Gas turbine engine convergent/divergent exhaust nozzle divergent seal with dovetail interface

Patent metadata

Field	Value
Publication number	US-9689346-B2
Application number	US-201414249774-A
Country	US
Kind code	B2
Filing date	Apr 10, 2014
Priority date	Apr 12, 2013
Publication date	Jun 27, 2017
Grant date	Jun 27, 2017

Abstract

A divergent flap seal includes a flap seal body with a spine, the flap seal body manufactured of a non-metallic material. A mount is engaged with the spine at the dovetail interface and a resilient member at the dovetail interface.

First claim

What is claimed is:

1. A divergent flap seal comprising:
a flap seal body with a spine, said flap seal body manufactured of a non-metallic material;
a mount engaged with said spine at a dovetail interface; and
a resilient member at said dovetail interface.

2. The divergent flap seal as recited in claim 1 , wherein said mount is manufactured of a metallic alloy.

3. The divergent flap seal as recited in claim 1 , wherein said flap seal body is manufactured of a monolithic ceramic material.

4. The divergent flap seal as recited in claim 3 , wherein said monolithic ceramic material is a SN240 monolithic ceramic.

5. The divergent flap seal as recited in claim 1 , wherein said resilient member is a leaf spring.

6. A divergent flap seal comprising:
a flap seal body with a spine, said flap seal body manufactured of a non-metallic material;
a forward mount engaged with said spine at a forward dovetail interface;
a first resilient member at said forward dovetail interface;
an aft mount engaged with said spine at an aft dovetail interface; and
a second resilient member at said aft dovetail interface.

7. The divergent flap seal as recited in claim 6 , wherein said first resilient member and said second resilient member are located between said spine and a tail of said respective forward mount and aft mount.

8. The divergent flap seal as recited in claim 7 , wherein said spine has a male dove tail geometry and said tail of said respective forward mount and aft mount has a female dove tail geometry to radially lock onto the dovetail spine.

9. The divergent flap seal as recited in claim 8 , wherein said spine forms a flared pin in cross-section.

10. The divergent flap seal as recited in claim 9 , wherein said first resilient member and said second resilient member is a leaf spring.

11. The divergent flap seal as recited in claim 6 , further comprising a clamp plate mounted to said forward mount and said aft mount to sandwich said first resilient member and said second resilient member at least partially within said spine.

12. The divergent flap seal as recited in claim 11 , wherein said first resilient member and said second resilient member are at least partially within a forward dovetail socket and an aft dovetail socket in said spine.

13. The divergent flap seal as recited in claim 12 , wherein said first resilient member and said second resilient member is a leaf spring.

Assignees

• United Technologies Corp

Inventors

• Luong Truc
• Martin Keegan M

Classifications

• F02K1/805 Primary

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

• F02K1/1223

  of two series of flaps, the upstream series having its flaps hinged at their upstream ends on a fixed structure and the downstream series having its flaps hinged at their upstream ends on the downstream ends of the flaps of the upstream series · CPC title

• F05D2260/38

  by a spring, i.e. spring loaded or biased towards a certain position · CPC title

• F05D2260/36

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

• F05D2220/32

  in gas turbines · CPC title