Patent ID: 6843966

Claim:
An apparatus for post-treating exhaust gases of an internal combustion engine ( 2 ), comprising a reduction catalytic converter ( 4 ) which serves to reduce NO x ingredients of the exhaust gases and to which an exhaust pipe ( 6 ) leads, the apparatus being provided with a reducing agent supply device ( 8 ) and means ( 10 ) which generates a pressure difference in the exhaust gas in the exhaust pipe ( 6 ), and further provided with a bypass line ( 12 ) that bypasses the means ( 10 ) for generating the pressure difference, wherein the reducing agent supply device ( 8 ) introduces the reducing agent into the bypass line ( 12 ), and in which the means ( 10 ) generating the pressure difference in the exhaust pipe ( 6 ) is a turbine of an exhaust gas turbocharger.