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1.发明公开公开(公告)号：US20240353871A1
公开(公告)日：2024-10-24
申请号：US18645092
申请日：2024-04-24
CPC分类号： G05D7/0126 , G05D16/107
摘要： A passive, modulating flow control valve including a poppet having a precisely designed and constant unbalanced area. A spring rate is selected to achieve the desired poppet travel over the desired range of differential pressure. Preferably, the spring preload is selected such that the poppet will remain fully open until a specified minimum differential pressure is reached. The unbalanced area and spring force allow the poppet to reposition proportional to the differential pressure throughout the design range of differential pressure. An array of radial holes in the poppet are used to define the trim characteristics. As the poppet is pushed closed by the differential pressure, few radial holes remain uncovered, which increases the flow resistance. The single modulating poppet includes flow and trim characteristics that respond directly to differential pressure acting on it to achieve tight control of the mass flow rate.
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公开(公告)号：US12125635B2
公开(公告)日：2024-10-22
申请号：US17608151
申请日：2019-07-10
发明人： Naoki Iwamoto , Tomonori Tanaka , Tatsuya Inoue
CPC分类号： H01F6/04 , G05D7/0133 , H01F6/06
摘要： A part of a second split-flow pipe is branched into at least a first branch pipe and a second branch pipe. A second spring check valve is disposed in the first branch pipe to open when a pressure difference between an upstream side and a downstream side of the second spring check valve in the first branch pipe becomes more than or equal to a second set pressure higher than a first set pressure. A third spring check valve is disposed in the second branch pipe to open when a pressure difference between an upstream side and a downstream side of the third spring check valve in the second branch pipe becomes more than or equal to a third set pressure higher than the first set pressure. The second branch pipe is different from the first branch pipe in terms of at least one of diameter, length, and inner volume.
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公开(公告)号：US12085299B2
公开(公告)日：2024-09-10
申请号：US17584869
申请日：2022-01-26
发明人： James P. Ashton , Scott D. Madden
CPC分类号： F24F11/75 , F16K1/22 , F24F13/1426 , G05D7/0173
摘要： An automatic airflow balancing valve, including: a housing having an inlet and an outlet and defining a flow path therethrough; a valve disc operatively connected to the housing and disposed within the flow path; and an airflow volume calibrating assembly disposed in the flow path and operatively connected to the valve disc and the housing to pivot the valve disc to a home position associated with a desired constant airflow volume. The airflow volume calibrating assembly may include an adjustment element that extends toward at least one of the inlet or the outlet.
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公开(公告)号：US20240084670A1
公开(公告)日：2024-03-14
申请号：US18518639
申请日：2023-11-24
申请人： InflowControl AS
发明人： Vidar Mathiesen , Haavard Aakre , Bjornar Werswick
IPC分类号： E21B34/08 , F15D1/02 , F16K15/14 , F16K31/122 , G05D7/01
CPC分类号： E21B34/08 , F15D1/025 , F16K15/14 , F16K31/1221 , G05D7/0133 , E21B43/32
摘要： It is provided a fluid flow control device for establishing a controllable fluid communication between an external fluid reservoir and a base pipe constituting part of a production string, as well as a production string and a method using such a fluid flow control device. The fluid flow control device comprises a primary flow path arranged inside a fluid control device housing, a secondary flow path and a movable valve element arranged at and/or within the primary flow path. The inlet of the secondary flow path is arranged separate from the inlet of the primary flow path.
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公开(公告)号：US11921528B2
公开(公告)日：2024-03-05
申请号：US17692116
申请日：2022-03-10
申请人： Justin C. Sitz
发明人： Justin C. Sitz
CPC分类号： G05D7/0166 , F16K21/185 , F16K31/34 , A01G25/16 , F16K33/00 , B67D3/0003 , B67D3/00
摘要： Apparatuses, systems, and methods are disclosed for fluid flow control. A container is shaped to receive a liquid. An inlet is configured to allow the liquid to enter the container. An outlet is configured to allow the liquid to exit the container. A float is disposed within the container. A valve is actuated based on a position of the float within the container to open the valve at a first liquid level within the container and to close the valve at a different liquid level within the container.
