Gas burner, in particular for a cooking top for household use

Abstract

A gas burner is provided herein. The gas burner includes a base having a Venturi element adapted to receive a gas from an injector and a duct configured to supply an air-gas mixture to said burner. A burner body is associated with the base and has a hole for passage of the air-gas mixture from the duct. A flame divider is associated with the burner body and includes a plurality of apertures to allow the air-gas mixture to exit. The base is made from a sheet that is shaped by deep drawing.

1 . A gas burner for a cooking top comprising:
 a base having a Venturi element adapted to receive a gas from an injector and a duct configured to supply an air-gas mixture to said burner;   a burner body associated with the base having a hole for passage of the air-gas mixture from the duct; and   a flame divider associated with the burner body and including a plurality of apertures to allow the air-gas mixture to exit, wherein the base is made from a sheet that is shaped by deep drawing.   
     
     
         2 . The burner according to  claim 1 , wherein the base is made from aluminized sheet metal. 
     
     
         3 . The burner according to  claim 2 , wherein the base comprises a first half shell and a second half shell made from a sheet metal and joined together. 
     
     
         4 . The burner according to  claim 1 , wherein the sheet includes a metallic material and is suitably shaped by deep drawing. 
     
     
         5 . The burner according to  claim 1 , wherein the flame divider is made from a sheet. 
     
     
         6 . The burner according to  claim 1 , wherein the flame divider includes a side wall that retains the apertures in a raised position relative to the cooking top. 
     
     
         7 . The burner according to  claim 6 , wherein a side wall height is between 10 mm and 20 mm. 
     
     
         8 . The burner according to  claim 7 , wherein the burner body comprises a flank having a height which is essentially close to the side wall height so that the coupling between the burner body and the flame divider will ensure proper sealing and will prevent the air-gas mixture from escaping sideways, wherein the flank of the burner body and the side wall of the flame divider are arranged substantially side by side in an operating condition of the burner. 
     
     
         9 . The burner according to  claim 1 , wherein the flame divider is microperforated to generate a carpet flame, the apertures having a diameter which is substantially equal to or less than the thickness of the sheet. 
     
     
         10 . The burner according to  claim 1 , wherein the base comprises at least one air intake allowing entry of a primary air, wherein the at least one air intake is disposed adjacent to the injector and upstream of the Venturi element. 
     
     
         11 . The burner according to  claim 10 , wherein the base comprises a seat adapted to house the injector or a terminal portion of a tube for supplying gas to the injector, wherein the seat is positioned upstream of the at least one air intake. 
     
     
         12 . The burner according to  claim 1 , wherein the base comprises at least one bracket for associating at least one ignition spark plug and at least one thermocouple with the burner. 
     
     
         13 . The burner according to  claim 12 , wherein the burner body comprises a pair of first openings and the flame divider comprises a pair of second openings adapted to allow the passage of the at least one ignition spark plug and the at least one thermocouple. 
     
     
         14 . The burner according to  claim 1 , wherein the Venturi element is arranged substantially horizontally such that its axis is substantially orthogonal to an axis of the burner. 
     
     
         15 . A cooking top having a gas burner, the gas burner comprising:
 a base having a Venturi element adapted to receive a gas from an injector and a duct configured to supply an air-gas mixture to said burner;   a burner body associated with the base having a hole for passage of the air-gas mixture from the duct; and   a flame divider associated with the burner body and including a plurality of apertures to allow the air-gas mixture to exit, wherein the plurality of apertures have a diameter that is substantially equal to or less than the thickness of the base.