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    SYSTEMS AND METHODS FOR MANAGING NOISE IN COMPACT HIGH SPEED AND HIGH FORCE HYDRAULIC ACTUATORS
    1.
    发明申请
    SYSTEMS AND METHODS FOR MANAGING NOISE IN COMPACT HIGH SPEED AND HIGH FORCE HYDRAULIC ACTUATORS 审中-公开
    用于管理紧凑高速和高压力液压执行机构中的噪声的系统和方法

    公开(公告)号：WO2017210492A1

    公开(公告)日：2017-12-07

    申请号：PCT/US2017/035558

    申请日：2017-06-01

    Applicant: CLEARMOTION, INC.

    Inventor： WOODARD, Nathan ,  O'SHEA, Colin, Patrick ,  INIRIO, Hector, Arnaldo

    IPC: F16L55/033 ,  F04B11/00 ,  F15B21/00 ,  F15B21/04 ,  F16L55/04

    Abstract: Presented herein are systems and methods for attenuating certain pulsations in a hydraulic system comprising a pump and a hydraulic actuator. In certain aspects, an accumulator comprising an internal volume that is divided into a working chamber and a contained chamber may be utilized to at least partially attenuate propagation of certain pulsations in the system. The working chamber may be fluidically coupled to the pump via a first flow path and fluidically coupled to a chamber of the actuator via a second flow path. The system may be designed such that a first inertance of the first flow path is greater than a second inertance of the second flow path. Additionally or alternatively, the system may be designed such that a resonance associated with the first inertance and a compliance of the accumulator may occur at a resonance frequency of less than 90Hz.

    Abstract translation: 这里呈现的是用于衰减包括泵和液压致动器的液压系统中的某些脉动的系统和方法。 在某些方面，包括被分成工作室和容纳室的内部容积的蓄积器可被用于至少部分衰减系统中的某些脉动的传播。 工作腔室可以经由第一流动路径流体地联接到泵并且经由第二流动路径流体联接到致动器的腔室。 该系统可以被设计成使得第一流动路径的第一惯性大于第二流动路径的第二惯性。 另外地或替代地，系统可以被设计为使得与第一惯性相关联的谐振和累加器的顺应性可以在小于90Hz的谐振频率下发生。

    ACTIVE HYDRAULEC RIPPLE CANCELLATION METHODS AND SYSTEMS
    5.
    发明申请
    ACTIVE HYDRAULEC RIPPLE CANCELLATION METHODS AND SYSTEMS 审中-公开
    主动液压波纹消除方法和系统

    公开(公告)号：WO2017184651A1

    公开(公告)日：2017-10-26

    申请号：PCT/US2017/028203

    申请日：2017-04-18

    Applicant: CLEARMOTION, INC.

    Inventor： O'SHEA, Colin, Patrick ,  TUCKER, Clive ,  SELDEN, Brian, Alexander

    IPC: F15B13/044

    Abstract: Presented herein are systems and methods for attenuating flow ripple generated by a hydraulic pump. In certain aspects, a method and system for operating a hydraulic positive displacement pump according to a stabilized command profile are disclosed, such that flow ripple generated by operation of the pump according to the stabilized command profile is attenuated as compared to operation of the pump according to a corresponding nominal command profile. In other aspects, a pressure-balanced active buffer is disclosed that allow for at least partially cancelling flow ripple in a hydraulic circuit comprising a pump. In another aspect, a method for generating ripple maps for a pump is disclosed. Such ripple maps may be used, for example, to determine the stabilized command profile used to operate the pump, or may be used by the pressure-balanced active buffer to counteract ripple in the hydraulic circuit.

    Abstract translation: 这里呈现的是用于衰减由液压泵产生的流动波纹的系统和方法。 在某些方面中，公开了一种用于根据稳定的命令曲线操作液压容积泵的方法和系统，使得根据稳定的命令曲线由泵的操作产生的流动波动与根据稳定命令曲线的泵的操作相比被衰减 到相应的标称命令配置文件。 在其他方面，公开了一种压力平衡的主动缓冲器，其允许至少部分地消除包括泵的液压回路中的流动波纹。 另一方面，公开了一种用于生成泵的波纹图的方法。 例如，可以使用这种波纹图来确定用于操作泵的稳定的指令曲线，或者可以由压力平衡的有源缓冲器使用以抵消液压回路中的波纹。

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