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公开(公告)号：US4379434A
公开(公告)日：1983-04-12
申请号：US158288
申请日：1980-06-10
申请人： Petur Thordarson
发明人： Petur Thordarson
CPC分类号： G01F23/62 , G01F23/0015
摘要： A float is moved upwardly or downwardly by liquid being added to a liquid holding tank. The float carries a first permanent magnet which is moved by the float towards a second magnet which is separated therefrom by a liquid tight partition. The permanent magnets are arranged with like poles directed towards each other so that the permanent magnets will repel each other and movement of the first permanent magnet in response to a liquid level change will cause the second permanent magnet to be moved in response to the repelling force. The second permanent magnet is positioned in line with a depressable control member of a normally closed valve in a gas line. Movement of the second permanent magnet against such control member depresses the control member to open the valve, allowing gas to flow from a storage tank to a piston in a normally closed valve that is located in a second line leading from the gas supply to a horn. The gas pressure moves piston to open the valve and allow a flow of gas to operate the horn.
摘要翻译： 通过液体被添加到液体容纳槽中，浮子被向上或向下移动。 浮子带有第一永磁体，该永磁体被浮子移向第二磁体，第二磁体通过液密分隔件分离。 永磁体被布置成具有朝向彼此的相同极，使得永磁体将彼此排斥并且响应于液位变化而使第一永磁体的移动将导致第二永磁体响应于排斥力而移动 。 第二永磁体与气体管线中的常闭阀的可压下的控制构件一致。 第二永磁体相对于这种控制构件的移动压下控制构件以打开阀门，允许气体从位于从气体供给到喇叭的第二线中的常闭阀中的储罐流动到活塞 。 气体压力移动活塞以打开阀门并允许气体流动以操作喇叭。
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公开(公告)号：US06622753B2
公开(公告)日：2003-09-23
申请号：US10224095
申请日：2002-08-20
IPC分类号： G05D700
CPC分类号： G05D7/0106 , G05D7/005 , Y10T137/87684 , Y10T137/87917
摘要： A flow controller having a first and second stages of regulation. The first stage is a pressure regulation stage that maintains the pressure within an intermediate chamber (formed by a series of interconnected passageways and cavities) within a predetermined range above the pressure in an outlet port. The second stage maintains the flow rate within a predetermined range about a target flow rate. Both stages sample the pressure in the outlet port and automatically adjust the flow of fluid to ensure that fluctuations in pressure at the inlet and outlet ports do not affect the flow rate. The flow rate is set and controlled by a user determined setpoint. The pressure is regulated by one or more feedback systems. The feedback systems used may be mechanical or electromechanical based on a particular operating environment.
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公开(公告)号：US4015626A
公开(公告)日：1977-04-05
申请号：US651360
申请日：1976-01-22
申请人： Petur Thordarson
发明人： Petur Thordarson
CPC分类号： G05D7/0186 , G05D7/0106 , Y10T137/7036 , Y10T137/7788
摘要： A constant flow valve for low flow rates employs a tire valve assembly which is threadably received within the downstream end portion of an axial passageway formed in an elongated inlet tube. The tube is received within a stem portion of a first part of an internal housing. A movable wall which is at its periphery clamped between a base portion of such first part and a bell portion of the second part, divides the interior of said housing into upstream and downstream chambers. The stem portion of the tire valve assembly extends into the upstream chamber and contacts the movable wall. A biasing spring is located in the downstream chamber and exerts a biasing force against the movable wall which is in turn transmitted to the control stem. A considerable length of relatively small internal diameter, high flow resistance tubing is coiled about the inlet tube and the stem portion of the first housing part. The upstream end of the tubing communicates with the upstream chamber and the downstream end of the tubing communicates with the downstream chamber. The tubing performs the dual functions of a pressure reducing restriction between the two chambers and a flow rate averager. An external casing surrounds the coil of tubing and at least portions of the inlet tube and the internal housing and a plastic filler material is provided in the exterior casing about the components enclosed thereby. An outlet passageway leads outwardly from the downstream chamber to an outlet fitting.
