公开(公告)号：US20220056864A1

公开(公告)日：2022-02-24

申请号：US17404337

申请日：2021-08-17

Applicant: DENSO CORPORATION

Inventor： Fumiaki ARIKAWA ,  Shuhei YAMAMOTO ,  Makoto OTSUBO ,  Takanobu AOCHI ,  Yasuyuki HASEO ,  Shingo KITANI ,  Hajime KATAOKA ,  Satoshi HORITA

IPC: F02D41/20 ,  F02D41/30 ,  F02D41/06 ,  F02D41/22

Abstract: A fuel injection device includes: an injector, an electronic control device, a communication circuit, and a power supply circuit. A memory is provided in the injector for storing fuel injection control data set for each injector. The electronic control device controls a fuel injection of the injector based on the control data. The communication circuit is installed for each injector, and enables the electronic control device to access the memory via wireless communication. The power supply circuit is installed for each injector, has a power source that supplies electric power to the communication circuit, and receives electric power to charge the power source from a drive line that connects the electronic control device and a drive unit of the injector.

公开(公告)号：US20180115210A1

公开(公告)日：2018-04-26

申请号：US15595146

申请日：2017-05-15

Applicant: DENSO CORPORATION

Inventor： Kazuya SASSA ,  Naofumi ADACHI ,  Shingo KITANI

IPC: H02K3/30 ,  H02K33/02 ,  H02K1/34 ,  H02K3/28

CPC classification number: H02K3/30 ,  H01F7/1638 ,  H01F2007/1676 ,  H02K1/34 ,  H02K3/28 ,  H02K33/02

Abstract: The present disclosure provides an electromagnetic actuator that drives an armature by an electromagnetic force. The electromagnetic actuator includes a stator, a coil, and an insulator. The stator is formed of a magnetic material and has a cylindrical portion. The coil is disposed outside of the stator. The coil generates a magnetic field when being energized. The insulator is disposed in a particular region of the stator facing the coil in a radial direction. The insulator extends partially along the stator in a circumferential direction and suppresses a current flowing through the stator in the circumferential direction. The stator is continuously formed entirely along the circumferential direction by the magnetic material.