IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
UP-0334587
(2006-01-18)
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등록번호 |
US-7582137
(2009-09-16)
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발명자
/ 주소 |
- Chen, Alexander G.
- Spadaccini, Louis J.
- Chiappetta, Louis
- Cordatos, Haralambos
|
출원인 / 주소 |
- United Technologies Corporation
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대리인 / 주소 |
Carlson, Gaskey & Olds, PC
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인용정보 |
피인용 횟수 :
6 인용 특허 :
37 |
초록
▼
A device for use in a fluid system includes a flow perturbation element within a fluid channel. The flow perturbation element has a gas permeable surface for removing dissolved gas from passing fluid. A gas permeable membrane is coated on the gas permeable surface and allows the dissolved gas trans
A device for use in a fluid system includes a flow perturbation element within a fluid channel. The flow perturbation element has a gas permeable surface for removing dissolved gas from passing fluid. A gas permeable membrane is coated on the gas permeable surface and allows the dissolved gas transport out of passing fluid into a gas-removal channel. The gas permeable membrane may be coated on the fuel perturbation elements using any of a variety of methods.
대표청구항
▼
We claim: 1. A device for use in a fluid system, comprising: a fluid channel extending between side walls for receiving fluid having dissolved gas; and a flow perturbation element extending from one of the side walls into the fluid channel, the flow perturbation element having a gas permeable surfa
We claim: 1. A device for use in a fluid system, comprising: a fluid channel extending between side walls for receiving fluid having dissolved gas; and a flow perturbation element extending from one of the side walls into the fluid channel, the flow perturbation element having a gas permeable surface through which at least a portion of the dissolved gas will pass. 2. The device as recited in claim 1, wherein the flow perturbation element defines a gas permeation passage that extends through the flow perturbation element. 3. The device as recited in claim 1, wherein the gas permeable surface includes a gas permeable membrane. 4. The device as recited in claim 3, including a backing layer between the gas permeable membrane and the gas permeable surface. 5. The device as recited in claim 1, wherein the flow perturbation element comprises a porous material. 6. The device as recited in claim 5, wherein the porous material is a material selected from a group consisting of a porous polymer, a metal foam, porous ceramic, ceramic foam, and a plastic foam. 7. The device as recited in claim 6, wherein the porous material includes pores that define a gas permeation passage through the porous material. 8. The device as recited in claim 1, wherein the flow perturbation element includes a planar surface transverse to a fluid flow direction through the fluid channel and a curved surface adjacent the planar surface. 9. The device as recited in claim 1, wherein the fluid channel comprises a fluid passage between elongated channel walls, and the flow perturbation element extends transversely from one of the elongated channel walls into the fluid passage. 10. A device for use in a fluid system, comprising: a fuel passage defining an axis and extending between side walls; a first flow perturbation element extending from one of the side walls into the fuel passage and comprising a first gas-removal channel in communication with a first gas permeable membrane having a first distal section and a first proximal section that is relatively nearer to the axis than the first distal section; and a second flow perturbation element extending from one of the side walls into the fuel passage and comprising a second gas-removal channel in communication with a second gas permeable membrane having a second distal section and a second proximal section that is relatively nearer to the axis than the second distal section. 11. The device as recited in claim 10, wherein the first proximal section and the first distal section are respectively aligned in an axial direction relative to the axis with the second proximal section and the second distal section. 12. The device as recited in claim 10, wherein the first proximal section and the first distal section are respectively aligned in an axial direction relative to the axis with the second distal section and the second proximal section. 13. The device as recited in claim 10, wherein the first proximal section and the first distal section are respectively offset in an axial direction relative to the axis from the second distal section and the second proximal section. 14. A device for use in a fluid system, comprising: a fuel passage defining an axis; a first flow perturbation element comprising a first gas-removal channel in communication with a first gas permeable membrane having a first distal section and a first proximal section that is relatively nearer to the axis than the first distal section; and a second flow perturbation element comprising a second gas-removal channel in communication with a second gas permeable membrane having a second distal section and a second proximal section that is relatively nearer to the axis than the second distal section, and the first gas permeable membrane and the second gas permeable membrane faces in a direction toward the fuel passage, and each of the first flow perturbation element and the second flow perturbation element comprises a third gas permeable membrane that faces in an opposite direction toward an adjacent fuel passage. 15. The device as recited in claim 14, wherein each of the first flow perturbation element and the second flow perturbation element comprises a mesh structural member that defines a gas-removal channel between the third gas permeable membrane and the respective first gas permeable membrane and second gas permeable membrane. 16. The device as recited in claim 15, wherein the gas-removal channel is operable to provide a concentration differential between the fuel passage and the gas-removal channel. 17. The device as recited in claim 10, wherein the first distal section, the first proximal section, the second distal section, and the second proximal section extend in a direction transverse to the axis. 18. A device for use in a fluid system, comprising: a fuel channel for receiving fuel having dissolved gas therein and extending between side walls; a porous flow perturbation element extending from one of the side walls into the fuel passage and defining a non-planar flow passage through the fuel channel; a gas permeable membrane in communication with the fuel channel; and a gas-removal channel adjacent the porous flow perturbation element for receiving the dissolved gas from the fuel through the gas permeable membrane and porous flow perturbation element. 19. The device as recited in claim 18, further comprising a porous backing layer adjacent the gas permeable membrane and the porous flow perturbation element. 