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Common Feeding Injection System Equipped with Reduced-Leakage Solenoid Injectors
Technical Paper
2014-01-2735
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
A numerical-experimental analysis of a new generation Common Feeding (CF) fuel injection system, equipped with last generation solenoid injectors that feature pressure-balanced pilot-valves, has been developed.
The main feature of the CF system is that it removes the accumulator from the high-pressure layout of the standard Common Rail (CR). In the CF apparatus, the high-pressure pump is connected directly to the injectors, and a small accumulation volume is integrated in the pump high-pressure circuit. The hydraulic performance of the CF system, including the injectors with the pressure-balanced pilot-valve, has been compared with that of the standard CR system in terms of injected masses, fuel leakages, high-pressure and injected flow-rate time histories.
A previously developed advanced one-dimensional code for CR type systems has been adapted for the simulation of the CF high-pressure layout. Furthermore, electromagnetic, hydraulic and mechanical submodels have been set up for the pressure-balanced pilot-valve simulation. This new pilot-valve configuration is aimed at reducing injector fuel leakages and at improving the dynamic response of the needle to the electrical command.
The complete numerical model of the CF system has been validated by means of comparison with experimental data that have been acquired at the hydraulic test bench. Hence, the validated model has been applied to investigate the internal fluid-dynamics of the pressure-balanced solenoid injector, when inserted into the CF setup, as well as the effects of some design modifications in the high-pressure hydraulic circuit of the CF system.
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Citation
Ferrari, A., Pizzo, P., and Paolicelli, F., "Common Feeding Injection System Equipped with Reduced-Leakage Solenoid Injectors," SAE Technical Paper 2014-01-2735, 2014, https://doi.org/10.4271/2014-01-2735.Also In
References
- Mulemane , A. , Han , J. , Lu , P. , Yoon , S. et al. Modeling Dynamic Behavior of Diesel Fuel Injection Systems SAE Technical Paper 2004-01-0536 2004 10.4271/2004-01-0536
- Bianchi , G. , Falfari , S. , Brusiani , F. , Pelloni , P. et al. Numerical Investigation of Critical Issues in Multiple-Injection Strategy Operated by a New C.R. Fast-Actuation Solenoid Injector SAE Technical Paper 2005-01-1236 2005 10.4271/2005-01-1236
- Beierer , P. , Huhtala , K. , Lehto , E. , and Vilenius , M. Study of the Impact of System Characteristics on Pressure Oscillations in a Common Rail Diesel Fuel Injection System SAE Technical Paper 2005-01-0910 2005 10.4271/2005-01-0910
- Su , W. , Wang , Y. , Lin , T. , Xie , H. et al. A Study of Effects of Design Parameters on Transient Response and Injection Rate Shaping for a Common Rail Injector System SAE Technical Paper 2001-01-3506 2001 10.4271/2001-01-3506
- Jorach , R.W. , Bercher , P. , Meissonnier , G. , Milanovic , N. Common Rail system from Delphi with solenoid valves and single plunger pump MTZ 03 2011 72
- Park Su Han , Yoon Seung Hyun , Lee Chang Sik 2011 Effects of multiple-injection strategies on overall spray behavior, combustion and emissions reduction characteristics of Biodiesel fuel Applied Energy 88 1 88 98
- Bianchi , G. , Falfari , S. , Brusiani , F. , Pelloni , P. et al. Advanced Modelling of a New Diesel Fast Solenoid Injector and Comparison with Experiments SAE Technical Paper 2004-01-0019 2004 10.4271/2004-01-0019
