| 摘要 |
PROBLEM TO BE SOLVED: To provide a fuel injection device of internal combustion engine which can feed the fuel to a cylinder even in the time the feeding fuel pressure is low, without providing a large electric driving type outer pump. SOLUTION: In order to feed the fuel to a cylinder 2, a solenoid type injector 6 is provided together with a piezo type injector 3. As a result, the fuel can be fed to the cylinder 2 by the solenoid type injector 6, when the fuel cannot be fed to the cylinder 3 by the piezo type injector 3, that is, even when the fuel pressure fed to the injector 3 is low. That is, the necessity to provide a large electric driving type outer pump in order to increase the fuel pressure fed to the injector can be eliminated.
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