Abstract: Gas burner, particularly for household cooking appliances, with an horizontal or vertical gas supply conduit (1), a burner body with one more flame crowns, an horizontal or vertical Venturi (4), a nozzle (5) to inject the gas flow from said gas conduit into said Venturi pipe and, means to provide the primary air flow which include a tubular conduit which is coaxial and placed outside said gas conduit, and an opening to allow the gas flow, placed between said nozzle and the inlet of the Venturi pipe. The coaxial conduit draws the respective air flow from a zone inside the body of said cooking appliance, and said opening allows the passage of the respective primary air flow sucked and coming from over the appliance top surface (12). In order to stir the primary air flow passing through said coaxial conduit, a plurality of radial wings (10A) is arranged, said wings being shaped either planar or helical, and being connected on the outer surface of said gas supply conduit.

Abstract: The invention relates to a burner for gas-fired cooking appliances, with a structure comprised of: a body (10) defining a chamber (12) within which an injector (14) inputs the gas which, upon mixing with air, forms the gas-air combustible mixture; a ring (16) positioned over the body and provided with a periphery along which are arranged the combustible mixture outlet ports (18), and a circular plate (20) that closes the top of the burner. At least the burner ring (16) is made of a metal or a metal alloy and is coated with a thin layer of material having catalytic activity, which may be coated on a catalyst precursor porous support substrate.

Abstract: The present invention refers to a gas burner (16), in particular a gas burner for a cooktop, comprising a plurality of burning portions (40, 42, 44). A gas burner according to the present invention comprises a plurality of burning portions (40, 42, 44) adapted to receive a gas flow from gas supply means (20, 30, 36) that comprise injector means (20) adapted to eject a gas flow diverging along the flow direction (10) to define a spreading angle Y. The gas burner is characterized in that gas-flow adjusting means (24, 25) are provided for modifying said spreading angle Y such that said gas flow is enabled to supply one or more of said plurality of burning portions (40,42, 44) depending on the adjustment of said spreading angle Y.

Abstract: A gas burner with a plurality of concentric flame crowns including a burner body, a first central burner, and a second outer annular burner surrounding the first central burner, where the first central burner includes a first diffusion chamber and a first gas injector configured to inject a gas flow into a first Venturi pipe which is configured to convey the gas flow to the first diffusion chamber, and where the second outer annular burner includes two separate outer diffusion chambers and two distinct outer injectors each of which is configured to inject a gas flow into one of two outer Venturi pipes which are configured to convey the gas flows to the two separate outer diffusion chambers, and where the first gas injector, the first Venturi pipe, and the two outer Venturi pipes are substantially horizontally oriented.

Abstract: A gas cooking appliance (1) comprises a support frame (2), at least one burner (3) rigidly connected to said support frame, and a gas feeding circuit (4) to feed gas to the burner, wherein at least one of the following components of the gas cooking appliance is made of a thermosetting or thermoplastic material: •at least one burner body, being part of said at least one burner; •a spark plug body, being part of said at least one burner; •at least one gas connection pipe, being part of said gas feeding circuit, to feed gas to said at least one burner; •a gas rail, being part of said gas feeding circuit, connected to said at least one gas connection pipe; •a connection member, being part of said gas feeding circuit, for connecting the gas rail to an external feeding pipe; and •at least part of the support frame.

Abstract: Gas burner provided with a plurality of concentric flame crowns, and comprising a first central burner to supply a peripheral flame ring, a second annular burner surrounding the central burner at a defined distance and able of supplying at least a respective peripheral ring, a burner body apt to be mounted on the surface of a cooking hob, a first gas inlet in communication with the body, a first vertical gas injector, the central burner being provided with a first chamber for the diffusion of the air/gas mixture, a second gas inlet in communication with the body, wherein the second annular burner is provided with two separate chambers for the diffusion of the mixture, wherein the second gas inlet is in communication with the two separate chambers through suitable injection and conveying means, which comprise two distinct injectors in communication with the second gas inlet, and two respective horizontal Venturi pipes each of which being able of supplying with the air/gas mixture a respective of the two diffus

Abstract: Gas burner provided with a plurality of concentric circular flame crowns, with a burner body apt to be mounted on the surface of a cooking plate, a burner body apt to be mounted on the surface of a cooking plate and provided with a first chamber for the diffusion of the air/gas mixture, and whose top is closed by a first cover, a second outer annular burner surrounding said central burner, a first gas inlet in communication with said body, a first gas injector able of injecting a gas flow into a respective Venturi pipe to said first central burner, a second gas inlet in communication with said body, wherein said second annular burner is provided with two separate diffusion chambers, and whose top is closed by a second cover, wherein said second gas inlet is in communication with said two separate chambers which are not in communication to each other, two distinct injectors connected with said second gas inlet and placed on the same end position of said second gas inlet, two respective horizontally oriented Ve

