Dome combustor with air blast
AssigneeRtx Corporation
InventorsLawrence Binek, Frederick Rosenberger
Life of this patent
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Abstract
A combustor assembly for a gas turbine engine includes an annular combustor disposed about an axis and a fuel system. The combustor includes an inner wall, an outer wall, and a dome connecting the inner wall and outer wall to define an annular combustion chamber. The fuel system includes a fuel manifold disposed forward of the dome, a plurality of air blast injectors connected to the dome and circumferentially arranged about the axis, and a plurality of fuel injectors fluidly connected to the fuel manifold. Each of the plurality of air blast injectors includes an inlet disposed adjacent to the fuel manifold and an outlet disposed in the combustion chamber. Each of the plurality of fuel injectors is shrouded in an air blast injector of the plurality of air blast injectors.
Claims18
A combustor assembly for a gas turbine engine, the combustor assembly comprising:
- an annular combustor disposed about an axis, the annular combustor comprising:
- an inner wall;
- an outer wall;
- a dome connecting the inner wall and the outer wall to define an annular combustion chamber;
- a first flow guide disposed on the dome, the first flow guide comprising:
- a first inlet wall extending axially forward from the dome;
- and
- a first curved guide wall connected to a forward end of the first inlet wall and extending from the first inlet wall toward the outer wall of the annular combustor;
- and
- a second flow guide disposed on the dome and radially separated from the first flow guide, the second flow guide comprising:
- a second inlet wall extending axially forward from the dome;
- and
- a second curved guide wall connected to a forward end of the second inlet wall and extending from the second inlet wall toward the inner wall of the annular combustor;
- wherein, together, the first inlet wall, the second inlet wall, and the dome define an annular channel having an annular opening disposed opposite the dome to receive an airflow from a diffuser outlet;
- a fuel system comprising:
- a fuel manifold disposed in the annular channel between the first inlet wall and the second inlet wall forward of the dome;
- a plurality of air blast injectors connected to the dome and circumferentially arranged about the axis, each of the plurality of air blast injectors comprising an inlet disposed adjacent to the fuel manifold in the annular channel to receive the air flow from the diffuser outlet and an outlet disposed in the combustion chamber;
- and
- a plurality of fuel injectors fluidly connected to the fuel manifold, each of the plurality of fuel injectors shrouded in a respective air blast injector of the plurality of air blast injectors.
Dependencies are inferred from the claim text.