20. The device as recited in claim 19, wherein the porous backing layer is between the gas permeable membrane and the porous flow perturbation element. 21. The device as recited in claim 19, wherein the porous backing layer comprises a porous material. 22. The device as recited in claim 21, wherein the porous material comprises polyetheramide. 23. The device as recited in claim 18, wherein the gas-removal channel comprises a gas partial pressure differential relative to the fuel channel to draw dissolved gas from the fuel through the gas permeable membrane and porous flow perturbation element into the gas-removal channel. 24. The device as recited in claim 18, wherein the gas-removal channel comprises a gas concentration differential relative to the fuel channel to draw dissolved gas from the fuel through the gas permeable membrane and porous flow perturbation element into the gas-removal channel. 25. The device as recited in claim 18, further comprising a gas passage that extends through the gas permeable membrane and flow perturbation element to fluidly connect the fuel channel and the gas-removal channel. 26. The device as recited in claim 25, wherein the gas passage comprises a pore network defined by the gas permeable membrane and porous flow perturbation element. 27. The device as recited in claim 18, wherein the porous flow perturbation element is one of a plurality of porous flow perturbation elements that define a non-planar flow passage through the fuel channel. 28. The device as recited in claim 27, wherein the plurality of porous flow perturbation elements are interconnected. 29. A fuel system having a fuel deoxygenator that includes the device as recited in claim 18 for removing the dissolved gas from oxygen-rich fuel to produce oxygen-depleted fuel, and a heat exchanger downstream from the fuel deoxygenator for receiving the oxygen-depleted fuel. 30. The system as recited in claim 29, further including a fuel reservoir in communication with the fuel deoxygenator. 31. The system as recited in claim 30, further including a pump in communication between the fuel reservoir and the fuel deoxygenator. 32. The system as recited in claim 31, further including a return conduit that connects the heat exchanger and the fuel reservoir, and a recirculation conduit that bypasses the fuel reservoir to fluidly connect the heat exchanger and the fuel deoxygenator. 33. The system as recited in claim 32, further including a vacuum source in communication with the gas-removal channel. 34. The system as recited in claim 32, further including a sweep gas source in communication with the gas-removal channel. 35. A device for use in a fluid system, comprising: a fuel channel comprising a flow passage between elongated channel walls for receiving fuel having dissolved gas therein; a porous flow perturbation element that extends from one of the elongated channel walls into the flow passage; a gas permeable membrane in communication with the fuel channel; and a gas-removal channel adjacent the porous flow perturbation element for receiving the dissolved gas from the fuel through the gas permeable membrane and porous flow perturbation element. 36. The device as recited in claim 35, wherein the porous flow perturbation element includes a forward surface transverse to the one of the elongated channel walls and an aft surface transverse to the one of the elongated channel walls. 37. A device for use in a fluid system, comprising: a fuel channel comprising a flow passage between elongated channel walls for receiving fuel having dissolved gas therein; a porous flow perturbation element that extends from one of the elongated channel walls into the flow passage, the porous flow perturbation element including a forward surface transverse to the one of the elongated channel walls and an aft surface transverse to the one of the elongated channel walls, and the forward surface comprises a curved portion and a planar portion adjacent the curved portion; a gas permeable membrane in communication with the fuel channel; and a gas-removal channel adjacent the porous flow perturbation element for receiving the dissolved gas from the fuel through the gas permeable membrane and porous flow perturbation element. 38. The device as recited in claim 37, wherein the aft surface is planar. 39. The device as recited in claim 37, wherein the curved portion is a radiused surface which blends a base segment of a first thickness with a tip segment of a second thickness, the second thickness less than the first thickness. 40. A device for use in a fluid system, comprising: a fuel channel comprising a flow passage between elongated channel walls for receiving fuel having dissolved gas therein; a porous flow perturbation element that extends from one of the elongated channel walls into the flow passage, the porous flow perturbation element including a forward surface transverse to the one of the elongated channel walls and an aft surface transverse to the one of the elongated channel walls, and the forward surface includes a stepped surface; a gas permeable membrane in communication with the fuel channel; and a gas-removal channel adjacent the porous flow perturbation element for receiving the dissolved gas from the fuel through the gas permeable membrane and porous flow perturbation element. 41. A method of removing a gas from a liquid, comprising: (a) communicating fluid that includes dissolved gas through a fluid channel that extends between side walls; (b) generating a gas concentration differential between the fluid channel and a gas permeation passage within a flow perturbation element extending from one of the side walls into the fluid channel; and (c) drawing the gas from the fluid at least partially through the gas permeation passage within the flow perturbation element in the fluid channel. 42. The method as recited in claim 41, including step (c) communicating the gas from the gas permeation passage into a gas-removal channel. 43. The method as recited in claim 41, wherein step (b) includes providing the gas permeation passage through a porous substrate material that defines the flow perturbation element. 44. The device as recited in claim 1, wherein the side walls include gas permeable surfaces. 45. The device as recited in claim 1, wherein the side walls are parallel. 46. The device as recited in claim 1, wherein the flow perturbation element spans partially across the fluid channel. 47. The device as recited in claim 46, wherein the flow perturbation element spans a majority of a distance across the fluid channel. 48. The device as recited in claim 1, wherein the flow perturbation element includes forward and trailing sides that meet at a free end that is within the fluid channel. 49. The device as recited in claim 1, wherein the flow perturbation element extends between abase at One of the side walls and a free end within the fluid channel.
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