Plural Rotary Elements Patents (Class 310/114)
  • Patent number: 11466655
    Abstract: A vehicle propulsion system comprises a combustion engine with a flywheel secured to a crank shaft of the engine. A starter motor and a generator are combined in one electric machine having a stator rigidly connected to a vehicle frame fixed part and provided with windings connected to an arrangement storing electric energy for being fed with electric energy from the arrangement in motor operation of the electric machine and feeding electric energy to the arrangement in generator operation of the electric machine and a rotor connected to the flywheel so as to make the rotor and flywheel rotating in dependence of each other. At least one of the stator and rotor has a member projecting into a recess portion of the other so as to form air gaps for magnetic flux between the rotor and the stator on both sides of the projecting member.
    Type: Grant
    Filed: July 4, 2018
    Date of Patent: October 11, 2022
    Assignee: Scania CV AB
    Inventors: Mehran Arefi-Sigaroodi, Holger Dreher
  • Patent number: 11454172
    Abstract: A starter/generator system that includes a first and second electric machine. The first electric machine has a first rotor and a first stator where the first rotor is adapted to receive kinetic energy and the first stator includes a first set of windings. The second electric machine has a second rotor rotatable and a second stator. The second stator is fixed relative to the first stator and the second stator includes a second set of windings.
    Type: Grant
    Filed: December 26, 2019
    Date of Patent: September 27, 2022
    Assignee: Unison Industries, LLC
    Inventors: Balamurugan Sridharan, David Raju Yamarthi, Parmeet Singh Chhabra, Brian Christopher Kemp, Shiloh Montegomery Meyers
  • Patent number: 11452659
    Abstract: A joint actuator assembly incudes a motor, a rotating driving member driven by the motor for driving a driven component, and a transmission assembly located between the motor and the rotating driving member that provides speed reduction from the motor to the rotating driving member. The rotating driving member includes a magnetic/electrical coupling comprising a magnetic coupling component configured to magnetically couple with an opposing magnetic coupling of the driven component, and an electrical element configured to provide an electrical connection to an opposing electrical element of the driven component. The actuator and driven component may be combined into a mobility device including a magnetic/electrical coupling system comprising a first magnetic/electrical coupling on the actuator assembly that magnetically and electrically couples to a second magnetic/electrical coupling on the driven component.
    Type: Grant
    Filed: January 17, 2018
    Date of Patent: September 27, 2022
    Assignee: Parker-Hannifin Corporation
    Inventors: Ryan Farris, Steven Etheridge, Scott Morrison
  • Patent number: 11441675
    Abstract: The present disclosure provides an inhibitor integrated actuator shift control device capable of controlling a position of a gear shift by improving control performance and durability through position control of a brushless direct current (BLDC) motor by an inductive sensor, forming a metallic uneven portion on an output shaft flange part of a reducer, and detecting a variation amount in induced current due to the metallic uneven portion.
    Type: Grant
    Filed: May 29, 2020
    Date of Patent: September 13, 2022
    Assignees: KYUNG CHANG INDUSTRIAL CO., LTD, SAM HYUN CO., LTD.
    Inventors: Dong Won Kim, Sung Joon Maeng, Dae Yeon Kim, Jin Heo, Tae Keuk Choi, Jeong Seok Kim
  • Patent number: 11404942
    Abstract: A motor stator assembly, a synchronous motor and a passenger transport device are provided by the present disclosure. The motor stator assembly includes: a stator base disposed axially around a motor drive shaft, the stator base having a receiving space and two stator end faces, and the receiving space being disposed between the two stator end faces and disposed along a circumferential outer side of the stator base; and a plurality of coil assemblies each inserted in the receiving space in a radial direction of the stator base. According to the motor stator assembly, the synchronous motor and the passenger transport device of the present disclosure, by providing a plurality of coil assemblies inserted in the stator base, the maintenance or replacement can be performed as needed, the maintenance is convenient, and less time-consuming, and also has reliable performances.
    Type: Grant
    Filed: August 14, 2019
    Date of Patent: August 2, 2022
    Assignee: OTIS ELEVATOR COMPANY
    Inventor: Lib Li
  • Patent number: 11349372
    Abstract: There is provided a combustion engine and an electric generator. The combustion engine comprises an engine housing, a cylindrical member configured to rotate about an axis within a cavity of the engine housing, a piston, and an engagement section for engaging the piston. The piston is mounted to the engine housing and the engagement section is mounted to the cylindrical member, or the piston is mounted to the cylindrical member and the engagement section is mounted to the engine housing, such that the piston and the engagement section periodically rotate past one another as the cylindrical member is rotated within the engine housing. The piston engages the engagement section as they rotate past one another, the engagement forcing the piston to compress gases in a combustion chamber, which fire to drive the rotation of the cylindrical member. The electric generator may be driven by the combustion engine.
