Device for pollution control of the exhaust gases from an internal combustion engine

摘要

The device has an oxidation catalyst (28) placed in an upstream of a catalytic particle filter (30), and a temperature sensor (40) placed between the filter and the catalyst. An electronic control unit (41) receives data from the sensor. An additional heating unit heats the exhaust gas in upstream of the catalyst and has an additional oxidation catalyst (26). A fuel injecting system (10) supplies fuel in gaseous form to an additional temperature sensor (36) when temperature measurement provided by the sensor (36) is higher than or equal to a threshold temperature to activate the catalyst (26). An independent claim is also included for a method of depolluting exhaust gas of an internal combustion engine of a motor vehicle.