A shrouded fluid-conducting apparatus is provided that includes at least one outer conduit and at least one inner conduit disposed within the outer conduit. Preferably, the shrouded fluid-conducting apparatus further includes at least one shrouded end fitting disposed at an end of the shrouded fluid
A shrouded fluid-conducting apparatus is provided that includes at least one outer conduit and at least one inner conduit disposed within the outer conduit. Preferably, the shrouded fluid-conducting apparatus further includes at least one shrouded end fitting disposed at an end of the shrouded fluid-conducting apparatus and at least one support member engaged with the inner and outer conduits. The shrouded end fitting allows the shrouded fluid-conducting apparatus to be engaged with an additional shrouded fluid-conducting apparatus. The support member allows for the transfer of loads from the inner and/or outer conduits to one or more components external to the shrouded fluid-conducting apparatus. Accordingly, the shrouded-fluid conducting apparatus may be used to transport fuel through an aircraft “ignition zone” in an FAA-compliant manner.
대표청구항▼
1. A shrouded fluid-conducting apparatus, comprising:at least one outer conduit; at least one inner conduit disposed within the at least one outer conduit; at least one support member engaged with the at least one inner and outer conduits; and a shrouded end fitting disposed at each end of the shrou
1. A shrouded fluid-conducting apparatus, comprising:at least one outer conduit; at least one inner conduit disposed within the at least one outer conduit; at least one support member engaged with the at least one inner and outer conduits; and a shrouded end fitting disposed at each end of the shrouded fluid-conducting apparatus, each said shrouded end fitting being engageable with a corresponding shrouded end fitting at an end of another shrouded fluid-conducting apparatus to form a removable connection, enabling the shrouded fluid-conducting apparatus to be individually installed between and removed from between the two other shrouded fluid-conducting apparatus. 2. The shrouded fluid-conducting apparatus of claim 1, wherein the at least one outer conduit is sized to allow a fluid flow therethrough and between the at least one outer conduit and the at least one inner conduit.3. The shrouded fluid-conducting apparatus of claim 1, wherein the at least one support member defines a leak detection passageway.4. The shrouded fluid-conducting apparatus of claim 3, wherein the at least one support member comprises:an inner member engaged with the at least one inner conduit; an outer member engaged with the at least one outer conduit, the inner and outer members being separated by a spaced distance to define the leak detection passageway therebetween; and at least one fin disposed between the inner and outer members. 5. The shrouded fluid-conducting apparatus of claim 4, wherein:the inner member of the at least one support member is disposed circumferentially around a portion of the at least one inner conduit; and the at least one outer conduit comprises a first portion and a second portion, each of which is welded into weld sockets defined by the outer member of the at least one support member. 6. The shrouded fluid-conducting apparatus of claim 5, wherein the inner member of the at least one support member defines weld sockets in which corresponding portions of the at least one inner conduit are welded.7. The shrouded fluid-conducting apparatus of claim 4, wherein at least one fin of the at least one support member defines a passageway therethrough in which is installed at least a portion of a fluid control system.8. The shrouded fluid-conducting apparatus of claim 1, wherein the at least one support member is configured to allow for curvature of at least a portion of the shrouded fluid-conducting apparatus.9. The shrouded fluid-conducting apparatus of claim 8, wherein:the at least one support member comprises: an inner member that defines at least one weld socket; and an outer member that defines at least one weld socket; the at least one inner conduit comprises at least one curved portion engaged with the at least one weld socket of the inner member; and the at least one outer conduit comprises at least one curved portion engaged with the at least one weld socket of the outer member. 10. The shrouded fluid-conducting apparatus of claim 1, wherein the shrouded end fitting defines at least a portion of a leak detection passageway.11. The shrouded fluid-conducting apparatus of claim 10, wherein the shrouded end fitting comprises:an inner portion defining a weld socket in which is welded an end portion of the at least one inner conduit; an outer portion defining a weld socket in which is welded an end portion of the at least one outer conduit, the inner and outer portions being separated by a spaced distance to define the portion of the leak detection passageway; and at least one fin disposed between the inner and outer portions. 