Abstract A flammable fluid carrying tube has one of its ends disposed within a tube coupling which is adjacent a hot surface of the gas turbine engine. A flammable fluid deflector is disposed between the coupling and the hot surface for deflecting, away from the hot surface, any fluid which may leak from the coupling. The deflector includes an axially extending portion disposed against the tube outer surface adjacent the coupling, the axially extending portion including a circumferentially extending tab which fits into a corresponding slot in an arcuate positioning sleeve which is bonded to that surface of the tube facing away from the hot engine surface and which positions the deflector axially and circumferentially. A standard clamp secures the deflector to the tube. The deflector may be used with virtually any standard coupling and replaces expensive concentric tube designs which utilize special couplings and dual seals for redundancy.
In a gas turbine engine the combination of: means defining a hot surface; a flammable fluid carrying tube having an axis, an end, an outer surface, said tube end being closely spaced from said hot surface; tube coupling means surrounding said tube end forming a tube joint; an arcuate sleeve segment axially adjacent said tube coupling and disposed against and bonded to that portion of said tube outer surface facing away from said hot surface, said sleeve segment having axially extending circumferentially spaced apart edges, at least one of said edges including a cutout therein; an arcuate deflector disposed between said coupling means and said hot surface, partially surrounding said coupling means for deflecting away from said hot surface, flammable fluid leaking from said tube joint, one end of said deflector including an arcuate, axial extension disposed against said tube outer surface and having circumferentially spaced apart axially extending edges substantially abutting the axially extending edges of said sleeve segment to orient said deflector circumferentially, one of said extension edges including a tab extending circumferentially outwardly therefrom into said sleeve segment cutout for positioning said deflector axially; and clamp means surrounding said extension for securing said deflector to said tube.
Claim 2
Dependent Claim
200 words
In a gas turbine engine the combination of: means defining a hot surface; a flammable fluid carrying tube having an axis, an end, an outer surface, said tube end being closely spaced from said hot surface; tube coupling means surrounding said tube end forming a tube joint; an arcuate sleeve segment axially adjacent said tube coupling and disposed against and bonded to that portion of said tube outer surface facing away from said hot surface, said sleeve segment having axially extending circumferentially spaced apart edges, at least one of said edges including a cutout therein; an arcuate deflector disposed between said coupling means and said hot surface, partially surrounding said coupling means for deflecting away from said hot surface, flammable fluid leaking from said tube joint, one end of said deflector including an arcuate, axial extension disposed against said tube outer surface and having circumferentially spaced apart axially extending edges substantially abutting the axially extending edges of said sleeve segment to orient said deflector circumferentially, one of said extension edges including a tab extending circumferentially outwardly therefrom into said sleeve segment cutout for positioning said deflector axially; and clamp means surrounding said extension for securing said deflector to said tube.