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    Valve seat for a ball and pin valve member in a hydraulically actuated fuel injector
    1.
    发明授权
    Valve seat for a ball and pin valve member in a hydraulically actuated fuel injector 失效
    用于液压致动燃油喷射器中的球阀和销阀构件的阀座

    公开(公告)号：US6142394A

    公开(公告)日：2000-11-07

    申请号：US343374

    申请日：1999-06-30

    申请人： Gregory W. Hefler ,  Brian J. Murphy

    发明人： Gregory W. Hefler ,  Brian J. Murphy

    IPC分类号： F02M57/02 ,  F02M59/10 ,  F02M59/46 ,  F02M47/02

    CPC分类号： F02M59/105 ,  F02M57/025 ,  F02M59/466

    摘要： A hydraulically actuated device comprises a device body defining an inlet passage separated from an outlet passage by a first valve seat and a second valve seat, and a control passage that opens into an area between the first valve seat and the second valve seat. An essentially spherical ball valve member having a first radius of curvature is trapped between the first valve seat and the second valve seat. The inlet passage is fluidly isolated from the control passage by the ball valve member when the ball valve member is in contact with the first valve seat, and the outlet passage is fluidly isolated from the control passage by the ball valve member when the ball valve member is in contact with the second valve seat. An electrical actuator is attached to the device body. A pin is movable by operation of the electrical actuator to come into contact with and push against the ball along a curved striking surface of the pin having a second radius of curvature that is larger than the first radius of curvature.

    摘要翻译： 液压致动装置包括装置主体，其限定通过第一阀座和第二阀座与出口通道分离的入口通道，以及通向第一阀座和第二阀座之间的区域的控制通道。 具有第一曲率半径的基本上球形的球阀构件被捕获在第一阀座和第二阀座之间。 当球阀构件与第一阀座接触时，入口通道由球阀构件与控制通道流体隔离，并且当球阀构件与球阀构件相接触时，出口通道与控制通道流体隔离 与第二阀座接触。 电致动器附接到装置主体。 销可通过电致动器的操作而移动，以沿着具有大于第一曲率半径的第二曲率半径的销的弯曲的打击表面接触和推动球。

    Tappet and plunger assembly adapted for a fluid injection pump
    2.
    发明授权
    Tappet and plunger assembly adapted for a fluid injection pump 失效
    适用于流体注射泵的挺杆和柱塞组件

    公开(公告)号：US5520155A

    公开(公告)日：1996-05-28

    申请号：US282136

    申请日：1994-07-28

    申请人： Gregory W. Hefler

    发明人： Gregory W. Hefler

    IPC分类号： F02B3/06 ,  F02M57/02 ,  F02M59/10 ,  F02M59/48 ,  F02M37/04

    CPC分类号： F02M59/48 ,  F02M57/023 ,  F02M59/102 ,  F02B2275/14 ,  F02B3/06 ,  Y02T10/123

    摘要： A tappet and plunger assembly adapted for fluid injection pump, such as unit fuel injector. The fuel pump plunger is retained directly to the tappet by a flexible member such as an elastomeric o-ring. If the plunger seizes in its housing bore, the flexible member will sufficiently flex and/or fail thereby allowing the tappet to i) separate from the stationary plunger and ii) remain in contact with the mating component of the moving engine drive train. The arrangement helps prevent damage to the engine by engine drive train components if the plunger becomes seized.

    摘要翻译： 适用于流体注射泵的挺杆和柱塞组件，例如单元燃料喷射器。 燃料泵柱塞通过诸如弹性O形环的柔性构件直接保持在挺杆上。 如果柱塞在其壳体孔中被捕获，则柔性构件将充分弯曲和/或失效，由此允许挺杆i）与固定柱塞分离，并且ii）保持与移动的发动机传动系的配合部件接触。 如果柱塞被抓住，该装置有助于防止由发动机传动系组件损坏发动机。

    Engine having a variable valve actuation system
    3.
    发明授权
    Engine having a variable valve actuation system 有权
    发动机具有可变阀驱动系统

