Patent ID: 8122721

Claim:
A fuel nozzle assembly communicatively coupled to a fuel source, said fuel nozzle assembly comprising: a combustor end cover sub-assembly, said cover sub-assembly comprising a combustor end cover plate body; at least one fuel nozzle insert sub-assembly comprising an insert body and a plurality of orifice plugs inserted into said insert body, each of said plurality of orifice plugs comprising at least one orifice defined therein, said at least one fuel nozzle insert sub-assembly removably coupled to said combustor end cover plate body using a plurality of fasteners; a fuel nozzle sub-assembly comprising an inner tube wall and an outer tube wall that coupled to a shroud having a plurality of air passages therethrough, wherein said combustor end cover plate body, said insert body, and said inner tube wall define a fuel supply passage that is communicatively coupled to the fuel source and said outer tube wall define a premix fuel supply passage; and a plurality of seals between said insert body, said end cover plate body, and said tube wall, said plurality of seals comprising at least one substantially annular bellows inserted between said insert body and said inner tube wall within said fuel passage.