ENGINE DEVICE

It is an object of the present invention to provide an engine device that can maintain the temperature of exhaust gas at a high temperature, combust and remove particulate matter when an exhaust gas purification device is regenerated. A work vehicle of the present invention includes an engine 5, an exhaust gas purification device 50 arranged on the exhaust path of the engine 5, and an engine control device 311 that controls drive of the engine 5. The engine control device 311 executes a plurality of regeneration controls with which the particulate matter accumulated in the exhaust gas purification device 50 is combusted and removed. The engine control device 311 drives the engine 5 so as to solely combust and remove the particulate matter in the non-work regeneration control out of the plurality of regeneration controls and compulsorily executes isochronous control in which the rotational speed of the engine 5 is maintained constant, irrespective of variation in load of the engine 5.