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    Electromagnetic fuel injector
    2.
    发明申请
    Electromagnetic fuel injector 审中-公开
    电磁燃油喷射器

    公开(公告)号：US20070007477A1

    公开(公告)日：2007-01-11

    申请号：US11519946

    申请日：2006-09-13

    申请人： Yasunaga Hamada ,  Yasuo Namaizawa

    发明人： Yasunaga Hamada ,  Yasuo Namaizawa

    IPC分类号： F16K31/02

    CPC分类号： F02M51/0675 ,  F02D41/20 ,  F02D2041/2013 ,  F02D2041/2079 ,  F02M51/005 ,  F02M51/0621 ,  F02M51/0671 ,  F02M61/165 ,  F02M2200/505 ,  H01F5/02 ,  H01F2007/083

    摘要： In an electromagnetic fuel injector of an internal combustion engine, an electromagnetic coil for valve driving is to be wound on a bobbin, and the bobbin is constituted by a synthetic resin containing a filler having good heat conductivity. For example, the bobbin with the coil to be wound thereon is constituted by PPS containing iron oxide and/or alumina as a filler. Two types of electromagnetic coils different in characteristics are provided in the fuel injector. These coils are wound separately on one bobbin in an axial direction. Among them, one coil (hereinafter referred to as “first coil”) has a winding region near a movable unit with a valve element being the object of magnetic suction, and other-coil (hereinafter referred to as “second coil”) has a winding region away from the movable unit. The bobbin has a step difference of the outer diameter so that the bobbin outer diameter in the region with the second coil to be wound thereon is smaller than the bobbin outer diameter in the region with the first coil to be wound thereon, and the bobbin inner diameter has a step difference in that the bobbin inner diameter in the region with the first coil to be wound thereon is made large partially so as to secure an annular space to interpose a seal ring therein.

    摘要翻译： 在内燃机的电磁燃料喷射器中，将用于阀驱动的电磁线圈缠绕在线轴上，线轴由含有导热性良好的填料的合成树脂构成。 例如，其上缠绕有线圈的线轴由含有氧化铁和/或氧化铝作为填料的PPS构成。 在燃料喷射器中设置两种不同特性的电磁线圈。 这些线圈在一个线轴上沿轴向分开缠绕。 其中，一个线圈（以下称为“第一线圈”）具有在作为磁吸引对象的阀元件的可动单元附近的绕组区域，而其他线圈（以下称为“第二线圈”）具有 绕组区域远离可移动单元。 线轴具有外径的台阶差，使得在其上缠绕有第二线圈的区域中的线轴外径小于在其上缠绕有第一线圈的区域中的线轴外径，并且线轴内径 直径具有阶梯差，其中具有要卷绕在其上的第一线圈的区域中的线轴内径被大部分地设置，以便确保环形空间以将密封环插入其中。

    Electromagnetic type fuel injector valve
    3.
    发明授权
    Electromagnetic type fuel injector valve 失效
    电磁式燃油喷射阀

    公开(公告)号：US06834844B1

    公开(公告)日：2004-12-28

    申请号：US09763971

    申请日：2001-09-13

    申请人： Yasunaga Hamada ,  Yasuo Namaizawa

    发明人： Yasunaga Hamada ,  Yasuo Namaizawa

    IPC分类号： F02M5106

    CPC分类号： F02M51/0682 ,  F02D41/20 ,  F02D2041/2017 ,  F02D2041/2079 ,  F02M51/005 ,  F02M51/0617 ,  F02M51/0621 ,  F02M51/0671 ,  F02M51/0678 ,  F02M55/004 ,  F02M61/165 ,  F02M61/168 ,  F02M2200/505 ,  F02M2200/9015

    摘要： An electromagnetic fuel injector of an internal combustion engine having a plurality of electromagnetic coils for valve driving wound separately on a bobbin in an axial direction. The bobbin has a step difference of the outer diameter so that the bobbin outer diameter in the region with the second coil to be wound thereon is smaller then the bobbin outer diameter in the region with the first coil to be wound thereon, and the bobbin inner diameter has a step difference in that the bobbin inner diameter in the region with the first coil to be wound thereon is made large partially so as to secure an annular space to interpose a seal ring therein.

