Cast cylinderhead of a multi-cylinder internal combustion engine

摘要

In a cast cylinderhead of a multi-cylinder internal combustion engine wherein gas flow channels (exhaust gas and intake air flow channels) and at least one longitudinal gas flow passage with branch passages extending between the longitudinal gas flow passages and particular gas flow channels are formed in the cylinderhead, the gas flow channels, any longitudinal gas flow passage and all the branch passages are formed by a single-piece casting core structure.