Exhaust Gas Cleaning Component for Cleaning an Internal Combustion Engine Exhaust Gas

Abstract

A component for cleaning the exhaust gas in an internal combustion engine has a carrier body with a plurality of flow ducts for the exhaust gas. At least some of the walls ( 3 ) of the flow ducts have a coating with an oxygen storage capacity. According to the invention, the coating with an oxygen storage capacity is provided for a first delimited region of the carrier body, while a second delimited region of the carrier body is made free of a coating with an oxygen storage capacity or has a coating with a greatly reduced oxygen storage capacity compared to the first region.

1 .- 9 . (canceled) 
   
   
       10 . A component for cleaning the exhaust gas in an internal combustion engine, said component comprising:
 a carrier body; and   a plurality of flow ducts which pass through the carrier body for accommodating an exhaust gas flow; wherein,   at least some of the walls of the flow ducts have a coating with an oxygen storage capacity;   the coating with an oxygen storage capacity is provided in a first delimited region of the carrier body; and   a second delimited region of the carrier body has no coating with an oxygen storage capacity or has a coating with a greatly reduced oxygen storage capacity, relative to oxygen storage capacity in the first region.   
   
   
       11 . The exhaust gas cleaning component as claimed in  claim 10 , wherein at least one of the first region and second region extends over an entire cross section of the carrier body, and is limited in the axial direction with respect to the extent of the carrier body. 
   
   
       12 . The exhaust gas cleaning component as claimed in  claim 10 , wherein the first region adjoins the second region. 
   
   
       13 . The exhaust gas cleaning component as claimed in  claim 10 , wherein the first region extends over more than half the length of the carrier body. 
   
   
       14 . The exhaust gas cleaning component as claimed in  claim 10 , wherein the first region extends from a point which is spaced apart from an inlet end of the carrier body in an axial direction, to an outlet end of the carrier body. 
   
   
       15 . The exhaust gas cleaning component as claimed in  claim 10 , wherein at least two first regions which are spaced apart from one another are provided. 
   
   
       16 . The exhaust gas cleaning component as claimed in  claim 10 , wherein the exhaust gas cleaning component comprises an exhaust gas catalytic converter. 
   
   
       17 . The exhaust gas cleaning component as claimed in  claim 10 , wherein the exhaust gas cleaning component comprises exhaust gas particle filter. 
   
   
       18 . The exhaust gas cleaning component as claimed in  claim 10 , further comprising a temperature recording device for recording a temperature of the coating with an oxygen storage capacity in the first region.