    摘要翻译： 具有多个用于阀驱动的电磁线圈的内燃机的电磁燃料喷射器在轴向上分别缠绕在筒管上。 线轴具有外径的台阶差，使得在其上缠绕有第二线圈的区域中的线轴外径小于在其上缠绕有第一线圈的区域中的线轴外径，并且线轴内径 直径具有阶梯差，其中具有要卷绕在其上的第一线圈的区域中的线轴内径被大部分地设置，以便确保环形空间以将密封环插入其中。

    Fuel injector
    7.
    发明授权
    Fuel injector 有权
    喷油器

    公开(公告)号：US08672239B2

    公开(公告)日：2014-03-18

    申请号：US12817813

    申请日：2010-06-17

    申请人： Kiyotaka Ogura ,  Yasuo Namaizawa

    发明人： Kiyotaka Ogura ,  Yasuo Namaizawa

    IPC分类号： F02M61/00

    CPC分类号： F02M51/0685 ,  F02M61/1846

    摘要： A fuel injector is disclosed that has plural nozzle holes with the same cross-sectional shape and can individually set the flow rate of each nozzle hole. The fuel injector includes the plural nozzle holes, a seat section positioned upstream of the nozzle holes, a valve element that closes a valve when brought into contact with the seat section and opens the valve when separated from the seat section, and a circular cone tapered from an upstream end to a downstream end and provided with the seat section and an inlet opening of the nozzle holes. The plural nozzle holes have an identical shape and a shape of a cross-section of each of the nozzle holes is substantially out-of-round, the cross-section being perpendicular to a central axis of each of the nozzle holes. The cross-section of each of the nozzle holes is rotated around the central axis of each of the nozzle holes. A rotation angle of the cross-section is set in such a manner that a relationship between a conical surface of the circular cone and the rotation angle is different among at least two of the nozzle holes.

    摘要翻译： 公开了具有相同横截面形状的多个喷嘴孔并且可以分别设定每个喷嘴孔的流量的燃料喷射器。 燃料喷射器包括多个喷嘴孔，位于喷嘴孔上游的阀座部分，当阀座与阀座部分接触时关闭阀门并在与阀座部分分离时打开阀门的阀元件以及圆锥形锥形阀 从上游端到下游端，并设置有座部和喷嘴孔的入口。 多个喷嘴孔具有相同的形状，并且每个喷嘴孔的横截面的形状基本上不圆形，横截面垂直于每个喷嘴孔的中心轴线。 每个喷嘴孔的横截面围绕每个喷嘴孔的中心轴旋转。 横截面的旋转角度被设定为在至少两个喷嘴孔中圆锥形锥形表面与旋转角度之间的关系不同。

    Electromagnetic Fuel Injection Valve
    8.
    发明申请
    Electromagnetic Fuel Injection Valve 有权
    电磁燃油喷射阀

    公开(公告)号：US20130087639A1

    公开(公告)日：2013-04-11

    申请号：US13638382

    申请日：2011-04-01

    申请人： Hirotaka Nakai ,  Motoyuki Abe ,  Toru Ishikawa ,  Yasuo Namaizawa ,  Nobuaki Kobayashi ,  Kiyoshi Yoshii ,  Hitoshi Furudate

    发明人： Hirotaka Nakai ,  Motoyuki Abe ,  Toru Ishikawa ,  Yasuo Namaizawa ,  Nobuaki Kobayashi ,  Kiyoshi Yoshii ,  Hitoshi Furudate

    IPC分类号： F02M51/06

    CPC分类号： F02M51/061 ,  F02M51/0671 ,  F02M51/0685 ,  F02M61/20 ,  F02M2200/306

    摘要： An electromagnetic fuel injection valve includes: a valve element which closes a fuel passage by coming into contact with a valve seat and opens the fuel passage by going away from the valve seat; an electromagnet which includes a coil and a magnetic core formed as a drive portion for driving the valve element; a movable element which is held by the valve element in a state where the movable element is displaceable in the direction of a drive force of the valve element relative to the valve element; a first biasing portion for biasing the valve element in the direction opposite to the direction of a drive force generated by the drive portion; a second biasing portion for biasing the movable element in the direction of the drive force with a biasing force smaller than the biasing force generated by the first biasing portion; and a restricting portion for restricting the displacement of the movable element in the direction of the drive force relative to the valve element.

