Plural Rotary Elements Patents (Class 310/114)
  • Patent number: 11011966
    Abstract: An electric machine system disclosed herein comprises first and second electric machines configured to drive a load. The first electric machine has a plurality of first rotors. The second electric machine has a plurality of second rotors. At least one of the second rotors is indexed relative to a respective one of the first rotors to, in use, provide a torque phase offset between the first and second electric machines. A shaft is coupled to the load and connects the respective one of the first rotors with the at least one of the second rotors. The respective one of the first rotors is coaxial with and axially spaced apart from the at least one of the second rotors.
    Type: Grant
    Filed: December 7, 2018
    Date of Patent: May 18, 2021
    Assignee: PRATT & WHITNEY CANADA CORP.
    Inventors: Eric Latulipe, Richard Freer
  • Patent number: 11005348
    Abstract: Various embodiments are described herein for switched reluctance machine configurations. In at least one embodiment, a switched reluctance machine configured according to the teachings herein includes an axially extending shaft, an axially extending rotor mounted to the shaft, the rotor having a plurality of salient rotor poles, an axially extending stator disposed coaxially and concentrically with the rotor, the stator having a plurality of salient stator poles protruding radially from the stator towards the rotor poles, a plurality of stator teeth and tooth-tips, and a plurality of electrical coils wound about the stator poles to define a plurality of phases of the switched reluctance machine, where a number of stator poles can be determined according to the following equation and at least one constraint condition: N s = N t × LCM ? ( N s , N r ) N r × N ph × S 1 × S 2 .
    Type: Grant
    Filed: November 21, 2018
    Date of Patent: May 11, 2021
    Assignee: Enedym Inc.
    Inventors: Yasemin Oner, Berker Bilgin, Ali Emadi
  • Patent number: 11001372
    Abstract: An actuation assembly includes a drive mechanism that has an array of magnetic members moveable along an axis, and a gear train that has an input and an output. The drive mechanism causes the input to move in response to generating an electromagnetic field that interacts with at least one of the array of magnetic members.
    Type: Grant
    Filed: August 28, 2017
    Date of Patent: May 11, 2021
    Assignee: HAMILTON SUNDSTRAND CORPORATION
    Inventors: Naison E. Mastrocola, Rirchard A. Poisson
  • Patent number: 10981458
    Abstract: A homopolar DC electromagnetic transmission (HET) and an application system thereof are provided. The HET includes two rotors, a stator, an external auxiliary system and an adjustment control system. Each of the rotors has one or more axisymmetric rotor magnetic conductors, and the stator has one or more direct current magnet exciting coils wound around an axis of a rotation shaft. A main magnetic circuit is guided to be a closed ring. The HET includes at least two main magnetic circuits. The HET includes a closed main current loop. The loop is connected with all the rotor magnetic conductors, a rotor electric conductor, a dynamic/static circuit connecting medium, stator conductors and stator magnetic conductors in series or in series and parallel. A direction of main current on the rotor magnetic conductors is perpendicular to a direction of magnetic flux (?) on meridian plane.
    Type: Grant
    Filed: May 30, 2018
    Date of Patent: April 20, 2021
    Inventor: Limin Xu
  • Patent number: 10971980
    Abstract: A rotor in one embodiment includes an annular rotor main unit and a fitting portion that extends inward or outward one of an inner circumference and an outer circumference of the rotor main unit to be connected with a rotary shaft. The fitting portion is formed at a position at which a centerline of the fitting portion is offset in parallel with respect to a normal line that is associated with a tangent line of the one of the inner circumference and the outer circumference.
    Type: Grant
    Filed: March 12, 2018
    Date of Patent: April 6, 2021
    Assignee: MINEBEA MITSUMI INC.
    Inventors: Hiroshi Abe, Takashi Nakagawa
  • Patent number: 10954116
    Abstract: A first, and second twin AC inverters for a hybrid vehicle, whereby, the first and second inverters having a first, and second twin AC hard wire terminal blocks, a cool-down C-D process, and a conventional Engine Control Unit computerized remote-control drive system, whereby, being capable of activating the twin AC terminal blocks for Freeway speed, hills, faster acceleration, and a hybrid vehicle momentum regenerative braking kinetic energy process for: charging a battery-pack, and multiple batteries. The computer being capable of activating the first terminal block, when the cool-down process is to end, and deactivating the second terminal block, when the cool-down process is to begin. The Computer is capable of activating the first, or second terminal blocks, whereby, for operating in conjunction with one another for the Freeway speed for charging the battery?pack, including multiple batteries with respect to the above modification.
    Type: Grant
    Filed: June 5, 2020
    Date of Patent: March 23, 2021
    Inventor: Herbert Ray Floyd
  • Patent number: 10954947
    Abstract: A backpack-type blower according to one aspect of the present disclosure includes a plurality of fans, a plurality of DC power supplies and a backpack. The plurality of fans and the plurality of DC power supplies are mounted on the backpack. The backpack-type blower is configured to blow winds from the plurality of fans together.
