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    VALVE ASSEMBLY FOR AN INJECTION VALVE, INJECTION VALVE AND INJECTION METHOD
    1.
    发明公开
    VALVE ASSEMBLY FOR AN INJECTION VALVE, INJECTION VALVE AND INJECTION METHOD 审中-公开
    用于注射阀，注射阀和注射方法的阀组件

    公开(公告)号：EP3267028A1

    公开(公告)日：2018-01-10

    申请号：EP16178119.0

    申请日：2016-07-06

    Applicant: Continental Automotive GmbH

    Inventor： Filippi, Stefano ,  Grandi, Mauro ,  Polidori, Valerio

    IPC: F02M63/00 ,  F02M21/02 ,  F02M61/08

    CPC classification number: F02M21/0254 ,  F02M21/0257 ,  F02M21/0269 ,  F02M51/0685 ,  F02M61/06 ,  F02M61/08 ,  F02M2200/306 ,  F02M2200/9015 ,  Y02T10/32

    Abstract: The present invention refers to a valve assembly (2) for an injection valve (1), in particular for an injection valve (1) for injecting CNG, the valve assembly (2) comprising: a housing (3) providing a fluid inlet (4) and a fluid outlet (5) and a fluid path (6) extending between the fluid inlet (4) and the fluid outlet (5), a needle (7) within the housing (3) wherein the needle (7) is movable along a longitudinal axis (L) of the valve assembly (2), a first valve seat (10) and a first valve closing part (9), wherein the first closing part (9) is movable by the needle (7) between a closing position where the first valve closing part (9) is in contact to the first valve seat (10) for closing the fluid path (6) in between and an opening position where the first valve closing part (9) is spaced apart from the first valve seat (10) for opening the fluid path (6) in between. In order to improve such valve assembly (2) the invention suggests that the valve assembly (2) comprises a second valve seat (13) and a second valve closing part (12), wherein the second valve closing part is movable by the needle (7) between a closing position where the second valve closing part (12) is in contact to the second valve seat (13) for closing the fluid path (6) in between and an opening position where the second valve closing part (12) is spaced apart from the second valve seat (13) for opening the fluid path (6) in between. The Invention also refers to an injection valve (1) comprising a valve assembly (2) according to the invention.

    Abstract translation: 本发明涉及用于喷射阀（1）的阀组件（2），特别是用于喷射CNG的喷射阀（1），该阀组件（2）包括：壳体（3），其提供流体入口 （7）和在所述流体入口（4）和所述流体出口（5）之间延伸的流体出口（5）和流体路径（6），所述壳体（3）内的针（7） （9）能够通过所述针（7）在所述阀组件（2）的纵向轴线（L）上移动;第一阀座（10）和第一阀关闭部件（9），其中所述第一关闭部件 第一阀闭合部（9）与第一阀座（10）接触以关闭其间的流体路径（6）的闭合位置和第一阀闭合部（9）与第一阀闭合部 第一阀座（10）用于打开其间的流体通路（6）。 为了改进这种阀组件（2），本发明提出，阀组件（2）包括第二阀座（13）和第二阀关闭部件（12），其中第二阀关闭部件可通过针 （12）与第二阀座（13）接触以关闭其间的流体通路（6）的关闭位置与第二阀关闭部分（12）为开启位置之间的关闭位置 与第二阀座（13）间隔开以在其间打开流体路径（6）。 本发明还涉及包括根据本发明的阀组件（2）的喷射阀（1）。

    A fuel valve for large stroke diesel engines
    7.
    发明公开
    A fuel valve for large stroke diesel engines 有权
    EinspritzdüsefürDieselmotoren mitgroßemHubraum

    公开(公告)号：EP2378109A1

    公开(公告)日：2011-10-19

    申请号：EP11001060.0

    申请日：2011-02-10

    Applicant: MAN DIESEL & TURBO, FILIAL AF MAN DIESEL & TURBO SE, TYSKLAND

    Inventor： Flarup, Johannes

    IPC: F02M61/18 ,  F02M61/04 ,  F02M61/06

    CPC classification number: F02M61/182 ,  F02M61/042 ,  F02M61/06

    Abstract: A fuel valve (1) for a large two-stroke diesel engine with a nozzle (30) with conventionally arranged nozzle bores (35) that have a center line (36) substantially coinciding with the center line (34) of the axial bore (33) of the nozzle (30) and a hollow cut-off shaft (40) received in the axial bore (33) in the nozzle (30). The cut-off shaft (40) moves in unison with a valve needle (20) and closes the nozzle holes (35) when the valve needle (20) rests on its seat (22) so that the sac volume is practically zero.

