Internal combustion engine with liquid-cooled turbine
AssigneeFord Global Technologies, LLC
InventorsJan Mehring, Ludwig Stump, Kai Sebastian Kuhlbach, Bernd Steiner, Carsten Weber, Franz J. Brinkmann, Frank Kraemer, Jens Groeger
Life of this patent
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Abstract
Embodiments for cooling a turbine of an engine are provided. In one example embodiment, an internal combustion engine comprises a turbocharger including a turbine having a coolant jacket integrated in a housing of the turbine, and an oil circuit coupled to the coolant jacket of the turbine. By cooling the turbine with the oil circuit, the turbine may be constructed from less-heat resistant materials.
Claims20
A method for cooling a turbine of an internal combustion engine, comprising:
- routing engine oil via an oil circuit to the turbine;
- increasing a temperature of the engine oil prior to reaching the turbine;
- and
- routine engine oil from the turbine to a coolant jacket on an inlet side of a cylinder head, the inlet side of the cylinder head being exclusively oil-cooled.
A method for an oil circuit of an engine, comprising:
- operating an oil pump to route oil from an oil pan through a first coolant jacket of a turbine coupled to an exhaust passage of the engine, the oil from the first coolant jacket then routed through a second coolant jacket on an inlet side of a cylinder head to one or more oil consumers of the engine before passing to the oil pan, the oil heated by the first coolant jacket prior to reaching the second coolant jacket.
An internal combustion engine, comprising:
- an engine including a cylinder head having an inlet-side coolant jacket;
- a turbocharger including a turbine having a second coolant jacket integrated in a housing of the turbine;
- and
- an oil circuit coupled to the inlet-side coolant jacket and the second coolant jacket of the turbine, oil in the oil circuit routed from the second coolant jacket to the inlet-side coolant jacket before returning to an oil pan.
Dependencies are inferred from the claim text.