US2013170969A1PendingUtilityA1

Turbine Diffuser

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Assignee: SUBRAMANIYAN MOORTHIPriority: Jan 4, 2012Filed: Jan 4, 2012Published: Jul 4, 2013
Est. expiryJan 4, 2032(~5.5 yrs left)· nominal 20-yr term from priority
Inventors:Moorthi SubramaniyanVignesh RadhakrishnanBala M. SinghManjunath B. C
F01D 5/146F05D 2240/126F01D 5/14F01D 5/145
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Claims

Abstract

The present application provides a diffuser for use with a gas turbine. The diffuser may include hub, a number of struts extending from the hub, and a number of airfoils extending from the hub.

Claims

exact text as granted — not AI-modified
We claim: 
     
         1 . A diffuser for use with a gas turbine, comprising:
 a hub;   a plurality of struts extending from the hub; and   a plurality of airfoils extending from the hub.   
     
     
         2 . The diffuser of  claim 1 , wherein one of the plurality of airfoils is positioned between a pair of the plurality of struts. 
     
     
         3 . The diffuser of  claim 1 , wherein one or more of the plurality of airfoils comprises a slot therein. 
     
     
         4 . The diffuser of  claim 1 , wherein one or more of the plurality of airfoils comprises a hunch back airfoil. 
     
     
         5 . The diffuser of  claim 4 , wherein the hunch back air foil comprises a spoiler thereon. 
     
     
         6 . The diffuser of  claim 1 , wherein one or more of the plurality of airfoils comprises a vortex generator airfoil. 
     
     
         7 . The diffuser of  claim 6 , wherein the vortex generator airfoil comprises a sinusoidal configuration. 
     
     
         8 . The diffuser of  claim 1 , wherein one or more of the plurality of airfoils comprises a fluidic airfoil. 
     
     
         9 . The diffuser of  claim 8 , wherein the fluidic airfoil comprises one or more ports thereon. 
     
     
         10 . The diffuser of  claim 1 , wherein one or more of the plurality of airfoils comprises a high lift airfoil. 
     
     
         11 . The diffuser of  claim 10 , wherein the high lift airfoil comprises one or more airfoil elements. 
     
     
         12 . The diffuser of  claim 1 , wherein one or more of the plurality of airfoils comprises a cambered airfoil. 
     
     
         13 . The diffuser of  claim 12 , wherein the cambered airfoil comprises a thickened configuration. 
     
     
         14 . The diffuser of  claim 1 , wherein one or more of the plurality of airfoils comprises an extended airfoil. 
     
     
         15 . The diffuser of  claim 14 , wherein the extended airfoil comprises a forward bend. 
     
     
         16 . A diffuser for use with a gas turbine, comprising:
 a hub;   a plurality of struts extending from the hub;   a plurality of airfoils extending from the hub such that one of the plurality of airfoils is positioned between a pair of the plurality of struts; and   a casing.   
     
     
         17 . The diffuser of  claim 16 , wherein one or more of the plurality of airfoils comprises a slot therein. 
     
     
         18 . The diffuser of  claim 16  wherein one or more of the plurality of airfoils comprises a spoiler thereon. 
     
     
         19 . The diffuser of  claim 16 , wherein one or more of the plurality of airfoils comprises a sinusoidal configuration. 
     
     
         20 . A diffuser for use with a gas turbine, comprising:
 a hub;   a plurality of struts extending from the hub; and   a plurality of airfoils extending from the hub;   the plurality of airfoils comprising a plurality of configurations.

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