发明申请
- 专利标题: HONEYCOMB FILTER AND METHOD FOR PRODUCING HONEYCOMB FILTER
- 专利标题(中): 蜂窝状过滤器和蜂窝过滤器生产方法
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申请号: US13239898申请日: 2011-09-22
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公开(公告)号: US20120009092A1公开(公告)日: 2012-01-12
- 发明人: Takashi Mizutani , Shingo Iwasaki , Yukio Miyairi
- 申请人: Takashi Mizutani , Shingo Iwasaki , Yukio Miyairi
- 申请人地址: JP Nagoya-City
- 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-City
- 优先权: JP2009-076142 20090326
- 主分类号: B01D53/34
- IPC分类号: B01D53/34 ; C04B35/64 ; B01D39/20
摘要:
There is provided a honeycomb filter wherein particles having an average particle diameter smaller that of the particles constituting partition walls are deposited at least in open pores formed by the particles constituting the partition walls and/or gaps between the particles in a surface layer portion of the partition walls on the exhaust gas inflow side, thereby forming a composite region. The average pore diameter of the partition walls is 5 to 40 μm, and the porosity of the partition wall is 35 to 75%. The particles to be deposited have an average particle diameter of 1 to 15 μm, and the height of the composite region is not more than 80 μm in the direction from the outermost contour line of the partition walls to the surface of the partition walls.
公开/授权文献
- US08470254B2 Honeycomb filter and method for producing honeycomb filter 公开/授权日:2013-06-25
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