公开(公告)号：US12123434B2

公开(公告)日：2024-10-22

申请号：US17602291

申请日：2019-04-08

Applicant: Volvo Construction Equipment AB ,  Norrhydro Oy

Inventor： Mika Sahlman ,  Jussi Mäkitalo ,  Ari Lappalainen ,  Peter Stambro

IPC: F15B11/04 ,  F15B1/02

CPC classification number: F15B11/04 ,  F15B1/024 ,  F15B2201/51 ,  F15B2201/515 ,  F15B2211/20546 ,  F15B2211/212 ,  F15B2211/625 ,  F15B2211/6309 ,  F15B2211/6346 ,  F15B2211/6654 ,  F15B2211/6656 ,  F15B2211/75 ,  F15B2211/763

Abstract: A hydraulic system includes: a high-pressure line; a pump configured to supply pressurized hydraulic fluid to the high-pressure line; a variable displacement hydraulic machine connected by a fluid connection to the high-pressure line for rotationally driving the rotatable load; an electronic control unit; an energy storing device connected to the high-pressure line and configured to communicate with the high-pressure line by receiving energy from the high-pressure line and/or supplying energy to the high-pressure line; and a first detector configured to detect the amount of energy stored in the energy storing device and to transmit a signal indicating said amount of energy stored to the electronic control unit. The electronic control unit is configured to control the volume flow intake of the variable displacement hydraulic machine dependent on a target output of the variable displacement hydraulic machine and on the detected amount of energy stored in the energy storing device.

公开(公告)号：US11674529B2

公开(公告)日：2023-06-13

申请号：US16604822

申请日：2018-03-26

Applicant: Robert Bosch GmbH

Inventor： Juergen Schneider ,  Alexandre Orth ,  Gofttfried Hendrix

IPC: F15B1/04 ,  F15B1/10 ,  F15B1/24 ,  F15B1/16

CPC classification number: F15B1/04 ,  F15B1/10 ,  F15B1/165 ,  F15B1/24 ,  F15B2201/21 ,  F15B2201/31 ,  F15B2201/312 ,  F15B2201/3151 ,  F15B2201/3152 ,  F15B2201/32 ,  F15B2201/405 ,  F15B2201/515

Abstract: A system filled with a fluid, designed for underwater applications, in which the interior of a housing and/or tank forms a fluid region which is sealed with respect to the surrounding seawater region, includes at least one hydraulic pressure compensation device, which at least raises the pressure level of the fluid region to the ambient pressure prevailing in the seawater region. The pressure compensation device is constructed in two stages in such a way that at least one store having a flexible wall region and at least one piston store having a displaceable piston are arranged in series. The use of the pressure compensation device to pressurize at least one housing filled with fluid for a hydraulic actuating shaft is also proposed.

公开(公告)号：US09574582B2

公开(公告)日：2017-02-21

申请号：US13868923

申请日：2013-04-23

Applicant: Fluid Ride, LTD.

Inventor： Jeremy Richard Edmonson ,  Joshua Coombs

IPC: F15B15/00 ,  F15B1/26 ,  F15B21/00 ,  F15B21/04 ,  F15B21/06

CPC classification number: F15B15/00 ,  F15B1/26 ,  F15B21/005 ,  F15B21/041 ,  F15B21/042 ,  F15B21/06 ,  F15B2201/515 ,  F15B2211/20592 ,  F15B2211/611 ,  F15B2211/613 ,  F15B2211/625 ,  F15B2211/6658

Abstract: A fluid management system includes a hydraulic main pump fluidly connected to a load, an accumulator fluidly connected to the hydraulic main pump, a secondary pump, a fluid preparation system fluidly connected between an outlet of the secondary pump and an inlet of the hydraulic main pump, a reservoir, and a valve system fluidly connecting the reservoir, an outlet of the hydraulic main pump, and the secondary pump inlet. The system is at least operable between a run mode, wherein the secondary pump and accumulator cooperatively maintain the pressure within the hydraulic main pump, and a charging mode, wherein the secondary pump pumps fluid into the accumulator until a threshold volume is reached.

