Cylinder head with turbine
AssigneeFord Global Technologies, LLC
InventorKai Sebastian Kuhlbach
Life of this patent
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Abstract
The disclosure relates to a cylinder head having at least one cylinder. The cylinder head comprises a radial turbine including a rotor arranged in a turbine casing and rotatably mounted on a shaft, an overall exhaust line which opens into an inlet zone of the radial turbine, said zone merging into a flow duct which carries exhaust gas, and at least one coolant duct integrated into the turbine casing to form a cooling system, the at least one coolant duct extending in a spiral around the shaft in the casing, wherein the at least one coolant duct extends circumferentially around and at a distance from the flow duct over an angle α, where α≦45°.
Claims20
A cylinder head having at least one cylinder, comprising:
- a radial turbine comprising a rotor arranged in a turbine casing and rotatably mounted on a shaft;
- an overall exhaust line which opens into an inlet zone of the radial turbine, said zone merging into a flow duct which carries exhaust gas;
- and
- at least one coolant duct integrated into the turbine casing to form a cooling system, the at least one coolant duct extending in a spiral around the shaft in the casing, the at least one coolant duct extending circumferentially around and at a distance from the flow duct over an angle α, where α≦45°.
A system for cooling a turbine, comprising:
- a cylinder head including a coolant jacket;
- a turbocharger turbine including a rotor rotatably mounted on a shaft and arranged in a turbine casing;
- and
- at least one coolant duct arranged in the turbine casing and coupled to the coolant jacket, the coolant duct extending circumferentially only over an angle α around a flow duct of the turbine, where α≦45°.
A method for cooling a turbine rotatably mounted on a shaft, comprising:
- routing coolant through at least one coolant jacket arranged in an exhaust passage side of a cylinder head to a coolant duct of the turbine, the coolant duct of the turbine extending circumferentially around and at a distance from a flow duct of the turbine only over an angle α, where α≦45°.
Dependencies are inferred from the claim text.