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    Method of detecting position of piston in pressure accumulator
    133.
    发明专利
    Method of detecting position of piston in pressure accumulator 失效
    检测压力蓄能器中活塞位置的方法

    公开(公告)号：JPS59175601A

    公开(公告)日：1984-10-04

    申请号：JP4600183

    申请日：1983-03-22

    Applicant: Hitachi Ltd

    Inventor： IWATA NAOHIKO ,  KIMURA TAKESHI ,  MUROBOSHI TAKANORI

    IPC: F15B1/24 ,  F15B1/02

    CPC classification number: F15B2201/31 ,  F15B2201/515

    Abstract: PURPOSE: To detect the position of a floating piston in a pressure accumulator from a remote place with high accuracy by projecting a sound wave from a vibrating detecting contact disposed on the outer casing of a cylindrical pressure accumulator to the floating piston, thereby to detect a reflection wave from the floating piston.
    CONSTITUTION: An ultrasonic detecting contact 3 is fixed to the bottom plate 1c of a cylinder of a pressure chamber B filled with operating liquid to project an ultrasonic wave on a floating piston 1d. The projection wave is reflected by the floating piston 1d to be received with the projection wave by a sound wave receiver 4 and displayed on a cathode-ray tube of a display unit 5. When gas in a pressure chamber A leaks, the floating piston 1d is moved upward, so that the sound pressure of a received wave D is lowered. Therefore, a gas leakage is detected from the lowering of the crest of an echo wave of the display unit 5.
    COPYRIGHT: (C)1984,JPO&Japio

    Abstract translation: 目的：通过将设置在圆柱形蓄压器的外壳上的振动检测触点的声波投影到浮动活塞上，通过将来自远程位置的压力蓄能器中的浮动活塞的位置高精度地检测，从而检测 来自浮动活塞的反射波。 构成：超声波检测接点3固定在填充有操作液体的压力室B的气缸的底板1c上，以在浮动活塞1d上突出超声波。 投影波被浮动活塞1d反射，由声波接收器4用投影波接收并显示在显示单元5的阴极射线管上。当压力室A中的气体泄漏时，浮动活塞1d 向上移动，使得接收波D的声压降低。 因此，从显示单元5的回波波峰的下降检测出气体泄漏。

    HYDRO-PNEUMATIC ACCUMULATOR WITH INTEGRATED NITROGEN PRECHARGE REGENERATION SYSTEM
    135.
    发明申请
    HYDRO-PNEUMATIC ACCUMULATOR WITH INTEGRATED NITROGEN PRECHARGE REGENERATION SYSTEM 审中-公开

    公开(公告)号：WO2018132399A1

    公开(公告)日：2018-07-19

    申请号：PCT/US2018/013051

    申请日：2018-01-10

    Applicant: PARKER-HANNIFIN CORPORATION

    Inventor： BERKEL, Edward ,  TOLEDO, Rafael, Alberto ,  MOSHER, William, Mark ,  BESCH, Bruce ,  KOENIGS, Kevin ,  CONNAUGHTON, David

    IPC: F15B1/08 ,  F25B43/00 ,  F15B1/033

    CPC classification number: F15B1/08 ,  F15B1/033 ,  F15B2201/50 ,  F15B2201/51 ,  F15B2201/515

    Abstract: A pressure accumulator includes an accumulator housing having first and second ports for receiving first and second pressure mediums, respectively, a movable separating element subdividing an interior of the accumulator housing into at least first and second working spaces, the first working space accommodating the first pressure medium and the second working space accommodating the second pressure medium, wherein the first port is in fluid communication with the first working space and the second port in fluid communication with the second working space. At least one sensor is operatively coupled to the first working space for measuring at least one characteristic of the first working space, and a gas generator is operative to generate a gas from ambient air, the gas generator including an outlet for outputting the generated gas, the outlet in fluid communication with the first port. A controller is operatively coupled to the at least one sensor and the gas generator, the controller configured to calculate an amount of gas in the first working space based on the at least one characteristic and upon the calculated amount of gas in the first working space being below a first threshold level, generate a command to introduce gas from the gas generator into the first working space.

    ACCUMULATOR VOLUME DETECTOR USING AN OPTICAL MEASUREMENT
    136.
    发明申请
    ACCUMULATOR VOLUME DETECTOR USING AN OPTICAL MEASUREMENT 审中-公开
    使用光学测量的累加器体积检测器

    公开(公告)号：WO2016196948A1

    公开(公告)日：2016-12-08

    申请号：PCT/US2016/035740

    申请日：2016-06-03

    Applicant: HYDRIL USA DISTRIBUTION LLC

    Inventor： BEALES, Thomas, David ,  CONNOR, Michael, James

    IPC: F15B1/24

    CPC classification number: F15B1/04 ,  E21B33/062 ,  E21B33/064 ,  E21B41/0007 ,  F15B1/022 ,  F15B1/24 ,  F15B15/2876 ,  F15B2201/31 ,  F15B2201/515 ,  G01F17/00

    Abstract: A laser piston position sensor (26) for determining the position of a piston (28) within an accumulator (20), the laser piston position sensor (26) configured to attach to an end of the accumulator (20), and the accumulator (20) having an aperture (29) in the end thereof exposing the piston (28) within the accumulator (20) to the laser piston position sensor (26), The laser piston position sensor (26) including a sensor housing (46) enclosing a cavity (48) containing a low pressure gas, and defining an opening (68) from the cavity (48) toward the accumulator (20), a laser sensor (70) positioned within the cavity (48) for emitting a laser (72) toward the piston (28) of the accumulator (20) via the opening (68) in the sensor housing (46) and the aperture (29) in the accumulator (20), and a transparent lens (58) positioned between the laser sensor (70) and the accumulator (20) to allow passage of the laser (72) from the laser sensor (70) to the piston (28), and to separate gases in the accumulator (20) from gases in the cavity (48) of the sensor housing (46).

