公开(公告)号：US4243856A

公开(公告)日：1981-01-06

申请号：US12447

申请日：1979-02-15

Applicant: Jean L. Gratzmuller

Inventor： Jean L. Gratzmuller

IPC: F15B1/08 ,  F15B1/24 ,  H01H35/38

CPC classification number: F15B1/08 ,  F15B1/24 ,  F15B2201/205 ,  F15B2201/312 ,  F15B2201/41 ,  F15B2201/515

Abstract: In the gas shortage detection device of a piston-type hydropneumatic accumulator, a control rod slidably mounted in the cylinder head on the gas side is displaced under the action of the thrust exerted by the piston when this latter comes closer to the cylinder head than a predetermined distance. A flexible motion-reversal coupling element such as an inextensible cord which works in traction and has a predetermined dead range of travel is placed between the piston and the sliding rod.Correct performance of the detection device can thus be checked by partial draining of the oil compartment, the detection device being triggered into operation when the piston comes close to the bottom end of the cylinder.

Abstract translation: 在活塞式液压气动蓄能器的气体短缺检测装置中，可滑动地安装在气体侧的气缸盖中的控制杆在活塞的作用下随着活塞的作用而移动，而后者比气缸盖更靠近气缸盖 预定距离。 柔性运动反转耦合元件，例如在牵引中工作并且具有预定死区行程的不可伸展的绳索被放置在活塞和滑动杆之间。 因此可以通过油室的部分排放来检查检测装置的正确性能，当活塞靠近气缸的底端时，检测装置被触发进行操作。

公开(公告)号：US3965317A

公开(公告)日：1976-06-22

申请号：US485323

申请日：1974-07-03

Applicant: Jean Louis Gratzmuller

Inventor： Jean Louis Gratzmuller

IPC: F15B1/033 ,  F15B1/24 ,  G01F23/18 ,  H01H35/38

CPC classification number: G01F23/18 ,  F15B1/033 ,  F15B1/24 ,  F15B2201/205 ,  F15B2201/312 ,  F15B2201/411 ,  F15B2201/4155 ,  F15B2201/515

Abstract: A hydro-pneumatic accumulator of the type in which a piston slidable within a cylinder separates a liquid and a gas under pressure, is provided with an end closure of a non-magnetic material within which closure is provided a magnetically actuated switch. Movement of the piston causes a permanent magnet to be moved relative to the switch whereby movement of the magnet into the actuating range of the switch causes the switch to be actuated and an indication of the level of the liquid in the accumulator to be provided.

Abstract translation: 一种液压气动蓄能器，其中可在气缸内滑动的活塞将压力下的液体和气体分离，设置有非磁性材料的封闭件，在该封闭件内设置有磁力驱动的开关。 活塞的移动导致永磁体相对于开关移动，由此磁体进入开关的致动范围的动作导致开关被致动并且提供蓄能器中液体的液面的指示。

公开(公告)号：US09677573B2

公开(公告)日：2017-06-13

申请号：US14181185

申请日：2014-02-14

Applicant: Cameron International Corporation

Inventor： Andrew Jaffrey

IPC: F15B15/28 ,  F15B1/08 ,  E21B33/06

CPC classification number: F15B1/08 ,  E21B33/0355 ,  E21B33/06 ,  E21B33/064 ,  F15B15/2815 ,  F15B2201/205 ,  F15B2201/31 ,  F15B2201/3153 ,  F15B2201/515

Abstract: A system for determining the location of a piston within an accumulator is provided in which a short circuit is created between elements in the accumulator and the piston which is movable within the accumulator. As the piston moves along the longitudinal axis of the accumulator, the circuit's electrical characteristics (e.g., voltage, resistance, current) vary in accordance with the length of the circuit. Measurement of these electrical characteristics allows for precise determination of the piston location relative to the accumulator. In a commercial embodiment, the invention can be utilized to determine fluid volumes in an accumulator by monitoring the location of the piston. This invention overcomes prior art systems because, inter alia, it does not require electrical sensory equipment, enables remote monitoring, maintains system integrity and functions irrespective of container wall thickness.

公开(公告)号：US09652902B2

公开(公告)日：2017-05-16

申请号：US14522105

申请日：2014-10-23

Applicant: GOODRICH CORPORATION

Inventor： Amir M. Fazeli ,  Adnan Cepic ,  Susanne M. Reber

IPC: G07C5/08 ,  B64D45/00 ,  B64C25/60 ,  F15B1/24 ,  F15B19/00 ,  F15B20/00

CPC classification number: G07C5/0808 ,  B64C25/60 ,  B64D45/00 ,  B64D2045/0085 ,  F15B1/24 ,  F15B19/005 ,  F15B20/005 ,  F15B2201/50 ,  F15B2201/51 ,  F15B2201/515 ,  F15B2211/625 ,  F15B2211/7054 ,  F15B2211/857

Abstract: A method includes detecting at least one position measurement of a separator piston of a pitch trim actuator. The method includes detecting at least one pressure measurement of a gas. The method includes detecting at least one temperature measurement of the gas. The method includes storing at least one position value based on the at least one position measurement of the separator piston, at least one pressure value based on the at least one pressure measurement of the gas and at least one temperature value based on the at least one temperature measurement of the gas. The method includes determining a volume of an oil within an oil chamber of the pitch trim actuator and a pressure of the gas within the gas chamber of the pitch trim actuator, based on the at least one position value, the at least one pressure value and the at least one temperature value.

