151751 ⎘
Piston-rings, e.g. non-metallic piston-rings , seats therefor; Ring sealings of similar construction using separate springs or elastic elements expanding the rings; Springs therefor ; Expansion by wedging; Rings with a flat annular side rail; Spring expander from sheet metal corrugated in the radial direction
Multi-piece oil scraper ring with reduced friction
#2Oil control ring and spacer expander
#3Combination oil ring
#4Three-piece oil ring and combination of the three-piece oil ring and piston
#5Oil-control ring of piston