Federal-Mogul Burscheid Gmbh

Manfred Muller

Manfred Fischer

Richard Mittler

Steffen Hoppe

Ralf Lammers

Christiane Bauer

Thomas Schulte-Sasse

Reiner Waller

A multi-part piston ring, containing an at least single-part spring support which is provided with a piston ring joint region and an at least single-part spring element, which is positioned in a groove provided in the region of the inner circumferential face of the spring support, wherein the wall thickness of the spring support is essentially equal in the region of the ends of the spring support facing the piston ring joint and in the rear region of the spring support, and a pocket which extends over a circumferential range of at least 60&#xb0; and is created by local reduction of the wall thickness of the spring support is provided in each case between the rear region and the piston ring joint ends.

Multi-part piston ring

A sliding element comprises at least one surface for sliding contact with a running face, wherein a wear layer and a run-in layer made from carbon are applied to the surface, and is characterized in that the run-in layer comprises hydrogen and nanocrystalline carbide phases. In a method for manufacturing a sliding element, the run-in layer is applied by means of a PVD process. A sliding system has an above-described sliding element and a body having a running face. A coating for a sliding element comprises a wear layer which can be applied to the upper side of the sliding element, and a run-in layer which is configured as a carbon layer, and is characterized in that the run-in layer comprises hydrogen and nanocrystalline carbide phases.

Sliding element, in particular piston ring, method for manufacturing a sliding element, sliding system and coating for a sliding element

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Burscheid, Germany

Manfred Muller