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公开(公告)号：US12055960B2
公开(公告)日：2024-08-06
申请号：US17702563
申请日：2022-03-23
发明人： Biao Fang , David Justin Brady , John C. Glessner , Brandon W. Miller , Stephanie Glynn Cotten , William Dwight Gerstler , Daniel A. Niergarth , Michael Joseph Murray
CPC分类号： G05D7/0635 , F16K11/0712 , F16K31/406 , G05D7/005 , G05D11/003 , F16K11/065 , Y10T137/86598
摘要： Example split valves for regulating a first flowrate and a second flowrate of a fluid within a closed loop systems are disclosed herein. An example split valve includes an electrohydraulic servo valve coupled to a first piston via a first hydraulic flowline and a second hydraulic flowline, the first piston to include a piston shaft, a first head, and a second head; one or more bellows fixed to at least one of the first head or the second head, the one or more bellows to hermetically seal the fluid from a hydraulic fluid; and a control system connected to the electrohydraulic servo valve, the control system to adjust the first flowrate and the second flowrate of the fluid through a first fluid chamber, the first piston to be located in the first fluid chamber.
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公开(公告)号：US12001229B1
公开(公告)日：2024-06-04
申请号：US18514093
申请日：2023-11-20
CPC分类号： G05D7/005 , B66B1/28 , B66B1/3423 , B66B1/3453 , B66B1/3469 , B66B1/3492 , B66B9/04 , F16K3/0209
摘要： A pressure regulator includes a fluid transfer chamber defining one or more apertures. A flow control element is disposed within the fluid transfer chamber and is movable with respect to the fluid transfer chamber. An actuator is secured to the flow control element and is operable to move the flow control element with respect to the fluid transfer chamber to control fluid flow through the apertures in the fluid transfer chamber.
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公开(公告)号：US11890629B2
公开(公告)日：2024-02-06
申请号：US17176974
申请日：2021-02-16
申请人： Reinhold Schulte
发明人： Reinhold Schulte
CPC分类号： B05B12/087 , B05B1/20 , B05B12/004 , B05B12/02 , F16K17/048 , F16K31/06 , F16K31/0655 , G05D7/005
摘要： The invention relates to an agricultural sprayer valve unit. An electronically controlled control valve and a passive overflow valve serially connected in fluid communication are arranged in the agricultural sprayer valve unit between a primary line and a secondary line. The agricultural sprayer valve unit may be used for any agricultural sprayer valve device, in particular in connection with the discharge of a fluid such as water, a fertilizer, an insecticide, a weedkiller and the like in agricultural or fruit or vegetable cultivation.
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公开(公告)号：US11822357B2
公开(公告)日：2023-11-21
申请号：US17436360
申请日：2020-03-12
发明人： Sebastian Hurst
IPC分类号： F16K31/40 , G05D7/00 , F16K31/06 , F16K31/363
CPC分类号： G05D7/005 , F16K31/0655 , F16K31/363 , F16K31/406
摘要： A pilot-controlled coolant valve is provided that includes a pressure chamber, a pressure release chamber, a control opening, a pressure release channel, an actuator having a plunger, a control piston stroke-actuated by the plunger, a closing piston moving in the pressure chamber, and a valve seat. The pressure chamber has an in-flow and an out-flow for coolant. The control opening connects the pressure release chamber to the pressure chamber. The control piston closes the control opening during the stroke actuation by the plunger, except for a radial sealing gap between the control piston and the control opening. When the control opening is closed, the closing piston sealingly rests on the valve seat and interrupts the connection of the through-flow chamber with the in-flow. Axial end sides of the closing piston delimit a stagnation pressure chamber on one side and a through-flow chamber on the other side.
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公开(公告)号：US20190120263A1
公开(公告)日：2019-04-25
申请号：US15793315
申请日：2017-10-25
申请人： Dresser LLC
发明人： Jonathan Fredric Cohen , Jagdish Gattu , Lei Lu , Anatoly Podpaly , Harold Randall Smart , Paul Talmage Tirrell
CPC分类号： F15B15/202 , F15B5/006 , F15B13/0882 , F15B20/00 , F15B21/085 , F15B2211/6336 , F15B2211/6346 , F15B2211/6656 , F15B2211/8616 , F15B2211/8855 , F16K15/148 , F16K31/046 , F16K47/04 , G01D11/24 , G05B2219/45006 , G05D7/005
摘要： A controller for a valve assembly that is configured to meet requirements for use in hazardous areas. These configurations may regulate flow of instrument air to a pneumatic actuator to operate a valve. The controller may comprise enclosures, including a first enclosure and a second enclosure, each having a peripheral wall forming an interior space, and circuitry comprising a barrier circuit disposed in the interior space of one of the enclosures that power limits digital signals that exits that enclosure. In one example, the peripheral wall of enclosures are configured to allow instrument air into the interior space of the first enclosure but to prevent instrument air from the interior space of the second enclosure.
