Electromagnetic fuel injection device for internal combustion engine

摘要: An injection device satisfies the following conditions: 5 mm≦La≦10 mm, 0 mm≦Lb≦1.0 Lb≦Lc, and 0.5≦Ld/La ≦1.5, wherein La is a length of coil, Lb distance between downstream end surface coil non-magnetic portion, Lc stationary core (or portion), Ld portion. The also 0.2≦Sb/Sa≦0.9, 0.1≦(Lf+Lc)/La≦1.0, Sa cross-sectional area main Sb reduced size Lf