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US 7,582,137 B2Granted
Fuel deoxygenator with non-planar fuel channel and oxygen permeable membrane
AssigneeUnited Technologies Corporation
InventorsAlexander G. Chen, Louis J. Spadaccini, Louis Chiappetta, Haralambos Cordatos
Life of this patent
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Abstract
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.
Claims49
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.
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.
1 more element
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.
1 more element
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.
2 more elements
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.
2 more elements
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.
2 more elements
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.
2 more elements
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.
1 more element
Dependencies are inferred from the claim text.