Burner plates and burner apparatus

Abstract

This disclosure provides systems, methods, and apparatus related to burners. In one aspect, an apparatus includes a burner body, an inlet to the burner body, a divider disposed in the burner body, and a burner plate. The inlet is operable for delivery of a fuel/air mixture to the burner body. The divider forms a first section and a second section in the burner body. The divider defines a plurality of interior ports between the first section and the second section. The burner plate defines a combustion surface for the fuel/air mixture. The burner plate forms a surface of the burner body and in part defines the second section. The burner plate defines a plurality of primary ports. The burner plate further defines a plurality of secondary ports surrounding each primary port of the plurality of primary ports.

What is claimed is: 
     
         1 . An apparatus comprising:
 a burner body;   an inlet to the burner body, the inlet operable for delivery of a fuel/air mixture to the burner body;   a divider disposed in the burner body, the divider forming a first section and a second section in the burner body, the divider defining a plurality of interior ports between the first section and the second section, the inlet operable for the delivery of the fuel air mixture to the first section of the burner body; and   a burner plate, the burner plate defining a combustion surface for the fuel/air mixture, the burner plate forming a surface of the burner body and in part defining the second section, the burner plate defining a plurality of primary ports, and the burner plate further defining a plurality of secondary ports surrounding each primary port of the plurality of primary ports.   
     
     
         2 . The apparatus of  claim 1 , wherein each primary port of the plurality of primary ports defined in the burner plate is circular, and wherein each of the primary ports has a diameter of about 0.2 inches to 0.325 inches. 
     
     
         3 . The apparatus of  claim 1 , wherein each secondary port of the plurality of secondary ports defined in the burner plate is circular, and wherein each of the secondary ports has a diameter of about 0.045 inches to 0.075 inches. 
     
     
         4 . The apparatus of  claim 1 , wherein a distance between an edge of a primary port and an edge of a secondary port of the plurality of secondary ports surrounding the primary port is about 0.2625 inches to 0.4375 inches. 
     
     
         5 . The apparatus of  claim 1 , wherein a distance between an edge of a first secondary port and an edge of a second secondary port of the plurality of secondary ports surrounding a primary port of the plurality of primary ports is at least about 0.057 inches. 
     
     
         6 . The apparatus of  claim 1 , wherein a distance between an edge of a first primary port and an edge of a second primary port of the plurality of primary ports is about 0.125 inches or less. 
     
     
         7 . The apparatus of  claim 1 , wherein the plurality of secondary ports surrounding each primary port of the plurality of primary ports comprises about 4 to 14 secondary ports. 
     
     
         8 . The apparatus of  claim 1 , wherein a size of each interior port of the plurality of interior ports increases with increasing distance from the inlet. 
     
     
         9 . The apparatus of  claim 1 , wherein each interior port of the plurality of interior ports defined in the divider has a dimension in the divider of about 0.09 inches to 0.125 inches. 
     
     
         10 . The apparatus of  claim 1 , wherein secondary ports of the plurality of secondary ports surrounding each primary port of the plurality of primary ports are arranged symmetrically around said primary port. 
     
     
         11 . The apparatus of  claim 1 , wherein secondary ports of the plurality of secondary ports surrounding each primary port of the plurality of primary ports are equidistant from said primary port. 
     
     
         12 . The apparatus of  claim 1 , wherein each interior port of the plurality of interior ports defined in the divider is circular. 
     
     
         13 . The apparatus of  claim 1 , wherein the divider comprises a first planar sheet of material, and wherein the burner plate comprises a second planar sheet of material. 
     
     
         14 . The apparatus of  claim 1 , further comprising:
 a venturi tube, wherein the venturi tube is positioned such that the fuel/air mixture flows through the venturi tube and then into the burner body.   
     
     
         15 . The apparatus of  claim 1 , wherein the apparatus is operable without a fan or an air blower for the delivery of the fuel/air mixture to the burner body. 
     
     
         16 . The apparatus of  claim 1 , wherein the plurality of primary ports comprises about 10 to 70 primary ports. 
     
     
         17 . The apparatus of  claim 1 , wherein the plurality of primary ports is defined in the burner plate such that centers of four adjacent primary ports form corners of a square. 
     
     
         18 . The apparatus of  claim 1 , wherein the divider is disposed in the burner body such that a cross-sectional area defined by the first section increases with increasing distance from the inlet. 
     
     
         19 . An apparatus comprising:
 a burner body;   an inlet to the burner body, the inlet operable for delivery of a fuel/air mixture to the burner body;   a divider disposed in the burner body, the divider forming a first section and a second section in the burner body, the divider defining a plurality of interior ports between the first section and the second section, the inlet operable for the delivery of the fuel air mixture to the first section of the burner body; and   a burner plate, the burner plate defining a combustion surface for the fuel/air mixture, the burner plate forming a surface of the burner body and in part defining the second section, the burner plate defining a plurality of primary ports, each primary port of the plurality of primary ports being circular, each of the primary ports having a diameter of about 0.2 inches to 0.325 inches, and the burner plate further defining a plurality of secondary ports surrounding each primary port of the plurality of primary ports.   
     
     
         20 . An apparatus comprising:
 a burner body;   an inlet to the burner body, the inlet operable for delivery of a fuel/air mixture to the burner body;   a divider disposed in the burner body, the divider forming a first section and a second section in the burner body, the divider defining a plurality of interior ports between the first section and the second section, the inlet operable for the delivery of the fuel air mixture to the first section of the burner body; and   a burner plate, the burner plate defining a combustion surface for the fuel/air mixture, the burner plate forming a surface of the burner body and in part defining the second section, the burner plate defining a plurality of primary ports, and the burner plate further defining a plurality of secondary ports surrounding each primary port of the plurality of primary ports, each secondary port of the plurality of secondary ports being circular, and each of the secondary ports having a diameter of about 0.045 inches to 0.075 inches.