Article and manifold for thermal adjustment of a turbine component

Abstract

An article is disclosed including a manifold, an article wall having at least one external aperture, and a post-impingement cavity disposed between the manifold and the article wall. The manifold includes an impingement plate defining a plenum having a plenum surface, and at least one impingement aperture. The at least one impingement aperture interfaces with the plenum at an intake aperture having a flow modification structure, which, together with the at least one impingement aperture, defines an exhaust aperture. The manifold exhausts a fluid from the plenum into the intake aperture, through the at least one impingement aperture, out the exhaust aperture, into the post-impingement cavity, and through the at least one external aperture.

What is claimed is: 
     
         1 . A manifold, comprising an impingement plate, the impingement plate defining a plenum and at least one impingement aperture, wherein:
 the plenum includes a plenum surface;   the at least one impingement aperture interfaces with the plenum at an intake aperture;   the at least one impingement aperture includes a flow modification structure in contact with the impingement plate;   the at least one impingement aperture includes an exhaust aperture;   the exhaust aperture is defined by:
 the flow modification structure; or 
 the at least one impingement aperture and the flow modification structure; 
   the manifold is arranged to exhaust a fluid from the plenum into the intake aperture, through the at least one impingement aperture, and out the exhaust aperture; and   the manifold is selected from the group consisting of a turbine airfoil manifold, a turbine bucket manifold, a turbine nozzle manifold, a turbine shroud manifold, and combinations thereof.   
     
     
         2 . The manifold of  claim 1 , wherein the manifold is a turbine airfoil manifold. 
     
     
         3 . The manifold of  claim 1 , wherein the manifold is a turbine bucket manifold. 
     
     
         4 . The manifold of  claim 1 , wherein the manifold is a turbine nozzle manifold. 
     
     
         5 . The manifold of  claim 1 , wherein the manifold is a turbine shroud manifold. 
     
     
         6 . The manifold of  claim 1 , wherein the intake aperture includes an intake area, the exhaust aperture includes at least one exhaust area, and the at least one exhaust area is between 10% to 500% of the intake area. 
     
     
         7 . The manifold of  claim 1 , wherein the at least one impingement aperture defines an impingement angle relative to the plenum surface between 30° and 90°. 
     
     
         8 . The manifold of  claim 7 , wherein the impingement angle is between 30° and 75°. 
     
     
         9 . The manifold of  claim 7 , wherein the exhaust aperture deflects from the impingement angle by a deflection angle of up to 60°. 
     
     
         10 . The manifold of  claim 9 , wherein the deflection angle is between 15° and 60°. 
     
     
         11 . The manifold of  claim 1 , wherein the exhaust aperture is annular. 
     
     
         12 . The manifold of  claim 1 , wherein the flow modification structure includes a turbulator. 
     
     
         13 . The manifold of  claim 12 , wherein the turbulator includes at least one vane. 
     
     
         14 . The manifold of  claim 13 , wherein the at least one vane includes a torsional conformation. 
     
     
         15 . The manifold of  claim 1 , wherein the flow modification structure includes a plurality of flow distribution apertures. 
     
     
         16 . The manifold of  claim 1 , wherein the flow modification structure includes a directional nozzle. 
     
     
         17 . The manifold of  claim 1 , wherein the fluid is a cooling fluid. 
     
     
         18 . The manifold of  claim 17 , wherein the manifold is arranged to exhaust the cooling fluid toward a hot gas path of a gas turbine. 
     
     
         19 . A manifold, comprising an impingement plate, the impingement plate defining a plenum and at least one impingement aperture, wherein:
 the plenum includes a plenum surface;   the at least one impingement aperture interfaces with the plenum at an intake aperture;   the at least one impingement aperture includes a flow modification structure in contact with the impingement plate;   the at least one impingement aperture includes an exhaust aperture;   the exhaust aperture is defined by:
 the flow modification structure; or 
 the at least one impingement aperture and the flow modification structure; and 
   the manifold is arranged to exhaust a cooling fluid from the plenum into the intake aperture, through the at least one impingement aperture, and out the exhaust aperture toward a hot gas path of a gas turbine.   
     
     
         20 . A manifold, comprising an impingement plate, the impingement plate defining a plenum and at least one impingement aperture, wherein:
 the plenum includes a plenum surface;   the at least one impingement aperture interfaces with the plenum at an intake aperture;   the at least one impingement aperture defines an impingement angle relative to the plenum surface between 30° and 75°;   the at least one impingement aperture includes a flow modification structure in contact with the impingement plate;   the at least one impingement aperture includes an exhaust aperture;   the exhaust aperture is defined by:
 the flow modification structure; or 
 the at least one impingement aperture and the flow modification structure; and 
   the manifold is arranged to exhaust a fluid from the plenum into the intake aperture, through the at least one impingement aperture, and out the exhaust aperture.