Invention Grant
- Patent Title: Fuel injection valve
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Application No.: US16830812Application Date: 2020-03-26
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Publication No.: US11242831B2Publication Date: 2022-02-08
- Inventor: Shinsuke Yamamoto , Kouichi Mochizuki , Atsuya Okamoto
- Applicant: DENSO CORPORATION
- Applicant Address: JP Kariya
- Assignee: DENSO CORPORATION
- Current Assignee: DENSO CORPORATION
- Current Assignee Address: JP Kariya
- Agency: Nixon & Vanderhye P.C.
- Priority: JPJP2017-189884 20170929,JPJP2018-169994 20180911
- Main IPC: F02M51/06
- IPC: F02M51/06 ; F16K31/06

Abstract:
A fuel injection valve includes a valve body, a fixed core, a movable core, a spring, a cup, and a guide. The cup contacts the spring and the valve body to transmit a valve closing elastic force to the valve body, and includes a cylindrical portion having a cylindrical shape. The guide has a sliding surface on which an outer peripheral surface of the cylindrical portion slides so as to guide the movement of the cylindrical portion in an axial direction while restricting the movement of the cylindrical portion in a radial direction. The guide has a recessed surface connected to the sliding surface and recessed to increase a gap between the recessed surface and the cup in the radial direction.
Public/Granted literature
- US20200224621A1 FUEL INJECTION VALVE Public/Granted day:2020-07-16
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