CONTROL DEVICE OF DIESEL ENGINE

摘要

PROBLEM TO BE SOLVED: To reduce a smoke while preventing a deterioration of a fuel consumption by carrying out a divided injection of main fuel and appropriately controlling the divided injection depending on an operation state in a diesel engine. SOLUTION: A fuel injection valve 5 for injecting a fuel and a fuel injection control means 37 for controlling a fuel injection from this fuel injection valve are provided in a combustion chamber of the diesel engine. This fuel injection control means 37 divides and carries out a main fuel injection for producing a torque to a plurality of times at an operation area from a low load side to a high load side at at least low speed area of the engine for a period from near a compression top dead point to a former stage of an expansion stroke. A starting timing of the injection at a latter stage side of the main fuel injection is delayed at an operation area at a high load side as compared with an operation area at the low load side.