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

Claims

6 · 1 independent · depth 2

6 granted claims

›1.independentA sealed honeycomb structure comprising:nporous walls dividedly forming a plurality of cells extending from an end surface of an inlet side to an end …+5

›2.↳ 1The sealed honeycomb structure of claim 1, wherein the reinforced cell comprises a reinforced corner portion at which the reinforcing part is formed a…d2

›3.↳ 1The sealed honeycomb structure of claim 1, wherein the reinforced cell is configured that the reinforcing parts are formed at all the corner portions …d2

›4.↳ 1The sealed honeycomb structure of claim 1, wherein an opening shape of the inlet cells on the cross-section vertical to the extending direction of the…d2

›5.↳ 1The sealed honeycomb structure of claim 1, wherein a ratio of an intersecting distance of an intersecting part of the walls to an average thickness of…d2

›6.↳ 1The sealed honeycomb structure of claim 1, wherein each reinforcing part occupies 0.05 to 20 of an area of an opening portion without the reinforcing …d2

Classifications

8 codes

IPC · International Patent Classification

Section B — Performing operations; transporting

B01D39/04
B01D24/00
B01D46/24
B01D39/20
B01D39/16
B01D50/00

Section C — Chemistry; metallurgy

C04B38/00

Section F — Mechanical engineering; lighting; heating; weapons

F01N3/022

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Pendency

4.1 y

1,495 days filing → grant

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Examiner

Amber R Orlando

art unit 1776 · TC 1700

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Citations: 24 back · 0 forward

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1 priority documents

›Priority documents — 1

Type	Document	Date
related publication	US 20140123611 A1	8 May 2014

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