公开(公告)号：US12098717B2

公开(公告)日：2024-09-24

申请号：US17619029

申请日：2020-05-29

申请人： Uhde High Pressure Technologies GmbH ,  thyssenkrupp AG

发明人： Holger Werth ,  Alexander Cosack

IPC分类号： F04B9/113 ,  B01J19/24 ,  C08F2/00 ,  C08F2/01 ,  C08F2/38 ,  C08F10/02 ,  C08F110/02 ,  C08F210/02 ,  F04B9/117 ,  F04B11/00 ,  F04B49/06

CPC分类号： F04B9/113 ,  B01J19/2415 ,  C08F2/00 ,  C08F2/01 ,  C08F2/38 ,  C08F10/02 ,  C08F110/02 ,  C08F210/02 ,  F04B9/1172 ,  B01J2219/00094 ,  B01J2219/00159 ,  B01J2219/00162 ,  F04B11/005 ,  F04B49/06 ,  Y02P30/40

摘要： A pump injection arrangement can inject a medium at least one process position into a high-pressure process, in particular at least two different pressure levels. The pump injection arrangement includes injection pump apparatuses for the medium and a regulating unit coupled to the injection pump apparatuses and configured for regulating the injection by at least two of the injection pump apparatuses. The pump injection arrangement is configured for synchronized regulation of the injection pump apparatuses with dependence on one another. At least two of the synchronously regulated injection pump apparatuses are double acting bidirectionally operating high-pressure pumps that are functionally coupled with at least single redundancy to the regulating unit such that pressure can be generated via at least two shafts and the pressurized medium can be made available for injection via a joint high-pressure conduit. In this way, advantageous pressure and pumping characteristics can be achieved.

公开(公告)号：US11629707B2

公开(公告)日：2023-04-18

申请号：US16633767

申请日：2018-07-11

申请人： WEIR MINERALS NETHERLANDS B.V.

发明人： Ronald Godefridus Anna Keijers ,  Rudolfus Johannes Adeleida Van Rijswick

IPC分类号： F04B9/117 ,  F04B15/02

摘要： This disclosure relates to a pump system for handling a slurry medium, the pump system comprising a pump unit (101) consisting of at least two reciprocating positive displacement slurry pumps, both pumps being arranged for alternating intake of slurry medium via a slurry suction inlet (103) and discharge of slurry medium via a slurry discharge outlet (103); a pump drive unit (104) for driving the at least two reciprocating positive displacement pumps of said pump unit; as well as a slurry damping pump unit (105) for damping discharge pulsations in the slurry medium being pumped.

公开(公告)号：US10539130B2

公开(公告)日：2020-01-21

申请号：US15445950

申请日：2017-02-28

申请人： Robert Bosch GmbH

发明人： Christian Frick ,  Hakan Camurdan ,  Markus Gepraegs ,  Stephan Rohde

IPC分类号： F04B49/22 ,  F04B9/117 ,  F04B15/02

摘要： A pressure-maintaining valve arrangement of a purge circuit of a closed hydraulic circuit includes a pressure-maintaining valve configured to be shut off via a pilot valve. In one embodiment, a control pressure chamber, acting in the closing direction, of the pressure-maintaining valve is configured to be relieved via the pilot valve to a tank, and the pressure-maintaining valve is closed via a spring acting in the closing direction. In another embodiment, the valve arrangement includes an additional control pressure chamber acting in the closing direction. The additional control pressure chamber is configured to be loaded via the pilot valve, and the pressure-maintaining valve closes. The pressure of the inlet of the pressure-maintaining valve is used for this purpose.

公开(公告)号：US10273955B2

公开(公告)日：2019-04-30

申请号：US15352284

申请日：2016-11-15

申请人： Caterpillar Inc.

发明人： Sunil J. Bean ,  Cory A. Brown

IPC分类号： F04B53/16 ,  F04B15/08 ,  F04B9/109 ,  F04B53/14 ,  F04B23/02 ,  F04B1/12 ,  F04B9/117

摘要： A hydraulic piston pump includes a reciprocal piston disposed in a blind housing bore of a piston housing to generate a pumping action. To accommodate the piston, a piston cartridge is installed in each of the housing bores. The piston cartridge includes a piston sleeve having an inner sleeve periphery, a first outer sleeve periphery, and a second outer sleeve periphery. The inner sleeve periphery is configured to establish sliding contact with the piston. The first outer sleeve periphery has a first outer sleeve diameter that is larger than a second outer sleeve diameter of the second outer sleeve periphery. To seal against the blind housing bore, a liner cap having a cylindrical liner wall and an axial liner cover is disposed over the first outer sleeve periphery. The axial liner cover abuts a housing bore ceiling of the blind housing bore and can receive hydraulic fluid there through.

公开(公告)号：US10060421B2

公开(公告)日：2018-08-28

申请号：US14753585

申请日：2015-06-29

申请人： Caterpillar Inc.

发明人： 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分类号： F04B9/117 ,  F04B23/02 ,  F04B23/06 ,  F04B37/08 ,  F04B49/06 ,  F04B15/08

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

摘要： 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.

