Invention Grant
- Patent Title: Fuel injection valve
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Application No.: US15551459Application Date: 2016-02-05
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Publication No.: US10247158B2Publication Date: 2019-04-02
- Inventor: Takahiro Saito , Nobuaki Kobayashi , Eiji Tamura
- 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: Foley & Lardner LLP
- Priority: JP2015-050291 20150313
- International Application: PCT/JP2016/053505 WO 20160205
- International Announcement: WO2016/147738 WO 20160922
- Main IPC: F02M61/18
- IPC: F02M61/18 ; F02M51/06

Abstract:
A fuel injection valve includes a valve seat 15b and a valve body 27c that cooperate with each other to open and close a fuel passage, a movable element 27 that has the valve body 27c provided at one end thereof and has a fuel passage formed therein, a valve seat member 15 having the valve seat 15b formed thereon, an upstream-side communication hole 27boa that is located upstream of the flow of fuel and connects the inside and outside of the movable element 27, and a downstream-side communication hole 27bob that is located downstream of the flow of fuel and connects the inside and outside of the movable element, in which a guide section for the valve body 27c, where the valve seat member 15 and the valve body 27c are in sliding contact with each other, is provided downstream of the downstream-side communication hole 27bob and in which a fuel passage 17h for connecting in the center axis direction the upstream side and downstream side of the guide section is provided at the same angular position in the circumferential direction of the movable element 27 as the downstream-side communication hole 27bob. With this arrangement, even if a foreign thing is accidently mixed into the fuel passage during the production process, the foreign thing can be removed with a shorter running-in operation time.
Public/Granted literature
- US20180045156A1 FUEL INJECTION VALVE Public/Granted day:2018-02-15
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