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    THROUGH TUBE ACTIVE SUSPENSION ACTUATOR
    1.
    发明申请
    THROUGH TUBE ACTIVE SUSPENSION ACTUATOR 审中-公开

    公开(公告)号：WO2019168858A2

    公开(公告)日：2019-09-06

    申请号：PCT/US2019/019616

    申请日：2019-02-26

    Applicant: CLEARMOTION, INC.

    Inventor： TUCKER, Clive ,  MCGUINNESS, Kevin, Ryan ,  WANG, Zhenrong ,  WIZOREK, Andrew, Martin

    IPC: F04B1/02

    Abstract: Disclosed herein are active hydraulic cylinders for use in active vehicle suspension systems, and methods for assembling active hydraulic cylinders for use in an active vehicle suspension system. In particular, in certain embodiments a manifold may encircle a portion of an outer tube of a twin tube assembly. The manifold may mechanically and fluidly couple a pump assembly to the twin tube assembly. In certain embodiments, the manifold may be welded onto the outer tube.

    PRESSURE COMPENSATED ACTIVE SUSPENSION ACTUATOR SYSTEM
    5.
    发明申请
    PRESSURE COMPENSATED ACTIVE SUSPENSION ACTUATOR SYSTEM 审中-公开

    公开(公告)号：WO2020185968A1

    公开(公告)日：2020-09-17

    申请号：PCT/US2020/022193

    申请日：2020-03-11

    Applicant: CLEARMOTION, INC.

    Inventor： BELTER, Joseph Thomas ,  SELDEN, Brian Alexander ,  SIROIS, Jason Steven ,  VAN STAALDUINEN, Mathijs ,  TUCKER, Clive

    IPC: F16F9/512

    Abstract: Active suspension actuator systems including an actuator with a compression volume and an extension volume are described. In some embodiments, the system includes one or more flow control devices in fluid communication with the compression volume and/or the extension volume of the actuator. In some instances, a flow control device may include a pressure balanced blow-off valve (PBOV). In some embodiments, the system includes a high capacity bidirectional base valve. In some embodiments, two or more flow control devices cooperate to, for example, damp low amplitude oscillations in the extension and/or compression volumes, and to allow the build-up of pump generated differential pressures while discharging rapid road induced differential pressure spikes between the extension and compression volumes.

    PILOT OPERATED BLOW-OFF VALVES FOR HYDRAULIC ACTUATORS
    9.
    发明申请
    PILOT OPERATED BLOW-OFF VALVES FOR HYDRAULIC ACTUATORS 审中-公开

    公开(公告)号：WO2018222821A1

    公开(公告)日：2018-12-06

    申请号：PCT/US2018/035314

    申请日：2018-05-31

    Applicant: CLEARMOTION, INC.

    Inventor： TUCKER, Clive ,  BELTER, Joseph, Thomas

    IPC: B60G11/00 ,  B60G11/26 ,  B60G13/00 ,  B60G13/14 ,  B60G17/00 ,  B60G17/04 ,  B60G17/08 ,  F15B15/00 ,  F15B15/14 ,  F16K31/12

    Abstract: Disclosed herein are various embodiments of a hydraulic actuator that includes one or more check valves having a dynamically varying cracking pressure. In certain embodiments, a hydraulic actuator may be configured to vary the cracking pressure of a check valve based on an operating condition of a pump of the hydraulic actuator. The check valve may be located along a bypass path in the hydraulic actuator, thereby allowing for fluid flow to bypass a pump of the hydraulic actuator by passing through the check valve. The use of such hydraulic actuators is contemplated in, for example, an active suspension system of a vehicle. Additionally, various embodiments of suitable check valves are disclosed. Additionally, methods are disclosed for operation of the check valve and the hydraulic actuator.

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