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    Cavitation erosion reduction strategy for valve member and fuel injector utilizing same
    2.
    发明授权
    Cavitation erosion reduction strategy for valve member and fuel injector utilizing same 有权
    阀件和燃油喷射器的气蚀减蚀策略

    公开(公告)号：US08333336B2

    公开(公告)日：2012-12-18

    申请号：US11714697

    申请日：2007-03-06

    申请人： Stephen R. Lewis ,  Dana R. Coldren ,  Jeffrey J. Mueller ,  Victor Yacoub

    发明人： Stephen R. Lewis ,  Dana R. Coldren ,  Jeffrey J. Mueller ,  Victor Yacoub

    IPC分类号： B05B1/30

    CPC分类号： F02M57/023 ,  F02M59/366 ,  F02M61/168 ,  F02M63/0015 ,  F02M63/0031 ,  F02M65/00 ,  F02M2200/04 ,  F02M2200/80 ,  F02M2200/8076

    摘要： A mechanically actuated electronically controlled unit injector includes an electronically controlled spill valve to precisely control timing of fuel pressurization within a fuel pressurization chamber. Cavitation bubbles may be generated in the region of the valve seat when the spill valve member is closed to raise fuel pressure in the fuel injector. This cavitation can cause erosion on the spill valve member and the surrounding injector body. In order to preempt cavitation damage, the valve member may be modified to include a compound annulus that includes a small annulus that corresponds to an identified cavitation damage pattern. Although the generation of cavitation bubbles may continue after such a strategy, cavitation erosion, and the associated liberation of metallic particles into the fuel system can be reduced, and maybe eliminated, by the preemptive cavitation reduction strategy.

    摘要翻译： 机械致动的电子控制单元喷射器包括电子控制的溢流阀，以精确地控制燃料加压室内的燃料加压的时间。 当泄漏阀构件关闭以在燃料喷射器中提高燃料压力时，可能在阀座的区域中产生气蚀气泡。 这种气蚀可能导致溢流阀构件和周围注射器主体的侵蚀。 为了预防气蚀损伤，阀构件可以被修改为包括复合环，其包括对应于所识别的空化损伤模式的小环。 虽然在这样的策略之后产生气蚀气泡可能会持续，但可以通过先发制人的空化减少策略来减少气蚀侵蚀和相关的金属颗粒向燃料系统的释放。

    STATOR ASSEMBLY AND FUEL INJECTOR USING SAME
    5.
    发明申请
    STATOR ASSEMBLY AND FUEL INJECTOR USING SAME 审中-公开
    定子组装和燃油喷射器使用相同

    公开(公告)号：US20120061491A1

    公开(公告)日：2012-03-15

    申请号：US13296680

    申请日：2011-11-15

    申请人： Jayaraman K. Venkataraghavan ,  Stephen R. Lewis ,  Shriprasad Lakhapati ,  Avinash R. Manubolu ,  Nadeem N. Bunni

    发明人： Jayaraman K. Venkataraghavan ,  Stephen R. Lewis ,  Shriprasad Lakhapati ,  Avinash R. Manubolu ,  Nadeem N. Bunni

    IPC分类号： F02M51/00 ,  B23P11/00

    CPC分类号： F02M47/027 ,  F02M53/04 ,  F02M53/043 ,  F02M2700/077 ,  Y10T29/49826

    摘要： A fuel injector for a common rail fuel system includes a common rail inlet port fluidly connected to a high pressure common rail, and a cooling inlet fluidly connected to an output from a lower pressure fuel transfer pump. The cooling fluid circulates internally through the fuel injector to cool a single pole solenoid via both internal and peripheral cooling passages. In order to accommodate a small spatial envelope while providing superior performance, a thin insulating layer may separate the solenoid coil winding from an inner pole piece, and small flux gap clearances may permit a flux carrying portion of the injector body to be a portion of the single pole solenoid assembly.

