Internal combustion engine with liquid cooling
AssigneeFord Global Technologies, LLC
InventorsKai Sebastian Kuhlbach, Guenter Bartsch, Marcus Klaar
Life of this patent
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Abstract
Example embodiments for reducing thermal load in one or more exhaust gas lines are provided. One embodiment includes an internal combustion engine with liquid cooling, comprising at least one exhaust gas line, at least one coolant jacket, and a common boundary wall separating the at least one exhaust gas line and the at least one coolant jacket, wherein the common boundary wall includes a surface structure provided on sides of the coolant jacket in at least one locally limited region. In this way, the surface structure on the sides of the coolant jacket may increase heat transfer to reduce thermal loading.
Claims19
A method for cooling a cylinder head, comprising:
- providing a coolant jacket in the cylinder head, the coolant jacket separated from at least one exhaust line by a boundary wall, wherein a turbine is coupled to an exhaust outlet;
- and
- providing a plurality of elements projecting from the boundary wall into the coolant jacket, the plurality of elements positioned along the boundary wall only in confluence regions of the coolant jacket.
A system for reducing thermal loading, comprising:
- a cylinder head including a plurality of exhaust lines, the plurality of exhaust lines merging together in one or more confluence regions;
- a turbine coupled to an the plurality of exhaust lines;
- an exhaust manifold integrated into the cylinder head and coupled to the plurality of exhaust lines;
- a coolant jacket integrated in the cylinder head and separated from the plurality of exhaust lines by one or more boundary walls;
- and
- at least one element positioned only on sides of the one or more boundary walls that face into the coolant jacket, the at least one element located only in the one or more confluence regions.
An internal combustion engine with liquid cooling, comprising:
- at least one exhaust gas line;
- at least one coolant jacket;
- a common boundary wall separating the at least one exhaust gas line and the at least one coolant jacket, wherein the common boundary wall includes a surface structure provided on sides of the coolant jacket in at least one locally limited region;
- a turbine including a turbine casing for utilizing enthalpy of hot exhaust gases, the turbine including at least one flow duct for carrying the exhaust gas through the casing, wherein the at least one coolant jacket comprises at least one coolant jacket integrated in the turbine casing and the at least one exhaust gas line comprises the at least one flow duct, wherein the surface structure includes at least one knob-shaped element, the at least one knob-shaped element projecting from the common boundary wall into the at least one coolant jacket;
- and
- a compressor coupled to the turbine via a shaft.
Dependencies are inferred from the claim text.