Invention Grant
- Patent Title: Fuel injection valve
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Application No.: US14765489Application Date: 2014-01-24
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Publication No.: US09599083B2Publication Date: 2017-03-21
- Inventor: Eiji Ishii , Motoyuki Abe , Yoshihito Yasukawa , Kiyotaka Ogura , Hideharu Ehara , Tohru Ishikawa
- Applicant: Hitachi Automotive Systems, Ltd.
- Applicant Address: JP Hitachinaka-shi
- Assignee: Hitachi Automotive Systems, Ltd.
- Current Assignee: Hitachi Automotive Systems, Ltd.
- Current Assignee Address: JP Hitachinaka-shi
- Agency: Crowell & Moring LLP
- Priority: JP2013-019059 20130204
- International Application: PCT/JP2014/051436 WO 20140124
- International Announcement: WO2014/119471 WO 20140807
- Main IPC: B05B1/30
- IPC: B05B1/30 ; F02M63/00 ; F02M51/06 ; F02M61/12 ; F02M61/18

Abstract:
In a fuel injection valve used in an internal combustion engine, fuel spray travel distance is shortened.There is provided a fuel injection valve including a seat member, in which the seat member includes a conical seat surface that seats fuel by coming in contact with a valve body, and inlet opening portions of a plurality of fuel injection holes on the conical seat surface, and is configured such that an axis of the injection hole connecting the centers of an inlet and an outlet of the fuel injection hole is along a plurality of different conical surfaces, and in which, in an outlet section that is configured of a plane parallel to an inlet section of the inlet opening portion of the fuel injection hole and is positioned at the outlet of the fuel injection hole, the seat member includes the injection hole in which a major axis direction of an ellipse of the outlet section has an inclination angle of greater than 0 degrees with respect to a straight line in a fuel injection direction, which is obtained by projecting the axis of the injection hole on the outlet section, and an inclination angle of a degree before being perpendicular to the straight line in the fuel injection direction.
Public/Granted literature
- US20150377202A1 Fuel Injection Valve Public/Granted day:2015-12-31
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