Back to results
US 10,478,920 B2Granted
Dual wall components for gas turbine engines
AssigneeROLLS-ROYCE plc
InventorQuinlan Y. Shuck
Life of this patent
Estimating the term…
Abstract
A dual wall component for use in a gas turbine engine and a method for making the same are disclosed herein. The dual wall component includes an inner support wall and an outer shield wall that extends around the inner support wall to act as a heat shield for the inner support wall.
Claims18
A method for producing a dual wall component for a gas turbine engine, the method comprising:
- depositing powder feedstock at predetermined positions on an inner wall,
- applying a first directed energy beam onto the powder feedstock to create pedestals and form inner weld joints between an outer surface of the inner wall and the pedestals,
- positioning an outer wall on the pedestals, and
- welding the pedestals to an inner surface of the outer wall by applying a second directed energy beam onto an outer surface of the outer wall at predetermined positions corresponding to the pedestals to form outer weld joints between the inner surface of the outer wall and the pedestals.
1 more element
An airfoil for use in a gas turbine engine, the airfoil comprising:
- an inner wall;
- an outer wall that extends around the inner wall to act as a heat shield for the inner wall;
- a plurality of spaced apart pedestals welded to an outer surface of the inner wall to form an inner weld joint and welded to an inner surface of the outer wall to form an outer weld joint, wherein the pedestals transmit loads between the inner wall and the outer wall while maintaining a spaced apart relationship between the inner wall and the outer wall to define a cooling channel between the inner wall and the outer wall to conduct cooling air through the airfoil;
- and
- a plurality of fill caps welded to an outer surface of the outer wall to form a cap weld joint located opposite the outer weld joints along the outer wall to smooth concave features formed in the outer wall during welding of the pedestals to the outer wall.
2 more elements
A dual wall component for use in a gas turbine engine, the dual wall component comprising:
- an inner wall;
- an outer wall spaced apart from the inner wall to form a cooling channel between the inner wall and the outer wall;
- a plurality of spaced apart pedestals that extend from the inner wall to the outer wall through the cooling channel, each pedestal welded to the inner wall to form an inner weld joint and welded to the outer wall to form an outer weld joint;
- and
- a plurality of fill caps welded to the outer surface of the outer wall to form a cap weld joint located opposite the outer weld joints along the outer wall.
2 more elements
Dependencies are inferred from the claim text.