Piston Ring Lubrication and Cylinder Bore Wear Analyses, Part II—Theory Verification

[+] Author and Article Information
L. L. Ting, J. E. Mayer

Scientific Research Staff, Ford Motor Co., Dearborn, Mich.

J. of Lubrication Tech 96(2), 258-266 (Apr 01, 1974) (9 pages) doi:10.1115/1.3451941 History: Received July 02, 1973; Online October 18, 2010


Based on the analytical method presented in the previous paper (Part I), comparisons of predicted wear curves along the major and minor side-thrust sides of the cylinder bore are made with the measured ones obtained from several truck engines for various vehicle mileages. The agreement was found to be good. This indicates the analytical model developed in Part I is relevant and suitable for predicting the severity of piston-ring bore contact for varying engine operating and lubrication conditions. From this, the necessary parameter changes may be found such that the wear rate of the cylinder bore may be reduced. Wear factor data, however, must be available in order to make quantitative predictions of wear. The model ultimately may be useful also in the design optimization of engine components. Since the method is general, it also can be applied to other reciprocating piston devices, such as gas compressor, Rankine cycle engine, or Stirling engine.

Copyright © 1974 by ASME
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