公开(公告)号：US09945364B2

公开(公告)日：2018-04-17

申请号：US14798058

申请日：2015-07-13

申请人： Caterpillar Inc.

发明人： Joshua W. Steffen ,  Dana R. Coldren

IPC分类号： F04B15/08 ,  F04B9/113 ,  F04B53/04 ,  F04B9/117

CPC分类号： F04B15/08 ,  F04B9/113 ,  F04B9/1172 ,  F04B53/04 ,  F04B2015/081

摘要： A pump has a pump body and at least first and second pumping elements, each pumping element including a piston defining a head-end and a rod-end. The pump receives a pressurized fluid at an inlet, and returns fluid through a drain outlet. A hydraulic distributor operates to fluidly connect the head end of an extending piston to the pressurized fluid, and the rod end of the extending piston to the drain outlet. The hydraulic distributor further connects the rod-end of a retracting piston to the drain outlet, and the rod-end of one or more retracting pistons to the drain or to a return pressure, which is lower than an extending pressure.

公开(公告)号：US09592891B2

公开(公告)日：2017-03-14

申请号：US13995288

申请日：2011-12-16

申请人： Akira Kimura ,  Teruo Kishimoto ,  Takahiro Toyoura

发明人： Akira Kimura ,  Teruo Kishimoto ,  Takahiro Toyoura

IPC分类号： B63B39/02 ,  F04B43/067 ,  F04B43/073 ,  B63B39/03 ,  B63B43/06 ,  F04B9/109 ,  F04B9/117 ,  F04B43/12 ,  F04B15/02

CPC分类号： B63B39/02 ,  B63B39/03 ,  B63B43/06 ,  F04B9/109 ,  F04B9/117 ,  F04B15/02 ,  F04B43/067 ,  F04B43/073 ,  F04B43/1253 ,  F04B43/1261 ,  Y10T137/86187

摘要： The present invention includes: first and second tanks and each configured to store a fluid containing fine powder; a communication pipe through which the first and second tanks and communicate with each other; and a transfer portion configured to transfer the fluid stored in a desired one of the first and second tanks to the other tank. Each of the tanks and includes a first chamber and a second chamber that are separated by a deformable dividing wall. Each of the first chambers stores an incompressible fluid, and each of the second chambers stores the fluid having higher specific gravity and viscosity than the incompressible fluid. The second chambers of the first and second tanks communicate with each other through the communication pipe. When the incompressible fluid is supplied to the desired first chamber, the transfer portion can discharge the incompressible fluid from the other first chamber.

摘要翻译： 本发明包括：第一和第二罐，并且每个被配置为存储含有细粉末的流体; 连通管，第一和第二罐通过该连通管道彼此连通; 以及转移部分，其构造成将存储在所述第一和第二罐中期望的一个中的流体转移到另一罐。 每个罐包括由可变形的分隔壁分开的第一室和第二室。 每个第一室存储不可压缩流体，并且每个第二室存储具有比不可压缩流体更高的比重和粘度的流体。 第一和第二储罐的第二室通过连通管彼此连通。 当不可压缩流体被供应到期望的第一室时，转移部分可以从不同的第一室排出不可压缩的流体。

公开(公告)号：US09587635B2

公开(公告)日：2017-03-07

申请号：US15134909

申请日：2016-04-21

申请人： Murtech, Inc.

发明人： Kenneth A. Knowles, Jr. ,  Robert C. Murtha, Jr. ,  Christina Speight

IPC分类号： F04B49/03 ,  F04B49/22 ,  F04B5/02 ,  F04B49/00 ,  F03B13/20 ,  F15B7/02 ,  C02F1/44 ,  F03B13/14 ,  F04B9/117 ,  F04B19/22 ,  F04B23/06 ,  F04B53/10 ,  F04B53/14 ,  F04B53/16

CPC分类号： F04B49/007 ,  C02F1/441 ,  C02F2103/08 ,  C02F2201/009 ,  C02F2209/40 ,  F03B13/14 ,  F03B13/20 ,  F04B5/02 ,  F04B9/117 ,  F04B11/0033 ,  F04B19/22 ,  F04B23/06 ,  F04B49/03 ,  F04B49/22 ,  F04B49/225 ,  F04B53/10 ,  F04B53/144 ,  F04B53/16 ,  F15B7/02 ,  Y02A20/144 ,  Y02E10/30 ,  Y02E10/38

摘要： A bi-directional pump system that can be configured for a plurality of operating modes. The bi-directional pump system includes a plurality of bi-directional pumps each having their own valving system that are connected to a common high pressure manifold, a low pressure manifold and a suction manifold. Via the respective valve systems, each pump can be configured into: (1) a single-acting pumping mode; (2) a double-acting pumping mode; (3) an inactive free motion mode; and (4) an inactive rigid mode. One exemplary application of the bi-directional pump system is on an articulated wave energy conversion system that consists of three floating barges: a front barge, a center barge and a rear barge where the front barge and center barge are hingedly connected as are the center barge and the rear barge. A first set of the bi-directional pumps span the first hinge connection and the second set of bi-directional pumps span the second hinge connection. The bi-directional pump system intakes sea water and, using wave energy, outputs a high pressure flow of sea water for water desalination and/or for driving electrical generators.

