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TECHNICAL PAPERS: Injection and Fuel Air Mixture Preparation

Development of Micro-Diesel Injector Nozzles via Microelectromechanical Systems Technology and Effects on Spray Characteristics

[+] Author and Article Information
S. Baik

Department of Mechanical Engineering, University of Wisconsin-Madison, Madison, WI 53706

J. P. Blanchard, M. L. Corradini

Department of Nuclear Engineering and Engineering Physics, University of Wisconsin-Madison, 1500 Engineering Drive, Madison, WI 53706

J. Eng. Gas Turbines Power 125(2), 427-434 (Apr 29, 2003) (8 pages) doi:10.1115/1.1559901 History: Received November 01, 2001; Revised April 01, 2002; Online April 29, 2003
Copyright © 2003 by ASME
Topics: Nozzles , Sprays , Drops , Orifices , Diesel
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References

Figures

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Schematic view of nozzle cross section
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The single 40-micron orifice nozzle
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The 169-orifice nozzle with an orifice diameter of 40 microns
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Magnified view of the four triangular-shaped orifice nozzle
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Injection pressure profiles
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Drop sizes of single orifice nozzles measured using Malvern
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Transmittances of single orifice nozzles measured using Malvern
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Transmittances of single orifice nozzles measured at low injection pressures at a location 15∼25 mm from the nozzle tip using Malvern
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Drop sizes of single orifice nozzles at high injection pressures
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Spray images at high injection pressures (a) single 40-micron orifice nozzle at 4 ms (b) single 260-micron orifice nozzle at 1.5 ms
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Drop sizes of multiple orifice nozzles measured using Malvern
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Transmittances of multiple orifice nozzles measured using Malvern
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Drop sizes of multiple orifice nozzles at high-injection pressures
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Drop sizes of the single 100-micron circular orifice nozzle and the nozzles with noncircular orifices measured using Malvern
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Drop sizes of the single 100-micron circular orifice nozzle and the nozzles with noncircular orifices at high-injection pressures
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Drop sizes of shower head nozzles measured using Malvern
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Drop sizes of shower head nozzles at high-injection pressures
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Schematic diagrams of the sprays (a) single orifice nozzle (b) multiple orifice nozzle
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Drop sizes of the single 260-micron orifice nozzle and the 41-orifice nozzle with an orifice diameter of 40 micrometers
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Drop sizes of the single triangular-shaped orifice nozzle and the four triangular-shaped orifice nozzle

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