External flap retaining mechanism

Patent metadata

Field	Value
Publication number	US-8931281-B2
Application number	US-79481610-A
Country	US
Kind code	B2
Filing date	Jun 7, 2010
Priority date	Jun 7, 2010
Publication date	Jan 13, 2015
Grant date	Jan 13, 2015

Abstract

An external flap connection assembly for a turbine engine nozzle has a track frame, a slider track, and an external flap. The external flap is removably connected to the slider track via a retaining member which has a slider block.

First claim

What is claimed is:

1. An external flap connection assembly for a turbine engine nozzle comprising;
a slider track; and
an external flap having a retaining member including a protruding slider block, wherein said slider block comprises a rotational bearing having a circumferential channel and a slider portion protruding axially away from said rotational bearing and toward said slider track, wherein said slider block is received in said slider track, wherein said external flap is external to an engine such that at least one surface of said external flap is exposed to an ambient atmosphere surrounding said engine; and
wherein said retaining member comprises a retainer slot, a cavity, and a plurality of retaining member fastener holes, wherein the slider block is received in said cavity, a retainer piece, having a plurality of retainer piece fastener holes, is received in said retainer slot, and a plurality of fasteners are received in said retaining member and retainer piece fastener holes.

2. The external flap connection assembly of claim 1 , wherein said slider track comprises an open first end such that said slider block may be removed from said slider track.

3. The external flap connection assembly of claim 2 , wherein said open end is blocked by a sliding locking assembly, said sliding locking assembly comprising a barrier portion and a fastener portion locking said barrier portion to said slider track.

4. The external flap connection assembly of claim 1 , wherein said retainer piece holds said slider block in place.

5. A retaining mechanism for connecting an external flap to an engine nozzle comprising:
a support arm of the external flap having a retaining member, said retaining member comprising a retainer slot, a cavity, and a plurality of retaining member fastener holes;
a retainer piece received in said retainer slot, the retainer piece having a plurality of retainer piece fastener holes;
a slider block having a first end received in said cavity, and held therein by said retainer piece, wherein the first end comprises a rotational bearing and the rotational bearing is interfaced with said cavity;
wherein said external flap is external to an engine such that at least one surface of said external flap is exposed to an ambient atmosphere surrounding said engine; and
a plurality of fasteners are received in said retaining member and retainer piece fastener holes.

6. The retaining mechanism of claim 5 , wherein said retainer piece comprises a slider block slot corresponding to said cavity.

7. The retaining mechanism of claim 5 , wherein a second end of the slider block comprises a slider portion.

8. The retaining mechanism of claim 7 , wherein said rotational bearing comprises a cylindrical portion and a circumferential retainer channel.

9. The retaining mechanism of claim 8 , wherein said retainer piece is partially received in said circumferential retainer channel thereby holding said slider block in place.

10. The retaining mechanism of claim 5 , further comprising the plurality of fasteners protruding through said retaining member and said retaining piece, thereby fixing said retainer piece in said retainer slot, each fastener having a head surface flush with an inside surface of a connecting end.

11. An external flap for a turbine engine nozzle comprising:
at least one support arm of the external flap having a retaining mechanism for connecting said external flap to a turbine engine body,
said retaining mechanism having a retainer slot, a cavity, and a plurality of retaining member fastener holes;
a slider block comprising a cylindrical bearing component and a slider component extending axially from said cylindrical bearing component, said cylindrical bearing component being at least partially received in said cavity;
a retainer piece received in said retainer slot for engaging and retaining said slider block, wherein the retainer piece includes a plurality of retainer piece fastener holes;
wherein said external flap is external to an engine such that at least one surface of said external flap is exposed to an ambient atmosphere surrounding said engine; and
wherein a plurality of fasteners are received in said retaining member and retainer piece fastener holes.

12. The external flap of claim 11 , wherein said cylindrical component comprises a circumferential channel receiving at least a portion of said retainer piece.

13. The external flap of claim 11 , wherein said retaining mechanism fastener holes comprises a plurality of first fastener holes, and said retainer piece fastener holes comprises a plurality of second fastener holes corresponding to said plurality of first fastener holes.

14. The external flap of claim 13 , wherein the plurality of fasteners is configured such that each fastener is received in one of said first plurality of fastener holes and one of said second plurality of said fastener holes.

15. The external flap of claim 14 , wherein each of said fasteners comprises a head surface, which is flush with a retaining mechanism surface.

16. The external flap of claim 11 , further comprising a first and a second support arm, each of said support arms having a retaining mechanism for connecting said external flap to a turbine engine body.

17. The external flap of claim 16 , wherein each of said first and said second support arms have a retaining mechanism with facing interior surfaces.

18. The external flap connection assembly for a turbine engine nozzle of claim 1 , wherein said slider track is a slider track on a downstream end of an engine nozzle cowling.

19. The external flap connection assembly for a turbine engine nozzle of claim 1 , wherein said slider block is axially rotatable relative to said retaining member.

20. The external flap connection assembly for a turbine engine nozzle of claim 19 , wherein said circumferential channel is stationary relative to said retaining member.

Assignees

• Ruberte Sanchez Jose E
• Schuppert David C
• United Technologies Corp

Inventors

• Ruberte Sanchez Jose E
• Schuppert David C

Classifications

• F05D2250/40

  Movement of components · CPC title

• F05D2260/50

  Kinematic linkage, i.e. transmission of position · CPC title

• F02K1/12 Primary

  by means of pivoted flaps · CPC title

• F05D2260/30

  Retaining components in desired mutual position · CPC title

• F16B2200/71

  Blocking disengagement of catches or keys · CPC title