| 摘要 |
<p>PURPOSE:To prevent clogging of a filter without using a burner or heater by changing at least either of slant angle of a catalytic solution reflector with a number of pores, or injecting direction of a catalytic solution injection nozzle. CONSTITUTION:When catalytic solution A is emitted from a nozzle 21, a reflector 30 rocks in the directions of (b) and (c) within a fixed range. Therefore, catalytic solution is suppled widely and uniformly in front of a particulate filter 10, and consequently, flammable particulates accumulated n the filter 10 are burned and removed surely and effectively. The same effect is available by making the nozzle 21 to emit catalytic solution (A) rockable.</p> |
