To provide a fuel injection nozzle used for a fuel injection device capable of providing sufficiently large fuel-injection angle.
A large diameter injection hole 11 and a small diameter injection hole 12 are formed on a plate material 5 which is a base material of a fuel injection nozzle 10. Temperature of fuel oil is raised to a desired temperature and evaporation efficiency is improved, and also viscosity of fuel oil is dropped and injection angle of fuel oil is widened by heating the plate material 5 itself to raise temperature of fuel oil passing through the large diameter injection hole 11 and the small diameter injection hole 12. The large diameter injection hole 11 and the small diameter injection hole 12 of which diameter and length are different are formed on the plate material 5. Consequently, fuel oil of high penetration is injected from the large diameter injection hole 11 and volatile fuel oil of low penetration is injected from the small diameter injection hole 12, and fuel oil of different penetration and volatility can be simultaneously injected.
KANEKO HIROYUKI
KIRITANI NORIHIKO
Tetsuro Maki
Maki Reiko
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