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US 2019/0346043 A1Published application
Piston ring having a stepped running surface
AssigneeFederal-Mogul Burscheid GmbH
InventorsJURGEN GILLEN, FABIAN RUCH, JORN PROPPER
Life of this patent
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Abstract
A stepped piston ring (2) includes a ring outer side (5), an upper ring flank (6), and a lower ring flank (8). The ring outer side (5) on the upper edge has a notch (10, so that only a lower portion of the ring outer side (5) forms a contact surface (4).
Claims20
A stepped piston ring (2), comprising a ring outer side (5), an upper ring flank (6), and a lower ring flank (8), wherein the ring outer side (5) on the upper edge has a notch (10), so that only a lower portion of the ring outer side (5) forms a contact surface (4).
Dependencies are inferred from the claim text.