| 摘要 |
<p>PURPOSE:To provide an exhaust emission control device capable of efficiently regenerating a filter as well as capturing environmentally harmful particulates contained in exhaust gas by the filter. CONSTITUTION:This is an exhaust emission control device having a plural number of filter units 3 connected to an exhaust gas pipe 1 through a directional control valve 2, each of the filter units 3 has one or a plural number of filters 4 coated with a catalyzer and an electric heater 5, the catalyzer holds a ctalyzer activated species consisting of fine powder of a composite oxide expressed by a usual expression Ln1-xAxMO3 on a porous inorganic oxide, the particulates scavenged on the filters 4 are burnt by heating of the electric heater 5 and accordingly the filters 4 are regenerated.</p> |
