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US 8,770,590 B2Granted
Oil control ring
AssigneeFederal-Mogul Burscheid GmbH
InventorPeter Esser
Life of this patent
Estimating the term…
Abstract
An oil scraper piston ring includes a ring body having two radial outer running webs on the ring body, which are arranged one behind the other in relation to the run direction of the piston and are spaced apart from one another by an external depression. Each running web respectively has two scraper lips and a wear protection coating is provided on each scraper lip.
Claims15
An oil scraper piston ring, comprising:
- a ring body;
- two radial outer running webs on the ring body, which are arranged one behind the other in spaced apart relation from one another by an external depression;
- wherein each running web, respectively, has two scraper lips;
- and
- a wear protection coating covering the running surface of each scraper lip.
2 more elements
Dependencies are inferred from the claim text.