    摘要翻译： 用于共轨燃料系统的燃料喷射器包括流体连接到高压共轨的共轨入口和与低压燃料输送泵的输出流体连接的冷却入口。 冷却流体在内部循环通过燃料喷射器，以通过内部和外部冷却通道冷却单极螺线管。 为了适应小的空间包络，同时提供优异的性能，薄的绝缘层可以将螺线管线圈绕组与内极片分开，并且小的通量间隙间隙可以允许喷射器主体的磁通承载部分是 单极螺线管总成。

    Two wire intensified common rail fuel system
    6.
    发明授权
    Two wire intensified common rail fuel system 有权
    两线加强共轨燃油系统

    公开(公告)号：US07980224B2

    公开(公告)日：2011-07-19

    申请号：US12322479

    申请日：2009-02-03

    申请人： Stephen R. Lewis ,  Bradley E. Bartley ,  Avinash R. Manubolu ,  Shriprasad G. Lakhapati ,  Dianqi Fang ,  Michael Gerstner ,  Christopher D. Hanson ,  Jeffrey M. Mullinix

    发明人： Stephen R. Lewis ,  Bradley E. Bartley ,  Avinash R. Manubolu ,  Shriprasad G. Lakhapati ,  Dianqi Fang ,  Michael Gerstner ,  Christopher D. Hanson ,  Jeffrey M. Mullinix

    IPC分类号： F02M37/04 ,  F02M47/02

    CPC分类号： F02M63/0275 ,  F02M47/027 ,  F02M63/0026 ,  F02M63/0225 ,  F02M2200/701

    摘要： A fuel system includes a plurality of fuel injectors fluidly connected to a common rail. Each of the fuel injectors has at least one body component and includes an intensifier control valve for controlling movement of an intensifier piston, a needle control valve for controlling movement of a needle valve member, and exactly one electrical actuator coupled with the intensifier control valve and the needle control valve via a coupling linkage. The intensifier control valve and the needle control valve each include a valve member that is movable with respect to a valve seat. The electrical actuator includes an intermediate position during which the valve member of one of the intensifier control valve and the needle control valve is in contact with the respective valve seat, and the valve member of the other of the intensifier control valve and the needle control valve is out of contact with the respective valve seat.

    摘要翻译： 燃料系统包括流体地连接到共轨的多个燃料喷射器。 每个燃料喷射器具有至少一个主体部件，并且包括用于控制增压器活塞运动的增压器控制阀，用于控制针阀构件的运动的针控制阀以及与增压器控制阀耦合的恰好一个电致动器，以及 针控制阀通过联轴器连接。 增压器控制阀和针控制阀各自包括可相对于阀座移动的阀构件。 电致动器包括中间位置，在该中间位置，增压器控制阀和针控制阀之一的阀构件与相应的阀座接触，另一个增压器控制阀的阀构件和针控制阀 与相应的阀座脱离接触。

    SOLENOID ACTUATED DEVICE AND METHODS
    7.
    发明申请
    SOLENOID ACTUATED DEVICE AND METHODS 有权
    电磁阀动作装置及方法

