The aim of this work is to propose modifications to the managing of the 1st-generation Common-Rail injectors in order to reduce actuation time towards multiple injection strategies. The current Common-Rail injector driven by 1st ECU generation is capable of operating under stable conditions with a minimum dwell between two consecutive injections of 1.8 ms. This limits the possibility in using proper and efficient injection strategies for emission control purposes. A previous numerical study, performed by the electro-fluid-mechanical model built up by Matlab- Simulink environment, highlighted different area where injector may be improved with particular emphasis on electronic driving circuit and components design. Experiments carried out at injector Bosch test-bench showed that a proper control of the solenoid valve allowed reducing drastically the standard deviation during the pilot pulses.

A Numerical and Experimental Study Towards Possible Improvements of Common Rail Injectors / G. M., Bianchi; S., Falfari; F., Filicori; Milani, Massimo; P., Pelloni. - In: SAE TRANSACTIONS- JOURNAL OF ENGINES. - STAMPA. - 111:(2002), pp. 1105-1117.

A Numerical and Experimental Study Towards Possible Improvements of Common Rail Injectors

MILANI, Massimo;
2002

Abstract

The aim of this work is to propose modifications to the managing of the 1st-generation Common-Rail injectors in order to reduce actuation time towards multiple injection strategies. The current Common-Rail injector driven by 1st ECU generation is capable of operating under stable conditions with a minimum dwell between two consecutive injections of 1.8 ms. This limits the possibility in using proper and efficient injection strategies for emission control purposes. A previous numerical study, performed by the electro-fluid-mechanical model built up by Matlab- Simulink environment, highlighted different area where injector may be improved with particular emphasis on electronic driving circuit and components design. Experiments carried out at injector Bosch test-bench showed that a proper control of the solenoid valve allowed reducing drastically the standard deviation during the pilot pulses.
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1105
1117
A Numerical and Experimental Study Towards Possible Improvements of Common Rail Injectors / G. M., Bianchi; S., Falfari; F., Filicori; Milani, Massimo; P., Pelloni. - In: SAE TRANSACTIONS- JOURNAL OF ENGINES. - STAMPA. - 111:(2002), pp. 1105-1117.
G. M., Bianchi; S., Falfari; F., Filicori; Milani, Massimo; P., Pelloni
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11380/455034
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