    Type: Grant
    Filed: April 19, 2016
    Date of Patent: March 23, 2021
    Assignee: MAKITA CORPORATION
    Inventors: Hirokatsu Yamamoto, Yuki Kawai, Makoto Takahashi
  • Patent number: 10958123
    Abstract: An electromagnetic machine includes a rotor and a stator. The rotor is adapted to rotate about an axis. The stator includes a support structure, a plurality of bobbins engaged to the support structure, and a plurality of electric coils with each one wound about a respective bobbin of the plurality of bobbins.
    Type: Grant
    Filed: January 14, 2019
    Date of Patent: March 23, 2021
    Assignee: CARRIER CORPORATION
    Inventors: Tadeusz Pawel Witczak, Stella M. Oggianu, Cezary Jedryczka, Wojciech Szelag, Adam Marian Myszkowski, Zbigniew Piech
  • Patent number: 10910903
    Abstract: A coreless electromagnetic machine includes a dual rotor and a stator. The dual rotor is adapted to rotate about an axis, and includes inner and outer rotor segments. The outer rotor segment is spaced radially outward from, and axially aligned to, the inner rotor segment. The inner and outer rotor segments radially define an annular chamber. The stator is disposed, at least in-part, in the annular chamber.
    Type: Grant
    Filed: January 14, 2019
    Date of Patent: February 2, 2021
    Assignee: CARRIER CORPORATION
    Inventors: Tadeusz Pawel Witczak, Cezary Jedryczka, Wojciech Szelag, Stella M. Oggianu, Zbigniew Piech
  • Patent number: 10903699
    Abstract: Provided is a motor system adapted for modern society, which does not use a rare-earth magnet, improves a torque weight ratio by approximately one digit in comparison with the conventional motor, and has transfer efficiency of 90% between electric energy and rotational energy. A stator (1) has a dual-ring tooth-groove iron core, which has magnetic pole surface on both side surfaces and receives coils of basically two-phase structure divided to be multiplexed, with divided coils being interconnected. A rotor (2) is formed to be capable of rotating while holding eight sets of attraction poles having magnetic pole surfaces on both ends, with each set of attraction poles forming four air-gap-facing surfaces by positioning the dual-ring tooth-groove iron core between the attraction poles so that both side surfaces of the dual-ring tooth-groove iron core face the attraction poles via an air gap (6).
    Type: Grant
    Filed: January 13, 2017
    Date of Patent: January 26, 2021
    Assignee: CCU LINEAR MOTOR LABORATORY LTD.
    Inventor: Takashi Umemori
  • Patent number: 10903704
    Abstract: A fan motor for an air conditioner includes a rotor shaft, a plurality of rotor cores arranged in a circumferential direction about a center of the rotor shaft, a bridge configured to couple the rotor cores, permanent magnets coupled to the plurality of rotor cores, and an insert-injected rotor body provided in a space formed through the rotor shaft, the rotor cores, the bridge, and the permanent magnets. A cable holder for the fan motor includes an upper cable holder in which a plurality of protrusion walls are formed downwardly, a lower cable holder in which a plurality of guide walls coupled between the plurality of protrusion walls are formed upwardly, and a soldering land which is formed in a lower portion of the lower cable holder and upon which a wire can be soldered.
    Type: Grant
    Filed: March 28, 2017
    Date of Patent: January 26, 2021
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jin-woo Cho, Nam-su Kim, Uk-ho Seo, Jong-jun Seo, Ji-hoon Han, Min-woo Hong, Woong Hwang
  • Patent number: 10876618
    Abstract: A device is provided for activating a synchronous machine arranged in a vehicle. The vehicle has a gearbox and driven wheels in operative connection therewith. The synchronous machine is designed to drive the driven wheels via the gearbox. In the vehicle there is a lubricating unit, which is designed to lubricate the gearbox by way of a lubricant, for this purpose the lubricant flowing through the gearbox and at least part of the synchronous machine. The device is configured to operate the synchronous machine in a heating operating mode, which is different from a customary driving operating mode, when there are defined conditions that require heating when starting. At least one operating variable of the synchronous machine is set in the heating operating mode specifically such that, in the synchronous machine, there is a greater current heat loss in comparison with the customary driving operating mode, in order in this way to heat up the lubricant in the heating operating mode.
