Fuel injector with injection rate control
    2.
    发明授权
    Fuel injector with injection rate control 有权
    燃油喷射器,喷油率控制

    公开(公告)号:US07334741B2

    公开(公告)日:2008-02-26

    申请号:US11044724

    申请日:2005-01-28

    IPC分类号: F02D1/06

    摘要: A closed nozzle fuel injector is provided which effectively controls the fuel injection flow rate, especially during an initial portion of an injection event, while also permitting accurate control over pilot and/or post injection flow rates at all operating conditions thereby advantageously reducing emissions and combustion noise. The injector includes a rate shaping orifice to restrict fuel flow during an initial portion of an injection event and a rate shaping sleeve mounted for movement to cause a greater flow of injection fuel during a later portion of the injection event. A damping chamber and orifice are also provided to control movement of the rate shaping sleeve.

    摘要翻译: 提供了一种封闭的喷嘴燃料喷射器,其特别是在喷射事件的初始部分期间有效地控制燃料喷射流量,同时还允许在所有操作条件下精确控制先导和/或后喷射流量,从而有利地减少排放和燃烧 噪声。 喷射器包括速率成形孔,用于限制喷射事件的初始部分期间的燃料流量,以及安装成用于在喷射事件的稍后部分期间引起更大喷射燃料流量的速率成形套筒。 还提供阻尼室和孔口以控制速率成形套筒的运动。

    Device and method for measuring transient magnetic performance
    4.
    发明授权
    Device and method for measuring transient magnetic performance 有权
    用于测量瞬态磁性能的装置和方法

    公开(公告)号:US07248041B2

    公开(公告)日:2007-07-24

    申请号:US10628606

    申请日:2003-07-28

    IPC分类号: G01N27/72 G01R33/12

    CPC分类号: G01R33/123

    摘要: A device for evaluating magnetic component performance and methods of evaluating transient magnetic performance of such components are disclosed. Magnetic flux capacity and/or energy loss of a magnetic component is/are measured, and the measurement data is electronically processed to evaluate the magnetic performance of the component.

    摘要翻译: 公开了一种用于评估磁性部件性能的装置和评估这些部件的瞬态磁性能的方法。 测量磁性部件的磁通量和/或能量损失,并且电子处理测量数据以评估部件的磁性能。

    Low leakage plunger assembly for a high pressure fluid system
    5.
    发明授权
    Low leakage plunger assembly for a high pressure fluid system 有权
    用于高压流体系统的低泄漏柱塞组件

    公开(公告)号:US08757047B2

    公开(公告)日:2014-06-24

    申请号:US12048743

    申请日:2008-03-14

    IPC分类号: F16J9/00

    CPC分类号: F02M59/442 F02M59/02

    摘要: A fluid control device for use in a high pressure fluid system, the device including a device body with a cavity and a high pressure circuit, a plunger positioned for reciprocal movement in the cavity, and a leakage reduction cap mounted to the plunger for reducing fluid leakage flow. In one implementation, the leakage reduction cap includes a flexible portion positioned between the device body and the plunger, and defining an annular clearance gap between the leakage reduction cap and the device body. The flexible portion of the leakage reduction cap resiliently flexes radially outwardly in response to fluid pressure forces to reduce the annular clearance gap so as to minimize fluid leakage flow through the annular clearance gap.

    摘要翻译: 一种用于高压流体系统的流体控制装置,该装置包括具有空腔和高压回路的装置主体,用于在空腔中往复运动的柱塞,以及安装到柱塞上以减少流体的泄漏减小帽 泄漏流量。 在一个实施方案中,泄漏减小帽包括位于装置主体和柱塞之间的柔性部分,并且在泄漏减小帽和装置主体之间限定环形间隙。 泄漏减小帽的柔性部分响应于流体压力弹性地径向向外弯曲,以减小环形间隙,从而使通过环形间隙的流体泄漏流量最小化。

    Solenoid actuated flow control valve assembly
    6.
    发明授权
    Solenoid actuated flow control valve assembly 有权
    电磁阀驱动流量控制阀总成

    公开(公告)号:US6056264A

    公开(公告)日:2000-05-02

    申请号:US195679

    申请日:1998-11-19

    摘要: A solenoid actuated valve assembly is provided which achieves accurate control of valve movement while maximizing valve seat life. Specifically, the solenoid actuated flow control valve assembly includes a valve plunger, a solenoid actuator including a coil and an armature, and an armature overtravel feature for permitting continued movement of the armature relative to the valve plunger from an engaged position into a disengaged position when the valve plunger reaches a closed position. The armature overtravel feature includes an overtravel biasing spring for returning the armature from the disengaged position to the engaged position prior to subsequent energization of the actuator coil. As a result, the overtravel feature minimizes the mass impacting the valve seat thereby extending valve seat life while, importantly, avoiding lost motion in the armature during the next actuation cycle thereby minimizing valve response time. The flow control valve also includes an armature protecting feature for minimizing armature wear by preventing the armature from contacting the valve plunger and an armature stop.

