Self-powered heat exchanger

Abstract

A heat transferring apparatus may employ a heat exchanger with a fluid inlet and a fluid outlet and be coupled to a power exchange unit, which employs a driving fan fluid inlet, a series of inner fan blades to receive the fluid from the driving fan fluid inlet, and a rotable driving fan unit. The inner fan blades are attached to the rotable driving fan unit along with driving magnets. A rotatable driven fan unit has numerous outer fan blades and a series of imbedded driven magnets. The fluid drives the inner fan blades and flows into the heat exchanger. The outer fan blades force air through the heat exchanger and cools the fluid. A power transfer wall located between the inner magnets and the outer magnets transfers magnetic fields from the inner magnets to the outer magnets to impart rotation in the driven fan unit and outer fan blades.

What is claimed is: 
     
         1 . An apparatus for transferring heat from a fluid, the apparatus comprising:
 a tube-in-tube heat exchanger that contains the fluid;   a power exchange unit comprising a driving fan unit and a driven fan unit, the driving fan unit further comprising:
 a plurality of inner fan blades angled for rotation upon being struck by the fluid; and 
 a plurality of inner driving members; 
   the driven fan unit further comprising:
 a plurality of outer fan blades angled for rotation to cause airflow through the heat exchanger; and 
 a plurality of outer opposing driven members; and 
   a cylindrical power transfer wall that prevents the fluid striking the plurality of inner fan blades from flowing outside of the cylindrical power transfer wall; wherein   a magnetic force from one of the plurality of inner driving members or the plurality of outer opposing driven members, imparts rotation to the plurality of outer opposing driven members.   
     
     
         2 . The apparatus for transferring heat according to  claim 1 , wherein the tube-in-tube heat exchanger further defines a plurality of holes in an exterior wall to permit the air to exit from the heat exchanger. 
     
     
         3 . An apparatus for transferring heat from a fluid, the apparatus comprising:
 a tube-in-tube heat exchanger comprising:
 a heat exchanger inlet that receives the fluid into the heat exchanger; and 
 a heat exchanger outlet that discharges the fluid from the heat exchanger; 
   a power exchange unit comprising:
 a driving fan fluid inlet; 
 a plurality of inner fan blades receiving fluid from the driving fan fluid inlet; 
 a rotatable driving fan unit, the plurality of inner fan blades attached to the rotatable driving fan unit; 
 a plurality of driving magnets attached to the rotatable driving fan unit; 
 a rotatable driven fan unit, a plurality of outer fan blades attached to the rotatable driven fan unit; and 
 a plurality of driven magnets attached to the rotatable driven fan unit; wherein 
 the tube-in-tube heat exchanger is attached to the power exchange unit to receive the fluid. 
   
     
     
         4 . The apparatus for transferring heat according to  claim 3 , wherein a power transfer wall is cylindrical and is located between the plurality of driving magnets and the plurality of driven magnets. 
     
     
         5 . The apparatus for transferring heat according to  claim 4 , wherein an inside diameter of the rotatable driven fan unit is larger than an outside diameter of the power transfer wall and the rotatable driven fan unit and the power transfer wall are concentric. 
     
     
         6 . An apparatus for transferring heat from a fluid, the apparatus comprising:
 a power exchange unit comprising:
 a driving fan fluid inlet; 
 a plurality of inner fan blades receiving the fluid from the driving fan fluid inlet; 
 a rotatable driving fan unit, the plurality of inner fan blades attached to the rotatable driving fan unit; 
 a plurality of driving magnets attached to the rotatable driving fan unit; 
 a rotatable driven fan unit, a plurality of outer fan blades attached to the rotatable driven fan unit; 
 a plurality of driven magnets attached to the rotatable driven fan unit, wherein, a tube-in-tube heat exchanger is directly attached to the power exchange unit; and 
 a driving fan fluid outlet; wherein 
   the rotatable driven fan unit is positioned to blow air through the heat exchanger.   
     
     
         7 . The apparatus for transferring heat according to  claim 6 , wherein a power transfer wall is cylindrical and is located between the plurality of driving magnets and the plurality of driven magnets. 
     
     
         8 . The apparatus for transferring heat according to  claim 7 , wherein an inside diameter of the driven fan is larger than an outside diameter of the power transfer wall. 
     
     
         9 . The apparatus for transferring heat according to  claim 8 , the tube-in-tube heat exchanger further comprising:
 a heat exchanger inner tube directly coupled to the driving fan fluid outlet;   a heat exchanger air tube surrounding the heat exchanger inner tube and defining an air gap therebetween;   an air cone with an air receiving end and an air discharging end, the air discharging end coupled to the heat exchanger tube to discharge air into the air gap; and   a turbulence producing device located inside the air cone.   
     
     
         10 . The apparatus for transferring heat according to  claim 9 , wherein:
 the plurality of outer fan blades force air into the air receiving end of the air cone and into the heat exchanger air tube;   the heat exchanger inner tube receives the fluid; and   a heat exchanger outlet that discharges the fluid from the tube-in-tube heat exchanger.   
     
     
         11 . The apparatus for transferring heat according to  claim 10 , wherein:
 the air cone is a frustum of a cone;   the heat exchanger air tube defines a plurality of exit holes for escape of the air from the gap.