| 摘要 |
<p>A filter block for filtering particles contained in the exhaust gas of an internal combustion engine, comprising a plurality of channels for the circulation of said gas, a channel defined by a wall provided with a filtering zone and which opens out towards the outside via an opening, a group of channels comprising at least two channels with different respective F/P ratios between surface F of the filtering zone and surface P of the wall. According to the invention, one channel of the group of channels comprises an opening whose surface O is larger than the surface F of the filtering zone of said channel.</p> |
