公开(公告)号：US20190331076A1

公开(公告)日：2019-10-31

申请号：US16508369

申请日：2019-07-11

Applicant: DENSO CORPORATION

Inventor： Makoto SAIZEN ,  Shuichi MATSUMOTO ,  Keita IMAI ,  Moriyasu GOTO

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.