公开(公告)号：US20240429761A1

公开(公告)日：2024-12-26

申请号：US18822425

申请日：2024-09-02

Applicant: Advanced Magnet Lab, Inc.

Inventor： Mark Senti ,  Philippe Masson

IPC: H02K1/278 ,  H02K1/02

Abstract: 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 comprising low coercivity magnetic materials. 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. Electric machines, rotors and magnets of the invention may contain no rare earth magnetic materials.

公开(公告)号：US09911525B2

公开(公告)日：2018-03-06

申请号：US14554312

申请日：2014-11-26

Applicant: Advanced Magnet Lab, Inc.

Inventor： Gerald Stelzer ,  Rainer Meinke ,  Mark Senti

IPC: H01F27/30 ,  H01F5/00 ,  H01L39/24 ,  H01F7/06 ,  H01F5/06 ,  G01R33/38 ,  H01F6/06 ,  H01F7/20 ,  H01F41/04 ,  H01F41/086 ,  H01F41/071 ,  H01F41/098 ,  G01R33/28 ,  G01R33/3815 ,  H01F6/02

CPC classification number: H01F5/06 ,  G01R33/288 ,  G01R33/3802 ,  G01R33/3815 ,  H01F6/02 ,  H01F6/06 ,  H01F7/20 ,  H01F41/04 ,  H01F41/071 ,  H01F41/086 ,  H01F41/098 ,  Y10T29/49014 ,  Y10T29/4902 ,  Y10T29/49073

Abstract: A conductor assembly and method for constructing an assembly of the type which, when conducting current, generates a magnetic field or which, in the presence of a changing magnetic field, induces a voltage. In one embodiment the method provides a first insulative layer tubular in shape and including a surface along which a conductor segment may be positioned. A channel formed in the surface of the insulative layer defines a first conductor path and includes a surface of first contour in cross section along a first plane transverse to the conductor path. A segment of conductor having a surface of second contour in cross section is positioned at least partly in the channel and extends along the conductor path. Along the first plane, contact between the conductor surface of second contour and the channel surface of first contour includes at least two separate regions of contact.

公开(公告)号：US20140332203A1

公开(公告)日：2014-11-13

申请号：US14018794

申请日：2013-09-05

Applicant: Advanced Magnet Lab, Inc.

Inventor： Rainer Meinke ,  Mark Senti ,  Gerald Stelzer

IPC: E21B33/13 ,  F17D5/02

CPC classification number: E21B33/035 ,  E21B33/064 ,  E21B33/13 ,  Y10T137/0391

Abstract: 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.

Abstract translation: 结构的一部分减轻流体的流动。 在一个实施例中，该段包括用于流体流动的开口，并且修改的结构可以包括限定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 。

公开(公告)号：US20230062147A1

公开(公告)日：2023-03-02

申请号：US17981398

申请日：2022-11-05

Applicant: Advanced Magnet Lab, Inc.

Inventor： Philippe Masson ,  Mark Senti

IPC: H01F41/02 ,  H01F7/02 ,  H01F13/00 ,  H01F1/032

Abstract: 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.

公开(公告)号：US20150137920A1

公开(公告)日：2015-05-21

申请号：US14554312

申请日：2014-11-26

Applicant: Advanced Magnet Lab, Inc.

Inventor： Gerald Stelzer ,  Rainer Meinke ,  Mark Senti

IPC: H01F5/06 ,  H01F41/04 ,  H01F7/20

CPC classification number: H01F5/06 ,  G01R33/288 ,  G01R33/3802 ,  G01R33/3815 ,  H01F6/02 ,  H01F6/06 ,  H01F7/20 ,  H01F41/04 ,  H01F41/071 ,  H01F41/086 ,  H01F41/098 ,  Y10T29/49014 ,  Y10T29/4902 ,  Y10T29/49073

Abstract: A conductor assembly and method for constructing an assembly of the type which, when conducting current, generates a magnetic field or which, in the presence of a changing magnetic field, induces a voltage. In one embodiment the method provides a first insulative layer tubular in shape and including a surface along which a conductor segment may be positioned. A channel formed in the surface of the insulative layer defines a first conductor path and includes a surface of first contour in cross section along a first plane transverse to the conductor path. A segment of conductor having a surface of second contour in cross section is positioned at least partly in the channel and extends along the conductor path. Along the first plane, contact between the conductor surface of second contour and the channel surface of first contour includes at least two separate regions of contact.

公开(公告)号：US12081076B2

公开(公告)日：2024-09-03

申请号：US18222382

申请日：2023-07-14

Applicant: Advanced Magnet Lab, Inc.

Inventor： Mark Senti ,  Philippe Masson

IPC: H02K1/27 ,  H02K1/02 ,  H02K1/278

CPC classification number: H02K1/278 ,  H02K1/02

Abstract: 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 comprising low coercivity magnetic materials. 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. Electric machines, rotors and magnets of the invention may contain no rare earth magnetic materials.

