Patent ID: 8256114

Claim:
A method for the production of a cooling jacket of a cylinder head of a multi-cylinder internal combustion engine, said method comprising: providing a casting mold, the casting mold including the cooling jacket casting core having at least one impression of a cooling jacket and a slot extending substantially in a direction of a crankshaft longitudinal axis, the slot separating at least in a section of the cooling jacket casting core; pouring a liquid metal into the casting mold, the liquid metal forming the cylinder head of the multi-cylinder internal combustion engine with a flame deck, an upper deck and the fluid cooling jacket, the cooling jacket being partitioned at least in one section by a web, the web running vertically to and along with the flame deck and the upper deck; and waiting for the liquid metal to cool and solidify, the solidified metal forming the cooling jacket of the cylinder head of the multi-cylinder internal combustion engine.