Devices and methods for conditioning or vaporizing liquid fuel in an intermittent combustion engine
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F02M-027/06
F02M-027/00
출원번호
US-0383944
(2006-05-17)
등록번호
US-7404395
(2008-07-29)
발명자
/ 주소
Yoshimoto,Hitoshi
출원인 / 주소
Yoshimoto,Hitoshi
대리인 / 주소
Thorpe North & Western LLP
인용정보
피인용 횟수 :
36인용 특허 :
21
초록▼
A device and method for conditioning and/or volumetric heating fuel within an intermittent combustion engine in order to enhance fuel combustion and emission performance is provided. Such a device can include a fuel injector configured to eject a fuel spray having a trajectory within a combustion ch
A device and method for conditioning and/or volumetric heating fuel within an intermittent combustion engine in order to enhance fuel combustion and emission performance is provided. Such a device can include a fuel injector configured to eject a fuel spray having a trajectory within a combustion chamber, an energy source capable of emitting electromagnetic energy, and an optical fiber configured to transmit electromagnetic energy emitted from the energy source into the combustion chamber, and is also configured to cause fuel conditioning.
대표청구항▼
What is claimed is: 1. A fuel conditioning device, comprising: a fuel injector configured to eject a fuel spray along a trajectory within a combustion chamber; an energy source capable of emitting electromagnetic energy; and an optical fiber coupled to the energy source, wherein the optical fiber i
What is claimed is: 1. A fuel conditioning device, comprising: a fuel injector configured to eject a fuel spray along a trajectory within a combustion chamber; an energy source capable of emitting electromagnetic energy; and an optical fiber coupled to the energy source, wherein the optical fiber is configured to transmit electromagnetic energy emitted from the energy source into the combustion chamber, and is configured to be concentrated and cause fuel conditioning at the fuel spray along the trajectory. 2. The device of claim 1, wherein the energy source is a laser. 3. The device of claim 1, further comprising a source focusing member configured to focus electromagnetic energy prior to entering the optical fiber. 4. The device of claim 3, wherein the source focusing member is a lens. 5. The device of claim 3, wherein the source focusing member is a mirror. 6. The device of claim 3, wherein the source focusing member focuses the emitted electromagnetic energy to within the optical fiber at a diameter from about 100 microns to about 400 microns. 7. The device of claim 1, wherein more than one optical fiber is used. 8. The device of claim 1, further comprising a transmitted energy focusing member, configured to focus electromagnetic energy after transmission through the optical fiber and prior to conditioning the fuel spray. 9. The device of claim 8, wherein the transmitted energy focusing member is a lens. 10. The device of claim 8, wherein the transmitted energy focusing member is a mirror. 11. The device of claim 1, wherein the optical fiber is from about 100 microns to about 400 microns in diameter. 12. The device of claim 1, wherein the optical fiber is separated from the combustion chamber by a window that is substantially transparent to the electromagnetic energy. 13. The device of claim 12, wherein the window comprises fused silica, sapphire, or diamond. 14. The device of claim 12, wherein the window is a focusing lens. 15. The device of claim 1, wherein the optical fiber terminates within the combustion chamber. 16. The device of claim 1, wherein the fuel injector operates as a direct fuel injection system. 17. The device of claim 1, wherein the fuel injector operates as an indirect fuel injection system. 18. The device of claim 1, said device configured for use in a reciprocating internal combustion engine. 19. The device of claim 1, said device configured for use in a gasoline engine. 20. The device of claim 1, said device configured for use in a diesel engine. 21. The device of claim 1, said device configured for use in a pulse detonation engine (PDE). 22. A fuel conditioning device, comprising: a combustion chamber; a fuel injector configured to eject a fuel spray along a trajectory within the combustion chamber; an energy source capable of emitting electromagnetic energy; an energy directing member configured to direct the electromagnetic energy to a region along the trajectory to cause fuel conditioning at the fuel spray; and a rigid housing coupled to the combustion chamber or the fuel injector which houses the electromagnetic energy emitted from the energy source prior to entering the combustion chamber. 23. The device of claim 22, wherein the energy source is a laser. 24. The device of claim 22, wherein the energy directing member is an optical fiber. 25. The device of claim 22, wherein the energy directing member is an energy focusing member configured to focus the electromagnetic energy. 26. The device of claim 25, wherein the energy focusing member is a lens. 27. The device of claim 25, wherein the energy focusing member is a mirror. 28. The device of claim 22, wherein the energy source is also at least partially within the rigid housing. 29. The device of claim 22, wherein the rigid housing is metal. 30. The device of claim 22, wherein the rigid housing is removable from the combustion chamber or the fuel injector. 31. The device of claim 22, wherein the energy directing member is separated from the combustion chamber by a window that is substantially transparent to the electromagnetic energy. 32. The device of claim 31, wherein the window comprises fused silica, sapphire, or diamond. 33. The device of claim 31, wherein the window is part of the rigid housing. 34. The device of claim 31, wherein the window is a focusing lens. 35. The device of claim 22, wherein the optical fiber terminates within the combustion chamber. 36. The device of claim 22, wherein the fuel injector operates as a direct fuel injection system. 37. The device of claim 22, wherein the fuel injector operates as an indirect fuel injection system. 38. The device of claim 22, said device configured for use in a reciprocating internal combustion engine. 39. The device of claim 22, said device configured for use in a gasoline engine. 40. The device of claim 22, said device configured for use in a diesel engine. 41. The device of claim 22, said device configured for use in a pulse detonation engine (PDE). 42. A method of conditioning fuel, comprising: a) injecting a fuel spray along a trajectory within a combustion chamber; and b) directing electromagnetic energy from an optical fiber into the combustion chamber, said electromagnetic energy configured to be concentrated and cause fuel conditioning at the fuel spray along the trajectory. 43. The method of claim 42, wherein the trajectory originates from a fuel injector. 44. The method of claim 42, wherein the fuel spray is injected intermittently. 45. The method of claim 44, wherein the step of directing electromagnetic energy is configured to be substantially synchronized with the step of injecting the fuel spray. 46. The method of claim 42, further comprising focusing the electromagnetic energy from the optical fiber, prior to the fuel conditioning. 47. The method of claim 42, wherein a laser produces the electromagnetic energy. 48. The method of claim 42, wherein the electromagnetic energy conditions the fuel spray along the trajectory without initiating ignition.
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