Anti-rotation feature for wear liners

Patent metadata

Field	Value
Publication number	US-10451082-B2
Application number	US-201615237758-A
Country	US
Kind code	B2
Filing date	Aug 16, 2016
Priority date	Aug 16, 2016
Publication date	Oct 22, 2019
Grant date	Oct 22, 2019

Abstract

A gas turbine engine and an anti-rotation feature is disclosed. The gas turbine engine includes a fan case, a stator disposed within the fan case, and a wear liner disposed between the fan case and the stator, the wear liner including a wear liner body, and an anti-rotation feature affixed to the wear liner body, wherein the anti-rotation feature includes at least one mating surface to engage the stator to prevent rotation of the wear liner body.

First claim

What is claimed is:

1. In combination, a wear liner and a fan case, the combination of the wear liner and fan case comprising:
a stator disposed within the fan case, the stator comprising a first stator vane and a second stator vane;
a wear liner body disposed between the fan case and the stator; and
an anti-rotation feature affixed to the wear liner body and disposed between the first stator vane and the second stator vane, wherein the anti-rotation feature includes a first mating surface to engage an edge of the first stator vane and a second mating surface to engage an edge of the second stator vane to prevent rotation of the wear liner body.

2. The wear liner of claim 1 , wherein the wear liner is circumferentially disposed within the fan case.

3. The wear liner of claim 1 , wherein the wear liner body is formed from a plurality of wear liner portions.

4. The wear liner of claim 1 , wherein the wear liner body includes a wear liner groove.

5. The wear liner of claim 4 , wherein the anti-rotation feature is affixed to the wear liner groove.

6. The wear liner of claim 1 , wherein the wear liner body includes a wear liner lip.

7. The wear liner of claim 6 , wherein the anti-rotation feature is affixed to the wear liner lip.

8. The wear liner of claim 1 , wherein the anti-rotation feature is integrally formed with the wear liner body.

9. The wear liner of claim 1 , wherein the anti-rotation feature is formed from at least one of metal, composite material, plastic, and ceramic.

10. A gas turbine engine comprising:
a fan case;
a stator disposed within the fan case, stator comprising a first stator vane and a second stator vane; and
a wear liner disposed between the fan case and the stator, the wear liner including:
a wear liner body; and
an anti-rotation feature affixed to the wear liner body and disposed between the first stator vane and the second stator vane, wherein the anti-rotation feature includes a first mating surface to engage an edge of the first stator vane and a second mating surface to engage an edge of the second stator vane to prevent rotation of the wear liner body.

11. The gas turbine engine of claim 10 , further comprising a load dam affixed to an interior surface of the fan case to engage the stator to prevent rotation of the stator relative to the fan case.

12. The gas turbine engine of claim 11 , wherein the anti-rotation feature is aligned with the load dam.

13. The gas turbine engine of claim 10 , wherein the at least one mating surface engages a stator edge of the stator.

14. The gas turbine engine of claim 10 , wherein the wear liner is circumferentially disposed within the fan case.

15. The gas turbine engine of claim 10 , wherein the wear liner body is formed from a plurality of portions.

16. The gas turbine engine of claim 10 , wherein the wear liner body includes a wear liner groove.

17. The gas turbine engine of claim 16 , wherein the anti-rotation feature is affixed to the wear liner groove.

18. The gas turbine engine of claim 10 , wherein the wear liner body includes a wear liner lip.

19. The gas turbine engine of claim 18 , wherein the anti-rotation feature is affixed to the wear liner lip.

20. The gas turbine engine of claim 10 , wherein the anti-rotation feature is integrally formed with the wear liner body.

Assignees

• United Technologies Corp

Inventors

• Freeman Thomas

Classifications

• F02K3/06

  with front fan · CPC title

• F01D25/246

  Fastening of diaphragms or stator-rings · CPC title

• F05D2220/36

  specially adapted for the fan of turbofan engines · CPC title

• F01D5/3092

  Protective layers between blade root and rotor disc surfaces, e.g. anti-friction layers (F01D5/288 takes precedence) · CPC title

• F05D2260/36

  by a form fit connection, e.g. by interlocking · CPC title