摘要翻译： 可以配置为多个操作模式的双向泵系统。 双向泵系统包括多个双向泵，每个双向泵具有连接到公共高压歧管，低压歧管和吸入歧管的其自身的阀门系统。 通过相应的阀门系统，每个泵可配置成：（1）单作用泵送模式; （2）双作用泵送模式; （3）非活动自由运动模式; 和（4）无效刚性模式。 双向泵系统的一个示例性应用是关节式波浪能量转换系统，其由三艘浮式驳船组成：前驳船，中驳船和后驳船，其中前驳船和中驳驳船以中心方式铰接连接 驳船和后驳船。 第一组双向泵跨越第一铰链连接，第二组双向泵横跨第二铰链连接。 双向泵系统进入海水，并使用波浪能量输出高压海水来进行海水淡化和/或驱动发电机。

公开(公告)号：US20160177932A1

公开(公告)日：2016-06-23

申请号：US14979112

申请日：2015-12-22

申请人： Werner Rogg

发明人： Werner Rogg

IPC分类号： F04B17/04 ,  F04B53/14 ,  F04B35/04 ,  F04B27/00 ,  F04B1/02 ,  F04B9/117

摘要： The invention relates to a pumping system (1), in particular, for transporting gaseous and/or liquid media having two parallel hydraulically operated oscillating piston pumps (2, 3) whose pistons (8) are moved by means of electromagnetic fields, whereby the electromagnetic fields are generated in field coils (10, L1, L2) by means of half-wave direct current pulse. The invention distinguishes itself by a circuit arrangement (19) that can be connected to an alternating current source having two parallel electric branches that are connected to the field coils (L1, L2) of one of the oscillating pumps (2, 3) respectively, wherein the circuit arrangement (19) is equipped in such a way that the field coils (10, L1, L2) are operated electrically out of phase so that the oscillating piston pumps (2, 3) are operated with a phase displacement of 180°. The invention further relates to a method for operating the pumping system electrically, and a circuit configuration for the pumping system and accordingly, for executing the method.

摘要翻译： 本发明涉及一种泵送系统（1），特别是用于输送具有两个平行的液压操作的振荡活塞泵（2,3）的气体和/或液体介质，其活塞（8）通过电磁场移动，由此 通过半波直流脉冲在场线圈（10，L1，L2）中产生电磁场。 本发明通过电路装置（19）来区别，电路装置（19）可以连接到具有两个平行电分支的交流电源，所述两个平行电支路分别连接到一个振荡泵（2,3）的励磁线圈（L1，L2） 其中所述电路装置（19）以这样的方式配置，使得所述励磁线圈（10，L1，L2）电异相地操作，使得所述振荡活塞泵（2,3）以180°的相位位移操作 。 本发明还涉及一种用于操作泵送系统的电气方法，以及用于泵送系统的电路配置，因此用于执行该方法。

公开(公告)号：US20050232069A1

公开(公告)日：2005-10-20

申请号：US10898879

申请日：2004-07-26

申请人： Chul Jung

发明人： Chul Jung

IPC分类号： E04G21/04 ,  B28C7/04 ,  F04B9/105 ,  F04B9/117 ,  F04B15/02

CPC分类号： F04B15/023 ,  F04B9/105 ,  F04B9/1172 ,  F04B2201/0201

摘要： The present invention relates to a concrete transfer system of a concrete pump car which comprises a pair of concrete input tubes mounted in union to a pair of communication holes punched to the inside surface of a hopper, first and second drive cylinders mounted on the same lines of the concrete input tubes for sucking and transferring the concrete by forward and backward movements of pressure pistons mounted to rod ends, an oil pressure pump for supplying the fluid to the first and second drive cylinders, a rod sensing sensor for sensing the movement of the rods of the first and second drive cylinders, a control unit for performing a predetermined control operation by receiving the sensing signal of the rod sensing sensor, an oil path change drive unit for supplying selectively the fluid with the first and second drive cylinders according to the control signal of the control unit, the concrete transfer system of the concrete pump car comprising: a first logic valve to sixth logic valves, a reverse current preventive device, and a high/low pressure selection valve.

摘要翻译： 混凝土泵车的混凝土输送系统技术领域本发明涉及一种混凝土泵车的混凝土输送系统，其包括一对混凝土输入管，该混合物输入管与一对冲压到料斗的内表面的一对连通孔并联安装，第一和第二驱动筒安装在相同的线 的混凝土输入管，用于通过安装到杆端的压力活塞的前进和后退运动来吸入和输送混凝土;油压泵，用于将流体供应到第一和第二驱动缸;杆感测传感器，用于感测 第一驱动缸和第二驱动缸的杆，用于通过接收杆感测传感器的感测信号来执行预定控制操作的控制单元，用于根据第一和第二驱动缸选择性地向第一和第二驱动缸提供流体的油路改变驱动单元 控制单元的控制信号，混凝土泵车的混凝土输送系统包括：第一逻辑阀到第六逻辑阀 ves，反向电流预防装置和高/低压选择阀。