Vehicle fuel burner
First Claim
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1. A method for an engine, comprising:
- during stopped engine operation, burning fuel in an engine intake heater downstream of a compressor to generate heated gas, and flowing the heated gas through an exhaust gas recirculation (EGR) passage and then through a heat-exchanger to bypass engine cylinders and a turbine, while flowing coolant through the heat-exchanger to a vehicle climate control system; and
during combusting engine operation, burning fuel in the engine intake heater to generate the heated gas, and flowing the heated gas through combusting engine cylinders.
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Abstract
A method is provided. The method includes, during stopped engine operation, burning fuel in an engine intake heater to generate heated gas, the heated gas bypassing engine cylinders via an exhaust gas recirculation passage. The method further includes during combusting engine operation, burning fuel in the engine intake heater to generate heated gas, and flowing the heated gas through combusting engine cylinders.
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Citations
21 Claims
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1. A method for an engine, comprising:
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during stopped engine operation, burning fuel in an engine intake heater downstream of a compressor to generate heated gas, and flowing the heated gas through an exhaust gas recirculation (EGR) passage and then through a heat-exchanger to bypass engine cylinders and a turbine, while flowing coolant through the heat-exchanger to a vehicle climate control system; and during combusting engine operation, burning fuel in the engine intake heater to generate the heated gas, and flowing the heated gas through combusting engine cylinders. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A vehicle comprising:
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a fuel burner positioned in an intake system; a heat-exchanger positioned downstream of the fuel burner; an exhaust gas recirculation (EGR) passage fluidly coupling the intake system to an exhaust system downstream of a turbine; and a control system configured to initiate generation of heated gas in the fuel burner and flow the heated gas to the heat-exchanger and through the EGR passage to the exhaust system, downstream of the turbine. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A method for an engine, comprising:
- during stopped engine operation, burning fuel in an engine intake heater to generate heated gas, transferring heat from the heated gas to a coolant system via a first heat-exchanger, and flowing the heated gas through an exhaust gas recirculation (EGR) passage to bypass engine cylinders, the heated gas flowing through an exhaust gas recirculation (EGR) cooler; and
during combusting engine operation, burning fuel in the engine intake heater to generate the heated gas, transferring heat from the heated gas to the coolant system via a second heat-exchanger, and flowing the heated gas through combusting engine cylinders, the heated gas flowing through an intake system intercooler and bypassing the EGR cooler, the engine being a boosted engine.
- during stopped engine operation, burning fuel in an engine intake heater to generate heated gas, transferring heat from the heated gas to a coolant system via a first heat-exchanger, and flowing the heated gas through an exhaust gas recirculation (EGR) passage to bypass engine cylinders, the heated gas flowing through an exhaust gas recirculation (EGR) cooler; and
Specification