Invention Grant
- Patent Title: Fuel injection valve
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Application No.: US16508369Application Date: 2019-07-11
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Publication No.: US11319911B2Publication Date: 2022-05-03
- Inventor: Makoto Saizen , Shuichi Matsumoto , Keita Imai , Moriyasu Goto
- 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: JPJP2017-013369 20170127,JPJP2017-040731 20170303,JPJP2017-229426 20171129
- Main IPC: F02M51/06
- IPC: F02M51/06 ; F02M61/10

Abstract:
A fuel injection valve includes: a coil; a stationary core to generate a magnetic force; a movable structure including a moving core and a valve body and internally having a movable flow passage; and a body that internally accommodates the movable structure and internally has a part of the flow passage. The movable structure includes a throttle portion at which a passage area of the movable flow passage is partially throttled. The flow passage includes a throttle flow passage defined by the throttle portion and a separate flow passage between the movable structure and the body. A passage area of the separate flow passage is smaller than a passage area of the throttle flow passage. A position of the separate flow passage in a direction perpendicular to a moving direction of the movable structure is different from an outermost peripheral position of the moving core.
Public/Granted literature
- US20190331076A1 FUEL INJECTION VALVE Public/Granted day:2019-10-31
Information query