公开(公告)号：US09970572B2

公开(公告)日：2018-05-15

申请号：US14919953

申请日：2015-10-22

Applicant: DunAn Microstaq, Inc.

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

IPC: F16K31/126 ,  F16K99/00

CPC classification number: F16K99/0059 ,  F16K31/126 ,  F16K99/0042

Abstract: A valve assembly is configured to regulate the flow of an isolated fluid therethrough and includes a first valve stage configured to control the flow of a first fluid through a first fluid circuit, and a second valve stage configured to control the flow of a second fluid through a second fluid circuit. The first valve stage is connected to the second valve stage such that the first fluid acts on the second valve stage to move the second valve stage between open and closed positions. The second fluid flowing through the second valve stage is also isolated from the first fluid flowing through the first valve stage.

公开(公告)号：US09551435B2

公开(公告)日：2017-01-24

申请号：US14704505

申请日：2015-05-05

Applicant: DunAn Microstaq, Inc.

Inventor： Parthiban Arunasalam ,  Arvind Panduranga Rao ,  Dhaman Kumar Besarla ,  Gengxun Kara Gurley

IPC: F16K99/00 ,  F16K11/07 ,  F16K31/02 ,  B08B7/02 ,  B08B17/00

CPC classification number: F16K99/0003 ,  B08B7/02 ,  B08B17/00 ,  F16K11/0716 ,  F16K31/025 ,  F16K99/0044 ,  F16K2099/009 ,  F16K2099/0098 ,  Y10T137/043

Abstract: A method of cleaning contaminants, including particulate contaminants, from a valve in a fluid system includes moving a valve flow control element of the valve from a first position to a second position in response to a change in a condition in the fluid system other than a change in superheat.

Abstract translation: 从流体系统中的阀清除污染物（包括颗粒污染物）的方法包括响应于流体系统中的状态的改变将阀的阀流量控制元件从第一位置移动到第二位置，除了 过热变化

公开(公告)号：US20190338866A1

公开(公告)日：2019-11-07

申请号：US16253382

申请日：2019-01-22

Applicant: DunAn Microstaq, Inc.

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

IPC: F16K99/00 ,  F16K31/08

Abstract: A two-stage fluid control valve includes a first stage electronically switchable, bi-stable two-port valve movable between an open position and a leak-free closed position, and a second stage microvalve configured to control the flow of fluid through a fluid outlet of the two-stage fluid control valve when the first stage electronically switchable, bi-stable two-port valve is in the open position. The electronically switchable, bi-stable two-port valve is disposed between the second stage microvalve and a fluid inlet of the two-stage fluid control valve.

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.

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.

公开(公告)号：US20170234456A1

公开(公告)日：2017-08-17

申请号：US15417267

申请日：2017-01-27

Applicant: DunAn Microstaq, Inc.

Inventor： E. Nelson Fuller ,  Parthiban Arunasalam ,  Joe A. Ojeda ,  Huazhao Liu

IPC: F16K99/00 ,  F28D1/053 ,  B23P15/26

CPC classification number: F16K99/0011 ,  B23P15/26 ,  F16K11/0716 ,  F16K27/04 ,  F16K31/124 ,  F16K99/0042 ,  F16K2099/0098 ,  F25B39/02 ,  F25B41/04 ,  F28D1/053 ,  F28D1/05383 ,  F28F21/084 ,  F28F27/02 ,  F28F2275/04

Abstract: A microchannel heat exchanger is configured for use as an evaporator in a fluid cooling system and includes an inlet header, an outlet header, and a plurality of microchannel tubes extending between and in fluid communication with the inlet header and the outlet header. A microvalve actuated hybrid spool valve is attached to and in fluid communication with the inlet header.

公开(公告)号：US20170219259A1

公开(公告)日：2017-08-03

申请号：US15399792

申请日：2017-01-06

Applicant: DunAn Microstaq, Inc.

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

IPC: F25B41/06 ,  F16K27/04 ,  F16K31/124

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

Abstract: A two-stage proportional control valve configured for use in a fluid system includes a valve body having a longitudinally extending valve body bore formed therethrough. A first stage microvalve is mounted within the valve body bore, and a second stage spool assembly is mounted within the valve body bore downstream of the microvalve. The second stage spool assembly includes a sleeve and a spool slidably mounted within the sleeve.

公开(公告)号：US20160369916A1

公开(公告)日：2016-12-22

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

CPC classification number: F16K99/0005 ,  F16K99/0044

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.

Abstract translation: 微型阀包括具有表面的第一板，设置在表面内的凹陷区域，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，所述密封结构具有形成在其中的至少一个凹部。 第二板具有邻近第一板的表面的表面，并且包括位移构件，其可在关闭位置之间移动，其中可移位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 可移动构件不与密封结构的至少一部分配合，以防止流体通过流体端口连通。

公开(公告)号：US09494255B2

公开(公告)日：2016-11-15

申请号：US14743088

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 ,  B01L3/00 ,  B81B1/00

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, a surface of the non-movable portion abutting the surface of the first plate, the non-movable portion having first and second openings formed therethrough. The movable portion is formed within the first opening and has an axis, the movable portion defining a displaceable member connected to the non-movable portion by a convoluted spring formed in a second opening. 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.

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，不可移动部分具有穿过其形成的第一和第二开口。 可移动部分形成在第一开口内并且具有轴线，该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。