| 摘要 |
<p>The device has a cleaning unit (6) discharging nitrogen oxide exhaust gas to a diesel machine (1). A cooling unit (5) is arranged in an exhaust gas passage (4) of the diesel machine and cools exhaust gas. A bypass passage (2) reroutes the exhaust gas to a portion of the exhaust gas passage on an upper side of the cleaning unit and the cooling unit. A control part (20) controls a control unit (14, 15) to discharge the exhaust gas into the bypass passage if flow rate of the exhaust gas exceeds cleaning capacitance of the cleaning unit.</p> |
