Integral segmented cmc shroud hanger and retainer system

Patent metadata

Field	Value
Publication number	US-2016003103-A1
Application number	US-201414770411-A
Country	US
Kind code	A1
Filing date	Feb 21, 2014
Priority date	Feb 25, 2013
Publication date	Jan 7, 2016
Grant date	—

Abstract

A shroud hanger with integral retainer assembly comprises a ceramic matrix composite shroud hanger a first wall and a second wall, the hanger having a support wall extending between the first and second walls, the support wall having a shoulder near circumferential ends, a retainer depending from the support wall having a first lower leg and a second lower leg extending in the circumferential direction, a first shroud supported by the first lower leg and a second shroud supported by the second lower leg.

First claim

What is claimed is:

1 . A shroud hanger with integral retainer assembly, the shroud hanger comprising:
a ceramic matrix composite shroud hanger comprising a first wall and a second wall; a support wall extending between said first wall and said second wall, said support wall comprising a shoulder near each of circumferential ends of the shroud hanger; a retainer depending from said support wall having and comprising a first lower leg and a second lower leg, wherein each of the first lower leg and the second lower leg extend towards a corresponding one of said circumferential ends; a first shroud supported by said first lower leg; and a second shroud supported by said second lower leg.

2 . The shroud hanger of claim 1 , wherein ends of said shrouds are offset from said circumferential ends of said shroud hanger.

3 . The shroud hanger with integral retainer assembly of claim 1 , wherein said shroud retainer is substantially T-shaped.

4 . The shroud hanger of claim 1 , wherein one of said first wall and said second wall is a forward wall and the other of said first wall and said second wall is an aft wall.

5 . The shroud hanger with of claim 1 , wherein said retainer further comprises a first depending member.

6 . The shroud hanger of claim 5 , wherein said retainer further comprises a second depending member spaced from said first depending member.

7 . The shroud hanger of claim 1 , wherein said support wall defines a first arm and a second arm extending circumferentially.

8 . The shroud hanger of claim 1 , wherein said first lower leg and said second lower leg have a circumferential length less than a circumferential length of said first arm and said second arm.

9 . The shroud hanger of claim 1 , wherein said legs are disposed into said shrouds at slash faces of said shrouds.

10 . The shroud hanger of claim 1 , wherein said legs comprises pads near ends of said retainer.

11 . The shroud hanger of claim 10 , wherein said pads and said shoulders capture said shrouds.

12 . The shroud hanger of claim 1 , wherein said legs comprises pads supporting said shrouds at first circumferential locations.

13 . The shroud hanger of claim 12 , wherein said shoulders restrain said shroud at a second circumferential location.

14 . The shroud hanger of claim 13 , wherein said shoulders depend downwardly and said pads extend upwardly.

15 . The shroud hanger of claim 1 , wherein said hanger retains said shrouds in a radial direction and a circumferential direction.

Assignees

• Gen Electric

Inventors

• Shapiro Jason David
• Baldiga Jonathan David

Classifications

• F05D2300/6033

  Ceramic matrix composites [CMC] · CPC title

• F01D25/246 Primary

  Fastening of diaphragms or stator-rings · CPC title

• F01D25/005

  Selecting particular materials · CPC title

• Y02T50/60

  Efficient propulsion technologies, e.g. for aircraft · CPC title