Sun tracking system pressure differential driving system

Abstract

A first coolant tank is arranged on first side of a solar energy collecting panel, a second coolant tank is arranged on second side of the solar energy collecting panel. A first wall is arranged beside the first coolant tank, a second wall is arranged beside the second coolant tank. When the sun shifts, one of the coolant tanks is covered partially by one of the walls and hence receives less heat than the other. The pressure difference between the two coolant tanks is used to adjust the solar energy collecting panel so that the panel tracks the sun to receive maximum heat.

1 . A sun tracking system with a pressure differential driving system for a solar panel, comprising:
 a first pressure tank, on a first side of the solar panel, for providing a first pressure;   a second pressure tank, on a second side of the solar panel, for providing a second pressure;   a first wall for casting a shadow on the first pressure tank depending on the location of the sun;   a second wall for casting a shadow on the second pressure tank depending on the location of the sun; and   a control system, coupled to the two pressure tanks, for adjusting an orientation of the solar panel according to a pressure difference between the two pressure tanks.   
   
   
       2 . A sun tracking system as claimed in  claim 1 , further comprising:
 a first pipe, coupling the first pressure tank to the control system; and   a second pipe, coupling the second pressure tank to the control system;   
   
   
       3 . A sun tracking system as claimed in  claim 1 , wherein each said pressure tank is a coolant tank. 
   
   
       4 . A sun tracking system as claimed in  claim 1 , wherein the control system further comprising:
 a pressure differential driven device, for providing a pull force or a push force according to the pressure difference; and   an adjusting structure, for adjusting the orientation of the solar panel with the pull or push force provided from the pressure differential driven device.   
   
   
       5 . A sun tracking system as claimed in  claim 2 , further comprising:
 a pressure valve, coupled to at least one of the pipes for adjusting the respective pressure.   
   
   
       6 . A pressure differential sun tracking method for a solar panel, said method comprising:
 detecting a first pressure inside a first pressure tank associated with a first side of the solar panel;   detecting a second pressure inside a second pressure tank associated with a different, second side of the solar panel;   determining a pressure difference between the detected first and second pressures; and   adjusting an orientation of the solar panel based on the determined pressure difference.