The disclosure provides in one embodiment for a vent dam for use in a vent stringer in a fuel vent system. The vent dam is configured to mount to and within the vent stringer The vent dam has a contoured guiding surface for guiding fuel flow into and out of an interior of the vent stringer, wherein
The disclosure provides in one embodiment for a vent dam for use in a vent stringer in a fuel vent system. The vent dam is configured to mount to and within the vent stringer The vent dam has a contoured guiding surface for guiding fuel flow into and out of an interior of the vent stringer, wherein the vent dam, the vent stringer, and a tube attached to the vent stringer are in fluid communication with one or more fuel tanks. The vent dam further has one or more side flanges extending from the contoured guiding surface for providing attachment of the vent dam to one or more interior portions of the vent stringer, wherein the contoured guiding surface and the one or more side flanges are formed as one piece.
대표청구항▼
1. A vent dam for use in a vent stringer in a fuel vent system, the vent dam configured to mount to and within the vent stringer, the vent dam comprising: a contoured guiding surface for guiding fuel flow into and out of an interior of the vent stringer, wherein the vent dam, the vent stringer, and
1. A vent dam for use in a vent stringer in a fuel vent system, the vent dam configured to mount to and within the vent stringer, the vent dam comprising: a contoured guiding surface for guiding fuel flow into and out of an interior of the vent stringer, wherein the vent dam, the vent stringer, and a tube attached to the vent stringer are in fluid communication with one or more fuel tanks; and,one or more side flanges extending from the contoured guiding surface for providing attachment of the vent dam to one or more interior portions of the vent stringer, wherein the contoured guiding surface and the one or more side flanges are formed as one piece. 2. The vent dam of claim 1, wherein the contoured guiding surface is curved. 3. The vent dam of claim 1, wherein the contoured guiding surface is sloped at an angle in a range of from about 30 degrees to about 60 degrees. 4. The vent dam of claim 1, wherein the contoured guiding surface is sloped at an angle of about 45 degrees. 5. The vent dam of claim 1, wherein the one or more side flanges are mechanically attached to the vent stringer via one or more fastener elements. 6. The vent dam of claim 1, wherein the one or more side flanges are bonded to the vent stringer via a bonding agent. 7. The vent dam of claim 1, further comprising an end flange having one or more flange holes in which one or more fastener elements are inserted to fasten and secure the end flange of the vent dam to the vent stringer. 8. The vent dam of claim 1, wherein the vent dam is made of a material selected from the group comprising a composite material, a metal material, aluminum, titanium, carbon fiber reinforcement plastic (CFRP), a carbon fiber impregnated fabric, nylon, carbon fiber laminate, and polyaryletheretherketone (PEEK). 9. The vent dam of claim 1, wherein the vent dam is made of a material that is compatible with a material comprising the vent stringer. 10. An aircraft structure comprising: at least one wing;at least one vent stringer mounted to the at least one wing, the at least one vent stringer comprising a base portion, first and second web walls extending outwardly from the base portion, a cap portion, and an access opening in the cap portion, the access opening configured for insertion and installation of vent dams;at least one fuel tank; and,the vent dams mounted to and within the at least one vent stringer, the vent dams each comprising: a contoured guiding surface for guiding fuel flow into and out of an interior of the at least one vent stringer, wherein the vent dams, the at least one vent stringer, and a tube attached to the at least one vent stringer are in fluid communication with the at least one fuel tank; and,one or more side flanges extending from the contoured guiding surface for providing attachment of the vent dams to one or more interior portions of the at least one vent stringer, wherein at least one of the vent dams is formed as one piece. 11. The aircraft structure of claim 10, wherein the contoured guiding surface is curved. 12. The aircraft structure of claim 10, wherein the contoured guiding surface is sloped at an angle in a range of from about 30 degrees to about 60 degrees. 13. The aircraft structure of claim 10, wherein the vent dams each further comprise an end flange having one or more flange holes in which one or more fastener elements is inserted to fasten and secure the end flange of the vent dam to the vent stringer. 14. The aircraft structure of claim 10, wherein the one or more side flanges are mechanically attached to the vent stringer via one or more fastener elements. 15. The aircraft structure of claim 10, wherein the one or more side flanges are bonded to the vent stringer via a bonding agent. 16. A method for providing improved fluid flow in a vent stringer of a fuel vent system, the method comprising: attaching one or more side flanges of a vent dam to one or more interior portions of the vent stringer in a fuel tank, the vent dam being adjacent to an opening in the vent stringer, wherein the vent dam includes a contoured guiding surface and the one or more side flanges extending from the contoured guiding surface, and wherein the contoured guiding surface and the one or more side flanges are formed as one piece. 17. The method of claim 16, further comprising: introducing a fluid flow through the opening in the vent stringer;using the contoured guiding surface to guide the fluid flow into and out of the vent stringer, wherein the vent dam, the vent stringer, and a tube attached to the vent stringer are in fluid communication with the fuel tank; and,using the contoured guiding surface to prevent turbulence in the fluid flow which results in a reduced pressure drop across the vent dam to improve fluid flow in the vent stringer of the fuel vent system. 18. The method of claim 16, wherein the attaching the one or more side flanges of the vent dam comprises attaching the vent dam with the contoured guiding surface being curved and having a bend radius. 19. The method of claim 16, wherein the attaching the one or more side flanges of the vent dam comprises inserting one or more fastener elements through one or more flange holes defined through an end flange of the vent dam to fasten and secure the end flange of the vent dam to the vent stringer in the fuel tank. 20. The method of claim 16, wherein the attaching the one or more side flanges of the vent dam comprises mechanically attaching the one or more side flanges to the vent stringer via one or more fastener elements. 21. The method of claim 16, wherein the attaching the one or more side flanges of the vent dam comprises bonding the one or more side flanges to the vent stringer via a bonding agent.
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이 특허에 인용된 특허 (3)
Johnson Warren A. (San Diego CA) Harding Geoffrey A. (Chula Vista CA), Arrangement for maintaining laminar air flow over gaps in aircraft engine nacelle surfaces.
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