12. The shrouded fluid-conducting apparatus of claim 11, wherein at least one fin of the shrouded end fitting defines a passageway therethrough in which is installed at least a portion of a fluid control system.13. The shrouded fluid-conducting apparatus of claim 1, wherein the shrouded end fitting comprises a flange defining at least one hole sized to receive a mechanical fastener therein.14. The shrouded fluid-conducting apparatus of claim 1, wherein:the shrouded end fitting is engageable with the corresponding shrouded end fitting disposed at the end of the another shrouded fluid-conducting apparatus to form at least a portion of a joint disposed between the shrouded fluid-conducting apparatus and the another shrouded fluid-conducting apparatus; the joint allows for fluid communication between the at least one inner conduit of the shrouded fluid-conducting apparatus and an inner conduit of the another fluid-conducting apparatus; and the joint defines a leak detection passageway allowing for fluid communication between the at least one outer conduit of the shrouded fluid-conducting apparatus and an outer conduit of the another shrouded fluid-conducting apparatus. 15. The shrouded fluid-conducting apparatus of claim 14, wherein the shrouded end fitting is shaped to interfit with the corresponding shrouded end fitting in a keyed arrangement.16. The shrouded fluid-conducting apparatus of claim 1 wherein:the shrouded fluid-conducting apparatus is coupled to supporting structure within an aircraft; and the at least one inner conduit is in communication with a source of fuel to communicate the fuel through the at least one inner conduit. 17. The shrouded fluid-conducting apparatus of claim 1, wherein:the shrouded fluid-conducting apparatus is coupled to supporting structure within an ignition zone of an aircraft; and the at least one inner conduit is in communication with a source of fuel to communicate the fuel through the ignition zone. 18. A shrouded fluid-conducting apparatus, comprising:at least one outer conduit; at least one inner conduit disposed within the at least one outer conduit; at least one support member engaged with the at least one inner and outer conduits; at least one shrouded end fitting disposed at an end of the shrouded fluid-conducting apparatus; wherein the shrouded end fitting is engageable with a corresponding shrouded end fitting disposed at an end of an additional shrouded fluid-conducting apparatus to form at least a portion of a joint disposed between the shrouded fluid-conducting apparatus and the additional shrouded fluid-conducting apparatus; wherein the joint allows for fluid communication between the at least one inner conduit of the shrouded fluid-conducting apparatus and an inner conduit of the additional fluid-conducting apparatus; wherein the joint comprises: the engaged shrouded end fittings; an inner seal sleeve disposed around an inner portion of the engaged shrouded end fittings; an inner coupling assembly disposed around the inner seal sleeve; an outer seal sleeve disposed around an outer portion of the engaged shrouded end fittings; and an outer coupling assembly disposed around the outer seal sleeve, the leak detection passageway being defined between the inner coupling assembly and the outer seal sleeve. 19. A shrouded fluid-conducting apparatus, comprising:at least one outer conduit; at least one inner conduit disposed within the at least one outer conduit; at least one shrouded end fitting disposed at an end of the shrouded fluid-conducting apparatus, the at least one shrouded end fitting defining at least a portion of a leak detection passageway, the at least one shrouded end fitting being engageable with a corresponding shrouded end fitting disposed at an end of another shrouded fluid-conducting apparatus to form at least a portion of a joint that allows a fluid to be communicated between the at least one inner conduit of the shrouded fluid-conducting apparatus and an inner conduit of the another shrouded fluid-conducting apparatus; wherein the joint includes the engaged shrouded end fittings, an inner seal sleeve disposed around an inner portion of the engaged shrouded end fittings, an inner coupling assembly disposed around the inner seal sleeve, an outer seal sleeve disposed around an outer portion of the engaged shrouded end fittings, and an outer coupling assembly disposed around the outer seal sleeve, and a leak detection passageway being defined between the inner coupling assembly and the outer seal sleeve. 20. A shrouded fluid-conducting apparatus, comprising:at least one outer conduit; at least one inner conduit disposed within the at least one outer conduit; at least one support member including an inner member engaged with the at least one inner conduit, and an outer member defining weld sockets in which corresponding portions of the at least one outer conduit are welded, the inner and outer members being separated by a spaced distance to define a leak detection passageway therebetween, the at least one support member enabling transfer of loads from the at least one inner conduit to one or more components external to the shrouded fluid-conducting apparatus, wherein: the shrouded fluid-conducting apparatus is coupled to supporting structure within an aircraft; and the at least one inner conduit is in communication with a source of fuel to communicate the fuel through the at least one inner conduit. 