Multiple Air dam device

Abstract

An impinging air duct comprising a columnating plate and a plurality of orifices disposed thereon. A plurality of air dams direct air entering the impinging air duct through the orifices, to ensure that the flow of air out of the duct is substantially even along the length of the duct.

1 . An impinging air duct, comprising:
 an opening at one end of the air duct, wherein an air flow enters the air duct through said opening;   a columnating plate having a face with a plurality of orifices disposed thereon and a plurality of side walls, wherein said air flow passes over said columnating plate; and   at least one air dam disposed along said face of said columnating plate, wherein said dam directs said air flow through said orifices.   
   
   
       2 . The impinging air duct of  claim 1 , wherein a distance between said air dam and said opening is adjustable. 
   
   
       3 . The impinging air duct of  claim 1 , wherein a height of said air dam is adjustable. 
   
   
       4 . The impinging air duct of  claim 1 , wherein said air dam is connected to said side walls of said columnating plate, and an angle of connection between said air dam and said side wall of said columnating plate is adjustable. 
   
   
       5 . The impinging air duct of  claim 1 , wherein an angle between said air dam and said face of said columnating plate is adjustable. 
   
   
       6 . A method of directing air flow through an impinging air duct, said method comprising the steps of:
 supplying the air flow through an opening of the impinging air duct;   directing the air flow through a plurality of columnating orifices disposed on a columnating plate disposed within the impinging air duct.