Kernstruktur zum Formen eines Einlass- oder Auslasskanals

摘要

An intake or exhaust port molding core of a cylinder head includes a plurality of protruders on the core to form a plurality of depressed grooves in the intake or exhaust port during casting of the cylinder head. The disposition and orientation of the intake or exhaust port formed inside the cylinder head can then be easily and precisely measured via the depressed grooves.