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Abstract
A criterion for piston ring conformability to distorted cylinders is described. The criterion allows one to quantify magnitudes and order of bore distortions regarding the piston ring conformability. By comparing magnitudes of distortions which are critical relative to conformability with the magnitudes of actual distortions, determined through Fourier analysis of bore profile, the quality of piston ring/cylinder interface (expressed in terms of conformability/non-conformability of the piston rings) can be evaluated. The criterion was developed based upon the understanding that curvatures of the bore profile and of the piston ring running band are equal at full conformability of the ring to the cylinder bore. A description of the bore profile by random function was instrumental in development of the criterion and yielded opportunity for the presentation of the piston ring conformability problem in a statistical aspect that is important for quality control operations. The critical-to-conform-ability values of bore distortions were obtained with the aid of a general theory of piston rings.
Presented at the 44th Annual Meeting In Atlanta, Georgia May 1–4, 1989
Notes
Presented at the 44th Annual Meeting In Atlanta, Georgia May 1–4, 1989
