Series impingement cooled airfoil
First Claim
Patent Images
1. A gas turbine engine airfoil comprising:
- first and second sidewalls joined together at opposite leading and trailing edges, and extending from a root to a tip;
said sidewalls being spaced apart from each other to define in part first and second adjoining flow chambers extending longitudinally therein, and defined in additional part by corresponding first and second partitions disposed between said sidewalls, with said second partition being in common with both said chambers, and obliquely joining said first partition; and
said first and second partitions including a plurality of first and second inlet holes, respectively, sized to meter cooling air therethrough in series impingement in said chambers.
1 Assignment
0 Petitions
Accused Products
Abstract
A gas turbine engine airfoil includes first and second sidewalls joined together at opposite leading and trailing edges, and extending longitudinally from a root to a tip. The sidewalls are spaced apart from each other to define in part first and second adjoining flow chambers extending longitudinally therein, and defined in additional part by corresponding first and second partitions disposed between the sidewalls. The second partition is common to both chambers, and both partitions include respective pluralities of first and second inlet holes sized to meter cooling air therethrough in series between the chambers.
-
Citations
20 Claims
-
1. A gas turbine engine airfoil comprising:
-
first and second sidewalls joined together at opposite leading and trailing edges, and extending from a root to a tip; said sidewalls being spaced apart from each other to define in part first and second adjoining flow chambers extending longitudinally therein, and defined in additional part by corresponding first and second partitions disposed between said sidewalls, with said second partition being in common with both said chambers, and obliquely joining said first partition; and said first and second partitions including a plurality of first and second inlet holes, respectively, sized to meter cooling air therethrough in series impingement in said chambers.
-
-
2. A gas turbine engine airfoil comprising:
-
first and second sidewalls joined together at opposite leasing and trailing edges, and extending from a root to a tip; said sidewalls being spaced apart from each other to define in part first and second adjoining flow chambers extending longitudinally therein, and defined in additional part by corresponding first and second partitions disposed between said sidewalls, with said second partition being in common with both said chambers, and obliquely joining said first partition; said first and second partitions including a plurality of first and second inlet holes, respectively, sized to meter cooling air therethrough in series impingement in said chambers; and an inlet channel extending longitudinally along said first partition for supplying said cooling air to said first chamber through said first inlet holes. - View Dependent Claims (3, 4, 5, 6, 7, 8, 9, 10)
-
-
11. A method of cooling a gas turbine engine airfoil comprising:
-
channeling cooling air obliquely between opposite pressure and suction sidewalls thereof in series impingement therein, with corresponding pressure drops; and discharging said air through said suction sidewall in rows of cooling air films downstream from a leading edge of said airfoil with corresponding decreasing pressure between said row for reducing difference in blowing ratio therebetween. - View Dependent Claims (12, 13, 14)
-
-
15. A gas turbine engine airfoil comprising:
-
first and second sidewalls joined together at opposite leading and trailing edges, and extending from a root to a tip; said sidewalls being spaced apart from each other to define in part a pair of adjoining flow chambers extending longitudinally therein, and defined in additional part by corresponding partitions including a common partition positioning a leading edge one of said chambers directly behind said leading edge and a first-side one of said chambers disposed aft therefrom along only said first sidewall; and each of said partitions including a row of inlet holes sized to meter cooling air therethrough in series impingement in said chambers. - View Dependent Claims (16, 17, 18, 19, 20)
-
Specification