| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a DPF device allowing arrangement of a plurality of filters in series, reduction of arrangement space, simplification of the handling of pipes, suppressing an increase in exhaust resistance, and easy incorporation into the midway of an existing exhaust system. SOLUTION: This DPF device is characterized by disposing first and second filters 10A and 10B for purifying exhaust gas G of an internal combustion engine mounted on a vehicle in a row in the longitudinal direction of the vehicle successively from an upstream side of an exhaust passage 22 of the internal combustion engine, communicating the exhaust passage 22 and an inlet 13A of the first filter 10A at a first exhaust inlet passage 23A via a passage switching means 31, providing a second exhaust inlet passage 23B passing through the inside of the first filter 10A and communicating the exhaust passage 22 and an inlet 13B of the second filter 10B by the second exhaust inlet passage 23B via a passage switching means 32.</p> |
