Federal-mogul Burscheid Gmbh

Thomas Bastuck

Richard Mittler

Dirk Bärenreuter

Markus Kellner

Florian Böhnke

Eugen Haaf

A three-part oil scraper ring includes an upper scraper ring (), a lower scraper ring (), wherein the scraper rings () are held at a distance by an expander spring () and pressed radially outwards. The upper scraper ring () has a ring body () having an upper flank (), a lower flank (), a ring inner surface () and a ring outer surface () which has a ring outer contour () in cross-section in axial direction (A). The ring body () has a height H which, when viewed in axial direction (A), corresponds to the greatest distance of the upper flank () from the lower flank (). The ring outer contour () forms a running surface () which has a radius of curvature R which is smaller than the height H of the upper scraper ring () by a factor between 1.5 to 6.

Growing community of inventors

Düsseldorf, Germany

Thomas Bastuck