Stoichiometrically operated oil burner - has air blown into chamber to create cyclone for drawing fuel oil through needle valve into chamber

摘要

Liq. fuel (31) and air (40) for combustion are fed in a constant ratio into a mixing and vaporisation chamber (43) in which the air forms a cyclone creating suction which draws fuel (31) into a chamber via the axis of the cyclone. The burner power is pref. controlled exclusively by the metering of air into a chamber, esp. to create a reduction in pressure of -0.04 to -0.1 bar at the fuel inlet in chamber (43). Fuel is pref. fed into chamber as a steam 0.5-0.2 mm dia. The air is pref. fed at 40-250 m/second into the chamber at 90 deg. to the fuel stream. The burner can have a chamber with 3-20, esp. 12, inlet holes or slots for air on its periphery.