Internally cooled airfoil for a gas turbine engine and method
First Claim
1. An internally-cooled airfoil for a gas turbine engine, the airfoil having at least one internal cooling passage generally located between opposite pressure and suction sidewalls and including an insert therein, the airfoil comprising at least one substantially chordwise-extending and internally-projecting stiffener located on an internal surface of one of the sidewalls and extending towards the insert, the stiffener having two opposite ends and a height less than a distance between the internal surface and the insert at the location of the stiffener such that the stiffener is free from contact with the insert, one end of the stiffener being integral with an adjacent structure extending inwardly from the internal surface and the other end of the stiffener being freestanding.
2 Assignments
0 Petitions
Accused Products
Abstract
An internally-cooled airfoil for a gas turbine engine, wherein the airfoil comprises at least one substantially chordwise-extending and internally-projecting stiffener located on an internal surface of one of the sidewalls and adjacent to the insert.
30 Citations
13 Claims
- 1. An internally-cooled airfoil for a gas turbine engine, the airfoil having at least one internal cooling passage generally located between opposite pressure and suction sidewalls and including an insert therein, the airfoil comprising at least one substantially chordwise-extending and internally-projecting stiffener located on an internal surface of one of the sidewalls and extending towards the insert, the stiffener having two opposite ends and a height less than a distance between the internal surface and the insert at the location of the stiffener such that the stiffener is free from contact with the insert, one end of the stiffener being integral with an adjacent structure extending inwardly from the internal surface and the other end of the stiffener being freestanding.
-
8. An airfoil core for use in a gas turbine engine, the airfoil core having internal surfaces and comprising:
-
at least one cooling air passage located inside the airfoil core and defined at least in part by the internal surfaces, the passage comprising a cavity for an insert; and at least one stiffener extending from one of the internal surfaces of the airfoil core defining the cavity for the insert, the stiffener having a height less than a distance from said one of the internal surfaces to the insert when positioned in the cavity, the stiffener having two opposite ends, at least one of which is integrated with an adjacent structure extending from said one of the internal surfaces, the other end of the stiffener being freestanding.
-
Specification