Fuel fired burners

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

Patent

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Details

F23D 14/58 (2006.01) F23D 14/02 (2006.01)

Patent

CA 2148915

A fuel gas fired premixed burner (1) includes a flame strip (13) having a plurality of through slots (17). Each slot includes a relatively narrow dimension portion (31) that opens stepwise by means of a land (32) into an outlet portion (33) of a substantially constant relatively wide dimension. Under given conditions the burner flame stabilises either at the outer end of the outlet portion (33) (at a relative high heat input range) or on the lands (32) (at a relatively low heat input range) accompanied by reduction of the resonance tendency of the burner over those heat input ranges.

Brûleur à prémélange (1) mis à feu au moyen d'un combustible gazeux et comprenant une rampe de flamme (13) possédant une pluralité de fentes transversales (17). Chaque fente comprend une partie (31) relativement étroite débouchant au niveau d'un épaulement (32) dans une partie de sortie (33) relativement large sensiblement constante. Dans des conditions données, la flamme du brûleur se stabilise soit à l'extrémité extérieure de la partie de sortie (33) (pour une plage d'entrée thermique relativement élevée), soit sur les épaulements (32) (pour une plage d'entrée thermique relativement basse), cela avec une diminution de la tendance à la résonance du brûleur dans ces plages d'entrée thermique.

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