Hauptverfasser: Sakane, A, Hirata, S, Shimotsu, M, Sumimoto, T
Format: Artikel
Sprache:jpn
Schlagworte:
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:The fuel distribution in a diesel spray seriously affects the performance of diesel engines. Nozzle diameter, injection pressure and ambient gas density are important factors which affect the atomization, penetration and fuel distribution. Therefore, effects of those factors on fuel distribution in a diesel spray were investigated in the cold and quiescent atmosphere. Fuel concentration was determined by the image analysis of shadow photographs of spray. As a result, the following was revealed. In the case of a smaller nozzle diameter and higher injection pressure, the mixing rate of fuel and ambient gas is greater. In similarly designed diesel engines with various power ranges, by normalizing the dimension of engines by nozzle diameter, it is supposed that the shape and fuel distribution of sprays will be similar at same crank angle.
ISSN:0387-5016