Fireplace burner apparatus

F - Mech Eng,Light,Heat,Weapons – 23 – D

Patent

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Details

F23D 14/84 (2006.01) F21H 5/00 (2006.01) F23D 14/46 (2006.01) F24C 3/02 (2006.01) F24C 3/08 (2006.01)

Patent

CA 2227393

An improved fireplace assembly is described having a folded sheet metal burner manifold divided into three regions, being an upper burner, a lower burner and an intermediate communicating riser. This single manifold chamber is provided with two separate gas inlets, each of which may deliver a different primary air to fuel mix suitable for use with an array of burner ports and an associated set of simulated logs to create different sizes and shapes of flames, or flame patterns. The flame patterns generate hot exhaust gases which heat portions of the simulated logs to glow. The burner ports used in the assembly to generate suitably attractive flame displays may include large or non-circular apertures or slots having local reinforcement to resist deformation of those apertures.

L'objet de la présente invention est un ensemble foyer amélioré ayant une tubulure en tôle métallique pliée divisée en trois zones, une zone supérieure, une zone inférieure et un conduit vertical intermédiaire. Cette chambre de tubulure comporte deux admissions de gaz distinctes, chacune pouvant fournir un mélange air-combustible différent qui peut être utilisé avec une série d'orifices de combustion, et un jeu correspondant de bûches simulées pour créer des flammes de grosseurs et de formes différentes. Grâce à la configuration des flammes, les gaz d'échappement chauds élèvent la température de certaines parties des bûches pour les porter à incandescence. Les orifices de combustion utilisés pour produire des flammes suffisamment conformes à celle d'un foyer réel peuvent comprendre des ouvertures grandes ou non-circulaires, ou des fentes, avec renforcement local pour plus de résistance à la déformation.

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