Electromagnetic fuel injector
    12.
    发明公开
    Electromagnetic fuel injector 有权
    ElektromagnetischeEinspritzdüseund Montageverfahrendafür

    公开(公告)号:EP2194260A1

    公开(公告)日:2010-06-09

    申请号:EP10153898.1

    申请日:2007-01-19

    申请人: Hitachi Ltd.

    IPC分类号: F02M51/06 F02M61/10

    CPC分类号: F02M51/0685 F02M2200/306

    摘要: The invention provides an electromagnetic fuel injection valve comprising a movable member having a valve element adapted to come into contact with a valve seat at a tip end thereof; an anchor arranged for relative movement with respect to the movable member in a reciprocating direction; a stationary core and a yoke to form a magnetic circuit with the anchor; a coil to generate a magnetic flux in the magnetic circuit by being energized; a first spring for urging the movable member in a valve closing direction; and
    a second spring for urging the anchor in a valve opening direction with an urging force smaller than that of the first spring; wherein the electromagnetic fuel injection valve further comprises a metallic cylindrical-shaped vessel including a large diameter portion and a small diameter portion which is formed integrally with the large diameter portion with same material, and the coil and the yoke are arranged on an outer circumference surface of the large diameter portion and the stationary core is arranged on an inner circumference surface of the large diameter portion, a spring seat member to constitute a spring seat for the second spring is arranged on an inner circumference surface of the metallic cylindrical-shaped vessel located on a side of the small diameter portion with respect to the stationary core and the second spring and the anchor are accommodated within a space of the metallic cylindrical-shaped vessel partitioned by the spring seat member and the anchor.

    摘要翻译: 本发明提供了一种电磁燃料喷射阀,其包括具有适于在其末端与阀座接触的阀元件的可动构件; 布置成相对于可动构件在往复方向上相对运动的锚杆; 固定铁芯和磁轭,以与锚固件形成磁路; 线圈,通过通电在磁路中产生磁通; 用于在闭合方向上推动可动件的第一弹簧; 以及第二弹簧,其以比所述第一弹簧小的推动力推压所述锚杆在阀打开方向上; 其特征在于,所述电磁燃料喷射阀还包括金属圆筒形容器,所述金属圆柱形容器包括大直径部分和小直径部分,所述小直径部分与具有相同材料的所述大直径部分整体形成,并且所述线圈和所述轭架布置在外周表面 在大直径部的内周面上配置有大直径部和固定芯的弹簧座构件,构成第二弹簧的弹簧座,位于金属圆筒状容器的内周面上 在相对于固定铁芯的小直径部分的一侧上,并且第二弹簧和锚固体容纳在由弹簧座构件和锚固件分隔的金属圆柱形容器的空间内。

    Fuel injector
    15.
    发明公开
    Fuel injector 审中-公开
    Kraftstoffeinspritzventil

    公开(公告)号:EP1335129A2

    公开(公告)日:2003-08-13

    申请号:EP03000596.1

    申请日:2003-01-14

    IPC分类号: F02M61/18 F02M51/06

    摘要: The invention relates to a method that enables the inclination of the injection direction and the distribution of the penetration force of spray to be adjusted over a wide range, and an axially symmetrical spray shape to be obtained even when the injection hole is inclined, or the shape of the spray to be changed without inclining the injection hole. To provide a fuel passageway 203 as a swirling force adjustment means between the valve seat 201 and injection hole 101 of the fuel injector. This swirling force adjustment means adjusts the distribution of the swirling force of the fuel flowing into injection hole 101, and thus adjusts the spray shape obtained as a result.

    摘要翻译: 本发明涉及能够使喷射方向的倾斜和喷雾的穿透力的分布在宽范围内进行调节的方法,即使在喷射孔倾斜时也能获得轴对称的喷雾形状,或者 喷雾形状要改变而不会倾斜注射孔。 在燃料喷射器的阀座201和喷射孔101之间设置作为旋转力调节装置的燃料通路203。 这种旋转力调节装置调节流入喷射孔101的燃料的旋转力的分布,从而调节作为结果获得的喷雾形状。

    Fuel-injection valve
    16.
    发明公开
    Fuel-injection valve 有权
    Brennstoffeinspritzventil

    公开(公告)号:EP1045135A2

    公开(公告)日:2000-10-18

    申请号:EP00104454.4

    申请日:2000-03-06

    申请人: Hitachi, Ltd.

