Invention Grant
- Patent Title: Electromagnetic fuel injector
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Application No.: US14774925Application Date: 2014-01-27
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Publication No.: US10288022B2Publication Date: 2019-05-14
- Inventor: Yoshihito Yasukawa , Hideharu Ehara , Tohru Ishikawa , Kiyotaka Ogura , Motoyuki Abe , Ryo Kusakabe , Akiyasu Miyamoto
- 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: JP2013-051103 20130314
- International Application: PCT/JP2014/051616 WO 20140127
- International Announcement: WO2014/141757 WO 20140918
- Main IPC: F02M51/06
- IPC: F02M51/06 ; F02M63/00 ; F02M61/04

Abstract:
In an electromagnetic fuel injection which is structured such that both end surfaces of an inner circumferential iron core portion and an outer circumferential iron core portion face a movable iron core, and a non-magnetic portion made of a metal material is provided between both end surfaces, an object of the present invention is to realize a structure of the electromagnetic fuel injector in which a surface of a target object is unlikely to be affected by a heat treatment with the surface facing the movable iron core. In an electromagnetic fuel injector 1 of the present invention which is structured such that both end surfaces of an inner circumferential iron core portion 401a and an outer circumferential iron core portion 401b face a movable iron core 402, and a non-magnetic portion 401d made of a metal material is provided between both end surfaces, in order to achieve this object, heat in a target member to be heat treated is generated by applying energy to a target member's surface which is different from a target member's surface that faces the movable iron core 402. More preferably, energy is applied to a surface different from a surface on a side that faces the movable iron core 402.
Public/Granted literature
- US20160025052A1 Electromagnetic Fuel Injector Public/Granted day:2016-01-28
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