    公开(公告)号：US06802285B2

    公开(公告)日：2004-10-12

    申请号：US10324049

    申请日：2002-12-18

    申请人： Gregory W. Hefler

    发明人： Gregory W. Hefler

    IPC分类号： F01L902

    CPC分类号： F01L13/065 ,  F01L1/26 ,  F01L9/02 ,  F01L2105/00 ,  F01L2760/004 ,  F02B3/06 ,  F02B75/20 ,  F02B2075/027 ,  F02B2075/1816 ,  F02B2275/34

    摘要： An engine has a cylinder head having a first surface and a second surface spaced from the first surface. A valve is moveably connected to the cylinder head. A rocker arm is connected to the valve, and a rocker shaft having a first location spaced a maximum distance from the cylinder head is connected to the rocker arm. A support member has and an actuator fluid passage network. The actuator fluid passage network defines a volume. The support member is connected to the cylinder head and is positioned such that a majority of the volume of the actuator fluid passage network is between the first location of the rocker shaft and the second surface of the cylinder head.

    摘要翻译： 发动机具有气缸盖，其具有与第一表面间隔开的第一表面和第二表面。 阀可移动地连接到气缸盖。 摇臂连接到阀，并且具有与气缸盖间隔最大距离的第一位置的摇臂轴连接到摇臂。 支撑构件具有致动器流体通道网络。 致动器流体通道网络限定体积。 支撑构件连接到气缸盖并且被定位成使得致动器流体通道网络的大部分体积在摇臂轴的第一位置和气缸盖的第二表面之间。

    Hydraulically-actuated fuel injector with direct control needle valve
    5.
    发明授权
    Hydraulically-actuated fuel injector with direct control needle valve 失效
    具有直接控制针阀的液压致动式燃油喷射器

    公开(公告)号：US5687693A

    公开(公告)日：1997-11-18

    申请号：US707804

    申请日：1996-08-30

    申请人： Shikui K. Chen ,  Gregory W. Hefler

    发明人： Shikui K. Chen ,  Gregory W. Hefler

    IPC分类号： F02G5/00 ,  F02M45/04 ,  F02M47/02 ,  F02M47/04 ,  F02M57/02 ,  F02M59/10 ,  F02M59/36 ,  F02M59/46 ,  F02M63/00 ,  F02M63/02 ,  F02M41/00 ,  F16K31/40

    CPC分类号： F02G5/00 ,  F02M45/04 ,  F02M47/027 ,  F02M47/043 ,  F02M57/025 ,  F02M59/105 ,  F02M59/366 ,  F02M59/466 ,  F02M63/0017 ,  F02M63/0029 ,  F02M63/0042 ,  F02M63/0045 ,  F02M63/0049 ,  F02M63/0061 ,  F02B2275/14 ,  F02M2200/21 ,  F02M2200/502 ,  Y02T10/123 ,  Y02T10/166

    摘要： A hydraulically actuated fuel injector includes an injector body having an actuation fluid inlet, an actuation fluid cavity, a nozzle chamber open to a nozzle outlet and a needle control chamber. A hydraulic means within the injector pressurizes fuel in the nozzle chamber. The hydraulic means includes an actuation fluid control valve having a solenoid and is moveable between a first position in which the actuation fluid inlet is open to the actuation fluid cavity and a second position in which the actuation fluid inlet is closed to the actuation fluid cavity. A needle valve member is positioned to reciprocate in the nozzle chamber between an open position in which the nozzle outlet is open and a closed position in which the nozzle outlet is closed. The needle valve member includes a closing hydraulic surface exposed to pressure in the needle control chamber. A needle control valve that also utilizes the same solenoid is attached to the injector body and moveable between an off position in which the needle control chamber is opened to a source of high pressure fluid and an on position in which the needle control chamber is opened to a low pressure passage. The slower response time of the actuation fluid control valve allows for direct control of the fast responding needle valve.

