Patents Examined by Tran N Nguyen
  • Electric machine with independent rotor cooling device, generator arrangement and wind turbine
    Patent number: 11371488
    Abstract: The invention relates to an electric machine (2) comprising a stator (2) and a rotor that can rotate relative to the stator (2), the rotor (3) having a plurality of permanent magnets (5), also comprising a rotor cooling device (8) for cooling the rotor (3), wherein the rotor cooling device (8) comprises at least one cooling device (23) for providing a cooling air flow, said rotor cooling device (8) comprises a control device (22) which is designed to control at least one cooling device (23) for adjusting a coolant power provided by the cooling air flow.
    Type: Grant
    Filed: January 9, 2018
    Date of Patent: June 28, 2022
    Assignee: FLENDER GMBH
    Inventor: Roland Zeichfüssl
  • Rotary electric machine
    Patent number: 11374455
    Abstract: A rotary electric machine includes: a rotor which has two poles, and a stator in which eighty four slots are formed, wherein conductors are connected in an order of a conductor X+1t, a conductor X?1b, a conductor X+3t, a conductor X?4b, a conductor X+6t, a conductor X?6b, a conductor X+8t, a conductor X?8b, a conductor X+10t, a conductor X?10b, a conductor X+11t, a conductor X?11b, a conductor X+13t, and a conductor X?13b, in first U, V and W phase series circuits; and conductors are connected in an order of a conductor X+2t, a conductor X?2b, a conductor X+4t, a conductor X?3b, a conductor X+5t, a conductor X?5b, a conductor X+7t, a conductor X?7b, a conductor X+9t, a conductor X?9b, a conductor X+12t, a conductor X?12b, a conductor X+14t, and a conductor X?14b, in second U, V and W phase series circuits.
    Type: Grant
    Filed: July 27, 2017
    Date of Patent: June 28, 2022
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventor: Nobuyuki Sora
  • Flywheel energy storage fan
    Patent number: 11368070
    Abstract: A flywheel energy storage fan includes a base seat, a fan electrical apparatus serving as a motor or a generator and a flywheel energy storage device having a flywheel rotary body. The base seat has a case section and a central column section disposed on the case section. The case section has a vacuumed chamber and a bearing cup disposed in the vacuumed chamber. The fan electrical apparatus has a rotational shaft. The rotational shaft is rotatably disposed in the central column section and the bearing cup. The flywheel rotary body is disposed on the rotational shaft in the vacuumed chamber. The flywheel energy storage fan is able to save electrical energy.
    Type: Grant
    Filed: August 5, 2019
    Date of Patent: June 21, 2022
    Assignee: ASIA VITAL COMPONENTS CO., LTD.
    Inventors: Bor-Haw Chang, Yu-Tzu Chen
  • Stacked lamination rotor
    Patent number: 11362558
    Abstract: The invention is a flywheel rotor that includes a number of adjacent laminations, stacked one on top of another, where each of the laminations has the same shape and is rotationally symmetric around a center axis, and where the shape is substantially circular and includes a plurality of protrusions on the circumference, and each of the laminations includes at least one hole for at fastening bolts to pass through. The invention typically includes an endplate at each end of stack of laminations and one of the two endplates attaches to a stubshaft.
    Type: Grant
    Filed: February 11, 2020
    Date of Patent: June 14, 2022
    Assignee: AMBER KINETICS, INC.
    Inventors: Seth R. Sanders, Kyle B. Gaiser, Greg Olsen, Mark J. Holloway, Roger Nelson Hitchcock, Peter Thomas Tennessen, Matthew K. Senesky, Edward Young Chiao, Darlene W. Conolly, Keenan William Rodewald
  • Electric machine with stator base as common heat sink
    Patent number: 11355985
    Abstract: An electric machine includes a rotor configured to rotate about an axis of rotation, a stator having a plurality of teeth annularly arranged on a stator core about the axis of rotation, a plurality of electromagnetic coils, and a base plate. Each coil of the plurality of electromagnetic coils may be mounted on a separate tooth of the plurality of teeth, and the base plate may be located adjacent to the plurality of electromagnetic coils and the stator core. The base plate may be in thermal contact with the plurality of electromagnetic coils and the stator core such that as the plurality of electromagnetic coils and the stator core heat during operation, the base plate is configured to serve as a common heat sink for the plurality of electromagnetic coils and the stator core.
