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    FUEL INJECTION VALVE
    21.
    发明申请
    FUEL INJECTION VALVE 审中-公开

    公开(公告)号：US20170260952A1

    公开(公告)日：2017-09-14

    申请号：US15510299

    申请日：2015-07-10

    Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.

    Inventor： Atsushi NAKAI ,  Yoshihito YASUKAWA ,  Masashi SUGAYA ,  Kiyotaka OGURA ,  Takao MIYAKE ,  Ryo KUSAKABE

    IPC: F02M61/20

    CPC classification number: F02M61/20 ,  F02M51/0685 ,  F02M61/168 ,  F02M2200/8061

    Abstract: A fuel injection valve includes: a valve member; an anchor configured to be relatively displaceable in a valve opening-and-closing direction with respect to the valve member; a fixed core; a first spring biasing the valve member in a valve closing direction; a second spring biasing the anchor in the valve opening direction from an opposite side of the fixed core; and a third spring biasing the anchor in the valve closing direction from the fixed core side and has a biasing force smaller than a biasing force of the first spring and larger than a biasing force of the second spring where engagement portions are provided in both the anchor and the valve member to be engaged with each other when the anchor is displaced in the valve opening direction with respect to the valve member, thereby regulating the displacement of the anchor in the valve opening direction.

    Electromagnetic Fuel Injection Valve
    23.
    发明申请
    Electromagnetic Fuel Injection Valve 审中-公开
    电磁燃油喷射阀

    公开(公告)号：US20170067430A1

    公开(公告)日：2017-03-09

    申请号：US15355380

    申请日：2016-11-18

    Applicant: Hitachi Automotive Systems, Ltd.

    Inventor： Motoyuki ABE ,  Ryo KUSAKABE ,  Hideharu EHARA ,  Yoshihito YASUKAWA

    IPC: F02M51/06 ,  F02M61/20

    CPC classification number: F02M51/0675 ,  F02M51/0685 ,  F02M61/12 ,  F02M61/20

    Abstract: An electromagnetic fuel injection valve includes a valve element, a movable element, a magnetic core, and a coil. The movable element includes an inner movable element that faces a radially inner part of the magnetic attractive surface of the magnetic core in a moving direction of the valve element. The inner movable element is biased in a valve closing direction by a first spring. The movable element also includes an outer movable element that faces a radially outer part of the magnetic attractive surface of the magnetic core in the moving direction of the valve element. The outer movable element biased in a valve opening direction by a second spring.

    Abstract translation: 电磁燃料喷射阀包括阀元件，可动元件，磁芯和线圈。 可动元件包括在阀元件的移动方向上面向磁芯的吸引磁性表面的径向内部的内部可移动元件。 内部可移动元件通过第一弹簧以关闭方向偏置。 可移动元件还包括外部可移动元件，该外部可移动元件在阀元件的移动方向上面对磁芯的吸引磁性表面的径向外部。 外部可动元件通过第二弹簧以阀打开方向偏压。

    Drive Device for Fuel Injection Device, and Fuel Injection System
    25.
    发明申请
    Drive Device for Fuel Injection Device, and Fuel Injection System 有权
    燃油喷射装置驱动装置和燃油喷射系统

    公开(公告)号：US20160177855A1

    公开(公告)日：2016-06-23

    申请号：US14907908

    申请日：2013-07-29

    Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.

