A fuel nozzle assembly for delivering fuel to a combustor of a gas turbine engine. The assembly includes a fuel nozzle including a body having a fuel inlet, an air inlet, an outlet for discharging fuel to the combustor, and a mounting flange for mounting the nozzle in the engine. A portion of the bo
A fuel nozzle assembly for delivering fuel to a combustor of a gas turbine engine. The assembly includes a fuel nozzle including a body having a fuel inlet, an air inlet, an outlet for discharging fuel to the combustor, and a mounting flange for mounting the nozzle in the engine. A portion of the body corresponding to the fuel inlet and/or the air inlet includes a recess for receiving a supply fitting having an annular sealing surface and a rotatable nut. The recess includes an annular seat sized and shaped for sealingly engaging the sealing surface of the supply tube fitting and female threads positioned adjacent the seat for threadably receiving the rotatable nut of the supply.
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1. A fuel nozzle assembly for delivering fuel to a combustor of a gas turbine engine, said assembly comprising a fuel nozzle including a body having a fuel inlet for receiving fuel from a fuel supply, an air inlet for receiving air from an air supply, an outlet for discharging fuel to the combustor
1. A fuel nozzle assembly for delivering fuel to a combustor of a gas turbine engine, said assembly comprising a fuel nozzle including a body having a fuel inlet for receiving fuel from a fuel supply, an air inlet for receiving air from an air supply, an outlet for discharging fuel to the combustor of the gas turbine engine, and a mounting flange for mounting the nozzle in the engine so the fuel inlet and air inlet are positioned outside the combustor and the nozzle outlet is positioned inside the combustor, wherein a portion of the body corresponding to at least one of said fuel inlet and said air inlet includes a recess for receiving a supply fitting having an annular sealing surface and a rotatable nut, the recess including an annular seat sized and shaped for sealingly engaging the sealing surface of the supply fitting and female threads positioned adjacent the seat for threadably receiving the rotatable nut of the supply fitting to releasably fasten the supply fitting to the fuel nozzle and hold the sealing surface of the supply fitting sealing engagement with the seat of the fuel nozzle, said annular seat including a conical surface having an apex angle of about 74 degrees.2. In combination, a fuel nozzle assembly for delivering fuel to p combustor of a gas turbine engine and a supply fitting,said fitting including a sealing surface at least a portion of which is rounded, said assembly comprising a fuel nozzle including a body having a fuel inlet for receiving fuel from a fuel supply, an air inlet for receiving air from an air supply, an outlet for discharging fuel to the combustor of the gas turbine engine, and a mounting flange for mounting the nozzle in the engine so the fuel inlet and air inlet are positioned outside the combustor and the nozzle outlet is positioned inside the combustor, wherein a portion of the body corresponding to at least one of said fuel inlet and said air inlet includes a recess for receiving the supply fitting having an annular sealing surface and a rotatable nut including external threads and a wrenching surface for turning the nut about a turning axis relative to the recess, the recess including an annular seat sized and shaped for sealingly engaging the sealing surface of the supply fitting and female threads positioned adjacent the seat for threadably receiving the rotatable nut of the supply fitting to releasably fasten the supply fitting to the fuel nozzle and hold the sealing surface of the supply fitting in sealing engagement with the seat of the fuel nozzle, and wherein the external threads and wrenching surface are sufficiently axially spaced so that the wrenching surface is positionable outside a combustor frame when the external threads are positioned inside the combustor frame. 3. A combination as set forth in claim 2 wherein the sealing surface of the supply fitting includes a rounded surface.4. A fuel nozzle assembly for delivering fuel to a combustor of a gas turbine engine, said assembly comprising a fuel nozzle including a body having a fuel inlet for receiving fuel from a fuel supply, an air inlet for receiving air from an air supply, an outlet for discharging fuel to the combustor of the gas turbine engine, and a mounting flange for mounting the nozzle in the engine so the fuel inlet arid air inlet are positioned outside the combustor and the nozzle outlet is positioned inside the combustor, wherein a portion of the body corresponding to at least one of said fuel inlet and said air inlet includes a recess for receiving a supply fitting having an annular sealing surface and a rotatable nut, the recess including an annular seat sized and shaped for sealingly engaging the sealing surface of the supply fitting and female threads positioned adjacent the seat for threadably receiving the rotatable nut of the supply fitting to releasably fasten the supply fitting to the fuel nozzle and hold the sealing surface of the supply fitting in sealing engagement with the seat of the fuel nozzle, wherein the fuel inlet and the air inlet are non-concentric, and wherein a portion of the body corresponding to another of said fuel inlet and said air inlet includes a protrusion having external threads and an annular seal positioned concentric with the protrusion threads.5. A fuel nozzle assembly for delivering fuel to a combustor of a gas turbine engine, said assembly comprising a fuel nozzle including a body having a fuel inlet for receiving fuel from a fuel supply, an air inlet for receiving air from an air supply, an outlet for discharging fuel to the combustor of the gas turbine engine, and a mounting flange for mounting the nozzle in the engine so the fuel inlet and air inlet are positioned outside the combustor and the nozzle outlet is positioned inside the combustor, wherein a portion of the body corresponding to at least one of said fuel inlet and said air inlet includes a recess for receiving a supply fitting having an annular sealing surface and a rotatable nut, the recess including an annular seat sized and shaped sealingly engaging the sealing surface of the supply fitting and female threads positioned adjacent the seat for threadably receiving the rotatable nut of the supply fitting to releasably fasten the supply fitting to the fuel nozzle and hold the sealing surface of the supply fitting in sealing engagement with the seat of the fuel nozzle, and wherein the portion of the body including the recess corresponds to said air inlet.6. A gas turbine engine fuel nozzle assembly for delivering fuel to a gas turbine engine combustor comprising:a body having: a fuel inlet for receiving fuel from a fuel supply line, an air inlet for receiving air from an air supply line, an outlet for discharging fuel to the combustor of the gas turbine engine, an externally threaded protrusion adjacent one of the fuel inlet and the air inlet for engaging an internally threaded fitting to connect the corresponding supply line to the body, and an internally threaded recess adjacent another of the fuel inlet and the air inlet for engaging an externally threaded fitting to connect the corresponding supply line to the body. 7. A gas turbine engine fuel nozzle assembly for delivering fuel to a gas turbine engine combustor comprising:a fuel supply line for delivering fuel from a fuel source; an air supply line for delivering air from an air source; an externally threaded nut rotatably connected to one of said fuel supply line and said air supply line; an internally threaded nut rotatably connected to another of said fuel supply line and said air supply line; and a fuel nozzle body having: a fuel inlet for receiving fuel from the fuel supply line, an air inlet for receiving air from the air supply line, an outlet for discharging fuel to the combustor of the gas turbine engine, an externally threaded protrusion adjacent one of the fuel inlet and the air inlet for engaging the internally threaded nut to connect the corresponding supply line to the body, and an internally threaded recess adjacent another of the fuel inlet and the air inlet for engaging the externally threaded fitting to connect the corresponding supply line to the body.
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