Fuel injection assemblies in combustion turbine engines
AssigneeGeneral Electric Company
InventorsWei Chen, Lucas John Stoia, Richard Martin DiCintio
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Abstract
An assembly for use in a fuel injection system within a combustor of a combustion turbine engine is described. The assembly may include: a first port formed through an outer radial wall of the combustor and a second port formed through an inner radial wall. A plenum may be formed about the first port. A tube may be formed that has a first end positioned within the first port and a second end positioned within the second port. At the first end, the tube may be sized smaller than the first port such that two passages are defined therethrough: a first passage defined about an exterior of the tube; and a second passage defined through an interior of the tube.
Claims22
An assembly for use in a fuel injection system within a combustor of a combustion turbine engine, wherein the combustor includes an inner radial wall, which defines a primary combustion chamber downstream of a primary fuel nozzle, and an outer radial wall, which surrounds the inner radial wall so to form a flow annulus therebetween, the assembly comprising:
- a first port formed through the outer radial wall;
- a second port formed through the inner radial wall;
- a plenum formed about the first port, the plenum comprising a volume disposed outboard of an outer surface of the outer radial wall;
- a tube comprising a first end positioned within the first port and a second end positioned within the second port, wherein at the first end, the tube is sized smaller than the first port such that two passages are defined therethrough:
- a first passage defined about an exterior of the tube;
- and a second passage defined through an interior of the tube;
- and
- fuel outlets disposed within the first passage.
Dependencies are inferred from the claim text.