Abstract: A gas burner with multiple rings of main flames includes an injector holder structure; a central distribution chamber within a central flame divider element that is rigid with the injector holder structure, generates a central ring of flames, and is closed by a circular cover; an annular distribution chamber having an annular flame divider element that is rested on the injector holder structure, generates at least one ring of main flames concentric with the central ring of flames, is separated from the central distribution chamber by an annular space, and is closed by an annular cover; and first and second venturi conduits that are substantially horizontal and parallel, are situated in the injector holder structure outline, and have inlet ends facing injectors associated with a wall of the injector holder structure and outer ends opening into cavities communicating with the central distribution chamber and with the annular distribution chamber.

Abstract: A gas burner includes an injector holder fixable to the sheet metal of a cooking hob and provided on its base with an injector, a burner body associated with the injector holder and defining with the sheet metal a circumferential passage for the entry of primary air intended to form the combustion mixture with the gas leaving the injector, at least one cover, formed from a single piece of drawn sheet metal, positioned on the burner body and defining therewith at least one radial venturi effect chamber, wherein the cover includes a circumferential flange provided with a plurality of elongated apertures of essentially vertical extension, for passage of the combustion mixture which generates a ring of main flames.

Abstract: A gas burner with multiple rings of main flames includes an injector holder structure; a central distribution chamber within a central flame divider element that is rigid with the injector holder structure, generates a central ring of flames, and is closed by a circular cover; an annular distribution chamber having an annular flame divider element that is rested on the injector holder structure, generates at least one ring of main flames concentric with the central ring of flames, is separated from the central distribution chamber by an annular space, and is closed by an annular cover; and first and second venturi conduits that are substantially horizontal and parallel, are situated in the injector holder structure outline, and have inlet ends facing injectors associated with a wall of the injector holder structure and outer ends opening into cavities communicating with the central distribution chamber and with the annular distribution chamber.

Abstract: A gas burner for cooking equipment, such as a cooking hob, includes a supporting cup-shaped injector holder fixable in a position corresponding to an opening in the cooking hob in which the burner is to be installed, a flame divider resting on the cup-shaped support to define, with its outer circumferential rim and with the surface of the cooking hob in which the burner to be installed, a passage for the entry of a flow of primary air, a sheet metal cover removably resting on the flame divider and defining therewith a distribution chamber for the combustion mixture of gas and primary air, wherein the distribution chamber is bounded by a raised band, in which radial slots are provided for passage of the combustion mixture, the cover having apertures facing the radial slots and cooperating therewith to define the inclination of the flames emerging from the apertures.

Abstract: A gas burner includes an injector holder fixable to the sheet metal of a cooking hob and provided on its base with an injector, a burner body associated with the injector holder and defining with the sheet metal a circumferential passage for the entry of primary air intended to form the combustion mixture with the gas leaving the injector, at least one cover, formed from a single piece of drawn sheet metal, positioned on the burner body and defining therewith at least one radial venturi effect chamber, wherein the cover includes a circumferential flange provided with a plurality of elongated apertures of essentially vertical extension, for passage of the combustion mixture which generates a ring of main flames.

Abstract: A gas burner for cooking equipment, such as a cooking hob, includes a supporting cup-shaped injector holder fixable in a position corresponding to an opening in the cooking hob in which the burner is to be installed, a flame divider resting on the cup-shaped support to define, with its outer circumferential rim and with the surface of the cooking hob in which the burner to be installed, a passage for the entry of a flow of primary air, a sheet metal cover removably resting on the flame divider and defining therewith a distribution chamber for the combustion mixture of gas and primary air, wherein the distribution chamber is bounded by a raised band, in which radial slots are provided for passage of the combustion mixture, the cover having apertures facing the radial slots and cooperating therewith to define the inclination of the flames emerging from the apertures.