Patent ID: 7784442

Claim:
A cylinder head for a turbocharged engine comprising: a casting defining external and internal walls including front and rear end walls connected longitudinally by opposite side walls and a bottom wall engaging the end and side walls; an exhaust manifold within the casting and including first internal walls defining exhaust gas passages extending from individual exhaust ports in the lower wall to an exhaust gas outlet in one of the side walls, the outlet defined in a mounting face formed on said one side wall, and adapted for direct mounting of a turbocharger thereon; a water jacket for cooling the bottom wall and the exhaust manifold, the water jacket including a lower cooling jacket and an upper cooling jacket largely separated by a generally horizontal dividing wall forming generally longitudinal vertically separated coolant flow passages extending from one end of the cylinder head to an other end thereof, the lower cooling jacket being in heat exchange relation with the inside of said bottom (combustion chamber) wall and the lower side of the exhaust manifold in the cylinder head, and the upper cooling jacket being in heat exchange relation with the upper side of the exhaust manifold and an oil return chamber in the cylinder head above the water jacket; said lower and upper cooling jacket passages including generally vertical portions separated by said dividing wall but connecting with the longitudinal passages and lying inwardly adjacent the exhaust outlet mounting face to provide increased cooling of the mounting face.