Invention Grant
- Patent Title: Electro-magneto fuel injector
- Patent Title (中): 电磁燃料喷射器
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Application No.: US12420901Application Date: 2009-04-09
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Publication No.: US08371515B2Publication Date: 2013-02-12
- Inventor: Motoyuki Abe , Masahiko Hayatani , Atsushi Sekine , Yasuo Namaizawa , Tohru Ishikawa , Noriyuki Maekawa
- Applicant: Motoyuki Abe , Masahiko Hayatani , Atsushi Sekine , Yasuo Namaizawa , Tohru Ishikawa , Noriyuki Maekawa
- Applicant Address: JP Tokyo
- Assignee: Hitachi, Ltd.
- Current Assignee: Hitachi, Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Crowell & Moring LLP
- Priority: JP2006-040929 20060217
- Main IPC: F02M51/06
- IPC: F02M51/06 ; F02M51/00 ; F02M61/20 ; F02M61/12 ; F02M61/10

Abstract:
An injector used for an internal combustion engine includes a valve needle which closes a fuel passage by contacting a valve seat and opens the fuel passage by separating from the valve seat. A coil and a magnetic core are provided to drive the valve needle, and an anchor is held in a relatively displaceable state with respect to the valve needle. A first biasing device biases the valve needle in a direction opposite to a direction of a drive force, and a second biasing device biases the anchor in the direction of the drive force with a set load smaller than that of the first biasing device. A restricting feature restricts relative displacement of the anchor with respect to the valve needle in the direction of the drive force.
Public/Granted literature
- US20090188996A1 Electro-Magneto Fuel Injector Public/Granted day:2009-07-30
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