Title: Experimental investigations of a new type of fuelling system for heavy-duty diesel engines

Authors: Hubert Kuszewski, Kazimierz Lejda

Addresses: Faculty of Mechanical Engineering and Aeronautics, Department of Automotive Vehicles and Internal Combustion Engines, Rzeszow University of Technology, 8 Powstancow Warszawy Ave., 35-959 Rzeszow, Poland. ' Faculty of Mechanical Engineering and Aeronautics, Department of Automotive Vehicles and Internal Combustion Engines, Rzeszow University of Technology, 8 Powstancow Warszawy Ave., 35-959 Rzeszow, Poland

Abstract: This paper presents a new construction for a multi-hole injector as part of a new type of fuelling system for diesel engines, in which the injector needle performs a rotary swinging movement. During fuel injection, the needle changes the area of the atomising orifices. This design changes the shape of atomised fuel sprays and impacts on their properties. The results of experimental investigations of the new type of fuelling system show that fuel sprays formed using a rotary swinging needle injector differ from those generated by a standard injector.

Keywords: heavy-duty engines; multi-hole injector; spraying; fuelling system; spray-front; apex angle; diesel engines; fuel injection; atomised fuel sprays.

DOI: 10.1504/IJHVS.2009.023855

International Journal of Heavy Vehicle Systems, 2009 Vol.16 No.1/2, pp.61 - 77

Published online: 17 Mar 2009 *

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