    Type: Grant
    Filed: October 17, 2018
    Date of Patent: December 29, 2020
    Assignee: Bayerische Motoren Werke Aktiengesellschaft
    Inventor: Martin Lasch
  • Patent number: 10862358
    Abstract: Embodiments of the disclosure provide a magnetically geared DC brushless motor and method of using the same. The motor may use multiple separately terminable winding sections wrapped around motor armatures. At least one of the separately terminable winding sections may have windings around adjacent armatures. The motor may be configured to activate certain winding sections to control the velocity and torque outputs of the motor. The winding sections may include copper wire, and the separate winding sections may have wires of different gauge sizes. Various winding sections may be powered by separate voltage sources. Various winding sections may be powered by separate pulse-width modulation voltage sources. The motor may be configured to increase and/or decrease the voltage of a winding section or combination of sections to prepare for the activation or deactivation of another winding section or combination of winding sections.
    Type: Grant
    Filed: January 18, 2018
    Date of Patent: December 8, 2020
    Inventor: Khoa Vu
  • Patent number: 10840788
    Abstract: A first electric stator surrounds a first electric rotor and is configured to cause the first electric rotor to rotate or generate electricity in the first electric stator when the first electric rotor rotates. The first electric stator includes a first set of electric windings. A second electric stator surrounds the second electric rotor and is configured to cause the second electric rotor to rotate or generate electricity in the second electric stator when the second electric rotor rotates. The second electric stator includes a second set of electric windings. The second electric stator is electrically coupled to the first electric stator. A controller is electrically coupled to both the first electric stator and the second electric stator. The controller is configured to exchange an electric current with a combination of the first electric stator and the second electric stator.
    Type: Grant
    Filed: December 28, 2017
    Date of Patent: November 17, 2020
    Assignee: Upwing Energy, LLC
    Inventors: Patrick McMullen, Herman Artinian, Kuo-Chiang Chen, Liping Zheng
  • Patent number: 10784751
    Abstract: A stator includes a first split core having a first yoke part extending in a circumferential direction about an axis line and a first tooth extending from the first yoke part toward the axis line, a second split core having a second yoke part extending in the circumferential direction and a second tooth extending from the second yoke part toward the axis line, a first insulator arranged to surround the first tooth and having a first holding part located between a tip end part of the first tooth and a tip end part of the second tooth, a second insulator arranged to surround the second tooth and having a second holding part located between the tip end part of the first tooth and the tip end part of the second tooth, and a Hall effect sensor held by the first holding part and the second holding part.
    Type: Grant
    Filed: April 8, 2016
    Date of Patent: September 22, 2020
    Assignees: Mitsubishi Electric Corporation, Mitsubishi Electric Home Appliance Co., Ltd.
    Inventors: Naohiro Oketani, Mitsumasa Hamazaki
  • Patent number: 10734875
    Abstract: A rotary electric machine includes a rotor that rotates around a rotation axis serving as a center and has a plurality of salient poles protruding in directions perpendicular to the rotation axis, and a stator that includes an annular structural body disposed radially outside the rotor and surrounding the rotor, and 6×n windings provided along a circumferential direction of the structural body, a field signal for generating field magnetic flux and a drive signal for driving the rotor as a three-phase rotary electric machine being superimposed on each other to be input to each of the windings. n is a natural number equal to or larger than one.
    Type: Grant
    Filed: June 2, 2015
    Date of Patent: August 4, 2020
    Assignee: OSAKA UNIVERSITY
    Inventors: Katsuhiro Hirata, Noboru Niguchi, Yuki Ohno, Akira Kohara, Masayuki Katoh, Hajime Ukaji, Teiichirou Chiba
  • Patent number: 10720821
    Abstract: A direct drive rotary generator formed of an elongate cylindrical series of stator annuli and a coaxial elongate cylindrical series of armature annuli and mounted for relative rotational movement around their common axis, the series of stator annuli interleaving the series of armature annuli, and either of the armature/stator annuli having a contiguous or substantially contiguous sequence of coils around its circumference, and the other of the armature/stator annuli having a corresponding sequence of permanent magnets of alternating polarity spaced around its circumference and at the same pitch as that of the coils, the arrangement being such that lines of magnetic flux passing across the air gap between one magnet carrying annulus to the next cut the turns of the coils of the corresponding interleaved coil carrying annulus, and thus induce in the coils electromagnetic forces as the armature is caused to rotate relative to the stator.
    Type: Grant
    Filed: November 20, 2014
    Date of Patent: July 21, 2020
    Assignee: TIME TO ACT LIMITED
    Inventor: Hugh-Peter Granville Kelly
  • Patent number: 10714999
    Abstract: A rotor for an electric machine, comprising an outer shell for receiving magnets, and a three-dimensional lattice structure arranged within the outer shell where the three-dimensional lattice structure has a unit cell comprising at least a strut and varies in all directions in space including in an axial direction of the rotor.
    Type: Grant
    Filed: April 6, 2017
    Date of Patent: July 14, 2020
    Assignee: WITTENSTEIN SE
    Inventor: Ingolf Gröning
  • Patent number: 10715017
    Abstract: A rotor has a ferromagnetic body with a surface and magnetic poles arranged about a rotation axis. One or more of the magnetic poles has a first magnetic flux barrier and a second magnetic flux barrier. The first magnetic flux barrier is arranged radially between the rotation axis and the surface of the ferromagnetic body. The second magnetic flux barrier is arranged radially between the first magnetic flux barrier and the surface of the ferromagnetic body.
