Nested channel ducts for nozzle construction and the like
a technology of nozzle construction and ducting, which is applied in the direction of turbine/propulsion fuel flow conduit, combustion process, turbine/propulsion fuel valve, etc., can solve the problems of cumbersome multi-channel system, heavy, difficult to manufacture and maintain, etc., and achieves the effect of simple and more economical manufacturing
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[0017]FIG. 1 illustrates a gas turbine engine 10 generally comprising, in serial flow communication, a fan 12 through which ambient air is propelled, a multistage compressor section 14 for pressurizing the air, a combustion section 16 in which the compressed air is mixed with fuel atomized into a combustion chamber 17 by a fuel injection system comprising a fuel injection nozzle assembly 20, the mixture being subsequently ignited for generating hot combustion gases before passing through a turbine section 18 for extracting energy from the combustion gases.
[0018] Referring to FIG. 2, the fuel injection nozzle assembly 20 comprises an annular fuel manifold ring 22 generally disposed within the combustion chamber 17 of the engine, and mounted via several integral attachment lugs 28 for fixing the annular ring 22 to an appropriate support structure. The annular fuel manifold ring 22 comprises a plurality of fuel injector spray tip assemblies 24 thereon, which atomize the fuel for combu...
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