公开(公告)号：EP2438342A4

公开(公告)日：2014-03-05

申请号：EP10784024

申请日：2010-06-02

Applicant: CONTROL PRODUCTS INC

Inventor： GLASSON RICHARD O ,  KULKARNI KEDAR D

IPC: F16L55/04 ,  G01M99/00

CPC classification number: F15B1/08 ,  F15B1/103 ,  F15B1/165 ,  F15B1/24 ,  F15B2201/205 ,  F15B2201/31 ,  F15B2201/3152 ,  F15B2201/515

Abstract: A linear position sensor is installed inside the pressure vessel of a hydraulic accumulator to provide positional information for the moveable element inside of the accumulator. The positional information provides accumulator charge condition data for use in hydraulic systems such as vehicular regenerative braking systems and generalized industrial accumulator systems. Charge condition data allows for optimized control and operation of the hydraulic system.

Abstract translation: 线性位置传感器安装在液压蓄压器的压力容器内部，以提供蓄能器内部的可移动元件的位置信息。 位置信息提供用于诸如车辆再生制动系统和广义工业蓄能器系统的液压系统中的蓄能器充电条件数据。 充电条件数据允许液压系统的优化控制和操作。

公开(公告)号：EP2438342A1

公开(公告)日：2012-04-11

申请号：EP10784024.1

申请日：2010-06-02

Applicant: Control Products Inc.

Inventor： GLASSON, Richard, O. ,  KULKARNI, Kedar, D.

IPC: F16L55/04

CPC classification number: F15B1/08 ,  F15B1/103 ,  F15B1/165 ,  F15B1/24 ,  F15B2201/205 ,  F15B2201/31 ,  F15B2201/3152 ,  F15B2201/515

Abstract: A linear position sensor is installed inside the pressure vessel of a hydraulic accumulator to provide positional information for the moveable element inside of the accumulator. The positional information provides accumulator charge condition data for use in hydraulic systems such as vehicular regenerative braking systems and generalized industrial accumulator systems. Charge condition data allows for optimized control and operation of the hydraulic system.

公开(公告)号：EP2175142A1

公开(公告)日：2010-04-14

申请号：EP08290950.8

申请日：2008-10-08

Applicant: Eaton SAS

Inventor： Da Costa, Arlindo

IPC: F15B1/08

CPC classification number: F15B1/08 ,  B64C25/46 ,  F15B1/10 ,  F15B2201/205 ,  F15B2201/31 ,  F15B2201/515

Abstract: The invention provides a reliable means for measuring the available fluid volume in a hydraulic accumulator.
The displaceable part (5) of a piston (4) in an accumulator (1), which separates the fluid volume (2b) from the gas volume (2a), is connected to a wire (6) that runs through the fluid volume and exits to the outside of the accumulator through a sealed opening (9) close to the hydraulic valve (3).
From there, the wire is led over pulleys (10, 11) to run trough a longitudinal hollow member (LVDT) that is attached to the accumulator (1), and carries a metallic core member (8), whose position can electrically be monitored between two end points, as a result of the change of the magnetic field produced by electric coils surrounding the trajectory of the core member as known from linear variable differential transformers (LVTD), in order to give an accurate reading of the position of the piston (4), which is a function of the fluid volume present within the accumulator (1).

Abstract translation: 本发明提供了用于测量液压蓄能器中的可用流体体积的可靠装置。 将流体体积（2b）与气体体积（2a）分离的蓄能器（1）中的活塞（4）的可移动部分（5）连接到穿过流体体积的导线（6） 通过靠近液压阀（3）的密封开口（9）离开蓄能器外部。 从那里，电线被引导到皮带轮（10,11）上，以通过连接到蓄能器（1）的纵向中空构件（LVDT）运行，并且携带金属芯构件（8），其位置可以被电监控 在两个端点之间，作为由线性可变差分变压器（LVTD）已知的围绕磁芯构件的轨迹的电线圈产生的磁场的变化的结果，以便准确地读取活塞的位置 （4），其是存在于蓄能器（1）内的流体体积的函数。

公开(公告)号：EP1601879B1

公开(公告)日：2008-03-05

申请号：EP04704192.6

申请日：2004-01-22

Applicant: HYDAC TECHNOLOGY GMBH

Inventor： DORR, Walter

IPC: F15B1/24

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).

公开(公告)号：EP0585280A1

公开(公告)日：1994-03-09

申请号：EP92909795.0

申请日：1992-05-13

Applicant: HYDAC TECHNOLOGY GMBH

Inventor： PETER, Günter ,  WEBER, Norbert

IPC: F15B1 ,  G01L7

CPC classification number: F15B1/18 ,  F15B1/08 ,  F15B2201/205 ,  F15B2201/3152 ,  F15B2201/411 ,  F15B2201/43 ,  F15B2201/51 ,  F15B2201/515

Abstract: L'invention concerne un procédé de mesure de la pression d'un gaz dans un accumulateur de gaz sous pression auquel est branché un circuit de fluide, et dans lequel le gaz est séparé d'un fluide par un élément de séparation. Lorsque l'élément de séparation (12) est dans une position prédéterminée, la pression gazeuse qui lui est associée en cette position est mesurée au moyen d'un capteur de pression (40) monté du côté du fluide. Cela permet d'avoir une vérification de la prétension du gaz dans les réservoirs sous pression, sans nuire à la disponibilité de mise en service du circuit de fluide associé à chacun des réservoirs. L'invention concerne en outre un dispositif pour la mise en oeuvre de ce procédé.

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。