    Abstract translation: 一种用于具有常规布置的喷嘴孔（35）的喷嘴（30）的大型二冲程柴油发动机的燃料阀（1），其具有基本上与轴向孔的中心线（34）重合的中心线（36） 喷嘴（30）的轴向孔（33）和容纳在喷嘴（30）中的轴向孔（33）中的中空截止轴（40）。 当阀针（20）位于其座（22）上时，切断轴（40）与阀针（20）一致地移动并关闭喷嘴孔（35），使囊体积几乎为零。

    A fuel injector for internal combustion engines
    8.
    发明公开
    A fuel injector for internal combustion engines 有权
    KraftstoffeinspritzventilfürVerbrennungsmotoren

    公开(公告)号：EP2239451A1

    公开(公告)日：2010-10-13

    申请号：EP09156590.3

    申请日：2009-03-30

    Applicant: Wärtsilä Switzerland Ltd.

    Inventor： Miotti, Pierpaolo ,  Destro, Marco ,  Coppo, Marco ,  Formia, Luca ,  Garlasche', Marco ,  Lombardo, Massimo

    IPC: F02M61/04 ,  F02M61/06 ,  F02M61/18

    CPC classification number: F02M61/042 ,  F02M61/06 ,  F02M61/182 ,  F02M61/1893

    Abstract: A fuel injector for internal combustion engines, comprising:
    - a housing (16),
    - a valve guide (38) fixed at a lower end of said housing (16), the valve guide (38) having a longitudinal guide bore (44) and a chamber (46) provided with a valve seat (50), said chamber (46) being connected to a fuel supply duct (22,48);
    - an atomizer (56) fixed at a lower end of said valve guide (38), the atomizer (56) having a longitudinal bore (80) in flow connection with said chamber (46), the atomizer having a plurality of nozzle bores (82) having inlet openings (84) facing into said longitudinal bore (80);
    - a spindle (88) having a valve portion (92) cooperating with said valve seat (50), and a cut-off element (94) extending into said longitudinal bore (80) of the atomizer (56), wherein an upper cut-off section (102) and a lower cut-off section (106) axially spaced apart from each other are defined between the outer surface of the cut-off element (94) and the inner surface of the longitudinal bore (80), cut-off sections (102,106) being both closed in the closed position of the spindle (88), the cut-off element (94) having a central duct (112) in flow connection with the longitudinal bore (80) of the atomizer (56) both above the upper cut-off section (102) and below the lower cut-off section (106).

    Abstract translation: 一种用于内燃机的燃料喷射器，包括： - 壳体（16）， - 固定在所述壳体（16）的下端的阀导向件（38），所述阀导向件（38）具有纵向导向孔（44） 和设置有阀座（50）的腔室（46），所述腔室（46）连接到燃料供应管道（22,48）; - 固定在所述阀引导件（38）的下端的雾化器（56），所述雾化器（56）具有与所述腔室（46）流动连接的纵向孔（80），所述雾化器具有多个喷嘴孔 82）具有面向所述纵向孔（80）的入口开口（84）。 - 具有与所述阀座（50）配合的阀部分（92）的主轴（88）和延伸到所述雾化器（56）的所述纵向孔（80）中的切断元件（94），其中上切口 在切断元件（94）的外表面和纵向孔（80）的内表面之间限定切口部分（102）和彼此轴向间隔开的下切割部分（106） 截止部分（102,106）在主轴（88）的关闭位置都被关闭，所述截止元件（94）具有与雾化器（56）的纵向孔（80）流动连接的中心管道（112） ）在上截止部分（102）上方和下截止部分（106）下方。

    Fuel injector
    10.
    发明公开
    Fuel injector 审中-公开
    喷油器

    公开(公告)号：EP1854995A1

    公开(公告)日：2007-11-14

    申请号：EP06252441.8

    申请日：2006-05-09

    Applicant: Delphi Technologies, Inc.

    Inventor： Hoffman, Guy

    IPC: F02M61/08 ,  F02M61/06 ,  F02M51/06 ,  F02M61/20

    CPC classification number: F02M61/08 ,  F02M51/061 ,  F02M61/06 ,  F02M61/20 ,  F02M2200/306

    Abstract: A fuel injector comprising an injector body 1 having a tip portion 2 defining a spray aperture 3, a pintle 5 extending within the tip portion 2, the pintle 2 having an external head 6 engageable with the spray aperture 3 to seal the spray aperture 3; a return spring 7 biasing the pintle 2 to a retracted position; solenoid actuating means 11,12 for selectively moving the pintle 2 into an extended position;
    control means being provided for varying the peak/hold current applied to the solenoid to vary the pintle stroke as a function of peak/hold current applied to the solenoid.

    Abstract translation: 一种燃料喷射器，包括喷射器本体1，喷射器本体1具有限定喷射孔3的末端部分2，在末端部分2内延伸的枢轴5，枢轴2具有可与喷射孔3接合以密封喷射孔3的外部头部6; 将枢轴2偏置到缩回位置的复位弹簧7; 螺线管致动装置11,12，用于选择性地将枢轴2移动到伸出位置; 提供控制装置，用于根据施加到螺线管的峰值/保持电流来改变施加到螺线管的峰值/保持电流，以改变枢轴行程。

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