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1. 发明申请

WO2011153245A1 CLOSING OF UNDERWATER OIL SPILLS WITH THE HELP OF MAGNETIC POWDERS 审中-公开
标题翻译：用水粉灭火器关闭水下油路
公开(公告)号：WO2011153245A1
公开(公告)日：2011-12-08
申请号：PCT/US2011/038767
申请日：2011-06-01
申请人： ADVANCED MAGNET LAB, INC. , MEINKE, Rainer , SENTI, Mark , STELZER, Gerald
发明人： MEINKE, Rainer , SENTI, Mark , STELZER, Gerald
IPC分类号： F16J15/43
CPC分类号： E21B33/12 , E21B33/00 , E21B33/10 , F16J15/43 , F16L55/1003
摘要： A segment of a structure mitigates flow of fluid therethrough. In one embodiment the segment includes an opening for the fluid flow and the modified structure may include a ferromagnetic wall defining the opening and a plurality of permanently magnetized particles. Some of the permanently magnetized particles are attached to the wall by magnetic forces. A system is also provided for injecting magnetic particles into a cavity to impede movement of fluid through the cavity. A method is also described for mitigating a flow of fluid through an opening in a wall. In one embodiment, the method includes positioning a plurality of first magnetic particles along the wall and about the opening and attaching a plurality of second magnetic particles to the first magnetic particles wherein some of the second magnetic particles collectively extend across the opening to cover the opening.
摘要翻译：结构的一部分减轻了流体的流动。在一个实施例中，所述段包括用于流体流动的开口，并且所述改进的结构可以包括限定所述开口的铁磁壁和多个永久磁化的颗粒。一些永久磁化的颗粒通过磁力附着在墙壁上。还提供了一种用于将磁性颗粒注入空腔中以阻止流体通过空腔的运动的系统。还描述了一种用于减轻通过壁中的开口的流体流动的方法。在一个实施例中，该方法包括沿着壁和围绕开口定位多个第一磁性颗粒，并将多个第二磁性颗粒附着到第一磁性颗粒，其中一些第二磁性颗粒一起延伸穿过开口以覆盖开口。

2. 发明申请

WO2021226293A2 METHOD FOR CONTINUOUS MANUFACTURING OF PERMANENT MAGNETS 审中-公开
公开(公告)号：WO2021226293A2
公开(公告)日：2021-11-11
申请号：PCT/US2021/030980
申请日：2021-05-05
申请人： ADVANCED MAGNET LAB, INC. , MASSON, Philippe , SENTI, Mark
发明人： MASSON, Philippe , SENTI, Mark
IPC分类号： B22F3/12
摘要： A method for continuous manufacture of permanent magnets. A material sheet is formed into an open tube, having a lengthwise opening. Magnetic powder may be poured into the lengthwise opening on a continuous basis. The tube opening is then formed closed and sealed. The magnetic powder is magnetically pre-aligned by subjecting it to a first magnetic field. The tube containing the powder may be compressed into a desired shape, forming an elongated permanent magnet. After compression, the elongated magnet is magnetized by a second magnetic field in two-step process, wherein the elongated permanent magnet is subjected to a magnetic field from first magnetizing coil that is pulsed with a first electric current in a first direction, followed by a second magnetizing coil being pulsed with a second magnetizing electric current in a second direction. The elongated magnet may be formed into any arbitrary shape, such as a ring or coil.

3. 发明申请

WO2022155535A1 ELECTRICAL MACHINES USING AXIALLY-MAGNETIZED CURVILINEAR PERMANENT MAGNETS 审中-公开
公开(公告)号：WO2022155535A1
公开(公告)日：2022-07-21
申请号：PCT/US2022/012622
申请日：2022-01-14
申请人： ADVANCED MAGNET LAB, INC.
发明人： MASSON, Philippe , SENTI, Mark
IPC分类号： H02K1/27 , H02K16/00 , H02K16/02 , H02K21/10 , H02K1/22 , H02K1/06 , H02K1/02 , H02K1/00
摘要： A configuration of a plurality of elongate, axially -magnetized curvilinear permanent magnets having high length to cross-section ratio, produced, for example, by the PM-Wire manufacturing process, that produce an electric machine permanent magnet rotor structure with a very low intrinsic demagnetizing field, allowing for operation at high temperature, at high RPM, or enabling use of permanent magnets with low coercivity fields. Exemplary embodiments of two-pole, four-pole, six-pole and eight-pole rotor permanent magnet configurations for single and dual rotor applications. The novel configuration of axially-magnetized curvilinear permanent magnets reduces demagnetization at high temperature, increases electric machine power density, reduces weight by eliminating the need for back iron, increases motor reliability, reduces manufacturing costs, and enables higher electric motor torque and electric generators. Typical applications of the axially-magnetized curvilinear permanent magnets, rotors, and electric machines of the invention are in motors for electrically-powered ground vehicles, rotorcraft, airplanes and other aircraft.

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