| 摘要 |
A particulate filter 20 comprises a honeycomb body 21 having an inlet end, an outlet end, and a plurality of flow passages 23 separated by porous walls. Plugs 22F, 22M and 22R are formed in predetermined flow passages 23 for removing particulate matter from an exhaust gas flow passing through the porous walls. The plugs include plugs 22F at the inlet end, plugs 22R at the outlet end, and plugs 22M positioned and distributed in a configuration that increases the regeneration efficiency of the particulate filter 20. The intermediate plugs may be located towards the inlet end of the honeycomb body, and/or they may be outlet end plugs that have been repositioned towards the inlet end. A motor vehicle may comprise an engine and the particulate filter, which may be a diesel particulate filter (DPF). The position of the intermediate plugs may be optimised using flow modeling, such as computational flow dynamics (CFD). |
