Augmentor fuel conduit bushing

• US 20070006589A1
• Filed: 06/30/2005
• Published: 01/11/2007
• Est. Priority Date: 06/30/2005
• Status: Active Grant

• Current Assignee: Rtx Corporation
• Original Assignee: United Technologies Corporation (Raytheon Technologies Corporation d/b/a RTX)
• Inventors: Harris, Meggan, Sherwood, Tor, Brooks, Robert, Muldoon, Marc
• Granted Patent: US 7,506,514 B2
• Time in Patent Office: Days
• US Class Current: 60/761
• CPC Class Codes: F23R 3/20 incorporating fuel injection means
• CPC Class Codes: F23R 3/28 characterised by the fuel supply burners F23D
• CPC Class Codes: F23R 3/60 Support structures; Attaching or mounting means

Abstract

A gas turbine engine augmentor has a centerbody within a gas flowpath from upstream to downstream. A plurality of vanes are positioned in the gas flowpath outboard of the centerbody. An aumentor fuel conduit extends through a first of the vanes to deliver fuel to the centerbody. An electrographitic carbon bushing guides and supports the augmentor fuel conduit.

Claims

1. A turbine engine augmentor comprising:

a centerbody within a gas flowpath from upstream to downstream;

a plurality of vanes positioned in the gas flowpath outboard of the centerbody;

an aumentor fuel conduit extending through a first of the vanes to deliver fuel to the centerbody; and

an electrographitic carbon bushing guiding the augmentor fuel conduit.

2. The turbine engine augmentor of claim 1 wherein the augmentor fuel conduit delivers the fuel to a burner within the centerbody.

3. The turbine engine augmentor of claim 1 wherein the augmentor fuel conduit delivers the fuel to a spray bar manifold within the centerbody.

4. The turbine engine augmentor of claim 1 wherein the bushing is a split bushing.

5. The turbine engine augmentor of claim 1 wherein the bushing is a longitudinally split bushing.

6. The turbine engine augmentor of claim 1 wherein the bushing has first and second end flanges.

7. Use of an electrographitic carbon material to support a turbine engine augmentor fuel conduit relative to a static structure.

8. The use of claim 7 wherein the electrographitic carbon material is in longitudinally sliding engagement with the fuel conduit.

9. The use of claim 7 wherein the electrographitic carbon material is in longitudinally and rotationally sliding engagement with the fuel conduit.

10. The use of claim 7 wherein the electrographitic carbon material is formed as a longitudinally split bushing.

11. A method for modifying a turbine engine augmentor having a vane and a centerbody or modifying a configuration of said augmentor, the method comprising:

adding a new bushing comprising electro-graphitic carbon to support a fuel line of said augmentor.

12. The method of claim 11 wherein the new bushing is added in place of an old bushing, the old bushing not comprising electro-graphitic carbon.

13. The method of claim 11 wherein the new bushing is added in place of a fixed mounting.

14. The method of claim 11 wherein the new bushing is added in place of a metal-to-metal sliding fit mounting.