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53 条记录 (耗时 0.017 秒)

    Electromagnetic fuel injection valve device
    1.
    发明公开
    Electromagnetic fuel injection valve device 审中-公开
    电磁式燃料喷射阀装置

    公开(公告)号：EP1990526A3

    公开(公告)日：2012-11-07

    申请号：EP08008571.5

    申请日：2008-05-07

    申请人： Hitachi, Ltd.

    发明人： Abe, Motoyuki ,  Hayatani, Masahiko ,  Ishikawa, Tohru ,  Kowatari, Takehiko ,  Maekawa, Noriyuki

    IPC分类号： F02D41/20

    CPC分类号： F02D41/20 ,  F02D41/402 ,  F02D2041/2037 ,  F02D2041/2044 ,  F02M51/0685

    摘要： An electromagnetic fuel injection valve device for an internal combustion engine is configured to carry out an energization to an electromagnetic coil of an injection valve actuator for a valve opening motion and additionally carry out a mid-term energization at a time interval between both an energization for valve opening of a previous fuel injection and an energization for valve opening of a subsequent fuel injection. A current of the mid-term energization is smaller than a current of the energization for valve opening motion and has the same direction as a direction of the current of the energization for valve opening motion.

    Electromagnetic fuel injection valve
    2.
    发明公开
    Electromagnetic fuel injection valve 有权
    电磁燃油喷射阀

    公开(公告)号：EP1878908A3

    公开(公告)日：2010-11-03

    申请号：EP07013783.1

    申请日：2007-07-13

    申请人： Hitachi, Ltd.

    发明人： Abe, Motoyuki ,  Hayatani, Masahiko ,  Ishikawa, Tohru

    IPC分类号： F02M51/06

    CPC分类号： F02M51/0614 ,  F02M51/0671 ,  H01F7/081 ,  H01F7/1607 ,  H01F2007/086

    摘要： The invention relates to an injector used for an internal combustion engine, in which a favorable magnetic attraction force is obtained to reduce a controllable minimum injection amount of a fuel injection amount. In a fuel injection valve in which a fixed core (107) and a moving element (114) is contained inside a pipe-shaped member (101), and a coil (105) and a yoke (103) are provided on an outer side thereof, a space for placing the coil (105) is placed so that an inner circumference length in a vertical section of the space becomes smaller than an outside diameter of the yoke (103), or a height of the space in an axial direction of the fixed core (107) becomes smaller than a diameter of the fixed core (107).

    摘要翻译： 用于内燃机的喷射器技术领域本发明涉及一种用于内燃机的喷射器，其中获得有利的磁吸引力以减小燃料喷射量的可控最小喷射量。 在管状部件（101）的内部容纳固定铁心（107）和移动体（114），在外侧设置线圈（105）和磁轭（103）的燃料喷射阀 放置线圈105的空间被放置为使得空间的垂直截面中的内圆周长度小于磁轭103的外径，或者空间的轴向高度 固定芯107变得小于固定芯107的直径。

    Fuel injector and internal combustion engine
    3.
    发明公开
    Fuel injector and internal combustion engine 审中-公开
    Kraftstoffeinspritzventil und Verbrennungsmotor

    公开(公告)号：EP2083166A2

    公开(公告)日：2009-07-29

    申请号：EP09001195.8

    申请日：2009-01-28

    申请人： Hitachi Ltd.

    发明人： Abe, Motoyuki ,  Komeda, Akiko ,  Ishikawa, Tohru ,  Kowatari, Takehiko ,  Maekawa, Noriyuki

    IPC分类号： F02M57/02 ,  F02M69/04 ,  F02M61/16

    CPC分类号： F02M69/046 ,  F02M57/026 ,  F02M61/10 ,  F02M61/16

    摘要： The present invention provides a simplified fuel injector which uses fuel as hydraulic oil to intensify the injection pressure.
    A pressure intensifier of the fuel injector is provided with a pressurization piston 106, a first fuel chamber 107 that communicates with a fuel inlet passage 101 (or a fuel supply passage), and a fuel pressurization chamber 111. The pressurization chamber 111 is provided inside a valve body 110. The pressurization piston 106 is formed displaceably relative to the valve body 110 and is provided with a first pressure receiving surface 106a and a pressurization piston portion 106b. The first pressure receiving surface 106a is one end surface of the pressurization piston 106 which faces one of the piston displacement directions 106d, that is, faces the first fuel chamber 107. The pressurization piston portion 106b is provided on the other end surface of the piston 106 which faces the other direction of the piston displacement directions 106d, that is, faces the pressurization chamber 111. The area of the pressurization piston portion 106b which faces the pressurization chamber 111 is smaller than that of the first pressure receiving surface 106a, and the pressurization piston portion 106b serves to change the volume of the pressurization chamber 111.

