IP Library Granted Patent US 11,933,219
Granted Patent B2
US 11,933,219 · App. 17/878,653 · Granted Mar 19, 2024

Stator configuration for gas turbine engine

Inventors: Colin G. Amadon (Kennebunk, ME); Michael C. Firnhaber (East Hampton, CT)
Assignee: RTX CORPORATION
F02C7/04F04D29/545F04D19/002F05D2220/36F05D2240/12F05D2260/606
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Quick Facts
Patent No.
US 11,933,219
App. No.
17/878,653
Granted
Mar 19, 2024
Kind
B2
Abstract

A stator configuration for a gas turbine engine including: a splitter segment, the splitter segment extending from a forward end to a rearward end; a forward most first stator extending radially outwardly from the splitter segment, the forward most first stator being completely located downstream from the forward end of the splitter segment; and a forward most second stator extending radially inwardly from the splitter segment, the splitter segment, the forward most first stator and the forward most second stator being formed as a single, integrally formed structure, the forward most first stator positioned closer to the forward end relative to a distance between the forward most second stator and the forward end and the forward most second stator positioned closer to the rearward end relative to a distance between the forward most first stator and the rearward end.

Claims (32)

1. A stator configuration for a gas turbine engine comprising:

a splitter segment, the splitter segment extending from a forward end to a rearward end, the splitter segment being configured to split an incoming fluid flow into a first, radially outer stream and a second, radially inner stream at the forward end;

a forward most first stator extending radially outwardly from the splitter segment, the forward most first stator being completely located downstream from the forward end of the splitter segment;

a forward most second stator extending radially inwardly from the splitter segment, the splitter segment, the forward most first stator and the forward most second stator being formed as a single, integrally formed structure, the forward most first stator positioned closer to the forward end relative to a distance between the forward most second stator and the forward end and the forward most second stator positioned closer to the rearward end relative to a distance between the forward most first stator and the rearward end;

a flange extending radially inwardly from the forward most second stator, the flange providing a location for operative coupling of the stator configuration to a stationary structure of the gas turbine engine; and

wherein the splitter segment defines a radially outward boundary of the second, radially inner stream between the forward end and the forward most second stator such that an outer tip of a rotor passes in close proximity to the splitter segment at the radially outward boundary of the second, radially inner stream defined by the splitter segment.

2. The stator configuration of claim 1 , wherein the splitter segment, the forward most first stator and the forward most second stator are formed from a single manufacturing process to form the single, integrally formed structure.

3. The stator configuration of claim 1 , wherein the splitter segment, the forward most first stator and the forward most second stator are multiple components joined together to form the single, integrally formed structure.

4. The stator configuration of claim 1 , further comprising a protrusion extending rearward from the flange to provide a locating feature during assembly and/or operation of the stator configuration with the gas turbine engine.

5. The stator configuration of claim 1 , wherein a rearward end of the splitter segment is in contact with a structure that at least partially defines the second, radially inner stream.

6. The stator configuration of claim 1 , wherein the splitter segment is in contact with a forward edge of a radial flow separation wall of the gas turbine engine.

7. The stator configuration of claim 1 , wherein an inner wall of the splitter segment defines the radially outward boundary of the second, radially inner stream at an axial location aligned with the rotor.

8. The stator configuration of claim 1 , wherein the forward most first stator is completely located upstream from the forward most second stator.

9. A gas turbine engine comprising:

a fan section;

a compressor section;

a combustor section;

a turbine section; and

a stator configuration for radially separating a fluid flow into multiple streams, the stator configuration comprising:

a splitter segment configured to split the fluid flow into a first, radially outer stream and a second, radially inner stream at a forward end of the splitter segment;

a forward most first stator extending radially outwardly from the splitter segment; and

a forward most second stator extending radially inwardly from the splitter segment, the splitter segment, the forward most first stator and the forward most second stator being formed as a single, integrally formed structure, the splitter segment extending from the forward end to a rearward end, the forward most first stator positioned closer to the forward end relative to a distance between the forward most second stator and the forward end and the forward most second stator positioned closer to the rearward end relative to a distance between the forward most first stator and the rearward end, and the forward most first stator being completely located downstream from the forward end of the splitter segment;

a flange extending radially inwardly from the forward most second stator, the flange providing a location for operative coupling of the stator configuration to a stationary structure of the gas turbine engine; and

wherein the splitter segment defines a radially outward boundary of the second, radially inner stream between the forward end and the forward most second stator such that an outer tip of a rotor passes in close proximity to the splitter segment at the radially outward boundary of the second, radially inner stream defined by the splitter segment.

10. The gas turbine engine of claim 9 , wherein the splitter segment, the forward most first stator and the forward most second stator are formed from a single manufacturing process to form the single, integrally formed structure.

11. The gas turbine engine of claim 9 , wherein the splitter segment, the forward most first stator and the forward most second stator are multiple components welded together to form the single, integrally formed structure.

12. The gas turbine engine of claim 9 , further comprising a protrusion extending rearward from the flange to provide a locating feature during assembly and/or operation of the stator configuration with the gas turbine engine.

13. The gas turbine engine of claim 9 , wherein the rearward end of the splitter segment is in contact with a structure that at least partially defines the second, radially inner stream.

14. The gas turbine engine of claim 9 , wherein the splitter segment is in contact with a forward edge of a radial flow separation wall of the gas turbine engine.

15. The gas turbine engine of claim 9 , wherein an inner wall of the splitter segment defines the radially outward boundary of the second, radially inner stream at an axial location aligned with the rotor.

16. The gas turbine engine of claim 9 , the forward end of the splitter segment shaped to receive flow from a range of angles.

17. The gas turbine engine of claim 9 , wherein the forward most first stator is completely located upstream from the forward most second stator.

Assignments (3)
CHANGE OF NAME Recorded Jul 27, 2023
From: RAYTHEON TECHNOLOGIES CORPORATION
To: RTX CORPORATION
Reel/Frame 064402/0837 →
CHANGE OF NAME Recorded Jul 25, 2023
From: UNITED TECHNOLOGIES CORPORATION
To: RAYTHEON TECHNOLOGIES CORPORATION
Reel/Frame 064380/0922 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 25, 2023
From: AMADON, COLIN G.; FIRNHABER, MICHAEL C.
To: UNITED TECHNOLOGIES CORPORATION
Reel/Frame 064380/0934 →
Continuity (2)
Continuation 16042510 · Jul 23, 2018
Related Publication 20230123950A1 · Apr 20, 2023