Abstract: Gas burner, particularly for household cooking appliances, with an horizontal or vertical gas supply conduit (1), a burner body with one more flame crowns, an horizontal or vertical Venturi (4), a nozzle (5) to inject the gas flow from said gas conduit into said Venturi pipe and, means to provide the primary air flow which include a tubular conduit which is coaxial and placed outside said gas conduit, and an opening to allow the gas flow, placed between said nozzle and the inlet of the Venturi pipe. The coaxial conduit draws the respective air flow from a zone inside the body of said cooking appliance, and said opening allows the passage of the respective primary air flow sucked and coming from over the appliance top surface (12). In order to stir the primary air flow passing through said coaxial conduit, a plurality of radial wings (10A) is arranged, said wings being shaped either planar or helical, and being connected on the outer surface of said gas supply conduit.

Abstract: The present invention refers to a gas burner (16), in particular a gas burner for a cooktop, comprising a plurality of burning portions (40, 42, 44). A gas burner according to the present invention comprises a plurality of burning portions (40, 42, 44) adapted to receive a gas flow from gas supply means (20, 30, 36) that comprise injector means (20) adapted to eject a gas flow diverging along the flow direction (10) to define a spreading angle Y. The gas burner is characterized in that gas-flow adjusting means (24, 25) are provided for modifying said spreading angle Y such that said gas flow is enabled to supply one or more of said plurality of burning portions (40,42, 44) depending on the adjustment of said spreading angle Y.

Abstract: Gas burner provided with a plurality of concentric flame crowns, and comprising a first central burner to supply a peripheral flame ring, a second annular burner surrounding said central burner at a defined distance and able of supplying at least a respective peripheral ring, a burner body apt to be mounted on the surface of a cooking hob, a first gas inlet in communication with said body, a first vertical gas injector, said central burner being provided with a first chamber for the diffusion of the air/gas mixture, a second gas inlet in communication with said body, wherein said second annular burner is provided with two separate chambers for the diffusion of said mixture, wherein said second gas inlet is in communication with said two separate chambers through suitable injection and conveying means, which comprise two distinct injectors in communication with said second gas inlet, and two respective horizontal Venturi pipes each of which being able of supplying with said air/gas mixture a respective of said

Abstract: Gas burner, in particular for domestic cooking appliances, comprising a bowl-shaped body (10) associated with a gas injector, a toothed crown (12) with a plurality of first flame ports (13) circumferentially arranged along the periphery of the crown (12) and an upper cap (14) to close the burner top. A peripheral step (15) is formed on at least a part of the external surface of the toothed crown (12) and second flame ports (17) of reduced area are circumferentially provided along the periphery of the crown (12) in such a way that adjacent first flame ports (13) are spaced apart from each other by means of a single second flame port (17) disposed therebetween.

Abstract: The invention relates to a burner for gas-fired cooking appliances, with a structure comprised of: a body (10) defining a chamber (12) within which an injector (14) inputs the gas which, upon mixing with air, forms the gas-air combustible mixture; a ring (16) positioned over the body and provided with a periphery along which are arranged the combustible mixture outlet ports (18), and a circular plate (20) that closes the top of the burner. At least the burner ring (16) is made of a metal or a metal alloy and is coated with a thin layer of material having catalytic activity, which may be coated on a catalyst precursor porous support substrate.

Abstract: Gas burner, in particular for domestic cooking appliances, comprising a bowl-shaped body (10) associated with a gas injector, a toothed crown (12) with a plurality of first flame ports (13) circumferentially arranged along the periphery of the crown (12) and an upper cap (14) to close the burner top. A peripheral step (15) is formed on at least a part of the external surface of the toothed crown (12) and second flame ports (17) of reduced area are circumferentially provided along the periphery of the crown (12) in such a way that adjacent first flame ports (13) are spaced apart from each other by means of a single second flame port (17) disposed therebetween.

Abstract: A gas burner, for example, for domestic cooking appliances, includes a bowl-shaped body associated with a gas injector, a toothed crown with a plurality of flame ports placed over the body, and an upper cap to close the burner top. The burner also has a peripheral grove that is formed on at least a part of the external surface of the toothed crown in order to increase the flame stability.

Abstract: The present invention refers to a gas burner, in particular for domestic cooking appliances, comprising a bowl-shaped body (10) associated with a gas injector (11), a toothed crown (12) with a plurality of flame ports (13) placed over said body, and an upper cap (14) to close the burner top. The burner is characterised in that a peripheral grove (15) is formed on at least a part of the external surface of the toothed crown (12), in order to increase the flame stability.