Mahle International Gmbh

Torsten Schellhase

Stefan Ruppel

Andreas Enderich

Jürgen Stehlig

Klaus Beetz

Hartmut Sauter

Robert Dunsch

Ulrich Hütter

The present invention relates to a cylinder head cover () for covering a cylinder crank case () of an internal combustion engine. It is essential to the invention here that at least one bearing upper part () for a camshaft () has at least one through-opening (), which is in alignment on the one hand with a screw-in/through-opening () in a bearing lower part () and/or with a screw-in opening () in the cylinder crank case () and on the other hand with a through-opening () in the cylinder head cover (), so that it is possible to fasten the cylinder head cover () and the bearing upper part () on the cylinder crank case () by means of a shared fastening screw (), in which the cylinder head cover () is produced from a material which has different material characteristics from the at least one bearing upper part ().

Cylinder head cover

A centrifugal oil mist separator device integrated into an axially hollow camshaft of an internal combustion engine should permit a good separation effect. To this end, a device is provided whereby

Centrifugal oil mist separation device integrated in an axial hollow shaft of an internal combustion engine

The invention relates to a cylinder head () of an internal combustion engine with a camshaft bearing mechanism () situated thereon in which a hollow camshaft () is rotatably mounted, forming an outlet for discharging blow-by gases laden with oil droplets out of the crankcase and is designed as an oil droplet separator for separating the oil content out of these gases. The camshaft () passes through a valve space (). A rocker cover () or a multichannel device () is connected axially to at least one end of the camshaft (), forming an axial gap (), each having a channel () connected coaxially to the hollow space () of the camshaft () so that blow-by gases from which the oil has been removed can be discharged from the camshaft (), and each being designed so that they either form an oil collecting space () that is sealed with respect to the valve space () or they introduce oil that has been separated into such an oil collecting space ().

Cylinder head of an internal combustion engine

Growing community of inventors

Vaihingenenz, Germany

Torsten Schellhase