    Type: Grant
    Filed: June 2, 2017
    Date of Patent: July 14, 2020
    Assignee: Hamilton Sundstrand Corporation
    Inventors: Jacek F. Gieras, Gregory I. Rozman
  • Patent number: 10714990
    Abstract: According to one embodiment, a rotating electrical machine includes a shaft, an annular winding, a stator, a rotor, and a core supporter. The annular winding extends in a rotation direction of the shaft. The stator core includes a plurality of stator magnetic poles. The plurality of stator magnetic poles are arranged along the winding. The rotor core includes a plurality of rotor magnetic poles. The plurality of rotor magnetic poles are configured to face the plurality of stator magnetic poles. The core supporter is configured to support at least one of the stator core and the rotor core. The core supporter includes a first insulating section. The first insulating section extends in an axial direction of the shaft. The first insulating section has a slit-shape.
    Type: Grant
    Filed: August 28, 2017
    Date of Patent: July 14, 2020
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Hiroshi Takahashi, Yasuhito Ueda, Takahiro Kokubo
  • Patent number: 10700580
    Abstract: An axial flux electrical machine comprises a first flux generating assembly, a second flux generating assembly, a shaft and a speed controller. The shaft has an axis of rotation. Each of the first flux generating assembly and the second flux generating assembly is rotationally located on the shaft in axial juxtaposition to one another, with the first flux generating assembly being axially separated from the second flux generating assembly by a separation distance. The speed controller is configured to modify a magnetic field generated by either of the first flux generating assembly and the second flux generating assembly so as to control a rotational speed of the electrical machine.
    Type: Grant
    Filed: March 8, 2018
    Date of Patent: June 30, 2020
    Assignee: ROLLS -ROYCE PLC
    Inventor: Chloe Jo Palmer
  • Patent number: 10673297
    Abstract: Electric motors and machines including such electric motors, the electric motors having improved impact resistance. Features of the electric motors minimize axial shifting of the motor shaft and other components of the electric motor, and/or minimize damage to components caused by such axial shifting occasioned by an impact force on the motor.
    Type: Grant
    Filed: December 11, 2017
    Date of Patent: June 2, 2020
    Assignee: McMillan Electric Company
    Inventors: Douglas deHaas McMillan, Ronald James Boltik, Vincent Hall, Dewain Wasson
  • Patent number: 10666098
    Abstract: In one embodiment, a magnet array and ironless winding for a motor is provided which has an array of permanent magnets being arranged such that flux from the permanent magnets reinforce on one side of the array and substantially cancel on an opposite side of the array, the array further includes flux concentrators forming poles on the reinforcing side of the array, and such that a magnetic moment at the poles is oriented generally perpendicular to the reinforcing side of the array, the winding being adjacent to the array and comprising conductor bundles having a generally rectangular cross-section arranged such that a long side of the generally rectangular cross-section is transverse to a direction of magnetic field lines at the poles.
    Type: Grant
    Filed: March 1, 2018
    Date of Patent: May 26, 2020
    Assignee: AeroVironment, Inc.
    Inventors: Bart Dean Hibbs, Bang Xuan Phan
  • Patent number: 10663020
    Abstract: Torque generating devices, systems, and/or related methods are disclosed. In one aspect, a torque generating device (100) may include a housing (102), at least one top and one bottom pole (108), at least one side pole (110), at least two rotors (116) for rotating within the housing, a shaft (104) supported by bearings (111), at least a first stator (120) disposed between portions of the at least two rotors (116), magnetically responsive (MR) material disposed within the housing (102) and at least partially surrounding the first stator (120) and the at least two rotors (116), and a coil (112) for generating a magnetic field, wherein an amount of torque generated by the torque generating device (100) increases in proportion to an amount of electrical current supplied to the coil (112). In another aspect, a method of generating torque may include providing a torque generating device (100) and rotating the at least two rotors (116).
