Exhaust gas filter for diesel engine.

摘要

An exhaust gas filter for a diesel engine provided with many narrow portions (8) at the entrance or at the entrance and exit of the filter, wherein the area of the upstream side face is increased to deposit carbon soot (7) on this face and on the entrance exhaust gas channel uniformly. By providing many grooves on the cell wall at the upstream direction, more carbon soot deposits in this groove. Accordingly, the constitution permits reliable carbon soot ignition, complete carbon soot burn out with smaller quantities of carbon deposition as a whole.