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    Fuel injector and in-cylinder direct-injection gasoline engine
    61.
    发明授权
    Fuel injector and in-cylinder direct-injection gasoline engine 失效
    燃油喷射器和缸内直喷汽油机

    公开(公告)号：US07334563B2

    公开(公告)日：2008-02-26

    申请号：US11342870

    申请日：2006-01-31

    申请人： Masanori Mifuji ,  Tohru Ishikawa ,  Atsushi Sekine ,  Yoshio Okamoto

    发明人： Masanori Mifuji ,  Tohru Ishikawa ,  Atsushi Sekine ,  Yoshio Okamoto

    IPC分类号： F02B3/02 ,  F02M61/18

    CPC分类号： F02M61/162 ,  F02M61/1853

    摘要： A fuel injector has a plunger for opening/closing a fuel path to control the amount of fuel to be injected; a seat portion for the plunger; and a plurality of nozzle holes for injecting fuel passed through between the plunger and the seat portion, A nozzle plate is provided with the seat portion, and a taper-fuel inlet hole has a diameter that gradually reduces from the seat toward its outlet, An orifice plate is arranged downstream from the taper-fuel inlet hole, and is provided with a concave portion opposite to the nozzle plate, with a plurality of nozzle holes being formed concentrically at a bottom of the concave portion. Each nozzle hole has an inclined angle in the direction of the plate thickness within the concave area.

    摘要翻译： 燃料喷射器具有用于打开/关闭燃料路径的柱塞，以控制要喷射的燃料的量; 柱塞的座部; 以及多个用于喷射通过柱塞和座部之间的燃料的喷嘴孔。喷嘴板设置有座部，锥形燃料入口孔的直径从座椅朝向其出口逐渐减小， 孔板布置在锥形燃料入口孔的下游，并且设置有与喷嘴板相对的凹部，多个喷嘴孔同心地形成在凹部的底部。 每个喷嘴孔在凹陷区域内的板厚方向上具有倾斜角。

    Fuel injection valve
    62.
    发明申请
    Fuel injection valve 审中-公开
    燃油喷射阀

    公开(公告)号：US20070007363A1

    公开(公告)日：2007-01-11

    申请号：US11477776

    申请日：2006-06-30

    申请人： Masanori Mifuji ,  Noriyuki Maekawa ,  Tohru Ishikawa

    发明人： Masanori Mifuji ,  Noriyuki Maekawa ,  Tohru Ishikawa

    IPC分类号： B05B1/08

    CPC分类号： F02M61/167 ,  F02B2075/125 ,  F02M51/0607 ,  F02M2200/21 ,  Y02T10/123

    摘要： A valve seat is provided upstream from said fuel nozzle orifice. A first valve rod opens and closes the fuel nozzle orifice with axial movements relative to the valve seat. A spring exerts the first valve rod away from the valve seat. A stopper restricts a lift amount of the first valve rod lifted with a force of the spring. A solenoid produces a magnetic field. A magnetostrictive element extends when current passes through the solenoid and shrinks when no current passes through said solenoid, and having a hysteresis in an axial deformation amount on extending and in an axial deformation amount on shrinking. A second valve rod presses the first valve rod onto the valve seat against the force of the spring when the solenoid is not energized, and for allows the first valve rod to move away from the valve seat with exertions of an extension of the magnetostrictive element and the force of said spring when said solenoid is energized. Wherein the extension amount of the magnetostrictive element when the first valve rod is fully open is set greater than a full stroke of the first valve rod from the valve seat to the stopper.

    摘要翻译： 在所述燃料喷嘴孔的上游设置有阀座。 第一阀杆相对于阀座的轴向移动来打开和关闭燃料喷嘴孔。 弹簧使第一阀杆远离阀座。 止动器限制用弹簧的力提升的第一阀杆的提升量。 螺线管产生磁场。 当电流通过螺线管时，磁致伸缩元件延伸，当没有电流通过所述螺线管时收缩，并且在延伸时具有轴向变形量的滞后和在收缩时的轴向变形量。 当螺线管未通电时，第二阀杆克服弹簧的力将第一阀杆压到阀座上，并且为了允许第一阀杆移动离开阀座，伴随着磁致伸缩元件的延伸， 当所述螺线管通电时所述弹簧的力。 其中当第一阀杆完全打开时磁致伸缩元件的延伸量被设定为大于第一阀杆从阀座到止动件的全行程。