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A Numerical and Experimental Study Towards Possible Improvements of Common Rail Injectors
Technical Paper
2002-01-0500
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
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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Authors
Citation
Bianchi, G., Falfari, S., Pelloni, P., Filicori, F. et al., "A Numerical and Experimental Study Towards Possible Improvements of Common Rail Injectors," SAE Technical Paper 2002-01-0500, 2002, https://doi.org/10.4271/2002-01-0500.Also In
References
- Imarisio, R. Ricco, M. Rossi Sebastiano, G.M. “Multiple Injection, a cost effective solution for emission reduction of Common Rail DI Diesel Engines” Aachener Kolloquium Fahrzeug-und Motorentechnik 2000
- Bianchi, G.M. Pelloni, P. Corcione, F.E. Luppino, F. “Numerical Analysis of Passenger Car HSDI Diesel Engines with 2 nd Generation of Common-Rail Injection Systems: The Effect of the Multiple Injections on Emissions” SAE Paper 2001-01-1068 2001
- Badami, M. Nuccio, P. Trucco, G. “Influence of Injection Pressure on the Performance of a DI Diesel Engine with a Common Rail Injection System” SAE Paper 1999-01-0193 1999
- Bianchi, G.M. Pelloni, P. Filicori, F. Vannini, G. “Optimization of the Solenoid valve Behavior in Common-Rail Injection Systems” SAE Paper 2000-01-2042 2000
- Bianchi, G.M. Falfari, S. Pelloni P. Filicori, F. Milani, M. “Development of a Dynamic Model for Studying the 1 st Generation of Common Rail Injectors for HSDI Diesel Engines” ICE, 2001 Capri 2001
- Renner, G. Koyannagi, K. Maly, R.R. “Effect of Common Rail Injector Design on the Emission Characteristics of Passenger Car DI Engines” Proceedings of “The fourth International Symposium COMODIA 98” 477 482 1998
- Ficarella, A. Laforgia, D. Landriscina, V. “Evaluation of Instability Phenomena in a Common Rail Injection System for High Speed Diesel Engines” SAE Paper 1999-01-0192 1999
- Funai, K. Yamaguchi T. Itoh, S. “Injection Rate Shaping Technology with Common-Rail Fuel System (ECD-U2)” SAE Paper 960107 1996
- Ganser, M.A. “Common Rail Injector with Injection Rate Control” SAE Paper 981927 1998
- Digesu P. Ficarella, A. Laforgia, D. Bruni, G. Ricco, M. “Diesel Electro-Injector: A Numerical Simulation Code” SAE Paper 940193 1994
- 1993
- Stumpp, G. Ricco, M. “Common-Rail - An Attractive Fuel Injection System for Passenger Car DI Engines” SAE Paper 960870 1996
- Boehner, W. Hummel, K. “Common Rail Injection System for Commercial Diesel Vehicles” SAE Paper 970345 1997
- Flaig, U. Polach, W. Ziegler, G. “Common Rail System (CR-System) for Passenger Car DI Diesel Engines; Experiences with Application for Series Production Projects” SAE Paper 1999-01-0191 1999
- Pierpont, D. A. Montgomery, D.T. Reitz, R. D. “Reducing Particulate and NOx Using Multiple Injections and EGR in a D.I. Diesel Engine” SAE Paper 940897 1994
- Filicori, F. Lo Bianco, C.G. Tonielli, A. “Modeling and Control Strategies for a Variable Reluctance Direct-Drive Motor” IEEE Transactions on Industrial Electronics 40 1 February 1993
- Hiroyasu, H. “The structure of fuel sprays and the combustion processes in diesel engines” ICE 31-1 1998 Fall Technical Conference ASME 1998
- Von Kuensberg Sarre, C. Kong Song-Charng Reitz, R.D. “Modeling the Effects of Injector Nozzle Geometry on Diesel Sprays” SAE Paper 1999-01-0912 1999
- Zhu, Y. Reitz, R.D. “Modeling Fuel System Performance and its Effect on Spray Characteristics” SAE Paper 2000-01-1253 2000
- Guerrassi, N. Dupraz P. “A Common-Rail Injection System For High Speed Direct Injection Engines” SAE 980803 1998
- Nehmer, D. A. Reitz, R. D. “Measurements of the Effects of Injection Rate and Split Injections on Diesel Engine Soot and NOx Emissions” SAE Paper 940668 1994
- Tow, T. Pierpont, D. A. Reitz, R. D. “Reducing Particulates and NOx Emissions by Using Multiple Injections in a Heavy Duty D.I. Diesel Engine” SAE Paper 940897 1994
- Chan, M. Das, S. Reitz, R. D. “Modeling Multiple Injection and EGR Effects on Diesel Engine Emissions SAE Paper 972864 1997
- Han, Z. Uludogan, Ali Hampson, G.J Reitz, R. D. “Mechanism and NOx Emissions Reduction Using Multiple Injection in a Diesel Engine” SAE Paper 960633 1996
- Bianchi, G.M. Pelloni, P. Corcione, F.E. Luppino, F. “On the Optimum Combustion Chamber for the 2 nd Generation of Common Rail Injection Systems” SAE 2000-01-1068 2000
- Desantes, J.M. Arrègle, J. Rodriguez, P.J. “Computational Model for Simulation of Diesel Injection Systems” SAE Paper 1999-01-0915 1999
- Blevins, J.A. Wagner, D.A. “An Experimental Investigation on Determining Diesel Injector Flow and Transient Characteristics Using High Response Pressure Measurements” SAE Paper 1999-01-0197 1999
- Herrmann, H.O. Körfer, T. “Recent and Future Developments in Diesel Engine Technology” ATA 53 2000
- Kollmann, K. “Development Trends for Diesel-Powered Passenger Cars” ATA 53 2000
- Imarisio, R. Rossi Sebastiano, G.M. “Potential of Future Common Rail DI Diesel Engines” ATA 53 2000
- Herzog, P.L. “Exhaust Aftertreatment Technologies for HSDI Diesel Engines” ATA 53 2000
- Borghi, M. Milani, M. Piraccini, M. “Dynamic Analysis of Diesel Engine Common Rail Injection System. Part I: The Injector Dynamics” ASME IMECE 2001 ASME International Mechanical Engineering Congress and Exposition November 11-16 2001 New York, USA
- Bianchi, G.M. Falfari, S. Pelloni P. Kong Song-Charng Reitz, R.D. “Numerical Analysis of High Pressure Fast-Response C.R. Injector Dynamics” SAE 2002-01-0213 March 2002