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Analysis of Consecutive Fuel Injection Rate Signals Obtained by the Zeuch and Bosch Methods
ISSN: 0148-7191, e-ISSN: 2688-3627
Published March 01, 1993 by SAE International in United States
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The injection rate signals from a commercial diesel fuel injection system, based on a distributor pump driven by a DC motor, were characterised independently and consecutively by two injection rate meters based on the Zeuch and Bosch methods. The signals were first analysed in terms of their shot-to-shot variations over 64 consecutive injections and the correlations between needle lift and injection rate over a range of pump speeds and loads quantified by Fast Fourier Transform.
A direct comparison of the injection rate signals on a cycle-resolved basis was achieved by connecting two consecutive injectors from the pump-line-nozzle injection system to a Bosch- and a Zeuch-based injection rate meters. The signals were acquired over a large number of injections in terms of mean and rms of the injected quantity, mean injection rate, maximum injection rate, average cumulative fuel injected and average injection duration.
The results showed that in general the two methods provide an accurate estimate of the injected quantity per injection but that the injection rate signal is sensitive to the cut-off frequency selected for signal processing. Each of the two methods has advantages and disadvantages which are described and quantified for three pump operating conditions.
CitationArcoumanis, C. and Baniasad, M., "Analysis of Consecutive Fuel Injection Rate Signals Obtained by the Zeuch and Bosch Methods," SAE Technical Paper 930921, 1993, https://doi.org/10.4271/930921.
- Burman P.G. Deluca F. “Fuel Injection and Controls for Internal Combustion Engines” Tech. Press Ltd. 1962
- Matsuoka S. Wokota K. Kamimoto T. “The Measurement of Injection Rate” 184 1969-70 87 94
- Wehrma R.J. Mitchell H.R. Turunen W.N. “Measuring Rate of Fuel Injection in an Operating Diesel Engine” SAE Paper, SAE Annual meeting, Detroit 1953
- Zeuch W. “Neure ver Fahen Zurmessug des Einpritzgesetezen undder Einpritz Regelmabigkeit von Diesel Einspritzpumpen” 1961
- Komaroff I. Melcher K. “The Fuel Quantity Indicator : A New Measuring Device for Volumetric Evaluation of Individual Fuel Injection Quantities” SAE Paper 660750 1966
- Bosch W. “The Fuel Rate Indicator : A New Measuring Instrument for Display of the Characteristics of Individual Injection” SAE Paper 660749 1966
- Takamura A. Fukushima S. Omori Y. “Development of a New Measurement Tool for Fuel Injection Rate in Diesel Engines” SAE Paper 890317 1989
- Ahmad M.S. Wallace A.J. “Injector Nozzle Drilling by EDM” IMechE Seminar on Diesel Fuel Injection Systems April 1992
- Marcic M. “Measuring the Injection Rate in Diesel Multi-Hole Nozzles” SAE Paper 901670 1990
- Arcoumanis C. Fairbrother R. “Computer Simulation of Fuel Injection Systems for Dl Diesel Engines” SAE Paper 922223 1992
- Bower G.R. Foster D.E. “Data from Variable Rate Shape High Pressure Injection System Operating in an Engine-Fed Constant-Volume Combustion Chamber” SAE Paper 902082 1990
- Takamura A. Ohta T. Fukushima S. “A Study on Precise Measurement of Diesel Fuel Injection Rate” SAE Paper 920630 1992
- Arcoumanis C. Baniasad M.S. “Measurement and Analysis of Injection Rate Variation in Diesel Engines” IMechE Seminar on Diesel Fuel Injection Systems April 1992