F - Mech Eng,Light,Heat,Weapons – 23 – D
Patent
F - Mech Eng,Light,Heat,Weapons
23
D
F23D 11/44 (2006.01) F23C 9/00 (2006.01) F23D 11/00 (2006.01) F23D 11/40 (2006.01)
Patent
CA 2090163
ABSTRACT OF THE DISCLOSURE. To provide for complete gasification of liquid fuel admitted by an atomizing nozzle (11, 13), located axially with respect to an air inlet opening (55) in an inlet diaphragm, a deflection element (31) is located spaced from the air inlet in order to deflect the mixture of air, recirculated combustion gases and gasified fuel in approximately radial direction. A flame tube (21) surrounds the burner, with space, to form a first (I) recirculation path for hot gases, deflected by the deflection element back towards the inlet of a recirculation space formed between the air inlet and the deflection element. In accordance with a feature of the invention, a second recirculation path (II) extends through openings (57, 61, 59) in the recirculation element, into the deflection element itself which, preferably, is a hollow, essentially conical deflection structure directing the flame which forms radially outwardly from the flame tube. This will cause suction to arise with respect to the interior of the deflection element (31), to re- circulate gases back into the gasification space (66) between the air inlet and the deflection element, and also heating the deflection element. Thus, all structural elements, such as an air inlet diaphragm (35), the deflection element (31), optionally a gasifier tube (17) and the flame tube (21) are subjected to recirculated hot combustion gases, so that no drops or droplets from the atomizing burner (133 can adhere, and burn on or coke on the structural elements. The complex combustion and stream relationships, caused by the braking or back-damming effect of the recirculation element, and eddies and turbulences arising from over-pressure air supplied to the air inlet (55), result in effectively complete gasification of fuels within the gasification space (66) even if no real gasifier is present. The flame, expanding in radial direction due to the deflection element, burns blue, with practically no NOx formation, and effectively devoid of unburned hydrocarbons. -31-
Boner Heinrich
Fullemann Jorg
Fullemann Patent Ag
Kirby Eades Gale Baker
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