Abstract translation: 流体管理系统包括流体连接到负载的液压主泵，与液压主泵流体连接的蓄能器，次级泵，流体连接在二次泵的出口和液压主泵的入口之间的流体制备系统 ，储存器以及流体连接储存器，液压主泵的出口和次级泵入口的阀门系统。 该系统至少在运行模式之间可操作，其中辅助泵和蓄能器协调地维持液压主泵内的压力，以及充电模式，其中辅助泵将流体泵送到蓄能器中直到达到阈值体积。

公开(公告)号：US09556995B2

公开(公告)日：2017-01-31

申请号：US14434409

申请日：2013-10-14

Applicant: WATER POWERED TECHNOLOGIES LIMITED

Inventor： Frederick Philip Selwyn

IPC: F16L55/04 ,  F16L55/053 ,  F15B1/08 ,  F04B11/00 ,  F04B43/02

CPC classification number: F16L55/053 ,  F04B11/0008 ,  F04B11/0033 ,  F04B43/02 ,  F15B1/08 ,  F15B2201/205 ,  F15B2201/21 ,  F15B2201/3151 ,  F15B2201/4155 ,  F15B2201/515

Abstract: A gas spring accumulator comprising:—a housing (2, 3) provided with an inlet (20); and—a flexible diaphragm (4) dividing the interior of the housing into a working chamber (7) which is exposed to system pressure via the inlet, and a gas chamber (6); characterised in that the housing includes a diaphragm element (4) having one side exposed to system pressure via the inlet (20) and an opposite side exposed to a further chamber (13), a first non-return valve (17) arranged to admit atmospheric gas into the further chamber (13), and a second non-return valve (29) arranged to admit gas from the further chamber (13) into the gas chamber (6).

Abstract translation: 一种气弹簧蓄能器，包括：一个设置有入口（20）的壳体（2,3）; 以及 - 将所述壳体的内部分成经由所述入口暴露于系统压力的工作室（7）的柔性隔膜（4）和气室（6）; 其特征在于，所述壳体包括隔膜元件（4），所述隔膜元件（4）具有经由所述入口（20）暴露于系统压力的一侧和暴露于另外的室（13）的相对侧，第一止回阀（17） 大气气体进入另外的室（13），以及第二止回阀（29），其布置成将气体从另外的室（13）吸入气室（6）。

公开(公告)号：US09422946B2

公开(公告)日：2016-08-23

申请号：US14424592

申请日：2013-08-27

Applicant: MHWIRTH AS

Inventor： Ketil André Arntzen

IPC: F16L55/04 ,  F15B1/04 ,  H01Q1/22 ,  F15B1/24 ,  F15B13/16 ,  G01S13/88 ,  F15B15/28

CPC classification number: F15B1/04 ,  F15B1/24 ,  F15B13/16 ,  F15B15/2869 ,  F15B2201/205 ,  F15B2201/31 ,  F15B2201/415 ,  F15B2201/515 ,  G01S13/88 ,  H01Q1/225

Abstract: A replaceable antenna assembly for use with a piston accumulator configured for supplying fluid to a hydraulic cylinder is provided. The antenna assembly includes a hollow manifold for flow of fluid and an antenna connected into or onto the manifold for emitting and receiving electromagnetic waves. The hollow manifold is connectable to and configured to be in fluid communication with both the piston accumulator at one end and a pressure line at the other end. The pressure line is connectable to an external high pressure gas bank. The antenna assembly further includes at least one first bore for transferring signals to and from the antenna and at least two fluid channels symmetrically displaced around the circumference of the antenna, thereby ensuring that most of, or all, fluid flows on the radial outside of the antenna during use.

