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332 条记录 (耗时 0.023 秒)

    Fluid-driven linear motor
    2.
    发明授权
    Fluid-driven linear motor 有权

    公开(公告)号：US11441534B2

    公开(公告)日：2022-09-13

    申请号：US17310621

    申请日：2020-02-18

    申请人： Flapump AS

    发明人： Jostein Fladby ,  Trygve Fladby ,  Sissel Fladby van Woensel Kooy

    IPC分类号： F03C1/007 ,  F04B47/08 ,  E21B43/12 ,  F01B11/00 ,  F03C1/013 ,  F04B9/105 ,  F15B15/14 ,  F04D13/04

    摘要： A fluid-driven linear motor comprises a cylinder, a piston, and a piston rod connected to the piston. Two sides of the piston in the cylinder are alternately supplied with fluid from a slide valve arrangement. The slide valve arrangement includes a slide and a pilot rod adapted to alternately set a through-bore of a slide in fluid connection with the ends of the slide when the piston is located in its end positions. The pilot rod is provided with an extension rod adapted to move inside a bore of the piston and the piston rod, so that the stroke length of the linear motor can be extended. A pressure chamber is provided at the distal end of the pilot rod. The pressure chamber is adapted to hold the pilot rod with a holding force when in its end positions until mechanical forces from the piston overcome said holding force.

    Hydraulic pump jack system for oil and gas wells
    8.
    发明授权
    Hydraulic pump jack system for oil and gas wells 有权
    油气井液压泵千斤顶系统

    公开(公告)号：US09377010B1

    公开(公告)日：2016-06-28

    申请号：US13726057

    申请日：2012-12-22

    申请人： Kenneth B. Madgwick

    发明人： Kenneth B. Madgwick

    IPC分类号： F04B47/08 ,  F04B7/00

    CPC分类号： F04B7/00 ,  E21B43/126 ,  F04B47/04 ,  F04B47/08

    摘要： A hydraulic pump jack cylinder is coupled with a closed loop hydraulic circuit, which includes a hydrostatic pump that delivers hydraulic fluid under pressure to the pump jack cylinder. The pump jack cylinder includes an inner extension piston area and an outer retraction piston area which are configured to have substantially the same area to establish a cylinder ration at 1:1. The hydrostatic pump drives the cylinder rod connected to the oil well sucker rod at a constant velocity in both the extension and retraction strokes with a quick sinusoidal turn-around at the ends of the strokes to provide a change in stroke direction. The swash plate in the hydrostatic pump brake the flow of fluid from the pump jack cylinder during retraction to prevent free-fall. A programmable logic controller controls the swash plate angles to switch stroke direction before the cylinder rod bottoms out.

    摘要翻译： 液压泵千斤顶缸与闭环液压回路耦合，该回路液压回路包括一个液压泵，其将压力下的液压流体输送到泵千斤顶缸。 泵提升缸包括内部延伸活塞区域和外部缩回活塞区域，其被构造成具有基本上相同的面积以建立1：1的气缸比例。 静液压泵在延伸和回缩行程中以恒定的速度驱动连接到油井抽油杆的气缸杆，在行程的末端用快速正弦转向提供行程方向的变化。 静液压泵中的斜盘在回缩过程中从泵起动气缸中流出液体，以防止自由落体。 可编程逻辑控制器控制斜盘角度，以在气缸杆底部出现之前切换行程方向。

    Hydraulic gravity ram pump
    9.
    发明授权
    Hydraulic gravity ram pump 有权
    液压重力泵

    公开(公告)号：US08932030B2

    公开(公告)日：2015-01-13

    申请号：US13965009

    申请日：2013-08-12

    申请人： Richard F. McNichol ,  Gordon Bryce

    发明人： Richard F. McNichol ,  Gordon Bryce

    IPC分类号： F04B17/00 ,  F04B35/00 ,  F04B47/08 ,  F04B19/00 ,  F04B47/10 ,  F04B9/107

    CPC分类号： F04B9/1076 ,  F04B9/107 ,  F04B19/00 ,  F04B47/08 ,  F04B47/10

    摘要： A piston type pumping apparatus comprises a vertically oriented cylinder having a top and a bottom with a first aperture. There are first and second passageways for liquid in the cylinder at the top and bottom respectively thereof. A piston is reciprocatingly mounted within the cylinder and has an area against which pressurized fluid acts in the direction of movement of the piston. A hollow piston rod is connected to the piston and extends below the piston and slidably through the first aperture. There is a reload chamber below the cylinder. The piston rod extends slidably into the reload chamber and has a third passageway for liquid communicating thereto. A first one-way valve is located in the third passageway. There is also a fourth passageway that extends from the reload chamber to a source of liquid to be pumped and a second one-way valve therein.

    摘要翻译： 活塞式泵送装置包括具有顶部和底部的具有第一孔的垂直定向的气缸。 在缸体的顶部和底部分别有液体的第一和第二通道。 活塞往往安装在气缸内，并具有加压流体沿活塞运动方向作用的区域。 中空活塞杆连接到活塞并在活塞下方延伸并可滑动地穿过第一孔。 在气缸下面有一个重新加载室。 活塞杆可滑动地延伸到重新加载室中，并且具有用于与其连通的液体的第三通道。 第一个单向阀位于第三个通道中。 还有一个从重新加载室延伸到待泵送的液体源的第四通道和其中的第二单向阀。

    Ejector-Less Vacuum Creation Pump Using Suction
    10.
    发明申请
    Ejector-Less Vacuum Creation Pump Using Suction 审中-公开
    抽吸式真空泵吸入泵

    公开(公告)号：US20130078120A1

    公开(公告)日：2013-03-28

    申请号：US13245056

    申请日：2011-09-26

    申请人： Baron Raymond Green ,  Ben Charles Weinrib

    发明人： Baron Raymond Green ,  Ben Charles Weinrib

    IPC分类号： F04B47/08

    CPC分类号： F04D9/04 ,  F04D9/041

    摘要： Improvements in an ejector-less vacuum creation pump using suction from a low vibration and noise Eddy pump to create vacuum from the suction side of the pump volute where a liquid tornado effect feeds into an Eddy current effect located in the tornado center. Low heat is transferred to the fluid used to create the vacuum. The piping provides a fully open looped system, enabling self-priming of the pump where 2″ solid objects can pass thru the pump without clogging or plugging the pump. Fluid can be pumped in any direction with up to a 4 psi head pressure using the pump as a dedicated discharge pump and for quicker discharging of a VCHT tank at increased head pressures. This pump implement continuous vacuum creation, maintaining 18 Hg with a vacuum release valve to prevent build-up of urine crystals and other pipe clogging issues.

    摘要翻译： 使用来自低振动和噪声涡流泵的抽吸器，在无喷射器真空产生泵中的改进，从泵涡流的吸入侧产生真空，其中液体龙卷风效应进入位于龙卷风中心的涡流效应。 低热转移到用于产生真空的流体。 管道提供了一个完全开环的系统，可以自动启动泵，其中2“固体物体可以通过泵而不堵塞或堵塞泵。 流体可以使用泵作为专用排放泵，以任何方向泵送高达4 psi的头部压力，并在增加的头部压力下更快地排放VCHT罐。 该泵实现连续真空创建，用真空释放阀保持18 Hg，防止尿液晶体的积聚和其他管道堵塞问题。