| 摘要 |
An object is to provide a diesel engine (2) that eliminates discomfort when an operator of a working machine coupled to the diesel engine (2) is at work while a particulate filter (10) is being regenerated. A diesel engine (2) includes an exhaust emission purifier (1) and selecting means (41) capable of selecting any one control method from isochronous control and droop control. The exhaust emission purifier (1) includes a particulate filter (10) and a pressure regulation valve (61). The particulate filter (10) is disposed along an exhaust stream to purify exhaust gas. The pressure regulation valve (61) is configured to apply a load onto the diesel engine (2) so as to raise a temperature of the particulate filter (10) so that a particulate accumulable in the particulate filter (10) is forcibly removed and that the particulate filter (10) is regenerated. The selecting means (41) is configured to select the isochronous control to control the diesel engine (2) when the load is applied by the pressure regulation valve (61). |
