| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a fuel injection device capable of controlling generation of deposits without any great increase of cost or fuel consumption caused by adding an air supply means consisting of an air pump, an air introduction passage or the like. <P>SOLUTION: A fuel addition valve 100 which is a fuel injection device has a first needle 21 for opening/closing a first valve unit 91, and a second needle 22 for opening/closing a second valve unit 92. A movable core 50 for dividing a fuel chamber 30 into a first fuel chamber 31 and a second fuel chamber 32 is fixed to the first needle 21, and the second fuel chamber 32 and the first fuel chamber 31 are communicated with each other via a communication hole 51. In the fuel addition valve 100, when the movable core 50 is displaced to the first fuel chamber 31 side from the fuel injection state, the second valve unit 92 is closed, then, a second needle 22 and a first needle 21 are separated from each other, and the first valve unit 91 is closed by the first needle 21 to stop the fuel injection. <P>COPYRIGHT: (C)2013,JPO&INPIT |
