This paper describes measurements of oil film thickness of piston ring packages which have different oil control rings. The oil film thickness measurements were taken at three points, namely, the piston thrust side, front side and rear side, by the Laser Induced Fluorescence Method(LIF). One of the main findings is that the oil film thickness on the thrust side varies greatly from cycle to cycle, while cyclic variations are smaller on the front and rear sides. This difference is due to the smaller inclination of the oil control rings on the front and rear sides, compared with that on the thrust side. It is also found that oil consumption has a good correlation with oil film thickness on the thrust side and that the thrust side oil film thickness becomes thinner as the oil ring becomes narrower.
The Effect of Oil Ring Geometry on Oil Film Thickness in the Circumferential Direction of the Cylinder
Sae Technical Papers
International Fall Fuels and Lubricants Meeting and Exposition ; 1998
19.10.1998
Aufsatz (Konferenz)
Englisch
Measurement of Oil-Film-Thickness Between Piston Ring and Cylinder
Kraftfahrwesen | 1983
|Technique for experimental evaluation of piston ring-cylinder film thickness
Kraftfahrwesen | 1983
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