    IPC分类号: F02M51/06 F02M61/16

    摘要: A fuel-injection valve (100) includes a fuel-injection hole (2), a valve element (4) and a valve seat (3) for opening and closing the fuel-injection hole, a force-applying member (12) for applying force to the valve element in a direction of motion of the valve element, and a drive unit (5, 10, 14, 15) for applying force to the valve element (4) in the direction opposite to that of the force applied by the force-applying member; wherein a secondary oscillation system (13, 17), which interacts with a primary oscillation system (14, 12) including the valve element (4) and the force-applying member (12), is added to the primary oscillation system, and the phase angle of force applied to the primary oscillation system by the secondary oscillation system is also staggered from that of force applied to the primary oscillation system, which is other than the force applied to the primary oscillation system by the secondary oscillation system,; whereby the bouncing of the valve element during opening and closing of the valve is reduced, which in turn makes it possible to achieve very accurate fuel-injection control.

    摘要翻译: 燃料喷射阀(100)包括用于打开和关闭燃料喷射孔的燃料喷射孔(2),阀元件(4)和阀座(3),用于 在阀元件的运动方向上对阀元件施加力;以及驱动单元(5,10,14,15),用于以与由阀元件施加的力的方向相反的方向向阀元件(4)施加力 施力部件; 其中与所述主振荡系统相加的与包括所述阀元件(4)和所述施力部件(12)的主振荡系统(14,12)相互作用的次级振荡系统(13,17) 通过二次振荡系统施加到主振荡系统的相位角力也与施加到主振荡系统的力的交错角交错,该主振荡系统不同于由次振荡系统施加到主振荡系统的力; 从而在阀的打开和关闭期间阀元件的弹跳减小,这又使得可以实现非常精确的燃料喷射控制。

    Fuel pressure control apparatus for cylinder injection engine
    17.
    发明公开
    Fuel pressure control apparatus for cylinder injection engine 失效
    Steuereinrichtung des KraftstoffdruckreglersfürMotor mit Einspritzung in den Zylinder。

    公开(公告)号:EP0892168A3

    公开(公告)日:2000-09-06

    申请号:EP98113114.7

    申请日:1998-07-14

    申请人: Hitachi, Ltd.

    IPC分类号: F02D41/38 F02D41/06 F02D41/12

    摘要: A fuel pressure control apparatus for cylinder injection engine having a fuel injection valve (508) for injecting fuel into a cylinder of an engine, a pipe (542) for conducting the fuel to the fuel injection valve, a fuel pump (511) for supplying the fuel from a fuel supply system to the pipe, a fuel pressure regulator (513) for regulating the fuel pressure within the pipe by discharging the fuel from the pipe to the fuel supply system, and a control unit (515) for making feed-back control on the fuel pressure within the pipe by applying a control signal determined on the basis of an engine operation parameter to the fuel pressure regulator, wherein the fuel pressure regulator is controlled in a feed-forward manner by a predetermined control value so as to make better fuel pressure control at the time of start and when the fuel pressure transiently changes.

    摘要翻译: 一种用于气缸喷射发动机的燃料压力控制装置,具有用于将燃料喷射到发动机气缸中的燃料喷射阀(508),用于将燃料引导到燃料喷射阀的管道(542),用于供给燃料的燃料泵 从燃料供给系统到燃料供给系统的燃料,燃料压力调节器(513),用于通过将燃料从管道排出到燃料供给系统来调节管内的燃料压力;以及控制单元(515) 通过将基于发动机操作参数确定的控制信号应用于燃料压力调节器来对管道内的燃料压力进行反向控制,其中燃料压力调节器以预定的方式以预定的控制值被控制,以便 在启动时和燃油压力瞬时变化时,进行更好的燃油压力控制。