Abstract: An integral sheet metal flange system for fluid ducts including a tubular base with an outwardly projecting annular clamping surface, and an inwardly projecting annular sealing face, wherein the inwardly projecting annular sealing face has a surface transverse to the longitudinal axis of the tube. The sheet metal flanges are made integral with the tubing and are comprised of aerospace alloys.

Abstract: A coupling used to transfer fluid between two conduits includes a seal arrangement that permits an inner sleeve to move axially and angularly without fluid leaking from the coupling. The coupling also includes a pair of coupling members coupled to the inner sleeve, around each end of the inner sleeve. The inner sleeve includes tapered ends sized to receive a seal including a spherical lip. Each coupling member includes a tapered end that compresses each seal during assembly of the coupling. The seal spherical lips maintain sealable contact between the inner sleeve and the coupling first and second members.

Abstract: A fuel system for a gas turbine engine having a fuel conduit carried within an outer containment member for receiving and containing leakage from the fluid conduit. The fuel conduit includes an end that carries an elongated ferrule that has a first, enlarged head end to receive a connecting nut and a second end for receiving an end of the fuel conduit and for spacing the end of the fuel conduit from the head end of the ferrule. The ferrule has a body portion intermediate the first and second ends that has a tapered outer surface so that the body portion has thicker side wall adjacent the head end than that adjacent the second end.

Abstract: A fuel system for a gas turbine engine having a fuel conduit carried within an outer containment member for receiving and containing leakage from the fluid conduit. The fuel conduit includes an end that carries an elongated ferrule that has a first, enlarged head end to receive a connecting nut and a second end for receiving an end of the fuel conduit and for spacing the end of the fuel conduit from the head end of the ferrule. The ferrule has a body portion intermediate the first and second ends that has a tapered outer surface so that the body portion has thicker side wall adjacent the head end than that adjacent the second end.