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    MULTI-PATH FLUID DIVERTER VALVE
    1.
    发明申请
    MULTI-PATH FLUID DIVERTER VALVE 有权
    多通道流体流量阀

    公开(公告)号：US20160031285A1

    公开(公告)日：2016-02-04

    申请号：US14777068

    申请日：2014-03-14

    Applicant: LEVANT POWER CORPORATION

    Inventor： Clive Tucker ,  Johannes Schneider ,  Colin Patrick O'Shea ,  Marco Giovanardi ,  Richard Anthony Zuckerman ,  Patrick W. Neil

    IPC: B60G17/016 ,  F16K31/12 ,  F16K11/065

    CPC classification number: B60G17/016 ,  B60G15/10 ,  B60G2202/413 ,  B60G2204/11 ,  B60G2400/0511 ,  B60G2400/0521 ,  B60G2400/60 ,  B60G2800/70 ,  F04B49/20 ,  F15B13/0444 ,  F16K11/065 ,  F16K31/12

    Abstract: A multi-path fluid flow control valve for a shock absorber that restricts fluid into a first path while opening fluid flow to a second path when a given fluid flow velocity is reached. Exemplary configurations of this diverter valve are disclosed such as a spring loaded disc valve with face sealing lands, and a spool valve with diametric sealing lands. Applications include active suspension dampers in order to limit maximum RPM into a hydraulic motor. For such a system, in one mode the diverter valve allows fluid to move unrestricted into the hydraulic motor. When fluid velocity reaches a tunable set point, in a second mode the diverter valve restricts flow into the hydraulic motor and bypasses it shuttling fluid into the opposite side of the damper. In some cases progressive damping valves are utilized in series or parallel to smooth damping characteristics during, before, and after transitions.

    Abstract translation: 一种用于减震器的多通道流体流量控制阀，其在达到给定的流体流速时将流体限制在第一路径中，同时打开流体流向第二路径。 公开了这种分流阀的示例性构造，例如具有面密封平台的弹簧加载的圆盘阀和具有直径密封面的滑阀。 应用包括主动悬架阻尼器，以将最大转速限制在液压马达内。 对于这种系统，在一种模式中，分流阀允许流体不受限制地移动到液压马达中。 当流体速度达到可调整设定点时，在第二模式中，分流阀限制流入液压马达的流量，并使其穿过流体进入阻尼器的相对侧。 在某些情况下，渐进阻尼阀在过渡期间，过渡期间和转移之后以串联或平行方式被利用以平滑阻尼特性。

    ACTIVE ADAPTIVE HYDRAULIC RIPPLE CANCELLATION ALGORITHM AND SYSTEM
    4.
    发明申请
    ACTIVE ADAPTIVE HYDRAULIC RIPPLE CANCELLATION ALGORITHM AND SYSTEM 审中-公开
    主动自适应液压纹波消除算法与系统

    公开(公告)号：US20140294601A1

    公开(公告)日：2014-10-02

    申请号：US14242636

    申请日：2014-04-01

    Applicant: Levant Power Corporation

    Inventor： Colin Patrick O'Shea ,  Tyson David Sawyer ,  Marco Giovanardi

    IPC: F04D25/06

    CPC classification number: B60G17/00 ,  B60G11/265 ,  B60G17/015 ,  B60G17/0152 ,  B60G17/018 ,  B60G17/019 ,  B60G17/0195 ,  B60G17/08 ,  B60G2400/90 ,  F16F9/19 ,  F16F9/512 ,  H02K5/12 ,  H02K7/14 ,  H02K7/1823 ,  H02K11/215 ,  H02K11/22 ,  H02K11/33 ,  H02K29/08 ,  H02K29/10 ,  H02P6/16

    Abstract: Hydraulic pumps/motors are used to convert between rotational motion/power and fluid motion/power. Pressure differential is achieved across the pump/motor by applying torque to either aid or impede rotation which generally results in either a pressure rise or pressure drop respectively across the unit. This torque is often supplied by an electric motor/generator. Especially in positive displacement pumps/motors this pressure differential is not a smooth value but rather it contains high frequency fluctuations known as pressure ripple that are largely undesirable. With thorough analysis it can be discovered that these fluctuations occur in a predictable manner with respect to the position (angular or linear) of the pump/motor. Using a model that contains this information, a feed-forward method of high-frequency motor torque control is implemented directly on the hydraulic pump/motor by adding to the nominal torque, a model-based torque signal that is linked to rotor position. This high-frequency signal acts directly on the hydraulic pump/motor to reduce or cancel the pressure/flow ripple of the pump/motor itself without the need for any secondary flow generating devices.

    Abstract translation: 液压泵/电机用于在旋转运动/功率和流体运动/功率之间转换。 通过施加扭矩来帮助或阻止旋转，通过泵/马达实现压差，这通常导致单元上的压力上升或压降。 该扭矩通常由电动机/发电机提供。 特别是在容积式泵/电动机中，该压差不是平滑的值，而是包含被称为压力波动的高频波动，这在很大程度上是不希望的。 通过彻底的分析，可以发现这些波动相对于泵/马达的位置（角度或线性）以可预测的方式发生。 使用包含该信息的模型，通过增加与转子位置相关联的基于模型的扭矩信号的额定转矩，直接在液压泵/电机上实现高频电机转矩控制的前馈方法。 这种高频信号直接作用在液压泵/马达上，以减少或消除泵/马达本身的压力/流动波动，而不需要任何二次流产生装置。

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