US2013333350A1PendingUtilityA1

Airfoil including adhesively bonded shroud

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Assignee: STILIN NICHOLAS DPriority: Jun 19, 2012Filed: Jun 19, 2012Published: Dec 19, 2013
Est. expiryJun 19, 2032(~5.9 yrs left)· nominal 20-yr term from priority
F05D 2300/43F01D 9/044F01D 11/005F05D 2220/36F01D 9/02Y10T156/10F05D 2230/23
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Claims

Abstract

An airfoil includes an airfoil body that extends between a leading edge and a trailing edge, a suction side and a pressure side, and a first end and a second end. At least one fitting is located on at least one of the first end and the second end. The fitting includes at least one mounting lug. At least one shroud is adhesively bonded to the at least one fitting.

Claims

exact text as granted — not AI-modified
What is claimed is: 
     
         1 . An airfoil comprising:
 an airfoil body extending between a leading edge and a trailing edge, a suction side and a pressure side, and a first end and a second end;   at least one fitting located on at least one of the first end and the second end, the at least one fitting including at least one mounting lug; and   at least one shroud adhesively bonded to the at least one fitting.   
     
     
         2 . The airfoil as recited in  claim 1 , wherein the at least one fitting includes a flange, and the at least one shroud is adhesively bonded to the flange. 
     
     
         3 . The airfoil as recited in  claim 2 , wherein the flange includes a rabbet, and the at least one shroud is adhesively bonded to the rabbet. 
     
     
         4 . The airfoil as recited in  claim 1 , wherein the at least one shroud comprises a polymeric material. 
     
     
         5 . The airfoil as recited in  claim 1 , wherein the at least one fitting is metallic and the at least one shroud is polymeric. 
     
     
         6 . The airfoil as recited in  claim 1 , further comprising a seal member attached at an edge of the at least one shroud. 
     
     
         7 . The airfoil as recited in  claim 6 , wherein the edge of the at least one shroud includes a slot, and the seal member is located in the slot. 
     
     
         8 . The airfoil as recited in  claim 6 , wherein the seal member is adhesively bonded to the edge of the at least one shroud. 
     
     
         9 . The airfoil as recited in  claim 1 , wherein the at least one shroud includes a plurality of distinct shroud pieces that, when assembled together, circumscribe the at least one fitting. 
     
     
         10 . The airfoil as recited in  claim 1 , wherein the at least one shroud includes a shroud body extending between first and second broadsides, perimeter edges and interior edges that define an elongated, arcuate opening extending between the first and second broadsides. 
     
     
         11 . A shroud for a turbine engine airfoil, the shroud comprising:
 a shroud body extending between first and second broadsides, perimeter edges and interior edges, the interior edges defining an elongated, arcuate opening extending between the first and second broadsides.   
     
     
         12 . The shroud as recited in  claim 11 , further comprising a seal member attached to at least one of the perimeter edges. 
     
     
         13 . The shroud as recited in  claim 12 , wherein the at least one of the perimeter edges to which the seal member is attached includes a slot, and the seal member is located in the slot. 
     
     
         14 . The shroud as recited in  claim 12 , wherein the seal member is adhesively bonded to the at least one of the perimeter edges. 
     
     
         15 . The shroud as recited in  claim 11 , wherein the shroud body includes separate and distinct pieces that each include a portion of the interior edges such that, when the separate and distinct pieces are assembled together, the separate and distinct pieces define the elongated, arcuate opening. 
     
     
         16 . The shroud as recited in  claim 11 , wherein the shroud body is monolithic. 
     
     
         17 . The shroud as recited in  claim 11 , wherein the shroud body comprises a polymeric material. 
     
     
         18 . A turbine engine comprising:
 a fan section including an airfoil having an airfoil body extending between a leading edge and a trailing edge, a suction side and a pressure side, and a first end and a second end, at least one fitting located on at least one of the first end and the second end, the at least one fitting including at least one mounting lug, and at least one shroud adhesively bonded to the at least one fitting;   a compressor section in communication with the fan section;   a combustor in fluid communication with the compressor section; and   a turbine section in fluid communication with the combustor.   
     
     
         19 . A method of assembling an airfoil, the method comprising:
 providing an airfoil body extending between a leading edge and a trailing edge, a suction side and a pressure side, and a first end and a second end, and at least one fitting located on at least one of the first end and the second end, the at least one fitting including at least one mounting lug; and   adhesively bonding at least one shroud to the at least one fitting.

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