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    ON-OFF MICROVALVE WITH IMPROVED SEALING MECHANISM
    51.
    发明申请
    ON-OFF MICROVALVE WITH IMPROVED SEALING MECHANISM 有权
    具有改进的密封机构的开关微型

    公开(公告)号：US20160047490A1

    公开(公告)日：2016-02-18

    申请号：US14743095

    申请日：2015-06-18

    Applicant: DunAn Microstaq, Inc.

    Inventor： Edward Nelson Fuller ,  Parthiban Arunasalam ,  Chen Yang ,  Joe A. Ojeda, SR. ,  Gengxun K. Gurley

    IPC: F16K99/00

    CPC classification number: F16K99/0011 ,  B01L3/5027 ,  B81B1/00 ,  Y10T137/2224

    Abstract: A microvalve includes a first plate having a surface, a recessed region provided within the surface, a fluid port provided within the recessed region, and a sealing structure extending about the fluid port. A second plate defines a non-movable portion and a movable portion formed within the first opening and having an axis. A surface of the non-movable portion abuts the surface of the first plate, the non-movable portion having first and second openings formed therethrough. The first opening has a notch formed in each of two longitudinally extending side walls thereof. The movable portion defines a displaceable member connected to the non-movable portion by a convoluted spring formed in a second opening. The displaceable member has a tab extending outwardly from each of two longitudinally extending side walls thereof, each tab positioned within one of the notches. The displaceable member is slidingly and axially movable within the first opening between a closed position, wherein the displaceable member cooperates with the sealing structure to prevent fluid communication through the fluid port, and an opened position, wherein the displaceable member does not cooperate with at least a portion of the sealing structure to prevent fluid communication through the fluid port. The notches define stop surfaces that limit travel of the displaceable member between the closed position and the open position.

    Abstract translation: 微型阀包括具有表面的第一板，设置在表面内的凹入区域，设置在凹陷区域内的流体端口以及围绕流体端口延伸的密封结构。 第二板限定形成在第一开口内并具有轴线的不可移动部分和可移动部分。 不可移动部分的表面邻接第一板的表面，不可移动部分具有通过其形成的第一和第二开口。 第一开口具有形成在其两个纵向延伸侧壁中的每一个中的凹口。 可移动部分限定通过形成在第二开口中的回旋弹簧连接到不可移动部分的可移动部件。 可移动构件具有从其两个纵向延伸的侧壁中的每一个向外延伸的突出部，每个突片位于一个凹口内。 可移动构件在第一开口内在关闭位置之间滑动并可轴向移动，其中可移动构件与密封结构配合以防止流体连通通过流体端口和打开位置，其中可移位构件至少与至少配合 密封结构的一部分以防止流体通过流体端口连通。 凹口限定限制可移动构件在关闭位置和打开位置之间行进的止挡面。

    METHOD OF CONTROLLING A MICRO-ELECTRO-MECHANICAL SYSTEM (MEMS) VALVE
    52.
    发明申请
    METHOD OF CONTROLLING A MICRO-ELECTRO-MECHANICAL SYSTEM (MEMS) VALVE 审中-公开
    控制微机电系统（MEMS）阀的方法

    公开(公告)号：US20150316167A1

    公开(公告)日：2015-11-05

    申请号：US14268526

    申请日：2014-05-02

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC ,  Microstaq Inc.

    Inventor： Dongxu Li ,  Chunhao J. Lee ,  Bret M. Olson ,  Xingyong Song ,  Farzad Samie ,  Edward N. Fuller

    IPC: F16K31/02

    CPC classification number: F16K99/0044 ,  F16K99/0007

    Abstract: A method of controlling a Micro-Electro-Mechanical System (MEMS) valve includes defining a desired pressure output for the MEMS valve. The desired pressure output is related to a control reference value. The control reference value relates an output pressure of the MEMS valve to a measurable characteristic of the MEMS valve. The measurable characteristic may include a resistance, an electrical power, or an electrical current of the MEMS valve. The control reference value is converted to an initial Pulse Width Modulated (PWM) signal that is applied to the MEMS valve. The initial PWM signal may be adjusted to define an adjusted PWM signal based upon a difference between an actual value of the measurable characteristic at the initial PWM signal and the control reference value, until the actual value of the measurable characteristic at the adjusted PWM signal is within a pre-defined range of the control reference value.

