Apparatus for treatment of exhaust of a combustion device

Abstract

An apparatus ( 12 ) for treatment of exhaust gas of a combustion device ( 1 ) with a catalytically active converter unit ( 5 ) includes a heating device ( 5 ) for heating the converter unit ( 5 ) with a hydrogenous heating substance, which reduces substantially the system-related expenditure, and which substantially improves the cold-start behavior of the catalytic converter and therefore, substantially reduces in particular the contaminant exhaust of the combustion device ( 1 ) during its cold start phase. The combustion device ( 1 ) is formed as a supply device ( 1 ) for supplying the hydrogenous heating substance to the converter unit ( 5 ).

What is claimed as new and desired to be protected by Letters Patent is set forth in the appended claims:  
     
         1 . Apparatus ( 12 ) for treatment of exhaust of a combustion device ( 1 ) with a catalytically active converter unit ( 5 ), whereby a heating apparatus ( 5 ) for heating of the converter unit ( 5 ) with a hydrogenous heating substance is provided, characterized in that at least the combustion device ( 1 ) is formed as a supplying device ( 1 ) for supplying the hydrogenous heating substance to the converter unit ( 5 ).  
     
     
         2 . Apparatus ( 12 ) according to  claim 1 , characterized in that at least one supply element for supplying the hydrogenous heating substance is disposed in a flow direction before the combustion device ( 1 ).  
     
     
         3 . Apparatus ( 12 ) according to  claim 2 , characterized in that the supply element has at least two supply connections for supply the heating substance and a fuel of the combustion device ( 1 ).  
     
     
         4 . Apparatus ( 12 ) according to  claim 2 , characterized in that the supply element is formed as an injection valve.  
     
     
         5 . Apparatus ( 12 ) according to  claim 1 , characterized in that at least one generator ( 8 ) for production of the hydrogenous heating substance is provided.  
     
     
         6 . Apparatus ( 12 ) according to  claim 5 , characterized in that the generator ( 8 ) is formed as an electrolysis unit ( 8 ).  
     
     
         7 . Apparatus ( 12 ) according to  claim 6 , characterized in that the electrolysis unit ( 8 ) is formed as a membrane electrolysis unit ( 8 ).  
     
     
         8 . Apparatus ( 12 ) according to  claim 5 , characterized in that the generator ( 8 ) includes at least one reformer unit for at least partially converting fuel.  
     
     
         9 . Apparatus ( 12 ) according to  claim 1 , characterized in that at least one storage element ( 10 ) for storing the hydrogenous heating substance is provided.  
     
     
         10 . Apparatus ( 12 ) according to  claim 1 , characterized in that a pressurizer ( 8 ) for pressurizing the hydrogenous heating substance is provided.  
     
     
         11 . Apparatus ( 12 ) according to  claim 1 , characterized in that the converter unit is formed as a heating device.  
     
     
         12 . Apparatus ( 12 ) according to  claim 5 , characterized in that an electrical control unit for controlling a supply element, the generator ( 8 ) or a pressurizer ( 8 ) and/or a storage element ( 10 ) is provided.  
     
     
         13 . Vehicle with an apparatus ( 12 ) for treatment of exhaust of a combustion device ( 1 ), whereby a heating device ( 5 ) for heating of a catalytically active converter unit ( 5 ) with a hydrogenous heating substance is provided, characterized in that the device ( 12 ) is formed according to  claim 1 .  
     
     
         14 . Method for treatment of exhaust of a combustion device ( 1 ) with a catalytically active converter unit ( 5 ), whereby a heating device ( 5 ) for heating of the converter unit ( 5 ) is used with a hydrogenous heating substance, characterized in that in a heating phase of the converter unit ( 5 ), the combustion device ( 1 ) is used as a supply device ( 1 ) for supplying the hydrogenous heating substance to the converter unit ( 5 ).  
     
     
         15 . Method according to  claim 14 , characterized in that a device ( 12 ) as defined in  claim 1  is used.