    Inventor： Ryo KUSAKABE ,  Motoyuki ABE ,  Ayumu HATANAKA ,  Toshihiro AONO ,  Teppei HIROTSU ,  Hideyuki SAKAMOTO ,  Masahiro TOYOHARA ,  Osamu MUKAIHARA ,  Takao FUKUDA ,  Yoshihito YASUKAWA ,  Akiyasu MIYAMOTO

    IPC: F02D41/20 ,  F02M65/00 ,  F02M51/06

    CPC classification number: F02D41/20 ,  F02D41/0085 ,  F02D2041/2003 ,  F02D2041/2037 ,  F02D2041/2055 ,  F02D2041/2058 ,  F02D2200/063 ,  F02M51/0685 ,  F02M61/1833 ,  F02M65/005

    Abstract: A drive device capable of detecting individual variations of an injection quantity of a fuel injection device of each cylinder and adjusting a current waveform provided to an injection pulse width and a solenoid such that the individual variations of the fuel injection devices are reduced. The fuel injection device in the present invention includes a valve body that closes a fuel passage by coming into contact with a valve seat and opens the fuel passage by separating from the valve seat and a magnetic circuit constructed of a solenoid, a fixed core, a nozzle holder, a housing, and a needle and when a current is supplied to the solenoid, a magnetic suction force acts on the needle and the needle has a function to open the valve body by colliding against the valve body after performing a free running operation and changes of acceleration of the needle due to collision of the needle against the valve body are detected by a current flowing through the solenoid.

    Abstract translation: 一种驱动装置，能够检测每个气缸的燃料喷射装置的喷射量的各个变化，并且调节提供给喷射脉冲宽度的电流波形和螺线管，使得燃料喷射装置的各个变化减小。 本发明的燃料喷射装置包括阀体，该阀体通过与阀座接触而关闭燃料通路，并且通过与阀座分离而打开燃料通道，以及由螺线管，固定铁芯， 喷嘴保持器，壳体和针，并且当向螺线管供应电流时，磁吸力作用在针上，并且针具有通过在执行自由运行操作之后与阀体碰撞来打开阀体的功能 并且通过流过螺线管的电流来检测针头与阀体的碰撞引起的针的加速度的变化。

    Electromagnetic Valve Control Unit and Internal Combustion Engine Control Device Using Same
    26.
    发明申请
    Electromagnetic Valve Control Unit and Internal Combustion Engine Control Device Using Same 审中-公开
    电磁阀控制装置及内燃机控制装置

    公开(公告)号：US20160076498A1

    公开(公告)日：2016-03-17

    申请号：US14784653

    申请日：2014-03-07

    Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.

    Inventor： Toshihiro AONO ,  Motoyuki ABE ,  Ryo KUSAKABE ,  Teppei HIROTSU ,  Ayumu HATANAKA ,  Hideyuki SAKAMOTO ,  Takao FUKUDA ,  Masahiro TOYOHARA ,  Osamu MUKAIHARA

    IPC: F02M51/06

    CPC classification number: F02M51/061 ,  F02D41/20 ,  F02D41/2467 ,  F02D2041/1432 ,  F02D2041/2051 ,  F02D2041/2055 ,  F02D2041/2058 ,  F02M51/0671

    Abstract: Provided are an electromagnetic valve control unit and a fuel injection control device using the same that can precisely detect a change of an operating state of an electromagnetic valve, that is, a valve opening time or a valve closing time of the electromagnetic valve, precisely correct a drive voltage or a drive current applied to the electromagnetic valve, and appropriately control opening/closing of the electromagnetic valve, with a simple configuration. In an electromagnetic valve control unit for controlling opening/closing of an electromagnetic valve by a drive voltage and a drive current to be applied, the drive voltage and the drive current applied to the electromagnetic valve are corrected on the basis of a detection time of an inflection point from time series data of the drive voltage and the drive current when the electromagnetic valve is opened/closed.

