公开(公告)号：US20160047491A1

公开(公告)日：2016-02-18

申请号：US14743078

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 ,  F16K11/065

CPC classification number: F16K99/0028 ,  F16K99/0011 ,  F16K99/0059

Abstract: A microvalve includes a first plate having an inner surface, a recessed region provided within the inner surface, a normally open fluid port and a normally closed fluid port provided within the recessed region. A first sealing structure extends about the normally open fluid port, and a second sealing structure extends about the normally closed fluid port. A second plate defines a non-movable portion and a movable portion. A surface of the non-movable portion abuts the inner surface of the first plate, the non-movable portion having an opening formed therethrough. The movable portion is formed within the opening, has an axis, and defines a displaceable member connected to the non-movable portion by a convoluted spring formed in the opening. The displaceable member is slidingly and axially movable within the opening between a first position, wherein the displaceable member cooperates with the second sealing structure to prevent fluid communication through the normally closed fluid port, and a second position, wherein the displaceable member does not cooperate with at least a portion of the second sealing structure to prevent fluid communication through the normally closed fluid port.

Abstract translation: 微型阀包括具有内表面的第一板，设置在内表面内的凹入区域，设置在凹陷区域内的常开流体端口和常闭流体端口。 第一密封结构围绕常开流体端口延伸，并且第二密封结构围绕常闭流体端口延伸。 第二板限定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内表面，不可移动部分具有通过其形成的开口。 可动部分形成在开口内，具有轴线，并且限定了通过形成在开口中的回旋弹簧连接到不可移动部分的可移动部件。 所述可移动构件在所述开口内在第一位置之间滑动和轴向地可移动，其中所述可移位构件与所述第二密封结构协作以防止流体连通通过所述常闭流体端口和第二位置，其中所述可移位构件不与 所述第二密封结构的至少一部分，以防止流体通过常闭流体端口连通。

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。

公开(公告)号：US11353140B2

公开(公告)日：2022-06-07

申请号：US16775402

申请日：2020-01-29

Applicant: DunAn Microstaq, Inc.

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

IPC: F16K99/00

Abstract: A microvalve includes a first plate having a surface defining an actuator cavity. A second plate has a surface that abuts the surface of the first plate and includes a displaceable member that is disposed within the actuator cavity for movement between a closed position, wherein the displaceable member prevents fluid communication through the microvalve, and an opened position, wherein the displaceable member does not prevent fluid communication through the microvalve. An actuator is connected to the displaceable member. The displaceable member includes a sealing portion having a plurality of elongated control arms extending inwardly from one end thereof, wherein the control arms are configured as a valve closing members for each of a plurality of fluid flow openings in the first plate.

公开(公告)号：US20200240547A1

公开(公告)日：2020-07-30

申请号：US16775402

申请日：2020-01-29

Applicant: DunAn Microstaq, Inc.

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

IPC: F16K99/00

Abstract: A microvalve includes a first plate having a surface defining an actuator cavity. A second plate has a surface that abuts the surface of the first plate and includes a displaceable member that is disposed within the actuator cavity for movement between a closed position, wherein the displaceable member prevents fluid communication through the microvalve, and an opened position, wherein the displaceable member does not prevent fluid communication through the microvalve. An actuator is connected to the displaceable member. The displaceable member includes a sealing portion having a plurality of elongated control arms extending inwardly from one end thereof, wherein the control arms are configured as a valve closing members for each of a plurality of fluid flow openings in the first plate.

公开(公告)号：US10563896B2

公开(公告)日：2020-02-18

申请号：US16244440

申请日：2019-01-10

Applicant: DunAn Microstaq, Inc.

Inventor： Buu C. Chung ,  Wayne C. Long ,  Arvind Rao ,  Chen Yang ,  Joseph Nguyen ,  Joe A. Ojeda, Sr. ,  Colin B. Bingle

IPC: F25B49/02 ,  G01L27/00 ,  F25B41/06

Abstract: A manifold assembly is configured to calibrate and test one or more superheat controllers and includes a manifold frame, a manifold having a plurality of fluid conduits mounted to the manifold frame, and a plurality of superheat controller fittings mounted to the fluid conduits, each superheat controller fitting configured to have a superheat controller attached thereto.

公开(公告)号：US10234409B2

公开(公告)日：2019-03-19

申请号：US15265798

申请日：2016-09-14

Applicant: DunAn Microstaq, Inc.

Inventor： Arvind Rao ,  Chen Yang ,  Jennifer O'Keefe ,  Buu Chung

IPC: F25B49/02 ,  G01N25/00 ,  G01M99/00

Abstract: A test equipment arrangement includes a superheat controller configured for connection to a unit under test, and further configured to test at least one operational parameter of the unit under test.

公开(公告)号：US20190078819A1

公开(公告)日：2019-03-14

申请号：US16184620

申请日：2018-11-08

Applicant: DunAn Microstaq, Inc.

Inventor： E. Nelson Fuller ,  Parthiban Arunasalam ,  Joe A. Ojeda ,  Gengxun K. Gurley ,  Chen Yang ,  Jennifer O'Keefe

IPC: F25B41/06

CPC classification number: F25B41/062 ,  F25B2341/06 ,  F25B2600/2513

Abstract: A spool assembly configured for use in a two-stage proportional control valve in a fluid system includes a substantially cylindrical sleeve having an axially extending sleeve bore extending from an open first end to an open second end. A spool includes a spool bore that extends from an open first axial end to a closed second axial end and is slidably mounted within the sleeve bore. The spool further includes a first circumferentially extending groove defining a fluid flow path, a second circumferentially extending groove formed near a first end thereof, a third circumferentially extending groove formed near the second axial end thereof, a circumferentially extending pressure groove formed therein between the second axial end and the third circumferentially extending groove, and first, second, and third transverse fluid passageways formed through a side wall of the spool.

公开(公告)号：US10190702B2

公开(公告)日：2019-01-29

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 ,  F16K31/02 ,  F16K31/08

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.

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.

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.