Hitachi, Ltd.

Kiyoshi Amo

Hiroshi Fujii

Yuzo Kadomukai

Yoshio Okamoto

Makoto Yamakado

Tohru Ishikawa

Shigenori Togashi

Ayumu Miyajima

Hiromasa Kubo

At an outlet portion of an injection hole () of a fuel injection valve (), through removal of a part (AB) of a wall forming the injection hole (), a restriction to a spray flow is released, thereby, a deflection spray is formed in which the spray is rich at the side of restriction released and is learn at the side of restricted, accordingly, ignition property of an internal combustion engine is improved, and an optimum spray is realized which reduces exhaust amount of unburnt gas components.

Fuel injection valve and internal combustion engine mounting the same

At an outlet portion of an injection hole ( ) of a fuel injection valve ( ), through removal of a part (A B) of a wall forming the injection hole ( ), a restriction to a spray flow is released, thereby, a deflection spray is formed in which the spray is rich at the side of restriction released and is learn at the side of restricted, accordingly, ignition property of an internal combustion engine is improved, and an optimum spray is realized which reduces exhaust amount of unburnt gas components.

At an outlet portion of an injection hole ( ) of a fuel injection valve ( ), through removal of a part (A B) of a wall forming the injection hole ( ), a restriction to a spray flow is eliminated, thereby, a deflection of the spray occurs in which the spray is rich at the side where this restriction is released and is lean at the side that is restricted. Thus, the ignition property of an internal combustion engine is improved, and an optimum spray is realized which reduces the amount of unburnt gas components being exhausted.

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Chiyoda, Japan

Kiyoshi Amo