| 摘要 |
<p>PURPOSE:To stably collect carbon particles and clean up by a method wherein a filter to collect carbon particles in exhaust gas and a burner to burn the carbon particles are provided. CONSTITUTION:Exhaust gas is flowed through the first path which leads to an outlet pipe 12 through an inlet pipe 24, the inner space 22 of a pipe 11, a filter 9, and an outer space 22. When the fuel consumption of the engine attains to a predetermined value, a valve 15 is operated by a computer 17 and exhaust gas is flowed through a by-pass pipe 16. Simultaneouly with this, a small-sized burner 5 is ignited with a glow plug 7 and the carbon particles caught by the filter 9 are burnt and cleaned up. In a manner described above, cleaning-up is accomplished with a small quantity of heat energy and in a short time, so the space and weight of the cleanup device can be sharply reduced.</p> |
