Combustion Noise Prediction of 19TCI Electronically Controlled Common Rail Diesel Engine with Fuel Injection Strategy under Load
Diesel engine work will produce a lot of radiation noise,the research on vibration radiation noise control technology is a hot spot at present.According to the acoustic essence equivalent to linear transfer form,the combustion noise transfer function is linearized.A 19TCI electronically controlled common rail diesel engine was selected for testing,and the noise transfer function was established and optimized according to the injection control scheme and actual load characteristics.The load transfer function was evaluated.The results show that the different speed transfer functions can satisfy the load consistency verification and the precision control requirements.This research is helpful to improve the combustion efficiency of diesel engine,and can also be extended to other thermal equipment,which has a wide application value.
electronically controlled common rail diesel engineinjection strategyload characteristicsnoise transmission
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