| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a honeycomb structure can efficiently clean carbon monoxide (CO), hydrocarbons (HC), nitrogen oxide (NO<SB>x</SB>), etc. contained in an exhaust gas. <P>SOLUTION: The honeycomb structure includes porous partitioning walls so formed as to define and form a plurality of cells to be channels for a fluid which pass completely through both end parts and the outer circumferential wall so arranged as to surround the partitioning walls. The partitioning walls are curved to prevent a fluid from moving straightly in the cells and a plurality of pin holes with an average diameter of 100 to 500 μm and piercing the partitioning walls are formed in the partitioning walls. <P>COPYRIGHT: (C)2010,JPO&INPIT |
