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125 条记录 (耗时 0.017 秒)

    VALVE ASSEMBLY AND FLUID INJECTION VALVE
    2.
    发明公开
    VALVE ASSEMBLY AND FLUID INJECTION VALVE 审中-公开

    公开(公告)号：EP3339627A1

    公开(公告)日：2018-06-27

    申请号：EP17157333.0

    申请日：2017-02-22

    申请人： Continental Automotive GmbH

    发明人： Grandi, Mauro ,  Filippi, Stefano ,  Schürz, Willibald, Dr.

    IPC分类号： F02M51/06 ,  F02M61/20

    CPC分类号： F02M51/0671 ,  F02M51/0675 ,  F02M51/0685 ,  F02M61/205 ,  F02M2200/304

    摘要： A valve assembly (3) for a fluid injection valve (1) is disclosed. It comprises a valve needle (11) and an armature (23). The armature (23) comprises a recess (33) at an upper side (27), the recess (33) having a first circumferential surface (231) and a first bottom surface (233). A second circumferential surface (341) of the armature (23) defines a central bore (34) which extends from the first bottom surface (233) to a lower side (41) of the armature (23), opposite of the upper side (27). The valve needle (11) comprises a retaining element (24) fixed to a shaft (13) of the valve needle (11), the retaining element (24) having a first external circumferential surface (241) and a second bottom surface (243) and the shaft having a second external circumferential surface (131). At least a portion of the retaining element (24) is arranged in the recess (33) so that the first bottom surface (233) opposes the second bottom surface (243) and the shaft (13) extends through the central bore (34). The recess (33) and the retaining element (24) are dimensioned such that a radial gap (G1) is established between the first circumferential surface (231) and the first external circumferential surface (241) for establishing a fluid leakage path from the upper side (27) to the first bottom surface (233). The shaft (13) and the central bore (34) are dimensioned such that a radial gap (G2) is established between the second circumferential surface (231) and the second external circumferential surface (241) for establishing a fluid leakage path from the lower side (41) to the first bottom surface (233).

    Method of controlling an electromagnetic fuel injector
    7.
    发明公开
    Method of controlling an electromagnetic fuel injector 审中-公开
    Verfahren zur Steuerung eines elektromagnetischen Kraftstoffinjektors

    公开(公告)号：EP2375037A1

    公开(公告)日：2011-10-12

    申请号：EP11161584.5

    申请日：2011-04-07

    申请人： Magneti Marelli S.p.A.

    发明人： Serra, Gabriele ,  Parotto, Marco ,  Armeni, Saverio ,  Santamato, Luigi ,  Leoni, Andrea

    IPC分类号： F02D41/20 ,  F02M61/10

    CPC分类号： F02D41/20 ,  F02D41/247 ,  F02M51/0675

    摘要： Method of controlling an electromagnetic fuel injector (4); the method contemplates the steps of: determining a target quantity (Q INJ-OBJ ) of fuel to inject; determining a hydraulic supply time (T HYD ) as a function of the target quantity (Q INJ-OBJ ) of fuel to inject and using a first injection law (IL1) which provides a hydraulic supply time (T HYD ) as a function of the target quantity (Q INJ-OBJ ) of fuel; determining an estimated closing time (T C_EXT ) as a function of the hydraulic supply time (T HYD ) and using a second injection law (IL2) which provides the estimated closing time (T C_EXT ) as a function of the hydraulic supply time (T HYD ); determining an injection time (T INJ ) as a function of the hydraulic supply time (T HYD ) and of the estimated closing time (T C_EXT ); and piloting the injector (4) using the injection time (T INJ ).

