F - Mech Eng,Light,Heat,Weapons – 22 – B
Patent
F - Mech Eng,Light,Heat,Weapons
22
B
122/43, 158/79
F22B 1/00 (2006.01) F02G 3/00 (2006.01)
Patent
CA 1064385
ABSTRACT OF THE DISCLOSURE A new and improved method and apparatus for burning a hydrocarbon fuel for producing a high pressure thermal vapor stream comprising steam and combustion gases for injecting into a subterranean formation for the recovery of liquefi- able minerals therefrom, wherein a high pressure combustion chamber having multiple refractory lined combustion zones of varying diameters is provided for burning a hydrocarbon fuel and pressurized air in predetermined ratios injected into the chamber for producing hot combustion gases essentially free of oxidizing components and solid carbonaceous parti- cles. The combustion zones are formed by zones of increas- ing diameters up a final zone of decreasing diameter to pro- vide expansion zones which cause turbulence through con- trolled thorough mixing of the air and fuel to facilitate complete combustion. The high pressure air and fuel is injected into the first of the multiple zones where ignition occurs with a portion of the air injected at or near the point of ignition to further provide turbulence and more complete combustion.
290808
Cradeur Robert R.
Krajicek Richard W.
Sperry John S.
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