    Type: Grant
    Filed: March 11, 2016
    Date of Patent: May 26, 2020
    Assignee: Lord Corporation
    Inventors: Michael Jarzomski, Luca Di Deco
  • Patent number: 10630156
    Abstract: An axial flux rotary generator comprising: two magnetic annuli; a coil annulus; the magnetic annuli and coil annulus having a common axis; the two magnetic annuli defining a plurality of magnetic fields around the common axis extending across a gap between the two magnetic annuli and the coil annulus having a sequence of coils attached around the common axis in the gap such that lines of magnetic flux from the magnetic fields cut the turns of the coils and thus induce electric current in the coils as the magnetic annuli are caused to rotate relative to the coil annulus; wherein a relative positioning of individual magnetic fields and a relative positioning of centers and sizing of individual coils in the sequence of coils is such that (i) the electric currents in the individual coils of the sequence of coils are in excess of three phases relative to one another, and (ii) the number of common factors other than one between the number of coils in the sequence of coils and the number of individual magnetic field
    Type: Grant
    Filed: November 20, 2015
    Date of Patent: April 21, 2020
    Assignee: TIME TO ACT LIMITED
    Inventor: Hugh-Peter Granville Kelly
  • Patent number: 10608490
    Abstract: A double-rotor single stator axial flux machine, which is supplied having no bearings between the rotors and stator internal of the machine, is mounted to an external structure such as an interface of an engine of a vehicle or a portion of the transmission of a vehicle. The machine is mounted to the structure via the shaft of the machine (on which are seated bearings located in the structure) and the stator housing. The bearings of the structure, which are external to the machine, permit the rotors to rotate relative to the stator when the machine is installed on the structure.
    Type: Grant
    Filed: October 17, 2016
    Date of Patent: March 31, 2020
    Assignee: YASA LIMITED
    Inventors: Tim Woolmer, Christopher Thomas McCaw, Andrew Court
  • Patent number: 10587175
    Abstract: A double-stator rotating electric machine includes a rotor, an outer stator disposed radially outside the rotor with an outer gap formed therebetween, and an inner stator disposed radially inside the rotor with an inner gap formed therebetween. The outer stator has an outer multi-phase coil wound thereon, and the inner stator has an inner multi-phase coil wound thereon. Moreover, the inner gap formed between the inner stator and the rotor is set to be larger than the outer gap formed between the outer stator and the rotor.
    Type: Grant
    Filed: August 7, 2015
    Date of Patent: March 10, 2020
    Assignee: DENSO CORPORATION
    Inventors: Takeo Maekawa, Shin Kusase, Keiji Kondou
  • Patent number: 10581358
    Abstract: An electric machine includes a stator, a rotor, and magnets. The stator includes multiple flux members having ferrous material. The rotor is configured to rotate relative to the stator and spaced from the stator by an air gap. The magnets are rigidly mounted to the flux members of the stator. At least a first magnet and a second magnet of the magnets includes an elongated axis parallel to a radius of the rotor and a minor axis perpendicular to the elongated axis, and a first pole of the first magnet having a first polarity and positioned along the minor axis to face a first pole of the second magnet having the first polarity.
    Type: Grant
    Filed: March 30, 2018
    Date of Patent: March 3, 2020
    Assignee: Kohler Co.
    Inventors: Isaac S. Frampton, Adam Larson
  • Patent number: 10566866
    Abstract: A rotor for an axial flux permanent magnet machine is described. The machine has a stator comprising a stator housing enclosing a set of coils wound on stator bars or teeth and disposed circumferentially at intervals about an axis on the machine, and a rotor bearing a set of permanent magnets and mounted for rotation about the said axis. The rotor and stator are spaced apart along said axis to define a gap therebetween in which magnet flux in the machine is generally in an axial direction. The magnets are disposed circumferentially around said rotor and define a plurality, n, of matching sets of magnets. Each set of magnets includes a plurality of magnets, wherein said n sets of magnets on said rotor have n-fold rotational symmetry. Within a said set, the magnets have different shapes and/or relative circumferential spacings of adjacent magnets within the set of magnets are irregular.
    Type: Grant
    Filed: February 26, 2015
    Date of Patent: February 18, 2020
    Assignee: Yasa Motors Limited
    Inventor: Tim Woolmer
  • Patent number: 10510459
    Abstract: Insulated winding wire articles and associated formation methods are described. An insulated winding wire article may include a conductor and optional base insulation formed around the conductor. The conductor may be formed into a predefined shape having at least one bend, such as a U-shaped bend. A coating comprising parylene may be formed around the conductor and any base insulation.
    Type: Grant
    Filed: May 10, 2019
    Date of Patent: December 17, 2019
    Assignee: Essex Group, Inc.
    Inventors: Allan R. Knerr, David Marshall Cain
  • Patent number: 10457389
    Abstract: The present disclosure provides various embodiments of a multicopter-assisted launch and retrieval system generally including: (1) a multi-rotor modular multicopter attachable to (and detachable from) a fixed-wing aircraft to facilitate launch of the fixed-wing aircraft into wing-borne flight; (2) a storage and launch system usable to store the modular multicopter and to facilitate launch of the fixed-wing aircraft into wing-borne flight; and (3) an anchor system usable (along with the multicopter and a flexible capture member) to retrieve the fixed-wing aircraft from wing-borne flight.
