To provide a fuel injection device capable of suppressing the adhesion of deposits to the tip of a fuel injection valve irrespective of the operating state of an internal combustion engine in the fuel injection device having an injection part such as an injection hole for injecting and feeding a fuel to the internal combustion engine at the tip of the fuel injection valve.
This fuel injection device is used for the internal combustion engine 10 having, in a cylinder, a combustion chamber 106 and a fuel injection valve injecting and feeding the fuel into the combustion chamber 106 and igniting an inflammable mixture formed by mixing air with the fuel or the fuel. The fuel injection device comprises the fuel injection valve 2 and jets the fuel from the injection hole part 21 formed at the tip part side toward the combustion chamber. The fuel injection device also comprises two joining parts 83 and 84 joining the both ends of two types of conductors 81 and 82 formed of different metals to each other and power supply devices 91a and 91b supplying power between the conductors 81 and 82. One joining part 84 of these two joining parts 83 and 84 is disposed at the tip part, a voltage is applied between the conductors 81 and 82 by the power supply devices 91a and 91b, and heat is absorbed by the tip part side.
SAITO KIMITAKA
NISHIJIMA YOSHIAKI
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