Schaeffler Technologies Ag & Co .Kg

Frank Bolte

Oliver Schnell

Peter Sailer

Serge Kursawe

Franz Huschka

Thomas Weitkamp

Stefan Hubel

Nikolay Podgaynyy

Thomas König

A pivot bearing (), includes a metallic first bearing element () made of steel, which is at least partially coated by means of a coating (), a metallic second bearing element () made of steel, which is coated with a PTFE-containing sliding lining (), wherein the coating () and the sliding lining () are in sliding contact, and wherein the coating () comprises at least one first layer () deposited on the first bearing element () by means of a PVD, CVD, or PECVD method, wherein the coating () also comprises at least one further layer which is arranged on the at least one first layer () and faces away from the first bearing element ().

Pivot bearing

A four-stroke internal combustion engine, having a brake controller by which pressure is built up in the exhaust system and/or at least one exhaust valve is additionally opened is provided. A hydraulic valve clearance compensation element is incorporated in at least one transmission element between the camshaft and at least one intake and exhaust valve and has at least one piston (), a cylinder housing part () that interacts with the piston (), a return spring () disposed therebetween, a check valve (), and an actuatable locking device is provided which limits the movement of the piston () relative to the cylinder housing part () and/or limits the movement of the cylinder housing part () relative to an exterior housing () connected to one of the transmission elements or relative to a transmission element at least in one direction of movement, and the piston () is supported on a stop element () connected to the exterior housing () or the transmission element.

Reciprocating-piston internal combustion engine with engine brake and additional opening of an exhaust valve

Growing community of inventors

Melle, Germany

Frank Bolte