Wear liner spring seal

Patent metadata

Field	Value
Publication number	US-9353649-B2
Application number	US-201313736437-A
Country	US
Kind code	B2
Filing date	Jan 8, 2013
Priority date	Jan 8, 2013
Publication date	May 31, 2016
Grant date	May 31, 2016

Abstract

A wear liner for a stator vane includes a shaped member, comprising a U-shaped portion that receives a foot of a stator vane. A first end of the wear liner is biased into contact with the stator vane. A spring seal extends from the U-shaped portion and into bias contact with an inner surface of the support structure to further prevent leakage between the stator foot and case support structure.

First claim

What is claimed is:

1. A wear liner for a stator vane comprising:
a shaped member comprising a U-shaped portion for receiving a foot of a stator vane;
a first end biased into contact with the stator vane;
a second end extending past an outer surface of the foot of the stator vane;
a spring seal extending from the second end axially toward the U-shaped portion and biased into contact with a case structure supporting the stator vane.

2. The wear liner as recited in claim 1 , wherein the first end comprises a curve intersecting transverse surfaces of the foot.

3. The wear liner as recited in claim 1 , including a second end including a portion extending radially inward and overlapping an outer surface of the foot.

4. The wear liner as recited in claim 3 , wherein the second end defines a foot for holding the wear liner onto the vane foot.

5. The wear liner as recited in claim 1 , wherein the spring seal is attached near the second end and includes a curved end portion that extends axial toward the U-shaped portion.

6. The wear liner as recited in claim 1 , wherein the wear liner comprises a single sheet of material.

7. A stator mount assembly comprising:
a slot formed on a case structure for receiving a vane foot, the slot including a groove; and
a wear liner including a U-shaped portion for receiving a foot of a stator vane, a first end biased into contact with a radially inner surface of the stator vane, a second end extending over a radially outer surface of the stator vane and a spring seal extending axial away from the second end toward the U-shaped portion and biased into contact with the case structure supporting the stator vane.

8. The stator mount assembly as recited in claim 7 , wherein the slot includes a groove on an radially outer surface for receiving the spring seal.

9. The stator mount assembly as recited in claim 7 , wherein the first end comprises a curve intersecting transverse surfaces of the foot.

10. The stator mount assembly as recited in claim 7 , wherein the second end extends transverse to the radially outer surface of the stator vane and overlaps an outer surface of the foot.

11. The stator mount assembly as recited in claim 7 , wherein the spring seal is attached to near the second end and extends toward the U-shaped portion.

12. The stator mount assembly as recited in claim 7 , wherein the wear liner comprises a single sheet of material.

13. A method of mounting a vane within a gas turbine engine comprising:
inserting a vane foot within a U-shaped portion of a wear liner; and
inserting the vane foot and wear liner into a slot formed within a case structure such that a spring seal extending axially toward the U-shaped portion and is biased against an inner surface of the slot responsive to leakage pressure for forming a sealing contact.

14. The method as recited in claim 13 , including sealing a first curved end of the wear liner against abutting transverse surfaces of the vane foot.

15. The method as recited in claim 13 , including inserting the spring seal into a groove formed in an outer surface of the slot.

Assignees

• United Technologies Corp

Inventors

• Rioux Philip Robert

Classifications

• F01D25/246 Primary

  Fastening of diaphragms or stator-rings · CPC title

• Y10T29/49321

  Assembling individual fluid flow interacting members, e.g., blades, vanes, buckets, on rotary support member · CPC title

• F01D9/042

  fixing blades to stators (fixing stator-rings in the casing or to each other F01D25/246) · CPC title