摘要翻译： 用于低流量的恒流阀采用轮胎气门组件，该组件可螺纹地容纳在形成于细长入口管中的轴向通道的下游端部分内。 管被容纳在内部壳体的第一部分的杆部分内。 位于其周边的活动壁夹在第一部分的基部和第二部分的钟形部之间，将所述壳体的内部分成上游和下游室。 轮胎气门组件的杆部分延伸到上游室并接触活动壁。 偏压弹簧位于下游室中，并且对可移动壁施加偏置力，该偏压弹力又传递到控制杆。 相当长的相对较小的内径，高流阻的管道围绕入口管和第一壳体部分的杆部分盘绕。 管的上游端与上游室连通，并且管的下游端与下游室连通。 管道执行两个室之间的减压限制和流量平均器的双重功能。 外部套管围绕管线圈，并且入口管和内部壳体的至少一部分和塑料填充材料围绕由此封装的部件设置在外部壳体中。 出口通道从下游室向外引导到出口接头。
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公开(公告)号：US06564825B2
公开(公告)日：2003-05-20
申请号：US10226378
申请日：2002-08-23
IPC分类号： G05D706
CPC分类号： G05D7/0635 , Y10T137/0318 , Y10T137/0989 , Y10T137/7761
摘要： A flow meter system that calculates mass flow rate based only on a single pressure signal. A flow controller is arranged in parallel with a restriction such that it constant pressure differential is maintained across the restriction. The pressure, and temperature if not controlled, of the fluid flowing through the restriction is measured on either side of the restriction. The pressure is compared to a plot of pressure versus mass flow rate calculated for the specific restriction and fluid being measured. The constant pressure differential maintained across the restriction yields a linear relationship between pressure and flow rate. If temperature is not controlled, the plot or pressure versus mass flow rate will remain linear, but the slope of the curve will be adjusted based on the temperature of the fluid.
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公开(公告)号：US06484491B1
公开(公告)日：2002-11-26
申请号：US10085558
申请日：2002-02-26
申请人： Petur Thordarson
发明人： Petur Thordarson
IPC分类号： B63H1100
摘要： A system for propelling a watercraft using hydrogen. The system comprises a combustion chamber, an accumulator system, an ignition system, and a propulsion control system. The combustion chamber defines an upper portion and a lower portion. The accumulator system stores pressurized fluid. A first check valve is arranged to allow water to flow from the exterior of the watercraft into the lower portion of the combustion chamber. A second check valve is arranged to allow water to flow from the lower portion of the combustion chamber to the accumulator system. A propulsion control valve is arranged to control the flow of water from the accumulator system to the exterior of the watercraft. A mixture of hydrogen and oxygen is introduced into the upper portion of the combustion chamber. An ignition system for igniting the mixture of hydrogen and oxygen in the combustion chamber to create expanding gases that force the water in the lower portion of the combustion chamber into the accumulator system through the second check valve. The propulsion control system operates the propulsion control valve to allow water in the accumulator system to flow to the exterior of the watercraft at a desired flow rate.
摘要翻译： 使用氢气推进船只的系统。 该系统包括燃烧室，蓄能器系统，点火系统和推进控制系统。 燃烧室限定上部和下部。 蓄能器系统存储加压流体。 第一止回阀布置成允许水从船舶的外部流入燃烧室的下部。 第二止回阀被布置成允许水从燃烧室的下部流动到蓄能器系统。 推进控制阀被布置成控制从蓄能器系统到船舶外部的水流。 将氢和氧的混合物引入燃烧室的上部。 一种用于点燃燃烧室中的氢和氧的混合物的点火系统，以产生膨胀的气体，其通过第二止回阀迫使燃烧室的下部的水进入蓄能器系统。 推进控制系统操作推进控制阀以允许蓄能器系统中的水以期望的流速流到船舶的外部。
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公开(公告)号：US6026849A
公开(公告)日：2000-02-22
申请号：US119383
申请日：1998-07-20
申请人： Petur Thordarson
发明人： Petur Thordarson
CPC分类号： G05D16/0672 , G05D16/0602 , G05D7/0106 , Y10T137/7788 , Y10T137/7826 , Y10T137/87917
摘要： A flow regulator having a first and second stages of regulation. The first stage is a pressure regulation stage that maintains the pressure within an intermediate chamber (formed by a series of interconnected passageways and cavities) within a predetermined range above the pressure in an outlet port. The second stage maintains the flow rate within a predetermined range about a target flow rate. Both stages sample the pressure in the outlet port and automatically adjust the flow of fluid to ensure that fluctuations in pressure at the inlet and outlet ports do not affect the flow rate. The flow rate is set and controlled by a piston and valve arrangement. The pressure is regulated by a similar piston and valve arrangement. A flexible membrane is used to allow pressures in one chamber to be transferred into a control signal that operates a control valve in another chamber. One or more of several types of control valves may be used depending upon such factors as the input pressure and the type of fluid being controlled. The controller can be easily manufactured using injected molded steel or plastic with minimal milling passageways after the molding process.
摘要翻译： 具有第一和第二级调节的流量调节器。 第一级是压力调节级，其将压力保持在高于出口端口压力的预定范围内的中间室（由一系列相互连接的通道和空腔形成）。 第二阶段将流量保持在围绕目标流量的预定范围内。 两个阶段对出口端口的压力进行取样，并自动调节流体流量，以确保入口和出口端口的压力波动不影响流量。 流量由活塞和阀门装置设定和控制。 压力由类似的活塞和阀门装置调节。 使用柔性膜将一个室中的压力转移到操作另一个室中的控制阀的控制信号中。 可以根据诸如输入压力和被控制的流体的类型等因素使用几种类型的控制阀中的一种或多种。 在模制过程之后，控制器可以使用注塑模制钢或塑料轻松制造，并具有最小的铣削通道。
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公开(公告)号：US20110226354A1
公开(公告)日：2011-09-22
申请号：US13047762
申请日：2011-03-14
申请人： Petur Thordarson
发明人： Petur Thordarson
IPC分类号： F16K31/365 , F17D3/00 , A01G25/16 , B05B15/00
CPC分类号： G05D16/0672 , Y10T137/0357 , Y10T137/776
摘要： An system and method for flow control by controlling the output pressure for a liquid or a gas independently of the input pressure.
