Trapped insert turbine airfoil
AssigneeGeneral Electric Company
InventorsGary C. Liotta, Paul J. Acquaviva, James N. Fleck
Life of this patent
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Abstract
A gas turbine engine airfoil is manufactured by forming an internal retention seat in two complementary airfoil parts. An insert is fabricated for retention in the seat. The two parts are assembled with the insert disposed in the seat therebetween. The parts are then bonded together to trap the insert therein to collectively define the airfoil. The insert and seat may be precisely fabricated for improving the efficiency of the airfoil.
Claims21
A method of making a gas turbine engine airfoil comprising:
- forming an internal retention seat entirely inside two complementary airfoil parts;
- fabricating an insert configured for retention in said seat;
- assembling together said two parts, with said insert therebetween in said seat;
- and
- bonding together said two parts to trap said insert therein, and collectively define said airfoil.
An impingement baffle for channeling cooling fluid between two airfoil parts bonded together and having an internal retention seat disposed entirely inside said two parts for retaining said baffle, said baffle comprising:
- a hollow retention hub configured for being trapped in said retention seat between said parts;
- and
- a perforate tube extending from said hub for distributing said fluid in impingement inside said airfoil parts.
Dependencies are inferred from the claim text.