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公开(公告)号：US20240074093A1
公开(公告)日：2024-02-29
申请号：US17900147
申请日：2022-08-31
CPC分类号： H05K7/20145 , G05D7/0173
摘要： A dynamic air baffle comprises: spaced-apart first and second plates configured to be positioned adjacent to at least one heat source to be cooled by an airflow; a heat insulator sandwiched between the first and second plates; and an air flap coupled to the first and second plates and extending into the airflow; wherein the first and second plates are configured such that a differential temperature between the first and second plates causes a differential expansion in lengths of the first and second plates, which rotates the air flap from a rest position, corresponding to when the differential temperature is zero, to a rotated position that is closer to a cooler plate and farther from a hotter plate of the first and second plates, such that the air flap directs more of the airflow to the hotter plate and less of the airflow to the cooler plate.
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公开(公告)号：US11914406B2
公开(公告)日：2024-02-27
申请号：US18123802
申请日：2023-03-20
CPC分类号： G05D7/0133 , F28F27/02 , G05D23/02 , F03G7/065 , F03G7/0614 , F16F1/021 , F16F2224/0258
摘要： A cooling system includes a coolant source to cool down components of a processing chamber and a return line for the coolant coupled between the processing chamber and the coolant source. The return line has a valve, which includes a flow compartment having a first inlet and an outlet that support a default flow rate of the coolant, the flow compartment also having a second inlet. The valve has a plunger with a tip to variably open and close the second inlet to vary a flow rate of the coolant from the default flow rate. The valve has a shape memory alloy (SMA) spring positioned on the plunger between a side of the valve and the tip, the SMA spring attached to the tip to variably withdraw the tip from the second inlet in response to a rise in temperature of the coolant above a threshold temperature value.
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公开(公告)号：US11892861B2
公开(公告)日：2024-02-06
申请号：US17506202
申请日：2021-10-20
申请人： Oscar Becerra Moreno
发明人： Oscar Becerra Moreno
CPC分类号： G05D7/0193 , E21B34/08 , E21B43/12 , G05D7/0146
摘要： An autonomous flow control device with pilot amplification includes a primary valve responsive to changes in fluid composition, and a pilot valve responsive to and more sensitive to changes in fluid composition than the primary valve and configured to aid change in position of the primary valve in the event of a change in fluid composition.
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公开(公告)号：US11815375B2
公开(公告)日：2023-11-14
申请号：US17004423
申请日：2020-08-27
发明人： Jeff Germscheid
CPC分类号： G01F1/3236 , F16K47/04 , G01F1/40 , G05D7/0186
摘要： A metering tube assembly for regulating flow of a fluid is disclosed. The metering tube assembly can include a fluid inlet, a fluid outlet, and a plurality of stacked metering plates located between the fluid inlet and the fluid outlet, each of the plurality of stacked metering plates defining a fluid passageway having a length greater than a thickness of the metering plate, wherein the stacked metering plates are arranged such that a fluid flowing through the metering plates flows sequentially through the fluid passageways of the metering plates.
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公开(公告)号：US11725741B2
公开(公告)日：2023-08-15
申请号：US16514183
申请日：2019-07-17
申请人： Insulet Corporation
发明人： Ian McLaughlin , Daniel Allis
CPC分类号： F16K11/0716 , A61M5/14216 , A61M39/223 , F16K99/0011 , F16K99/0057 , G05D7/0153 , A61M2039/224 , F16K2099/0086
摘要： Disclosed are examples of valve systems and methods of operating the respective valve systems. An example valve system may include a valve body, an inlet component, an outlet component and a valve tube. The valve body may include a first void and a second void. The inlet component may be coupled to the first void and the outlet component may be coupled to the second void. The valve tube may include a side port and may be positioned through the valve body and coupled to the first void, the inlet component, the second void, and the outlet component. Other valve system examples may include including a valve body, a first septum, a second septum, a first piston, a second piston and a tube. The disclosed methods describe the interaction of the respective components of the respective valve system example.
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