| 摘要 |
An object is to provide a diesel engine (2) capable of reliably preventing an excessive rise in temperature inside a particulate filter (10) and capable of rapidly enabling driving in a low-rotation and low-load area when there is no possibility of excessive rise in temperature, making it possible to prevent unnecessary consumption of fuel. A diesel engine (2) includes a diesel engine (2) exhaust emission purifier (1). The diesel engine (2) exhaust emission purifier (1) includes a particulate filter (10) and regenerating means (30) for forcibly removing a particulate accumulable in the particulate filter (10) to regenerate the particulate filter (10). The diesel engine (2) is configured to prohibit the diesel engine (2) from entering a predetermined low-rotation and low-load area if a load rotation changes when the particulate filter (10) has a temperature that is equal to or higher than a first predetermined temperature T1 and when the particulate is accumulated in an amount that is equal to or more than a predetermined amount. The diesel engine (2) includes notifying means (40) for notifying an operator that entering the low-rotation and low-load area is prohibited.
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