发明授权
- 专利标题: Honeycomb filter
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申请号: US17656032申请日: 2022-03-23
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公开(公告)号: US11590444B2公开(公告)日: 2023-02-28
- 发明人: Takashi Aoki , Yasuyuki Furuta , Takahiro Honda , Koji Kuzutani
- 申请人: NGK Insulators, Ltd.
- 申请人地址: JP Nagoya
- 专利权人: NGK Insulators, Ltd.
- 当前专利权人: NGK Insulators, Ltd.
- 当前专利权人地址: JP Nagoya
- 代理机构: Burr Patent Law, PLLC
- 优先权: JPJP2021-103264 20210622
- 主分类号: B01D46/24
- IPC分类号: B01D46/24 ; B01J35/04
摘要:
A honeycomb filter includes a pillar-shaped honeycomb substrate having a porous partition wall and a plugging portion provided so as to plug end at any one of the inflow end face side or the outflow end face side of the cell, wherein in a section orthogonal to the extending direction of the cell, the shape of the cell is hexagonal, the partition wall includes a first partition wall disposed between the inflow cell and the outflow cell and a second partition wall disposed between the inflow cells, and the first partition wall has a porous trapping layer on its surface for trapping particulate matter in exhaust gas, and the second partition wall has no trapping layer on its surface or has a trapping layer thinner than the trapping layer disposed on the surface of the first partition wall.
公开/授权文献
- US20220401870A1 HONEYCOMB FILTER 公开/授权日:2022-12-22
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