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US 11,649,965 B2Granted
Fuel nozzle for a gas turbine with radial swirler and axial swirler and gas turbine
AssigneeNuovo Pignone Tecnologie Srl
InventorMatteo Cerutti
Life of this patent
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Abstract
The fuel nozzle for the gas turbine includes a radial swirler and an axial swirler. The radial swirler is arranged to swirl a first flow of a first oxidant-fuel mixture and the axial swirler is arranged to swirl a second flow of a second oxidant-fuel mixture. The first flow may be fed by a central conduit and the second flow may be fed by an annular conduit surrounding the central conduit.
Claims13
A fuel nozzle for a gas turbine comprising:
- a nozzle body defining a longitudinal axis, a central conduit developing in a direction along the longitudinal axis and an annular conduit developing around the central conduit;
- a radial swirler configured to swirl a first flow of a first oxidant-fuel mixture that flows through the central conduit;
- an axial swirler arranged to swirl a second flow of a second oxidant-fuel mixture that flows through the annular conduit;
- a first shroud defining a downstream end of the central conduit and encompassing the first flow from the radial swirler;
- and
- a second shroud defining a downstream end of the annular conduit and encompassing the second flow from the axial swirler,
- wherein the central conduit and the annular conduit keep the first flow and the second flow separate until both exit at an outlet, and
- wherein the first shroud and the second shroud both terminate at a plane perpendicular to the longitudinal axis.
5 more elements
Dependencies are inferred from the claim text.