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    Cryogenic Pump for Liquefied Natural Gas
    3.
    发明申请
    Cryogenic Pump for Liquefied Natural Gas 有权
    液化天然气低温泵

    公开(公告)号：US20170037836A1

    公开(公告)日：2017-02-09

    申请号：US14820326

    申请日：2015-08-06

    Applicant: Caterpillar Inc.

    Inventor： Cory A. Brown ,  Adrienne M. Brasche ,  Daniel R. Baldwin ,  Sudhindra K. Ayanji ,  Joshua W. Steffen

    IPC: F04B15/08 ,  F04B17/05 ,  F04B53/16

    CPC classification number: F04B15/08 ,  F04B23/021 ,  F04B23/023 ,  F04B37/08 ,  F04B2015/081 ,  F17C2227/0142 ,  F17C2227/0178 ,  F17C2265/066

    Abstract: A cryogenic pump for pumping liquefied natural gas (LNG) from a cryogenic tank storing LNG includes a drive assembly and a pump assembly disposed along a pump axis. The drive assembly includes a spool housing having a plurality of spool valves arranged around the pump axis, a tappet housing having a plurality of tappet bores with slidable tappets arranged around the pump axis, and spring housing including a plurality of movably disposed pushrods urged upward by a plurality of associated pushrod springs. Hydraulic fluid received by a hydraulic fluid inlet in the drive assembly is directed by the spool valves to the tappet bores to move the tappets downward against the pushrods. To collect the hydraulic fluid, the lowermost spring housing also includes a collection cavity formed therein that can return the hydraulic fluid to a hydraulic fluid outlet.

    Abstract translation: 用于从储存LNG的低温罐泵送液化天然气（LNG）的低温泵包括沿泵轴设置的驱动组件和泵组件。 所述驱动组件包括具有围绕所述泵轴线布置的多个滑阀的卷轴壳体，具有多个具有围绕所述泵轴线布置的可滑动挺杆的挺杆孔的挺杆壳体，以及弹簧壳体，所述弹簧壳体包括多个可移动地设置的推杆， 多个相关的推杆弹簧。 由驱动组件中的液压流体入口接收的液压流体由滑阀引导到挺杆孔，以使挺杆向下抵靠推杆。 为了收集液压流体，最下面的弹簧壳体还包括其中形成的收集腔，其能够将液压流体返回到液压流体出口。

    Hydraulic Drive Multi-Element Cryogenic Pump
    4.
    发明申请
    Hydraulic Drive Multi-Element Cryogenic Pump 审中-公开
    液压驱动多元件低温泵

    公开(公告)号：US20160377068A1

    公开(公告)日：2016-12-29

    申请号：US14753585

    申请日：2015-06-29

    Applicant: Caterpillar Inc.

    Inventor： Cory A. Brown ,  Adrienne M. Brasche ,  Sunil J. Bean ,  Shivangini S. Hazari ,  Sana Mahmood ,  Nikhil M. Arya ,  Joshua W. Steffen ,  Daniel R. Baldwin ,  Dana R. Coldren ,  Robert M. Campion ,  Alan R. Stockner

    IPC: F04B15/08 ,  F04B7/02 ,  F04B1/12 ,  F04B1/28 ,  F04B1/16

    CPC classification number: F04B23/02 ,  F04B9/1176 ,  F04B23/023 ,  F04B23/06 ,  F04B37/08 ,  F04B49/065 ,  F04B2015/081 ,  F17C2227/0142

    Abstract: A cryogenic fluid pump includes a plurality of pumping elements, each of the plurality of pumping elements having an actuator portion that is associated with and configured to selectively activate one end of a pushrod in response to a command by an electronic controller, an activation portion associated with an opposite end of the pushrod, and a pumping portion associated with the activation portion. For each of the plurality of pumping elements, the pumping portion is activated for pumping a fluid by the activation portion, which activation portion is activated by the actuator portion. The electronic controller is configured to selectively activate each of the plurality of pumping elements such that a flow of fluid from the cryogenic fluid pump results from continuous activations of the plurality of pumping elements at selected dwell times between activations of successive pumping elements.

