Method and apparatus for air and fuel injection in a turbine
AssigneeGeneral Electric Company
InventorsMahesh Bathina, Chetan Babu Velkur, Senthamil Selvan, Anand Prafulchandra Desai, Abinash Baruah
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Abstract
A method includes receiving fuel and air into a cup of a turbine fuel nozzle. The method also includes mixing the fuel and air at least partially within the cup. In addition, the method includes directing a fuel air mixture toward a turbine combustor. The method also includes shielding an inner wall of the cup with a blanket of a protective fluid flow to reduce the possibility of flame holding along the inner wall. The protective fluid flow excludes a combustible mixture of fuel and air.
Claims20
A system, comprising:
- a turbine engine, comprising:
- a combustor;
- and
- a fuel nozzle disposed in the combustor, wherein the fuel nozzle comprises a fuel passage and an air passage directing fuel and air to mix in a cup, and the fuel nozzle comprises a baffle in the cup to direct a fluid flow along an inner wall of the cup, wherein the fluid flow is a mixed or non-mixed non-combustible mixture.
A system, comprising:
- a turbine fuel nozzle, comprising:
- a fuel passage;
- an air passage;
- a cup coupled to the fuel and air passages, wherein the cup is configured to direct a fuel air mixture toward a turbine combustor;
- and
- a baffle disposed inside the cup, wherein the baffle defines an annular passage to direct a protective fluid flow along an inner wall of the cup to reduce the possibility of flame holding along the inner wall, and the protective fluid flow excludes a combustible mixture of fuel and air.
A method, comprising:
- receiving fuel and air into a cup of a turbine fuel nozzle;
- mixing the fuel and air at least partially within the cup;
- directing a fuel air mixture toward a turbine combustor;
- and
- shielding an inner wall of the cup with a blanket of a protective fluid flow to reduce the possibility of flame holding along the inner wall, wherein the protective fluid flow excludes a combustible mixture of fuel and air.
Dependencies are inferred from the claim text.