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Rate of injection modelling for gasoline direct injectors

Payri, Raul, Bracho, Gabriela, Gimeno, Jaime, Bautista, Abian
Energy conversion and management 2018 v.166 pp. 424-432
calibration, climate change, combustion, diesel engines, fossil fuels, gas engines, gasoline, injectors, models, pollutants
Awareness of climate change, fossil fuel availability, and pollutants has been growing which have pushed forward the effort in cleaner engines. In this aspect, the gasoline engines have more improving margin than diesel engines. To have a more efficient combustion, injection systems had evolved from old Port Fuel Injectors to modern Gasoline direct injections which are the used by engine manufacturers nowadays. In this study, within the framework of the Engine Combustion Network (ECN), the so named Spray G is modelled. This gasoline direct injector was developed by Delphi with the intention of getting a better understanding of the gasoline spray. The model is focused on the Rate of Injection (ROI) signal, whose results are presented in order to help engine calibration and modelling for an extensive range of configurations without the need for experimental measurements.