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    Cryogenic fluid pump system and method of pumping cryogenic fluid
    2.
    发明授权
    Cryogenic fluid pump system and method of pumping cryogenic fluid 失效
    低温流体泵系统和泵送低温流体的方法

    公开(公告)号：US5411374A

    公开(公告)日：1995-05-02

    申请号：US39908

    申请日：1993-03-30

    申请人： Anker Gram

    发明人： Anker Gram

    IPC分类号： F04B15/06 ,  F04B19/06 ,  F04B15/08

    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。

    Liquid carbon dioxide delivery pump, and supercritical fluid chromatograph provided with the same
    6.
    发明授权
    Liquid carbon dioxide delivery pump, and supercritical fluid chromatograph provided with the same 有权

    公开(公告)号：US10451049B2

    公开(公告)日：2019-10-22

    申请号：US15061214

    申请日：2016-03-04

    申请人： SHIMADZU CORPORATION

    发明人： Shintaro Yamamoto

    IPC分类号： F04B39/06 ,  G01N30/32 ,  F04B15/06 ,  G01N30/30 ,  F04B15/08 ,  G01N30/36

    摘要： A liquid carbon dioxide delivery pump with a pump head including a pump chamber and a refrigerant channel different from a channel passing through the pump chamber, a circulation channel for refrigerant, a refrigerant pump arranged on the circulation channel, the refrigerant pump for causing the refrigerant to circulate through the circulation channel, and a cooling section arranged on the circulation channel, at a position away from the pump head, the cooling section being configured to cool the refrigerant passing through the circulation channel. The liquid carbon dioxide delivery pump further has a temperature sensor for detecting an ambient temperature of the pump head or a temperature of the pump head, and a refrigerant pump control section for adjusting, based on a detection signal of the temperature sensor, a flow rate of the refrigerant pump such that liquid carbon dioxide flowing through the pump head at a specific temperature.

    Check valve with improved response time
    7.
    发明授权
    Check valve with improved response time 有权

    公开(公告)号：US10274094B2

    公开(公告)日：2019-04-30

    申请号：US14777426

    申请日：2014-03-11

    申请人： Westport Power Inc.

    发明人： Kamal Hatami Aghdam

    IPC分类号： F16K15/02 ,  F04B39/10 ,  F04B53/10 ,  F04B15/06 ,  F16K27/02 ,  F04B53/16 ,  F04B15/08

    摘要： A check valve with improved response time comprises a valve member which has a central portion of a substantially convex shape and a guide portion that surrounds the central portion. The central portion has a central convex curvature extending towards the outlet port of the check valve, in the direction of the fluid flow. The guide portion has a weight to area ratio that is smaller than the weight to area ratio of the central portion. Such a check valve has an overall reduced weight of the valve member allowing a faster response time when the valve switches between its closed and open positions.

    Liquid hydrocarbon slug containing vapor recovery system
    9.
    发明授权
    Liquid hydrocarbon slug containing vapor recovery system 有权
    含烃气体的蒸汽回收系统

    公开(公告)号：US08900343B1

    公开(公告)日：2014-12-02

    申请号：US13962644

    申请日：2013-08-08

    申请人： Rodney T. Heath ,  Forrest D. Heath ,  Gary Heath

    发明人： Rodney T. Heath ,  Forrest D. Heath ,  Gary Heath

    IPC分类号： B01D19/00 ,  F04B15/06

    CPC分类号： F04B15/06 ,  C10L3/10 ,  F04B25/00

    摘要： A liquid hydrocarbon slug-containing vessel for incorporation into a system integrating a low-pressure separator with a vapor recovery process system, and a method for regulating the temperature of a gas to be compressed by a two stage compressor so as to prevent liquification of the gas and to prevent over-heating of the compressor.

    摘要翻译： 一种用于结合到低压分离器与蒸气回收处理系统的系统中的液态烃类容器，以及用于调节由两级压缩机压缩的气体的温度的方法，以防止液化 气体并防止压缩机过热。