Blower assembly with pre-swirler

Abstract

A blower assembly for use in a vehicle is disclosed, wherein the blower assembly includes a pre-swirler for causing a change of direction of air entering the blower assembly.

1 . A blower assembly comprising:
 a blower housing including a fluid inlet and a spaced apart fluid outlet;   a fan disposed in the blower housing; and   a pre-swirler disposed in the inlet of the blower housing, wherein the pre-swirler is formed integrally with the blower housing.   
     
     
         2 . The blower assembly according to  claim 1 , wherein the blower assembly is adapted to be disposed in a vehicle. 
     
     
         3 . The blower assembly according to  claim 1 , wherein the pre-swirler is substantially stationary relative to the blower housing. 
     
     
         4 . The blower assembly according to  claim 1 , wherein the pre-swirler includes a plurality of vanes extending radially outwardly form a central hub to terminate at an outer ring. 
     
     
         5 . The blower assembly according to  claim 4 , wherein the vanes include a leading edge and a trailing edge. 
     
     
         6 . The blower assembly according to  claim 5 , wherein the vanes include an outer edge extending between the leading edge and the trailing edge. 
     
     
         7 . The blower assembly according to  claim 5 , wherein the pre-swirler includes five vanes. 
     
     
         8 . The blower assembly according to  claim 5 , wherein the pre-swirler includes seven vanes. 
     
     
         9 . A blower assembly comprising:
 a blower housing including a fluid inlet and a spaced apart fluid outlet; and   a pre-swirler disposed in the inlet of the blower housing, the pre-swirler including a central hub, an outer ring, and a plurality of vanes extending radially outwardly form the hub to terminate at an outer ring.   
     
     
         10 . The blower assembly according to  claim 9 , wherein the blower assembly is adapted to be disposed in a vehicle. 
     
     
         11 . The blower assembly according to  claim 9 , wherein the pre-swirler is formed integrally with the blower housing. 
     
     
         12 . The blower assembly according to  claim 9 , wherein the pre-swirler is substantially stationary relative to the blower housing. 
     
     
         13 . The blower assembly according to  claim 9 , wherein the vanes include a leading edge and a trailing edge. 
     
     
         14 . The blower assembly according to  claim 13 , wherein the vanes include an outer edge extending between the leading edge and the trailing edge. 
     
     
         15 . The blower assembly according to  claim 9 , wherein the pre-swirler includes five vanes. 
     
     
         16 . The blower assembly according to  claim 9 , wherein the pre-swirler includes seven vanes. 
     
     
         17 . The blower assembly according to  claim 11 , further comprising a fan disposed in the blower housing. 
     
     
         18 . A blower assembly comprising:
 a blower housing including a fluid inlet and a spaced apart fluid outlet;   a fan disposed in the blower housing; and   a pre-swirler disposed in the inlet of the blower housing, the pre-swirler including a centrally formed hub, an outer ring, and a plurality of vanes, the vanes extending radially outwardly from the centrally formed hub to the outer ring, wherein the vanes include a leading edge, a trailing edge, and a surface formed between the leading edge and the trailing edge, wherein the pre-swirler is formed integrally with the blower housing.   
     
     
         19 . The blower assembly according to  claim 18 , wherein the pre-swirler includes five vanes. 
     
     
         20 . The blower assembly according to  claim 18 , wherein the pre-swirler includes seven vanes.