Patent ID: 8992087
Filing Date: 2015-03-31
Classification: F16C

Abstract:
1. A crank drive for an internal combustion engine, comprising: a bearing element; a crankshaft journal having a concave-shaped surface, said crankshaft journal being rotatably mounted in said bearing element; a bearing shell disposed between said crankshaft journal and said bearing element; said bearing shell having a convex-shaped first surface associated with said concave-shaped surface of said crankshaft journal; said bearing shell having a second surface associated with said bearing element and constructed to provide said bearing shell with a non-constant cross section in longitudinal direction of said crankshaft journal; said bearing element having a surface facing said bearing shell being matched in shape to said second surface of said bearing shell; and said second surface of said bearing shell being concave and having a smaller curvature than said concave-shaped surface of said crankshaft journal.