    Abstract translation: 提供一种电磁阀控制单元和使用该电磁阀控制单元的燃料喷射控制装置，其能够精确地检测电磁阀的操作状态的变化，即电磁阀的打开时间或阀关闭时间，精确地正确 施加到电磁阀的驱动电压或驱动电流，并且以简单的结构适当地控制电磁阀的打开/关闭。 在用于通过驱动电压和施加的驱动电流来控制电磁阀的打开/关闭的电磁阀控制单元中，基于检测时间来校正施加到电磁阀的驱动电压和驱动电流 来自驱动电压的时间序列数据和电磁阀打开/关闭时的驱动电流的拐点。

    DEVICE FOR CONTROLLING HIGH-PRESSURE FUEL SUPPLY PUMP, AND HIGH-PRESSURE FUEL SUPPLY PUMP
    27.
    发明申请
    DEVICE FOR CONTROLLING HIGH-PRESSURE FUEL SUPPLY PUMP, AND HIGH-PRESSURE FUEL SUPPLY PUMP 审中-公开

    公开(公告)号：US20200318592A1

    公开(公告)日：2020-10-08

    申请号：US16305366

    申请日：2017-03-15

    Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.

    Inventor： Masanori WATANABE ,  Shunsuke ARITOMI ,  Masayuki SUGANAMI ,  Ryo KUSAKABE

    IPC: F02M59/36 ,  F02D41/38

    Abstract: To reduce collision noise caused when an electromagnetic valve of a high-pressure fuel supply pump is opened. Therefore, in a control device for controlling a high-pressure fuel supply pump including: an anchor; a fixed core configured to attract the anchor with an electromagnetic force; a suction valve configured to be opened or closed when the anchor is sucked by the fixed core; and an electromagnetic force generation unit configured to generate the electromagnetic force when applied with a driving voltage, it can be achieved by providing a control unit configured to perform control to lower a driving current from a peak current before a timing at which the anchor is sucked by the fixed core and collides in an operation state where an engine is under no load and an engine rotation speed is equal to or less than a set rotation speed.

    HIGH-PRESSURE FUEL PUMP
    28.
    发明申请
    HIGH-PRESSURE FUEL PUMP 审中-公开

    公开(公告)号：US20200248663A1

    公开(公告)日：2020-08-06

    申请号：US16756160

    申请日：2018-10-29

    Applicant: Hitachi Automotive Systems, Ltd.

    Inventor： Kenichiro TOKUO ,  Satoshi USUI ,  Ryo KUSAKABE

    IPC: F02M59/44

    Abstract: To provide a high-pressure fuel pump capable of ensuring good magnetic properties and reliability for cracking. Therefore, the fixed core 39 is precipitation hardening type ferritic stainless steel (ferritic precipitation hardening type metal). The anchor 36 is precipitation hardening type ferritic stainless steel attracted by the magnetic attraction force of the fixed core 39. The outer core 38 has an inner peripheral surface on which the outer peripheral surface of the anchor 36 slides. The seal ring 48 is formed of a material having hardness lower than that of the fixed core 39 and the anchor 36, and connects the fixed core 39 and the outer core 38.

    DRIVE DEVICE FOR FUEL INJECTION DEVICE
    29.
    发明申请
    DRIVE DEVICE FOR FUEL INJECTION DEVICE 审中-公开

    公开(公告)号：US20200088122A1

    公开(公告)日：2020-03-19

    申请号：US16468535

    申请日：2017-12-20

    Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.

    Inventor： Ryo KUSAKABE ,  Masayuki SARUWATARI ,  Noriyuki MAEKAWA

    IPC: F02D41/20 ,  F02D41/40

    Abstract: Provided is a control device of a fuel injection device which can stabilize a behavior of a valve even when a voltage of a voltage source varies, and can reduce a deviation of an injection amount.A control device 150 of a fuel injection device 101 includes a valve 214, a coil 205 which generates a magnetic attraction force to attract a movable member 202 which drives the valve 214, and a voltage source. The fuel injection device 101 applies a voltage to the coil 205 on the basis of an injection pulse, causes a drive current to flow to the coil 205 until the current becomes a maximum current to attract the movable member 202, and drives the valve 214 to inject fuel. The drive current flowing to the coil 205 or a voltage of the voltage source is detected before the injection pulse is stopped. In a case where the detected drive current or the voltage is equal to or less than a setting, a width of the injection pulse or an injection pulse different from the injection pulse is corrected to be long.

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