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公开(公告)号：US20130118424A1
公开(公告)日：2013-05-16
申请号：US13294717
申请日：2011-11-11
申请人： John Charles Street
发明人： John Charles Street
摘要： The present invention teaches providing heating elements into the nose of an intermediate distance piece of a cryogenic reciprocating pump in order to warm the piston packing seals of the pump. The heating elements increase the temperature of the piston packing seals to limit deformation of the seals while the pump is in operation. In addition, a warm, dry vapor purge may be provided to the interior of the intermediate distance piece to reduce or eliminate rime from interfering with the piston packing seals.
摘要翻译： 本发明教导了将加热元件提供到低温往复泵的中间距离片的鼻部中，以便加热泵的活塞密封件。 加热元件增加活塞密封件的温度，以限制泵在运行时的密封变形。 此外，可以向中间距离件的内部提供温暖，干燥的蒸气吹扫，以减少或消除与活塞密封件的干扰。
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公开(公告)号：US06439863B1
公开(公告)日：2002-08-27
申请号：US09764997
申请日：2001-01-23
IPC分类号： F04B3910
CPC分类号： F02M37/20 , F04B15/00 , F04B19/06 , F04B53/06 , Y10T137/309 , Y10T137/791
摘要： A fuel pump designed to prevent vapor lock. The pump comprises an inlet check valve located between a pumping chamber and a reservoir. The inlet check valve allows the flow of fluid from the reservoir into the pumping chamber. The inlet check valve is constructed such that when a combination of both liquid and vapor is present in the pumping chamber, the liquid and vapor is allowed to flow from the pumping chamber back into the reservoir; but when the pumping chamber is filled only with liquid, the inlet check valve prohibits flow from the pumping chamber into the reservoir.
摘要翻译： 设计用于防止气体锁定的燃油泵。 泵包括位于泵送室和储存器之间的入口止回阀。 入口止回阀允许流体从储存器流入泵送室。 入口止回阀构造成使得当泵送室中存在液体和蒸气两者的组合时，允许液体和蒸气从泵送室流回到储存器中; 但是当泵送室仅用液体填充时，入口止回阀禁止从泵送室流入储存器。
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公开(公告)号：US06193477B1
公开(公告)日：2001-02-27
申请号：US09342372
申请日：1999-06-29
申请人： Theodore J. Falk , W. Richard Brown , Lawrence E. Morris , Norbert W. Frenz, Jr. , Douglas K. Gillies , Raymond S. Konopa
发明人： Theodore J. Falk , W. Richard Brown , Lawrence E. Morris , Norbert W. Frenz, Jr. , Douglas K. Gillies , Raymond S. Konopa
IPC分类号： F04B1704
CPC分类号： A61M5/14276 , A61M5/14216 , F04B11/0091 , F04B17/042 , F04B19/06 , F04B49/243 , F04B53/1032 , F04B2205/063 , F04B2205/503 , F05C2201/046
摘要： All electromagnetic pump comprising a housing having fluid receiving and pumping chambers in communication with an inlet and outlet, respectively, an electromagnet carried by the housing external to the fluid chambers thereof, and an armature movable in the housing having a pole portion magnetically attracted by the electromagnet and a piston portion to force fluid out of the chambers and through the pump outlet. A path provides controlled bypass for bubbles in the fluid around the armature piston portion between the fluid pumping chamber and the fluid receiving chamber only during the return stroke of the armature. Fluid inertial effect is reduced by an outlet orifice provided in the fluid path from the pump outlet and by a bypass orifice in the fluid bypass path, the outlet and bypass orifices being provided either individually or in combination depending upon the fluid flow characteristics of the system of which the pump is a part. An accumulator between the pump outlet and a catheter leading away from the pump alleviates inertial and viscous effects from the catheter. The armature pole portion has a fluid-contacting section of material which is compatible with and corrosion resistant to the fluid, and can be a body of magnetic material within a titanium enclosure or a body of chrome-molybdenum-iron alloy. The check valve and inlet are so arranged that the pump displacement can be reduced without reducing bubble pumping capability.
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公开(公告)号：US5888050A
公开(公告)日：1999-03-30
申请号：US139230
申请日：1998-08-25
CPC分类号： B01J3/008 , F04B19/06 , F04B37/18 , F04B49/065 , F04B49/08 , F04B2015/0818 , F04B2203/10 , F04B2205/05
摘要： A precision high-pressure control assembly for supercritical fluids comprises a continuous flow system having a pressure control loop which includes a source of fluid communicating with a piston driven pump. A pressure sensor monitors the pressure of the supercritical fluid in the outlet line of the pump. A pressure controller has an input for receiving a signal relating to the pressure sent by the pressure sensor and the pressure controller yields an electronic output signal to an electropneumatic regulator. A source of air communicates with the electropneumatic regulator to provide pressurized regulated driver air directed to the pump. The electropneumatic regulator controls the regulated driver air pressure of the pump in accordance with the signal received from the pressure controller. The piston head of the pump is in a cryogenic chamber to minimize flash and cavitation.
