| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To aim at improving PM collecting efficiency of an open-type DPF. <P>SOLUTION: There is provided a plurality of exhaust gas flow paths which are provided in an exhaust path 30 of an internal-combustion engine 1 and are compartmented by porous partition walls. The exhaust gas flow path is characterized by including an exhaust gas purifying filter 40 having a flow path whose inlet is closed and a flow path whose outlet is throttled, an exhaust gas flow rate detection means 100 which detects a flow rate of an exhaust gas discharged from the internal-combustion engine 1, and a filter inflow rate adjusting means 50 which increases a rate of the exhaust gas flowing into the exhaust gas cleaning filter 40 when the exhaust gas rate detected by the exhaust gas flow rate detection means 100 is less than a reference flow rate. <P>COPYRIGHT: (C)2008,JPO&INPIT</p> |
