中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

17 records (took 0.014 seconds)

    SYSTEM AND METHOD FOR REDUCING HYDROGEN IN A CASTING
    1.
    发明申请
    SYSTEM AND METHOD FOR REDUCING HYDROGEN IN A CASTING 审中-公开
    用于减少铸件中氢的系统和方法

    公开(公告)号：US20160271691A1

    公开(公告)日：2016-09-22

    申请号：US14658664

    申请日：2015-03-16

    Applicant: General Electric Company

    Inventor： Alexander Kagan ,  Adegboyega Masud Makinde ,  Duncan Spalding Pratt ,  Huijuan Dai ,  Longzhi Jiang ,  Qi Zhao

    IPC: B22D27/00 ,  B22D41/00 ,  B22D21/04 ,  B22D1/00 ,  B22D18/06

    CPC classification number: B22D27/003 ,  B22D1/002 ,  B22D18/06 ,  B22D21/04 ,  B22D23/02 ,  B22D27/006 ,  B22D41/00

    Abstract: A method involves filling a hydrogen-lean molten material in a crucible and closing a lid of the crucible and then feeding a first quantity of a compressed dry gas via the crucible to form a dry gas blanket on a surface of the hydrogen-lean molten material. The method further involves feeding a second quantity of the compressed dry gas to a mold assembly to purge the mold assembly and transferring the hydrogen-lean molten material via an opening of the lid of the crucible to a mold cavity of the mold assembly. The method further involves cooling the hydrogen-lean molten material to form a casting.

    Abstract translation: 一种方法包括在坩埚中填充贫氢的熔融材料并关闭坩埚的盖子，然后通过坩埚供给第一量的压缩的干燥气体，以在无氢的熔融材料的表面上形成干燥的气体覆盖层 。 该方法还包括将第二数量的压缩干燥气体供给到模具组件以吹扫模具组件，并将经过坩埚盖的开口的无氢贫化熔融材料转移到模具组件的模腔中。 该方法还包括冷却无氢贫熔融材料以形成铸件。

    SYSTEMS AND METHODS FOR ENERGIZING MAGNETS OF MAGNETIC RESONANCE IMAGING (MRI) SYSTEMS
    3.
    发明申请
    SYSTEMS AND METHODS FOR ENERGIZING MAGNETS OF MAGNETIC RESONANCE IMAGING (MRI) SYSTEMS 审中-公开
    磁共振成像（MRI）系统磁能的系统与方法

    公开(公告)号：US20160178717A1

    公开(公告)日：2016-06-23

    申请号：US14572865

    申请日：2014-12-17

    Applicant: General Electric Company

    Inventor： Longzhi Jiang ,  Venkata K. Mogatadakala ,  Hua Zhou

    IPC: G01R33/3815 ,  G01R33/36 ,  G01R33/385

    Abstract: A magnetic resonance imaging (MRI) system may include a magnet, one or more gradient power amplifiers, one or more radio frequency (RF) power amplifiers, and a single power supply configured to provide power to each of the magnet, the one or more gradient power amplifiers, and the one or more RF power amplifiers.

    Abstract translation: 磁共振成像（MRI）系统可以包括磁体，一个或多个梯度功率放大器，一个或多个射频（RF）功率放大器，以及被配置为向每个磁体提供功率的单个电源，所述一个或多个 梯度功率放大器和一个或多个RF功率放大器。

    SYSTEM AND APPARATUS FOR COMPENSATING FOR MAGNETIC FIELD DISTORTION IN AN MRI SYSTEM
    6.
    发明申请
    SYSTEM AND APPARATUS FOR COMPENSATING FOR MAGNETIC FIELD DISTORTION IN AN MRI SYSTEM 有权
    用于补偿MRI系统中磁场失真的系统和装置

    公开(公告)号：US20140155268A1

    公开(公告)日：2014-06-05

    申请号：US13690392

    申请日：2012-11-30

    Applicant: GENERAL ELECTRIC COMPANY

    Inventor： Weijun Shen ,  Timothy J. Havens ,  Longzhi Jiang ,  Tesfaye K. Kidane

    IPC: G01R33/34

    CPC classification number: G01R33/34023 ,  G01R33/3815 ,  G01R33/387 ,  G01R33/3875

    Abstract: A magnet apparatus for a magnetic resonance imaging system, the magnet apparatus includes a cylindrical vacuum vessel, a closed loop cooling system disposed within the vacuum vessel and a cylindrical thermal shield disposed between the vacuum vessel and the closed loop cooling system. A set of passive compensation coils are disposed within the vacuum vessel and used to compensate for magnetic field distortion caused by mechanical vibrations within the magnet apparatus.

    Abstract translation: 一种用于磁共振成像系统的磁体装置，磁体装置包括圆柱形真空容器，设置在真空容器内的闭环冷却系统和设置在真空容器和闭环冷却系统之间的圆柱形热屏蔽。 一组无源补偿线圈设置在真空容器内，用于补偿由磁体装置内的机械振动引起的磁场畸变。

    SYSTEM AND APPARATUS FOR COMPENSATING FOR MAGNETIC FIELD DISTORTION IN AN MRI SYSTEM
    7.
    发明申请
    SYSTEM AND APPARATUS FOR COMPENSATING FOR MAGNETIC FIELD DISTORTION IN AN MRI SYSTEM 有权
    用于补偿MRI系统中磁场失真的系统和装置

    公开(公告)号：US20130154648A1

    公开(公告)日：2013-06-20

    申请号：US13690312

    申请日：2012-11-30

    Applicant: GENERAL ELECTRIC COMPANY

    Inventor： Weijun Shen ,  Timothy J. Havens ,  Longzhi Jiang ,  Tesfaye K. Kidane

    IPC: G01R33/34

    CPC classification number: G01R33/34092 ,  G01R33/3875 ,  G01R33/389 ,  G01R33/56509 ,  G01R33/56518

    Abstract: A magnet apparatus for a magnetic resonance imaging system, the magnet apparatus includes a vacuum vessel, a helium vessel disposed within the vacuum vessel and a thermal shield disposed between the vacuum vessel and the helium vessel. A set of passive compensation coils are disposed within the vacuum vessel or the helium vessel and used to compensate for magnetic field distortion caused by mechanical vibrations within the magnet apparatus.

    Abstract translation: 一种用于磁共振成像系统的磁体装置，磁体装置包括真空容器，设置在真空容器内的氦容器和设置在真空容器和氦容器之间的热屏蔽。 一组无源补偿线圈设置在真空容器或氦容器内，并用于补偿由磁体设备内的机械振动引起的磁场变形。

    System for reducing thermal shield vibrations
    9.
    发明授权
    System for reducing thermal shield vibrations 有权

    公开(公告)号：US10416254B2

    公开(公告)日：2019-09-17

    申请号：US14781125

    申请日：2014-03-26

    Applicant: General Electric Company

    Inventor： Evangelos Trifon Laskaris ,  Longzhi Jiang ,  Yihe Hua

    IPC: G01R33/385 ,  G01R33/38

    Abstract: A magnetic resonance imaging system includes at least one gradient coil, at least one coil former, a thermal shield assembly, and at least one linking member. The at least one gradient coil generates at least one gradient field along at least one direction in response to pulsed signals. The at least one coil former is attached with at least one coil. The thermal shield assembly is arranged adjacent to the at least one coil former. The at least one linking member is configured for increasing mechanical rigidity of the thermal shield assembly by mechanically linking at least a part of the thermal shield assembly with the at least one coil former. As a result, mechanical vibrations of the thermal shield assembly can be reduced.

Patent Agency Ranking