Bearing block
AssigneeMahle International GmbH
InventorsMichael Kreisig, Falk Schneider, Stefan Steichele, Justus Himstedt, Thomas Flender
Life of this patent
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Abstract
A bearing block may support a camshaft on a cylinder head of an internal combustion engine. The bearing block is formed in one-piece and is provided with an annular closed bearing eye for the camshaft. Thus, the bearing block may be made smaller and thus lighter.
Claims18
A bearing block for supporting a camshaft on a cylinder head of an internal combustion engine wherein the bearing block is formed in one-piece and is provided with an annular, closed bearing eye for the camshaft;
- and a damping element arranged at a radially external surface defined by the bearing block and facing towards the cylinder head, the damping element contacting the bearing block on one end and the cylinder head on another end, wherein the damping element defines a sandwich structure including a plurality of layers, and each layer is configured to reduce a vibration transferred between the bearing block and the cylinder head corresponding with the internal combustion engine in a running condition.
A bearing block for supporting a camshaft on a cylinder head of an internal combustion engine wherein the bearing block is formed in one-piece and defines a radially external surface facing the cylinder head, wherein the bearing block is provided with an annular, closed bearing eye for the camshaft, and a damping element configured to be secured between the bearing block and the cylinder head, and the damping element defining a sandwich structure including a plurality of layers arranged overlaying one another in a direction of the cylinder head, and each of the plurality of layers is configured to reduce a vibration corresponding with the internal combustion engine in a running condition, and wherein the plurality of layers includes at least a central damping layer and two outer damping layers on radially opposing sides of the central damping layer, and each of said outer damping layers being thinner than said central damping layer, wherein one of the two radially outer damping layers is arranged on the external surface of the bearing block and the other of the two radially outer damping layers is arranged on the cylinder head.
An internal combustion engine, comprising:
- a cylinder head;
- a bearing block for supporting a camshaft on the cylinder head, the bearing block formed in one-piece and including an annular, closed bearing eye for mounting the camshaft;
- a damping element arranged between the bearing block and the cylinder head configured to reduce a vibration transferred between the bearing block and the cylinder head corresponding with the internal combustion engine in a running condition, the damping element contacting the bearing block on one end and the cylinder head on another end;
- and wherein the damping element defines a sandwich structure including a plurality of layers arranged overlying one another in a direction of the cylinder head, each of the plurality of layers configured to reduce the vibration transferred between the bearing block and the cylinder head, wherein the plurality of layers includes at least a central damping layer having a first radial thickness arranged between two outer damping layers having a second radial thickness disposed on radially opposing sides of the central damping layer, and wherein the first thickness is greater than the second thickness.
Dependencies are inferred from the claim text.