    摘要翻译： 控制电磁燃料喷射器（4）的方法; 该方法考虑以下步骤：确定要注入的燃料的目标量（Q INJ-OBJ）; 确定作为要注入的燃料的目标量（Q INJ-OBJ）的函数的液压供应时间（T HYD），并且使用提供液压供应时间（T HYD）的第一喷射定律（IL1）作为 燃料目标量（Q INJ-OBJ） 确定作为液压供应时间（T HYD）的函数的估计关闭时间（T C_EXT），并且使用提供作为液压供应时间（T C_EXT）的函数的估计关闭时间（T C_EXT）的第二喷射定律（IL2） HYD）; 确定作为液压供应时间（T HYD）和估计关闭时间（T C_EXT）的函数的喷射时间（T INJ）; 并使用喷射时间（T INJ）引导喷射器（4）。

    Valve assembly for an injection valve and injection valve
    9.
    发明公开
    Valve assembly for an injection valve and injection valve 有权
    用于注射阀和注射阀的阀组件

    公开(公告)号：EP2067983A1

    公开(公告)日：2009-06-10

    申请号：EP07023476.0

    申请日：2007-12-04

    申请人： Continental Automotive GmbH

    发明人： Bertini, Paolo ,  Grandi, Mauro

    IPC分类号： F02M61/16

    CPC分类号： F02M61/166 ,  C23C28/044 ,  C23C28/322 ,  C23C28/341 ,  C23C28/347 ,  F02M51/0675 ,  F02M61/12 ,  F02M61/1886 ,  F02M2200/9046 ,  Y10T29/49412 ,  Y10T428/30

    摘要： Valve assembly (80) of an injection valve (82), the valve assembly (80) comprising a valve body (4) including a central longitudinal axis (L), the valve body (4) comprising a cavity (8) forming an inner surface (18) of the valve body (4), the cavity (8) having a fluid inlet portion (42), and a fluid outlet portion (44), a valve needle (10) axially movable in the cavity (8), the valve needle (10) preventing a fluid flow through the fluid outlet portion (44) in a closing position and releasing the fluid flow through the fluid outlet portion (44) in further positions, the valve needle (10) and/or the inner surface (18) of the valve body (4) having a surface layer (48) comprising a tungsten carbide layer (70) and a carbon layer (72).

    摘要翻译： （82）的阀组件（80），所述阀组件（80）包括具有中心纵向轴线（L）的阀体（4），所述阀体（4）包括腔体（8），所述腔体形成内部 （8）中具有流体入口部分（42）和流体出口部分（44）的空腔（8），可在空腔（8）中轴向移动的阀针（10） 所述阀针（10）防止流体在关闭位置流过所述流体出口部分（44）并且在进一步的位置释放通过所述流体出口部分（44）的所述流体流，所述阀针（10）和/或所述内部 所述阀体（4）的表面（18）具有包括碳化钨层（70）和碳层（72）的表面层（48）。

    ELECTROMAGNETIC TYPE FUEL INJECTION VALVE
    10.
    发明授权
    ELECTROMAGNETIC TYPE FUEL INJECTION VALVE 有权
    电磁式燃料喷射阀

    公开(公告)号：EP1617071B1

    公开(公告)日：2008-08-13

    申请号：EP04722027.2

    申请日：2004-03-19

    申请人： Keihin Corporation

    发明人： AKABANE, Akira; c/o Kakuda Development Center of

    IPC分类号： F02M51/06 ,  F02M61/16

    CPC分类号： F02M51/005 ,  F02M51/0614 ,  F02M51/0675 ,  F02M61/161 ,  F02M61/165 ,  F02M61/166 ,  F02M2200/505

    摘要： In an electromagnetic type fuel injection valve (I), a fixed core (5) is made of ferritic high-hardness magnetic material, while a movable core (12) has fixed therein by a press fit a stop element (14) which comes in direct contact with the fixed core (5) during excitation of a coil (30) with an air gap (g) held between the two cores (5, 12) and which is non-magnetic or less magnetic than the movable core (12). Thus, the two cores can be given high wear resistance and responsiveness without applying a troublesome wear resistance treatment, such as plating, to the fixed and movable cores or without installing a stop plate for the valve body, a fact which can contribute to cost reduction of electromagnetic type fuel injection valves.