Patent ID: 6921034

Claim:
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.