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    Fuel Injection Device
    11.
    发明申请
    Fuel Injection Device 有权
    燃油喷射装置

    公开(公告)号：US20150354515A1

    公开(公告)日：2015-12-10

    申请号：US14763029

    申请日：2014-01-10

    Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.

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

    IPC: F02M51/06 ,  F02M61/04

    CPC classification number: F02M51/0657 ,  F02D41/20 ,  F02M45/00 ,  F02M45/08 ,  F02M51/061 ,  F02M51/0625 ,  F02M51/066 ,  F02M61/04 ,  F02M61/10 ,  F02M61/20 ,  F02M2200/08

    Abstract: A fuel injection valve having a variable stroke mechanism is constructed. A valve body provided to be slidable; a first movable element for cooperating with the valve body; an inner fixed iron core provided at a position to oppose a second movable element; an outer fixed iron core; and a coil are included. A lift amount of the second movable element is set larger than a lift amount of the first movable element, and a portion of the second movable element is projected into the first movable element. In this way, large and small lifts are constituted by using a difference between magnetic attractive forces that are generated in the first movable element and the second movable element by a current supplied to the coil.

    Abstract translation: 具有可变冲程机构的燃料喷射阀构成。 设置为可滑动的阀体; 用于与阀体配合的第一可移动元件; 内固定铁芯，设置在与第二可移动元件相对的位置; 外固定铁芯; 并包括线圈。 第二可移动元件的提升量被设定为大于第一可移动元件的提升量，并且第二可移动元件的一部分突出到第一可移动元件中。 以这种方式，通过使用通过提供给线圈的电流在第一可移动元件和第二可移动元件中产生的吸引力之间的差异来构成大而小的电梯。

    Fuel Injector
    12.
    发明申请
    Fuel Injector 审中-公开
    喷油器

    公开(公告)号：US20150021414A1

    公开(公告)日：2015-01-22

    申请号：US14510581

    申请日：2014-10-09

    Applicant: Hitachi Automotive Systems, Ltd.

    Inventor： Yoshihito YASUKAWA ,  Yoshio OKAMOTO ,  Takahiro SAITO ,  Masanori ISHIKAWA ,  Eiji ISHII ,  Nobuaki KOBAYASHI ,  Noriyuki MAEKAWA

    IPC: F02M61/16 ,  F02B31/00

    CPC classification number: F02M61/162 ,  F02B31/00 ,  F02M51/061 ,  F02M61/1853 ,  F02M61/188

    Abstract: A fuel injection valve includes: a swirl chamber having an inner peripheral wall formed to be gradually increased in curvature toward a downstream side from an upstream side; a swirl passage, through which a fuel is introduced into the swirl chamber; and a fuel injection port opened to the swirl chamber, wherein the swirl chamber and the swirl passage are formed so that a side wall of the swirl passage connected to a downstream end side of the swirl chamber, or an extension thereof is made not to intersect a downstream side portion of the inner peripheral wall of the swirl chamber, or an extension thereof,

    Abstract translation: 燃料喷射阀包括：旋流室，其具有形成为从上游侧向下游侧逐渐增加的曲率的内周壁; 涡流通道，燃料通过该涡流通道引入涡流室; 以及向所述涡流室开口的燃料喷射口，其特征在于，所述涡流室和所述涡流通路形成为使得与所述涡流室的下游端侧连接的涡旋通路的侧壁或其旋转延伸部不相交 涡流室的内周壁的下游侧部分或其延伸部，

    Fuel Injection Valve
    13.
    发明申请
    Fuel Injection Valve 有权
    燃油喷射阀

    公开(公告)号：US20130256428A1

    公开(公告)日：2013-10-03

    申请号：US13768718

    申请日：2013-02-15

    Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.

    Inventor： Yoshio OKAMOTO ,  Nobuya SEKIYAMA ,  Yoshihito YASUKAWA ,  Noriyuki MAEKAWA ,  Nobuaki KOBAYASHI ,  Takahiro SAITO

    IPC: F02M61/16

    CPC classification number: F02M61/162 ,  B05B1/185 ,  B05B1/341 ,  F02M51/0664 ,  F02M61/163 ,  F02M61/1806 ,  F02M61/1813 ,  F02M61/182 ,  F02M61/1846 ,  F02M61/1853

    Abstract: An object of the present invention is to provide a fuel injection valve that is made superior in atomization performance by preventing an influence of minute deformation occurring when an orifice plate is assembled to a nozzle body, thereby reducing fuel leakage from a swirling passage to increase the strength of a swirl flow. The valve includes a valve body openable and closable to jet fuel; a nozzle body having a valve seat surface capable of coming into contact with the valve body to block the jet of fuel; and an orifice plate disposed downstream of the valve seat surface and having a plurality of fuel injection holes adapted to jet swirl fuel. The nozzle body has an end face portion with a downwardly convex inclined surface.

    Abstract translation: 本发明的目的是提供一种燃料喷射阀，其通过防止当孔板组装到喷嘴体时发生微小变形的影响而使雾化性能优异，从而减少来自涡流通道的燃料泄漏，从而增加 涡流的强度。 该阀包括可开启和关闭以喷射燃料的阀体; 具有能够与阀体接触以阻挡燃料喷射的阀座表面的喷嘴体; 以及设置在所述阀座表面的下游并具有适于喷射涡流燃料的多个燃料喷射孔的孔板。 喷嘴体具有向下凸出的倾斜表面的端面部分。

    SPARK-IGNITION DIRECT FUEL INJECTION VALVE
    15.
    发明申请
    SPARK-IGNITION DIRECT FUEL INJECTION VALVE 审中-公开

    公开(公告)号：US20180363615A1

    公开(公告)日：2018-12-20

    申请号：US16012275

    申请日：2018-06-19

    Applicant: Hitachi Automotive Systems, Ltd.

