Connection of double-walled pipes

Details Connection of double-walled pipes Connection of double-walled pipes

F - Mech Eng,Light,Heat,Weapons

16

L

F16L 39/00 (2006.01) F16L 25/00 (2006.01)

Patent

CA 2366144

A double-walled pipe connection for an aircraft fuel line includes a first outer pipe surrounding a first inner pipe, a second outer pipe surrounding a second inner pipe, a pipe coupling joining the inner pipes together, a securing fixture on the first inner pipe, a sleeve-shaped outer pipe bushing bolted to the securing fixture by bolts oriented parallel to a radial direction, and an outer pipe sleeve that is axially slidable over the second outer pipe and onto the outer pipe bushing. The first outer pipe is plugged into the outer pipe bushing, which is plugged into the outer pipe sleeve, which seals onto the second outer pipe. The inner pipe coupling is covered or exposed by axially moving the outer pipe sleeve, while the outer pipe bushing remains bolted to the first inner pipe, and mechanically secured and electrically grounded to a metal structure.

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