    Abstract translation: 低温流体泵包括多个泵送元件，所述多个泵送元件中的每一个具有致动器部分，所述致动器部分响应于电子控制器的命令而相关联并且被配置为选择性地激活推杆的一端，激活部分相关联 其具有推杆的相对端，以及与激活部分相关联的泵送部分。 对于多个泵送元件中的每一个，泵送部分被启动，用于通过致动部分泵送流体，该致动部分由致动器部分激活。 电子控制器被配置为选择性地激活多个泵送元件中的每一个，使得来自低温流体泵的流体流由连续泵送元件的激活之间选定的停留时间的多个泵送元件的连续激活产生。

    Cryogenic pump for liquefied natural gas
    6.
    发明授权
    Cryogenic pump for liquefied natural gas 有权

    公开(公告)号：US10024311B2

    公开(公告)日：2018-07-17

    申请号：US14820326

    申请日：2015-08-06

    Applicant: Caterpillar Inc.

    Inventor： Cory A. Brown ,  Adrienne M. Brasche ,  Daniel R. Baldwin ,  Sudhindra K. Ayanji ,  Joshua W. Steffen

    IPC: F04B15/08 ,  F04B23/02 ,  F04B37/08

    Abstract: A cryogenic pump for pumping liquefied natural gas (LNG) from a cryogenic tank storing LNG includes a drive assembly and a pump assembly disposed along a pump axis. The drive assembly includes a spool housing having a plurality of spool valves arranged around the pump axis, a tappet housing having a plurality of tappet bores with slidable tappets arranged around the pump axis, and spring housing including a plurality of movably disposed pushrods urged upward by a plurality of associated pushrod springs. Hydraulic fluid received by a hydraulic fluid inlet in the drive assembly is directed by the spool valves to the tappet bores to move the tappets downward against the pushrods. To collect the hydraulic fluid, the lowermost spring housing also includes a collection cavity formed therein that can return the hydraulic fluid to a hydraulic fluid outlet.

    Bearing Arrangement for Cryogenic Pump
    7.
    发明申请
    Bearing Arrangement for Cryogenic Pump 有权
    低温泵轴承布置

    公开(公告)号：US20160201659A1

    公开(公告)日：2016-07-14

    申请号：US14597019

    申请日：2015-01-14

    Applicant: Caterpillar Inc.

    Inventor： Bryan E. Nelson ,  Daniel R. Baldwin ,  Alan R. Stockner ,  Robert M. Campion ,  Cory A. Brown ,  Joshua W. Steffen ,  Dana R. Coldren ,  Sana Mahmood

    IPC: F04B27/10 ,  F16C23/08 ,  F16C19/54

    CPC classification number: F04B27/1054 ,  F04B27/1063 ,  F04B37/08 ,  F16C19/06 ,  F16C19/30 ,  F16C19/547 ,  F16C23/086 ,  F16C2360/00

    Abstract: A bearing arrangement for a wobble plate piston pump includes first, second, third, and fourth bearing assemblies. The first and second bearing assemblies support the drive shaft portion for rotation within the housing about the central longitudinal axis, while the third and fourth bearing assemblies support the load plate for rotation relative to the offset shaft portion of the shaft. The second bearing assembly is distally disposed from the first, the third disposed distally to second, and the fourth disposed distally to third. The fourth bearing assembly is the most distally disposed bearing assembly along the shaft.

    Abstract translation: 摆动板活塞泵的轴承装置包括第一，第二，第三和第四轴承组件。 第一和第二轴承组件支撑驱动轴部分，用于围绕中心纵向轴线在壳体内旋转，同时第三和第四轴承组件支撑负载板以相对于轴的偏心轴部分旋转。 第二轴承组件从第一轴向组件向远侧设置，第三轴向组件向远侧配置到第二轴承组件，而第四轴向组件向远侧配置到第二轴承组件。 第四轴承组件是沿着轴的最远端布置的轴承组件。

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