    Inventor： Yoshihito YASUKAWA ,  Kiyotaka OGURA ,  Takao MIYAKE ,  Eiji ISHII ,  Motoyuki ABE ,  Tohru ISHIKAWA

    IPC: F02M61/18 ,  F02M67/12 ,  F02M51/06

    Abstract: A spark-ignition direct fuel injection valve includes, at least, a seat member provided with a fuel injection hole and a valve seat and a valve body which controls fuel injection from the injection hole by contacting and separating from the valve seat. In the spark-ignition direct fuel injection valve: the injection hole has an injection hole inlet which is open inwardly of the seat member and an injection hole outlet which is open outwardly of the seat member; an opening edge of the injection hole inlet has a first round-chamfered portion formed on an upstream side with respect to a fuel flow toward the injection hole inlet; and an extending length (L) of the injection hole does not exceed three times a hole diameter (D) of the injection hole.

    ELECTROMAGNETIC VALVE
    17.
    发明申请
    ELECTROMAGNETIC VALVE 审中-公开

    公开(公告)号：US20180252192A1

    公开(公告)日：2018-09-06

    申请号：US15754499

    申请日：2016-07-25

    Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.

    Inventor： Masashi SUGAYA ,  Kiyotaka OGURA ,  Takao MIYAKE ,  Yoshihito YASUKAWA

    IPC: F02M51/06 ,  F02M61/10 ,  F16K31/06

    Abstract: Provided is an electromagnetic valve capable of stabilizing an injection amount even when injection is performed while an intermediate member continues to be displaced after valve closing and returns to a closed valve standby state.For that purpose, a valve body 303 opens or closes a flow path. A movable iron core 404 moves the valve body 303 in a valve opening direction using a magnetic attraction force. An intermediate member 414 forms a preliminary stroke gap (g1) between the movable iron core 404 and the valve body 303 in a closed valve state. A stopper portion 410c collides with the intermediate member 414 when the intermediate member 414 moves in a direction in which the preliminary stroke gap (g1) is reduced.

    Fuel Injection Valve
    18.
    发明申请
    Fuel Injection Valve 审中-公开

    公开(公告)号：US20170292488A1

    公开(公告)日：2017-10-12

    申请号：US15512370

    申请日：2015-06-17

    Applicant: Hitachi Automotive Systems, Ltd.

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

    IPC: F02M61/18 ,  F02M51/06 ,  F02M61/20

    CPC classification number: F02M61/18 ,  F02M51/061 ,  F02M51/0685 ,  F02M61/168 ,  F02M61/20 ,  F02M2200/8061

    Abstract: An object of the present invention is to provide a fuel injection valve which has a structure where failure hardly occurs in a valve member and a peripheral member thereof at the time of press-fitting of a fixed core. The present invention provides a fuel injection valve that includes: a valve member 114A; an anchor 102 which is relatively displaceable with respect to the valve member 114A; a fixed core 107 in which a through-hole 107A is formed; a gap forming member 133 which forms a gap between an engagement portion 129B on the valve member side and an engagement portion 102D on the anchor side; and a biasing spring 134 which biases the gap forming member 133 in a valve closing direction. The engagement portions 102D and 129B are provided in both the anchor 102 and the valve member 114A so as to be engaged with each other when the anchor 102 is displaced in a valve opening direction with respect to the valve member 114A, thereby regulating the displacement of the anchor 102 in the valve opening direction. An outer diameter of the gap forming member 133, an outer diameter of the biasing spring 134, and a maximum outer diameter of the valve member 114A are set to be smaller than an inner diameter of the through-hole 107A.

    Fuel Injection Valve and Fuel Injection System
    20.
    发明申请
    Fuel Injection Valve and Fuel Injection System 有权
    燃油喷射阀和燃油喷射系统

    公开(公告)号：US20130255640A1

    公开(公告)日：2013-10-03

    申请号：US13768564

    申请日：2013-02-15

    Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.

    Inventor： Yoshio OKAMOTO ,  Yoshihito YASUKAWA ,  Noriyuki MAEKAWA ,  Nobuaki KOBAYASHI ,  Takahiro SAITO

    IPC: F02M69/04

    CPC classification number: F02M69/04 ,  F02M51/0664 ,  F02M61/162 ,  F02M61/1806 ,  F02M61/1853

    Abstract: A fuel injection valve which has: swirl chambers each having an inner wall whose curvature is gradually increased from upstream to downstream along fuel flow; passages for swirling motion, the passages permitting introduction of fuel into the swirl chambers; fuel injection holes opening into the swirl chambers and including at least two narrow-angle injection holes and a wide-angle injection hole from which at least two narrow-angle sprays and a wide-angle spray are respectively ejected; and an orifice plate provided with the injection holes. The narrow-angle injection holes are spaced a given distance from the center of the orifice plate. The wide-angle injection hole is formed on a line perpendicularly intersecting a line segment that interconnects the centers of the narrow-angle injection holes.

    Abstract translation: 一种燃料喷射阀，其具有：各自具有内壁的旋转室，所述内壁的曲率沿着燃料流从上游到下游逐渐增加; 用于旋转运动的通道，允许将燃料引入涡流室中的通道; 燃料喷射孔通向涡流室，并且包括至少两个窄角喷射孔和广角喷射孔，至少两个窄角喷雾和广角喷雾分别喷射出来; 以及设置有喷射孔的孔板。 窄角度喷射孔与孔板的中心隔开给定距离。 广角喷射孔形成在与窄角度喷射孔的中心相互连接的线段垂直相交的线上。

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