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1. 发明申请

US20230130413A1 BRUSHLESS MOTOR 有权
公开(公告)号：US20230130413A1
公开(公告)日：2023-04-27
申请号：US18087326
申请日：2022-12-22
申请人： Murata Manufacturing Co., Ltd.
发明人： Osamu NAITO , Miyuki FURUYA
IPC分类号： H02K29/00 , H02K1/2706 , H02K7/09
摘要： A brushless motor is provided that includes a rotor, a stator, a bearing member, an attraction magnet, and a yoke. The rotor includes a shaft, a rotor yoke that holds the shaft and covers a peripheral surface of the shaft, and a magnet disposed around an outer periphery of the rotor yoke. The stator is disposed around an outer periphery of the rotor. An inner wall of a housing serving as a bearing member rotatably holds the shaft with a bearing. The attraction magnet is disposed at an end portion of the inner wall at which the rotor yoke holds the shaft, and produces an attraction force to attract the rotor yoke. The yoke supplements and enhances the attraction force produced by the attraction magnet.

2. 发明申请

US20230072165A1 ROTARY ELECTRICAL MACHINE AND STATOR ASSEMBLY FOR SUCH MACHINE 有权
公开(公告)号：US20230072165A1
公开(公告)日：2023-03-09
申请号：US17900174
申请日：2022-08-31
申请人： SKF Magnetic Mechatronics
发明人： Francis Bienaime , Eduardo Carrasco , Alain Boulier , Julien Boisson
IPC分类号： H02K9/10 , H02K1/04 , H02K7/09 , H02K21/14
摘要： A stator assembly for rotary electrical machine including a stator provided with windings. A sealing and cooling element is overmolded onto the stator.

3. 发明申请

US20220403847A1 PUMP HAVING OPPOSING MAGNETS BETWEEN A ROTOR AND STATOR, AND RELATED ASSEMBLIES, SYSTEMS, AND METHODS 有权
公开(公告)号：US20220403847A1
公开(公告)日：2022-12-22
申请号：US17821401
申请日：2022-08-22
申请人： White Knight Fluid Handling Inc.
发明人： Tom Simmons , Geoffrey White , Courtney Parsons
IPC分类号： F04D13/06 , F04D29/051 , F04D29/058 , F04D25/02 , F04D13/02 , H02K7/09 , A61M60/82
摘要： A pump may include a stator, a rotor, and an impeller. The stator may include one or more electromagnets and one or more permanent magnets. The rotor may include an armature, one or more complementary permanent magnets, and a pull magnet configured to position the rotor in an axial direction. The rotor may be disposed within the stator. The complementary permanent magnets and the one or more permanent magnets of the stator may create magnetic bearings. The armature may be aligned with at least one of the electromagnets of the stator and configured to rotate the rotor with respect to the stator. The impeller may be coupled to the rotor.

4. 发明授权

US11469025B2 Electromagnetic propulsion system 有权
公开(公告)号：US11469025B2
公开(公告)日：2022-10-11
申请号：US16711776
申请日：2019-12-12
申请人： Honeywell Federal Manufacturing & Technologies, LLC
发明人： Seth Hartman , Erik Timpson
IPC分类号： H01F7/06 , H01F7/17 , H02K1/27 , H02K5/167 , H02K7/09 , H02K1/2786 , F41B6/00
摘要： An electromagnetic propulsion system is provided. The system comprises first and second pluralities of stator coils wound about first and second axes, a plurality of support structures, first and second couplers that surround portions of the first and second pluralities of stator coils, and first and second pluralities of sets of rotor coils wound about axes that are parallel to the first and second axes. The stator coils are configured to receive electric current through an outside controller selecting appropriately coupled stator sections or through a sliding electrical contact system or bearing system to induce at least a first magnetic field. The plurality of support structures supports the first and second plurality of stator coils. The first and second couplers include notches and are oriented so that their notches pass over the plurality of support structures when the couplers move along the stator coils. The couplers may have an adjustable segment to close the notch. The sets of rotor coils are equidistantly attached to the couplers and are configured to receive electric current to induce magnetic fields that interact with the magnetic fields of the stator coils so that magnetic forces are applied to the plurality of rotor coils, thereby propelling the couplers along the stator coils.

5. 发明授权

US11460038B2 Hybrid magnetic radial bearing in an electric submersible pump (ESP) assembly 有权
公开(公告)号：US11460038B2
公开(公告)日：2022-10-04
申请号：US16886213
申请日：2020-05-28
申请人： Halliburton Energy Services, Inc.
发明人： David Christopher Beck , Christopher Watson , Robert C. de Long
IPC分类号： F04D29/048 , F16C32/04 , E21B43/12 , F04D13/08 , H02K7/09 , H02K5/132 , F04D13/10 , F04D29/04 , F04D29/057 , F04D25/06 , F04D29/058 , F04D19/04 , H02K5/128 , E21B43/00 , F04D13/06 , F04D1/00
摘要： An electric submersible pump (ESP) assembly. The ESP assembly comprises an electric motor, a centrifugal pump, and a hybrid magnetic radial bearing, wherein the hybrid magnetic radial bearing is disposed inside the electric motor or disposed inside the centrifugal pump.

