Sealed honeycomb structure and device for cleaning exhaust

a technology of sealing honeycomb and sealing honeycomb, which is applied in the direction of ceramicware, filtration separation, and separation processes, etc., can solve the problems of deterioration of the purification performance of the exhaust gas, and deterioration of the sealing honeycomb structure performance, so as to reduce the influence of pressure loss, and suppress the increase of pressure loss
US9327222B2Active Publication Date: 2016-05-03HYUNDAI MOTOR CO LTD +2
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Patent Information

Authority / Receiving Office
US · United States
Patent Type
Patents(United States)
Current Assignee / Owner
HYUNDAI MOTOR CO LTD
Publication Date
2016-05-03
Patent Text Reader

Abstract

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.
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Description

CROSS-REFERENCE TO RELATED APPLICATION

[0001] This application is a National Stage of International Patent Application No. PCT / JP2012 / 058727 filed Mar. 30, 2012 and published as WO 2012 / 133847, which claims priority to Japanese Patent Application No. 2011-078694 filed Mar. 31, 2011, the entire contents of which applications is incorporated herein for all purposes by this reference.BACKGROUND OF INVENTION

[0002] 1. Field of Invention

[0003] The present invention relates to a sealed honeycomb structure and a device for cleaning exhaust. More particularly, the present invention relates to a sealed honeycomb structure which can suppress increase of pressure loss and improve durability favorably and a device for cleaning exhaust using the sealed honeycomb structure.

[0004] 2. Description of Related Art

[0005] Gas exhausted from internal combustion engines such as diesel engines or other combustion devices contains a large amount of particulate matter (PM) having soot as main component. Since the P...

Claims

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