Burner unit

Abstract

Example embodiments relate to a burner unit for combusting an air-fuel mixture. The burner unit includes an air supply dome having recesses which have a larger width on an inside of the air supply dome than on an outside.

1 . A burner unit for combusting an air-fuel mixture,
 comprising a combustion space, a combustion air guide dome and a fuel inlet,   wherein the combustion air guide dome is located in the combustion space and has recesses,   wherein the fuel inlet opens into the combustion space, and   wherein the recesses have a larger width on an inside of the combustion air guide dome than on an outside of the combustion air guide dome.   
     
     
         2 . The burner unit according to  claim 1 , wherein the recesses taper from the inside to the outside. 
     
     
         3 . The burner unit according to  claim 1 , wherein the recesses are configured such that they produce a nozzle effect for air directed out of the combustion air guide dome. 
     
     
         4 . The burner unit according to  claim 1 , wherein the recesses have a constant profile along a longitudinal axis of the combustion air guide dome-dome. 
     
     
         5 . The burner unit according to  claim 1 , wherein the combustion air guide dome has a circular cylindrical shape. 
     
     
         6 . The burner unit according to  claim 1 , wherein the recesses have a common height along a longitudinal axis of the combustion air guide dome.