| 摘要 |
A sealed honeycomb structure which can suppress increase of pressure loss and improve durability favorably is disclosed. A sealed honeycomb structure 100 including a honeycomb structure 4 having porous walls 1 dividedly forming inlet cells 2a and outlet cells 2b, an outlet side sealing portion 5b, and an inlet side sealing portion, wherein an opening area of the inlet cell 2a is larger than an opening area of an outlet cell 2b on a cross-section of the honeycomb structure 4, wherein at least one outlet cell 2b is a reinforced cell 22 where a reinforcing part 6 for reinforcing the outlet cell 2b is formed at at least one corner portion 21 a at which the walls 1 on a cross-section vertical to an extending direction of the cell 2 cross each other, and wherein the inlet cell 2a is a non-reinforced cell 23 where the reinforcing part 6 is not formed at all the corner portions 21 at which the walls 1 on the cross-section vertical to the extending direction of the cell 2 cross each other. |
