| 摘要 |
PROBLEM TO BE SOLVED: To prevent the production of smoke, and improve the accelerating response while reducing NOx in a direct injection-type diesel engine with a turbo-supercharger. SOLUTION: The diesel engine with a turbo-supercharger comprising the turbo-supercharger and a fuel injection valve 12 for directly injecting the fuel by the amount corresponding to the engine load to a combustion chamber, further comprises an operating condition detecting means 35 for detecting the operating condition of the engine, and a fuel injection control means 37 for controlling the fuel injection from the fuel injection valve on the basis of the detection by the operating condition detecting means. The fuel injection control means control the fuel injection to execute the premix combustion by pilot injection in a low rotation zone, and then execute the diffuse combustion by main injection, and increase a ration of the pilot injection to the main injection in the initial acceleration period when the acceleration is executed in the low rotation zone.
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