IP Library Granted Patent US 11,098,591
Granted Patent B1
US 11,098,591 · App. 16/780,341 · Granted Aug 24, 2021

Turbine blade with contoured fillet

Inventors: Jeffrey T. Morton (Manchester, CT); David A. Niezelski (Manchester, CT)
Assignee: RAYTHEON TECHNOLOGIES CORPORATION
F01D5/141F05D2230/21F05D2240/30
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Quick Facts
Patent No.
US 11,098,591
App. No.
16/780,341
Granted
Aug 24, 2021
Kind
B1
Abstract

A turbine blade for a gas turbine engine having an airfoil to platform fillet, wherein the fillet is contoured in accordance with the coordinates of Table 1.

Claims (15)

1. A turbine blade for a gas turbine engine having an airfoil to platform fillet, wherein the fillet is contoured in accordance with Cartesian coordinate values of X, Y, and Z set forth in Table 1, wherein the Cartesian coordinate values have an origin at a center point of an inner diameter edge of a forward root face of a root of the turbine blade, and the Cartesian coordinates have a tolerance of +/−0.020 inches.

2. The turbine blade of claim 1 , wherein the turbine blade is a second stage turbine blade of a high pressure turbine of the gas turbine engine.

3. The turbine blade of claim 2 , further comprising a platform and the root, the airfoil extending from the platform, wherein the platform, the root, and the airfoil are cast as a single part.

4. The turbine blade of claim 1 , further comprising a platform and the root, the airfoil extending from the platform, wherein the platform, the root, and the airfoil are cast as a single part.

5. A turbine rotor assembly for a gas turbine engine, comprising:

a rotor disk;

a plurality of turbine blades secured to the rotor disk, each turbine blade having an airfoil to platform fillet, wherein the fillet is contoured in accordance with Cartesian coordinate values of X, Y, and Z set forth in Table 1, wherein the Cartesian coordinate values have an origin at a center point of an inner diameter edge of a forward root face of a root of the turbine blade, and the Cartesian coordinates have a tolerance of +/−0.020 inches.

6. The turbine rotor assembly of claim 5 , wherein the turbine rotor assembly is a second stage turbine rotor assembly of a high pressure turbine of the gas turbine engine.

7. The turbine rotor assembly of claim 6 , wherein each of the plurality of turbine blades further comprise a platform and the root, the airfoil extending from the platform, wherein the platform, the root, and the airfoil are cast as a single part.

8. The turbine rotor assembly of claim 5 , wherein each of the plurality of turbine blades further comprise a platform and the root, the airfoil extending from the platform, wherein the platform, the root, and the airfoil are cast as a single part.

9. A method of providing a transition between an airfoil and a platform of a turbine blade of a gas turbine engine, comprising:

forming a fillet between the airfoil and the platform, wherein the fillet is contoured in accordance with Cartesian coordinate values of X, Y, and Z set forth in Table 1, wherein the Cartesian coordinate values have an origin at a center point of an inner diameter edge of a forward root face of a root of the turbine blade, and the Cartesian coordinates have a tolerance of +/−0.020 inches.

10. The method of claim 9 , wherein the turbine blade is a second stage turbine blade of a high pressure turbine of the gas turbine engine.

11. The method of claim 10 , wherein the turbine blade further comprises a platform and the root, the airfoil extending from the platform, wherein the platform, the root, and the airfoil are cast as a single part.

12. The method of claim 9 , wherein the turbine blade further comprises a platform and the root, the airfoil extending from the platform, wherein the platform, the root, and the airfoil are cast as a single part.

Assignments (3)
CHANGE OF NAME Recorded Jul 27, 2023
From: RAYTHEON TECHNOLOGIES CORPORATION
To: RTX CORPORATION
Reel/Frame 064714/0001 →
CHANGE OF NAME Recorded Jun 15, 2021
From: UNITED TECHNOLOGIES CORPORATION
To: RAYTHEON TECHNOLOGIES CORPORATION
Reel/Frame 056596/0274 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 4, 2020
From: MORTON, JEFFREY T.; NIEZELSKI, DAVID A.
To: UNITED TECHNOLOGIES CORPORATION
Reel/Frame 051797/0827 →
Continuity (2)
Provisional Application 62809277 · Feb 22, 2019
Provisional Application 62800740 · Feb 4, 2019