IPC분류정보
국가/구분 |
United States(US) Patent
등록
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국제특허분류(IPC7판) |
|
출원번호 |
US-0219153
(2002-08-15)
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발명자
/ 주소 |
- Brown, Christopher Stewart
- Kirstein, Frederick Jacobus
- Martin, Paul Francis
- Wong, Harold Troy
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출원인 / 주소 |
|
대리인 / 주소 |
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인용정보 |
피인용 횟수 :
14 인용 특허 :
3 |
초록
▼
A plasma-based fuel reformer in which a fuel/air mixture is subjected to an electrical plasma arc that reforms the fuel/air mixture into a hydrogen-rich gas. The reformer includes a first electrode defining a reaction chamber and a second electrode axially aligned with the longitudinal axis of the f
A plasma-based fuel reformer in which a fuel/air mixture is subjected to an electrical plasma arc that reforms the fuel/air mixture into a hydrogen-rich gas. The reformer includes a first electrode defining a reaction chamber and a second electrode axially aligned with the longitudinal axis of the first electrode. A plasma arc forms between the first and the second electrodes in the reaction chamber when an electrical voltage is applied. An insulator is positioned between the first and the second electrode to prevent the formation of a plasma arc between the first and the second electrodes except in the reaction chamber. Means for providing a fuel/air mixture to the reaction chamber and means for diverting the air flow into the reaction chamber so as to create a vortex-like flow of air in the reaction chamber are also included.
대표청구항
▼
1. A plasma-based fuel reformer comprising: a first electrode, wherein the first electrode has an inner and outer wall and a longitudinal axis, the inner wall defining a reaction chamber; a second electrode, the second electrode being axially aligned with the longitudinal axis of the first electrode
1. A plasma-based fuel reformer comprising: a first electrode, wherein the first electrode has an inner and outer wall and a longitudinal axis, the inner wall defining a reaction chamber; a second electrode, the second electrode being axially aligned with the longitudinal axis of the first electrode and positioned in the reaction chamber such that when an electrical voltage is applied to the first and second electrodes a plasma arc forms between the first and the second electrode in the reaction chamber an insulator, wherein the insulator is positioned between the first and the second electrode so as to prevent the formation of a plasma arc between the first and the second electrodes except in the reaction chamber; means for providing a fuel/air mixture to the reaction chamber wherein the means for providing a fuel/air mixture to the reaction chamber includes a fuel line axially aligned with the second electrode; means for diverting the air flow into the reaction chamber. 2. The plasma-based fuel reformer of claim 1, wherein the fuel line has a first end and a second end, the first end being in fluid communication with a fuel source and the second end being in fluid communication with a fuel injector, the fuel injector being positioned to inject fuel into the reaction chamber. 3. The plasma-based fuel reformer of claim 1, wherein the means for diverting the air flow into the reaction chamber includes an air flow diverter, wherein the air flow diverter is in fluid communication with a source of air and positioned such that air provided to the air flow diverter by the air source is diverted into the reaction chamber in a vortex manner. 4. The plasma-based fuel reformer of claim 3, wherein the air flow diverter is helical and is axially aligned with the longitudinal axis of the first electrode. 5. The plasma-based fuel reformer of claim 1, further comprising an electrical power source, the electrical power source being connected to the first electrode and the second electrode and providing sufficient voltage to cause a plasma arc to form between the first electrode and the second electrode in the reaction chamber. 6. The plasma-based fuel reformer of claim 5, wherein the plasma are formed is sufficient to carry out a fuel reforming reaction between the air and fuel thereby forming a hydrogen-rich gas. 7. The plasma-based fuel reformer of claim 1, further comprising an exhaust manifold, wherein the exhaust manifold is in fluid communication with the reaction chamber and is positioned so as to direct the flow of hydrogen-rich gas to an exhaust outlet. 8. The plasma-based fuel reformer of claim 1, wherein the fuel/air mixture provided to the plasma-based fuel reformer is reacted in the reaction chamber so as to form a hydrogen-rich gas. 9. A plasma-based fuel reformer comprising: a first electrode composed of an electrically conductive substance, wherein the first electrode is a cylinder having a central axis and an inner wall and an outer wall, the inner wall being smaller in diameter than the outer wall and defining an axial reaction chamber and wherein the first electrode has a first end and a second end; a second electrode including: a second electrode body surrounding a tubular fuel line, the fuel line having a first end and second end in which the first end is in fluid communication with a fuel source; and an insulator wherein the insulator is defined by a first wall having a diameter slightly less than the diameter of the inner wall of the first electrode and a second wall having a diameter slightly greater than the diameter of the second electrode body and wherein the insulator is positioned between the first electrode and the second electrode to prevent the formation of an electrical discharge outside of the reaction chamber. 