CYLINDER HEAD FOR ENGINE

摘要

A cylinder head (1) incorporates the manifold (6) of the exhaust system of an engine (10). The cylinder head (1) is provided with outer coolant passages (23A, 23B), through the inside of which engine coolant flows, and the outer coolant passages (23A, 23B) are arranged along the manifold located on the outer surface (14C) side of the cylinder head (1). The cylinder head (1) is also provided with inner coolant passages (24A, 24B) which are shaped so as to join the outer coolant passages (23A, 23B) after branching therefrom. The inner coolant passages (24A, 24B) are arranged on the inside of the cylinder head (1) so as to extend along the outer coolant passages (23A, 23B).