Gas-fired tunnel oven
AssigneeSveba-Dahlen AB
InventorJan-Olof Johansson
Life of this patent
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Abstract
An indirectly heated, gas-fired tunnel oven is provided having upper and lower heating sections with upper and lower heating means defining a baking chamber between them. Each heating section has an associated gas-fired burner arranged to provide heated gases to each heating means through ducts. At least one section comprises a fan arranged downstream at least one heating means, which fan is arranged to drive a flow of heated gases through at least one section and a duct arranged to recirculate gases from the fan to a location upstream the heating means.
Claims20
Gas-fired tunnel oven comprising upper and lower heating sections with upper and lower heating means defining a baking chamber between them, wherein each section has an associated gas-fired burner arranged to provide heated gases to each heating means through ducts, wherein at least one section comprises a fan arranged downstream at least one heating means, said fan being arranged to drive a flow of heated gases from the burner through at least one section and through a recirculation duct arranged to recirculate gases from the fan to a location upstream the heating means, wherein the burner comprises a separating section, such that recirculated gas is ejected outside said separating section and combustion gases are ejected inside said separating section, and wherein the separating section is annularly formed.
Dependencies are inferred from the claim text.