公开(公告)号：US20230361635A1

公开(公告)日：2023-11-09

申请号：US18222382

申请日：2023-07-14

Applicant: Advanced Magnet Lab, Inc.

Inventor： Mark Senti ,  Philippe Masson

IPC: H02K1/278 ,  H02K1/02

CPC classification number: H02K1/278 ,  H02K1/02

Abstract: 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 comprising low coercivity magnetic materials. 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. Electric machines, rotors and magnets of the invention may contain no rare earth magnetic materials.

公开(公告)号：US10002696B2

公开(公告)日：2018-06-19

申请号：US14554255

申请日：2014-11-26

Applicant: Advanced Magnet Lab, Inc.

Inventor： Gerald Stelzer ,  Rainer Meinke ,  Mark Senti

IPC: H01F27/30 ,  H01F27/10 ,  H01F5/06 ,  G01R33/38 ,  H01F6/06 ,  H01F7/20 ,  H01F41/04 ,  H01F41/086 ,  H01F41/071 ,  H01F41/098 ,  G01R33/28 ,  G01R33/3815 ,  H01F6/02

CPC classification number: H01F5/06 ,  G01R33/288 ,  G01R33/3802 ,  G01R33/3815 ,  H01F6/02 ,  H01F6/06 ,  H01F7/20 ,  H01F41/04 ,  H01F41/071 ,  H01F41/086 ,  H01F41/098 ,  Y10T29/49014 ,  Y10T29/4902 ,  Y10T29/49073

Abstract: A conductor assembly and method for constructing an assembly of the type which, when conducting current, generates a magnetic field or which, in the presence of a changing magnetic field, induces a voltage. In one embodiment the method provides a first insulative layer tubular in shape and including a surface along which a conductor segment may be positioned. A channel formed in the surface of the insulative layer defines a first conductor path and includes a surface of first contour in cross section along a first plane transverse to the conductor path. A segment of conductor having a surface of second contour in cross section is positioned at least partly in the channel and extends along the conductor path. Along the first plane, contact between the conductor surface of second contour and the channel surface of first contour includes at least two separate regions of contact.

公开(公告)号：US09551203B2

公开(公告)日：2017-01-24

申请号：US14018794

申请日：2013-09-05

Applicant: Advanced Magnet Lab, Inc.

Inventor： Rainer Meinke ,  Mark Senti ,  Gerald Stelzer

IPC: F16L55/10 ,  E21B33/13

CPC classification number: E21B33/035 ,  E21B33/064 ,  E21B33/13 ,  Y10T137/0391

Abstract: 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.

Abstract translation: 结构的一部分减轻流体的流动。 在一个实施例中，该段包括用于流体流动的开口，并且修改的结构可以包括限定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 。

公开(公告)号：US20150137921A1

公开(公告)日：2015-05-21

申请号：US14554255

申请日：2014-11-26

Applicant: Advanced Magnet Lab, Inc.

Inventor： Gerald Stelzer ,  Rainer Meinke ,  Mark Senti

IPC: H01F5/06 ,  H01F41/06 ,  H01F7/20

CPC classification number: H01F5/06 ,  G01R33/288 ,  G01R33/3802 ,  G01R33/3815 ,  H01F6/02 ,  H01F6/06 ,  H01F7/20 ,  H01F41/04 ,  H01F41/071 ,  H01F41/086 ,  H01F41/098 ,  Y10T29/49014 ,  Y10T29/4902 ,  Y10T29/49073

Abstract: A conductor assembly and method for constructing an assembly of the type which, when conducting current, generates a magnetic field or which, in the presence of a changing magnetic field, induces a voltage. In one embodiment the method provides a first insulative layer tubular in shape and including a surface along which a conductor segment may be positioned. A channel formed in the surface of the insulative layer defines a first conductor path and includes a surface of first contour in cross section along a first plane transverse to the conductor path. A segment of conductor having a surface of second contour in cross section is positioned at least partly in the channel and extends along the conductor path. Along the first plane, contact between the conductor surface of second contour and the channel surface of first contour includes at least two separate regions of contact.

Abstract translation: 一种用于构造这种类型的组件的导体组件和方法，其在传导电流时产生磁场，或者在存在变化的磁场的情况下产生电压。 在一个实施例中，该方法提供形状的第一绝缘层管状体，并且包括可以定位导体段的表面。 形成在绝缘层的表面中的沟道限定第一导体路径，并且包括沿着横向于导体路径的第一平面的横截面的第一轮廓的表面。 具有第二轮廓的横截面的导体段至少部分地定位在通道中并且沿着导体路径延伸。 沿着第一平面，第二轮廓的导体表面与第一轮廓的通道表面之间的接触包括至少两个单独的接触区域。