    公开(公告)号：US20110168813A1

    公开(公告)日：2011-07-14

    申请号：US12684379

    申请日：2010-01-08

    申请人： Nadeem N. Bunni ,  Jayaraman K. Venkataraghavan ,  Stephen R. Lewis

    发明人： Nadeem N. Bunni ,  Jayaraman K. Venkataraghavan ,  Stephen R. Lewis

    IPC分类号： F02M51/00 ,  F16K31/02 ,  H01F7/06

    CPC分类号： F02M47/027 ,  F02M63/0021 ,  H01F7/1638 ,  Y10T29/4902

    摘要： A solenoid actuated device such as a fuel injector includes an actuator body having a plurality of body pieces, and a single-pole solenoid actuator assembly positioned at least partially within the actuator body. The single-pole solenoid actuator assembly includes a one-piece compound armature housing having a load carrying component clamped between the first body piece and the second body piece, and a flux carrying component. The load carrying component includes a high structural strength and a low flux permeability, and the flux carrying component includes a low structural strength and a high flux permeability. A method of making a solenoid actuated device includes placing an armature at a sliding radial air gap with a flux carrying component of a one-piece compound armature housing, and establishing a structural load path by placing a load carrying component of the compound armature housing between a first actuator body piece and a second actuator body piece. A method of operating a single-pole solenoid actuator device includes supporting a flux carrying component of a one-piece compound armature housing with a load carrying component of the compound armature housing, channeling magnetic flux across a sliding air gap between a flux carrying component and the armature, and channeling a clamping load between a first actuator body piece and a second actuator body piece through the load carrying component of the compound armature housing.

    摘要翻译： 诸如燃料喷射器的电磁致动装置包括具有多个主体件的致动器主体和至少部分地位于致动器主体内的单极螺线管致动器组件。 单极螺线管致动器组件包括具有夹在第一主体件和第二主体件之间的承载部件的一件式复合电枢壳体和一个磁通承载部件。 承载部件具有高的结构强度和低的磁通密度，并且磁通承载部件包括低结构强度和高磁通量。 一种制造螺线管致动装置的方法包括将衔铁放置在具有一体式复合电枢壳体的磁通承载部件的滑动径向气隙处，并且通过将复合电枢壳体的承载部件放置在 第一致动器主体部件和第二致动器主体部件。 一种操作单极螺线管致动器装置的方法包括：将具有复合电枢壳体的载荷部件的一体式复合电枢壳体的磁通承载部件支撑，将磁通量穿过载流部件和 并且通过复合电枢壳体的承载部件引导第一致动器本体件和第二致动器本体件之间的夹紧负载。

    Self-guided armature in single pole solenoid actuator assembly and fuel injector using same
    8.
    发明授权
    Self-guided armature in single pole solenoid actuator assembly and fuel injector using same 有权
    单电磁螺线管执行器组件中的自导电枢和使用其的燃油喷射器

    公开(公告)号：US07866301B2

    公开(公告)日：2011-01-11

    申请号：US12321809

    申请日：2009-01-26

    申请人： Jayaraman K. Venkataraghavan ,  Stephen R. Lewis ,  Nadeem N. Bunni ,  Shriprasad Lakhapati

    发明人： Jayaraman K. Venkataraghavan ,  Stephen R. Lewis ,  Nadeem N. Bunni ,  Shriprasad Lakhapati

    IPC分类号： F02M51/06 ,  H01F7/16 ,  F16K31/06

    CPC分类号： F02M47/027 ,  F02M63/0019 ,  F02M63/0024 ,  H01F7/081 ,  H01F7/1638

    摘要： A self-guided armature assembly for a single pole solenoid assembly includes an armature stem and an armature. The solenoid assembly includes a flux ring component and an actuator body. The armature is movable inside the flux ring. An axial air gap is defined between the top armature surface of the armature and a bottom stator surface of a stator assembly. A sliding air gap is defined between an inner diameter surface of the flux ring and an outer diameter surface of the armature. The self-guided armature is guided along the flux ring via a guiding interaction between the armature and the flux ring. The sliding air gap is smaller than the axial air gap. A stem clearance gap is defined between the armature stem and the actuator body. The sliding air gap is also smaller than the stem clearance gap.

    摘要翻译： 用于单极螺线管组件的自导电枢组件包括电枢杆和电枢。 螺线管组件包括磁通环部件和致动器主体。 电枢可在磁通环内移动。 轴向气隙限定在电枢的顶部电枢表面和定子组件的底部定子表面之间。 滑动气隙限定在磁通环的内径表面和电枢的外径表面之间。 自导向电枢通过电枢和磁通环之间的引导相互作用沿磁通环引导。 滑动气隙小于轴向气隙。 在电枢杆和致动器主体之间限定了杆间隙。 滑动气隙也小于阀杆间隙。

    Valve member to armature coupling system and fuel injector using same
    9.
    发明授权
    Valve member to armature coupling system and fuel injector using same 有权
    阀构件到电枢联接系统和使用其的燃料喷射器

