Device for post-treatment of waste gas

Abstract

A device for exhaust-gas aftertreatment, including a delivery device 2 for delivering a liquid additive out of a tank 1, a pressure sensor 6, an exhaust line 5, a delivery line 3 leading from the delivery device 2 to the exhaust line 5, and an injection device 4 for introducing the delivered additive into the exhaust line 5. The pressure sensor 6 is arranged on the injection device 4.

What is claimed is: 
     
         1 . A device for exhaust-gas aftertreatment, comprising:
 a delivery device for delivering a liquid additive out of a tank;   a pressure sensor;   an exhaust line;   a delivery line leading from the delivery device to the exhaust line; and   an injection device for introducing the delivered additive into the exhaust line;   wherein the pressure sensor ( 6 ) is arranged on the injection device ( 4 ).   
     
     
         2 . The device of  claim 1 , wherein the pressure sensor ( 6 ) is fastened to the housing ( 7 ) of the injection device ( 4 ). 
     
     
         3 . The device of  claim 2 , the housing ( 7 ) of the injection device ( 4 ) further comprising an opening ( 8 ) into which the pressure sensor ( 6 ) is inserted. 
     
     
         4 . The device of  claim 2 , wherein the pressure sensor ( 6 ) is flange-mounted on the housing ( 7 ) of the injection device ( 4 ). 
     
     
         5 . The device of  claim 4 , further comprising:
 an opening in the housing; and   a pressure connection to the pressure sensor;   wherein the pressure connection to the pressure sensor ( 6 ) exists via the opening ( 8 ) in the housing ( 7 ).   
     
     
         6 . The device of  claim 1 , wherein the pressure sensor ( 6 ) is arranged within the housing ( 7 ) of the injection device ( 4 ).