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AssigneeDr. Ing. h.c.F. Porsche Aktiengesellschaft
InventorsKlaus Groeger, Dietmar Schwarzenthal
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A cylinder head for a valve-controlled internal combustion engine with a cylinder head housing, in which there are bearing blocks for the inlet or outlet camshaft. At least one camshaft has a camshaft adjuster, by way of which the position of the drive wheel of the camshaft can be changed relative to the axis of rotation of the camshaft. At least the bearing block, which is provided next to the camshaft adjuster and is intended for the camshaft, exhibits a segment, whose width is reduced owing to a recess for the screw connection of the cylinder head housing. The bearing site, arranged next to the camshaft adjuster, provides a bearing sleeve for the camshaft, in such a manner that the segment of the bearing block that is provided with a reduced bearing block width is expanded to the actual bearing block width. The sleeve exhibits openings to supply oil for the camshaft adjuster. Force-fed oil can be fed to the camshaft adjuster by way of the bearing sleeve over the bearing block, which is arranged next to the camshaft adjuster, despite the bearing block's recesses, which reduce its bearing width.
A bearing block for a camshaft with a camshaft adjuster, said bearing block being arranged adjacent the camshaft adjuster and including a reduced width segment and a bearing sleeve for the camshaft to expand the bearing block in an area of the reduced width segment, wherein the bearing sleeve includes openings to supply oil for the camshaft adjuster.
A cylinder head for a valve-controlled internal combustion engine comprising:
A method of making a cylinder head for a valve-controlled internal combustion engine having at least one camshaft and a camshaft adjuster to axially position a drive wheel of the camshaft, comprising the acts of:
Dependencies are inferred from the claim text.