FILTER, EXHAUST GAS PURIFYING APPARATUS FOR INTERNAL COMBUSTION ENGINE AND EXHAUST GAS PURIFYING METHOD

摘要

Disclosed is a filter for purifying an exhaust gas discharged from an internal combustion engine, wherein an ash trap layer is provided in a cell on the exhaust gas inflow side. Consequently, the filter can have a longer life without sacrificing the filtration area or pressure loss by effectively accumulating ashes which are produced during regeneration of the filter.