Bonded combustor wall for a turbine engine

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.

What is claimed is: 
     
         1 . An assembly for a turbine engine, comprising:
 a shell formed from a first material comprising a nickel alloy; and   a heat shield connected to the shell by a bonded connection, the heat shield formed from a second material that is different than the first material, and the second material comprising composite material;   wherein a cavity is defined radially between the shell and the heat shield.   
     
     
         2 . The assembly of  claim 1 , wherein the bonded connection comprises a partial transient liquid phase bonded connection. 
     
     
         3 . The assembly of  claim 1 , wherein the bonded connection comprises a transient liquid phase bonded connection. 
     
     
         4 . The assembly of  claim 1 , further comprising:
 a combustor wall for the turbine engine;   the combustor wall comprising the shell and the heat shield.   
     
     
         5 . The assembly of  claim 1 , wherein the bonded connection directly bonds the heat shield to the shell. 
     
     
         6 . The assembly of  claim 1 , further comprising:
 an intermediate element connected radially between the heat shield and the shell;   the bonded connection bonding the heat shield to the intermediate element.   
     
     
         7 . The assembly of  claim 6 , wherein the intermediate element is bonded to the shell by a second bonded connection. 
     
     
         8 . The assembly of  claim 6 , wherein the intermediate element comprises a strain isolator. 
     
     
         9 . The assembly of  claim 1 , further comprising:
 an intermediate element connected radially between the heat shield and the shell;   the bonded connection bonding the intermediate element to the shell.   
     
     
         10 . The assembly of  claim 9 , wherein the heat shield is bonded to the intermediate element by a second bonded connection. 
     
     
         11 . The assembly of  claim 9 , wherein the intermediate element comprises a strain isolator. 
     
     
         12 . The assembly of  claim 1 , wherein
 the shell includes one or more first cooling apertures that are fluidly coupled with the cavity; and   the heat shield includes one or more second cooling apertures that are fluidly coupled with the cavity.   
     
     
         13 . The assembly 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.   
     
     
         14 . The assembly of  claim 13 , wherein the protrusion comprises a rail. 
     
     
         15 . An assembly for a turbine engine, comprising:
 a shell formed from a first material comprising a nickel alloy; and   a heat shield connected to the shell by a bonded connection that comprises a partial transient liquid phase bonded connection, the heat shield formed from a second material that is different than the first material, and the second material comprising composite material;   wherein a cavity is defined radially between the shell and the heat shield.   
     
     
         16 . The assembly of  claim 15 , further comprising:
 a combustor wall for the turbine engine;   the combustor wall comprising the shell and the heat shield.   
     
     
         17 . The assembly of  claim 15 , wherein the bonded connection directly bonds the heat shield to the shell. 
     
     
         18 . The assembly of  claim 15 , further comprising:
 an intermediate element connected radially between the heat shield and the shell;   the bonded connection bonding the heat shield or the shell to the intermediate element.   
     
     
         19 . An assembly for a turbine engine, comprising:
 a first turbine engine component formed from a first material comprising a nickel alloy; and   a second turbine engine component connected to the first turbine engine component by a bonded connection, the second turbine engine component formed from a second material that is different than the first material, and the second material comprising composite material.   
     
     
         20 . The assembly of  claim 19 , wherein the first turbine engine component is configured as a shell, and the second turbine engine component is configured as a heat shield lining the shell.