Heat exchanger

Abstract

A heat exchanger is disclosed. The heat exchanger includes a first header, a second header, and at least one tube extending from the first header to the second header in a serpentine configuration and including a plurality of bent tube portions arranged coaxially to each other. Each of the plurality of bent tube portions is connected to adjacently arranged one or more bent tube portions of the plurality of bent tube portions to enable a flow of fluid to an adjacently arranged bent tube portion.

What is claimed is: 
     
         1 . A heat exchanger, comprising:
 a first header;   a second header; and   at least one tube extending from the first header to the second header in a serpentine configuration and including a plurality of bent tube portions arranged coaxially to each other,
 wherein each of the plurality of bent tube portions is connected to adjacently arranged one or more bent tube portions of the plurality of bent tube portions to enable a flow of fluid to an adjacently arranged bent tube portion. 
   
     
     
         2 . The heat exchanger of  claim 1 , wherein the at least one tube includes
 a first tube having a plurality of first bent tube portions arranged on a first side of the first header and the second header, and   a second tube having a plurality of second bent tube portions arranged on a second side of the first header and the second header.   
     
     
         3 . The heat exchanger of  claim 1 , wherein each of the plurality of bent tube portions extends arcuately around a central axis of the heat exchanger. 
     
     
         4 . The heat exchanger of  claim 1 , wherein the first header and the second header are disposed diametrically opposite to each other. 
     
     
         5 . The heat exchanger of  claim 1 , wherein a diameter of at least one of the plurality of bent tube portions is different from a diameter of at least one of remaining bent tubes portions. 
     
     
         6 . The heat exchanger of  claim 1 , wherein the plurality of bent tube portions is co-planar to each other. 
     
     
         7 . The heat exchanger of  claim 1 , wherein at least one of the plurality of bent tube portions is non-coplanar relative to at least one of remaining bent tube portions of the plurality of the bent tube portions. 
     
     
         8 . A heat transfer system, comprising:
 a fan; and   a heat exchanger arranged upstream or downstream of the fan relative to a direction of air flow generated by the fan, the heat exchanger includes
 a first header, 
 a second header, and 
 at least one tube extending from the first header to the second header in a serpentine configuration and including a plurality of bent tube portions arranged coaxially to each other,
 wherein each of the plurality of bent tube portions is connected to adjacently arranged one or more bent tube portions of the plurality of bent tube portions to enable a flow of fluid to an adjacently arranged bent tube portion. 
 
   
     
     
         9 . The heat transfer system of  claim 8 , wherein the at least one tube includes
 a first tube having a plurality of first bent tube portions arranged on a first side of the first header and the second header, and   a second tube having a plurality of second bent tube portions arranged on a second side of the first header and the second header.   
     
     
         10 . The heat transfer system of  claim 8 , wherein each of the plurality of bent tube portions extends arcuately around a central axis of the heat exchanger. 
     
     
         11 . The heat transfer system of  claim 8 , wherein the first header and the second header are disposed diametrically opposite to each other. 
     
     
         12 . The heat transfer system of  claim 8 , wherein a diameter of at least one of the plurality of bent tube portions is different from a diameter of at least one of remaining bent tubes portions. 
     
     
         13 . The heat transfer system of  claim 8 , wherein the plurality of bent tube portions is co-planar to each other. 
     
     
         14 . The heat transfer system of  claim 8 , wherein at least one of the plurality of bent tube portions is non-coplanar relative to at least one of remaining bent tube portions of the plurality of the bent tube portions. 
     
     
         15 . A heat transfer system, comprising:
 a fan having a plurality of blades and a motor operatively coupled to the plurality of blades and configured to rotate the plurality of blades; and   a heat exchanger coupled to the motor and including
 a first header; 
 a second header; and 
 at least one tube extending from the first header to the second header in a serpentine configuration and including a plurality of bent tube portions arranged coaxially to each other with at least one of the plurality of bent tube portions attached to the motor,
 wherein each of the plurality of bent tube portions is connected to adjacently arranged one or more bent tube portions of the plurality of bent tube portions to enable a flow of fluid to an adjacently arranged bent tube portion. 
 
   
     
     
         16 . The heat transfer system of  claim 15 , wherein the at least one bent tube includes
 a first tube having a plurality of first bent tube portions arranged on a first side of the first header and the second header with at least one of the plurality of first bent tube portions attached to the motor, and   a second tube having a plurality of second bent tube portions arranged on a second side of the first header and the second header with at least one of the plurality of second bent tube portions attached to the motor.   
     
     
         17 . The heat transfer system of  claim 15 , wherein each of the plurality of bent tube portions extends arcuately around a central axis of the heat exchanger. 
     
     
         18 . The heat transfer system of  claim 15 , wherein a diameter of at least one of the plurality of bent tube portions is different from a diameter of at least one of remaining bent tubes portions. 
     
     
         19 . The heat transfer system of  claim 15 , wherein the plurality of bent tube portions is co-planar to each other. 
     
     
         20 . The heat transfer system of  claim 15 , wherein at least one of the plurality of bent tube portions is non-coplanar relative to at least one of remaining bent tube portions of the plurality of the bent tube portions.