Guide vane and method of fabricating the same

Abstract

A method for fabricating an outlet guide vane includes the steps of fabricating a structural spar from a first material, fabricating a fairing from a second material, and installing the fairing onto the spar so as to at least partially surround the spar and form an airfoil. An outlet guide vane includes an airfoil including a leading edge and a trailing edge, a structural spar formed from a first material located within the airfoil, and a fairing formed from a second material at least partially surrounding the spar. A gas turbine engine assembly includes a core gas turbine engine, a fan assembly including a plurality of fan blades coupled to the core gas turbine engine, and a plurality of outlet guide vanes coupled downstream from the fan blades, at least one of the outlet guide vanes including an airfoil having a leading edge and a trailing edge, a structural spar formed from a first material located within the airfoil, and a fairing formed from a second material at least partially surrounding the spar.

1 . A method for fabricating a gas turbine engine outlet guide vane, comprising:
 fabricating a structural spar from a first material;   fabricating a fairing from a second material; and   installing said fairing onto said spar so as to at least partially surround said spar and form an airfoil.   
   
   
       2 . A method in accordance with  claim 1 , further comprising:
 installing a filler material between the structural spar and the fairing, the filler material being fabricated from a third material that is lighter than the first and second materials.   
   
   
       3 . A method in accordance with  claim 1 , further comprising:
 securing said fairing onto said spar with fasteners.   
   
   
       4 . A method in accordance with  claim 1 , further comprising forming a plurality of openings through said spar to reduce the weight of the airfoil. 
   
   
       5 . An outlet guide vane for a gas turbine engine, said outlet guide vane comprising:
 an airfoil having a leading edge and a trailing edge;   a structural spar formed from a first material located within said airfoil; and   a fairing formed from a second material at least partially surrounding said spar.   
   
   
       6 . An outlet guide vane in accordance with  claim 5 , further comprising a filler material formed from a third material positioned between said spar and said fairing. 
   
   
       7 . An outlet guide vane in accordance with  claim 5 , wherein said first material comprises a composite material and said second material comprises a foam material. 
   
   
       9 . A gas turbine engine assembly, comprising:
 a core gas turbine engine;   a fan assembly disposed downstream from said core gas turbine engine, said fan assembly comprising a plurality of fan blades; and   a plurality of outlet guide vanes disposed downstream from said fan blades, at least one of said outlet guide vanes comprising   an airfoil having a leading edge and a trailing edge;   a structural spar formed from a first material located within said airfoil; and   a fairing formed from a second material at least partially surrounding said spar.   
   
   
       9 . A gas turbine engine assembly in accordance with claim  8 , said outlet guide vane further comprising a filler material formed from a third material positioned between said spar and said fairing.