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US 6,354,797 B1Granted
Brazeless fillet turbine nozzle
AssigneeGeneral Electric Company
InventorsJohn Peter Heyward, Gregory Alan White, Richard Hartley Pugh
Life of this patent
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Abstract
A turbine nozzle includes a plurality of airfoils and integral hubs brazed into corresponding seats of outer and inner bands. The hubs have brazeless fillets blending the bands to the airfoils.
Claims20
A turbine nozzle comprising:
- an outer band having a plurality of outer seats therein;
- an inner band having a plurality of inner seats therein;
- a plurality of nozzle vanes each including an airfoil having outer and inner hubs at opposite ends thereof blending therewith at corresponding outer and inner fillets;
- and
- said vane hubs being disposed in corresponding ones of said outer and inner seats to define gaps therebetween having braze therein to fixedly join said vanes to said bands, and said fillets being brazeless adjacent said airfoils.
2 more elements
A turbine nozzle comprising a plurality of airfoils and integral hubs brazed into corresponding seats of outer and inner bands, with said hubs having brazeless fillets blending said bands to said airfoils.
A method of forming a turbine nozzle comprising:
- separately casting a plurality of vanes and outer and inner bands;
- assembling said vanes and bands by inserting hubs of said vanes into corresponding seats in said bands;
- and
- brazing said hubs into said seats without spreading braze across fillets of said hubs adjoining airfoils of said vanes.
1 more element
Dependencies are inferred from the claim text.