    摘要翻译： 液压致动的燃料喷射器包括具有致动流体入口，致动流体腔，到喷嘴出口开口的喷嘴室和针控制室的喷射器主体。 注射器内的液压装置对喷嘴室中的燃料加压。 液压装置包括具有螺线管的致动流体控制阀，并且可在致动流体入口与致动流体腔相通的第一位置和致动流体入口关闭到致动流体腔的第二位置之间移动。 针阀构件被定位成在喷嘴室中在喷嘴出口打开的打开位置和喷嘴出口关闭的关闭位置之间往复运动。 针阀构件包括暴露于针控制室内的压力的关闭液压表面。 也使用相同螺线管的针控制阀被附接到喷射器主体，并且可以在针控制室打开的关闭位置与高压流体源之间以及针控制室打开的打开位置之间移动 低压通道。 致动流体控制阀的较慢的响应时间允许直接控制快速响应的针阀。

    Check valve with separate spherical spring guide
    7.
    发明申请
    Check valve with separate spherical spring guide 有权
    止回阀带有单独的球形弹簧导轨

    公开(公告)号：US20100037965A1

    公开(公告)日：2010-02-18

    申请号：US12222711

    申请日：2008-08-14

    申请人： Gregory W. Hefler ,  Michael C. Long ,  Senthilkumar Rajagopalan ,  Donald A. Fuller

    发明人： Gregory W. Hefler ,  Michael C. Long ,  Senthilkumar Rajagopalan ,  Donald A. Fuller

    IPC分类号： F16K15/00

    CPC分类号： F16K15/025 ,  F02M59/08 ,  F02M59/462 ,  F02M63/0265 ,  F16K17/04 ,  Y10T137/7925

    摘要： A check valve for use with a pump is disclosed. The check valve may have a body at least partially defining a central bore with an open end and a closed end, and a spring guide separate from the body and disposed within the closed end of the central bore. The check valve may also have a spring located within the central bore and having a first end operatively engaged with the spring guide, and a valve element operatively engaged with a second end of the spring and being movable by a pressure differential to compress the spring. The spring guide may be moveable relative to the body.

    摘要翻译： 公开了一种用于泵的止回阀。 止回阀可以具有至少部分地限定具有开口端和封闭端的中心孔的主体，以及与主体分离并设置在中心孔的封闭端内的弹簧引导件。 止回阀还可以具有位于中心孔内的弹簧并具有与弹簧引导件可操作地接合的第一端以及与弹簧的第二端可操作地接合并且可通过压力差移动以压缩弹簧的阀元件。 弹簧引导件可以相对于身体移动。

    Electrical actuator subassembly with external threads and fuel injector using same
    9.
    发明授权
    Electrical actuator subassembly with external threads and fuel injector using same 有权
    具有外螺纹的电子执行器组件和使用相同的燃油喷射器

    公开(公告)号：US06742728B2

    公开(公告)日：2004-06-01

    申请号：US09927815

    申请日：2001-08-10

    申请人： Ralph A. Smith, III ,  Gregory W. Hefler ,  Clifford E. Cotton ,  Richard H. Holtman

    发明人： Ralph A. Smith, III ,  Gregory W. Hefler ,  Clifford E. Cotton ,  Richard H. Holtman

    IPC分类号： F02M3900

    CPC分类号： F02M59/468 ,  F02M57/025 ,  F02M59/466

    摘要： An electrical actuator subassembly, preferably for use in a fuel injector, includes an externally threaded ferromagnetic metallic body, an internally threaded collar, an electrical actuator, an electrical connector, and a plastic cap. In one embodiment, the electrical actuator is a solenoid, while a piezoelectric actuator is used in a second embodiment. The electrical actuator directly controls a pilot valve member positioned between the metallic body and the injector body, and a needle valve which opens or closes a nozzle outlet at the bottom of the injector. The electrical actuator subassembly is attached to a fuel injector body by mating the external threads of the metallic body to the internal threads of the collar. The collar is attached to the injector body with a groove and snap ring configuration.

    摘要翻译： 优选用于燃料喷射器的电动执行器子组件包括外螺纹铁磁金属体，内螺纹套环，电致动器，电连接器和塑料盖。 在一个实施例中，电致动器是螺线管，而在第二实施例中使用压电致动器。 电致动器直接控制定位在金属体和喷射器主体之间的先导阀构件，以及打开或关闭喷射器底部的喷嘴出口的针阀。 电致动器子组件通过将金属体的外螺纹与套环的内螺纹相配合而连接到燃料喷射器主体。 套环通过凹槽和卡环配置连接到喷射器主体。