    Abstract translation: 控制微机电系统（MEMS）阀的方法包括限定用于MEMS阀的期望的压力输出。 所需的压力输出与控制参考值有关。 控制参考值将MEMS阀的输出压力与MEMS阀的可测量特性相关联。 可测量的特性可以包括MEMS阀的电阻，电功率或电流。 控制参考值被转换为施加到MEMS阀的初始脉宽调制（PWM）信号。 可以基于初始PWM信号的可测量特性的实际值与控制参考值之间的差异来调整初始PWM信号以定义调整的PWM信号，直到调节后的PWM信号的可测量特性的实际值为 在控制参考值的预定义范围内。

    Bi-Stable Two-Port Valve
    56.
    发明申请
    Bi-Stable Two-Port Valve 审中-公开

    公开(公告)号：US20190257439A1

    公开(公告)日：2019-08-22

    申请号：US16236913

    申请日：2018-12-31

    Applicant: DunAn Microstaq, Inc.

    Inventor： E. Nelson Fuller ,  Parthiban Arunasalam ,  Kevin C. Sinkar ,  Dhaman K. Besarla ,  Gengxun K. Gurley ,  Joe A. Ojeda ,  Chen Yang

    IPC: F16K31/08 ,  F16K31/06

    Abstract: An electronically switchable, bi-stable two-port valve includes a sleeve, a first pole piece having air flow passages formed therethrough and a first wire-wound coil mounted therein and connected to a source of electrical power, a second pole piece having air flow passages formed therethrough and a second wire-wound coil mounted therein and connected to the source of electrical power, and a permanent magnet defining an armature and movably mounted between the first and second pole pieces. The first pole piece is mounted in a first end of the sleeve and the second pole piece is mounted in a second end of the sleeve.

    Microvalve having contamination resistant features
    58.
    发明授权
    Microvalve having contamination resistant features 有权

    公开(公告)号：US10094490B2

    公开(公告)日：2018-10-09

    申请号：US15175766

    申请日：2016-06-07

    Applicant: DunAn Microstaq, Inc.

    Inventor： Parthiban Arunasalam ,  E. Nelson Fuller ,  Chen Yang ,  Joe A. Ojeda, Sr.

    IPC: F16K99/00

    Abstract: A microvalve includes a first plate having a surface, a recessed area provided within the surface, a fluid port provided within the recessed area, and a sealing structure extending about the fluid port, the sealing structure having at least one divot formed therein. A second plate has a surface adjacent the surface of the first plate and including a displaceable member that is movable between a closed position, wherein the displaceable member cooperates with the sealing structure to prevent fluid communication through the fluid port, and an open position, wherein the displaceable member does not cooperate with at least a portion of the sealing structure to prevent fluid communication through the fluid port.

    MEMS BASED SOLENOID VALVE
    60.
    发明申请
    MEMS BASED SOLENOID VALVE 审中-公开

    公开(公告)号：US20170268698A1

    公开(公告)日：2017-09-21

    申请号：US15451615

    申请日：2017-03-07

    Applicant: DunAn Microstaq, Inc.

    Inventor： E. Nelson Fuller ,  Parthiban Arunasalam ,  Joe A. Ojeda ,  Chen Yang

    IPC: F16K99/00

    CPC classification number: F16K99/0046 ,  F16K31/02 ,  F16K31/08 ,  F16K31/082 ,  F16K99/0009

    Abstract: The electronically switchable MEMS valve includes a housing formed from soft magnetic material and defining a fluid flow path therethrough. A magnetic field generating member is mounted within the housing and connected to a source of electrical power. A MEMS valve portion is mounted within the magnetic field generating member, has a valve closing member movably mounted therein, and defines a portion of the fluid flow path therethrough. The valve closing element is movable between a closed position wherein the fluid flow path is blocked, and an open position wherein the fluid flow path is not blocked. When an electric current is removed from the magnetic field generating member, the valve closing element is configured to move to and remain in the one of the closed position and the open position to which the valve closing element is the closest when the electric current is removed.

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