6. 发明申请

US20220302717A1 SYSTEMS AND METHODS FOR BATTERY IMPEDANCE MATCHING TO FACILITATE IMPROVED BATTERY CHARGING 有权
公开(公告)号：US20220302717A1
公开(公告)日：2022-09-22
申请号：US17711083
申请日：2022-04-01
申请人： Premergy, Inc.
发明人： Richard Edward Botts
IPC分类号： H02J7/00 , H02K1/17 , H02K1/2706 , H02J7/14 , H02K31/02 , H02K7/09 , H02K13/10
摘要： Systems, methods, and apparatus for providing a homopolar generator charger with an integral rechargeable battery. A method is provided for converting rotational kinetic energy to electrical energy for charging one or more battery cells. The method can include rotating, by a shaft, a rotor in a magnetic flux field to generate current, wherein the rotor comprises an electrically conductive portion having an inner diameter conductive connection surface and an outer diameter conductive connection surface, and wherein a voltage potential is induced between the inner and outer diameter connection surfaces upon rotation in the magnetic flux field. The method can also include selectively coupling the generated current from the rotating rotor to terminals of the one or more battery cells.

7. 发明授权

US11451169B2 Multi-dimensional magnetic levitation and translation system and methods 有权
公开(公告)号：US11451169B2
公开(公告)日：2022-09-20
申请号：US17104304
申请日：2020-11-25
申请人： REMANENCE TECHNOLOGY GROUP, LLC
发明人： Christian James Wierzbicki , Fiona Marie Gaffney , Evan Ray Tipton , Jason Richard Turschak , Nicholas Ryan Llewellyn
IPC分类号： H02N15/00 , H02K7/09 , F16C32/04 , H02K11/215
摘要： Multi-dimensional magnetic levitation and translation systems include at least one electromagnets located on each of three perpendicular axes. The at least three electromagnets are operated using a control system to apply a nonphysical force on objects contained within the magnetic field. An object is able to be levitated within the system in spite of any variable acceleration the system experiences due to the environment. The multi-dimensional magnetic levitation system is able to linearly translate an object within its volume of control.

8. 发明申请

US20220231572A1 HOLLOW, MAGNETIC FLYWHEEL AND RELATED GENERATOR SYSTEMS 有权
公开(公告)号：US20220231572A1
公开(公告)日：2022-07-21
申请号：US17569959
申请日：2022-01-06
申请人： MATTUR, LLC
发明人： Kris Kesler
IPC分类号： H02K7/02 , H02K21/24 , H02K7/09
摘要： Methods and systems for improved power generation are provided. In one embodiment, a flywheel is provided for use in a generator. The flywheel may include hollow disks that each contain a plurality of magnets that are angularly distributed around the hollow disks. The hollow disks may be fastened together using disk attachment brackets that attach to attachment points on the hollow disks. Stator disks, which may be separate from the flywheel, may be positioned between adjacent pairs of the hollow disks. The stator disks may contain multiple coils of wire that are angularly distributed around the stator disks. In operation, the flywheel may rotate while the stator disks remain stationary.

9. 发明授权

US11374478B2 Stepping motor 有权
公开(公告)号：US11374478B2
公开(公告)日：2022-06-28
申请号：US16986674
申请日：2020-08-06
申请人： MINEBEA MITSUMI Inc.
发明人： Nobuyuki Sueyoshi , Mitsuo Kinoshita
IPC分类号： H02K37/14 , H02K7/09
摘要： A stepping motor has a relationship between an outer diameter of a rotor and an outer diameter of a bearing made of magnetic material that can be adjusted appropriately so as to impart magnetic attractive force to the bearing, the stepping motor including a rotor 400 made of a permanent magnet, a stator 500 including multiple pole teeth 223, 243, 323 and 343 extending in an axial direction of the rotor arranged at an outer circumferential side of the rotor 400, a bearing 250 rotatably supporting one end portion in the axial direction of the rotor 400, and a bearing 260 rotatably supporting the other end portion in the axial direction of the rotor 400. Magnetic permeability of the bearing 260 is greater than that of the bearing 250, the rotor 400 includes multiple magnetic poles on an outer circumferential surface along a circumferential direction of the rotor 400, and an outer diameter DR of the rotor 400, an outer diameter DB of a portion of the bearing 260 which is facing the rotor 400, and an inner diameter DSI of the stator 500 are set to satisfy the following relationship of formula 1 DR

10. 发明授权

US11323007B2 Magnetic levitation bearing, magnetic levitation rotor support assembly, and compressor 有权
公开(公告)号：US11323007B2
公开(公告)日：2022-05-03
申请号：US16652459
申请日：2018-10-29
申请人： GREE GREEN REFRIGERATION TECHNOLOGY CENTER CO., LTD. OF ZHUHAI
发明人： Xiaobo Zhang , Gao Gong , Yusheng Hu , Jianning Liu , Fang Zhang , Siyuan Tian , Chao Zhang , Jiuzhan Su , Xin Li
IPC分类号： H02K7/09 , F16C32/04 , F04D29/051 , F04D29/058
摘要： A magnetic levitation bearing, a magnetic levitation rotor support assembly, and a compressor. The magnetic levitation bearing is used for supporting a rotor by interacting with a thrust disc on the rotor, and comprises: a radial stator core having an annular structure, which is disposed on a radial outer side of the thrust disc and corresponds to the thrust disc in an axial direction of the rotor, the radial stator core and the thrust disc being separated by a first radial gap X1; and a radial control coil, which is disposed on the radial stator core and can generate a radial electromagnetic force to the thrust disc in a radial direction of the rotor.

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