    Type: Grant
    Filed: February 15, 2017
    Date of Patent: October 29, 2019
    Assignee: Hood Technology Corporation
    Inventors: Andreas H. von Flotow, Corydon C. Roeseler, Daniel Pepin Reiss
  • Patent number: 10461614
    Abstract: A rotor for an electrical machine is provided, comprising a main rotor (2), which can be rotated about a longitudinal axis (3) and which is free of permanent magnets, and having an auxiliary rotor (5), which comprises at least one axial flux rotor (6), which can also be rotated about the longitudinal axis (3) and is arranged in axial direction adjacent to the main rotor (2), in which the axial flux rotor (6) comprises permanent magnets (8). Furthermore, an electrical machine with the rotor (2, 5) and a stator (1) is provided.
    Type: Grant
    Filed: July 13, 2016
    Date of Patent: October 29, 2019
    Assignee: FEAAM GmbH
    Inventor: Gurakuq Dajaku
  • Patent number: 10447124
    Abstract: Pairs of unidirectionally magnetic rotor/stator assemblies are mounted for synchronous rotation and complementary, so that one creates pulsating positive current flow and the other creates pulsating negative current flow, as the rotor and stator in each assembly are rotated with respect to each other. The pulsating positive current flow and pulsating negative current flow are combined at a desired phase angle to create alternating current, without power loss due to reversal of current flow.
    Type: Grant
    Filed: May 18, 2017
    Date of Patent: October 15, 2019
    Assignee: Pacific International Energy Solutions Inc.
    Inventor: Sunny Ouray Stevens
  • Patent number: 10439452
    Abstract: Disclosed are various embodiments for a new and improved electrical motor/generator, specifically a motor/generator comprising: a plurality of coils radially positioned about a coil assembly, a plurality of magnetic tunnels forming a relative rotational path for the coil assembly, wherein the all of plurality of magnets forming each magnetic tunnel have like poles facing inward toward the interior of the magnetic tunnel or facing outward away from the interior of the magnetic tunnel such that each magnetic field of any magnetic tunnel is of an opposite polarity to the magnetic field of an adjacent magnetic tunnel.
    Type: Grant
    Filed: April 3, 2019
    Date of Patent: October 8, 2019
    Assignee: LINEAR LABS, LLC
    Inventor: Fred E. Hunstable
  • Patent number: 10431364
    Abstract: A device such a coil where each components of the electrical structures are completely encapsulated by a magnetic material in a manner that all the magnetic field generated makes a closed loop through a core, amplified and oriented in wished direction. The coil using this manufacturing method is destined to stators, rotors for axial, radial rotating or linear electric motors, transformers and all devices that generate a magnetic field (non-exhaustive list).
    Type: Grant
    Filed: May 13, 2014
    Date of Patent: October 1, 2019
    Assignee: C&C TECHNOLOGIES, LLC
    Inventor: Petre Serban Stefanescu
  • Patent number: 10407178
    Abstract: A propulsion system assembly is provided including a driveshaft and a plurality of electric motor modules. The driveshaft is rotatably mounted to a casing about a drive axis, the driveshaft including a first shaft end and an opposite facing second shaft end. The plurality of electric motor modules are in axially stacked relationship with one another with respect to the drive axis to define an electric motor module stack, each electric motor module being configured for transmitting a torque to the driveshaft when coupled thereto independently of at least one other electric motor module. Each electric motor module includes a controllable clutch arrangement for selectively coupling and decoupling the respective electric motor module with respect to the driveshaft to respectively enable and disable transmission of torque between the respective electric motor module and the driveshaft.
    Type: Grant
    Filed: July 29, 2015
    Date of Patent: September 10, 2019
    Assignee: ISRAEL AEROSPACE INDUSTRIES LTD.
    Inventor: Eyal Regev
  • Patent number: 10404146
    Abstract: A rotary electric machine includes: a stator including a stator core and a stator coil wound around the stator core; and an annular outer rotor including an outer core disposed around an outer periphery of the stator and a plurality of outer magnets arranged at intervals in a circumferential direction, in which the stator core has an annular yoke and a plurality of outer teeth protruding radially outward from an outer periphery of the yoke, the outer magnets are magnetized in the circumferential direction such that magnetization directions of the outer magnets adjacent to each other in the circumferential direction are opposite to each other in the circumferential direction, and a circumferential distance of a gap between the outer magnets adjacent to each other is 1.5 times or more a disposition pitch in the circumferential direction of the outer teeth.
    Type: Grant
    Filed: November 6, 2017
    Date of Patent: September 3, 2019
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hiroyuki Hattori, Shinji Wakamatsu, Shinya Urata
  • Patent number: 10396612
    Abstract: In a permanent magnet type concentrated winding motor, the number of magnetic poles is M, a stator Sr has an N number of teeth T around which coils are concentratedly wound and which are circumferentially arranged at equal intervals, M is equal to (18±4)n and N is equal to 18n, an armature winding AW has an m number of parallel circuits, and a 1-phase circuit of the parallel circuits is configured to have a 6n/m number of coils connected in series with each other.
