The Boeing Company
Flexible double walled hose connection

Abstract:

A flexible conduit for transporting fluids in a fluid system, such a fluid system on an aircraft, and methods of assembling the flexible conduit described. The flexible conduit can include a flexible inner hose for transporting a fluid. The flexible inner hose can be surrounded by a flexible outer wall which can contain any leakage of fluid from the flexible inner hose. The flexible inner hose and the flexible outer wall can be coupled on each end to ferrules. Swage rings can be swaged to secure the flexible inner hose and the flexible outer wall to the ferrules.