Fume exhaust system for cooking fumes

Abstract

A fume exhaust system includes a fume filter, particularly, an odor filter that induces a catalysis process with the aid of catalyst material of the filter given irradiation of the fume exhaust stream with UV light and/or given ionization of the fume exhaust stream.

I claim:  
     
         1 . A filtering system for a fume exhaust stream of a fume exhaust system, comprising: 
 at least one filter having a catalyst material; and    an ionization source ionizing the fume exhaust stream, said ionization source disposed at said filter to induce a catalytic decomposition of at least one component of the fume exhaust stream with said catalyst material.    
     
     
         2 . The filtering system according to  claim 1 , wherein said ionization source is disposed upstream of said filter with respect to a fume exhaust stream flow direction.  
     
     
         3 . The filtering system according to  claim 1 , wherein: 
 said filter is an odor filter; and    said catalyst material is of a material catalytically decomposing an odor component of the fume exhaust stream.    
     
     
         4 . The filtering system according to  claim 1 , wherein: 
 said filter has a lattice structure defining openings; and    the fume exhaust stream passes through said openings.    
     
     
         5 . The filtering system according to  claim 4 , wherein said lattice structure is a honeycomb structure.  
     
     
         6 . The filtering device according to  claim 1 , wherein said filter has a carrier lattice onto which said catalyst material is applied.  
     
     
         7 . The filtering system according to  claim 6 , wherein said carrier lattice is of one of the group consisting of metal and ceramic.  
     
     
         8 . The filtering system according to  claim 6 , including a material doped with said catalyst material, said material being applied to said carrier lattice.  
     
     
         9 . The filtering system according to  claim 8 , wherein said material is ceramic.  
     
     
         10 . The filtering system according to  claim 9 , wherein said ceramic is zeolite ceramic.  
     
     
         11 . The filtering system according to  claim 1 , wherein said catalyst material is titanium dioxide.  
     
     
         12 . The filtering system according to  claim 1 , wherein: 
 said filter has an adsorption material for adsorbing components from the fume exhaust stream; and    the adsorbed components are desorbable by heating said filter to a temperature in a range between 120° C. and 180° C.    
     
     
         13 . A filtering system for a fume exhaust stream of a fume exhaust system, comprising: 
 at least one filter having: 
 a catalyst material; and  
 an adsorption material adsorbing components from the fume exhaust stream, said adsorption material being desorbable to remove adsorbed components from said adsorption material;  
   at least one of: 
 a UV light source irradiating the fume exhaust stream with UV light; and  
 an ionization source ionizing the fume exhaust stream,  
   to induce catalytic decomposition of at least one component of the fume exhaust stream with said catalyst material; and    said at least one of said UV light source and said ionization source being disposed at said filter.    
     
     
         14 . The filtering system according to  claim 13 , wherein said at least one of said UV light source and said ionization source is disposed upstream of said filter with respect to a fume exhaust stream flow direction.  
     
     
         15 . The filtering system according to  claim 13 , wherein: 
 said filter is an odor filter; and    said catalyst material is of a material catalytically decomposing an odor component of the fume exhaust stream.    
     
     
         16 . The filtering system according to  claim 13 , wherein: 
 said filter has a lattice structure defining openings; and    the fume exhaust stream passes through said openings.    
     
     
         17 . The filtering system according to  claim 16 , wherein said lattice structure is a honeycomb structure.  
     
     
         18 . The filtering device according to  claim 13 , wherein said filter has a carrier lattice onto which said catalyst material is applied.  
     
     
         19 . The filtering system according to  claim 18 , wherein said carrier lattice is of one of the group consisting of metal and ceramic.  
     
     
         20 . The filtering system according to  claim 18 , including a material doped with said catalyst material, said material being applied to said carrier lattice.  
     
     
         21 . The filtering system according to  claim 20 , wherein said material is ceramic.  
     
     
         22 . The filtering system according to  claim 21 , wherein said ceramic is zeolite ceramic.  
     
     
         23 . The filtering system according to  claim 13 , wherein said catalyst material is titanium dioxide.  
     
     
         24 . The filtering system according to  claim 13 , wherein: 
 said filter has an adsorption material for adsorbing components from the fume exhaust stream; and    the adsorbed components are desorbable by heating said filter to a temperature in a range between 120° C. and 180° C.    
     
     
         25 . A fume exhaust system for cleaning a fume exhaust stream, comprising: 
 a filtering system for filtering the fume exhaust stream, said filtering system having: 
 at least one filter having a catalyst material; and  
 an ionization source ionizing the fume exhaust stream, said ionization source disposed at said filter to induce a catalytic decomposition of at least one component of the fume exhaust stream with said catalyst material; and  
   a fan fluidically connected to said filtering system for drawing the fume exhaust stream through said filtering system.    
     
     
         26 . A fume exhaust system for cleaning a fume exhaust stream, comprising: 
 a filtering system for filtering the fume exhaust stream, said filtering system having: 
 at least one filter having: 
 a catalyst material; and  
 an adsorption material adsorbing components from the fume exhaust stream, said adsorption material being desorbable to remove adsorbed components from said adsorption material;  
 
 at least one of: 
 a UV light source irradiating the fume exhaust stream with UV light; and  
 an ionization source ionizing the fume exhaust stream,  
 
 to induce catalytic decomposition of at least one component of the fume exhaust stream with said catalyst material; and  
 said at least one of said UV light source and said ionization source being disposed at said filter; and  
   a fan fluidically connected to said filtering system for drawing the fume exhaust stream through said filtering system.    
     
     
         27 . In a fume exhaust hood, a fume exhaust system comprising: 
 a filtering system for filtering the fume exhaust stream, said filtering system having: 
 at least one filter having a catalyst material; and  
 an ionization source ionizing the fume exhaust stream, said ionization source disposed at said filter to induce a catalytic decomposition of at least one component of the fume exhaust stream with said catalyst material; and  
   a fan fluidically connected to said filtering system for drawing the fume exhaust stream through said filtering system.    
     
     
         28 . In a fume exhaust hood, a fume exhaust system comprising: 
 a filtering system for filtering the fume exhaust stream, said filtering system having: 
 at least one filter having: 
 a catalyst material; and  
 an adsorption material adsorbing components from the fume exhaust stream, said adsorption material being desorbable to remove adsorbed components from said adsorption material;  
 
 at least one of: 
 a VW light source irradiating the fume exhaust stream with UV light; and  
 an ionization source ionizing the fume exhaust stream,  
 
 to induce catalytic decomposition of at least one component of the fume exhaust stream with said catalyst material; and  
 said at least one of said UV light source and said ionization source being disposed at said filter; and  
   a fan fluidically connected to said filtering system for drawing the fume exhaust stream through said filtering system.