Exhaust driven engine cooling system
AssigneeDeere & Company
InventorCarl Thomas Vuk
Life of this patent
Estimating the term…
Abstract
An energy recovery system for an internal combustion engine includes a turbocharger unit having a turbocharger turbine receiving exhaust from the engine and a second turbine driven by the exhaust gasses. The second turbine drives an electrical generator. The generator supplies electrical power to an electrical control unit, which supplies power to an electric fan motor which drives an engine cooling fan driven by. The control unit also supplies electrical power to an electric coolant pump motor which drives an engine coolant pump. The second turbine is preferably a variable geometry turbine whose geometry is controlled so that its power absorption matches the electrical load of the generator.
Claims16
An energy recovery system for an internal combustion engine, comprising:
- a first stage turbine driven by exhaust gasses from the engine;
- a second stage turbine driven by exhaust gasses from the first stage turbine;
- an electrical generator driven by the second stage turbine;
- an engine cooling device driven by an electric cooling device motor;
- and
- a control unit for receiving electrical power from the generator and supplying electrical power to the cooling device motor.
An energy recovery system for an internal combustion engine, comprising:
- a turbocharger unit having an intake air compressor driven by a first stage turbine receiving exhaust from the engine;
- a second stage turbine driven by the exhaust gasses from the first stage turbine;
- an electrical generator driven by the second stage turbine;
- an engine coolant pump driven by an electric pump motor;
- and
- a control unit for receiving electrical power from the generator and supplying electrical power to the pump motor.
Dependencies are inferred from the claim text.