Device for exhaust gas purification

摘要

The invention relates to a device for purifying exhaust gases from a combustion engine ( 1 ), comprising a first filter ( 10 ) arranged in an exhaust ( 7 ) between the engine ( 1 ) and an exhaust outlet ( 8 ) for removing particulate constituents from the exhaust gases, and a recirculation conduit ( 11 ) for diverting a part of the exhaust gases that have passed through said first filter ( 10 ) and recirculating this part of the exhaust gases to the air intake ( 2 ) of the engine. The device further comprises a second filter ( 30 ) arranged between the inlet end ( 20 ) of the recirculation conduit and the air intake ( 2 ) of the engine. The invention also relates to a method for purifying exhaust gases from a combustion engine. Furthermore, the invention relates to the use of the device for exhaust gas purification in particular at a diesel engine.