Combustion system

Abstract

A combustion system for a heat generator, the burner 1 being connected to a combustion chamber 6 by means of an outlet 10 , wherein the outlet 10 comprises a multiply stepped transional structure 11 in the direction of flow of fluid 3 in the burner 1 so as to create turbulence in the fluid flow.

1 . A combustion system for a heat generator, comprising: 
 a premix burner, and outlet, and a combustion chamber, the premix burner being connected to the combustion chamber by the outlet;    wherein the outlet comprises a multiply-stepped transitional structure in the direction of flow of fluid so as to create turbulence in the fluid flow.    
   
   
       2 . A combustion system as claimed in  claim 1 , wherein the transitional structure comprises three to five steps.  
   
   
       3 . A combustion system as claimed in  claim 2 , wherein the transitional structure comprises four steps.  
   
   
       4 . A combustion system as claimed in  claim 1 , wherein the length to height ratio of the steps is from 1:1 to 10:1.  
   
   
       5 . A combustion system as claimed in  claim 4 , wherein the length to height ratio of the steps is from 1:1 to 7:1.  
   
   
       6 . A combustion system as claimed in  claim 1 , wherein the outlet is in the form of comprises a nozzle.  
   
   
       7 . (Canceled)