Exhaust treatment device for diesel engine

An exhaust treatment device for a diesel engine including:

• a diesel particulate filter (DPF) disposed in an engine exhaust passage;
• a combustible gas generator including a gas generation catalyst;
• and an electronic control device,
• a regeneration process of the DPF being performed according to an instruction of the electronic control device,
• in the regeneration process of the DPF a liquid fuel and air being supplied to the combustible gas generator during engine operation, a combustible gas being generated by a catalytic reaction of an air-fuel mixture gas of the liquid fuel and the air due to the gas generation catalyst, a temperature of an engine exhaust being raised by combustion of the combustible gas, and particulate material (PM) accumulated in the DPF being burned off by heat of the engine exhaust,
• the exhaust treatment device for a diesel engine comprising:
• a parked regeneration requirement notification component;
• and
• a parked regeneration start operation component, wherein
• the regeneration process of the DPF includes an automatic regeneration process and a parked regeneration process,
• the automatic regeneration process is automatically started when an estimation value of the PM accumulated in the DPF reaches a predetermined automatic regeneration start determination value, and
• the parked regeneration process is performed when a first condition and a second condition are satisfied, the first condition being that the parked regeneration requirement notification component performs a notification of a parked regeneration requirement when a number of cancellation of the automatic regeneration process reaches a predetermined parked regeneration requirement determination value or more, the second condition being that the parked regeneration start operation component is subjected to a start operation during a parked state in which an engine equipped machine is neither traveling nor working.