MULTIFUEL HEATING FURNACE Russian patent published in 2013 - IPC F24C1/00 

FIELD: heating.

SUBSTANCE: multifuel heating furnace includes an axisymmetrical housing forming a combustion chamber, the design of which provides for creation of natural draft, a moving piston located in combustion chamber, and fuel supply means. Moving control piston divides the combustion chamber into above-piston and below-piston volumes and is brought into movement with external action; axisymmetrical sprayer is located inside the combustion chamber; combustion chamber design provides for stationary locations of gaseous, liquid and solid fuel supply/loading means.

EFFECT: possibility of simultaneous or alternating combustion of gaseous, liquid and solid fuel; widening control ranges of combustion processes; reducing excess consumption of fuel; reducing the percentage of unreacted hydrocarbons and other hazardous substances; reducing smoke formation in the room, furnace overheating and destruction of the flue gas duct.

7 cl, 4 dwg