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公开(公告)号：US20170364097A1
公开(公告)日：2017-12-21
申请号：US15625977
申请日：2017-06-16
申请人： Moog Inc
发明人： Gregory B. Weber
CPC分类号： G05D7/0623 , F15B13/043 , F15B13/0438 , F15B13/086 , F15B19/002 , F15B19/005 , F15B21/087 , F15B2013/0409 , F15B2211/615 , F15B2211/6306 , F15B2211/6309 , F15B2211/6316 , F15B2211/634 , F15B2211/6343 , F15B2211/6654 , F15B2211/6656 , F15B2211/8609 , F16K11/07 , F16K31/002 , F16K31/02 , F16K37/0041 , F16K37/005 , G05D3/12 , G05D7/005
摘要： A servovalve system comprising a pilot stage valve in communication with an hydraulic stage valve, the hydraulic stage valve comprising a valve member movably mounted in a valve chamber to selectively meter fluid flow in a flow path from an upstream inlet port to a downstream outlet port and at least two variable-sized orifices disposed in the flow path between the inlet and outlet ports, an upstream pressure sensor, a downstream pressure sensor, a fluid temperature sensor, a position sensor sensing a linear position of the valve member, a controller that receives input from the upstream pressure sensor, the downstream pressure sensor, the fluid temperature sensor and the position sensor; and the controller configured to provide a control signal to the pilot stage valve as a function of the input from the upstream pressure sensor, the downstream pressure sensor, the fluid temperature sensor and the position sensor.
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公开(公告)号：US09841111B2
公开(公告)日：2017-12-12
申请号：US15109663
申请日：2014-12-03
申请人： KYB Corporation
发明人： Toru Takeuchi
CPC分类号： F16K3/267 , F15B13/0433 , F16K1/54 , F16K3/34 , F16K31/408 , F16K47/04 , G05D7/005
摘要： A solenoid valve includes a main poppet configured to control a flow rate of working fluid flowing in a valve passage according to a pilot pressure, an auxiliary poppet configured to adjust the pilot pressure according to the electromagnetic force, and a first seat portion and a second seat portion provided in the valve passage. The main poppet includes a poppet valve seated on the first seat portion and a spool valve slidable in the second seat portion. The spool valve includes an outer peripheral surface slidable relative to the second seat portion and through holes open on the outer surface and configured such that areas thereof exposed from the second seat portion change in accordance with a movement of the spool valve.
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公开(公告)号：US20170284604A1
公开(公告)日：2017-10-05
申请号：US15630052
申请日：2017-06-22
发明人： Dean KOULOGIANES
CPC分类号： F17D1/04 , F17D3/01 , G05D7/005 , Y10T137/2705 , Y10T137/7795 , Y10T137/87322
摘要： Current natural gas measurement and regulation systems are sensitive to loss of electrical power, which can cause brownouts and curtailment of power in the local area if power systems reliant on natural gas are downstream from the station. A system for regulating the flow of natural gas and for guaranteeing the flow of natural gas from a source to at least one specific flow line even when the system is not provided with electrical power may be described. Such a system may include at least one of each of: a low-pressure regulation system, a high-pressure regulation system, an inlet gas filter, a relief valve, a low select relay, a differential pressure pneumatic relay, a reset relay, a 5-way universal relay, an electromechanically operated valve, a first manual multi-way valve, a second manual multi-way valve, a high calibration valve, a low calibration valve, a filter, and/or a differential pressure measurement system.
