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Cavitation Effects and Transient Behavior for the Control Valve of a High-Pressure Diesel Injection System
ISSN: 0148-7191, e-ISSN: 2688-3627
Published May 07, 2001 by SAE International in United States
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Shaping the injection rate in Diesel engines influences combustion and emissions. Fluid-dynamic steady-state characteristics and transient response of the control valve of high-pressure, electronically controlled, injection systems are important factors for the control of the shape, duration and timing of the injection, especially during pilot injections.
Computed results, obtained using a model to predict the cavitation behavior of the control valve of a high-pressure fuel injection system for Diesel engine, are presented. The numerical investigation has been made using different cavitation models, involving the hypothesis of a barotropic cavitation, or fluid dynamic model with non-equilibrium cavitation modeling.
As a result, the computed mass flow values were compared with the experimental data. Calculations have been performed to investigate the influence of the transient development of the cavitation. The calculations showed that the control valve operate in transient conditions, especially during pilot injections.
- Maria G. De Giorgi - University of Lecce, Dept. Engineering for Innovation, Research Center for Energy and Environment (CREA)
- Antonio Ficarella - University of Lecce, Dept. Engineering for Innovation, Research Center for Energy and Environment (CREA)
- Hermann Breitbach - Delphi Automotive Center, Delphi Technical Centre
CitationDe Giorgi, M., Ficarella, A., and Breitbach, H., "Cavitation Effects and Transient Behavior for the Control Valve of a High-Pressure Diesel Injection System," SAE Technical Paper 2001-01-1979, 2001, https://doi.org/10.4271/2001-01-1979.
SAE 2001 Transactions Journal of Fuels and Lubricants
Number: V110-4 ; Published: 2002-09-15
Number: V110-4 ; Published: 2002-09-15
- Stumpp G., Ricco M.: “Common Rail - An Attractive Fuel Injection System for Passenger Car Diesel Engines”, SAE Paper 960870, 1996.
- Kohketsu S., Mori K., Kato T., Sakai K.: “Technology for Low Emission, Combustion Noise and Fuel Consumption on Diesel Engine”, SAE Paper 940672, 1994.
- Erlach H., Chmela F., Cartellieri W., Herzog P.: “Pressure Modulated Injection and Its Effects on Combustion and Emissions of a HD Diesel Engine”, SAE Paper 952059, 1995.
- Ficarella A., Laforgia D., Landriscina V.: “Evaluation of Instability Phenomena in a Common Rail Injection System for High Speed Diesel Engines”, SAE Tech. Paper 1999-01-0192, 1999.
- Arcoumanis C., Whitelaw J.H.: “Is Cavitation Important in Diesel Engine Injector?”, THIESEL 2000 Thermofluidynamic Processes in Diesel Engines, Valencia (Spaign), September 13-15, 2000.
- Ficarella A., Laforgia D.: “Experimental and Numerical Investigation on Cavitating Flows in Diesel Injection Systems”, Meccanica, 33, 407-425, 1998.
- Schmidt D., Rutland C. J., Corradini M. L.: “A Numerical Study of Cavitating Flow Through various Nozzle Shapes”, SAE Tech. Paper 971597, 1997.
- Kato M., Kano H., Date K., Oya T., Niizuma K.: “Flow Analysis in Nozzle Hole in Consideration of Cavitation” SAE Tech. Paper 970052, 1997.
- De Giorgi M. G., Ficarella A., Genco C., Laforgia D.: “Cavitation Modeling to understand the Behavior of Control Systems”, Proceedings of ESDA 2000 5th Biennal Conference on Engineering Systems Design and Analysis, Montreux, Switzerland, July 10-13, 2000.
- De Giorgi M.G, Ficarella A., Landriscina V., Barthelet P., Genco C.: “Modeling of Cavitation and of the Related Behavior of the Control Valve in a Fuel Injection System”, 55th ATI Congress, September 15/20, 2000, Bari-Matera, Italy.
- Grogger H., Alajbegovic A.: “Calculation of the Cavitating Flow in Venturi Geometries using Two Fluid Model”, ASME Fluids Engineering Division Summer Meeting, Washington DC, USA, 21-25 June, 1998.
- Wang Y.C., Brennen C.E.: “One-Dimensional Bubbly Cavitating Flows Through a Converging-Diverging Nozzle”, J. of Fluids Engineering, 120, 166-170, 1998.
- Ishii: “Thermo-fluid Dynamic Theory of Two Phase Flow”, Eyrolles, 1975.
- Deligiannis P., Cleaver J. W.: “The Role of Nucleation in the Initial Phases of s Rapid Depressurisation of a Sub-cooled Liquid”, Int. J. Multiphase Flow, 16, 975-984, 1990.