Flexible seal system for a gas turbine engine

Patent metadata

Field	Value
Publication number	US-9284889-B2
Application number	US-201113297458-A
Country	US
Kind code	B2
Filing date	Nov 16, 2011
Priority date	Nov 16, 2011
Publication date	Mar 15, 2016
Grant date	Mar 15, 2016

Abstract

A flexible seal system for a gas turbine engine includes an annular mounting bracket, an annular support bracket, an annular flexible seal and a plurality of mounting spacers. The flexible seal extends axially between a first mounting segment and a second mounting segment. The first mounting segment is connected axially between the mounting bracket and the support bracket, and includes a plurality of mounting apertures that extend axially through the first mounting segment. Each of the mounting spacers is arranged within a respective one of the mounting apertures, and extends axially between the mounting bracket and the support bracket.

First claim

What is claimed is:

1. A flexible seal system for a gas turbine engine, comprising:
an annular mounting bracket;
an annular support bracket;
an annular flexible seal extending axially between a first mounting segment and a second mounting segment, wherein the first mounting segment is connected axially between the mounting bracket and the support bracket, and comprises a plurality of mounting apertures that extend axially through the first mounting segment; and
a plurality of mounting spacers, each arranged within a respective one of the mounting apertures, and extending axially between the mounting bracket and the support bracket;
wherein the flexible seal is constructed from an elastomer composite that comprises a plurality of fibers, and wherein a quantity of the fibers are laid oblique to an axially extending contour line of the flexible seal.

2. The system of claim 1 , wherein the first mounting segment is compressed between the mounting bracket and the support bracket.

3. The system of claim 1 , wherein the flexible seal comprises an arcuate seal segment connected between the first mounting segment and the second mounting segment, and wherein the first mounting segment extends radially from an end of the flexible seal to the seal segment.

4. The system of claim 3 , wherein the seal segment comprises a first region and a second region, and wherein the first region comprises a thickness that tapers as the first region extends from the first mounting segment to the second region.

5. The system of claim 1 , wherein the flexible seal comprises a plurality of arcuate seal segments connected between the first mounting segment and the second mounting segment, wherein a first of the plurality of the seal segments extends from the first mounting segment, and wherein a second of the plurality of the seal segments extends from the second mounting segment.

6. The system of claim 5 , wherein the first of the plurality of the seal segments extends radially outwards from the first mounting segment, wherein the second of the plurality of the seal segments extends radially outwards from the second mounting segment, and wherein a third of the plurality of the seal segments is connected between and extends radially inwards from the first of the plurality of the seal segments and the second of the plurality of the seal segments.

7. The system of claim 6 , further comprising a reinforcement ring that circumferentially wraps around the third of the plurality of the seal segments.

8. The system of claim 1 , wherein the mounting bracket comprises an arcuate flange segment that extends radially outwardly from a seal contact flange segment, and wherein the seal contact flange segment contacts the first mounting segment.

9. The system of claim 1 , wherein the first mounting segment is connected between the mounting bracket and the support bracket by a plurality of fasteners, and wherein one of the fasteners extends axially through the mounting bracket, a respective one of the mounting spacers and the support bracket.

10. The system of claim 1 , wherein a portion of the flexible seal that includes a first of the mounting apertures has an axial thickness, wherein a first of the mounting spacers is disposed within the first of the mounting apertures, and wherein the first of the mounting spacers has an axial length that is less than the axial thickness where the flexible seal is uncompressed.

11. The system of claim 10 , wherein the axial length is equal to the axial thickness where the flexible seal is connected between the mounting bracket and the support bracket.

Assignees

• Damgaard Jocelyn C
• Roberts Steven D
• Dale Timothy
• United Technologies Corp

Inventors

• Damgaard Jocelyn C
• Roberts Steven D
• Dale Timothy

Classifications

• F02C7/28 Primary

  Arrangement of seals · CPC title

• F02K1/805

  Sealing devices therefor, e.g. for movable parts of jet pipes or nozzle flaps · CPC title

• F05D2250/611

  undulated · CPC title