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Fuel Flow Impingement Measurements on Multi-Orifice Diesel Nozzles
Technical Paper
2006-01-1552
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
The injection process plays an important role in Diesel engines in terms of future emission legislations. Higher injection pressures and multiple injection events every cycle are a reality. To be able to understand how the fuel injection process can be further improved studies are needed on how higher pressure, multiple injections and multi orifice nozzles affect the overall process. The objective of this study was to further develop a measurement technique to determine injection rates and discharge coefficient for multi orifice nozzles. The technique used is based on measuring the instantaneous force of a fuel jet for a non-stationary injection process.
The technique is applicable for multi orifice nozzles at high injection pressures. Both single and multiple injections can be resolved. The accuracy of the technique depends on the distance between the sensor and orifice, and the sensor should be mounted as close as possible to the orifice, which can be a problem for multi orifice nozzles. This is less difficult for higher injection pressures. A comparison between the flow of an injector used in an engine that was measured with the impingement technique showed that the difference in total flow was less than 3 %. The impingement also showed great differences between the holes.
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Husberg, T., Manente, V., Ehleskog, R., and Andersson, S., "Fuel Flow Impingement Measurements on Multi-Orifice Diesel Nozzles," SAE Technical Paper 2006-01-1552, 2006, https://doi.org/10.4271/2006-01-1552.Also In
References
- Zeuch, W. 9 1961 344 349
- Bosch, W. “The Fuel Rate Indicator: A New Measuring Instrument for Display of the Characteristics of Individual Injection” SAE Paper 660749 1966
- Ryan, T.W. “Measurement of the Instantaneous Distribution of Momentum in Diesel Injection Nozzle Fuel Jets” SAE Paper 962004 1996
- Ganippa, L.C. Andersson, S. Chomiak, J. “Transient Measurements of Discharge Coefficient of Diesel Nozzles” SAE Paper 2000-01-2788 2000
- Ehleskog, R. Andersson, S. “Numerical and Experimental Investigation of Fuel Properties Influence on the Dynamic Behaviour of a Diesel Injection System” VAFSEP 2004 Dublin 2004