Patent ID: 8662028

Claim:
A cylinder head of an internal combustion engine having several cylinders, comprising an inlet side and an outlet side with at least two outlet channels per cylinder, wherein a first coolant jacket is arranged in the cylinder head, said first coolant jacket comprising a first coolant collection channel which extends along the cylinder head on the outlet side over said outlet channels, wherein the first coolant collection channel is connected to cooling chambers at least partly surrounding said outlet channels, said cooling chambers being in a fluidic connection with at least one transfer opening in a cylinder head gasket plane, wherein one first transfer opening per cylinder is arranged in a first transverse engine plane containing a cylinder axis, and wherein a first transverse cooling passage extends from each first transfer opening in the first transverse engine plane between two of said outlet channels, said first transverse cooling passage splitting into two cooling sub-passages in the area of the cylinder axis, wherein each cooling sub-passage respectively surrounds one of said outlet channels in the area of a respective outlet opening over an angle of approximately 180° and each cooling sub-passage is connected to the first coolant collection channel by means of a second transverse cooling passage, wherein each second transverse cooling passage is arranged in the area of a second transverse engine plane extending through at least one cylinder head bolt bore, wherein the first coolant jacket is arranged completely on the outlet side.