Augmentor spray bars

• US 7,647,775 B2
• Filed: 06/30/2005
• Issued: 01/19/2010
• Est. Priority Date: 06/30/2005
• Status: Expired due to Fees

• Current Assignee: Raytheon Technologies Corporation d/b/a RTX
• Original Assignee: United Technologies Corporation (Raytheon Technologies Corporation d/b/a RTX)
• Inventors: Sherwood, Tor W., Harris, Meggan H., Brooks, Robert T., Muldoon, Marc J.
• Primary Examiner(s): Cuff; Michael
• Assistant Examiner(s): SUNG, GERALD LUTHER
• Application Number:
  US11/174,278
• Publication Number:
  US 20070006590A1
• Time in Patent Office: 1,664 Days
• Field of Search: 607/61, 607/63, 607/65, 607/62, 607/64, 607/66
• US Class Current: 60/761
• CPC Class Codes: F23D 2211/00 Thermal dilatation prevention or compensation
• CPC Class Codes: F23R 3/20 incorporating fuel injection means

Abstract

A gas turbine engine fueling system includes a number of spray bars having conduits extending through associated vanes. A number of fuel injector nozzles are along each conduit. Each of the nozzles are positioned to discharge an associated fuel stream from one of the sides of the associated vane. A number of wear members are each mounted relative to the associated one of the nozzles for a range of motion relative thereto. The wear members movably cooperate with the associated vane to accommodate operating deflection and/or tolerances of the spray bars and vanes.

Claims

1. A turbine engine augmentor comprising:

a centerbody within a gas flowpath from upstream to downstream and having a downstream tailcone; and

a plurality of vanes positioned in the gas flowpath outboard of the centerbody and having first and second sides;

an augmentor fueling system comprising;

a plurality of spray bars, each spray bar at least partially within an associated at least one of said vanes, comprising;

a conduit; and

a plurality of nozzles coupled to the conduit, each nozzle positioned to discharge an associated fuel stream from one of the sides of the associated vane; and

a plurality of blocks, each block mounted within the associated vane relative to an associated one of the nozzles for a range of motion relative thereto between an inward extreme and an outward extreme and movably cooperating with the associated vane, wherein there are nozzles along each of the first side and second side of each of the vanes and each said vane contains a plurality of said blocks, each said block mounted to the associated said nozzle.

2. The augmentor of claim 1 wherein the augmentor is a non-remote augmentor.

3. The augmentor of claim 1 wherein the augmentor fueling system comprises:

a manifold within the centerbody feeding the plurality of spray bars.

4. The augmentor of claim 1 wherein each of said plurality of vanes comprises:

a main body; and

a trailing edge box structure.

5. The augmentor of claim 1 wherein the blocks each comprise an electro-graphitic carbon body.

6. The augmentor of claim 1 wherein the blocks each comprise a material softer than an adjacent material of the associated nozzle and an adjacent material of the associated vane body.

7. The augmentor of claim 1 wherein the plurality of nozzles include paired nozzles along opposite sides of each of the vanes.

8. The augmentor of claim 1 wherein the plurality of nozzles include paired nozzles along opposite sides of every augmentor vane.

9. The augmentor of claim 1 wherein each of the plurality of blocks are removable from the associated nozzle nondestructively of said nozzle.

10. The augmentor of claim 1 wherein each of the plurality of blocks are secured to the associated nozzle by a retainer interfitting with said block and said nozzle.

11. The augmentor of claim 10 wherein each of the plurality of blocks is moveable between the inward extreme wherein the associated retainer contacts a boss of the associated spray bar and the outward extreme wherein the associated retainer contacts an underside of a head portion of the associated nozzle, the boss and nozzle being brazed or welded to each other.

12. The augmentor of claim 1 wherein each of the plurality of blocks are secured to the associated nozzle by a bent wire retainer interfitting with said block and said nozzle.

13. The augmentor of claim 1 wherein each of the plurality of blocks is biased by a spring.

14. A turbine engine augmentor comprising:

a centerbody within a gas flowpath from upstream to downstream and having a downstream tailcone; and

a plurality of vanes positioned in the gas flowpath outboard of the centerbody and having first and second sides;

an augmentor fueling system comprising;

a plurality of spray bars, each spray bar at least partially within an associated at least one of said vanes, comprising;

a conduit; and

a plurality of nozzles coupled to the conduit, each nozzle positioned to discharge an associated fuel stream from one of the sides of the associated vane; and

means within the vanes movably intervening between both the spray bars and the vanes for accommodating operating deflection of at least one of the spray bars and vanes wherein the means are associated with the nozzles.

15. A turbine engine augmentor comprising:

a centerbody within a gas flowpath from upstream to downstream and having a downstream tailcone; and

a plurality of vanes positioned in the gas flowpath outboard of the centerbody and having first and second sides;

an augmentor fueling system comprising;

a plurality of spray bars, each spray bar at least partially within an associated at least one of said vanes, comprising;

a conduit; and

a plurality of nozzles coupled to the conduit, each nozzle positioned to discharge an associated fuel stream from one of the sides of the associated vane; and

a plurality of blocks, each block mounted within the associated vane relative to an associated one of the nozzles and movably cooperating with the associated vane, and comprising electro-graphitic carbon.

16. The augmentor of claim 15 wherein each of the plurality of blocks are removable from the associated nozzle nondestructively of said nozzle.

17. A turbine engine augmentor comprising:

a centerbody within a gas flowpath from upstream to downstream and having a downstream tailcone; and

a plurality of vanes positioned in the gas flowpath outboard of the centerbody and having first and second sides;

an augmentor fueling system comprising;

a plurality of spray bars, each spray bar at least partially within an associated at least one of said vanes, comprising;

a conduit; and

a plurality of nozzles coupled to the conduit, each nozzle positioned to discharge an associated fuel stream from one of the sides of the associated vane; and

a plurality of blocks, each block mounted within the associated vane relative to an associated one of the nozzles and removable from the associated nozzle nondestructively of said nozzle movably cooperating with the associated vane, and comprising a material that preferentially wears relative to an adjacent material of the associated vane, each of the plurality of blocks are secured to the associated nozzle by a retainer interfitting with said block and said nozzle.

18. The turbine engine augmentor of claim 17 wherein each said block is retained by a bent wire retainer.

19. The turbine engine augmentor of claim 17 wherein each block comprises:

an aperture for receiving the associated nozzle; and

first and second holes transverse to and intersecting the aperture for respectively first and second legs of said retainer.

20. The turbine engine augmentor of claim 19 comprising an electro-graphitic carbon body.

21. The turbine engine augmentor of claim 19 wherein the first and second holes extend through the aperture.

22. The turbine engine augmentor of claim 19 having first and second lateral wear surfaces generally parallel to each other and off-parallel to a central longitudinal axis of the aperture.