- Bianchi , G. , Falfari , S. , Parotto , M. , and Osbat , G. Advanced Modeling of Common Rail Injector Dynamics and Comparison with Experiments SAE Technical Paper 2003-01-0006 2003 10.4271/2003-01-0006
- Shinoara , Y. et al. 2011 3000 bar Common Rail systems MTZ Motortechnische Zeitschrift 72 1 4 9
- 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 10.4271/2002-01-0500
- Catania , A.E. , Ferrari , A. , Manno , M. , Spessa , E. Experimental Investigation of Dynamics Effects on Multiple-Injection Common Rail System Performance ASME Transactions, Journal of Engineering for Gas Turbines and Power 2008 130 3 032806 032806-13
- Catania , A.E. , Ferrari , A. , Manno , M. Development and Application of a Complete Multijet Common-Rail Injection System Mathematical Model for Hydrodynamic Analysis and Diagnostics ASME Transactions, Journal of Engineering for Gas Turbines and Power 130 6 062809 062809-13 2008
- Ferrari A. , Mittica A. , Spessa E. Benefits of hydraulic layout over driving system in piezo-injectors and proposal of a new-concept CR injector with an integrated Minirail Applied Energy 103 243 255 2013
- Arpaia , A. , Catania , A. , Ferrari , A. , and Spessa , E. Development and Application of an Advanced Numerical Model for CR Piezo Indirect Acting Injection Systems SAE Technical Paper 2010-01-1503 2010 10.4271/2010-01-1503
- Oh , B. , Oh , S. , Lee , K. , and Sunwoo , M. Development of an Injector Driver for Piezo Actuated Common Rail Injectors SAE Technical Paper 2007-01-3537 2007 10.4271/2007-01-3537
- Oki , M. , Matsumoto , S. , Toyoshima , Y. , Ishisaka , K. et al. 180MPa Piezo Common Rail System SAE Technical Paper 2006-01-0274 2006 10.4271/2006-01-0274
- Ferrari A. , Mittica A. FEM Modeling of the Piezo Electric Drive System in the Design of Direct-Acting Diesel Injectors Applied Energy 99 471 483 2012
- Delphi Automotive Direct acting light-duty Diesel CR system Technical report 2008
- Pfeifer , A. , Wenzlawski , K. , Passilly , L. , Kastner , O. , Demortier , B. A new piezo CR injector with direct drive and closed loop functionality: concept and enginebenefits Int. conference on Diesel engines Rowen May 2008
- Catania , A.E. , Ferrari , A Development and performance assessment of the new-generation CF fuel injection system for diesel passenger cars Applied Energy 91 1 483 495 2012
- Baratta , M. , Catania , A.E. , Ferrari , A. Hydraulic Circuit Design Rules to Remove the Dependence of the Injected Fuel Amount on Dwell Time in Multijet CR systems ASME Transactions, Journal of Fluids Engineering 130 12 121104 121104-13 2008
- Spinnler , F. , Zanetti C. High-pressure injection system Patent application no. US 2002/0017278A1; 2002
- Bosch , W. The Fuel Rate Indicator: A New Measuring Instrument For Display of the Characteristics of Individual Injection SAE Technical Paper 660749 1966 10.4271/660749
- Catania , A.E. , Ferrari , A. Experimental analysis modeling and control of volumetric radial piston pumps ASME Transactions, Journal of Fluids Engineering 133 081103-1 081103-12 2011
- Catania , A. and Ferrari , A. Advanced Mathematical Modeling of Electronic Unit-Injector Systems for Heavy Duty Diesel Engine Application SAE Int. J. Commer. Veh. 1 1 134 151 2008 10.4271/2008-01-1195
- Catania , A.E. , Ferrari , A. , Spessa , E. Numerical-Experimental Study and Solutions to Reduce Dwell Time Threshold for Fusion Free Consecutive Injections in a Multijet Solenoid-Type C.R. System ASME Transactions, Journal of Engineering for Gas Turbines and Power 2009 131 3 022804-1
- Huber , B. and Ulbrich , H. Modeling and Experimental Validation of the Solenoid Valve of a Common Rail Diesel Injector SAE Technical Paper 2014-01-0195 2014 10.4271/2014-01-0195