14 December 2016 Studies concerning the effect of large droplets creation during fuel atomization
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Proceedings Volume 10010, Advanced Topics in Optoelectronics, Microelectronics, and Nanotechnologies VIII; 100101N (2016) https://doi.org/10.1117/12.2243005
Event: Advanced Topics in Optoelectronics, Microelectronics, and Nanotechnologies 2016, 2016, Constanta, Romania
Abstract
This paper presents how to form and evolve atomized fuel droplets obtained experimentally for a high wear injector if the injection pressure is below nominal. The emergence and development of large droplet atomization phenomenon in spark-ignition engines are considered an undesirable phenomenon. The presence of large droplets of the atomized fuel leads to the deposition of substances on the surface of the injector nozzle of the spray in the areas of the intake valve and its seat aspects of oxides which give rise to these areas. In addition, there is the possibility of harm in larger quantities than the normal atomization, in which case the operation of the engine and becomes defective. For proper engine operating at the same time ensuring economy, injection equipment must provide a fuel pressure to the maximum prescribed.

The article studied how faulty air mixture formation petrol deviations from uniformity is a due injectors waste can generate large drops of fuel. To conduct this study was conducted an experimental stand [1] which allows modification of the duration of injection and its cyclicality. To highlight the injector nozzle wear scans were performed by laser profilometry. Highlighting the large droplets of fuel was performed using rapid shootings.
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Marius Beniuga, Ioan Mihai, "Studies concerning the effect of large droplets creation during fuel atomization", Proc. SPIE 10010, Advanced Topics in Optoelectronics, Microelectronics, and Nanotechnologies VIII, 100101N (14 December 2016); doi: 10.1117/12.2243005; https://doi.org/10.1117/12.2243005
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