IP Library Granted Patent US 10,060,267
Granted Patent B2
US 10,060,267 · App. 14/787,287 · Granted Aug 28, 2018

Gas turbine engine airfoil cooling passage turbulator pedestal

Inventor: Paul M. Lutjen (Kennebunkport, ME)
Assignee: United Technologies Corporation
F01D5/186F01D5/187F05D2230/21F05D2240/304F05D2260/2212F05D2260/2214Y02T50/673Y02T50/676
View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 10,060,267
App. No.
14/787,287
Granted
Aug 28, 2018
Kind
B2
Abstract

A gas turbine engine component includes a structure that provides a cooling passage. The structure has a turbulator with a pedestal joining opposing first and second surfaces. The turbulator includes first and second legs spaced apart from one another and adjoining the pedestal. The first leg adjoins the second surface, and the second leg adjoins the first surface.

Claims (18)

1. A gas turbine engine component comprising:

a structure providing a cooling passage having a turbulator with a pedestal joining opposing first and second surfaces, the turbulator including first and second legs spaced apart from one another in a thickness direction and adjoining the pedestal, the first leg adjoining the second surface, and the second leg adjoining the first surface, and the pedestal extends in the thickness direction between the first and second surfaces, and the first and second legs do not fully extend between the first and second surfaces in the thickness direction, at least one of the first and second legs extend to a terminal end toward another pedestal, wherein the terminal end is disconnected from the other pedestal, wherein the structure includes first and second rows of pedestals, the first row of pedestals including the turbulator, wherein the turbulator is interleaved with the second row of pedestals, and the second row of pedestals arranged downstream from the first row of pedestals, wherein the first and second legs each include terminal ends that respectively provide first and second tips arranged downstream from the second row of pedestals.

2. The gas turbine engine component according to claim 1 , comprising a third row of pedestals arranged downstream from the second row of pedestals, the first and second tips arranged upstream from the third row of pedestals.

3. The gas turbine engine component according to claim 1 , wherein at least one of the first and second legs are airfoil-shaped.

4. The gas turbine engine component according to claim 1 , wherein at least one of the first and second legs are triangular-shaped.

5. The gas turbine engine component according to claim 1 , wherein the structure is an airfoil.

6. The gas turbine engine component according to claim 5 , wherein the first and second legs extend in a chordwise direction.

7. The gas turbine engine component according to claim 6 , wherein the turbulator is arranged in a trailing edge cooling passage.

8. The gas turbine engine component according to claim 1 , wherein first and second legs overlap in a radial direction.

9. The gas turbine engine component according to claim 1 , wherein the first and second legs are spaced apart from one another in a non-overlapping relationship in the radial direction.

10. The gas turbine engine component according to claim 1 , wherein the structure is one of a blade, vane, platform, blade outer air seal or combustor liner.

11. An airfoil for a gas turbine engine comprising:

an airfoil structure providing a cooling passage having a turbulator with a pedestal joining opposing first and second surfaces, the turbulator including first and second legs spaced apart from one another in a thickness direction and adjoining the pedestal, the first leg adjoining the second surface, the second leg adjoining the first surface, the pedestal extends in the thickness direction between the first and second surfaces, and the first and second legs extend in a chordwise direction, and the first and second legs do not fully extend between the first and second surfaces in the thickness direction, at least one of the first and second legs extend to a terminal end toward another pedestal, wherein the terminal end is disconnected from the other pedestal, wherein the structure includes first, second and third rows of pedestals, the first row of pedestals including the turbulator, and the second row of pedestals arranged downstream from the first row of pedestals, and the third row of pedestals arranged downstream from the second row of pedestals, the turbulator is interleaved with the second row of pedestals, the first and second legs each include terminal ends that respectively provide first and second tips arranged downstream from the second row of pedestals, the first and second tips arranged upstream from the third row of pedestals.

12. The airfoil according to claim 11 , wherein the airfoil is a turbine blade, and the turbulator is arranged in a trailing edge cooling passage.

13. The airfoil according to claim 11 , wherein first and second legs overlap in a radial direction.

14. The airfoil according to claim 11 , wherein the first and second legs are spaced apart from one another in a non-overlapping relationship in the radial direction.

15. A core for a producing a gas turbine engine component, comprising:

a core structure configured to provide a cooling passage, the core structure having an aperture corresponding to shape of a turbulator with a pedestal joining opposing first and second surfaces corresponding to opposing surfaces of the core structure, the aperture providing a turbulator shape configured to provide first and second legs spaced apart from one another in a thickness direction and adjoining the pedestal, the first leg adjoining the second surface, and the second leg adjoining the first surface, and the pedestal configured to extend in the thickness direction between the first and second surfaces, and the first and second legs do not fully extend between the first and second surfaces in the thickness direction, at least one of the first and second legs configured to extend to a terminal end toward another pedestal, wherein the terminal end is disconnected from the other pedestal, wherein the core structure configured to provide first and second rows of pedestals, the first row of pedestals including the turbulator, wherein the turbulator is interleaved with the second row of pedestals, and the second row of pedestals arranged downstream from the first row of pedestals, wherein the first and second legs configured to each include terminal ends that respectively provide first and second tips arranged downstream from the second row of pedestals.

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 61823437 · May 15, 2013
Related Publication 20160069191A1 · Mar 10, 2016