    摘要翻译： 电磁燃料喷射阀包括：阀元件，其通过与阀座接触并关闭燃料通道并通过远离阀座打开燃料通道; 电磁体，其包括形成为驱动阀元件的驱动部的线圈和磁芯; 可移动元件，其在所述可移动元件可相对于所述阀元件的驱动力相对于所述阀元件的方向移动的状态下被所述阀元件保持; 第一偏压部分，用于沿与驱动部分产生的驱动力的方向相反的方向偏压阀元件; 第二偏置部分，用于利用小于由第一偏压部分产生的偏压力的偏压力来使驱动力方向偏压可动元件; 以及用于限制可动元件相对于阀元件的驱动力方向的位移的限制部。

    Fuel injector
    9.
    发明授权
    Fuel injector 失效
    喷油器

    公开(公告)号：US06845925B2

    公开(公告)日：2005-01-25

    申请号：US09989068

    申请日：2001-11-21

    申请人： Motoyuki Abe ,  Yoshio Okamoto ,  Yuzo Kadomukai ,  Makoto Yamakado ,  Ayumu Miyajima ,  Toru Ishikawa ,  Yasuo Namaizawa

    发明人： Motoyuki Abe ,  Yoshio Okamoto ,  Yuzo Kadomukai ,  Makoto Yamakado ,  Ayumu Miyajima ,  Toru Ishikawa ,  Yasuo Namaizawa

    IPC分类号： F02M51/06 ,  F02M61/16 ,  F02M61/18 ,  F02M61/00

    CPC分类号： F02M61/1806 ,  F02M51/061 ,  F02M61/162

    摘要： To produce a fuel spray that is asymmetrical in the flow rate distribution of a sprayed fuel in order to improve the homogeneity of air-fuel mixture density during the air intake stroke injection for homogeneous combustion in an in-cylinder injection engine, the exit portion of the fuel injection hole is provided with the wall surfaces 204a, 204b, 205a, and 205b that are parallel to the central axis of the injection hole. Also, the periphery of the injection hole is provided with a plurality of areas in which the flow of the fuel in the radial direction of the injection hole will be restrained, and an plurality of areas in which the flow of the fuel in the radial direction of the injection hole will not be restrained, and a different size is assigned to each non-restraint area.

    摘要翻译： 为了在喷射燃料的流量分布中产生不对称的燃料喷雾，以便在缸内喷射发动机的均匀燃烧的进气冲程喷射期间提高空气 - 燃料混合物密度的均匀性， 燃料喷射孔设置有与喷射孔的中心轴线平行的壁面204a，204b，205a，205b。 此外，喷射孔的周边设置有多个区域，其中燃料在喷射孔的径向方向上的流动将被抑制，并且燃料在径向上的流动的多个区域 不会限制注入孔，并且对每个非约束区域分配不同的尺寸。

    Fuel Injection Device
    10.
    发明申请
    Fuel Injection Device 审中-公开
    燃油喷射装置

    公开(公告)号：US20120227709A1

    公开(公告)日：2012-09-13

    申请号：US13415960

    申请日：2012-03-09

    申请人： Ryo KUSAKABE ,  Motoyuki Abe ,  Tohru Ishikawa ,  Noriyuki Maekawa ,  Masahiro Soma ,  Takao Miyake ,  Yasuo Namaizawa

    发明人： Ryo KUSAKABE ,  Motoyuki Abe ,  Tohru Ishikawa ,  Noriyuki Maekawa ,  Masahiro Soma ,  Takao Miyake ,  Yasuo Namaizawa

    IPC分类号： F02M51/06

    摘要： In a fuel injection device, a driving unit structure has a magnetic aperture, in which an inner diameter is gradually enlarged toward the mover side, provided in an inner peripheral surface of the magnetic core. It is possible to reduce magnetic delay time upon valve opening from the supply of the electric current to the coil to the rise of magnetic flux and magnetic delay time upon valve closing from the stoppage of the electric current to the coil to reduction of magnetic flux, by providing a magnetic aperture in the inner peripheral surface of the magnetic core. Thus it is possible to improve the dynamic responsiveness upon valve opening and valve closing.

    摘要翻译： 在燃料喷射装置中，驱动单元结构具有设置在磁芯的内周面内的朝向移动侧逐渐增大的磁性孔。 从电流向线圈的电流到磁通的上升以及从关闭电流到线圈的电磁阀关闭时的磁延迟时间可以减少磁性延迟时间，以减小磁通量， 通过在磁芯的内周面上设置磁性孔。 因此，可以提高开阀和关阀时的动态响应性。