Abstract translation: 提供了一种用于与构造成用于向液压缸供应流体的活塞储存器一起使用的可更换天线组件。 天线组件包括用于流体流动的中空歧管和连接到歧管中或其上的用于发射和接收电磁波的天线。 中空歧管可连接并且构造成与一端的活塞蓄能器和另一端的压力管线流体连通。 压力线可连接到外部高压气体组。 天线组件还包括用于将信号传送到天线和从天线传送信号的至少一个第一孔和围绕天线的圆周对称移位的至少两个流体通道，从而确保在天线的径向外侧上的大部分或全部流体流动 使用天线。

公开(公告)号：US20160123785A1

公开(公告)日：2016-05-05

申请号：US14528886

申请日：2014-10-30

Applicant: Cameron International Corporation

Inventor： EDWARD C. GAUDE

IPC: G01F11/02 ,  G01D5/20 ,  E21B33/064 ,  G01F15/06 ,  F15B1/24 ,  E21B33/035

CPC classification number: G01D5/204 ,  E21B17/01 ,  E21B33/0355 ,  E21B33/064 ,  F15B1/24 ,  F15B2201/31 ,  F15B2201/3153 ,  F15B2201/405 ,  F15B2201/4053 ,  F15B2201/515 ,  G01D5/2291 ,  G01F22/00

Abstract: A system for determining the location of a movable element within a container is provided in which a linear variable differential transformer (“LVDT”) is formed with the container and the movable element therein. The LVDT includes a coil assembly including a primary or excitation winding, a secondary or output winding, and a movable element or core that is magnetically permeable. Measurement of an output signals allows for precise determination of the movable element location relative to the container. The system can be utilized to determine fluid volumes in accumulators used for controlling subsea equipment by monitoring the location of a movable element, e.g., a piston, within a hydraulic fluid accumulator.

Abstract translation: 提供了一种用于确定容器内的可移动元件的位置的系统，其中在容器和可移动元件中形成有线性可变差动变压器（“LVDT”）。 LVDT包括线圈组件，其包括初级或激励绕组，次级或输出绕组以及可磁化的可移动元件或芯。 输出信号的测量允许相对于容器精确地确定可移动元件的位置。 该系统可用于通过监测液压流体蓄液器内的可移动元件（例如活塞）的位置来确定用于控制海底设备的蓄能器中的流体体积。

公开(公告)号：US20150267854A1

公开(公告)日：2015-09-24

申请号：US14434409

申请日：2013-10-14

Applicant: WATER POWERED TECHNOLOGIES LIMITED

Inventor： Frederick Philip Selwyn

IPC: F16L55/053 ,  F15B1/08

CPC classification number: F16L55/053 ,  F04B11/0008 ,  F04B11/0033 ,  F04B43/02 ,  F15B1/08 ,  F15B2201/205 ,  F15B2201/21 ,  F15B2201/3151 ,  F15B2201/4155 ,  F15B2201/515

Abstract: A gas spring accumulator comprising:—a housing (2, 3) provided with an inlet (20); and—a flexible diaphragm (4) dividing the interior of the housing into a working chamber (7) which is exposed to system pressure via the inlet, and a gas chamber (6); characterised in that the housing includes a diaphragm element (4) having one side exposed to system pressure via the inlet (20) and an opposite side exposed to a further chamber (13), a first non-return valve (17) arranged to admit atmospheric gas into the further chamber (13), and a second non-return valve (29) arranged to admit gas from the further chamber (13) into the gas chamber (6).

Abstract translation: 一种气弹簧蓄能器，包括：一个设置有入口（20）的壳体（2,3）; 以及 - 将所述壳体的内部分成经由所述入口暴露于系统压力的工作室（7）的柔性隔膜（4）和气室（6）; 其特征在于，所述壳体包括隔膜元件（4），所述隔膜元件（4）具有经由所述入口（20）暴露于系统压力的一侧和暴露于另外的室（13）的相对侧，第一止回阀（17） 大气气体进入另外的室（13），以及第二止回阀（29），其布置成将气体从另外的室（13）吸入气室（6）。

公开(公告)号：US08020587B2

公开(公告)日：2011-09-20

申请号：US12156734

申请日：2008-06-04

Applicant: Charles L. Gray, Jr.

