Separately cooled turbocharger for maintaining a no-flow strategy of an engine block coolant jacket
AssigneeFord Global Technologies, LLC
InventorsKai Sebastian Kuhlbach, Bernd Steiner, Jan Mehring
Life of this patent
Estimating the term…
Abstract
An internal combustion engine is provided herein. The internal combustion engine may include a turbocharger including a turbine positioned in an exhaust passage, the turbine having a turbine housing. The internal combustion engine may further include a cooling system having an engine block coolant jacket fluidly coupled to a pump, a cylinder head coolant jacket fluidly coupled to the pump, and a turbine coolant passage traversing the turbine housing and fluidly coupled to the pump and bypassing the engine block coolant jacket.
Claims20
An internal combustion engine comprising:
- a turbocharger including a turbine positioned in an exhaust passage, the turbine having a turbine housing;
- a cooling system including:
- an engine block coolant jacket fluidly coupled to a pump;
- a cylinder head coolant jacket fluidly coupled to the pump;
- and
- a turbine coolant passage traversing the turbine housing and fluidly coupled to the pump and bypassing the engine block coolant jacket.
A method for operating a cooling system in an internal combustion engine having a turbocharger including a turbine positioned in an exhaust passage and a cooling system including a pump fluidly coupled to an engine block coolant jacket, a cylinder head coolant jacket, and a turbine coolant passage traversing a housing of the turbine, the method comprising:
- during a first operating condition, flowing coolant from the pump into the cylinder head coolant jacket and/or the turbine coolant passage and inhibiting coolant flow from the pump to the cylinder head coolant jacket.
An internal combustion engine comprising:
- a turbocharger including a turbine positioned in an exhaust passage, the turbine having a turbine housing;
- a cooling system including:
- an engine block coolant jacket including an inlet fluidly coupled to a pump and including one or more engine block coolant passages traversing an engine block;
- a cylinder head coolant jacket including an inlet fluidly coupled to the pump and including one or more cylinder head coolant passages traversing a cylinder head;
- and
- a turbine coolant passage traversing the turbine housing and fluidly coupled in a parallel flow configuration with the engine block coolant jacket.
Dependencies are inferred from the claim text.