Atomizing burner

Abstract

The invention relates to an atomizing burner, especially for use in an automobile auxiliary heating system, comprising an atomizing nozzle ( 2 ) for processing the fuel, an ignition device ( 29 ) and a combustion chamber ( 8 ). An iar conduction device ( 10, 12, 14 ) is connected upstream of a nozzle holder ( 3 ) of the atomizing nozzle ( 2 ) in order to achieve finer atomization of the fuel. Said air conduction device subjects the combustion air streaming into the atomizing nozzle ( 2 ) to a swirl.

1 . Atomizer burner, especially for use in motor vehicle auxiliary heating systems, with an atomizer nozzle ( 2 ) for preparing the fuel, an ignition means and a combustion chamber ( 8 ), characterized in that the air-guiding means ( 10 ,  10 ′) is connected upstream of the burner nozzle assembly ( 3 ) of the atomizer nozzle ( 2 ) and swirls the combustion air flowing into the atomizer nozzle ( 2 ).  
     
     
         2 . Atomizer burner as claimed in  claim 1 , wherein the air-guiding means ( 10 ) has swirl blades ( 17 ).  
     
     
         3 . Atomizer burner as claimed in  claim 2 , wherein the swirl blades ( 17 ) are located on a carrier ( 12 ) which is mounted on the burner nozzle assembly ( 3 ) and wherein two swirl blades ( 17 ) at a time together with the carrier ( 12 ) and the burner nozzle assembly ( 3 ) form a conical channel ( 19 ).  
     
     
         4 . Atomizer burner as claimed in  claim 1 , wherein the air-guiding means ( 10 ′) has a pot-shaped sleeve ( 30 ) which is mounted on the burner nozzle assembly ( 3 ) with axial air openings ( 32 ) formed in it and peripheral air openings ( 34 ,  35 ) formed in the peripheral wall ( 33 ).  
     
     
         5 . Atomizer burner as claimed in  claim 4 , wherein the peripheral air openings ( 34 ) are holes formed almost tangentially to the peripheral wall ( 33 ).  
     
     
         6 . Atomizer burner as claimed in  claim 4  or  5 , wherein there are air guide blades ( 36 ) on the peripheral air openings ( 35 ).  
     
     
         7 . Atomizer burner as claimed in one of  claims 4  to  6 , wherein the axial air openings ( 32 ) and the peripheral air openings ( 34 ;  35 ) are matched to one another such that a defined swirl is imparted to the combustion air.  
     
     
         8 . Atomizer burner as claimed in one of  claims 4  to  7 , wherein the sleeve ( 30 ) is connected by form-fit to the burner nozzle assembly ( 3 ).  
     
     
         9 . Atomizer burner as claimed in one of  claims 4  to  7 , wherein the sleeve ( 30 ) is connected by force-fit to the burner nozzle assembly ( 3 ).  
     
     
         10 . Atomizer burner as claimed in one of  claims 4  to  7 , wherein the sleeve ( 30 ) is slipped onto the burner nozzle assembly ( 3 ).  
     
     
         11 . Atomizer burner as claimed in one of the preceding claims, wherein the atomizer nozzle ( 2 ) has an internal cross section which has a static pressure profile over its run which has at least directly around the outlet opening ( 13 ) of the fuel from the fuel feed ( 11 ) its minimum, resulting in a high flow velocity which tears the fuel out of the fuel feed ( 11 ) and atomizes it.  
     
     
         12 . Atomizer burner as claimed in one of the preceding claims, wherein the atomizer nozzle ( 2 ) is a Venturi nozzle.