Fan stator

Abstract

According to some embodiments, an apparatus includes a housing, a hub, and a plurality of airfoils, each of the plurality of airfoils having a leading edge, a trailing edge, a first end, and a second end, wherein the first end of each of the plurality of airfoils is fixedly coupled to the hub and wherein the second end of each of the plurality of airfoils is fixedly coupled to the housing.

1 . An apparatus comprising: 
 a housing;    a hub; and    a plurality of airfoils, each of the plurality of airfoils having a leading edge, a trailing edge, a first end, and a second end,    wherein the first end of each of the plurality of airfoils is fixedly coupled to the hub and wherein the second end of each of the plurality of airfoils is fixedly coupled to the housing.    
   
   
       2 . An apparatus according to  claim 1 , 
 wherein a maximum camber of at least one of the plurality of airfoils is 8% or more of a length of the at least one of the plurality of airfoils.    
   
   
       3 . An apparatus according to  claim 2 , wherein each of the plurality of airfoils complies with at least one of NACA 93xx, 94xx, 83xx, or 84xx airfoil geometries.  
   
   
       4 . An apparatus according to  claim 1 , wherein the leading edge of at least one of the plurality of airfoils defines a first curve to reduce a tangential velocity vector and increase a static pressure vector of air received at the leading edge.  
   
   
       5 . An apparatus according to  claim 4 , further comprising: 
 a fan to deliver the air to the leading edges of the plurality of airfoils, the fan comprising a plurality of fan blades,    wherein the first curve is disposed perpendicular at a given radius to a trailing edge of at least one of the plurality of fan blades at the given radius.    
   
   
       6 . An apparatus according to  claim 1 , wherein the leading edge of at least one of the plurality of airfoils defines a first curve to reduce a radial velocity vector and increase a static pressure vector of air received at the leading edge.  
   
   
       7 . An apparatus according to  claim 6 , further comprising: 
 a fan to deliver the air to the leading edges of the plurality of airfoils, the fan comprising a plurality of fan blades,    wherein the first curve is disposed substantially perpendicular at a given radius to a trailing edge of at least one of the plurality of fan blades at the given radius.    
   
   
       8 . An apparatus according to  claim 1 , wherein the first end is not coplanar with the second end.  
   
   
       9 . An apparatus according to  claim 8 , wherein the vane angle of at least one of the plurality of airfoils is  55  degrees at the hub and  75  degrees at the housing.  
   
   
       10 . An apparatus according to  claim 8 , wherein the vane angle of at least one of the plurality of airfoils is  43  degrees at the hub and  73  degrees at the housing.  
   
   
       11 . An apparatus according to  claim 8 , wherein the vane angle increases with distance from the hub.  
   
   
       12 . An apparatus according to  claim 8 , wherein the leading edge of at least one of the plurality of airfoils defines a first curve to reduce a radial velocity vector and a tangential velocity vector and to increase a static pressure vector of air received at the leading edge.  
   
   
       13 . An apparatus according to  claim 1 , further comprising: 
 a fan to deliver the air to the leading edges of the plurality of airfoils, the fan comprising only N fan blades,    wherein the apparatus comprises only M airfoils, and    wherein M is not an integer multiple of N.    
   
   
       14 . An apparatus according to  claim 13 , further comprising: 
 a fan motor disposed within the fan and coupled to the hub,    wherein the fan is coupled to the fan motor.    
   
   
       15 . An apparatus according to  claim 13 , wherein M is equal to N+1.  
   
   
       16 . A system comprising: 
 a housing;    a hub;    a plurality of airfoils, each of the plurality of airfoils having a leading edge, a trailing edge, a first end, and a second end;    a microprocessor; and    an aluminum and copper composite heatsink coupled to the microprocessor, the heatsink to receive air from the trailing edges of the plurality of airfoils,    wherein the first end of each of the plurality of airfoils is fixedly coupled to the hub and wherein the second end of each of the plurality of airfoils is fixedly coupled to the housing.    
   
   
       17 . A system according to  claim 16 , 
 wherein a maximum camber of at least one of the plurality of airfoils is 8% or more of a length of the at least one of the plurality of airfoils.    
   
   
       18 . A system according to  claim 17 , wherein each of the plurality of airfoils complies with at least one of NACA 93xx, 94xx, 83xx, or 84xx airfoil geometries.  
   
   
       19 . A system according to  claim 16 , wherein the leading edge of at least one of the plurality of airfoils defines a first curve to reduce a tangential velocity vector and increase a static pressure vector of air received at the leading edge.  
   
   
       20 . A system according to  claim 19 , further comprising: 
 a fan to deliver the air to the leading edges of the plurality of airfoils, the fan comprising a plurality of fan blades,    wherein the first curve is disposed perpendicular at a given radius to a trailing edge of at least one of the plurality of fan blades at the given radius.    
   
   
       21 . A system according to  claim 16 , wherein the leading edge of at least one of the plurality of airfoils defines a first curve to reduce a radial velocity vector and increase a static pressure vector of air received at the leading edge.  
   
   
       22 . A system according to  claim 21 , further comprising: 
 a fan to deliver the air to the leading edges of the plurality of airfoils, the fan comprising a plurality of fan blades,    wherein the first curve is disposed substantially perpendicular at a given radius to a trailing edge of at least one of the plurality of fan blades at the given radius.    
   
   
       23 . A system according to  claim 16 , wherein the first end is not coplanar with the second end.  
   
   
       24 . A system according to  claim 23 , wherein the vane angle of at least one of the plurality of airfoils is 55 degrees at the hub and 75 degrees at the housing.  
   
   
       25 . A system according to  claim 23 , wherein the vane angle of at least one of the plurality of airfoils is 43 degrees at the hub and 73 degrees at the housing.  
   
   
       26 . A system according to  claim 23 , wherein the vane angle increases with distance from the hub.  
   
   
       27 . A system according to  claim 23 , wherein the leading edge of at least one of the plurality of airfoils defines a first curve to reduce a radial velocity vector and a tangential velocity vector and to increase a static pressure vector of air received at the leading edge.  
   
   
       28 . A system according to  claim 16 , further comprising: 
 a fan to deliver the air to the leading edges of the plurality of airfoils, the fan comprising only N fan blades,    wherein the apparatus comprises only M airfoils, and    wherein M is not an integer multiple of N.    
   
   
       29 . A system according to  claim 28 , further comprising: 
 a fan motor disposed within the fan and coupled to the hub,    wherein the fan is coupled to the fan motor.    
   
   
       30 . A system according to  claim 28 , wherein M is equal to N+1.