IP Library Granted Patent US 10,018,066
Granted Patent B2
US 10,018,066 · App. 14/862,342 · Granted Jul 10, 2018

Mini blind stator leakage reduction

Inventor: Philip Robert Rioux (North Berwick, ME)
Assignee: UNITED TECHNOLOGIES CORPORATION
F01D11/008F01D5/02F01D5/225F01D9/041F01D11/005F05D2220/32F05D2240/11F05D2240/55F05D2240/80F05D2250/182F05D2250/183F05D2250/184F05D2250/71F05D2250/75Y02T50/672
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Quick Facts
Patent No.
US 10,018,066
App. No.
14/862,342
Granted
Jul 10, 2018
Kind
B2
Abstract

What is described is a partial platform. The partial platform includes a leading edge, a trailing edge, a first circumferential edge and a second circumferential edge. The first circumferential edge and the second circumferential edge are both swept such that a central circumferential axis forms a substantially rounded or squared S shape.

Claims (36)

1. A partial platform, the partial platform comprising:

a leading edge;

a trailing edge;

a first circumferential edge; and

a second circumferential edge wherein the first circumferential edge and the second circumferential edge are both partially swept such that a central circumferential axis forms a substantially rounded or squared S shape.

2. The partial platform of claim 1 , wherein the first circumferential edge includes a first partial swept edge near the leading edge that is outward and the second circumferential edge includes a second partial swept edge that is inward.

3. The partial platform of claim 2 , wherein the first circumferential edge includes a third partial swept edge near the trailing edge that is inward and the second circumferential edge includes a fourth partial swept edge near the trailing edge that is outward.

4. The partial platform of claim 1 , wherein the central circumferential axis forms a substantially rounded S shape.

5. The partial platform of claim 1 , wherein the central circumferential axis forms a substantially squared S shape.

6. The partial platform of claim 1 , wherein the partial platform is part of an inner diameter platform.

7. The partial platform of claim 1 , wherein the partial platform is configured to be utilized in a high pressure compressor section of a gas turbine engine.

8. A system for reducing an amount of leakage in a gas turbine engine, the system comprising:

an airfoil; and

a partial platform of a segmented platform, the partial platform being coupled to the airfoil, configured to partially rotate in response to the airfoil becoming loaded and including:

a leading edge;

a trailing edge;

a first circumferential edge; and

a second circumferential edge wherein the first circumferential edge and the second circumferential edge are both partially swept such that a central circumferential axis forms a substantially rounded or squared S shape.

9. The system of claim 8 , wherein the first circumferential edge includes a first partial swept edge near the leading edge that is outward and the second circumferential edge includes a second partial swept edge that is inward.

10. The system of claim 9 , wherein the first circumferential edge includes a third partial swept edge near the trailing edge that is inward and the second circumferential edge includes a fourth partial swept edge near the trailing edge that is outward.

11. The system of claim 8 , wherein the central circumferential axis forms a substantially rounded S shape.

12. The system of claim 8 , wherein the central circumferential axis forms a substantially squared S shape.

13. The system of claim 8 , wherein the segmented platform is an inner diameter platform.

14. The system of claim 8 , wherein the system is configured to be utilized in a high pressure compressor section of the gas turbine engine.

15. A system for reducing for reducing an amount of leakage in a gas turbine engine, the system comprising:

a segmented platform encircling an axis of rotation of the gas turbine engine and including a plurality of partial platforms, each of the plurality of partial platforms including:

a leading edge;

a trailing edge;

a first partially swept circumferential edge; and

a second partially swept circumferential edge such that a central circumferential axis forms a substantially rounded or squared S shape; and

a plurality of airfoils coupled to the segmented platform.

16. The system of claim 15 , wherein the first swept circumferential edge includes a first partial swept edge near the leading edge that is outward and the second swept circumferential edge includes a second partial swept edge that is inward.

17. The system of claim 15 , wherein the first swept circumferential edge includes a third partial swept edge near the trailing edge that is inward and the second swept circumferential edge includes a fourth partial swept edge near the trailing edge that is outward.

18. The system of claim 15 , wherein the central circumferential axis forms a substantially rounded S shape.

19. The system of claim 15 , wherein the central circumferential axis forms a substantially squared S shape.

20. The system of claim 15 , wherein the segmented platform is an inner diameter platform.

Assignments (4)
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 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 23, 2015
From: RIOUX, PHILIP ROBERT
To: UNITED TECHNOLOGIES CORPORATION
Reel/Frame 036632/0695 →
Continuity (2)
Provisional Application 62093940 · Dec 18, 2014
Related Publication 20160177766A1 · Jun 23, 2016
Cited By (1)
US 12,331,659