    Type: Grant
    Filed: December 2, 2011
    Date of Patent: August 27, 2019
    Assignee: Mitsubishi Electric Corporation
    Inventors: Masatsugu Nakano, Satoru Akutsu, Yoshihito Asao, Yuji Takizawa, Yu Hirotani, Ryuichi Takiguchi
  • Patent number: 10381890
    Abstract: An axial gap type dynamo-electric machine (1) comprises: a stator (2) provided with a magnetic core (21) and an exciting coil (22); a rotor (3) provided with a plurality of permanent magnets (4) circumferentially arranged around a rotation center axis (AX), the rotor (3) being also provided with a disk-shaped base material (31) for supporting the permanent magnets, the rotor (3) being disposed at an axial distance from the stator (2); and affixation members (5) for affixing the permanent magnets (4) to the base material (31). The permanent magnets (4) are provided with front surfaces facing the stator (2), rear surfaces facing the base material, and engagement-receiving sections (412, 422, 432) formed at peripheral edges of the permanent magnets (4). The affixation members (5) include: engagement sections (512) engaging the engagement-receiving sections; and affixation sections (511) forming mechanical affixation structures relative to the base material.
    Type: Grant
    Filed: July 20, 2016
    Date of Patent: August 13, 2019
    Assignee: Kobe Steel, Ltd.
    Inventors: Koji Inoue, Takashi Hiekata, Hiroaki Kawai, Shintaro Sasai, Tetsuya Ogawa, Toshiro Yamashita, Shingo Kasai, Shumpei Hayashi
  • Patent number: 10374499
    Abstract: The present invention provides a power generator which can obtain efficient power generation by changing magnetic force acting on electromotive coils. The power generator is provided with a first permanent magnet member 1, a second permanent magnet member 2, and an electromotive coil member 3 arranged concentrically to have a telescoping structure and is configured so that power generation in the electromotive coil member 3 is induced by rotating the first permanent magnet member 1 or/and the second permanent magnet member 2. In the power generator, the first and second permanent magnet members 1 and 2 cooperate with each other to change the magnetic force and, thus, to obtain efficient power generation.
    Type: Grant
    Filed: January 4, 2017
    Date of Patent: August 6, 2019
    Assignee: T. K LEVERAGE CO., LTD.
    Inventor: Takaitsu Kobayashi
  • Patent number: 10340777
    Abstract: A downhole electric submersible pump, with at least one pump unit having a pump inlet, and an electric motor system to power the pump, the electric motor system comprising an induction motor and permanent magnet motor. The induction motor and permanent magnet motor share a common power supply, connected in series.
    Type: Grant
    Filed: November 17, 2014
    Date of Patent: July 2, 2019
    Assignee: COREteQ Systems Ltd.
    Inventors: Philip Head, Hassan Mansir
  • Patent number: 10330542
    Abstract: A torque sensor assembly for use in a vehicle power steering system has magnets, coaxial first, second, and third flux closure members around the magnets, and first and second magnetic sensors. Each of the plurality of magnets emits a magnetic field. The second flux closure member is between the first and third flux closure members. The first and third flux closure members collect the magnetic fields having a first polarity. The second flux closure member collects the magnetic fields having a second polarity that is opposite the first polarity. The first and second magnetic sensors are positioned to have like polarity. The first sensor is between the first and second flux closure members. The second sensor is between the second and third flux closure members. A torque signal is calculated by subtracting a second signal generated by the second sensor from a first signal generated by the first sensor.
    Type: Grant
    Filed: April 20, 2017
    Date of Patent: June 25, 2019
    Assignee: TRW Automotive U.S. LLC
    Inventor: Robert Pearce
  • Patent number: 10320270
    Abstract: A hybrid dual-rotor motor structure is provided, which may include a stator, a first rotor, a second rotor, a first coil, and a second coil. The stator may include a plurality of stator teeth. The first rotor, the second rotor, and the stator may arranged in the radial direction of the hybrid dual-rotor motor structure. The first coil may be wound on the stator teeth. The second coil may be wound on the stator teeth; the second coil may include a plurality of sub-coil sets; each of the sub-coil sets may include a plurality of sub-coils connected to each other/one another in series or in parallel; the pole-pair number of the second coil may be the integral multiple of the pole-pair number of the first coil.
    Type: Grant
    Filed: December 14, 2015
    Date of Patent: June 11, 2019
    Assignee: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Ming-Tsan Peng, Shian-Hsuan Huang
  • Patent number: 10312782
    Abstract: A double stator permanent magnet machine includes an inner stator having a back iron and a set of inner stator poles connected to the back iron, a rotor having a shaft and a set of segments, each segment having a permanent magnet, adjacent the inner stator and rotatively coupled to the inner stator, an outer stator having a set outer stator poles, adjacent the rotor and rotatively coupled to the rotor, a set of inner windings disposed between each of the inner stator poles, and a set of outer windings disposed between each of the outer stator poles.
