中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

23 records (took 0.012 seconds)

    Valve device
    1.
    发明授权
    Valve device 有权

    公开(公告)号：US11940048B2

    公开(公告)日：2024-03-26

    申请号：US17197067

    申请日：2021-03-10

    Applicant: MIKUNI CORPORATION

    Inventor： Toshiaki Ishii ,  Makoto Koyama ,  Daisuke Takayama

    IPC: F16J15/10 ,  F16J15/30 ,  F16J15/54

    CPC classification number: F16J15/10 ,  F16J15/30 ,  F16J15/54 ,  F04B2201/0603

    Abstract: A valve device includes a body that defines a passage through which a fluid flows, a shaft that is movably supported with respect to the body and defines an axis, a valve element that is fixed to the shaft to open and close the passage; and a cylindrical bearing bush that movably supports the shaft with respect to the body, in which the bearing bush includes a mixed region in which a metal core material and expanded graphite are mixed with each other, and a first expanded graphite region made of only the expanded graphite such that the metal core material is not exposed in an inner circumferential side region in contact with an outer circumferential surface of the shaft.

    SENSOR SYSTEM FOR A POSITIVE DISPLACEMENT PUMP
    2.
    发明申请
    SENSOR SYSTEM FOR A POSITIVE DISPLACEMENT PUMP 审中-公开
    用于积极位移泵的传感器系统

    公开(公告)号：US20150152855A1

    公开(公告)日：2015-06-04

    申请号：US14613622

    申请日：2015-02-04

    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION

    Inventor： Jean-Louis PESSIN ,  Joe HUBENSCHMIDT ,  Erik RHEIN-KNUDSEN ,  Toshimichi WAGO ,  Nathan St. Michel

    IPC: F04B19/22 ,  F04B51/00

    CPC classification number: F04B19/22 ,  E21B47/0008 ,  F04B9/00 ,  F04B47/00 ,  F04B49/22 ,  F04B51/00 ,  F04B2201/0201 ,  F04B2201/0603

    Abstract: A positive displacement pump is provided that includes a pump housing having a pump chamber; a plunger mounted in the pump housing for reciprocating motion in the pump chamber; a suction valve positioned to allow a fluid to enter the pump chamber upon movement of the plunger in a first direction; a discharge valve positioned to discharge the fluid from the pump chamber upon movement of the plunger in a second direction; and at least one sensor enclosed by the pump housing for measuring at least one pump condition parameter.

    Abstract translation: 提供一种容积式泵，其包括具有泵室的泵壳体; 安装在所述泵壳体中用于在所述泵室中往复运动的柱塞; 吸入阀，定位成当柱塞在第一方向上移动时允许流体进入泵室; 排出阀，定位成当柱塞沿第二方向移动时，从泵室排出流体; 以及由泵壳体包围的至少一个传感器，用于测量至少一个泵状态参数。

    Critical Valve Performance Monitoring System
    5.
    发明申请
    Critical Valve Performance Monitoring System 审中-公开

    公开(公告)号：US20180230786A1

    公开(公告)日：2018-08-16

    申请号：US15745644

    申请日：2015-09-04

    Applicant: Halliburton Energy Services, Inc.

    Inventor： Joseph A. Beisel

    IPC: E21B43/12 ,  F04B49/06

    CPC classification number: E21B43/12 ,  F04B47/02 ,  F04B49/065 ,  F04B2201/0201 ,  F04B2201/0603 ,  F04B2201/1208 ,  G01B7/003

    Abstract: A monitoring system may include a position sensor, strain gauges, and a computing device for monitoring valves in a pressure pump having multiple chambers to determine critical valve limits for the valves using strain measurements for each charmber. The strain gauges may determine strain in each chamber of the pressure pump. The position sensor may determine the position of a crankshaft mechanically coupled to a plunger in each chamber. The computing device may receive signals generated by the strain gauges and the position sensor related to the strain in each chamber and the position of the crankshaft, respectively, and may process the signals to determine delays in the actuation of the valves for determining critical valve limits.

    Method and system for monitoring a reciprocating compressor valve
    6.
    发明申请
    Method and system for monitoring a reciprocating compressor valve 有权
    用于监控往复式压缩机阀门的方法和系统

    公开(公告)号：US20070154325A1

    公开(公告)日：2007-07-05

    申请号：US11324668

    申请日：2006-01-03

    Applicant: John Grant ,  Olga Malakhova ,  Roger Hala ,  Brian Howard

    Inventor： John Grant ,  Olga Malakhova ,  Roger Hala ,  Brian Howard

    IPC: F04B49/00

    CPC classification number: F04B51/00 ,  F04B2201/0603 ,  F04B2201/1208 ,  G01M15/06

    Abstract: A method for monitoring a condition of at least one valve positioned with respect to at least one of a first chamber and a second chamber of a reciprocating compressor is provided. The method includes establishing a compressor operation cycle including a valve opening event, a valve closing event and/or a rod reversal event. A crank angle is determined at each of the valve opening event, the valve closing event and/or the rod reversal event during the compressor operation cycle using at least one of a static pressure input and a machine speed input. The method further include diagnosing a valve leak condition during the compressor operation cycle at the valve closing event, wherein the at least one valve is closed.

    Abstract translation: 提供了一种用于监测相对于往复式压缩机的第一室和第二室中的至少一个定位的至少一个阀的状态的方法。 该方法包括建立包括阀打开事件，闭阀事件和/或杆反转事件的压缩机操作循环。 在压缩机运行循环期间，使用静压输入和机器速度输入中的至少一个，在阀打开事件，闭阀事件和/或杆反转事件中的每一个确定曲柄角。 所述方法还包括在所述关闭阀门事件期间在压缩机运行循环期间诊断阀泄漏状况，其中所述至少一个阀关闭。

Patent Agency Ranking