Bonded combustor wall for a turbine engine

Patent metadata

Field	Value
Publication number	US-2016238248-A1
Application number	US-201415025012-A
Country	US
Kind code	A1
Filing date	Oct 7, 2014
Priority date	Oct 7, 2013
Publication date	Aug 18, 2016
Grant date	—

Abstract

A combustor wall is provided for a turbine engine. The combustor wall includes a shell, a heat shield and a combustion chamber. The heat shield is connected to the shell by a bonded connection, and defines a portion of the combustion chamber. A cooling cavity is defined between the shell and the heat shield.

First claim

What is claimed is:

1 . A combustor wall for a turbine engine, the combustor wall comprising:
a combustor shell extending axially along a centerline; and a combustor heat shield extending axially along the centerline, the heat shield connected to the shell by a bonded connection; wherein a cooling cavity is defined radially between the shell and the heat shield.

2 . The combustor wall of claim 1 , wherein the bonded connection comprises one of a transient liquid phase bonded connection and a partial transient liquid phase bonded connection.

3 . The combustor wall of claim 1 , wherein the bonded connection comprises a brazed connection.

4 . The combustor wall of claim 1 , wherein the bonded connection comprises a welded connection.

5 . The combustor wall of claim 1 , wherein the bonded connection bonds the heat shield to the shell.

6 . The combustor wall of claim 1 , further comprising an intermediate element connected radially between the heat shield and the shell, wherein one of
the bonded connection bonds the heat shield to the intermediate element; and the bonded connection bonds the intermediate element to the shell.

7 . The combustor wall of claim 6 , wherein one of
the heat shield is bonded to the intermediate element by a second bonded connection where the bonded connection bonds the intermediate element to the shell; and the intermediate element is bonded to the shell by a second bonded connection where the bonded connection bonds heat shield to the intermediate element.

8 . The combustor wall of claim 6 , wherein the intermediate element comprises a strain isolator.

9 . The combustor wall of claim 1 , wherein
the shell is formed from a first material; and the heat shield is formed from a second material that is different than the first material.

10 . The combustor wall of claim 9 , wherein
the first material comprises metallic material; and the second material comprises composite material.

11 . The combustor wall of claim 1 , wherein one or more of
the shell includes one or more cooling apertures that are fluidly coupled with the cooling cavity; and the heat shield includes one or more cooling apertures that are fluidly coupled with the cooling cavity.

12 . The combustor wall of claim 1 , wherein
the heat shield includes a base plate and a protrusion; and the protrusion extends radially out from the base plate, and is connected to the shell by the bonded connection.

13 . The combustor wall of claim 12 , wherein the protrusion comprises a rail.

14 . A combustor section for a turbine engine, comprising:
a combustor including a shell, a heat shield and a combustion chamber; the heat shield connected to the shell by a bonded connection, and defining a portion of the combustion chamber; wherein a cooling cavity is defined between the shell and the heat shield.

15 . The combustor section of claim 14 , wherein the bonded connection comprises one of a transient liquid phase bonded connection and partial transient liquid phase bonded connection.

16 . The combustor section of claim 14 , wherein the bonded connection bonds the heat shield to the shell.

17 . The combustor section of claim 14 , further comprising an intermediate element connected between the heat shield and the shell, wherein one of
the bonded connection bonds heat shield to the intermediate element; and the bonded connection bonds the intermediate element to the shell.

18 . The combustor section of claim 17 , wherein one of
the heat shield is bonded to the intermediate element by a second bonded connection where the bonded connection bonds the intermediate element to the shell; and the intermediate element is bonded to the shell by a second bonded connection where the bonded connection bonds heat shield to the intermediate element.

19 . The combustor section of claim 14 , wherein
the shell is formed from a first material; and the heat shield is formed from a second material that is different than the first material.

20 . The combustor section of claim 14 , further comprising:
a combustor first wall; a combustor second wall formed by the shell and the heat shield; and a combustor bulkhead connected radially between the first wall and the second wall; wherein the first wall, the second wall and the bulkhead define the combustion chamber.

Assignees

• United Technologies Corp

Inventors

• Roberge Gary D
• Cook Iii Grant O

Classifications

• F23R3/005

  Combined with pressure or heat exchangers · CPC title

• F23R3/06

  Arrangement of apertures along the flame tube · CPC title

• F23R3/002 Primary

  Wall structures (F23R3/02 and F23R3/007 take precedence) · CPC title

• F23R2900/03042

  Film cooled combustion chamber walls or domes · CPC title

• F23R2900/00017

  Assembling combustion chamber liners or subparts · CPC title