Fuel injector fixation

Abstract

Improvements for a gas burner bar are provided utilizing reduced parts, easier assembly, and greater reliability. In one or more implementations a portion of an air shutter is disposed between two parts of an injector assembly: an injector and an injector fitting. Assembly in this manner results in proper alignment of the injector assembly thus negating problems that arise with misalignment.

1 . A gas burner bar, comprising:
 a burner;   a Venturi tube attached to the burner;   an air shutter attached to the Venturi tube, the air shutter having an opening;   an injector, the injector situated through the opening of the air shutter; and   an injector fitting, the injector fitting attached to the injector.   
     
     
         2 . The burner bar of  claim 1 , wherein the burner has a burner region with a plurality of combustion points. 
     
     
         3 . The burner bar of  claim 1 , wherein the air shutter has a secondary opening for the entry of air into the gas burner bar. 
     
     
         4 . The burner bar of  claim 1 , wherein a portion of the air shutter is disposed between the injector fitting and the injector. 
     
     
         5 . The burner bar of  claim 4 , wherein the air shutter has a threadless, raised opening. 
     
     
         6 . The burner bar of  claim 4 , wherein the injector is flush against the portion of the air shutter. 
     
     
         7 . The burner bar of  claim 4 , wherein the injector has an opening that is collinear with the Venturi tube. 
     
     
         8 . The burner bar of  claim 3 , further comprising:
 a gas line attached to the injector fitting to provide a fuel gas; and   a regulator attached to the gas line to regulate flow of the fuel gas.   
     
     
         9 . The burner bar of  claim 8 , wherein the fuel gas enters a mixing face of the air shutter through the nozzle, mixes with air from the secondary opening of the air shutter, passes through the Venturi tube as an air/gas mixture, and combusts at the burner. 
     
     
         10 . A cooking appliance, the cooking appliance comprising:
 a cooking cavity; and   a gas burner bar disposed in the cooking cavity, the gas burner bar comprising:
 a burner, 
 a Venturi tube attached to the burner, 
 an air shutter attached to the Venturi tube, the air shutter having an opening; 
 an injector, the injector situated through the opening of the air shutter; and 
 an injector fitting, the injector fitting attached to the injector. 
   
     
     
         11 . The cooking appliance of  claim 10 , wherein the gas burner bar is operated as a bake burner. 
     
     
         12 . The cooking appliance of  claim 10 , wherein the gas burner bar is operated as a broil burner. 
     
     
         13 . The cooking appliance of  claim 10 , wherein the air shutter has a secondary opening for the entry of air into the gas burner bar. 
     
     
         14 . The cooking appliance of  claim 10 , wherein a portion of the air shutter is disposed between the injector fitting and the injector. 
     
     
         15 . The cooking appliance of  claim 15 , wherein the injector has an opening that is collinear with the Venturi tube. 
     
     
         16 . The cooking appliance of  claim 13 , the gas burner bar further comprising:
 a gas line attached to the injector fitting to provide a fuel gas; and   a regulator attached to the gas line to regulate flow of the fuel gas.   
     
     
         17 . The burner bar of  claim 13 , wherein the fuel gas enters a mixing face of the air shutter through the nozzle, mixes with air from the secondary opening of the air shutter, passes through the Venturi tube as an air/gas mixture, and combusts at the burner. 
     
     
         18 . A mixing unit for a gas burner, the mixing unit comprising:
 an injector fitting;   an air shutter disposed against the injector fitting; and   an injector disposed in the air shutter opposite the injector fitting and engaged with the injector fitting through an opening in the air shutter.   
     
     
         19 . The mixing unit for the gas burner of  claim 18 , further comprising:
 a Venturi tube attached to the air shutter and disposed both opposite from and collinear to the injector.