| 摘要 |
Provided is a fuel injection device that is capable of shortening penetration. The fuel injection device according to the present invention is provided with: a valve body on which a valve-body-side seating surface is formed; a valve-seat-side seating surface that contacts the valve-body-side seating surface; and an injection port provided at the downstream side relative to the location where the valve-body-side seating surface contacts the valve-seat-side seating surface. In addition, the present invention is characterized in that the valve body has a projection portion formed from the valve-body-side seating surface toward the injection port, and the projection portion is formed such that the dimension thereof in a fuel flowing direction between the seats is smaller than the radius of the upstream opening surface of the injection port. |
