Invention Grant
- Patent Title: Fuel injection valve
- Patent Title (中): 燃油喷射阀
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Application No.: US13660168Application Date: 2012-10-25
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Publication No.: US09121379B2Publication Date: 2015-09-01
- Inventor: Takahiro Saito , Nobuaki Kobayashi , Hiroshi Ohno , Atsushi Nakai , Yoshio Okamoto
- Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.
- Applicant Address: JP Ibaraki
- Assignee: HITACHI AUTOMOTIVE SYSTEMS, LTD.
- Current Assignee: HITACHI AUTOMOTIVE SYSTEMS, LTD.
- Current Assignee Address: JP Ibaraki
- Agency: Foley & Lardner LLP
- Priority: JP2012-029347 20120214
- Main IPC: F02M61/18
- IPC: F02M61/18 ; F02M61/16

Abstract:
In a fuel injection valve, a pipe line through which fuel is uniformly caused to flow is supposed from a flow quantity of fuel flowing into each of communication passages which is communicated between a corresponding one of a plurality of swirl generating chambers and an opening section of a valve seat member and, if a diameter of the pipe line is assumed to be da and a diameter of each of injection holes is assumed to be d0, da/d0 is set such that a spray angle of fuel injected from each of the injection holes provides a desired spray angle and the communication passages and the injection holes are designed such that at least one of fuel sprays injected from the respective injection holes is contacted on any other fuel sprays at a lower position than a liquid film part.
Public/Granted literature
- US20130206870A1 FUEL INJECTION VALVE Public/Granted day:2013-08-15
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