Curvic Seal for Gas Turbine Engine

Abstract

A curvic seal for a gas turbine engine includes a cylindrical seal with a retention feature.

1 - 10 . (canceled) 
     
     
         11 . A curvic seal for a curvic coupling that transfers torque between a first component and a second component along an engine central longitudinal axis of a gas turbine engine comprising:
 a cylindrical seal with a retention feature shaped to interface with a rim that extends from a surface of a cylindrical component such that the cylindrical seal is axially locked to the first component to facilitate blind module assembly of the first component and the second component.   
     
     
         12 . The curvic seal as recited in  claim 11 , wherein the retention feature is U-shaped. 
     
     
         13 . The curvic seal as recited in  claim 11 , wherein the cylindrical seal is a split-ring sheet metal seal. 
     
     
         14 . The curvic seal as recited in  claim 11 , further comprising a rolled flange on an aft edge section of the cylindrical seal to facilitate the blind module assembly. 
     
     
         15 . A curvic seal located along an engine central longitudinal axis for a curvic coupling that transfers torque between a first component and a second component of a gas turbine engine, comprising:
 a cylindrical seal with a retention feature shaped to interface with a rim that extends from a surface of a cylindrical component such that the cylindrical seal is axially locked to the first component to facilitate blind module assembly of the first component and the second component.   
     
     
         16 . The curvic seal as recited in  claim 15 , wherein the retention feature is U-shaped. 
     
     
         17 . The curvic seal as recited in  claim 15 , wherein the cylindrical seal is a split-ring sheet metal seal. 
     
     
         18 . The curvic seal as recited in  claim 15 , further comprising a rolled flange on an aft edge section of the cylindrical seal to facilitate the blind module assembly. 
     
     
         19 . A curvic seal located along an engine central longitudinal axis to facilitate blind module assembly of a first component and a second component of a gas turbine engine, comprising:
 a cylindrical seal with a retention feature and a rolled flange on an aft edge section of the cylindrical seal to facilitate the blind module assembly.   
     
     
         20 . The curvic seal as recited in  claim 19 , wherein the retention feature interfaces with a rim that extends from a surface of a cylindrical component. 
     
     
         21 . The curvic seal as recited in  claim 19 , wherein the cylindrical seal is a split-ring sheet metal seal. 
     
     
         22 . A method for blind module assembling a gas turbine engine curvic joint along an engine central longitudinal axis, comprising:
 attaching a retention feature of a cylindrical seal to a rim that extends from a surface of a cylindrical component such that the cylindrical seal is axially locked to a first component; and   blind module assembling the first component to a second component along the engine central longitudinal axis to seal a curvic coupling that transfers torque between the first component and the second component.   
     
     
         23 . The method as recited in  claim 22 , wherein the retention feature is U-shaped.