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    • 10. 发明专利
    • DE4428214C2
    • 1997-08-14
    • DE4428214
    • 1994-08-09
    • NGK INSULATORS LTD
    • HIJIKATA TOSHIHIKOHIRAOKA TETSUYAUMEHARA KAZUHIKO
    • B01D46/00B01D46/24F01N3/022F01N3/023F01N3/027F01N3/031F01N3/02B01D46/48
    • An exhaust gas-treating process by capturing particulates in exhaust gas discharged from an internal combustion engine with use of a honeycomb structural filter, the process including the steps of: (1) capturing the particulates contained in the exhaust gas by passing the exhaust gas through the filter; (2) stopping flow of the exhaust gas through the filter and transferring the captured particulates to a location remote from and outside an exhaust line by flowing the particulates captured by the filter in a direction reverse to a flowing direction of the exhaust gas; and (3) burning the particulates and discharging a burnt matter outside. The filter preferably has a honeycomb structural body and second sealed portions in first and second rows at opposite ends of the honeycomb structural body, respectively. Gas stream-introducing channels are each provided near and upstream of said first sealed portions in a respective one of said first rows and penetrating inner walls in the respective one of said first rows, while each of the gas stream-introducing channels penetrates an outer peripheral wall of the honeycomb structural body at at least one of opposite ends thereof.