| 摘要 |
An exhaust gas purifying device includes a first case housing a soot filter for purifying exhaust gas, second and third cases that are respectively placed on an upstream side and a downstream side of the first case in an exhaust gas flowing direction, and a differential pressure sensor that detects pressure difference between the upstream side and the downstream side of the soot filter. Pipes are respectively attached to the first case and one of the second and third cases placed on the upstream side or the downstream side of the first case, the pipes introducing pressures inside the first case and the one of the second and third cases to the differential pressure sensor. |
