Bent coil for ducted unit

Abstract

A bent coil for use in a ducted heating and cooling unit improves the heat exchange. The bent coil increases the overall surface area of the coil for a given duct volume, improving the heat exchange characteristics of the coil. The bent coil discharges air both longitudinally and laterally, eliminating the need for any additional ducting downstream from the coil to divert air toward the sides.

1 . An apparatus for a ducted heating and cooling unit, comprising: 
 a bent coil having a coil surface through which outlet air is discharged in a first direction and a second direction different than the first direction;    at least one substantially vertical fin disposed in the bent coil, wherein said at least one substantially vertical fin directs the outlet air substantially perpendicular to the coil surface to enable dividing of the outlet air in the first direction and the second direction; and    at least two fans moving unconditioned air towards the bent coil.    
     
     
         2 . The apparatus of  claim 1 , wherein the first direction of the outlet air is longitudinal and the second direction of the outlet air is at an angle with respect to the first direction.  
     
     
         3 . The apparatus of  claim 1 , wherein at least a portion of the bent coil is curved.  
     
     
         4 . The apparatus of  claim 1 , wherein the bent coil has a V-shape profile.  
     
     
         5 . (canceled)  
     
     
         6 . A ducted heating and cooling unit, comprising: 
 a bent coil having a coil surface through which outlet air is discharged in a first direction and a second direction different than the first direction;    at least two fans moving unconditioned air towards the bent coil, wherein the bent coil is disposed in at least one of an upstream direction and a downstream direction from the at least two fans;    at least one substantially vertical fin disposed in the bent coil, wherein said at least one substantially vertical fin directs the outlet air substantially perpendicular to the coil surface to enable dividing of the outlet air in the first direction and the second direction; and    a duct that houses said at least two fans and the bent coil.    
     
     
         7 . (canceled)  
     
     
         8 . The ducted unit of  claim 6 , further comprising a separation wall disposed between said at least two fans and the bent coil.  
     
     
         9 . The ducted unit of  claim 6 , wherein the duct includes at least one side opening substantially aligned with the second direction.  
     
     
         10 . The ducted unit of  claim 6 , wherein the bent coil has a V-Shape profile.  
     
     
         11 . (canceled)  
     
     
         12 . The ducted unit of  claim 8 , wherein the separation wall includes at least one opening.  
     
     
         13 . The ducted unit of  claim 6 , wherein the bent coil has a C-shape profile.  
     
     
         14 . The apparatus of  claim 1 , wherein the bent coil has a C-shape profile.  
     
     
         15 . The apparatus of  claim 1 , wherein said at least two fans move the unconditioned air in a first air direction and a second air direction different than the first air direction.  
     
     
         16 . The ducted unit of  claim 6 , wherein said at least two fans move the unconditioned air in a first air direction and a second air direction different than the first air direction.  
     
     
         17 . The ducted unit of  claim 1 , further comprising a separation wall disposed between said at least two fans and the bent coil.  
     
     
         18 . The ducted unit of  claim 17 , wherein the separation wall includes at least one opening.  
     
     
         19 . The apparatus as noted in  claim 9 , wherein said at least one side opening is ductless.  
     
     
         20 . The apparatus as recited in  claim 1 , wherein said bent coil includes a plurality of tubes that are aligned vertically and staggered horizontally.  
     
     
         21 . The ducted unit as recited in  claim 6 , wherein said bent coil includes a plurality of tubes that are aligned vertically and staggered horizontally.