摘要翻译： 用于独立于输入压力控制液体或气体的输出压力的用于流量控制的系统和方法。
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公开(公告)号：US06561207B2
公开(公告)日：2003-05-13
申请号：US10229634
申请日：2002-08-28
IPC分类号： G05D706
CPC分类号： G05D7/0635 , Y10T137/0318 , Y10T137/0989 , Y10T137/7761
摘要： A flow meter system that calculates mass flow rate based only on a single pressure signal. A flow controller is arranged in parallel with a restriction such that a constant pressure differential is maintained across the restriction. The pressure, and temperature if not controlled, of the fluid flowing through the restriction is measured on either side of the restriction. The pressure is compared to a plot of pressure versus mass flow rate calculated for the specific restriction and fluid being measured. The constant pressure differential maintained across the restriction yields a linear relationship between pressure and flow rate. If temperature is not controlled, the plot of pressure versus mass flow rate will remain linear, but the slope of the curve will be adjusted based on the temperature of the fluid.
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公开(公告)号：US06467505B1
公开(公告)日：2002-10-22
申请号：US09805708
申请日：2001-03-13
IPC分类号： G05D700
CPC分类号： G05D7/0106 , G05D7/005 , Y10T137/87684 , Y10T137/87917
摘要： A flow controller having a first and second stages of regulation. The first stage is a pressure regulation stage that maintains the pressure within an intermediate chamber (formed by a series of interconnected passageways and cavities) within a predetermined range above the pressure in an outlet port. The second stage maintains the flow rate within a predetermined range about a target flow rate. Both stages sample the pressure in the outlet port and automatically adjust the flow of fluid to ensure that fluctuations in pressure at the inlet and outlet ports do not affect the flow rate. The flow rate is set and controlled by a user determined setpoint. The pressure is regulated by one or more feedback systems. The feedback systems used may be mechanical or electromechanical based on a particular operating environment.
摘要翻译： 具有第一和第二级调节的流量控制器。 第一级是压力调节级，其将压力保持在高于出口端口压力的预定范围内的中间室（由一系列相互连接的通道和空腔形成）。 第二阶段将流量保持在围绕目标流量的预定范围内。 两个阶段对出口压力进行采样，并自动调节流体流量，以确保入口和出口端口的压力波动不影响流量。 流量由用户确定的设定值设定和控制。 压力由一个或多个反馈系统调节。 所使用的反馈系统可以是基于特定操作环境的机械或机电。
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公开(公告)号：US4052903A
公开(公告)日：1977-10-11
申请号：US747488
申请日：1976-12-06
申请人： Petur Thordarson
发明人： Petur Thordarson
CPC分类号： G01N33/24 , E02D1/027 , E21B47/06 , G01L11/006
摘要： A cup-shaped elastomeric diaphragm is snugly fitted onto an end portion of a support member which includes internal gas delivery and return passageways. A plurality of ports extend both radially and axially from the gas delivery passageway towards the diaphragm. A like number of identical gas return ports extend from another region of the diaphragm inwardly to the gas return passageway. A gas tight seal is provided between the diaphragm and the support member above the ports. In use the outer surface of the diaphragm is subjected to a pressure to be measured, e.g. subsurface hydrostatic pressure. A gas is delivered into the delivery passageway and through the sensor at a constant flow rate. The gas pressure expands the diaphragm in the regions of the ports to complete gas flow paths from the gas delivery ports to the gas return ports. The magnitude of the pressure to be measured acting on the diaphragm determines the gas pressure that is necessary to drive the gas through the sensor at a constant flow rate. The driving pressure of the gas is measured and is used to determine the magnitude of the pressure that is being measured.
摘要翻译： 杯形弹性体膜片紧密地装配到支撑构件的端部，其包括内部气体输送和返回通道。 多个端口从气体输送通道径向和轴向延伸到隔膜。 类似数量的相同的气体返回端口从膜片的另一区域向内延伸到气体返回通道。 在隔膜和端口上方的支撑构件之间设置气密封。 在使用中，隔膜的外表面经受测量的压力，例如， 地下静水压力。 气体以恒定的流速传送到输送通道并通过传感器。 气体压力使端口区域中的隔膜膨胀，以完成从气体输送端口到气体返回端口的气体流动路径。 作用在隔膜上的被测量压力的大小决定了以恒定的流量驱动气体通过传感器所需的气体压力。 测量气体的驱动压力并用于确定正在测量的压力的大小。
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