Daimler Ag

Christian Russer

Patrick Izquierdo

Wolfgang Pellkofer

Johann Kraemer

Dirk Becker

Marcus Brand

Piston pin for a connecting rod in a reciprocating internal combustion engine, wherein the piston pin carries at least in the area of the running surface a thermal sprayed slide layer of a metallic bearing material or slide bearing material, as well as reciprocating internal combustion engine with a connecting rod with small and with large connecting rod eye, wherein at least the running surface of one of the piston pins is formed of a thermal sprayed slide layer of a metallic bearing material, which exhibits a lower hardness than the running surface of the corresponding connecting rod eye and process for manufacturing a described piston pin with the steps of a extrusion molding or machining a piston pin preform, introduction of a recess in the area which will later become the running surface, roughening the outer surface in the area of the recess, application of a coating of a bearing material by a thermal spray process.

Piston pin with slide layer for connecting rod eye for internal combustion engines

Bearing shell of a connecting rod which is located in the larger connecting rod eye in which the bearing shell is constituted by several thermally sprayed layers and the topmost material layer of the bearing shell is essentially constituted by an aluminum/bismuth alloy as well as a bearing shell of a connecting rod which is at least located in the larger connecting rod eye in which the entire bearing shell is essentially constituted by a thermally sprayed layer of aluminum/bismuth alloy and process for the fabrication of a bearing shell on a connecting rod eye with the steps mechanical roughening of the connecting rod surface in the region of the bearing, thermal coating onto the surface with a bearing metal or a bearing material to build up a bearing layer and thermal coating onto the bearing layer with an Al/Bi alloy to build up a sliding layer, as well as a process for the fabrication of a bearing shell on a connecting rod eye with the steps mechanical roughening of the connecting rod surface in the region of the bearing and thermal coating onto the surface with an Al/Bi alloy to build up a bearing and sliding layer.

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Ulm, Germany

Christian Russer