Patent ID: 8146488

Claim:
A food cooking oven for use in commercial foodservice and mass-catering applications, provided with a steam generator, said food cooking oven comprising: a boiler; a gas burner configured to burn an air/gas mixture; a fan configured to generate a forced air flow and blow the forced air flow into said burner via a delivery conduit; a gas injector associated with said delivery conduit, and being configured to inject gas into the forced air flow; an outer conduit branching out from said burner and configured to convey through said boiler flue gases produced by and issuing from said gas burner; wherein said gas burner comprises: an assembly having a first inner, cylindrically shaped body, arranged to receive the forced air flow mixed with the injected gas, and a second outer body configured and arranged so as to accommodate said first inner body therewithin and having a surface configured to burn the air/gas mixture, a pre-mixing region disposed in a hollow gap created between said first inner body and said second outer body to exalt mixing of the forced air flow with the injected gas so as to form the air/gas mixture to be burned.