Turbine shroud mounting apparatus with anti-rotation feature

Abstract

A turbine shroud mounting apparatus includes: (a) a shroud hanger having an arcuate body and including an arcuate first hook which protrudes radially inward and extends axially forward from the body, so as to define a first slot in cooperation with the body; (b) an anti-rotation element disposed within the first slot, the anti-rotation element being integrally formed with the shroud hanger; and (c) an arcuate shroud segment including an arcuate first mounting flange which protrudes radially outward and extends axially aft, the first mounting flange having a receptacle formed therein, where the first mounting flange is received in the first slot and the anti-rotation member is received in the receptacle.

1 . A turbine shroud mounting apparatus, comprising:
 (a) a shroud hanger having an arcuate body and including an arcuate first hook which protrudes radially inward and extends axially forward from the body, so as to define a first slot in cooperation with the body;   (b) an anti-rotation element disposed within the first slot, the anti-rotation element being integrally formed with the shroud hanger; and   (c) an arcuate shroud segment including an arcuate first mounting flange which protrudes radially outward and extends axially aft, the first mounting flange having a receptacle formed therein, where the first mounting flange is received in the first slot and the anti-rotation member is received in the receptacle.   
     
     
         2 . The apparatus of  claim 1  wherein the anti-rotation element spans the entire distance between the body and the first hook. 
     
     
         3 . The apparatus of  claim 1  wherein the first hook is disposed at an aft end of the shroud segment. 
     
     
         4 . The apparatus of  claim 3  further including a second hook disposed at a forward end of the shroud hanger, the second hook protruding radially inward and extending axially forward from the body, so as to define a second slot in cooperation with the body. 
     
     
         5 . The apparatus of  claim 1  wherein the anti-rotation element is an axially-elongated tab with a radiused forward end. 
     
     
         6 . The apparatus of  claim 1  wherein the receptacle is an axially-elongated notch having parallel sidewalls and a radiused forward end. 
     
     
         7 . A turbine shroud apparatus for a gas turbine engine, comprising:
 (a) a shroud hanger mounted to a casing of the engine, the shroud hanger having an arcuate body and including an arcuate aft hook which protrudes radially inward and extends axially forward from the body, so as to define a first slot in cooperation with the body;   (b) an anti-rotation element disposed within the first slot, the anti-rotation element being integrally formed with the shroud hanger; and   (c) an arcuate shroud segment including an arcuate first mounting flange which protrudes radially outward and extends axially aft, the first mounting flange having a receptacle formed therein, where the first mounting flange is received in the first slot and the anti-rotation member is received in the receptacle.   
     
     
         8 . The apparatus of  claim 1  wherein the anti-rotation element spans the entire distance between the body and the first hook. 
     
     
         9 . The apparatus of  claim 7  wherein the first hook is disposed at an aft end of the shroud segment. 
     
     
         10 . The apparatus of  claim 9  further including a second hook disposed at a forward end of the shroud hanger, the second hook protruding radially inward and extending axially forward from the body, so as to define a second slot in cooperation with the body. 
     
     
         11 . The apparatus of  claim 7  wherein the anti-rotation element is an axially-elongated tab with a radiused forward end. 
     
     
         12 . The apparatus of  claim 7  wherein the receptacle is an axially-elongated notch having parallel sidewalls and a radiused forward end. 
     
     
         13 . A static element assembly for a gas turbine engine, comprising:
 (a) a first static element having an arcuate body and including an arcuate hook which protrudes radially inward and extends axially forward from the body, so as to define a slot in cooperation with the body;   (b) an anti-rotation element disposed within the slot, the anti-rotation element being integrally formed with the first static element; and   (c) an arcuate second static element including an arcuate mounting flange which protrudes radially outward and extends axially aft, the mounting flange having a receptacle formed therein, where the mounting flange is received in the slot and the anti-rotation member is received in the receptacle.   
     
     
         14 . The assembly of  claim 13  wherein the anti-rotation element spans the entire distance between the body and the hook. 
     
     
         15 . The assembly of  claim 13  wherein the hook is disposed at an aft end of the first static element. 
     
     
         16 . The assembly of  claim 13  wherein the anti-rotation element is an axially-elongated tab with a radiused forward end. 
     
     
         17 . The assembly of  claim 13  wherein the receptacle is an axially-elongated notch having parallel sidewalls and a radiused forward end.