摘要翻译： 用于超临界流体的精密高压控制组件包括具有压力控制回路的连续流动系统，压力控制回路包括与活塞驱动泵连通的流体源。 压力传感器监测泵的出口管线中超临界流体的压力。 压力控制器具有用于接收与由压力传感器发送的压力有关的信号的输入端，压力控制器产生电气输出信号到电动气动调节器。 空气源与电动气动调节器连通，以向泵提供加压调节的驱动器空气。 电动气动调节器根据从压力控制器接收的信号控制泵的调节驱动器气压。 泵的活塞头处于低温室，以使闪电和气蚀最小化。
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公开(公告)号：US5787940A
公开(公告)日：1998-08-04
申请号：US646882
申请日：1996-05-08
申请人： John W. Bonn , Anker Gram
发明人： John W. Bonn , Anker Gram
摘要： A system and method for the delivery of cryogenic fluid, more particularly a cryogenic fuel, such as, for example, but not limited to an liquified natural gas (LNG), to a cryogenic fluid using source, and more particularly an LNG fuel source, and even more particularly an LNG fuel-operated engine. The system includes a source of a cryogenic fluid, more particularly an underground tank and with a liquid level within the underground tank source. The system includes a delivery pump to deliver cryogenic fluid from the underground tank source, to a cryogenic using source, typically an LNG fuel source above the underground tank source, with the pump located below the liquid level of the cryogenic fluid in the cryogenic fluid fuel tank. The system includes a sump containing cryogenic fluid, and the delivery pump positioned and immersed in the cryogenic liquid in the sump, and a conduit and valve to deliver cryogenic fluid through the use of the cryogenic fluid flow pump from the underground cryogenic fluid tank source to an above-ground or level using source, such as an LNG operated vehicle.
摘要翻译： 一种用于将低温流体，特别是低温燃料（例如但不限于液化天然气（LNG））输送到使用源的低温流体，更具体地，LNG燃料源的系统和方法， 甚至更具体地是LNG燃料操作的发动机。 该系统包括低温流体源，特别是地下储罐，并且在地下储罐源内具有液位。 该系统包括一个输送泵，以将低温流体从地下储罐源输送到低温使用源，通常是地下罐源上方的LNG燃料源，其中泵位于低温流体燃料中的低温流体的液位之下 坦克。 该系统包括一个包含低温流体的贮槽，并且定位并浸入在贮槽中的低温液体中的输送泵以及导管和阀，以通过使用低温流体泵从地下低温流体槽源输送低温流体， 使用源的地上或水平，例如LNG操作的车辆。
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公开(公告)号：US5477690A
公开(公告)日：1995-12-26
申请号：US294084
申请日：1994-08-22
申请人： Anker Gram
发明人： Anker Gram
CPC分类号： F04B15/06 , F04B19/06 , Y10S417/901 , Y10T137/8622
摘要： Cryogenic fluid piston pump functions as stationary dispensing pump, mobile vehicle fuel pump etc., and can pump vapour and liquid efficiently even at negative feed pressures, thus permitting pump location outside a liquid container. Piston inducts fluid by removing vapour from liquid in an inlet conduit faster than the liquid therein can vaporize by absorbing heat, and moves at essentially constant velocity throughout an induction stroke to generate an essentially steady state induction flow with negligible restriction of flow through an inlet port. Stroke displacement volume is at least two orders of magnitude greater than residual or dead volume remaining in cylinder during stroke changeover, and is greater than volume of inlet conduit. Cryogenic tank has a liquid compartment, a vapour compartment, and inlet and overflow conduits. Inlet conduit receives liquid from dispensing pump and widely disperses liquid into liquid tank to contact and condense vapour. Overflow conduit restricts flow of excess liquid from liquid compartment to vapour compartment. Excess pressure in tank or temperature of overflow liquid from conduit is detected to automatically stop dispensing pump. As a fuel pump, the pump selectively receives cryogenic liquid and vapour from respective conduits communicating with tank, and pumps cryogenic liquid to satisfy relatively heavy fuel demand of engine, which, when satisfied, also pumps vapour to reduce vapour pressure in the tank while sometimes satisfying relatively lighter fuel demand.