    公开(公告)号：US07779854B2

    公开(公告)日：2010-08-24

    申请号：US11652877

    申请日：2007-01-12

    申请人： Stephen R. Lewis ,  Dana R. Coldren ,  Amy Johanson ,  Jeffrey Mueller ,  Eric L. Rogers

    发明人： Stephen R. Lewis ,  Dana R. Coldren ,  Amy Johanson ,  Jeffrey Mueller ,  Eric L. Rogers

    IPC分类号： F02M51/06

    CPC分类号： F02M63/0015 ,  F02M47/027 ,  F02M57/023 ,  F02M61/205 ,  F02M63/004 ,  F02M63/0043 ,  F02M63/0049 ,  F02M63/0064 ,  F02M63/007 ,  F02M2200/8053 ,  Y10T29/49826 ,  Y10T137/0491 ,  Y10T137/6065

    摘要： A relatively inexpensive robust attachment strategy that insures good perpendicularity between a valve member and an armature utilizes an intervening nut between the armature and valve member. A valve member is received in a guide bore of a valve body. A nut is threaded onto one end of a valve member. The armature is press fit onto a orientation neutral interface of the nut, and a fixture is utilized to set near perfect perpendicularity between an air gap plane of the armature and a centerline of the valve member. The armature is then welded to the valve member. The weld may be accomplished via laser welding while the valve assembly is firmly held in an appropriate position within the fixture. The valve assembly may be then incorporated into a fuel injector stack of components in a conventional manner.

    摘要翻译： 确保阀构件和衔铁之间的良好垂直度的相对便宜的鲁棒附件策略利用电枢和阀构件之间的中间螺母。 阀构件被容纳在阀体的导向孔中。 螺母被拧到阀构件的一端。 衔铁被压配合到螺母的定向中性界面上，并且固定装置用于设定衔铁的气隙平面与阀构件的中心线之间的接近完美的垂直度。 然后将电枢焊接到阀构件。 焊接可以通过激光焊接实现，同时阀组件牢固地保持在固定装置内的适当位置。 然后可以以常规方式将阀组件结合到燃料喷射器组件中。

    Non-guided tappet and fuel injector using same
    10.
    发明授权
    Non-guided tappet and fuel injector using same 失效
    非引导挺杆和燃油喷射器使用相同

    公开(公告)号：US07610888B2

    公开(公告)日：2009-11-03

    申请号：US12082017

    申请日：2008-04-08

    申请人： Eric L. Rogers ,  Stephen R. Lewis ,  Dana R. Coldren

    发明人： Eric L. Rogers ,  Stephen R. Lewis ,  Dana R. Coldren

    IPC分类号： F02M47/02 ,  F01L1/14

    CPC分类号： F02M57/023 ,  F02M59/102 ,  Y10T29/49412 ,  Y10T74/2107

    摘要： A fuel injector includes an injector body having an internal surface and an external surface. A tappet assembly includes a non-guided tappet and a plunger assembly, and is mounted on the injector body. The tappet assembly is movable with respect to the injector body a displacement distance between an advanced position and an extended position. A portion of the plunger assembly is slidably guided along the internal surface of the injector body, while the non-guided tappet is free of contact with both the internal surface and the external surface of the injector body in the advanced and extended positions. The tappet assembly may be prevented from moving beyond the extended position using a snap ring positioned within a retention opening of the fuel injector body.

    摘要翻译： 燃料喷射器包括具有内表面和外表面的喷射器主体。 挺杆组件包括非引导挺杆和柱塞组件，并且安装在喷射器主体上。 挺杆组件相对于喷射器主体可以在前进位置和伸出位置之间的位移距离移动。 柱塞组件的一部分沿着喷射器主体的内表面可滑动地被引导，而未被引导的挺杆在先进和伸出位置中与喷射器主体的内表面和外表面都不接触。 可以使用位于燃料喷射器主体的保持开口内的卡环来防止挺杆组件移动超过伸出位置。