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    Low leak pilot operated spool valve
    23.
    发明授权
    Low leak pilot operated spool valve 有权

    公开(公告)号：US09909671B2

    公开(公告)日：2018-03-06

    申请号：US15191567

    申请日：2016-06-24

    Applicant: DunAn Microstaq, Inc.

    Inventor： E. Nelson Fuller ,  Gengxun K. Gurley

    IPC: F16K1/46 ,  F16K99/00 ,  F16K31/124

    CPC classification number: F16K1/46 ,  F16K31/124 ,  F16K99/0001 ,  F16K2099/009

    Abstract: A hybrid spool valve includes a body having a longitudinal bore. The bore has a fluid inlet chamber in fluid communication with a fluid inlet port and a fluid outlet chamber in fluid communication with a fluid outlet port. A spool is slidably mounted in the bore and is movable between a fully open position, a fully closed position, and a plurality of partially open positions. A pilot microvalve is mounted within the bore and is configured to control the sliding movement of the spool by varying the flow of fluid therethrough. A seal is disposed in a groove formed in an outside surface of the spool such that when the spool is in the fully closed position the seal engages a wall of the bore, and when the spool is the fully open position or one of the partially open positions the seal does not engage the bore.

    Low Leak Pilot Operated Spool Valve
    24.
    发明申请
    Low Leak Pilot Operated Spool Valve 有权
    低泄漏先导式阀芯阀

    公开(公告)号：US20170002932A1

    公开(公告)日：2017-01-05

    申请号：US15191567

    申请日：2016-06-24

    Applicant: DunAn Microstaq, Inc.

    Inventor： E. Nelson Fuller ,  Gengxun K. Gurley

    IPC: F16K1/46 ,  F16K1/52 ,  F16K99/00 ,  F16K1/12

    CPC classification number: F16K1/46 ,  F16K31/124 ,  F16K99/0001 ,  F16K2099/009

    Abstract: A hybrid spool valve includes a body having a longitudinal bore. The bore has a fluid inlet chamber in fluid communication with a fluid inlet port and a fluid outlet chamber in fluid communication with a fluid outlet port. A spool is slidably mounted in the bore and is movable between a fully open position, a fully closed position, and a plurality of partially open positions. A pilot microvalve is mounted within the bore and is configured to control the sliding movement of the spool by varying the flow of fluid therethrough. A seal is disposed in a groove formed in an outside surface of the spool such that when the spool is in the fully closed position the seal engages a wall of the bore, and when the spool is the fully open position or one of the partially open positions the seal does not engage the bore.

    Abstract translation: 复合滑阀包括具有纵向孔的本体。 孔具有与流体入口端口和与流体出口端口流体连通的流体出口室流体连通的流体入口室。 阀芯可滑动地安装在孔中并且可在完全打开位置，完全关闭位置和多个部分打开位置之间移动。 引导微阀安装在孔内，并且构造成通过改变流体的流动来控制阀芯的滑动运动。 密封件设置在形成在阀芯的外表面中的凹槽中，使得当阀芯处于完全关闭位置时，密封件接合孔的壁，并且当阀芯是完全打开位置或部分打开 位置密封不接合孔。

    Bi-Stable Two-Port Valve
    26.
    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
    27.
    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
    28.
    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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