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US 6,282,786 B1Granted
Method of making injection formed hybrid airfoil
AssigneeGeneral Electric Company
InventorsCharles R. Evans, Joseph T. Begovich, Jr., Douglas D. Ward
Life of this patent
Estimating the term…
Abstract
A hybrid gas turbine engine airfoil is made by forming a metal airfoil with a pocket in one side thereof. The pocket is covered by a caul. An elastomeric fluid is injected into the pocket and cured therein for bonding thereto. The caul is removed from the airfoil to expose the cured elastomer conforming to the aerodynamic profile thereof.
Claims17
A method of making a hybrid gas turbine engine airfoil comprising:
- forming a metal airfoil with a pocket in a first side thereof;
- covering said pocket with a caul;
- injecting an elastomeric fluid into said pocket;
- and
- curing said fluid in said pocket for bonding thereto.
2 more elements
A method of making a hybrid airfoil comprising:
- forming a metal airfoil with a plurality of adjoining pockets in a first side thereof;
- covering said pockets with a caul;
- injecting an elastomeric fluid in turn into said pockets;
- and
- curing said fluid in said pockets for bonding thereto.
2 more elements
Dependencies are inferred from the claim text.