High efficiency integrated ax-radial blower and heat exchanger

Abstract

A heat transfer device includes a heat exchanger with a base and a plurality of fins. A center axis extends through the base such that the base extends outward from the center axis in a radial direction. The plurality of fins is connected to the base and defines a corresponding plurality of air flow channels supported on the base. Each of the plurality of air flow channels includes an inlet and an outlet radially outward from the inlet relative the center axis. Each of the plurality of air flow channels turns between the inlet and the outlet relative the center axis and the radial direction.

1 . A heat transfer device comprising:
 a heat exchanger comprising:
 a base; 
 a center axis extending through the base such that the base extends outward from the center axis in a radial direction; and 
 a plurality of fins connected to the base and defining a corresponding plurality of air flow channels supported on the base, wherein each of the plurality of air flow channels comprises:
 an inlet; and 
 an outlet radially outward from the inlet relative the center axis, and 
 wherein each of the plurality of air flow channels turns between the inlet and the outlet relative the center axis and the radial direction. 
 
   
     
     
         2 . The heat transfer device of  claim 1 , further comprising:
 a blower connected to the heat exchanger and coaxial with the center axis, and wherein an exit of the blower is fluidically connected to the inlet of each of the plurality of air flow channels.   
     
     
         3 . The heat transfer device of  claim 2 , wherein each of the plurality of air flow channels extends axially from the inlet and extends radially through the outlet relative the center axis. 
     
     
         4 . The heat transfer device of  claim 3 , wherein the blower is an axial fan. 
     
     
         5 . The heat transfer device of  claim 2 , wherein each of the plurality of air flow channels is a mixed flow channel with the inlet angled relative the center axis and the radial direction, and the outlet facing radially outward. 
     
     
         6 . The heat transfer device of  claim 5 , wherein the blower is a mixed flow fan such that the exit of the blower is angled relative the center axis and the radial direction. 
     
     
         7 . The heat transfer device of  claim 1 , wherein each of the plurality of fins curves circumferentially relative the center axis. 
     
     
         8 . A heat transfer device comprising:
 a heat exchanger comprising:
 a base; 
 a center axis extending through the base such that the base extends outward from the center axis in a radial direction; and 
 a plurality of fins connected to the base and defining a corresponding plurality of air flow channels supported on the base, wherein each of the plurality of fins comprises:
 a leading edge; 
 a trailing edge positioned radially outward from the leading edge; and 
 a fin body extending between the leading edge and the trailing edge, wherein the fin body turns relative the center axis and the radial direction between the leading edge and the trailing edge; and 
 
   a blower connected to the heat exchanger and coaxial with the center axis, and wherein an exit of the blower is fluidically connected to each of the plurality of air flow channels.   
     
     
         9 . The heat transfer device of  claim 8 , wherein each of the plurality of air flow channels comprises:
 an inlet; and   an outlet radially outward from the inlet relative the center axis, and   wherein each of the plurality of air flow channels turns between the inlet and the outlet relative the center axis and the radial direction.   
     
     
         10 . The heat transfer device of  claim 9 , wherein each of the plurality of air flow channels extends axially from the inlet and extends radially through the outlet relative the center axis. 
     
     
         11 . The heat transfer device of  claim 10 , wherein the base comprises a conical hub coaxial with the center axis, and wherein the leading edge of each of the plurality of fins is on the conical hub. 
     
     
         12 . The heat transfer device of  claim 10 , wherein the blower is an axial fan. 
     
     
         13 . The heat transfer device of  claim 9 , wherein each of the plurality of air flow channels is a mixed flow channel with the inlet angled relative the center axis and the radial direction, and the outlet facing radially outward. 
     
     
         14 . The heat transfer device of  claim 13 , wherein the blower is a mixed flow fan such that the exit of the blower is angled relative the center axis and the radial direction. 
     
     
         15 . The heat transfer device of  claim 8 , wherein each of the plurality of fins curves circumferentially relative the center axis. 
     
     
         16 . A heat transfer device comprising:
 a heat exchanger comprising:
 a base; 
 a center axis extending through the base such that the base extends outward from the center axis in a radial direction; and 
 a plurality of fins connected to the base and defining a corresponding plurality of air flow channels supported on the base, wherein each of the plurality of air flow channels comprises:
 an inlet; 
 an outlet radially outward from the inlet relative the center axis; and 
 a turn between the inlet and the outlet, wherein the turn bends the respective air flow channel relative the center axis and the radial direction. 
 
   
     
     
         17 . The heat transfer device of  claim 16 , further comprising:
 a blower connected to the heat exchanger and coaxial with the center axis, and wherein an exit of the blower is fluidically connected to the inlet of each of the plurality of air flow channels.   
     
     
         18 . The heat transfer device of  claim 17 , wherein each of the plurality of air flow channels extends axially from the inlet to the turn, and extends radially from the turn to the outlet relative the center axis, and wherein the blower is an axial fan. 
     
     
         19 . The heat transfer device of  claim 17 , wherein each of the plurality of air flow channels is a mixed flow channel with the inlet at the turn and angled relative the center axis and the radial direction, and the outlet facing radially outward, and wherein the blower is a mixed flow fan such that the exit of the blower is angled relative the center axis and the radial direction. 
     
     
         20 . The heat transfer device of  claim 17 , wherein each of the plurality of air flow channels extends axially and curves circumferentially from the inlet to the turn, and extends radially and curves circumferentially from the turn to the outlet relative the center axis, and wherein the blower is an axial fan.