    Type: Grant
    Filed: March 28, 2018
    Date of Patent: May 31, 2022
    Inventor: Christopher J. Hale
  • Patent number: 11325643
    Abstract: Provided are an apparatus for detecting a steering angle, a steering system, and a torque sensing method of the steering system. The apparatus includes a rotor formed in a cylindrical shape having a central region, in which a space for housing a rotary shaft is formed, and configured to have a plurality of permanent magnets of different polarities alternately disposed at regular intervals in a circumferential direction, a stator body formed in a cylindrical shape having a space for housing the rotor, and two stator rings formed in ring shapes coupled to the stator body and disposed at a certain distance in a longitudinal direction of the rotary shaft. Accordingly, it is possible to calculate an accurate torque, and a response rate is increased so that stability and performance of the steering system can be improved.
    Type: Grant
    Filed: November 1, 2018
    Date of Patent: May 10, 2022
    Assignee: MANDO CORPORATION
    Inventor: Woo Seok Won
  • Patent number: 11287477
    Abstract: A magnetic performance measuring device for serialized claw-pole generator rotors is consisted with: an excitation power supply turn-on mechanism, a rotor magnetic field detecting mechanism, a measuring position adjusting mechanism and a pressing mechanism that are successively and fixedly arranged, wherein the rotor magnetic field detecting mechanism including a detection box, a positioning base, an adjusting ring, a shaft sleeve and a serialized grooved magnetic conduction ring that are successively arranged in the detection box, and the adjusting ring and the shaft sleeve are used to position different models of tested rotors to achieve a serialized measurement.
    Type: Grant
    Filed: July 2, 2019
    Date of Patent: March 29, 2022
    Assignees: UNIV SHANGHAI JIAOTONG, JIANGSU LONGCHENG PREC FORGING CO., LTD.
    Inventors: Zhen Zhao, Chengliang Hu, Minjun Tang, Xiaofeng Tang, Jinsheng Cheng, Wei Sun
  • Patent number: 11289956
    Abstract: A rotating electric device comprising: an outer stator (210) comprising an outer stator iron core (211) having a plurality of outer stator winding slots (213) formed on the inner peripheral surface thereof at a predetermined interval in the circumferential direction, and an outer winding (510) wound around an outer stator iron core tooth (218) relatively formed by a pair of outer stator winding slots (213) adjacent to each other; an inner stator (220) comprising an inner stator iron core (221) having a plurality of inner stator winding slots (223) formed on the outer peripheral surface thereof at a predetermined interval in the circumferential direction; and a rotor (300) having, between the outer stator (210) and the inner stator (220).
    Type: Grant
    Filed: September 27, 2018
    Date of Patent: March 29, 2022
    Inventor: Dohyun Kang
  • Patent number: 11271463
    Abstract: A motor comprising: (a) a stator having a plurality of ferrous cores surrounded by a plurality of windings; (b) a pair of rotors positioned on opposing sides of the stator, each rotor including a ring gear; and (c) a drive shaft extending through a cutout of the stator, the drive shaft having a pinion gear positioned near an end of the drive shaft in communication with the ring gears of the rotors; wherein the rotors rotate in opposing directions so that the ring gears translate a movement of the rotors to the drive shaft through the pinion gear to rotate the drive shaft in a direction substantially orthogonal to a direction of rotation of the rotors.
    Type: Grant
    Filed: October 16, 2020
    Date of Patent: March 8, 2022
    Assignee: CSAW STUDIOS L.L.C.
    Inventor: Seanan R. Holland
  • Patent number: 11236455
    Abstract: A control unit comprises a calculation unit, a determination unit, and a motor rotation control unit. The calculation unit calculates the rate of change in water level, which indicates the amount of change in water level per a predetermined period of time, on the basis of the result of sensing by a water level sensor in connection with a water supply stroke. The determination unit determines whether laundry having a waterproof property is contained in a drum or not on the basis of the rate of change in water level during the water supply stroke calculated by the calculation unit. When it is determined that laundry having a waterproof property is contained in the drum, the motor rotation control unit controls the operation of a driving motor such that the drum is rotated at a predetermined number of rotations or less during the dewatering stroke.
