CYLINDER HEAD AND PRODUCTION METHOD FOR A CYLINDER HEAD
A cylinder head for an internal combustion engine is provided for a motor vehicle. The cylinder head includes, but is not limited to a flow channel, which can be connected to a cylinder. An air duct for injecting gas into the flow channel is connected to the flow channel via a connection channel. The air duct is produced by means of casting and cylinder head provides for a good secondary air injection by means of a simple production.
1 . A cylinder head for an internal combustion engine of a motor vehicle, comprising:
a flow channel that can be connected to a cylinder; and
a casted air duct that is connected to the flow channel via a connection duct.
2 . The cylinder head according to claim 1 , wherein the casted air duct air duct encompasses a bent section for arranging a bore outside the casted air duct and substantially within a bend defined by the bent section.
3 . The cylinder head according to claim 1 , further comprising a casted cooling duct coupled between the casted air duct and the cylinder for cooling the cylinder.
4 . The cylinder head according to claim 3 , wherein the casted cooling duct is configured to flow around the cylinder and is guided at a substantially half shell-shaped first peripheral side of the cylinder and at a substantially half shell-shaped second peripheral side of the cylinder, which is connected to the half shell-shaped first peripheral side.
5 . The cylinder head according to claim 1 , wherein the flow channel encompasses a valve opening for arranging a valve and a connecting opening for connecting the flow channel to the cylinder and in that the connection duct, which is produced in particular by means of casting, discharges into flow channel between a connection opening and the valve opening.
6 . The cylinder head according to claim 1 , wherein the casted air duct can be connected to four cylinders.
7 . The cylinder head according to claim 1 , wherein the casted air duct is connected to at least one flow channel, which is embodied as an exhaust duct and in that provision is made for a further air duct, which is connected to at least one further flow duct, which is embodied as an inlet duct.
8 . An internal combustion engine comprising:
a cylinder block;
a cylinder encompassed by the cylinder block; and
a cylinder head connected to the cylinder, the cylinder head comprising a flow channel that can be connected to cylinder and a casted air duct that is connected to the flow channel via a connection duct.
9 . A method for producing a cylinder head, comprising the steps of:
providing a cast for the cylinder head;
arranging an air duct core that is at least partially bent for embodying an air duct, and held by a cast at a first front face and at a second front face;
filling the cast with a casting material;
cooling the casting material until it solidifies; and
removing the air duct core.
10 . The method according to claim 9 , wherein connecting duct cores connected to the air duct core are arranged for embodying the connection duct in the cast for supporting the air duct core.