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公开(公告)号：US20160109886A1
公开(公告)日：2016-04-21
申请号：US14977162
申请日：2015-12-21
发明人： Tadahiro Ohmi , Masahito Saito , Shoichi Hino , Tsuyoshi Shimazu , Kazuyuki Miura , Kouji Nishino , Masaaki Nagase , Katsuyuki Sugita , Kaoru Hirata , Ryousuke Dohi , Takashi Hirose , Tsutomu Shinohara , Nobukazu Ikeda , Tomokazu Imai , Toshihide Yoshida , Hisashi Tanaka
CPC分类号： G01F1/6847 , G01F1/363 , G01F1/40 , G01F5/005 , G01F7/005 , G05D7/005 , G05D7/0641 , Y10T137/0379 , Y10T137/7759 , Y10T137/776 , Y10T137/7761 , Y10T137/8593 , Y10T137/86734 , Y10T137/86815 , Y10T137/87265 , Y10T137/87298 , Y10T137/87306 , Y10T137/87314 , Y10T137/87354 , Y10T137/8741 , Y10T137/87499 , Y10T137/87539 , Y10T137/87684
摘要： A pressure type flow rate control apparatus is provided wherein flow rate of fluid passing through an orifice is computed as Qc=KP1 (where K is a proportionality constant) or as Qc=KP2m(P1−P2)n (where K is a proportionality constant, m and n constants) by using orifice upstream side pressure P1 and/or orifice downstream side pressure P2. A fluid passage between the downstream side of a control valve and a fluid supply pipe of the pressure type flow rate control apparatus comprises at least 2 fluid passages in parallel, and orifices having different flow rate characteristics are provided for each of these fluid passages, wherein fluid in a small flow quantity area flows to one orifice for flow control of fluid in the small flow quantity area, while fluid in a large flow quantity area flows to the other orifice for flow control of fluid in the large flow quantity area.
摘要翻译： 提供一种压力式流量控制装置，其中通过孔口的流体流量计算为Qc = KP1（其中K是比例常数）或Qc = KP2m（P1-P2）n（其中K是比例常数 ，m和n常数）通过使用孔口上游侧压力P1和/或孔口下游侧压力P2。 控制阀的下游侧和压力式流量控制装置的流体供给管之间的流体通道平行地包括至少2个流体通道，并且为每个这些流体通道设置具有不同流量特性的孔，其中 小流量区域中的流体流向一个孔，用于在小流量区域中的流体的流量控制，而大流量区域中的流体流向另一个孔口，用于大流量区域中的流体的流量控制。
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公开(公告)号：US20140130881A1
公开(公告)日：2014-05-15
申请号：US13677142
申请日：2012-11-14
申请人： Mindray DS USA, Inc.
发明人： Richard G. Cipolli , Geoffrey C. Jawidzik , Luo Jiancheng , Li An , Hu Min
IPC分类号： G05D7/00
CPC分类号： G05D7/005 , A61M16/01 , A61M16/024 , A61M16/104 , A61M16/12 , A61M16/18 , A61M16/20 , A61M16/202 , A61M16/203 , A61M2016/0027 , A61M2016/0033 , A61M2202/0208 , A61M2202/0283 , A61M2205/16 , A61M2205/505 , A61M2205/8206 , A61M2209/084 , F16K31/60 , F17C1/00 , G05D7/0658 , G06F3/04847 , G06F3/04886 , Y10T137/0368 , Y10T137/87917
摘要： In various embodiments, an electronic flow selector of a fluid flow control system may be used to select a flow rate of a fluid. When the system is in an electronic mode, an encoder may electronically encode the fluid flow selection. A controller may receive the electronically encoded flow selection and transmit a corresponding control signal to an electronic valve to allow the fluid to flow at the selected flow rate. When the system is in a manual mode, mechanical backup flow selectors may be used to directly control the flow rate of a fluid. When the system is in a manual mode, the mechanical backup flow selectors may be in a deployed position. When the system is in an electronic mode, the mechanical backup flow selectors may be in a retracted position. Particular applications to gases and anesthesia delivery are disclosed herein.
摘要翻译： 在各种实施例中，可以使用流体流量控制系统的电子流量选择器来选择流体的流量。 当系统处于电子模式时，编码器可以电流编码流体流动选择。 控制器可以接收电子编码的流选择并将相应的控制信号发送到电子阀，以允许流体以选定的流速流动。 当系统处于手动模式时，机械备用流量选择器可用于直接控制流体的流量。 当系统处于手动模式时，机械备用流量选择器可能处于部署位置。 当系统处于电子模式时，机械备用流量选择器可处于缩回位置。 本文公开了气体和麻醉输送的特定应用。
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