    Type: Grant
    Filed: December 21, 2016
    Date of Patent: February 1, 2022
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Atsushi Ohyagi, Nobuhiko Shinohara, Minsu Kim, Hiroki Takita
  • Patent number: 11233429
    Abstract: The electrical motor includes a stator and a rotor configured to be rotated about an axis wherein the rotor includes at least three rotor subsegments, wherein a first and second rotor subsegment can be turned relative to one another about the axis in response to a rotation speed range being above a predetermined threshold value of a rotation speed of the electrical machine.
    Type: Grant
    Filed: March 23, 2018
    Date of Patent: January 25, 2022
    Assignee: Schaeffler Technologies AG & CO. KG
    Inventors: Miriam Engler, Peter Schwanemann, Matthias Gramann, Wolfgang Reik, Carsten Angrick
  • Patent number: 11233444
    Abstract: There is provided a system comprising a brushless DC (“BLDC”) electric motor for a propeller engine and a motor controller. The motor comprises a rotor including one or more permanent magnets and one or more alternator windings, and a stator including one or more stator windings. The controller is configured to apply a first, transient DC voltage to the windings of the stator, wherein the first, transient DC voltage is configured to provide commutation switching for the windings of the stator so as to generate a torque on the rotor. The controller is further configured to apply a second, static DC voltage to the windings of the stator, wherein the second, static DC voltage is configured to induce an electric current in the alternator windings so as to generate an AC voltage in the alternator windings.
    Type: Grant
    Filed: December 12, 2019
    Date of Patent: January 25, 2022
    Assignee: RATIER-FIGEAC SAS
    Inventor: Bruno Seminel
  • Patent number: 11183890
    Abstract: A permanent magnet electric motor for a vehicle comprises a stator comprising a round wire defining N portions and a stator lamination defining an inner surface, N slots, and N/2 alternating, full-slot-width apertures in the inner surface, wherein the N portions of the round wire are disposed in the N slots, respectively, and a rotor comprising M permanent magnet assemblies defining M respective poles, each of the M permanent magnet assemblies comprising a pair or bar magnets arranged in a V-shaped configuration with respect to each other, wherein N equals 6 and M equals 4 or N and M equal respective double multiples thereof, and a rotor lamination having the M permanent magnet assembles disposed therein and defining, for each of the M permanent magnet assemblies, at least three sets of air pockets disposed proximate to the respective permanent magnet assembly.
    Type: Grant
    Filed: October 2, 2019
    Date of Patent: November 23, 2021
    Assignee: FCA US LLC
    Inventor: Arfakhshand Qazalbash
  • Patent number: 11183896
    Abstract: An axial field rotary energy device or system includes an axis, a PCB stator and rotors having respective permanent magnets. The rotors rotate about the axis relative to the PCB stator. A variable frequency drive (VFD) having VFD components are coupled to the axial field rotary energy device. An enclosure contains the axial field rotary energy device and the VFD, such that the axial field rotary device and the VFD are integrated together within the enclosure. In addition, a cooling system is integrated with the enclosure to cool the axial field rotary energy device and the VFD.
    Type: Grant
    Filed: January 11, 2021
    Date of Patent: November 23, 2021
    Assignee: Infinitum Electric, Inc.
    Inventors: Paulo Guedes-Pinto, Rich Lee, Jerad Park, Ben Schuler, Mark Preston, Michael Gray
  • Patent number: 11128209
    Abstract: This application relates to translating mechanical energy from a low-speed rotor to a high-speed rotor or vice versa in a magnetic gearbox. More specifically, this application discloses various embodiments of a coaxial magnetic gearbox with flux concentration Halbach rotors. In certain implementations, the device further comprises a circular back iron (or other ferromagnetic material) disposed concentrically along the axis of the cylindrical magnetic gearing device. In such embodiments, this flux concentration back iron (or ferromagnetic pole) improves the torque density and can also help retain the magnets in place.
    Type: Grant
    Filed: March 16, 2018
    Date of Patent: September 21, 2021
    Assignee: Portland State University
    Inventor: Jonathan Bird
  • Patent number: 11121596
    Abstract: A stator of a brushless motor includes a stator core and a plurality of coils. The stator core includes a base portion having an annular plate shape and a plurality of teeth protruding from one surface of the base portion in an axial direction and disposed in a circumferential direction. The plurality of coils is respectively wound by concentrated winding along peripheral surfaces of the plurality of teeth. The base portion includes an inner circumferential edge that is recessed radially outward from an inner end of each of the plurality of teeth or the base portion includes an outer circumferential edge that is recessed radially inward from an outer end of each of the plurality of teeth.
