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31.发明授权公开(公告)号：US10125988B2
公开(公告)日：2018-11-13
申请号：US15297400
申请日：2016-10-19
Applicant: DunAn Microstaq, Inc.
Inventor： E. Nelson Fuller , Parthiban Arunasalam , Joe A. Ojeda, Sr.
Abstract: A two-stage fluid control valve includes a first stage mechanical control 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 mechanical control valve is in the open position.
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32.发明授权公开(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.
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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.
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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.
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
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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
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。
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Patent Agency Ranking
公开(公告)号：US20160069414A1
公开(公告)日：2016-03-10
申请号：US14832521
申请日：2015-08-21
Applicant: DunAn Microstaq, Inc.
Inventor： Colin B. Bingle
Abstract: An adjustable shock absorber includes a housing defining an enclosed working space. A wall is formed in the working space and separates the working space into first and second fluid chambers. A compression valve is formed in the wall and a microvalve is attached to the compression valve and is operable to control fluid flow through the compression valve.
Abstract translation: 可调减震器包括限定封闭工作空间的壳体。 在工作空间中形成一个壁，并将工作空间分离成第一和第二流体室。 在壁中形成有压缩阀，并且微型阀连接到压缩阀，并且可操作地控制流过压缩阀的流体流动。
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公开(公告)号：US10760836B2
公开(公告)日：2020-09-01
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
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.
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公开(公告)号：US10648719B2
公开(公告)日：2020-05-12
申请号：US16163855
申请日：2018-10-18
Applicant: DunAn Microstaq, Inc.
Inventor： Dhaman K. Besarla , Colin B. Bingle , Kevin C. Sinkar , Eric S. Shea
Abstract: A method of controlling fluid flow through a heating, ventilating, air conditioning, and refrigeration (HVAC-R) system includes measuring temperature and pressure at an outlet of an evaporator of the HVAC-R system, wherein the evaporator is in fluid communication with a compressor, a condenser, an expansion device between the evaporator and the condenser, and a flow control valve between the compressor and the condenser, and measuring a sub-cooling temperature at an outlet of the condenser. The measured evaporator temperature and pressure data is sent to a first superheat processor, and the measured sub-cooling temperature data is send to a second superheat processor. A control signal to the expansion device from the first superheat processor and a control signal to the flow control valve from the second superheat processor are then simultaneously sent.
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39.发明授权公开(公告)号：US10544040B2
公开(公告)日：2020-01-28
申请号：US15909431
申请日：2018-03-01
Applicant: DunAn Microstaq, Inc.
Inventor： Wayne C. Long , Joe A. Ojeda , Joseph L. Nguyen
Abstract: A method of attaching a MEMS die to a mounting surface includes coating an inside surface of a pressure port of a fluid inlet member with a layer of solder mask, the fluid inlet member having a first axial end, a second axial end, and a port opening of the pressure port formed in the second axial end of the fluid inlet member. A solder preform is disposed on the mounting surface of the fluid inlet member and a MEMS die is disposed on the solder preform. The solder preform is heated in a re-flow operation to attach the MEMS die to the mounting surface, wherein the solder mask within the pressure port prevents molten solder from entering the pressure port during the re-flow operation.
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公开(公告)号：US10443712B2
公开(公告)日：2019-10-15
申请号：US15797847
申请日：2017-10-30
Applicant: DunAn Microstaq, Inc.
Inventor： E. Nelson Fuller , Parthiban Arunasalam , Wayne C. Long , Arvind P. Rao , Kevin Sinkar , Gengxun K. Gurley
Abstract: A system for controlling fluid pressure to a transmission system through a MEMS microvalve includes a transmission controller configured to receive a target command pressure, a current system command pressure input signal, and a transmission system operating temperature. A power determination module determines a temperature-related power factor from the target command pressure, the current system command pressure input signal, the transmission system operating temperature received in the controller, and a look-up table within the controller. A power signal module adjusts the current system command pressure input signal by the temperature-related power factor and applies the adjusted current system command pressure input signal to the MEMS microvalve via the controller.
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