21. The shrouded fluid-conducting apparatus of claim 20, wherein:the shrouded fluid-conducting apparatus is coupled to supporting structure within an ignition zone of the aircraft; and the at least one inner conduit is in communication with a source of fuel to communicate the fuel through the ignition zone. 22. A shrouded end fitting, comprising:an outer portion defining a weld socket in which is weldable an end portion of an outer conduit; an inner portion defining a weld socket in which is weldable an end portion of an inner conduit disposed within the outer conduit, the inner and outer portions being separated by a spaced distance to define at least a portion of a leak detection passageway; at least one fin disposed between the inner and outer portions; wherein: the shrouded end fitting is engageable with a corresponding shrouded end fitting disposed at an end of a shrouded fluid-conducting apparatus to form at least a portion of a joint that allows a fluid to be communicated between the inner conduit and an inner conduit of the shrouded fluid-conducting apparatus; and the joint includes: the engaged shrouded end fittings; an inner seal sleeve disposed around the inner portions of the engaged shrouded end fittings; an inner coupling assembly disposed around the inner seal sleeve; an outer seal sleeve disposed around the outer portions of the engaged shrouded end fittings; an outer coupling assembly disposed around the outer seal sleeve; and a leak detection passageway defined between the inner coupling assembly and the outer seal sleeve. 23. A method of making a shrouded fluid-conducting apparatus, the method comprising:coupling a support member to an inner conduit; slidably positioning first and second portions of an outer conduit over the inner conduit; welding the first and second portions of the outer conduit into corresponding weld sockets defined by the support member; and coupling a shrouded end fitting to the inner and outer conduits at each end of the shrouded fluid-conducting apparatus. 24. The method of claim 23, wherein coupling a support member to an inner conduit comprises slidably positioning the support member over the inner conduit such that the inner conduit extends outwardly from each side of the support member.25. The method of claim 23, wherein coupling a support member to an inner conduit comprises welding corresponding portions of the inner conduit into the corresponding weld sockets defined by the support member.26. The method of claim 23, wherein coupling a shrouded end fitting to the inner and outer conduits comprises welding the inner and outer conduits into corresponding weld sockets defined by the shrouded end fitting.27. The method of claim 23, further comprising:engaging one of the shrouded end fittings with a corresponding shrouded end fitting coupled to another shrouded fluid-conducting apparatus; disposing an inner seal sleeve around an inner portion of the engaged shrouded end fittings; disposing an inner coupling assembly around the inner seal sleeve, disposing an outer seal sleeve around an outer portion of the engaged shrouded end fittings; and disposing an outer coupling assembly around the outer seal sleeve; wherein a leak detection passageway is defined between the inner coupling assembly and the outer seal sleeve. 28. The method of claim 23, further comprising:coupling the shrouded fluid-conducting apparatus to supporting structure within an aircraft; placing the inner conduit in communication with a source of fuel; and delivering fuel from the source to the inner conduit to communicate the fuel through the inner conduit. 29. The method of claim 23, further comprising:coupling the shrouded fluid-conducting apparatus to supporting structure within an ignition zone of an aircraft; placing the inner conduit in communication with a source of fuel; and delivering fuel from the source to the inner conduit to communicate the fuel through the ignition zone. 30. A method of conducting fluid, the method comprising:shrouding an inner conduit; removably coupling the inner conduit between at least two other fluid-conducting apparatus to allow the inner conduit to transfer a load to an external component and to place the inner conduit in fluid communication with the other fluid-conducting apparatus; coupling the inner conduit to supporting structure within an aircraft; placing the inner conduit in communication with a source of fuel; and delivering fuel from the source to the inner conduit to communicate the fuel through the inner conduit. 31. The method of claim 30,wherein coupling the inner conduit to supporting structure comprises coupling the inner conduit to supporting structure within an ignition zone of an aircraft; and wherein delivering fuel from the source to the inner conduit comprises delivering fuel from the source to the inner conduit to communicate the fuel through the ignition zone. 32. The method of claim 30, wherein the step of shrouding an inner conduit comprises disposing the inner conduit within an outer conduit.33. The method of claim 30, further comprising the step of delivering fluid to the outer conduit.34. A method of conducting fluid, the method comprising:shrouding an inner conduit; removably coupling the inner conduit between at least two other fluid-conducting apparatus to allow the inner conduit to transfer a load to an external component and to place the inner conduit in fluid communication with the other fluid-conducting apparatus; delivering fluid to the inner conduit; wherein removably coupling the inner conduit comprises: engaging a shrouded end fitting coupled to the inner conduit with a corresponding shrouded end fitting coupled to one of the other shrouded fluid-conducting apparatus; disposing an inner seal sleeve around an inner portion of the engaged shrouded end fittings; disposing an inner coupling assembly around the inner seal sleeve; disposing an outer seal sleeve around an outer portion of the engaged shrouded end fittings; and disposing an outer coupling assembly around the outer seal sleeve; wherein a leak detection passageway is defined between the inner coupling assembly and the outer seal sleeve.
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