10. The plasma-based fuel reformer of claim 9, wherein the second end comprises an exhaust manifold, the exhaust manifold being in fluid communication with the reaction chamber. 11. The plasma-based f uel reformer of claim 9, wherein between the first end and a second end, an air inlet manifold is in fluid communication with the reaction chamber. 12. The plasma-based fuel reformer of claim 9, wherein the first electrode further includes a heat sink, wherein the heat sink is in thermal connection with the first electrode. 13. The plasma-based fuel reformer of claim 9, wherein the fuel line is axially aligned with the axis of the first electrode. 14. The plasma-based fuel reformer of claim 9, further comprising a fuel injector tip, the fuel injector tip being in fluid communication with the second end of the fuel line and positioned so as to inject fuel into the reaction chamber. 15. The plasma-based fuel reformer of claim 14, further comprising an air flow baffle surrounding the fuel line and positioned between the fuel injector tip and the second electrode body. 16. The plasma-based fuel reformer of claim 15, wherein the air flow baffle is a helix that is axially aligned with the axis of the first electrode. 17. The plasma-based fuel reformer of claim 9, further comprising a planar annular disk plasma arc platform, wherein the planar annular disk is in electrical communication with the second electrode and is positioned within the reactor chamber such that a plasma arc is formed between the planar annular disk plasma arc platform and the inner wall of the first electrode. 18. The plasma-based fuel reformer of claim 9, further comprising a first pair of pressure sealing elements positioned between the first electrode and the insulator so as to form a pressure tight seal between the two, and a second pair of pressure sealing elements positioned between the second electrode body and the insulator so as to form a pressure tight seal between the two. 19. The plasma-based fuel reformer of claim 18, wherein the first and second pair of pressure sealing elements are O-rings. 20. The plasma-based fuel reformer of claim 9, further comprising an endcap, wherein the endcap is mechanically connected onto the first end of the first electrode and prevents the second electrode from moving relative to the first electrode. 21. The plasma-based fuel reformer of claim 20, wherein the end cap is composed of an electrical insulator. 22. A plasma-based fuel reformer comprising:a first electrode, wherein the first electrode has an inner and outer wall and a longitudinal axis, the inner wall defining a reaction chamber;a second electrode, the second electrode being axially aligned with the longitudinal axis of the first electrode and positioned in the reaction chamber such that when an electrical voltage is applied to the first and second electrodes a plasma arc forms between the first and the second electrode in the reaction chamber;an insulator, wherein the insulator is positioned between the first and the second electrode so as to prevent the formation of a plasma arc between the first and the second electrodes except in the reaction chamber;means for providing a fuel/air mixture to the reaction chamber; andmeans for diverting the air flow into the reaction chamber having an air flow diverter that is helical and axially aligned with the longitudinal axis of the first electrode. 23. The plasma-based fuel reformer of claim 22, wherein the means for providing a fuel/air mixture to the reaction chamber includes a fuel line axially aligned with the second electrode, the fuel line having a first end and a second end, the first end being in fluid communication with a fuel source and the second end being in fluid communication with a fuel injector, the fuel injector being positioned to inject fuel into the reaction chamber. 24. The plasma-based fuel reformer of claim 22, wherein the means for diverting the air flow into the reaction chamber is in fluid communication with a source of air and positioned such that air provided to the air flow diverter by the air source is diverted into the reaction chamber in a vortex manner. 25. The plasma-based fuel refo rmer of claim 22, further comprising an electrical power source, the electrical power source being connected to first electrode and the second electrode to provide sufficient voltage to cause a plasma arc to form between the first electrode and the second electrode in the reaction chamber. 26. The plasma-based fuel reformer of claim 22, further comprising an exhaust manifold, wherein the exhaust manifold is in fluid communication with the reaction chamber and positioned so as to direct the flow of hydrogen-rich gas to an exhaust outlet.
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