| 摘要 |
An exhaust gas purifying apparatus comprises a primary diesel particulate filter (22) provided in a primary exhaust line (21) of a diesel engine, a secondary exhaust line (21A) branched from said primary exhaust line (21) from a branching point located at an upstream side of the primary diesel particulate filter (22), a secondary diesel particulate filter (22A) provided in the secondary exhaust line (21A), the secondary diesel particulate filter (22A) having a soot load capacity smaller than the soot load capacity of the primary diesel particulate filter (22), a low pressure part provided in said secondary exhaust line (21A) at a downstream side of said secondary diesel particulate filter (22A), said low pressure part providing a pressure lower than a pressure of said branching point, and a differential pressure measuring part (22B) measuring a differential pressure between an inlet and an outlet of the secondary diesel particulate filter (22A). |
