IP Library › Granted Patent US 10,167,726
Granted Patent B2
US 10,167,726 · App. 14/821,831 · Granted Jan 1, 2019

Component core with shaped edges

Inventors: Matthew A. Devore (Cromwell, CT); Matthew S. Gleiner (Norwalk, CT); Douglas C. Jenne (Ashford, CT)
Assignee: UNITED TECHNOLOGIES CORPORATION
F01D5/186F01D5/187F01D9/041F01D11/08F01D25/12B22C9/10B22C9/106F05D2220/32F05D2230/211F05D2240/12F05D2240/126F05D2240/30F05D2240/55F05D2240/81F05D2260/202Y02T50/676
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Quick Facts
Patent No.
US 10,167,726
App. No.
14/821,831
Granted
Jan 1, 2019
Kind
B2
Abstract

A gas turbine engine component according to an exemplary aspect of the present disclosure includes, among other things, at least one cooling passage. The at least one cooling passage includes a first wall and a second wall bounding the at least one cooling passage, the first wall having a plurality of first surface features and the second wall having a plurality of second surface features. The plurality of first surface features and the plurality of second surface features are arranged such that a width of the cooling passage varies along a length of the cooling passage defined by the plurality of first surface features and the plurality of second surface features. The plurality of first surface features has a first profile, and the plurality of second surface features has a second, different profile. A casting core for forming cooling passages in an aircraft component is also disclosed.

Claims (26)

1. A gas turbine engine component, comprising:

an airfoil section extending from a platform;

a cooling passage located in at least one of said airfoil section and said platform, said cooling passage including a first wall and an opposed second wall bounding said cooling passage, said first wall having a plurality of first surface features and said second wall having a plurality of second surface features;

wherein said plurality of first surface features and said plurality of second surface features are arranged such that a width of said cooling passage varies along a length of said cooling passage, said plurality of first surface features having a first profile, and said plurality of second surface features having a second, different profile;

wherein said plurality of first surface features are spaced apart from said plurality of second surface features;

wherein said plurality of second surface features includes three surface features each having an elongated profile that protrudes from said second wall into said cooling passage; and

wherein said plurality of first surface features includes a waveform surface, said waveform surface is curved, and said plurality of first surface features are arranged to define a sinusoidal geometry changing in frequency and amplitude along the length of the cooling passage.

2. The gas turbine engine component as recited in claim 1 , wherein at least one of said plurality of first surface features and said plurality of second surface features includes a grooved surface.

3. The gas turbine engine component as recited in claim 1 , wherein said first wall includes a plurality of third surface features, said plurality of third surface features having a different profile than said plurality of first surface features and said second surface features.

4. The gas turbine engine component as recited in claim 1 , wherein said plurality of first surface features and said plurality of second surface features are arranged to define at least two converging regions along said cooling passage.

5. The gas turbine engine component as recited in claim 4 , wherein each of said plurality of first surface features and said plurality of second surface features includes a surface contour.

6. The gas turbine engine component as recited in claim 4 , wherein said plurality of first surface features and said plurality of second surface features are aligned along a first region of said cooling passage and are staggered along a second region of said cooling passage.

7. The gas turbine engine component as recited in claim 4 , wherein said plurality of first surface features has a first distribution along said length and said plurality of second surface features has a second, different distribution along said length.

8. The gas turbine engine component as recited in claim 4 , comprising a plurality of internal features formed within said cooling passage.

9. The gas turbine engine component as recited in claim 8 , wherein a convergent portion of at least one of said plurality of first surface features is aligned with at least one of said plurality of internal features.

10. The gas turbine engine component as recited in claim 9 , wherein said plurality of internal features includes pedestals.

11. The gas turbine engine component as recited in claim 1 , wherein said platform has a pressure side and a suction side relative to said airfoil portion, and said plurality of first surface features and said plurality of second surface features extend along said pressure side.

12. The gas turbine engine component as recited in claim 1 , wherein said airfoil section has a leading edge and a trailing edge, said cooling passage includes an intermediate portion spaced between a first portion and a second portion, said first portion extending axially between an inlet and said leading edge, said second portion extending axially between an outlet and said trailing edge, and said plurality of first surface features and said plurality of second surface features being located in said intermediate portion.

13. The gas turbine engine component as recited in claim 12 , wherein at least one of said plurality of first surface features and said plurality of second surfaces feature is located in at least one of said first portion and said second portion.

14. The gas turbine engine component as recited in claim 1 , wherein said plurality of first surface features and said plurality of second surface features are located within said platform.

15. The gas turbine engine component as recited in claim 1 , wherein said plurality of first surface features and said plurality of second surface features are located in said airfoil section.

16. The gas turbine engine component as recited in claim 1 , wherein at least one of said plurality of first surface features and said plurality of second surface features include two surface features each having a triangular geometry.

17. The gas turbine engine component as recited in claim 3 , wherein said plurality of third surface features are spaced apart from said plurality of first surface features and said plurality of second surface features.

18. The gas turbine engine component as recited in claim 15 , wherein:

said airfoil section has a leading edge and a trailing edge; and

said cooling passage, said plurality of first surface features and said plurality of second surface features are located adjacent to the leading edge.

Assignments (3)
CHANGE OF NAME Recorded Jul 27, 2023
From: RAYTHEON TECHNOLOGIES CORPORATION
To: RTX CORPORATION
Reel/Frame 064714/0001 →
CORRECTIVE ASSIGNMENT TO CORRECT THE AND REMOVE PATENT APPLICATION NUMBER 11886281 AND ADD PATENT APPLICATION NUMBER 14846874. TO CORRECT THE RECEIVING PARTY ADDRESS PREVIOUSLY RECORDED AT REEL: 054062 FRAME: 0001. ASSIGNOR(S) HEREBY CONFIRMS THE CHANGE OF ADDRESS. Recorded Mar 4, 2021
From: UNITED TECHNOLOGIES CORPORATION
To: RAYTHEON TECHNOLOGIES CORPORATION
Reel/Frame 055659/0001 →
CHANGE OF NAME Recorded Sep 4, 2020
From: UNITED TECHNOLOGIES CORPORATION
To: RAYTHEON TECHNOLOGIES CORPORATION
Reel/Frame 054062/0001 →
Continuity (2)
Provisional Application 62048817 · Sep 11, 2014
Related Publication 20160076382A1 · Mar 17, 2016
Cited By (1)
US 12,595,739