    Abstract translation: 1.一种用于确定蓄能器（20）内的活塞（28）的位置的激光活塞位置传感器（26），所述激光活塞位置传感器（26）构造成附接到所述蓄能器（20）的一端，并且所述蓄能器 激光活塞位置传感器（26）包括一个传感器外壳（46），该传感器外壳（46）包围一个传感器外壳 包含低压气体并且限定从所述空腔（48）朝向所述蓄能器（20）的开口（68）的空腔（48），位于所述空腔（48）内用于发射激光器（72）的激光传感器（70） ）通过传感器外壳（46）中的开口（68）和蓄能器（20）中的孔（29）朝向蓄能器（20）的活塞（28）和位于激光器之间的透明透镜 传感器（70）和蓄能器（20），以允许激光器（72）从激光传感器（70）通过到活塞（28），并且在ac 来自传感器外壳（46）的空腔（48）中的气体的累积器（20）。

    SYSTEM AND METHOD OF MANUFACTURE FOR A LINEAR POSITION SENSOR
    137.
    发明申请
    SYSTEM AND METHOD OF MANUFACTURE FOR A LINEAR POSITION SENSOR 审中-公开
    用于线性位置传感器的系统和制造方法

    公开(公告)号：WO2014003992A1

    公开(公告)日：2014-01-03

    申请号：PCT/US2013/044106

    申请日：2013-06-04

    Applicant: CONTROL PRODUCTS, INC.

    Inventor： GLASSON, Richard, O.

    IPC: F15B15/28 ,  G01B7/004

    CPC classification number: G01B7/003 ,  F15B15/20 ,  F15B15/283 ,  F15B15/2892 ,  F15B2201/31 ,  F15B2201/515 ,  G01B3/11 ,  G01D11/245 ,  Y10T29/49002

    Abstract: A linear position sensing system includes a sensor, a conduit and an enclosure. The sensor has a connector and a converting element, where the connector includes a first end attached to the converting element and a second end that passes through the conduit and is configured for attachment to a moveable element of an external device. The enclosure houses the sensor. The conduit includes a first end fitting that is attached to the enclosure and a second end fitting that is affixed at a port or other aperture of the external device. The second end of the connector is configured to be inserted in the port other aperture and attached to the moveable element without disassembly of the external device.

    Abstract translation: 线性位置感测系统包括传感器，导管和外壳。 传感器具有连接器和转换元件，其中连接器包括连接到转换元件的第一端和穿过导管的第二端，并被配置为附接到外部设备的可移动元件。 外壳内装有传感器。 导管包括附接到外壳的第一端配件和固定在外部设备的端口或其他孔径处的第二端配件。 连接器的第二端构造成插入其他孔的端口并附接到可移动元件而不拆卸外部装置。

    HYDRAULIC ACCUMULATOR DEVICE
    138.
    发明申请
    HYDRAULIC ACCUMULATOR DEVICE 审中-公开
    HYDRO存储设备

    公开(公告)号：WO2013092961A3

    公开(公告)日：2013-09-26

    申请号：PCT/EP2012076563

    申请日：2012-12-21

    Applicant: BOSCH GMBH ROBERT ,  DIEHL UDO ,  ILLMANN ANDREAS ,  HAAG GOTTLOB ,  WALTER RAINER ,  ENGELBERG RALPH ,  COCLICI CRISTIAN-AURELIAN

    Inventor： DIEHL UDO ,  ILLMANN ANDREAS ,  HAAG GOTTLOB ,  WALTER RAINER ,  ENGELBERG RALPH ,  COCLICI CRISTIAN-AURELIAN

    IPC: F15B1/24

    CPC classification number: F15B1/24 ,  F15B2201/205 ,  F15B2201/515 ,  G01F23/2966

    Abstract: The invention relates to a hydraulic accumulator device having a housing (4) which comprises a gas volume (8) and a fluid volume (10). In order to simplify the sensing of the state of charge of hydraulic accumulator devices, an interference signal generator (11) and a measurement signal pickup (12) are provided, which measurement signal pickup (12) detects, in a modified form as a measurement signal, an interference signal which is output by the interference signal generator (11) and propagates in the gas volume (8) or the fluid volume (10) and/or across the housing (4).

    Abstract translation: 本发明涉及一种具有壳体（4），其包括气体（8）的体积和液体（10）的体积的液压蓄能装置。 为了简化电荷液压蓄能器装置的状态的检测，一个Störsignalgeber（11）和一个测量信号传感器（12）设置，其中噪声信号，该信号是从Störsignalgeber输出（11）和（气体体积（8）或所述液体体积10 ）传播和/或经由所述壳体（4）被检测为在修改的形式的测量信号。

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