Inventor： Charles L. Gray, Jr.

IPC: F16L55/04

CPC classification number: F15B1/24 ,  F15B1/024 ,  F15B2201/205 ,  F15B2201/312 ,  F15B2201/3158 ,  F15B2201/4053 ,  F15B2201/411 ,  F15B2201/515

Abstract: A piston-in-sleeve accumulator includes a cleaning element positioned on the piston and configured to remove and prevent debris from lodging between the piston and a cylindrical nonpermeable sleeve within which the piston slides. A seal on the piston is positioned to engage an opposing surface in the event of a leak, and thereby prevent the possibility of a complete drainage of pressurized fluid from occurring through the accumulator's fluid port. A position contactor switch is further provided to signal position of the piston within the accumulator.

Abstract translation: 活塞套筒蓄能器包括定位在活塞上并被构造成去除并防止在活塞和活塞滑动的圆柱形不可渗透套筒之间的碎屑的清洁元件。 活塞上的密封件定位成在泄漏的情况下与相对的表面接合，从而防止加压流体完全排出通过蓄能器的流体端口而发生的可能性。 进一步提供一位置接触器开关，用于指示活塞在蓄能器内的位置。

公开(公告)号：US20090095366A1

公开(公告)日：2009-04-16

申请号：US11974559

申请日：2007-10-15

Applicant: Charles L. Gray, JR.

Inventor： Charles L. Gray, JR.

IPC: F15B1/04 ,  B21D51/16 ,  F16L55/04

CPC classification number: F15B1/165 ,  F15B1/18 ,  F15B2201/205 ,  F15B2201/3152 ,  F15B2201/3155 ,  F15B2201/43 ,  F15B2201/515 ,  Y10T29/49394

Abstract: A bladder for a high pressure accumulator includes a metal foil layer adhered to the inside of a rubber bladder with a paint-on adhesive. A position contactor switch is further provided to signal position of the bladder within the accumulator and thereby prevent an undesired shut-off.

Abstract translation: 用于高压蓄能器的气囊包括用涂料粘合剂粘附到橡胶囊内部的金属箔层。 进一步提供一位置接触器开关来使蓄能器内胆囊的位置信号发生，从而防止不期望的关闭。

公开(公告)号：US20060213365A1

公开(公告)日：2006-09-28

申请号：US10548469

申请日：2004-01-22

Applicant: Walter Dorr

Inventor： Walter Dorr

IPC: F01B31/12

CPC classification number: F15B1/24 ,  F15B2201/205 ,  F15B2201/312 ,  F15B2201/3158 ,  F15B2201/41 ,  F15B2201/4155 ,  F15B2201/515

Abstract: The invention relates to a hydraulic accumulator comprising: a) an accumulator housing (1) consisting of a non-magnetisable material and defining an axial direction of the housing; b) a separating element (9) that can be axially displaced in the accumulator housing (1) and separates two working chambers (5, 7) from each other in the accumulator housing (1); c) a field-generating magnetic configuration (29) arranged on the separating element; and d) a series of magnetic field sensors (35) which are arranged on the outer side of the accumulator housing (1), extend along the path of the axial movement of the separating element (9) and react to the field of the magnetic configuration (29) on the separating element (9), in order to characterise the position thereof along the series of magnetic field sensors (35).

Abstract translation: 本发明涉及一种液压蓄能器，包括：a）蓄积器壳体（1），其由不可磁化的材料构成并限定所述壳体的轴向; b）分离元件（9），其可以在所述蓄能器壳体（1）中轴向移位并且在所述蓄能器壳体（1）中分离两个工作室（5,7）; c）设置在所述分离元件上的场产生磁性构造（29）; 和d）布置在蓄能器壳体（1）的外侧上的一系列磁场传感器（35）沿着分离元件（9）的轴向运动的路径延伸并且响应于磁场 在分离元件（9）上的配置（29），以便沿着一系列磁场传感器（35）表征其位置。