Gas cooking burner with enhanced air entrainment and system and method incorporating same

Abstract

A gas cooking system having a gas cooking burner that includes a gas line, a first gas port coupled to the gas line, and a second gas port disposed downstream from the first gas port, wherein at least one of the first and second gas ports comprises a non-circular geometry adapted to increase air entrainment, the second gas port further being non-rectangular if the first gas port has a circular geometry.

1 . A gas cooking system, comprising: 
 a gas cooking burner, comprising: 
 a gas line;  
 a first gas port coupled to the gas line; and  
 a second gas port disposed downstream from the first gas port, wherein at least one of the first and second gas ports comprises a non-circular geometry adapted to increase air entrainment, the second gas port further being non-rectangular if the first gas port has a circular geometry.  
   
   
   
       2 . The gas cooking system of  claim 1 , wherein the non-circular geometry comprises a lobed opening.  
   
   
       3 . The gas cooking system of  claim 2 , wherein the lobed opening comprises a cross shape.  
   
   
       4 . The gas cooking system of  claim 2 , wherein the lobed opening comprises a cloverleaf shape.  
   
   
       5 . The gas cooking system of  claim 1 , wherein the non-circular geometry comprises a plurality of grouped openings.  
   
   
       6 . The gas cooking system of  claim 5 , wherein at least one of the plurality of grouped openings has a non-circular shape.  
   
   
       7 . The gas cooking system of  claim 1 , wherein the non-circular geometry comprises a triangular opening.  
   
   
       8 . The gas cooking system of  claim 1 , wherein the non-circular geometry comprises a rectangular opening.  
   
   
       9 . The gas cooking system of  claim 1 , wherein the non-circular geometry comprises a square opening.  
   
   
       10 . The gas cooking system of  claim 1 , wherein the non-circular geometry comprises an elliptical opening.  
   
   
       11 . The gas cooking system of  claim 1 , wherein the non-circular geometry comprises a ring shaped opening.  
   
   
       12 . The gas cooking system of  claim 1 , wherein the non-circular geometry comprises an opening having a trip wire.  
   
   
       13 . The gas cooking system of  claim 1 , wherein the non-circular geometry comprises an opening having a chevron.  
   
   
       14 . The gas cooking system of  claim 1 , wherein the non-circular geometry comprises an opening having a daisy nozzle.  
   
   
       15 . The gas cooking system of  claim 1 , wherein the gas cooking burner comprises a venturi section disposed between the first and second gas ports.  
   
   
       16 . The gas cooking system of  claim 15 , wherein the venturi section comprises a converging section.  
   
   
       17 . The gas cooking system of  claim 15 , wherein the venturi section comprises a converging-diverging section.  
   
   
       18 . The gas cooking system of  claim 1 , wherein the gas cooking burner comprises a gas/air temperature differential mechanism adapted to increase a gas/air temperature differential adjacent the first gas port.  
   
   
       19 . The gas cooking system of  claim 18 , wherein the gas/air temperature differential mechanism comprises a gas heating mechanism adapted to heat gas flowing through the gas cooking burner.  
   
   
       20 . The system of  claim 19 , wherein the gas heating mechanism comprises an operationally heated region of the gas cooking system disposed adjacent the gas line, wherein the operationally heated region is adapted to heat in response to operation of the gas cooking system.  
   
   
       21 . The gas cooking system of  claim 18 , wherein the gas/air temperature differential mechanism comprises an air cooling mechanism adapted to decrease an air temperature of air entrained at the first gas port.  
   
   
       22 . The gas cooking system of  claim 21 , wherein the air cooling mechanism comprises an environmental air channel having an inlet to environmental air remote from the gas cooking burner and having an exit adjacent the first gas port.  
   
   
       23 . A method of operating a gas cooking burner, comprising: 
 receiving a gas from a gas feed line;    flowing the gas out through a first gas port for primary air entrainment;    passing the gas into a venturi section; and    exhausting the gas through a second gas port for secondary air entrainment, wherein at least one of the first and second gas ports comprises a non-circular geometry, the second gas port further being non-rectangular if the first gas port has a circular geometry.    
   
