High efficiency stove

Abstract

A high efficiency stove has a chamber attached to a base. The chamber is liquid tight and holds liquid fuel such as alcohol within. At least one heat conductor is provided to capture heat and redirect it back into the fuel to increase the gasification process required for combustion. This heat is normally lost in conventional stoves. This greatly increases the efficiency of the stove and allows small size stoves to have a heat output superior to conventional stoves. In one embodiment, removable heat conductors are used to adjust heat output. In another embodiment an adjustment sleeve is used that effectively changes the height of the chamber to adjust output. Another embodiment utilizes an outer sleeve that rotates to open and close at least one airflow opening provided for that purpose. One embodiment includes cooking support legs that allows a user to use a pot or pan.

1 . A high efficiency stove comprises:
 a base;   a chamber defining a fuel containing portion adapted to hold fuel;   said chamber having a bottom edge;   said bottom edge being joined to an upper portion of said base wherein said fuel containing portion is sealed to prevent leakage of said fuel; and   at least one heat conductor adapted to fit within said chamber.   
     
     
         2 . The high efficiency stove of  claim 1  wherein said at least one heat conductor is adapted to transfer heat from a flame to said fuel. 
     
     
         3 . The high efficiency stove of  claim 2  wherein the amount of heat transferred by said at least one heat conductor is adjustable by a user. 
     
     
         4 . The high efficiency stove of  claim 1  wherein said at least one heat conductor is adapted to extend past an upper edge of said chamber. 
     
     
         5 . The high efficiency stove of  claim 1  wherein said at least one heat conductor is removable. 
     
     
         6 . The high efficiency stove of  claim 1  further comprising an adjusting sleeve telescopically fitting over said chamber wherein said adjusting sleeve effectively changes the height of said chamber. 
     
     
         7 . The high efficiency stove of  claim 6  wherein said at least one heat conductor is permanently affixed to said base. 
     
     
         8 . The high efficiency stove of  claim 6  wherein said adjusting sleeve is adapted to selectively move between a maximum position which is at least as high as a top of said at least one heat conductor and a minimum position which is generally the same height as an upper edge of said chamber. 
     
     
         9 . The high efficiency stove of  claim 1  further comprising:
 an outer sleeve concentrically disposed over said chamber wherein said outer sleeve is rotatable; and 
 at least one air adjustment opening in a side portion of said chamber and a corresponding side portion of said outer sleeve whereby said outer sleeve is rotatably adjustable between a maximum airflow position and a no airflow position. 
 
     
     
         10 . The high efficiency stove of  claim 9  further comprising a primer tray disposed around an outer portion of said chamber wherein a flammable fluid is held therein. 
     
     
         11 . The high efficiency stove of  claim 10  further comprising at least three cooking leg supports removeably attached to said base wherein said cooking leg supports are adapted to support a cooking pan over said high efficiency stove. 
     
     
         12 . The high efficiency stove of  claim 9  wherein said at least one heat conductor is substantially straight with a curved end whereby insertion and removal is enhanced. 
     
     
         13 . The high efficiency stove of  claim 1  further comprising at least one heat conductor sleeve disposed on an inner surface of said chamber whereby said at least one heat conductor sleeve is adapted to provide support for said at least one heat conductor. 
     
     
         14 . The high efficiency stove of  claim 10  wherein said at least one heat conductor is generally u-shaped. 
     
     
         15 . The high efficiency stove of  claim 1  wherein said chamber is adapted to contain a liquid fuel. 
     
     
         16 . The high efficiency stove of  claim 15  wherein said liquid fuel is alcohol. 
     
     
         17 . The high efficiency stove of  claim 1  further comprising a generally central support disposed on a bottom portion of said chamber wherein a portion of said at least one heat conductor is adapted to fit within said central support. 
     
     
         18 . The high efficiency stove of  claim 17  wherein said at least one heat conductor is generally m-shaped. 
     
     
         19 . The high efficiency stove of  claim 1  wherein said at least one heat conductor is made of aluminum. 
     
     
         20 . The high efficiency stove of  claim 1  wherein said at least one heat conductor is made of copper. 
     
     
         21 . The high efficiency stove of  claim 9  wherein said outer sleeve is adapted to selectively move between a maximum position and a minimum position.