Rich catalytic injection
AssigneeUnited Technologies Corporation
InventorAlbert Veninger
Life of this patent
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Abstract
A gas turbine engine includes a compressor, a rich catalytic injector, a combustor, and a turbine. The rich catalytic injector includes a rich catalytic device, a mixing zone, and an injection assembly. The injection assembly provides an interface between the mixing zone and the combustor. The injection assembly can inject diffusion fuel into the combustor, provides flame aerodynamic stabilization in the combustor, and may include an ignition device.
Claims20
A gas turbine engine comprising:
- a compressor;
- a turbine operatively coupled to the compressor by a shaft assembly;
- a combustor downstream of the compressor;
- and
- a rich catalytic injector disposed between the compressor and the combustor, wherein the rich catalytic injector comprises a rich catalytic device, a mixing zone downstream of the rich catalytic device, and an injection assembly disposed between the mixing zone and the combustor, the injection assembly operatively coupling the mixing zone with the combustor.
A method of combustion in a combustion device comprising:
- catalytically burning a fuel rich mixture in a rich catalytic device, the burning producing heated fuel;
- mixing the heated fuel with air in a mixing zone to provide a heated fuel-air mixture;
- and
- injecting the heated fuel-air mixture into a combustor with an injection assembly, wherein the injection assembly controls the flow and burn characteristics of the heated fuel-air mixture in the combustor.
A catalytic injection system for a combustor comprising:
- a rich catalytic device;
- a mixing zone downstream of the rich catalytic burner, the mixing zone having an outlet;
- and
- an injection assembly disposed between the outlet of the mixing zone and an inlet of the combustor, the injection assembly including an end cap blocking a central portion of the inlet of the combustor.
A catalytic injection system for a combustor comprising:
- a rich catalytic burner;
- a first mixing zone downstream of the rich catalytic burner;
- a second mixing zone downstream of the first mixing zone, the second mixing zone configured to interface with the combustor;
- a center body surrounded by the rich catalytic burner, the first mixing zone and the second mixing zone, the center body configured to interface with the combustor.
Dependencies are inferred from the claim text.