Brush seal

Patent metadata

Field	Value
Publication number	US-10443735-B2
Application number	US-201615542359-A
Country	US
Kind code	B2
Filing date	Jan 26, 2016
Priority date	Jan 29, 2015
Publication date	Oct 15, 2019
Grant date	Oct 15, 2019

Abstract

A brush seal having an annular shape, includes: a low-pressure-side plate including a low-pressure-side recessed portion radially recessed and circumferentially extending; a high-pressure-side plate including a high-pressure-side recessed portion positioned to face the low-pressure-side recessed portion, the high-pressure-side recessed portion being radially recessed and circumferentially extending; a brush body including a plurality of wire rods and supported between the low-pressure-side plate and the high-pressure-side plate; and a fixing member inserted into a space formed by the low-pressure-side recessed portion and the high-pressure-side recessed portion.

First claim

The invention claimed is:

1. A brush seal having an annular shape, comprising:
a low-pressure-side plate including a low-pressure-side recessed portion radially recessed and circumferentially extending;
a high-pressure-side plate including a high-pressure-side recessed portion positioned to face the low-pressure-side recessed portion, the high-pressure-side recessed portion being radially recessed and circumferentially extending;
a brush body including a plurality of wire rods, the brush body being supported between the low-pressure-side plate and the high-pressure-side plate; and
a fixing member inserted into a space formed by the low-pressure-side recessed portion and the high-pressure-side recessed portion in a circumferential direction.

2. The brush seal according to claim 1 , comprising a segmented-type brush seal which is circumferentially segmented, wherein the low-pressure-side recessed portion and the high-pressure-side recessed portion respectively have bottoms.

3. The brush seal according to claim 2 , wherein a plurality of the fixing members are inserted into the space formed by the low-pressure-side recessed portion and the high-pressure-side recessed portion.

4. The brush seal according to claim 3 , wherein the fixing member has a linear expansion coefficient greater than those of the low-pressure-side plate and the high-pressure-side plate.

5. The brush seal according to claim 2 , wherein a radially outward side of the plurality of wire rods is covered by the high-pressure-side plate and the low-pressure-side plate.

6. The brush seal according to claim 5 , wherein the fixing member has a linear expansion coefficient greater than those of the low-pressure-side plate and the high-pressure-side plate.

7. The brush seal according to claim 2 , wherein the fixing member has a linear expansion coefficient greater than those of the low-pressure-side plate and the high-pressure-side plate.

8. The brush seal according to claim 7 , wherein the fixing member has a linear expansion coefficient greater than those of the low-pressure-side plate and the high-pressure-side plate.

9. The brush seal according to claim 1 , wherein a plurality of the fixing members are inserted into the space formed by the low-pressure-side recessed portion and the high-pressure-side recessed portion.

10. The brush seal according to claim 9 , wherein a radially outward side of the plurality of wire rods is covered by the high-pressure-side plate and the low-pressure-side plate.

11. The brush seal according to claim 10 , wherein the fixing member has a linear expansion coefficient greater than those of the low-pressure-side plate and the high-pressure-side plate.

12. The brush seal according to claim 9 , wherein the fixing member has a linear expansion coefficient greater than those of the low-pressure-side plate and the high-pressure-side plate.

13. The brush seal according to claim 12 , wherein the fixing member has a linear expansion coefficient greater than those of the low-pressure-side plate and the high-pressure-side plate.

14. The brush seal according to claim 1 , wherein a radially outward side of the plurality of wire rods is covered by the high-pressure-side plate and the low-pressure-side plate.

15. The brush seal according to claim 14 , wherein the fixing member has a linear expansion coefficient greater than those of the low-pressure-side plate and the high-pressure-side plate.

16. The brush seal according to claim 15 , wherein the fixing member has a linear expansion coefficient greater than those of the low-pressure-side plate and the high-pressure-side plate.

17. The brush seal according to claim 1 , wherein the fixing member has a linear expansion coefficient greater than those of the low-pressure-side plate and the high-pressure-side plate.

Assignees

• Eagle Ind Co Ltd

Inventors

• Kono Toru

Classifications

• F02C7/28

  Arrangement of seals · CPC title

• F05D2240/56

  Brush seals · CPC title

• F01D25/00

  Component parts, details, or accessories, not provided for in, or of interest apart from, other groups · CPC title

• F16J15/22 Primary

  shaped as strands, ropes, threads, ribbons, or the like · 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