Non-linearly deflecting brush seal land

Patent metadata

Field	Value
Publication number	US-2016153301-A1
Application number	US-201615016007-A
Country	US
Kind code	A1
Filing date	Feb 4, 2016
Priority date	Oct 11, 2013
Publication date	Jun 2, 2016
Grant date	—

Abstract

A brush seal land is disclosed. The brush seal land may comprise a first portion configured to be coupled to a turbine disc of an aircraft engine and a second portion having a contact surface. The brush seal land may comprise a concave annular structure. The second portion may deflect through a clearance area in response to contact with a brush. The second portion may not deflect in response to contact with a brush after the second portion has deflected through a clearance area in response to contact with the brush. The contact surface comprises tungsten carbide. The brush seal land may comprise INCONEL. The brush seal land may be configured to be coupled to an annular member extending from the turbine disc. The brush seal land may reduce abrasion to an annular member extending from the turbine disc by a brush.

First claim

What is claimed is:

1 . A brush seal land comprising:
a concave annular structure; a first portion configured to couple to a turbine disc, wherein the concave annular structure is configured to rotate with the turbine disk; and a second portion including a contact surface.

2 . The brush seal land of claim 1 , wherein the second portion deflects through a clearance area, in response to contact with a brush, the brush including bristles.

3 . The brush seal land of claim 1 , wherein the second portion does not deflect in response to contact with a brush after the second portion has deflected through a clearance area in response to contact with the brush.

4 . The brush seal land of claim 1 , wherein the contact surface comprises tungsten carbide.

5 . The brush seal land of claim 1 , wherein the brush seal land comprises an austenitic nickel-chromium alloy.

6 . The brush seal land of claim 1 , wherein the brush seal land is configured to couple to an annular member extending from the turbine disc.

7 . The brush seal land of claim 1 , wherein the brush seal land reduces abrasion to an annular member extending from the turbine disc by a brush.

8 . The brush seal land of claim 1 , wherein a brush seal comprising the brush seal land and a brush separates a high pressure zone from a low pressure zone.

9 . The brush seal land of claim 1 , wherein the first portion is configured to be coupled to the turbine disc using pressure.

10 . A brush seal comprising:
a brush seal land configured to be coupled to an annular member extending from a turbine disc, and a brush configured to make contact with the brush seal land, wherein the brush seal land is configured to rotate radially inward of the brush.

11 . The brush seal of claim 10 , wherein the brush seal land comprises a concave annular structure.

12 . The brush seal of claim 10 , wherein the brush seal land comprises a first portion configured to be coupled to the annular member extending from the turbine disc.

13 . The brush seal of claim 10 , wherein the brush seal land comprises a second portion that deflects through a clearance area in response to contact with the brush.

14 . The brush seal of claim 10 , wherein the brush seal land comprises a second portion that does not deflect in response to contact with a brush after the second portion has deflected through a clearance area in response to contact with the brush.

15 . The brush seal of claim 10 , wherein the brush deflects in response to contact with the brush seal land.

16 . The brush seal of claim 10 , wherein the brush seal land comprises an austenitic nickel-chromium alloy.

17 . The brush seal of claim 10 , wherein the brush seal land comprises a contact surface configured to contact with the brush.

18 . The brush seal of claim 17 , wherein the contact surface comprises tungsten carbide. 19 . The brush seal of claim 10 , brush seal land and the brush separate a high pressure zone from a low pressure zone.

20 . The brush seal of claim 10 , wherein the brush seal land comprises a first portion that is coupled to the turbine disc by a pressure.

Assignees

• United Technologies Corp

Inventors

• Duong Loc Quang
• Hu Xiaolan

Classifications

• F16J15/3288 Primary

  Filamentary structures, e.g. brush seals · CPC title

• F05D2220/32

  in gas turbines · CPC title

• F01D11/00 Primary

  Preventing or minimising internal leakage of working-fluid, e.g. between stages (sealings in general F16J {; sealing arrangements for transition ducts of combustor cans F01D9/023}) · CPC title

• F05D2240/56

  Brush seals · CPC title

• Y02T50/60

  Efficient propulsion technologies, e.g. for aircraft · CPC title