To provide a fuel injection nozzle provided with injection holes of desired diameter for efficiently raising temperature of fuel oil passing through the same.
Electrolysis plating is applied on an plate material 15 having a base hole 5 formed thereon and metal film 12 is formed on a front and a back surfaces of the plate material 15, and an inner circumference surface of the base hole 5. Consequently, a metal film thick part 12B is formed on an opening edge of the base hole 5 and an injection hole 11 of which diameter of an opening edge corner part of the base hole 5 is made small to a desired size (several μm in an embodiment) by the metal film thick part 12B can be provided. Consequently, temperature of fuel oil passing through the injection hole 11 can be efficiently raised by making diameter of the injection hole 11 small.
KANEKO HIROYUKI
KIRITANI NORIHIKO
MURAKAMI YOSHINORI
SUZUKI TATSUHIRO
Tetsuro Maki
Maki Reiko
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