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RESEARCH PAPERS

Improving Tribological Performance of Piston Rings by Partial Surface Texturing

[+] Author and Article Information
Y. Kligerman, I. Etsion, A. Shinkarenko

Department of Mechanical Engineering, Technion–Israel Institute of Technology, Haifa, 32000, Israel

J. Tribol 127(3), 632-638 (Jun 13, 2005) (7 pages) doi:10.1115/1.1866171 History: Received November 01, 2004; Revised November 10, 2004; Online June 13, 2005
Copyright © 2005 by ASME
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References

Figures

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Piston ring, cylinder liner, and film thickness cross-section
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Dimensionless average friction force, Ff, versus area density, Sp, for various textured portion values, γ
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Dimensionless average friction force, Ff, versus textured portion, γ
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Dimensionless average friction force, Ff, versus dimensionless dimple depth, εc, for various bearing numbers, Λ1
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Optimum dimensionless dimple depth, ε(c)opt, versus bearing number, Λ1, for various ring width, W, values
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Dimensionless average friction force, Ff, versus dimensionless dimple depth, εc, for various external pressures, Pe
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Dimensionless average friction force, Ff, versus dimensionless dimple depth, εc, for various ring widths, W
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Dimensionless average friction force, Ff, versus dimple aspect ratio, ε=hp/(2rp), for fully textured piston ring with various width, W
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A geometrical model of a laser textured surface: (a) dimples distribution and (b) individual cell with a single dimple
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Different locations of the textured zone: (a) symmetrically in the center; (b) symmetrically at both ends; and (c) arbitrarily at a distance d from the ring center
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Segments of piston rings: (a) fully textured and (b) partially textured

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