Ducted cowl support for a gas turbine engine

Patent metadata

Field	Value
Publication number	US-10247043-B2
Application number	US-201514966390-A
Country	US
Kind code	B2
Filing date	Dec 11, 2015
Priority date	Dec 31, 2014
Publication date	Apr 2, 2019
Grant date	Apr 2, 2019

Abstract

A ducted cowl support includes an annular structure configured to be mounted to an annular turbine engine frame and including one or more bypass ducts integrally formed therein.

First claim

What is claimed is:

1. A ducted cowl support, comprising an annular structure configured to be mounted to an annular turbine engine frame and including one or more bypass ducts integrally formed therein, the ducted cowl support having a forward end and an aft end and further including a forward flange disposed at the forward end of the ducted cowl support, a peripheral wall extending aft from the forward flange to the aft end of the cowl support, an annular, generally frustoconical aft skirt extending radially outward from the peripheral wall near the aft end of the ducted cowl support and a generally axially-oriented annular aft flange disposed at a distal end of the aft skirt.

2. The ducted cowl support of claim 1 wherein the bypass ducts comprise convex bulges that mate with openings formed in the turbine engine frame to cooperatively define flow passages.

3. The ducted cowl support of claim 2 wherein the forward flange extends around the peripheral wall and the convex bulges.

4. The ducted cowl support of claim 1 including an annular V-groove flange disposed at the aft end of the cowl support, having a V-shaped groove formed therein.

5. The ducted cowl support of claim 4 wherein the V-groove flange is integral with the peripheral wall.

6. The ducted cowl support of claim 4 in combination with an annular fan hub frame and a core cowl having a flange received in the V-shaped groove.

7. The ducted cowl support of claim 1 combined with a fan hub frame so as to define a firewall.

8. The ducted cowl support of claim 1 wherein the annular structure is metallic.

9. The ducted cowl support of claim 1 wherein the annular structure is composite.

10. The ducted cowl support of claim 1 wherein the annular structure is manufactured as a single 360-degree ring.

11. The ducted cowl support of claim 1 wherein the annular structure comprises two or more arcuate segments which are assembled to form a complete annulus.

12. A ducted cowl support, comprising an annular structure configured to be mounted to an annular turbine engine frame and including one or more bypass ducts integrally formed therein, the ducted cowl support having a forward end and an aft end and further including a forward flange disposed at the forward end of the ducted cowl support, a generally cylindrical peripheral wall extending aft from the forward flange to the aft end of the cowl support, an annular, generally frustoconical aft skirt extending radially outward from the peripheral wall near the aft end of the cowl support, and an annular aft flange extending outwardly from a distal end of the aft skirt, and further including an annular V-groove flange connected to the peripheral wall at the aft end of the cowl support, having a V-shaped groove formed therein, wherein the annular structure comprises two or more arcuate segments which are assembled to form a complete annulus.

13. The ducted cowl support of claim 12 wherein the bypass ducts comprise convex bulges that mate with openings formed in the turbine engine frame to cooperatively define flow passages.

14. The ducted cowl support of claim 13 wherein the forward flange extends around the peripheral wall and the convex bulges.

15. The ducted cowl support of claim 12 wherein the V-groove flange is integral with the peripheral wall.

16. The ducted cowl support of claim 12 in combination with an annular fan hub frame and a core cowl having a flange received in the V-shaped groove.

17. The ducted cowl support of claim 12 combined with a fan hub frame so as to define a firewall.

18. The ducted cowl support of claim 12 wherein the annular structure is metallic.

19. The ducted cowl support of claim 12 wherein the annular structure is composite.

Assignees

• Gen Electric

Inventors

• Hasting William Howard
• Dale David Edward
• Wolfe Jared Matthew

Classifications

• F05D2220/32

  in gas turbines · CPC title

• F01D25/28 Primary

  Supporting or mounting arrangements, e.g. for turbine casing · CPC title

• F05D2260/30

  Retaining components in desired mutual position · CPC title

• F02C3/13

  having variable working fluid interconnections between turbines or compressors or stages of different rotors {(controlling flow ratio between different flows of multi-flow jet-propulsion plant, e.g. ducted fan F02K3/075)} · CPC title

• F05D2230/53

  by integrally manufacturing a component, e.g. by milling from a billet or one piece construction · CPC title