    摘要翻译： 本发明提供了一种简化的燃料喷射器，其使用燃料作为液压油来增强喷射压力。 燃料喷射器的增压器设置有加压活塞106，与燃料入口通道101（或燃料供给通道）连通的第一燃料室107和燃料加压室111.加压室111设置在内部 阀体110.加压活塞106相对于阀体110可移动地形成，并且设置有第一受压面106a和加压活塞部106b。 第一压力接收表面106a是加压活塞106的面向一个活塞位移方向106d的一个端面，即面向第一燃料室107.加压活塞部分106b设置在活塞的另一端面上 106，其面向活塞位移方向106d的另一方向，即面向加压室111.加压活塞部106b面对加压室111的面积小于第一受压面106a的面积， 加压活塞部分106b用于改变加压室111的体积。

    Injector driving control apparatus
    9.
    发明公开
    Injector driving control apparatus 审中-公开
    一种用于电子燃料喷射喷嘴的驱动电路

    公开(公告)号：EP1270913A2

    公开(公告)日：2003-01-02

    申请号：EP02013532.3

    申请日：2002-06-18

    申请人： Hitachi, Ltd.

    发明人： Yamakado, Makoto ,  Maekawa, Noriyuki ,  Ogura, Kiyotaka ,  Hino, Kazutaka ,  Ishikawa, Tohru

    IPC分类号： F02D41/20

    CPC分类号： F02D41/20 ,  F02D2041/2003 ,  F02D2041/2031 ,  F02D2041/2058

    摘要： The invention relates to an injector driving control apparatus (0) that operates with minimum power consumption while ensuring linearity (proportionality between the current supply duration and fuel injection volume of the injector) in a wide fuel pressure range. Providing a coil current feedback circuit and controlling the current feedback duration according to fuel pressure after applying the current at a boost voltage. The present invention enables optimal control of the injector (8) and hence, the improvement of its fuel injection volume characteristics (linearity) and the reduction of the heat generated in the injector driving control circuits (7).

    Fuel-injection valve
    10.
    发明公开
    Fuel-injection valve 有权
    燃油喷射阀

    公开(公告)号：EP1045135A3

    公开(公告)日：2002-07-10

    申请号：EP00104454.4

    申请日：2000-03-06

    申请人： Hitachi, Ltd.

    发明人： Tsuchiya, Masahiro ,  Hirata, Tousuke ,  Okamoto, Yoshio ,  Ishikawa, Tohru ,  Maekawa, Noriyuki ,  Tanabe, Yoshiyuki ,  Sekine, Atsushi ,  Kadomukai, Yuzo ,  Yamakado, Makoto ,  Abe, Motoyuki

    IPC分类号： F02M51/06 ,  F02M61/16

    CPC分类号： F02M51/0682 ,  F02M51/061 ,  F02M61/205 ,  F02M2200/306 ,  Y10S239/90

    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： 一种燃料喷射阀（100），具有燃料喷射孔（2），阀体（4）和开闭燃料喷射孔的阀座（3），施力部件（12） 沿着所述阀元件的运动方向对所述阀元件施加力;以及驱动单元（5,10,14,15），用于沿与所述阀元件施加的力的方向相反的方向对所述阀元件（4）施加力的驱动单元 施力构件; 其中与主振动系统（14,12）相互作用的次振荡系统（13,17）被添加到主振荡系统，所述主振荡系统与包括阀元件（4）和施力构件（12）的主振荡系统 通过次级振荡系统施加到主振荡系统的力的相位角与施加到主振荡系统的力的相位角也是交错的，除了通过次级振荡系统施加到主振荡系统的力之外; 由此在阀的打开和关闭期间阀元件的弹跳减小，这继而可以实现非常精确的燃料喷射控制。