| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a segment structure with reduced thermal stress, having an enhanced limit amount of collected PM per DPF volume relative to a prior art segment shape of a square or triangular cross section. <P>SOLUTION: The segment structure includes a plurality of segments 11 of a cross section of a regular hexagonal shape orthogonally intersecting the flow direction of exhaust bonded together by a bonding layer 12, and is made to have a cylindrical exterior shape. <P>COPYRIGHT: (C)2010,JPO&INPIT |
