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Evaluation of the injectors operational wear process based on optical fuel spray analysis
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Institute of Combustion Engines and Transport Poznan University of Technology ul. Piotrowo 3, 60-965 Poznan, Poland
Department of Performance Testing Oil and Gas Institute - National Research Institute ul. Lubicz 25A, 31-503 Cracow, Poland
Publication date: 2018-03-31
Eksploatacja i Niezawodność – Maintenance and Reliability 2018;20(1):83-89
The diagnostics of combustion engine components currently requires the integration of many technical and scientific fields in order to quickly and accurately locate faults or pinpoint the causes of malfunction. This article analyzes the wear of injectors based on the geometric indicators of the fuel spray. Using a number of available parameter data, a selection has been made to best judge the wear of injectors in their operating conditions. Optical fuel spray tests were used to assess the injector wear. Various geometric indicators of the fuel stream have been presented, indicating their diagnostic utility and applicability. In conclusion, it was found that the current injection systems require the combination of mechanical injector diagnostics and advanced optical fuel spray diagnostics.
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