Swirler assembly

Abstract

A swirler assembly includes: a base plate having an opening at a center thereof; a plurality of vanes arranged on a first region of a surface of the base plate, the plurality of vanes being spaced apart from one another along a circumferential direction of the base plate; and a plurality of air injection holes arranged in a second region of the surface of the base plate, the second region located between the opening and the first region of the surface of the base plate in a radial direction of the base plate.

1 . A swirler assembly comprising:
 a base plate having an opening at a center thereof;   a plurality of vanes arranged on a first region of a surface of the base plate, the plurality of vanes being spaced apart from one another along a circumferential direction of the base plate; and   a plurality of air injection holes arranged in a second region of the surface of the base plate, the second region located between the opening and the first region of the surface of the base plate.   
     
     
         2 . The swirler assembly of  claim 1 , further comprising a cover plate covering the plurality of vanes, the plurality of vanes provided between the cover plate and the base plate. 
     
     
         3 . The swirler assembly of  claim 1 , wherein each of the plurality of vanes is arranged to be inclined with respect to the radial direction of the base plate. 
     
     
         4 . The swirler assembly of  claim 1 , wherein the plurality of air injection holes are arranged between adjacent vanes of the plurality of vanes. 
     
     
         5 . The swirler assembly of  claim 1 , wherein the plurality of vanes comprise:
 a first vane; and   a second vane adjacent to the first vane, and   wherein a set of air injection holes of the plurality of air injection holes is arranged in a portion of the second region provided between the first vane and the second vane.   
     
     
         6 . The swirler assembly of  claim 5 , wherein the set of air injection holes is arranged with respect to one another in a direction inclined with respect to the radial direction of the base plate. 
     
     
         7 . The swirler assembly of  claim 1 , wherein each of the plurality of air injection holes is inclined with respect to a thickness direction of the base plate. 
     
     
         8 . The swirler assembly of  claim 1 , further comprising a shaft portion inserted through the opening to support the base plate. 
     
     
         9 . The swirler assembly of  claim 8 , wherein the shaft portion comprises a plurality of fuel injection nozzles configured to inject fuel in the radial direction of the base plate. 
     
     
         10 . The swirler assembly of  claim 9 , wherein the shaft portion has a hollow rod shape, and comprises a fuel supply pipe embedded in an external wall of the shaft portion, the fuel supply pipe extending along a lengthwise direction of the shaft portion and configured to supply the fuel to each of the plurality of fuel injection nozzles. 
     
     
         11 . The swirler assembly of  claim 9 , further comprising a cover plate covering the plurality of vanes, the cover plate facing the base plate,
 wherein the plurality of fuel injection nozzles are located closer to the base plate than to the cover plate.   
     
     
         12 . A swirler assembly comprising:
 a base plate having an opening at a center thereof;   a plurality of vanes arranged along a circumferential direction, the plurality of vanes provided at an outer region on the base plate in a radial direction of the base plate;   a plurality of air injection holes arranged in an inner region of the base plate, the inner region located between the opening and the outer region of the base plate in the radial direction of the base plate; and   a shaft provided through the opening and comprising a plurality of fuel injection nozzles provided on an outer surface of the shaft,   wherein the plurality of vanes are configured to guide air toward the plurality of air injection holes and the plurality of fuel injection nozzles.   
     
     
         13 . The swirler assembly of  claim 12  further comprising a cover plate covering the plurality of vanes, the plurality of vanes provided between the cover plate and the base plate. 
     
     
         14 . The swirler assembly of  claim 12 , wherein the plurality of vanes comprise:
 a first vane; and   a second vane adjacent to the first vane, and   wherein a set of air injection holes of the plurality of air injection holes is arranged in a portion of the inner region provided between the first vane and the second vane.