JPS5546324A - Liquid fuel combustion device - Google Patents

Abstract

PURPOSE: To prevent the accumulation of soot at each part within the combustion chamber while restricting the generation of yellow flame and soot caused by the primary combustion by obtaining a mixture of fuel gas and air at the best ratio by regulating the aperture of the flame piloting baffles.

CONSTITUTION: Combustion chamber 9 and 10 are divided into the primary combustion chamber 9 and the secondary chamber 10 respectively by the narrows 12. Primary air is fed to the primary combustion chamber thru the primary air feed part 3, while the secondary air is fed to the secondary combustion chamber thru the secondary air feed part 4. Flame piloting baffles 13 are established at a position close to a part 3a of the primary air feed part, and the air blown out of the air feed port 3a hits against the baffles 13 where its blow direction is deviated. At this time, a part of the primary air is used for preliminary mixing while its remainder is used for the primary combustion. Combustion gas being carburetted is fed to the secondary combustion chamber from the porous body 1 and there a complete combustion is performed. As for the aperture A between the flame piloting baffles, less than 80% of the most wide size of the combustion chamber is considered to be the optimum.

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