High output gas burner and range

Abstract

Embodiments of the invention provide a gas burner comprising a first venturi configured to supply fuel in a substantially horizontal direction and a second venturi configured to also supply fuel along a substantially horizontal direction. A burner bottom may be coupled to the first venturi and the second venturi, and the burner bottom may be configured to direct fuel from the first venturi and second venturi into a burner base positioned above the burner bottom. The burner base may provide an inner annular chamber and an outer annular chamber separated by a dividing wall, and the inner annular chamber may be configured to receive and direct fuel from the first venturi assembly circumferentially about the burner base and the outer annular chamber may be configured to receive and direct fuel from the second venturi assembly circumferentially about the burner base. A burner cap may be coupled to the burner base to provide a fluidic seal between the inner annular chamber and outer annular chamber, and may be configured to produce flame bodies having radial and upward components.

We claim: 
     
         1 . A gas burner comprising:
 a first venturi configured to supply fuel in a substantially horizontal direction;   a second venturi configured to supply fuel in a substantially horizontal direction;   a burner bottom coupled to the first venturi and the second venturi, the burner bottom being configured to direct fuel from the first venturi along a first ramp upwardly and circumferentially in a first direction and further configured to direct fuel from the second venturi along a second ramp upwardly and circumferentially in a second direction;   a burner base positioned above the burner bottom and placed in fluid communication with the burner bottom, the burner base providing an inner annular chamber and an outer annular chamber separated by a dividing wall, the inner annular chamber being configured to receive and direct fuel from the first venturi assembly circumferentially about the burner base and the outer annular chamber being configured to receive and direct fuel from the second venturi assembly circumferentially about the burner base; and   a burner cap coupled to the burner base to provide a fluidic seal between the inner annular chamber and outer annular chamber, the burner cap being configured to distribute fuel from the inner annular chamber to a first plurality of ports positioned about the burner cap at a first radius and configured to distribute fuel from the outer annular chamber to a second plurality of ports positioned about the burner cap at a second radius larger than the first radius.   
     
     
         2 . The gas burner of  claim 1 , wherein a circumferential component of the first direction and a circumferential component of the second direction oppose one another. 
     
     
         3 . The gas burner of  claim 2 , wherein the circumferential component of the first direction is an approximately clockwise direction and the circumferential component of the second direction is an approximately counterclockwise direction. 
     
     
         4 . The gas burner of  claim 2 , wherein the circumferential component of the first direction and the circumferential component of the second direction are substantially concentric with one another. 
     
     
         5 . The gas burner of  claim 1 , wherein the burner base comprises a central cavity formed radially inward from the inner annular chamber and the burner cap comprises a bore extending through the burner cap and formed radially inward from the first plurality of ports, and the bore is configured to be positioned concentrically about the central cavity. 
     
     
         6 . The gas burner of  claim 5 , wherein a gap is formed between the burner base and the burner bottom that is configured to permit ambient air to flow underneath a portion of the burner base, into the central cavity of the burner base, and through the bore of the burner cap to feed the first plurality of ports with secondary air during combustion. 
     
     
         7 . The gas burner of  claim 1 , further comprising an ignition source located within the central cavity of the burner base and configured to provide a spark to light at least the first plurality of ports. 
     
     
         8 . The gas burner of  claim 7 , wherein the burner cap comprises a lighting port positioned radially inward from the first plurality of ports and configured to direct fuel radially inward towards the ignition source. 
     
     
         9 . The gas burner of  claim 1 , wherein the burner cap comprises a plurality of ignition ports positioned radially between the first plurality of ports and the second plurality of ports and configured to be supplied with fuel from the inner annular chamber of the burner base. 
     
     
         10 . The gas burner of  claim 1 , wherein a gas flow rate of the first venturi is controlled by a first valve and a gas flow rate of the second venturi is controlled by a second valve, and the first valve and second valve are configured to be controlled by a single controller. 
     
     
         11 . The gas burner of  claim 1 , wherein the first plurality of ports and the second plurality of ports are configured to produce a turndown ratio of about 60:1 or greater. 
     
     
         12 . The gas burner of  claim 1 , wherein the first plurality of ports and the second plurality of ports are configured to produce 30,000 BTU or greater when ignited. 
     
     
         13 . The gas burner of  claim 1 , wherein the first plurality of ports and the second plurality of ports are configured to transfer about 60% or more of the heat produced to a cooking vessel positioned above the burner cap. 
     
