Back to results
US 2012/0234284 A1Published application
Crankcase and Method of Manufacturing Same
AssigneeBayerische Motoren Werke Aktiengesellschaft
InventorLars TAENZER
Life of this patent
Estimating the term…
Abstract
A crankcase is provided for an internal combustion engine with at least one coated cylinder bore, which has a chamfer on a separating surface facing a cylinder head. A countersink is arranged on the chamfer. The geometry allows an additional grinding process on a separating surface facing a cylinder head to be omitted.
Claims15
A crankcase for an internal-combustion engine, comprising:
- at least one coated cylinder bore of the crankcase,
- wherein a countersink and a chamfer are arranged at a separating surface region between the crankcase and the cylinder head.
A method of manufacturing a crankcase for an internal-combustion engine, the method comprising the acts of:
- providing the crankcase with at least one coated cylinder bore;
- and
- producing a chamfer and a countersink at a separating surface region with respect to a cylinder head.
Dependencies are inferred from the claim text.