   
       24 . The method of  claim 23 , comprising increasing a gas/air temperature differential between gas and air adjacent the first gas port via a gas/air temperature differential mechanism.  
   
   
       25 . The method of  claim 24 , wherein increasing the gas/air temperature differential comprises heating the gas.  
   
   
       26 . The method of  claim 24 , wherein increasing the gas/air temperature differential comprises cooling air entrained at the first gas port.  
   
   
       27 . The method of  claim 23 , wherein passing the gas into a venturi section comprises passing the gas through a converging-diverging section.  
   
   
       28 . The method of  claim 23 , wherein passing the gas into a venturi section comprises passing the gas through a converging section.  
   
   
       29 . A method of manufacturing a gas cooking burner, comprising: 
 providing a venturi section;    positioning a first gas port directing a gas stream into the venturi section; and    disposing a second gas port downstream from the venturi section, wherein at least one of the first and second gas ports comprises a non-circular geometry, the second gas port further being non-rectangular if the first gas port has a circular geometry.    
   
   
       30 . The method of  claim 29 , wherein positioning the first gas port comprises providing the first gas port with the non-circular geometry to increase primary air entrainment.  
   
   
       31 . The method of  claim 29 , wherein disposing the second gas port comprises providing the second gas port with a non-circular, non-rectangular geometry to increase secondary air entrainment.  
   
   
       32 . The method of  claim 29 , comprising providing a gas/air temperature differential mechanism to increase a gas/air temperature differential adjacent the first gas port.  
   
   
       33 . The method of  claim 32 , wherein providing a gas/air temperature differential mechanism comprises coupling a gas heating mechanism to heat gas flowing through the gas cooking burner.  
   
   
       34 . The method of  claim 32 , wherein providing a gas/air temperature differential mechanism comprises coupling an air cooling mechanism adapted to decrease an air temperature of air entrained at the first gas port.  
   
   
       35 . A gas cooking burner, comprising: 
 means for flowing gas between a first gas port and a second gas port downstream from the first gas port; and    means for non-circular exhaustion of a flow stream into air from at least one of the first and second gas ports, the second gas port being non-rectangular if the first gas port has a circular geometry.    
   
   
       36 . The gas cooking burner of  claim 35 , comprising means for increasing a gas/air temperature differential adjacent the first gas port.  
   
   
       37 . A gas cooking system, comprising: 
 a gas cooking burner, comprising: 
 a gas line;  
 a first gas port coupled to the gas line; and  
 a second gas port disposed downstream from the first gas port, wherein the second gas port comprises a non-circular, non-rectangular geometry adapted to increase air entrainment.  
   
   
   
       38 . The gas cooking system of  claim 37 , wherein the first gas port comprises a non-circular geometry.  
   
   
       39 . The gas cooking system of  claim 38 , wherein the non-circular geometry is selected from a group consisting of a lobed opening, a triangular opening, a rectangular opening, a square opening, an elliptical opening, a ring shaped opening, an opening having a trip wire, an opening having a chevron, and an opening having a daisy nozzle.  
   
   
       40 . The gas cooking system of  claim 38 , wherein the non-circular geometry comprises a plurality of grouped openings.  
   
   
       41 . The gas cooking system of  claim 40 , wherein at least one of the plurality of grouped openings has a non-circular shape.  
   
   
       42 . The gas cooking system of  claim 37 , wherein the second gas port comprises a triangular opening.  
   
   
       43 . The gas cooking system of  claim 37 , wherein the second gas port comprises a lobed opening.  
   
   
       44 . The gas cooking system of  claim 37 , wherein the second gas port comprises an elliptical opening.  
   
   
       45 . The gas cooking system of  claim 37 , wherein the second gas port comprises a ring shaped opening.  
   
   
       46 . The gas cooking system of  claim 37 , wherein the second gas port comprises an opening having a trip wire.  
   
   
       47 . The gas cooking system of  claim 37 , wherein the second gas port comprises an opening having a chevron.  
   
   
       48 . The gas cooking system of  claim 37 , wherein the second gas port comprises an opening having a daisy nozzle.  
   
   
       49 . The gas cooking system of  claim 37 , wherein the gas cooking burner comprises a venturi section disposed between the first and second gas ports.