Device for after-treatment of exhaust gases from internal combustion engines

Abstract

Ceramic support bodies for the after-treatment of exhaust gases of internal combustion engines is provided. On a jacket of the support body heat-resistant elevations are subsequently applied that fix the bed against movement.

1 . A device for aftertreatment of exhaust gases of internal combustion engines, the comprising: 
 an active ceramic support body;    a bed mat; and    a housing;    wherein a jacket of the support body has temperature-resistant elevations that are subsequently applied.    
   
   
       2 . The device according to  claim 1 , wherein the elevations have a baked-on ceramic.  
   
   
       3 . The device according to  claim 1 , wherein the elevations are annular.  
   
   
       4 . The device according to  claim 1 , wherein the elevations are punctiform.  
   
   
       5 . The device according to  claim 4 , wherein the bed mat has recesses that correspond with the elevations.  
   
   
       6 . The device according to  claim 1 , wherein the housing has recesses that correspond with the elevations.  
   
   
       7 . A device for treating exhaust gases of a vehicle, the device comprising: 
 a ceramic support body having a plurality of honeycomb-shaped channels formed therein;    a bed mat substantially circumscribing the ceramic support body; and    a plurality of engagement devices provided on the ceramic support body for fixedly supporting the bed mat to an outer surface of the ceramic support body, thereby preventing movement between the bed mat and the ceramic support body.    
   
   
       8 . The device according to  claim 7 , wherein the engagement devices are punctiform elevations that are provided on the ceramic support body such that the punctifom elevations correspond to a plurality of apertures provided in the bed mat for fixedly supporting the bed mat.