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US 8,555,645 B2Granted
Fuel nozzle centerbody and method of assembling the same
AssigneeGeneral Electric Company
InventorsBeverly Stephenson Duncan, Michael Anthony Benjamin, George Chia-Chun Hsiao, Hukam Chand Mongia
Life of this patent
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Abstract
A fuel nozzle centerbody is provided that includes a cylindrical cross-sectional area, and a baffle co-axially aligned within the centerbody. The baffle includes a plurality of circumferentially-spaced apertures configured to channel an airflow radially outward such that the channeled airflow impinges a centerbody inner surface.
Claims14
A fuel nozzle centerbody having a cylindrical cross-sectional area, said centerbody comprising:
- an inlet;
- an outlet;
- a radially outer wall;
- a radially inner wall;
- a centerline axis extending from said inlet to said outlet;
- and
- a baffle substantially co-axially aligned within said centerbody, said baffle comprising:
- a first end portion, an intermediate portion, and a second end portion;
- a plurality of circumferentially-spaced apertures configured to channel airflow radially outward to impingement cool said centerbody;
- and
- an intermediate support extending radially inward from said intermediate portion of said baffle to contact a mounting flange to facilitate supporting said baffle within said centerbody,
- said second end portion supported by an end wall flange extending from an end wall of the centerbody,
- wherein cooling fluid is supplied to the baffle through at least one aperture in said radially inner wall axially between the second end portion and the intermediate support.
10 more elements
A gas turbine engine comprising:
- a fuel nozzle centerbody including a cylindrical cross-section, said centerbody comprising a radially inner wall, a radially outer wall, and a plurality of apertures through the centerbody outer wall, said plurality of apertures configured to channel a flow of air radially outward from said centerbody;
- and
- a baffle comprising a first end portion, an intermediate portion, a second end portion, and a plurality of circumferentially-spaced apertures configured to channel airflow radially outward to impingement cool said centerbody, said baffle co-axially aligned within said centerbody and comprising an intermediate support extending radially inward from said intermediate portion of said baffle to contact a mounting flange to facilitate supporting said baffle within said centerbody,
- said second end portion supported by an end wall flange extending from an end wall of the centerbody,
- wherein cooling fluid is supplied to the baffle through at least one aperture in said radially inner wall axially between the second end portion and the intermediate support.
2 more elements
Dependencies are inferred from the claim text.