Patent ID: 9623359
Date: 2017-04-18
CPC Classifications: B01D,B28B,C04B,F01N

Claim:
1. A sealed honeycomb structure comprising: porous walls dividedly forming a plurality of cells extending from an end surface of an inlet side to an end surface of an outlet side of the sealed honeycomb structure, the plurality of cells being a plurality of fluid channels; an outlet side sealing portion mounted at openings of predetermined cells in the end surface of the outlet side so as to form inlet cells where the end surface of the inlet side is open and the end surface of the outlet side is sealed; and an inlet side sealing portion mounted at openings of remaining cells in the end surface of the inlet side so as to form outlet cells where the end surface of the outlet side is open and the end surface of the inlet side is sealed, wherein at least one cell among the outlet cells is a reinforced cell where reinforcing parts for reinforcing the outlet cells are formed at at least one corner portion at which the porous walls on a cross-section vertical to an extending direction of the outlet cells cross each other, wherein the inlet cells are provided with reinforcing parts for reinforcing the inlet cells at at least one corner portion at which the porous walls on the cross-section vertical to the extending direction of the inlet cells cross each other, wherein a total number of the at least one corner portion reinforcing the inlet cells is smaller than a total number of the at least one corner portion reinforcing the outlet cells, wherein the reinforcing parts of the outlet cells are formed at a section of the sealed honeycomb structure from the end surface of the outlet side of the sealed honeycomb structure in the extending direction of the outlet cells, and wherein the reinforcing parts of the inlet cells are formed at a section of the sealed honeycomb structure from the end surface of the inlet side of the sealed honeycomb structure in the extending direction of the inlet cells.