EXHAUST EMISSION CONTROL DEVICE

摘要

PROBLEM TO BE SOLVED: To keep pressure loss of a particulate filter low. SOLUTION: This exhaust emission control device has the particulate filter 22 for collecting particulates in exhaust gas. The particulate filter has a partition 54 defining passages 50 and 51. The partition is made of porous material containing pores having a predetermined average diameter. Ends of the partition are gathered and partially interconnected so that the end openings of the passages are small holes 55 and 56 having a flow channel cross section that is larger than the diameter of the pores of the partition but smaller than the flow channel cross section of an original passage.