Fuel delivery system
AssigneeGeneral Electric Company
InventorsRobert Joseph Rohrssen, David William Cihlar, Patrick Benedict Melton, Lucas John Stoia
Life of this patent
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Abstract
A fuel delivery system for a gas turbine combustor is provided. The fuel delivery system includes a fuel tube and an attachment assembly. The fuel tube extends from a downstream injector (e.g., a late lean injector) towards a mounting ring of the combustor and is moveably attached to the mounting ring using the attachment assembly. Accordingly, the exemplary fuel delivery system may provide fuel to a downstream injector while accommodating a thermal expansion or contraction of the fuel tube along an axial direction of the combustor.
Claims20
A combustor for a gas turbine, the combustor defining an axial direction and comprising:
- a mounting ring for mounting the combustor to a casing of the gas turbine;
- an injector positioned aft of the mounting ring along the axial direction for injecting a fuel into a hot gas path of the combustor;
- a fuel tube extending from the injector towards the mounting ring;
- and
- an attachment assembly moveably attaching the fuel tube to the mounting ring to accommodate a thermal expansion or contraction of the fuel tube along the axial direction.
A gas turbine comprising:
- a compressor portion;
- a combustor assembly in communication with the compressor portion;
- and
- a turbine portion in communication with the combustor assembly, the combustor assembly comprising a combustor, the combustor defining an axial direction and comprising
- a mounting ring for mounting the combustor to a casing of the gas turbine;
- an injector positioned aft of the mounting ring in the axial direction for injecting a fuel into a hot gas path of the combustor;
- a fuel tube extending from the injector towards the mounting ring;
- and
- an attachment assembly movably attaching the fuel tube to the mounting ring to accommodate a thermal expansion or contraction of the fuel tube along the axial direction.
Dependencies are inferred from the claim text.