     
         14 . A sealed gas burner comprising:
 a burner bottom configured to receive fuel and oxygen from a fuel source and an oxygen source;   an annular burner base coupled to a portion of the burner bottom and placed in fluid communication with the fuel source and the oxygen source, the annular burner base comprising an inner chamber and an outer chamber to selectively receive fuel and oxygen from the fuel source and the oxygen source; and   a burner cap coupled to the annular burner base comprising a ring of simmering ports positioned above the inner chamber of the annular burner base and an outer ring of burner ports concentric with the ring of simmering ports and positioned above the outer chamber of the annular burner base;   wherein a plurality of simmering ports within the ring of simmering ports are angled to produce a flame body extending radially inward and upward from the burner cap and a plurality of burner ports within the outer ring of burner ports are larger than the simmering ports and are angled to produce a flame body extending radially outward and upward from the burner cap.   
     
     
         15 . The sealed gas burner of  claim 14 , wherein a plurality of radially aligned ignition ports are formed in the burner cap that extend outward from the ring of simmering ports towards the outer ring of burner ports. 
     
     
         16 . The sealed gas burner of  claim 15 , wherein the plurality of radially aligned ignition ports comprises at least one port angled to produce a flame body extending radially inward and upward from the burner cap and at least one port angled to produce a flame body extending radially outward and upward from the burner cap. 
     
     
         16 . The sealed gas burner of  claim 15 , wherein at least two pluralities of radially aligned ignition ports are formed in the burner cap, and the at least two pluralities of radially aligned ignition ports are spaced apart from one another evenly about the burner cap. 
     
     
         17 . The sealed gas burner of  claim 15 , wherein the wherein each port in the plurality of radially aligned ignition ports has a diameter approximately equal to the diameter of the simmering ports. 
     
     
         18 . The sealed gas burner of  claim 14 , wherein the number of ports in the ring of simmering ports and the number of ports in the ring of burner ports is equal. 
     
     
         19 . The sealed gas burner of  claim 14 , wherein the burner cap comprises at least one intermediate ring of burner ports positioned radially outward from and concentric with the ring of simmering ports, the at least one intermediate ring of burner ports comprising ports defined by diameters larger than the diameters of the simmering ports. 
     
     
         20 . The sealed gas burner of  claim 19 , wherein a plurality of ports within the at least one intermediate ring of burner ports are angled to produce a flame body extending radially outward and upward from the burner cap. 
     
     
         21 . The sealed gas burner of  claim 19 , wherein the burner cap comprises a second intermediate ring of burner ports positioned radially outward from and concentric with the first intermediate ring of burner ports and radially inward from the outer ring of burner ports, the second intermediate ring of burner ports comprising ports defined by diameters larger than the diameters of the burner ports in the first intermediate ring of burner ports and smaller than the diameters of the burner ports in the outer ring of burner ports. 
     
     
         22 . The sealed gas burner of  claim 19 , wherein a plurality of radially aligned ignition ports are formed in the burner cap that extend outward from the ring of simmering ports towards the at least one intermediate ring of burner ports, and at least one port in the intermediate ring of burner ports is radially aligned with the plurality of radially aligned ignition ports. 
     
     
         23 . The sealed gas burner of  claim 14 , wherein the burner cap comprises an annular shape with a convex top surface, and the ring of simmering ports is positioned proximate a local minimum height of the convex top surface of the burner cap. 
     
     
         24 . The sealed gas burner of  claim 14 , further comprising an ignition source coupled to an electrical power source, the ignition source being positioned within a central cavity of the burner base. 
     
     
         25 . The sealed gas burner of  claim 24 , wherein the burner cap comprises a lighting port positioned radially inward from the ring of simmering ports and is configured to produce a flame body extending radially inward and upward from the burner cap, towards the ignition source. 
     
     
         26 . The sealed gas burner of  claim 24 , wherein the ignition source comprises a lower electrode and an upper electrode removably coupled to the lower electrode. 
     
     
         27 . The sealed gas burner of  claim 26 , wherein the lower electrode comprises a male connection and the upper electrode comprises a female connection configured to receive a portion of the male connection. 
     
     
         28 . The sealed gas burner of  claim 26 , wherein the lower electrode is coupled to the burner bottom and the upper electrode is coupled to the annular burner base. 
     
     
         29 . The sealed gas burner of  claim 14 , wherein the ring of simmering ports are capable of sustaining a heat output of about 500 BTU. 
     
     
         30 . The sealed gas burner of  claim 14 , wherein the ring of simmering ports and the outer ring of burner ports are together capable of sustaining a heat output of about 30,000 BTU. 
     
     
         31 . A gas burner comprising:
 a burner base; and   a burner cap positioned above the burner base, the burner cap and burner base collectively defining an inner annular chamber and an outer annular chamber;   wherein the burner cap comprises a first plurality of ports positioned above the inner annular chamber and a second plurality of ports positioned above the outer annular chamber, the gas burner being configured to operate at a first heat output setting where the first plurality of ports are configured to output flames and at a second heat output setting at least about sixty times greater than the first heat setting where the first plurality of ports and the second plurality of ports are configured to simultaneously output flames.