Patent ID: 8146543
Filing Date: 2012-04-03
Classification: F02F

Abstract:
1. A cylinder head for an internal combustion engine having at least two cylinders, each cylinder having at least one outlet opening for discharging exhaust gases out of the cylinder, the cylinder head comprising: an assembly end side for connection to a cylinder block of the engine, an exhaust-gas line adjoining each outlet opening, the exhaust-gas lines of the at least two cylinders merging within the cylinder head to form a combined exhaust-gas line, and a coolant jacket interior to and at least partially integrated in the cylinder head, the coolant jacket having a lower coolant jacket arranged between the exhaust-gas lines and the assembly end-side of the cylinder head, and an upper coolant jacket arranged on that side of the exhaust-gas lines which is situated opposite the lower coolant jacket, and only two combined exhaust-gas line-side connections between the lower coolant jacket and the upper coolant jacket, each of said two connections located immediately adjacent the combined exhaust-gas line and located in an outer wall of the cylinder head, said two connections allowing for passage of coolant.