FILTER FÜR EIN ABGASRÜCKFÜHRSYSTEM DER MITTELS EINES IHN UMHÜLLENDEN KATALYSATORS GEHEIZT WIRD

摘要

A device and a method for exhaust gas purification in a combustion engine comprises an arrangement (30) for recirculating exhaust gases from the engine (1) to an air intake (2) thereof. An exhaust gas purification arrangement (31) is adapted to convert constituents in the exhaust gases to less environmentally hazardous substances. A filter arrangement (32) comprises at least one filter (33) adapted to liberate the exhaust gases from particulate constituents. This filter (33) is adapted to purify EGR-exhaust gases only. According to another aspect of the invention, 2 the filter (33) is aged in heat transferring relation to at least one convener unit (34) of the exhaust gas purification arrangement so as to receive, from the convener unit, a heat addition to promote regeneration of the filter by combustion of paniculate constituents deposited therein.