Patent Number: 6,915,968

Title: Fuel injector

Abstract: To enable the inclination of the injection direction and the distribution of the penetration force of spray to be adjusted over a wide range, and an axially symmetrical spray shape to be obtained even when the injection hole is inclined, or the shape of the spray to be changed without inclining the injection hole, a fuel passageway 203 is provided as a swirling force adjustment means between the valve seat 201 and injection hole 101 of the fuel injector. This swirling force adjustment means adjusts the distribution of the swirling force of the fuel flowing into injection hole 101, and thus adjusts the spray shape obtained as a result.

Inventors: Abe; Motoyuki (Chiyoda, JP), Okamoto; Yoshio (Minori, JP), Yamakado; Makoto (Tsuchiura, JP), Ishikawa; Tohru (Kitaibaraki, JP), Shimizu; Shuichi (Oarai, JP)

Assignee: Hitachi, Ltd.

International Classification: F02M 61/00 (20060101); F02M 61/16 (20060101); F02M 61/18 (20060101); F02B 75/12 (20060101); F02M 69/04 (20060101); F02B 75/00 (20060101); F02M 51/06 (20060101); R05R 001/30 (); F02M 059/00 (); F02M 039/00 ()

Expiration Date: 7/12/02017