IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0690755
(2007-03-23)
|
등록번호 |
US-7426907
(2008-09-23)
|
발명자
/ 주소 |
- Dearth,Mark
- Goralski,Christian T.
- Leone,Thomas G.
|
출원인 / 주소 |
- Ford Global Technologies, LLC
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
22 인용 특허 :
85 |
초록
▼
A method of operating a vehicle system including an internal combustion engine is disclosed, the method comprises separating a second fuel from a first fuel, the second fuel having a greater concentration of at least one component than the first fuel; combusting at least the first fuel at least duri
A method of operating a vehicle system including an internal combustion engine is disclosed, the method comprises separating a second fuel from a first fuel, the second fuel having a greater concentration of at least one component than the first fuel; combusting at least the first fuel at least during a first engine load; and combusting at least the second fuel at least during a second engine load higher than the first engine load.
대표청구항
▼
What is claimed is: 1. A method of operating a vehicle system including an internal combustion engine, comprising: separating a second fuel from a first fuel, the second fuel having a greater concentration of at least one component than the first fuel, wherein said separating is performed at a sepa
What is claimed is: 1. A method of operating a vehicle system including an internal combustion engine, comprising: separating a second fuel from a first fuel, the second fuel having a greater concentration of at least one component than the first fuel, wherein said separating is performed at a separator; combusting at least said first fuel at least during a first engine load; combusting at least said second fuel at least during a second engine load higher than the first engine load; and adjusting a condition of the separator responsive to an operating condition, wherein the operating condition includes at least one of a temperature of the separator and a rate of consumption of the second fuel by the engine. 2. The method of claim 1 further comprising, increasing an amount of the second fuel that is combusted relative to an amount of the first fuel that is combusted with increasing load. 3. The method of claim 1 further comprising, injecting the second fuel directly into at least one cylinder of the engine via a direct injector. 4. The method of claim 3 further comprising, injecting the first fuel into an intake passage upstream of an intake valve of the engine via a port injector. 5. The method of claim 3 further comprising, injecting the first fuel directly into said at least one cylinder of the engine via the direct injector. 6. The method of claim 1, wherein the component includes an alcohol. 7. The method of claim 6, wherein the alcohol includes ethanol. 8. The method of claim 1, wherein the component includes water. 9. The method of claim 1 further comprising, applying a pressure at the separator to at least partially separate the second fuel from the first fuel. 10. The method of claim 1, wherein said separating includes contacting the first fuel and the second fuel to a selective barrier of the separator, wherein the selective barrier transports said second fuel. 11. The method of claim 1 further comprising, receiving a fuel mixture including the first fuel and the second fuel at a fuel tank, wherein the fuel tank is fluidically coupled to the separator; and wherein at least a portion of the first fuel or a portion of the second fuel is returned to the fuel tank after the second fuel is separated from the first fuel. 12. The method of claim 1, wherein the second fuel is an oxygenated fuel component-enriched fuel fraction and the first fuel is a hydrocarbon-enriched fuel fraction. 13. A vehicle system, comprising: an internal combustion engine including at least one cylinder; a separator for separating a second fuel and a first fuel from a fuel mixture, the second fuel having a greater concentration of alcohol than the first fuel; a direct injector for injecting the second fuel directly into the cylinder; a boosting device coupled to an air passage communicating with the engine; a fuel pump for applying a pressure at the separator to at least partially separate the second fuel from the first fuel; and a control system for: combusting at least said first fuel in the cylinder at least during a first engine load; combusting at least said second fuel in the cylinder at least during a second engine load higher than the first engine load; and wherein the control system is further configured to vary the pressure applied at the separator by the fuel pump responsive to a rate of consumption of the second fuel by the engine. 14. The vehicle system of claim 13, wherein the alcohol includes ethanol. 15. The vehicle system of claim 13, further comprising a port injector for injecting the first fuel into the air passage upstream of the engine. 16. The vehicle system of claim 13, wherein the control system is further configured to vary an amount of the second fuel that is combusted by the engine relative to an amount of the first fuel that is combusted by the engine responsive to a level of boost provided to the engine by the boosting device. 17. A method of operating a vehicle system including an internal combustion engine, comprising: separating a second fuel from a first fuel, the second fuel having a greater concentration of at least one component than the first fuel and the second fuel having a lower heat of vaporization than the first fuel, wherein the second fuel is an oxygenated fuel component-enriched fuel fraction and the first fuel is a hydrocarbon-enriched fuel fraction; combusting at least said first fuel at least during a first engine load; combusting at least said second fuel at least during a second engine load higher than the first engine load, and, adjusting operation of the vehicle in response to performance of the separating. 18. The method of claim 17 further comprising boosting engine intake air, where a fuel injection of the first and second fuel is adjusted in response to the separation performance, where the separation performance includes a separation rate. 19. The method of claim 17, further comprising increasing an amount of the second fuel that is combusted relative to an amount of the first fuel that is combusted with increasing load. 20. The method of claim 17, further comprising injecting the second fuel directly into at least one cylinder of the engine via a direct injector. 21. The method of claim 20, further comprising injecting the first fuel into an intake passage upstream of an intake valve of the engine via a port injector. 22. The method of claim 20, further comprising injecting the first fuel directly into said at least one cylinder of the engine via the direct injector. 23. The method of claim 17, wherein the component includes an alcohol. 24. The method of claim 23, wherein the alcohol includes ethanol. 25. The method of claim 17, wherein the component includes water. 26. A method of operating a vehicle system including an internal combustion engine, comprising: separating a second fuel from a first fuel, the second fuel having a greater concentration of at least one component than the first fuel, wherein said separating is performed at a separator; combusting at least said first fuel at least during a first engine load; combusting at least said second fuel at least during a second engine load higher than the first engine load; and receiving a fuel mixture including the first fuel and the second fuel at a fuel tank, wherein the fuel tank is fluidically coupled to the separator; and wherein at least a portion of the first fuel or a portion of the second fuel is returned to the fuel tank after the second fuel is separated from the first fuel. 27. The method of claim 26, further comprising increasing an amount of the second fuel that is combusted relative to an amount of the first fuel that is combusted with increasing load. 28. The method of claim 27, further comprising injecting the second fuel directly into at least one cylinder of the engine via a direct injector and injecting the first fuel into an intake passage upstream of an intake valve of the engine via a port injector. 29. The method of claim 28, further comprising injecting the first fuel directly into said at least one cylinder of the engine via the direct injector, wherein the component includes an alcohol.
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