An investigation of the fuel injector dedicated to the aircraft opposed-piston two-stroke diesel engine
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Faculty of Mechanical Engineering, Lublin University of Technology
Publication date: 2019-05-01
Combustion Engines 2019,177(2), 151–155
The paper presents the research results of the injector construction with the modified injection nozzle. The injector is designed for a prototype opposed-piston aircraft diesel engine. The measurements were based on the Mie scattering technique. The conditions of the experiment corresponded to maximum loads similar to those occurring at the start. The measuring point was selected in line with the analysis of engine operating conditions: combustion chamber pressure at the moment of fuel delivery (6 MPa) and fuel pressure in the injection rail (140 MPa). The analysis focused on the average spray range and distribution, taking into account the differences between holes in the nozzle. As a result of the conducted research, the fuel spray range was defined with the determined parameters of injection. The fuel spray ranges inside the constant volume chamber at specific injection pressures and in the chamber were examined, and the obtained results were used to verify and optimize the combustion process in the designed opposed-piston two-stroke engine.
ANDREASSI, L., UBERTINI, S., ALLOCCA, L. Experimental and numerical analysis of high pressure diesel spraywall interaction. International Journal of Multiphase Flow. 2017, 33, 742-765, DOI:10.1016/j.ijmultiphaseflow.2007.01.003.
Bruker microCT. Description SkyScan1173. 2018,
CZYŻ, Z., SIADKOWSKA, K., SOCHACZEWSKI, R. CFD analysis of charge exchange in an aircraft opposedpiston diesel engine. MATEC Web of Conferences, 2019, 252, 4002, DOI:10.1051/matecconf/201925204002.
DESANTES, J.M., GARCÍA-OLIVER, J.M., XUAN, T. et al. A study on tip penetration velocity and radial expansion of reacting diesel sprays with different fuels. Fuel. 2017, 207, 323-335, DOI:10.1016/j.fuel.2017.06.108.
DESANTES, J.M., PASTOR, J.V., GARCÍA-OLIVER, J.M. et al. An experimental analysis on the evolution of the transient tip penetration in reacting diesel sprays. Combustion and Flame. 2014, 161, 2137-2150, DOI:10.1016/j.combustflame.2014.01.022.
HOON, C., REITZ, R.D. CFD simulations of diesel spray tip penetration with multiple injections and with engine compression ratios up to 100:1. Fuel. 2013, 111, 289-297, DOI:10.1016/j.fuel.2013.04.058.
IDZIOR, M., STOBNICKI, P., PIELECHA, I. et al. Research and analysis of the influence of the injection pressure on spraying fuel in the chamber about the fixed volume. Combustion Engines. 2013, 154(3), 811-819.
ITV RWTH Aachen. Spraykammer. 2018,
LI, F. et al. Experimental study on spray characteristics of long-chain alcohol-diesel fuels in a constant volume chamber. Journal of the Energy Institute. 2017, C, 1-14, DOI:10.1016/j.joei.2017.11.002.
MARCIC, S., MARCIC, M., WENSING, M. et al. A simplified model for a diesel spray. Fuel. 2018, 222, 485-495, DOI:10.1016/j.fuel.2018.02.152.
PAYRI, R., GARCÍA-OLIVER, J.M., BARDI, M. et al. Fuel temperature influence on diesel sprays in inert and reacting conditions. Applied Thermal Engineering. 2012, 35(1), 185-195, DOI:10.1016/j.applthermaleng.2011.10.027.
Photron. Specyfikacja FASTCAM SA1.1. 2018,
PIELECHA, I. et al. Problems of determining of fuel spray geometric parameters when based on optical investigations. Combustion Engines. 2015, 162(3), 307-315.
STOBNICKI, P. Badawcza analiza wtrysku paliwa w aspekcie właściwości ekologicznych silnika o zapłonie samoczynnym. 2013.