AUTONOMOUS HEAT GUN Russian patent published in 2017 - IPC F24H3/04 

FIELD: heating.

SUBSTANCE: result is achieved by the proposed autonomous heat gun comprising a cylindrical body, inside of which at the air flow coaxially mounted fan with electric motor, the burner with an injector is connected to the supply pipeline, a cylindrical combustion chamber, combined with a heat exchanger is connected to the injector, the annular heat chamber cleaning nozzles filled with granules of metallurgical pumice made of metallurgical slag. The surface of the cylindrical combustion chamber is provided with horizontal rectangular corrugations, forming horizontal rectangular slot, into which partially recessed thermoelectric units consist of rectangular inserts, inside which are placed the series consisting of spaced parallel thermionic converters, each of which is a pair of parallel wire segments, formed of different metals welded together at the ends, thermoelectric units are interconnected in pairs and an electric bridge capacitor, forming thermoelectric sections are also interconnected in series via electric capacitors, forming the thermoelectric unit connected with current, inverter, battery, and the electric motor of the cooler.

EFFECT: increase in heat transfer.

8 dwg