    Type: Grant
    Filed: June 27, 2014
    Date of Patent: June 4, 2019
    Assignee: The Board of Regents, The University of Texas System
    Inventors: Babak Fahimi, Wei Wang
  • Patent number: 10295376
    Abstract: A multi-turn non-contact sensor includes a rotationally mounted driver magnet, and a rotationally mounted driven magnet. The driver magnet has a first number (P1) of magnetic poles and is configured to selectively receive a rotational drive torque and, upon receipt of the drive torque, to rotate about a first rotational axis. The driven magnet is spaced apart from, and is coupled to receive a magnetic force from, the driver magnet. The driven magnet has a second number (P2) of magnetic poles and is responsive to rotation of the driver magnet to rotate about a second rotational axis that is parallel to the first rotational axis. The driven magnet rotates one complete revolution each time the driver magnet rotates a predetermined number (N) of complete revolutions, P2>P1, and N=(P2/P1).
    Type: Grant
    Filed: September 14, 2016
    Date of Patent: May 21, 2019
    Assignee: Honeywell International Inc.
    Inventor: Kumaran Sena Narasimhan
  • Patent number: 10284029
    Abstract: Disclosed are various embodiments for an improved generator/motor and a method of generating current, the method comprising providing a circular rotation path, generating a concentrated magnetic field around a portion of the circular rotation path; rotating a coil along the circular path and through the concentrated magnetic field; generating current within the coil as a result of the rotating, and extracting the current from the coil.
    Type: Grant
    Filed: September 25, 2015
    Date of Patent: May 7, 2019
    Assignee: LINEAR LABS, LLC
    Inventor: Fred E. Hunstable
  • Patent number: 10270323
    Abstract: A low resistance generator includes a series of stator plates and rotors. Stator plates include the coils wrapped around coil spools. The stator plates and coil spools are made from non-conductive and non-ferromagnetic material. The coils are exposed to the surrounding air and cooled convectively by airflow caused by a rotation of the rotors in the gaps. Rotors house magnets and are disposed within gaps between the stator plates. The rotors are also made of non-conductive and non-ferromagnetic materials. The magnets may be disposed on the rotors to form columns. Two columns of magnets are joined together to form one or more closed magnetic loops, each column being joined by a gauss bridge disposed at first and second end rotors.
    Type: Grant
    Filed: March 6, 2018
    Date of Patent: April 23, 2019
    Inventor: Daniel Farley
  • Patent number: 10270305
    Abstract: A motor-generator includes a stator disposed along a centerline including a stator pole, a first stator winding and a second stator winding, wherein the first stator winding is wound on the stator pole and the second stator winding is wound on the stator pole, and at least one rotor axially disposed from the stator along the centerline.
    Type: Grant
    Filed: December 7, 2015
    Date of Patent: April 23, 2019
    Assignee: HAMILTON SUNDSTRAND CORPORATION
    Inventors: Jacek F. Gieras, Gregory I. Rozman
  • Patent number: 10254133
    Abstract: An excitation winding is wound around each tooth of a detecting stator core. First output winding and second output winding are wound around mutually different teeth while avoiding winding of the output windings with the same phase around two teeth adjacent to each other in a circumferential direction. When the number of pole pairs of the excitation winding is M that is an integer equal to or greater than 1 and the number of salient poles of a detecting rotor is N that is an integer equal to or greater than 1, a spatial distribution of the number of turns in each of the first and second output winding is obtained by a function represented by a sine wave of a spatial order |M±N|. An error spatial order ? represented by |M?|M±N? and an error spatial order ? represented by |??M| are values other than 1 and 2.
    Type: Grant
    Filed: December 9, 2013
    Date of Patent: April 9, 2019
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Ryuichi Takiguchi, Morishige Minobe, Satoru Nakada, Shuhei Niikura, Naohiro Motoishi, Yusuke Morita, Takanori Komatsu
  • Patent number: 10243437
    Abstract: A permanent magnet rotor and a permanent magnet rotary assembly are provided. The permanent magnet rotor includes a rotor core, a plurality of permanent magnets and a non-magnetic retaining ring. The rotor core is magnetically permeable. The rotor core has an outer surface and a plurality of dovetail grooves on the outer surface. The permanent magnets are respectively disposed in the plurality of dovetail grooves. The non-magnetic retaining ring is inserted over the rotor core. The plurality of permanent magnets are surrounded by the non-magnetic retaining ring. The non-magnetic retaining ring is magnetically impermeable.
    Type: Grant
    Filed: December 13, 2016
    Date of Patent: March 26, 2019
    Assignee: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Kun-Yi Liang, Tse-Liang Hsiao, Chien-Chang Wang