Dual ring burner ovni

Abstract

There is disclosed a toroidal double ring flame burner comprising a toroidal cover with a lower wall and a burner body comprising a mixing tube which receives and emits a combustible-air pre-mixture; a mixing chamber which receives said pre-mixture and homogenizes it, creating a combustible-air mixture; a distribution channel for distributing the mixture; an inner crenellated wall and an outer crenellated wall, said crenellated walls are separated by the distribution channel and with at least main combustion ports and secondary combustion ports; over the inner crenellated wall, at least one inner barrier rail with combustion ports of inner barrier rail; over the outer crenellated wall, at least one outer barrier rail with combustion ports of outer barrier rail; over the outer crenellated wall at least one outer barrier rail with outer barrier rail combustion ports.

1 . A double ring toroidal flame burner comprising:
 a toroidal cover lid with a lower wall and a burner body comprising:   a mixture tube which receives and emits a combustible-air pre-mixture;   a mixture chamber which receives said pre-mixture and homogenizes it, creating a combustible-air mixture;   a distribution channel for distributing the mixture;   an inner crenellated wall and an outer crenellated wall, said crenellated walls separated by the distribution channel and with at least main combustion ports and secondary combustion ports; over the inner crenellated wall, at least one inner barrier rail with inner barrier rail combustion ports; over the outer crenellated wall, at least one outer barrier rail with outer barrier rail combustion ports; and   a stability and flame transfer chamber with at least one wall which divides the distribution channel from the inner crenellated wall until the outer crenellated wall, the at least one wall of the transfer chamber presents a central section and lateral sections, a first lateral section being in connection with at least one peripheral crenel for inner stability and transfer and a second lateral section being in connection with at least one peripheral crenel for outer stability and transfer; on said at least one peripheral crenel for stability and transfer, inner or outer, a radial combustion port for flame transfer is found.   
     
     
         2 . The burner according to  claim 1 , characterized by said inner and outer crenellated walls are concentric. 
     
     
         3 . The burner according to  claim 1 , wherein the outer crenellated wall comprises three sections, a first section substantially vertical which extends from a back wall of the distribution channel, a second section inclined outwardly and upwardly from the highest part of the first substantially vertical section and a third curved section which extends outwardly and downwardly from the highest point of the second inclined section, said third curved section extends up to a point under the inner surface of the back wall of the distribution channel, said third curved section presents at least one circumferential groove which feeds the flame with secondary air. 
     
     
         4 . The burner according to  claim 1 , wherein the inner crenellated wall comprises four sections, a first section substantially vertical which extends from the back wall of the distribution channel, a second section inclined outwardly and upwardly from the highest part of the first substantially vertical section, a third inclined section which extends outwardly and downwardly from the highest point on the second section inclined up to a point which is above the highest point of the first section and a fourth vertical section which extends downwardly from the lowest point of the third inclined section and up to a point above the highest point of the first section. 
     
     
         5 . The burner according to  claim 3 , wherein near the exit of the mixture tube the inner barrier rail is found, comprising a first circumferential groove concentric to the distribution channel in the second section of said inner crenellated wall which is found in fluid communication solely with a pair of main inner peripheral combustion ports on the sides of said first groove, said first circumferential groove presents a wall which avoids the direct ingress of the combustible-air mixture into said inner barrier rail, said first circumferential groove, presents a plurality of radial grooves which come out of the inner crenellated wall, forming a plurality of inner barrier rail combustion ports through which a part of the combustible air mixture is ignited once it has lost energy in said inner barrier rail, said outer barrier rail comprises a second circumferential groove with two ends, concentric to the distribution channel thereby forming a wall which separates the second circumferential groove from the distribution channel; along the length of said second circumferential groove a radial groove is found at each end of said circumferential groove, as well as at least one radial groove between said radial grooves, which come out of the outer crenellated wall, forming a plurality of combustion ports for an outer barrier rail; a plurality of communication grooves which communicate the second circumferential groove with the distribution channel, the plurality of combustion ports for an outer barrier rail are found unaligned with the communication grooves. 
     
     
         6 . The burner according to  claim 1 , wherein the lower surface of the body of the burner presents a plurality of concentric circumferential ribs and axial ribs which serve as a reinforcement for said body of the burner. 
     
     
         7 . The burner according to  claim 6 , characterized because set over at least two of the plurality of axial ribs a protrusion is found which produces a separation between the plane of the cover of burners and the lower surface of the body of the burner. 
     
     
         8 . The burner according to  claim 1 , wherein the lower wall of the toroidal cover lid defines an upper limit for the mixture chamber;
 the toroidal cover lid comprises a curved upper surface with an upper point in close proximity to the outer end of said cover lid, a first curvature which extends from the upper point towards the outer end, and a second curvature which extends from the upper point towards an inner end, the radius of the second curvature being greater than that of the first curvature; the outer end extends above the inner end of the cover lid; the lower surface is joined with the inner end by means of a rounded bevel, the outer end presents a protuberance with a substantially horizontal plane lower end, which itself joins with the lower surface by means of a bevel.   
     
     
         9 . The burner according to  claim 1 , wherein the inclination of the main peripheral combustion ports is found within a range between approximately 20° to approximately 49°. 
     
     
         10 . The burner according to  claim 9 , wherein the inclination of the main peripheral combustion ports is found within a range between approximately 25° to approximately 44°. 
     
     
         11 . The burner according to  claim 10 , wherein the inclination of the main peripheral combustion ports is found within a range between approximately 31° to approximately 37°. 
     
     
         12 . The burner according to  claim 1 , wherein the inclination of the secondary peripheral combustion ports is found within a range between approximately 20° to approximately 40°. 
     
     
         13 . The burner according to  claim 12 , wherein the inclination of the secondary peripheral combustion ports is found within a range between approximately 27° to approximately 33°. 
     
     
         14 . The burner according to  claim 9 , wherein the inclination of the secondary peripheral combustion ports is to be approximately 30°. 
     
     
         15 . The burner according to  claim 1 , wherein said radial combustion port for flame transfer presents an inclination angle within a range between approximately 60° to approximately 120°. 
     
     
         16 . The burner according to  claim 15 , wherein said radial combustion port for flame transfer presents an inclination angle within a range between approximately 80° to approximately 100°. 
     
     
         17 . The burner according to  claim 16 , wherein said radial combustion port for flame transfer presents an inclination angle of approximately 90°. 
     
     
         18 . The burner according to  claim 1 , wherein the height of the peripheral crenels for stability and transfer is substantially lesser than the height of the crenels which form the main inner and outer peripheral combustion ports, in such a way that a free space is formed between the toroidal cover lid and said peripheral crenels for stability and transfer. 
     
     
         19 . The burner according to  claim 1 , wherein between the combustion ports for stability and transfer of flame an exit port from the chamber of stability and transfer is found. 
     
     
         20 . A household appliance comprising a support surface and a double ring toroidal flame burner according to  claim 1 .