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Model-based analysis of injection process parameters in a common rail fuel supply system
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Department of Combustion Engines and Vehicles University of Bielsko-Biala ul. Willowa 2, 43-309 Bielsko-Biała, Poland
Publication date: 2020-03-31
Eksploatacja i Niezawodność – Maintenance and Reliability 2020;22(1):94–101
In this work, a simplified model of a rail-based fuel supply system in a compression ignition engine is presented. High pressure hoses were not taken into consideration and an empirical model was developed to simulate the injectors. The basic equations of the model are presented. Phenomena were described by 17 first-order ordinary differential equations. This work also contains an evaluation of the impact of the rail’s geometrical parameters on the injection process. The evaluation was carried out via a program calculating the injection process, using a balance model of the injection system. A method for making preliminary decisions on the geometrical parameters of the rail is proposed.
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