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TECHNICAL PAPERS—SPECIAL ICE SECTION: In-Cylinder Processes

Intake Flow Structure and Swirl Generation in a Four-Valve Heavy-Duty Diesel Engine

[+] Author and Article Information
Kern Y. Kang

Engine R&D Dept., Korea Institute of Machinery and Materials, P.O. Box 101, Yusung, Taejon, Koreae-mail: kykang@mailgw.kimm.re.kr

Rolf D. Reitz

Engine Research Center, University of Wisconsin-Madison, Madison, WI 53706e-mail: reitz@engr.wisc.edu

J. Eng. Gas Turbines Power 122(4), 570-578 (May 09, 2000) (9 pages) doi:10.1115/1.1290149 History: Received November 23, 1998; Revised May 09, 2000
Copyright © 2000 by ASME
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References

Figures

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Schematics of experimental setup for LDV measurements using a flow bench
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Four different intake port configurations of a four-valve engine: (a) standard port; (b) swirl port; (c) anti-swirl port; (d) tumble port.
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Swirl meter and measurement principle using laser light: (a) layout of swirl meter; (b) principle of rotation angle measurement using a deflected laser beam.
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Swirl and flow coefficients for the different intake ports
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(a) Axial velocities and turbulence intensities in the standard engine (intake valve lift 11 mm, dP = 221 mm H2O, mean velocity 8.7 m/s); (b) swirl velocities and turbulence intensities in the standard engine (intake valve lift 11 mm, dP = 221 mm H2O).
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(a) Axial velocities and turbulence intensities in the swirl port engine (intake valve lift 11 mm, dP = 221 mm H2O, mean velocity 7.8 m/s); (b) swirl velocities and turbulence intensities in the swirl port engine (intake valve lift 11 mm, dP = 221 mm H2O).
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(a) Axial velocities and turbulence intensities in the anti-swirl port engine (intake valve lift 11 mm, dP = 221 mm H2O, mean velocity 7.6 m/s); (b) swirl velocities and turbulence intensities in the anti-swirl port engine (intake valve lift 11 mm, dP = 221 mm H2O).
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(a) Axial velocities and turbulence intensities in the tumble port engine (intake valve lift 11 mm, dP = 221 mm H2O, mean velocity 6.7 m/s); (b) swirl velocities and turbulence intensities in the tumble port engine (intake valve lift 11 mm, dP = 221 mm H2O).
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(a) Swirl moment comparison with those obtained by LDV data (dP = 221 mm H2O); (b) swirl moment comparison with those obtained by LDV data (dP = 462 mm H2O).
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Photographs of intake flow visualization for the different intake ports: (a) standard port; (b) swirl port; (c) anti-swirl port; (d) tumble port.

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