F - Mech Eng,Light,Heat,Weapons – 23 – C
Patent
F - Mech Eng,Light,Heat,Weapons
23
C
158/3
F23C 1/08 (2006.01) F23D 11/40 (2006.01)
Patent
CA 1051336
ABSTRACT A liquid and/or gaseous fuel is burned in a tubular combustion chamber which has at least one baffle wall there- in with a central aperture therethrough, comprises directing the fuel into the combustion chamber in a stream adjacent the baffle so as to cause it to flow through the aperture of the baffle and directing combustion air into the combustion chamber around and substantially parallel to the fuel stream so as to cause a portion of it to be directed against the baffle plate and whirl around adjacent the aperture and a further portion to pass directly through the aperture and into the whirling stream so as to provide a turbulent air stream which intermixes with the fuel both downstream and upstream of the baffle, igniting the fuel and air as it inter- mixes, and directing a separate combustion air stream into the intermixed fuel and combustion air on the opposite downstream side of the baffle. In addition, the secondary combustion air supply may be admitted upstream of the baffle and the air streams may advantageously be directed radially and tangentially inwardly. The burner construction includes radially spaced inner and outer tubular combustion walls which have an intermediate space therebetween which is sup- plied with combustion air and which is directed into the combustion chamber within the inner wall on a downstream side of a baffle plate which extends across the combustion chamber and has a central aperture therethrough and which further includes a fuel supply means for directing the fuel centrally into the combustion chamber on one side of the baffle plate so as to cause it to flow through the opening thereof and to be intermixed with combustion air which is also directed substantially parallel to and around the fuel flow stream and against one side of the baffle to cause a part of the air to dam up behind the baffle and flow in a whirling stream with the remaining portion in whirling eddies directed into the fuel which are subsequent- ly intermixed by the supply of secondary combustion air downstream of the baffle from the space between the walls radially into the whirling combustion gases. 1a.
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