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。

公开(公告)号：US20080314467A1

公开(公告)日：2008-12-25

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：US20060075892A1

公开(公告)日：2006-04-13

申请号：US10542781

申请日：2004-01-17

Applicant: Walter Dorr

Inventor： Walter Dorr

IPC: F01B31/12

CPC classification number: F15B1/08 ,  F15B1/24 ,  F15B15/2807 ,  F15B2201/205 ,  F15B2201/312 ,  F15B2201/3158 ,  F15B2201/515

Abstract: A piston-type accumulator comprises: a) an accumulator housing provided in the form of a cylinder tube (1) made of magnetizable material, which defines an axial direction of the housing; b) a piston (3), which can be axially displaced over a stroke path inside the cylinder tube (1) and which forms a moving separating element that, inside the accumulator housing, separates two working spaces (7 and 9) from one another; c) a magnet arrangement (29, 31, 35), which is placed on the piston (3) and which generates a field on the wall of the cylinder tube (1), and; d) a magnetic field sensor device, which is located on the exterior of the cylinder tube (1) and which has at least one Hall sensor (51). Said Hall sensor is mounted on the exterior of the cylinder tube (1) and responds to the field generated by the magnet arrangement (29, 31, 35) on the piston (3) in order to determine the position of the piston (3) along the stroke path.

Abstract translation: 一种活塞式蓄能器，包括：a）蓄能器壳体，其设置成由可磁化材料制成的气缸管（1），其限定所述壳体的轴向; b）活塞（3），其可以在气缸管（1）内的行程路径上轴向移位，并且形成移动的分离元件，其在蓄能器壳体内部将两个工作空间（7和9）彼此分开 ; c）磁体布置（29,31,35），其被放置在活塞（3）上并且在气缸管（1）的壁上产生场; d）磁场传感器装置，其位于气缸管（1）的外部并且具有至少一个霍尔传感器（51）。 所述霍尔传感器安装在气缸管（1）的外部，并响应于活塞（3）上的磁体装置（29,31,35）产生的磁场，以便确定活塞（3）的位置， 沿着行程路径。