公开(公告)号：US20150247510A1

公开(公告)日：2015-09-03

申请号：US14424592

申请日：2013-08-27

Applicant: Aker MH AS

Inventor： Ketil André Arntzen

IPC: F15B1/04 ,  G01S13/88 ,  F15B13/16

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 (1) for use with a piston accumulator (2) configured for supplying fluid to a hydraulic cylinder, the antenna assembly (1) comprises; a hollow manifold (3) for flow of fluid, and an antenna (4) connected into or onto the manifold (3) for emitting and receiving electromagnetic waves, wherein the hollow manifold (3) is connectable to and configured to be in fluid communication with both the piston accumulator (2) at one end and a pressure line (5) at the other end, said pressure line (5) being connectable to an external high pressure gas bank, and wherein the antenna assembly (1) further comprises; at least one first bore (6) for transferring signals to and from the antenna (4), and at least two fluid channels (7) symmetrically displaced around the circumference of the antenna, thereby ensuring that most of or all, fluid flows on the radial outside of the antenna (4) during use.

Abstract translation: 一种可更换的天线组件（1），用于与被配置为向液压缸供应流体的活塞蓄能器（2）一起使用，所述天线组件（1）包括： 用于流体流动的中空歧管（3）和连接到歧管中或上的歧管（3）上用于发射和接收电磁波的天线（4），其中中空歧管（3）可连接并被构造成流体连通 一端的活塞蓄能器（2）和另一端的压力管线（5），所述压力管线（5）可连接到外部高压气体储存器，并且其中天线组件（1）还包括： 用于将信号传送到天线（4）和从天线（4）传送信号的至少一个第一孔（6）和至少两个流体通道（7），其围绕天线的圆周对称地移位，从而确保大部分或全部流体在 在天线（4）的径向外侧使用。

公开(公告)号：US20150212220A1

公开(公告)日：2015-07-30

申请号：US14424264

申请日：2013-08-27

Applicant: Sensorlink AS

Inventor： Øystein Baltzersen

IPC: G01V1/00 ,  G01D5/12

CPC classification number: G01V1/00 ,  F15B15/2861 ,  F15B15/2884 ,  F15B2201/515 ,  G01D5/12 ,  G01D5/145 ,  G01D5/48 ,  G01N2291/045 ,  G01S15/06 ,  G01S15/876 ,  G01S15/88

Abstract: Method and device for determining the position of a piston in a cylinder comprising use of both ultrasound transducer and magnetometer for transmitting and receiving signals that are interpreted in a signal processor for determining the position of the piston.

Abstract translation: 用于确定气缸中的活塞位置的方法和装置，包括使用超声换能器和磁力计两者来发射和接收在信号处理器中解释的用于确定活塞位置的信号。

公开(公告)号：US20130276439A1

公开(公告)日：2013-10-24

申请号：US13868923

申请日：2013-04-23

Applicant: FLUID RIDE, LTD.

Inventor： Jeremy Richard Edmonson ,  Joshua Coombs

IPC: F15B15/00

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：US20130262010A1

公开(公告)日：2013-10-03

申请号：US13855312

申请日：2013-04-02

Applicant: MACRO SYSTEMANALYSE UND ENTWICKLUNG GMBH

Inventor： Martin Reuter

IPC: G01B21/16

CPC classification number: G01B21/16 ,  F15B1/08 ,  F15B1/24 ,  F15B2201/31 ,  F15B2201/415 ,  F15B2201/42 ,  F15B2201/505 ,  F15B2201/51 ,  F15B2201/515 ,  F15B2211/6343

Abstract: An apparatus for determining the position of a movable separation element which is arranged within an accumulator as a separator between a gas space and a fluid space, wherein the determination apparatus comprises at least one pressure sensor for the detection of pressure data, at least one ultrasonic sensor for the detection of ultrasonic data and at least one calculation unit for the evaluation of the data with the aid of which determination apparatus the position of the separation element can be determined

Abstract translation: 一种用于确定作为气体空间与流体空间之间的分离器而设置在蓄能器内的可动分离元件的位置的装置，其中所述确定装置包括用于检测压力数据的至少一个压力传感器，至少一个超声波 用于检测超声波数据的传感器和至少一个用于评估数据的计算单元，借助于哪个确定装置可以确定分离元件的位置

公开(公告)号：US08146417B2

公开(公告)日：2012-04-03

申请号：US12792396

申请日：2010-06-02

Applicant: Richard O. Glasson ,  Kedar D Kulkarni

Inventor： Richard O. Glasson ,  Kedar D Kulkarni

IPC: G01L7/00

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能器的压力容器内部，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状态数据。 充电条件数据可以优化液压系统的控制和操作。

公开(公告)号：US20110067565A1

公开(公告)日：2011-03-24

申请号：US12804206

申请日：2010-07-16

Applicant: Klaus Manfred Steinich

Inventor： Klaus Manfred Steinich

IPC: F01B31/12 ,  G01B7/30 ,  G01F23/38

CPC classification number: G01D5/145 ,  F15B1/24 ,  F15B2201/31 ,  F15B2201/515

Abstract: In order to detect the position of a piston, e.g. in a piston accumulator, without a run out of electrical cables etc. from the pressure loaded cylinder, the mechanical portion of the band sensor is disposed in the interior of the piston accumulator and a magnet driven in rotation by the winding drum is scanned contactless through a magnetically permeable wall portion from the outside through an angle sensor with respect to a rotation position of the magnet.

Abstract translation: 为了检测活塞的位置，例如， 在活塞蓄能器中，没有从压力负载的气缸中脱出电缆等，带传感器的机械部分设置在活塞蓄能器的内部，并且通过卷绕鼓旋转驱动的磁体被无接触地扫过 相对于磁体的旋转位置，从外部通过角度传感器的导磁壁部分。