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US 12,655,980 B2Granted
Fuel nozzle and swirler
AssigneeGeneral Electric Company
InventorsPradeep Naik, Ajoy Patra, Michael T. Bucaro, Perumallu Vukanti, Steven C. Vise, Michael A. Benjamin, Manampathy G. Giridharan, Saket Singh, Clayton S. Cooper
Life of this patent
Estimating the term…
Abstract
An engine can utilize a combustor to combust fuel to drive the engine. A fuel nozzle assembly can supply fuel to the combustor for combustion or ignition of the fuel. The fuel nozzle assembly can include a swirler and a fuel nozzle to supply a mixture of fuel and air for combustion. The fuel nozzle assembly can be configured to increase lateral provision of fuels to reduce flame scrubbing on combustor liners for the combustor.
Claims22
A turbine engine comprising:
- a compressor section, combustor section, and turbine section in serial flow arrangement about a rotational axis, and having a fuel nozzle assembly, the fuel nozzle assembly comprising:
- a fuel nozzle terminating at a nozzle tip, defining a fuel passage, and defining a longitudinal axis, the fuel passage supplying fuel unmixed with air to the nozzle tip;
- a nozzle cap positioned within the fuel nozzle and spaced from the nozzle tip, the nozzle cap having an elliptical shape defining a major axis and a minor axis, a diameter of the nozzle cap along the major axis being greater than a diameter of the nozzle cap along the minor axis;
- a set of fuel openings provided in the nozzle cap with a greater amount of the set of fuel openings distributed closer to the major axis than the minor axis;
- and
- a swirler circumscribing the fuel nozzle assembly.
3 more elements
A fuel nozzle assembly comprising:
- a fuel nozzle terminating at a nozzle tip, defining a fuel passage, and defining a longitudinal axis, the fuel passage supplying fuel unmixed with air to the nozzle tip;
- a nozzle cap positioned within the fuel nozzle and spaced from the nozzle tip, the nozzle cap having an elliptical shape, an oval shape, or a stadium shape, the nozzle cap defining a major axis and a minor axis, a diameter of the nozzle cap along the major axis being greater than a diameter of the nozzle cap along the minor axis;
- a set of fuel openings provided in the nozzle cap collectively defining a total area, wherein the set of fuel openings are arranged in the nozzle cap such that a greater amount of the total area is distributed closer to the major axis than the minor axis;
- and
- a swirler circumscribing the fuel nozzle assembly.
2 more elements
A fuel nozzle assembly comprising:
- a fuel nozzle terminating at a nozzle tip, defining a fuel passage, and defining a longitudinal axis;
- a nozzle cap positioned within the fuel nozzle and spaced from the nozzle tip, the nozzle cap having an elliptical shape, an oval shape, or a stadium shape, the nozzle cap defining a major axis and a minor axis;
- a set of fuel openings provided in the nozzle cap collectively defining a total area, wherein the set of fuel openings are arranged in the nozzle cap such that a greater amount of the total area is distributed closer to the major axis than the minor axis;
- and
- a swirler circumscribing the fuel nozzle assembly, wherein a swirler passage is defined between the swirler and the fuel nozzle, and wherein the swirler passage includes a constant cross-sectional distance between the swirler and the fuel nozzle;
- wherein the set of openings is arranged into a central opening, a radially inner set of openings, and a radially outer set of openings.
3 more elements
A turbine engine comprising:
- a compressor section, combustor section, and turbine section in serial flow arrangement about a rotational axis, and having a fuel nozzle assembly, the fuel nozzle assembly comprising:
- a fuel nozzle terminating at a nozzle tip, defining a fuel passage, and defining a longitudinal axis;
- a nozzle cap positioned within the fuel nozzle and spaced from the nozzle tip, the nozzle cap having an elliptical shape defining a major axis and a minor axis, a diameter of the nozzle cap along the major axis being greater than a diameter of the nozzle cap along the minor axis;
- a set of fuel openings provided in the nozzle cap with a greater amount of the set of fuel openings distributed closer to the major axis than the minor axis;
- and
- a swirler circumscribing the fuel nozzle assembly;
- wherein the set of openings is arranged into a central opening, a radially inner set of openings, and a radially outer set of openings.
4 more elements
Dependencies are inferred from the claim text.