EXHAUST PURIFICATION APPARATUS

摘要

When driving conditions are ready for compulsory regeneration of particulate filter (6) by manual operation, even in the event that the driver forgets the manual operation, automatic compulsory regeneration is carried out. Control unit (9) is designed so as to, under the condition that it is estimated that the amount of particulate accumulation estimated by the control unit (9) (accumulation amount estimating means) on the basis of pressure signal (8a) from pressure sensor (8) (accumulation amount estimating means) falls in the range of manual regeneration exceeding the automatic regeneration range and in the event that diesel engine (1) is in the state of idling and, even after passage of a given time, regeneration button (15) (operating means) is not manually operated, automatically execute fuel addition by fuel injection unit (10) (fuel adding means).