| 摘要 |
PROBLEM TO BE SOLVED: To provide a low-cost fuel injection device equipped with structure capable of coping with respective controls of a LST cut control and an inner pressure control with one solenoid valve for regulating hydraulic pressure. SOLUTION: A fuel injection pump is equipped with a hydraulic timer mechanism HT which performs the adjustment of an injection timing based on fuel pressure in a pump chamber 4, and a load timer mechanism LST which corrects the injection timing according to the load by communicating and intercepting a port 42a of a governor sleeve 42 and a fuel relief passage 40a of a governor shaft 40 with the advancing/retreating of the governor sleeve 42. The device is equipped with a second fuel relief passage 55b which opens to the pump chamber 4 and introduces the fuel in the pump chamber 4, and the solenoid valve 70 for regulating hydraulic pressure having a valve part B which communicates and intercepts the communication of the fuel in the fuel relief passage 40a to the low pressure side, and the communication of the fuel in the second fuel relief passage 55b to the low pressure side. COPYRIGHT: (C)2004,JPO
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