    Type: Grant
    Filed: February 23, 2017
    Date of Patent: September 14, 2021
    Assignee: DENSO CORPORATION
    Inventors: Akihisa Hattori, Yoji Yamada, Koji Mikami, Seiya Yokoyama
  • Patent number: 11108292
    Abstract: An electric motor control system including an electric motor having a winding with a first and second end, a motor controller having a phase lead, the motor controller operable to direct a phase current to the phase lead. The electric motor control system also includes a first switching device that provides an electrical connection between the phase lead and the first end of the first winding when in a disabled state, and thereby flowing the phase current from the phase lead to the first end of the first winding, and a second switching device operably connected to the motor controller and providing an electrical connection between the second end of the first winding and a common point, when in an enabled state. The motor controller is operable to change the state of the first switching device to enabled, and the second switching device to disabled, under selected conditions.
    Type: Grant
    Filed: October 31, 2018
    Date of Patent: August 31, 2021
    Assignee: HAMILTON SUNDSTRAND CORPORATION
    Inventors: Andreas C. Koenig, Joseph Kenneth Coldwate
  • Patent number: 11089931
    Abstract: A fan unit in which a structure of a fan and a driving source thereof is improved to realize stable and high-efficient fan driving, thereby obtaining a high suction force in a stick type electric cleaner. The fan unit installed in a stick type electric cleaner includes a first fan and a second fan disposed in a line on the same rotation axis and a driving motor configured to drive the first fan and the second fan. The second fan is configured to be rotated in a direction opposite of a direction in which the first fan is rotated.
    Type: Grant
    Filed: March 6, 2018
    Date of Patent: August 17, 2021
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Minoru Yoshida, Takeaki Ashimori
  • Patent number: 11088602
    Abstract: A non-mechanical differential coaxial counter-rotating power device (100) includes an inner shaft (51), an outer shaft (52), a reluctance rotor (30), a permanent magnet rotor (40), a stator (10) and a driving device (20). The outer shaft (52) is fitted over the inner shaft (51), an end of the inner shaft (51) protruding from the outer shaft (52). The reluctance rotor (30) is connected to one of the end of the inner shaft (51) and an end of the outer shaft (52), and the permanent magnet rotor (40) is connected to the other one of the end of the inner shaft (51) and the end of the outer shaft (52). The stator (10) is coaxially disposed with the reluctance rotor (30) and disposed at an inner side or an outer side of the reluctance rotor (30) opposite to the permanent magnet rotor (40). The stator (10) includes a stator core (11) and a main winding (12) and an auxiliary winding (13), and the main winding and the auxiliary winding are wound around the stator core (11).
    Type: Grant
    Filed: November 30, 2017
    Date of Patent: August 10, 2021
    Assignees: GUANGDONG WELLING MOTOR MANUFACTURING CO., LTD., MIDEA WELLING MOTOR TECHNOLOGY (SHANGHAI) CO., LTD.
    Inventors: Di Wu, Jintao Chen, Ziqiang Zhu, Hongxiao Wang
  • Patent number: 11088638
    Abstract: A method for reducing a cogging torque produced by at least two brushless electric motors used simultaneously includes determining a period of the cogging torque for each of the two brushless electric motors and putting the period for each motor into phase opposition. Each of the brushless electric motors may include a rotor connected to an output shaft and a stator. The rotor may include at least one permanent magnet, and the stator may have at least two receiving volumes for at least three coils generating a magnetic field.
    Type: Grant
    Filed: November 5, 2019
    Date of Patent: August 10, 2021
    Inventor: Sylvain Abraham
  • Patent number: 11052997
    Abstract: A dual-rotor wing motor includes a sleeve separating an inner shaft from an outer shaft. An external bearing is independently coupled to a shaft cover while an internal bearing is independently coupled to the inner shaft, and thus the external bearing and the internal bearing independently bear a friction force due to the rotation of the respective single shaft, the heat generated by the friction force can be reduced and the lubricant cannot be easily evaporated. Accordingly, the service life of the dual-rotor wing motor of the present invention can be prolonged.
    Type: Grant
    Filed: December 21, 2018
    Date of Patent: July 6, 2021
    Inventor: Peng Yu Huang
  • 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: 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: 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: 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: 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: 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: 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: 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: 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: 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: 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: 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: 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: 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: 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: 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: 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