| 摘要 |
PURPOSE:To remove filtered combustible fine particles efficiently by burning them while keeping the high filtering capacity of a filter, by applying an electric current to the filter's own body to generate heat. CONSTITUTION:A waste gas from an engine containing fine carbon particles passes through an exhaust manifold and a connecting pipe 18 without causing any change, and flows into an inlet side of a ceramic filter for removing combustible fine particles from the upstream direction F. Next, the waste gas passes through a filtering body 1 and is discharged from the exit side to the outside of a filter 15, and then flows through a connecting pipe 19 to the direction B of an exhausting pipe, etc. on the downstream. When the filter 15 is heated and the temperature of the fine carbon particles is raised to the ingition temperature by the application of an electric current between both electrodes 3 and 4 and the heat generation of a heat generating resistive body 2, the carbon particles burn and vanish, then a pressure drop caused by the clogging of filter due to the deposition of stuck carbon is prevented. |
