Air vent for ventilation systems

Abstract

An air vent is provided that is capable of delivering a distributed divergent air flow with a predominant direction of flow that can be changed within a wide range of mutually perpendicular directions. In one embodiment, the air vent has an outlet grid that is generally ball shaped and that is rotatably mounted at an end of an air duct for rotation about its center. Each of the multiple outlet openings of the grid points to a direction that is different from pointing directions of all other outlet openings so that a divergent air flow is obtained. By rotating the ball shaped grid about its center, the predominant direction of air flow can nevertheless be changed in a within a wide range.

1 . An air vent for ventilation system in a vehicle, comprising an outlet grid having multiple outlet openings, wherein said outlet grid is generally ball shaped and is rotatably mounted at an end of an air duct for rotation about its center.  
   
   
       2 - 17 . (canceled)  
   
   
       18 . An air vent for a ventilation system in a vehicle, comprising an outlet grid having multiple outlet openings which deliver a flow of air, comprising a cylindrical duct member having a first end connected to an air duct and a second end closed by a wall, said outlet grid forming a circumferential envelope area of said duct member and adjacent outlet openings in a circumferential direction pointing in different directions, said outlet openings thus delivering a divergent flow of air.  
   
   
       19 . The air vent according to  claim 18 , wherein said duct member has a circumferential envelope area opposite said outlet grid and comprising a plurality of axially extending slots defined by axial webs spaced from each other in the circumferential direction of the duct member.  
   
   
       20 . The air vent according to  claim 18 , wherein a set of parallel air deflection flaps are pivotally mounted within said duct member on axes that extend diametrically of the duct member.  
   
   
       21 . The air vent according to  claim 20 , wherein said deflection flaps are provided with through openings.  
   
   
       22 . The air vent according to  claim 21 , wherein said through openings have cross sectional areas that become smaller from one deflection flap to the next in the axial direction of the duct member.  
   
   
       23 . The air vent of  claim 18 , wherein the duct member is provided with a connection sleeve for connection to an air duct with a sliding fit permitting rotation of the air vent about an axis of the duct member.  
   
   
       24 . An air vent for a ventilation system in a vehicle, comprising an outlet grid having multiple outlet openings, comprising a cylindrical duct member having a first end connected to an air duct and a second end closed by a wall, wherein said outlet grid forms a circumferential envelope area of said duct member wherein, said duct member has a circumferential envelope area opposite said outlet grid and comprising a plurality of axially extending slots defined by axial webs spaced from each other in the circumferential direction of the duct member.  
   
   
       25 . An air vent for a ventilation system in a vehicle, comprising an outlet grid having multiple outlet openings, comprising a cylindrical duct member having a first end connected to an air duct and a second end closed by a wall, wherein said outlet grid forms a circumferential envelope area of said duct member, wherein a set of parallel air deflection flaps are pivotally mounted within said duct member on axes that extend diametrically of the duct member.  
   
   
       26 . An air vent for a ventilation system in a vehicle, comprising an outlet grid having multiple outlet openings, comprising a cylindrical duct member having a first end connected to an air duct and a second end closed by a wall, wherein said outlet grid forms a circumferential envelope area of said duct member, wherein said duct member is provided with a connection sleeve for connection to an air duct with a sliding fit permitting rotation of the air vent about an axis of the duct member.