    摘要翻译: 提供电磁致动阀组件,其实现阀门运动的精确控制,同时最大化阀座寿命。 具体地,螺线管致动的流量控制阀组件包括阀柱塞,包括线圈和电枢的螺线管致动器以及衔铁超程特征,用于允许电枢相对于阀柱塞从接合位置继续移动到脱离位置, 阀柱塞到达关闭位置。 电枢超行程特征包括超程偏置弹簧,用于在致动器线圈的继续通电之前将电枢从分离位置返回到接合位置。 因此,超程特征使得阀座的质量最小化,从而延长阀座寿命,同时重要的是避免在下一个致动周期期间电枢中的运动不足,从而使阀响应时间最小化。 流量控制阀还包括电枢保护特征,用于通过防止电枢接触阀柱塞和电枢止挡来最小化电枢磨损。

    High pressure control valve for a fuel injection system
    7.
    发明授权
    High pressure control valve for a fuel injection system 失效
    用于燃油喷射系统的高压控制阀

    公开(公告)号:US5626325A

    公开(公告)日:1997-05-06

    申请号:US528303

    申请日:1995-09-14

    摘要: A high pressure control valve according to the present invention provides effective and predictable control of a timing fluid and injection fuel metering system of an internal combustion engine. The control valve includes an armature that abuts against a majority of the surface of a valve element to help minimize beating problems. In addition, a compliant web means provides a flexing motion when the valve element seats with a valve seat to mitigate problems of seat beating. Furthermore, the present invention reduces the number of parts of the control valve to achieve simplicity in structure and lower costs, including eliminating the need for a valve stop pin.

    摘要翻译: 根据本发明的高压控制阀提供对内燃机的定时流体和喷射燃料计量系统的有效和可预测的控制。 控制阀包括抵靠阀元件的大部分表面的电枢,以帮助最小化打浆问题。 此外,当阀元件与阀座配合以减轻座椅打浆的问题时,柔性腹板装置提供弯曲运动。 此外,本发明减少了控制阀的部件数量,以实现结构简单和成本降低,包括不需要阀止动销。

    Ball guide for an electronically actuated control valve
    8.
    发明授权
    Ball guide for an electronically actuated control valve 失效
    用于电子控制阀的滚珠导轨

    公开(公告)号:US5549274A

    公开(公告)日:1996-08-27

    申请号:US230250

    申请日:1994-04-20

    IPC分类号: F02M59/46 F16K1/14 F16K31/06

    摘要: A valve for selectively permitting the flow of fluid therethrough is disclosed including a housing having at least one inlet and at least one outlet, a valve seat provided in the housing about the inlet, a displaceable ball for cooperating with the valve seat for sealing fluidic communication between the inlet and outlet and a ball guide for guiding the ball between a closed position in contact with the valve seat and an open position spaced from the valve seat. The ball guide includes a central bore for reciprocally receiving the ball and a plurality of circumferentially spaced fluid passages in fluid communication with the inlet, the passages extending substantially parallel to a longitudinal extent of the central bore such that a flow of fluid through the inlet is directed radially outwardly from the central bore and into the circumferentially spaced passages when the ball is in the open position. Fluid flow through the valve seat is thus restricted to flow through a sharp right angle bend allowing more fluid momentum to be used to hold the ball in a stable position. Accordingly, a majority of the flow is directed underneath the ball and only a small amount of flow goes through the clearance between the ball and the central bore of the ball guide, such that the ball is maintained in a stable condition thus resulting in more consistent flow metering.

    摘要翻译: 公开了一种用于选择性地允许流体流过的阀,其包括具有至少一个入口和至少一个出口的壳体,围绕入口设置在壳体中的阀座,用于与阀座配合以用于密封流体连通的可移位球 在入口和出口之间以及球引导件,用于在与阀座接触的关闭位置和与阀座间隔开的打开位置之间引导球。 球引导件包括用于往复地接收球的中心孔和与入口流体连通的多个周向间隔开的流体通道,通道基本上平行于中心孔的纵向延伸,使得通过入口的流体流是 当球处于打开位置时,从中心孔径向向外指向周向间隔开的通道。 因此,通过阀座的流体流动被限制流过锋利的直角弯曲,允许更多的流体动量用于将球保持在稳定的位置。 因此,大部分流动被引导到球的下方,并且只有少量的流动通过球和球导向件的中心孔之间的间隙,使得球保持在稳定状态,从而导致更一致 流量测量。