Tenneco Gmbh

Federal-mogul Friedberg Gmbh

Federal-mogul Burscheid Gmbh

Federal-mogul Deva Gmbh

Markus Aumiller

Blair Matthew Jenness

Michael Buchmann

Peter Schmidt

Stefan Henss

Jan-Ulrich Maus

A piston ring includes an annular body, a wear-resistant layer that is applied to the annular body by thermal spraying, and a strain-hardened run-in layer, made of an AlCuFe alloy, that is applied to the wear-resistant layer by thermal spraying.

Piston ring with shot-peened running-in layer and method for the production thereof

An insert for a cylinder liner which is capable of trapping heat in the combustion chamber is provided. The insert extends circumferentially around a center axis and longitudinally from an upper end to a lower end. The insert includes an inner portion presenting an inner surface facing the center axis and an outer portion presenting an outer surface facing away from the center axis. The inner portion is formed of an iron-based material, such as steel, and the outer portion is formed of a material having a thermal conductivity of not greater than 3.5 W/mK, for example ceria stabilized zirconia. The inner and outer portions each present a thickness, and the thickness can form a gradient between the upper end and the lower end of the insert. For example, the thickness of the outer portion can be greater at the upper end than at the lower end of the insert.

Thermal barrier cylinder liner insert

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Friedberg, Germany

Markus Aumiller