摘要翻译： 低温流体活塞泵作为固定式分配泵，移动式车辆燃料泵等，即使在负进料压力下也能有效地泵送蒸汽和液体，从而允许泵位于液体容器外部。 活塞通过从入口导管中的液体中除去蒸气而更快地吸入流体，其中的液体可以通过吸收热量而蒸发，并且在整个感应冲程中以基本上恒定的速度运动，以产生基本上稳定的诱导流，并且通过入口端口的流量可以忽略不计 。 行程位移量比行程转换期间气缸中残留或死体积至少要大两个数量级，大于入口导管的体积。 低温罐有一个液体隔室，一个蒸气隔间，以及进水和溢流管道。 入口管道从分配泵接收液体，并将液体广泛分散到液体罐中以接触和冷凝蒸气。 溢流管道将多余的液体从液体隔间流向蒸气室。 检测到罐内过量压力或导管溢流液温度，自动停止分配泵。 作为燃料泵，泵选择性地从与罐连通的相应管道接收低温液体和蒸气，并且泵送低温液体以满足发动机的相对较重的燃料需求，当满足时，泵也泵送蒸气以减少罐中的蒸汽压力，同时有时 满足相对较轻的燃料需求。
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公开(公告)号：US5156537A
公开(公告)日：1992-10-20
申请号：US780586
申请日：1991-10-22
CPC分类号： F04B11/0025 , F04B19/06 , F04B5/02
摘要： A positive displacement piston pump that can pump multiphase fluids by separating the fluid into its different components inside the pump before pumping the fluids. A reciprocating piston mounted inside the pump barrel divides the barrel into two chambers, with each chamber having an opening. Accumulators located above the chambers and below the pump inlet provide a space for the multiphase fluids entering the pump to separate before entering the chamber. As the multiphase enters each accumulator, gravity causes the liquid to sink and the gas to rise separating the different phases, preferably allowing liquid to enter the chambers before the gas. When the piston moves through the chambers forcing the fluid through outlet valves located on the top side of the chamber the gas will exit the chamber, the accumulator, and the pump before the liquids. The piston moves through the pump barrel in one direction causing the chamber in that direction to decrease in volume thereby forcing the multiphase fluid in that chamber out through an outlet valve and into the pipeline. Simultaneously, fluid from the source pipeline is drawn into the other chamber comprised of the part of the pump barrel in a direction opposite the movement of the piston.
摘要翻译： 一种正排量活塞泵，可以在泵送流体之前将流体分离到泵内的不同部件内，从而泵送多相流体。 安装在泵筒内部的往复式活塞将筒体分成两个室，每个室具有开口。 位于腔室上方和泵入口下方的蓄能器为进入泵的多相流体提供了一个空间，以便在进入腔室之前分离。 当多相进入每个蓄能器时，重力会导致液体下沉，并且气体升高分离不同相，优选地允许液体在气体之前进入腔室。 当活塞移动通过室，迫使流体通过位于室顶部的出口阀时，液体之前的气体将离开室，蓄能器和泵。 活塞在一个方向上移动通过泵筒，导致室在该方向上减小体积，从而迫使该室中的多相流体通过出口阀进入管道。 同时，来自源管道的流体沿着与活塞的运动相反的方向被吸入由泵筒的一部分组成的另一个室中。
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公开(公告)号：US1403140A
公开(公告)日：1922-01-10
申请号：US40150720
申请日：1920-08-05
申请人： WIGGINS OWEN D
发明人： WIGGINS OWEN D
CPC分类号： F04B19/06 , B05B11/06 , F04B53/1037
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59.发明公开公开(公告)号：US20240285930A1
公开(公告)日：2024-08-29
申请号：US18651365
申请日：2024-04-30
IPC分类号： A61M60/435 , A61M1/36 , A61M39/24 , A61M60/113 , A61M60/148 , A61M60/178 , A61M60/258 , A61M60/268 , A61M60/36 , A61M60/43 , A61M60/441 , A61M60/523 , A61M60/531 , A61M60/554 , A61M60/894 , F04B19/06
CPC分类号： A61M60/435 , A61M1/3666 , A61M60/113 , A61M60/148 , A61M60/178 , A61M60/258 , A61M60/268 , A61M60/36 , A61M60/43 , A61M60/441 , A61M60/523 , A61M60/531 , A61M60/554 , A61M60/894 , F04B19/06 , A61M39/24 , A61M2205/103 , A61M2205/106
摘要： Membranes are provided to be specially developed for use in chambers for artificial circulatory assistance which may be employed primarily in cardiovascular procedures, notably to produce arterial capacitance, to regulate blood pressure, to produce aortic counterpulsation and to pump blood. The membrane may have circular sections that may vary in size or not depending on the function to be performed and are interconnected so that the transition between one section and the other is smooth, regardless of the size of each section. Further, chambers and pumps may be used for cardiopulmonary bypass and a pumping system.
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公开(公告)号：US20230413849A1
公开(公告)日：2023-12-28
申请号：US18464794
申请日：2023-09-11
发明人： Luyi WANG
摘要： An air inlet device of a spherical puffing pump for an ice cream machine is provided. The air inlet device includes an air inlet pipe and an anti-spray seat. The air inlet pipe is communicated with a liquid feeding hole of the spherical puffing pump through the anti-spray seat. The anti-spray seat has an upper straight hole, a lower straight hole and a connecting hole. The upper straight hole is communicated with the lower straight hole through the connecting hole. The lower straight hole is communicated with a liquid feeding channel of the liquid feeding hole. The upper straight hole is communicated with the air inlet pipe. A lower end of the connecting hole is provided on an inner wall of a middle of the lower straight hole, and an upper end of the connecting hole is provided on a wall of a lower end of the upper straight hole.
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