| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide the exhaust gas cleaning apparatus including a filter for capturing and removing harmful substances such as particulate substances contained in exhaust gas, which filter is composed of a column having a bent pathway and parallel pathways formed by winding up a grooved corrugated strip, thereby preventing the filter composed of such a column from being clogged. <P>SOLUTION: A filter 20 is composed of a column 4 made by shaping a strip 8 comprised of metal mesh or metal nonwoven fabric into a corrugated strip 3 comprised of an edge line 7 extending into at least the width direction and grooves 6 and winding up or laminating the corrugated strip 3 spirally. In the column 4, many bent pathways 16 and/or parallel pathways 17 are formed along the grooves 6 between one end surface 9 layered on the other end surface 10 and the other end surface 10 of the strip 8. The strip 8 is bent into a corrugated sheet to form the corrugated strip 3, the ridge lines 7 and the grooves 6 are shaped in a zig-zag inclined to the axis of the column 4. <P>COPYRIGHT: (C)2009,JPO&INPIT |
