| 摘要 |
<p>PURPOSE:To enhance ignition properties as well as to reduce harmful components in exhaust gas by supporting catalysts by filters in a device wherein the filters which arrest fine particles in exhaust gas, and electrodes which burn the fine particles, are alternately piled up. CONSTITUTION:Conductive electrodes 2 and porous filters 1 are alternately piled up via insulators 4 on the way of an exhaust passage 3 so as to be held in a housing 5. Each electrode 2 is alternately connected with each end section of the filters 1, and one group of these connected electrodes, and the other group of them are concurrently set on an earthing electrode 7 and a non- earthing electrode 8 respectively. In addition, the lower surface of the center section of the piled-up bodies 1 and 2 is blocked by an insulation shielding plate 6. In this case, catalysts (not shown) are supported within the filters 1. As catalysts, a compound composed of, for example, alkalimetal shall be used in order that HC and particulates can be burnt or ignited while an reduction of NOx is thereby accelerated at low temperatures.</p> |
