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Study of the Impact of Structural Parameters on the Dynamic
Abstract
10The study concentrates on the effects of structural parameters of an electronic fuel 11 injector on its dynamic response (the opening delay and the closing delay). The injector 12 was developed for a marine medium-speed diesel engine. The dynamic response from 13 the start of the control signal to the end of the needle valve closing were investigated. 14 Firstly, a complete and detailed model of the electronic fuel injector was built and 15 integrated into an optimisation model, where a MOGA was applied. Secondly, the 16 importance and effects of main structural parameters on dynamic response were 17 examined, as were their interactions. Finally, a Pareto optimum was obtained through 18 scattering charts and comparisons were made between the baseline design and the 19 optimal design. Results show that the control piston diameter, fuel oil inlet passage 20 *