| 摘要 |
<p>PURPOSE:To prevent deterioration of a heating means or damage of a filter, by forming a passage between grates of a grate-like filter in the manner of extending perpendicularly to the grates, and utilizing the above passage as a heated-air passage. CONSTITUTION:The body 4a of a filter is made of a porous filtering material 4c for capturing suspended matter, and heating passages 4e are formed between an exhaust-gas inlet passage 4b and an outlet passage 4d for discharging purified exhaust gas, in the manner of extending perpendicularly to the passages 4b, 4d. A heating means is connected to the heating passages for passing heat produced by the heating means through the heating passages 4e and removing diesel particulates by way of incineration. Thus, since the heating means is not communicated with the exhaust-gas passages, it is enabled to prevent deterioration of the heating means due to diesel particulates accumulated in the heating means and resultant damage of the filter.</p> |
