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US 8,261,554 B2Granted
Fuel nozzle tip assembly
AssigneeGeneral Electric Company
InventorsDonald Mark Bailey, Scott R. Simmons
Life of this patent
Estimating the term…
Abstract
A system, in one embodiment, includes a fuel nozzle tip retainer that includes a structural member having a geometry that blocks a tip insert from moving axially downstream of a fuel nozzle.
Claims21
A turbine system, comprising:
- a turbine;
- a combustor;
- a compressor;
- and
- a fuel nozzle, comprising:
- a tubular tip comprising a first tubular portion and a second tubular portion coupled together, wherein the first tubular portion comprises a first axial blocking feature, and the second tubular portion comprises a second axial blocking feature;
- and
- a diffusion tip insert disposed inside the tubular tip, wherein the diffusion tip insert comprises a plurality of diffusion ports, the plurality of diffusion ports is axially offset from a downstream end of the tubular tip, the first axial blocking feature is configured to block axial movement of the diffusion tip insert in an upstream direction relative to the fuel nozzle, and the second axial blocking feature is configured to block axial movement of the diffusion tip insert in a downstream direction relative to the fuel nozzle.
5 more elements
A turbine system, comprising:
- a fuel nozzle tip assembly, comprising:
- a tubular tip comprising a first tubular portion and a second tubular portion coupled together, wherein the first tubular portion comprises a first axial blocking feature, and the second tubular portion comprises a second axial blocking feature;
- and
- a tip insert disposed inside the tubular tip, wherein the tip insert comprises a plurality of diffusion ports, the plurality of diffusion ports is axially offset from a downstream end of the tubular tip, the first axial blocking feature is configured to block axial movement of the tip insert in a first axial direction, and the second axial blocking feature is configured to block axial movement of the tip insert in a second axial direction opposite to the first axial direction.
1 more element
A turbine system, comprising:
- a fuel nozzle tip assembly, comprising:
- a tubular tip comprising a first tubular portion and a second tubular portion directly fixed to one another, wherein the first tubular portion is made of a first material, the second tubular portion is made of a second material, the second material is configured to withstand higher temperatures than the first material, and at least one of the first and second tubular portions comprises an axial blocking feature;
- and
- a diffusion tip insert disposed inside the tubular tip, wherein the diffusion tip insert comprises a plurality of diffusion ports, the plurality of diffusion ports is axially offset from a downstream end of the tubular tip, and the axial blocking feature is configured to block axial movement of the tip insert.
1 more element
Dependencies are inferred from the claim text.