Exhaust treatment method and apparatus having particulate filters and scr
US-2024159174-A1 · May 16, 2024 · US
Production method for honeycomb structure
US9302212B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9302212-B2 |
| Application number | US-201314435361-A |
| Country | US |
| Kind code | B2 |
| Filing date | Oct 7, 2013 |
| Priority date | Oct 15, 2012 |
| Publication date | Apr 5, 2016 |
| Grant date | Apr 5, 2016 |
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- Title
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Abstract
Official abstract text for this publication.
Regular hexagonal cells at both an top surface and a bottom surface of a green honeycomb molded body are closed at the same time. Therefore, the regular hexagonal cells can be closed effectively. In addition, the regular hexagonal cells of the green honeycomb molded body are closed by welding partition walls with each other, by inserting each of closing protrusions of a closing jig into the plurality of regular hexagonal cells. Therefore, a closing paste like the conventional method is not required. In a case where a honeycomb structure is used for a diesel particulate filter, turbulence of exhaust gas flow, at the end surface of the side to supply the exhaust gas and/or the side to discharge the exhaust gas, is reduced, and pressure drop can be reduced.
First claim
Opening claim text (preview).
The invention claimed is: 1. A production method for a honeycomb structure, in which a plurality of holes is opened at end surfaces of a columnar body, comprising: a closing step of closing a part of a plurality of through holes of a green honeycomb molded body, in which the plurality of through holes partitioned from each other by a partition wall is opened at the end surfaces of the columnar body and which becomes the honeycomb structure by being calcined, wherein in the closi…
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Classifications
Mechanical Engineering · mapped topic
Operations & Transport · mapped topic
- F01N3/0222Primary
Mechanical Engineering · mapped topic
- B01D46/2444Primary
Operations & Transport · mapped topic
Operations & Transport · mapped topic
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Frequently asked questions
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- What does patent US9302212B2 cover?
- Regular hexagonal cells at both an top surface and a bottom surface of a green honeycomb molded body are closed at the same time. Therefore, the regular hexagonal cells can be closed effectively. In addition, the regular hexagonal cells of the green honeycomb molded body are closed by welding partition walls with each other, by inserting each of closing protrusions of a closing jig into the plu…
- Who is the assignee on this patent?
- Sumitomo Chemical Co
- What technology area does this patent fall under?
- Primary CPC classification F01N3/0222. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Apr 05 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).