Abstract: A turbine engine duct assembly and joint assembly having an outer shroud at least partially defining an interior of the joint assembly, an inner shroud at least partially received within the outer shroud and forming an interface therewith and defining a remainder of the interior of the joint assembly and having a flexible portion for dynamic movement of the duct assembly during operation of the engine.

Abstract: A feeder duct assembly for a gas turbine engine, which negates the need for a ball or axial joint in the duct for required for flexibility under thermal loading. The feeder duct assembly of the present innovation comprises an end fitting designed to meet flexibility requirements without compromising dynamic performance of the system with added weight from ball or axial joints in the ducts.

Abstract: A method for assembling an expansion joint includes providing a first seal retainer, positioning an annular first seal at least partially within the first seal retainer such that the first seal extends between the first seal retainer first and second ends and substantially fills the first seal retainer cavity, providing a second seal retainer, positioning an annular second seal at least partially within the second seal retainer such that the second seal extends between the second seal retainer first and second ends and substantially fills the second seal retainer cavity, coupling a bellows to the first and second seal retainers, and slidably coupling a unitary annular shroud the first and second seal retainers such that the shroud substantially circumscribes the first and second seal retainers, and such that the bellows is operable in conjunction with the annular shroud and the first and second seal retainers.