    Type: Grant
    Filed: October 4, 2021
    Date of Patent: June 7, 2022
    Assignee: EVR MOTORS LTD
    Inventors: Victor Kislev, Oleg Gaspar, Ruslan Shabinski, Eliyahu Rozinsky
  • Large scale flywheel for energy storage
    Patent number: 11355997
    Abstract: Flywheel for energy storage, comprising a rotor, a housing enclosure, means for charging energy by transferring electric energy to stored kinetic energy in the rotating rotor and means for discharging energy by transferring stored kinetic energy in the rotating rotor to electric energy, distinctive in that the rotor is vertically oriented, the rotor has mass of over 5000 kg, the rotor comprises a central vertical shaft, a radial bearing is arranged to an upper end of the vertical shaft, an axial-radial hydraulic bearing, or separate axial and radial bearings, is arranged to a lower end of the vertical shaft.
    Type: Grant
    Filed: February 15, 2018
    Date of Patent: June 7, 2022
    Assignee: BERGAN TECHNOLOGY AS
    Inventor: Pål G. Bergan
  • Rotor with a winding for an electrical machine
    Patent number: 11355986
    Abstract: A rotor for an electrical machine, comprising: a rotor stack with a plurality of pole teeth and windings around the pole teeth, a plurality of groove wedges, which are arranged radially above the windings, in grooves between the pole teeth, characterised in that a support element is arranged in the grooves between the windings and radially between the groove wedges and the rotor stack.
    Type: Grant
    Filed: November 29, 2019
    Date of Patent: June 7, 2022
    Assignee: VALEO SIEMENS EAUTOMOTIVE GERMANY GMBH
    Inventor: Christian Finger-Albert
  • Fluid pump assembly
    Patent number: 11346353
    Abstract: A fluid transfer pump assembly that includes a motor enclosure assembly that forms a motor cavity sized to receive a motor. The motor enclosure includes a flame path that extends from an interior joint to an exterior joint. The interior joint faces the motor cavity and the exterior joint faces exterior of the motor enclosure assembly. A heat sink is located in the motor cavity of the motor enclosure assembly. A portion of the heat sink abuts the interior joint.
    Type: Grant
    Filed: March 16, 2020
    Date of Patent: May 31, 2022
    Assignee: Tuthill Corporation
    Inventors: Matthew Wenger, Nicholas G. Till, Wayne A. Hughes, Jr., Jacob J. Berry, Lester B. Ashe
  • Ocean current and tidal power electric generator
    Patent number: 11342829
    Abstract: Embodiments of an apparatus for generating electric power from flowing seawater are disclosed. Embodiments form fluid channels having magnetic fields through which seawater will flow. Electrodes are arranged with respect to the fluid channels and connected together such that electric power is generated as seawater flows through the channels.
    Type: Grant
    Filed: January 16, 2018
    Date of Patent: May 24, 2022
    Inventor: Colin Kerr
  • Axial field rotary energy device with PCB stator panel having thermally conductive layer
    Patent number: 11336139
    Abstract: An axial field rotary energy device has a PCB stator panel assembly between rotors with an axis of rotation. Each rotor has a magnet. The PCB stator panel assembly includes PCB panels. Each PCB panel can have layers, and each layer can have conductive coils. The PCB stator panel assembly can have a thermally conductive layer that extends from an inner diameter portion to an outer diameter portion thereof.
    Type: Grant
    Filed: July 21, 2020
    Date of Patent: May 17, 2022
    Assignee: Infinitum Electric, Inc.
    Inventors: Rich Lee, Randal A. Lee, Paulo Guedes-Pinto
  • Driving motor with asymmetric magnetic pole type of permanent magnet and claw pole electric excitation for electric automobile
    Patent number: 11323014
    Abstract: The disclosure discloses a driving motor with an asymmetrical magnetic pole type of permanent magnet and claw pole electric excitation for an electric automobile which includes a front end cover, a rear end cover, a housing, an asymmetric magnetic pole type of permanent magnet rotor, a claw pole electric excitation rotor, and a stator. Wherein the asymmetric magnetic pole type of permanent magnet rotor is provided with first magnetic pole groups and second magnetic pole groups, the first magnetic pole groups and the second magnetic pole groups are of an asymmetric structure, polarities of outer sides of the first magnetic pole groups and the second magnetic pole groups are distributed in a manner of N poles and S poles arranged at intervals. A utilization of inner space of the motor rotor can be improved, the performance of the motor is improved, and the costs of the motor are reduced.
    Type: Grant
    Filed: March 31, 2020
    Date of Patent: May 3, 2022
    Assignee: SHANDONG UNIVERSITY OF TECHNOLOGY
    Inventors: Xueyi Zhang, Wenjing Hu, Yulong Lei, Shanjian Wang, Hongbin Yin, Huihui Geng
  • Rotor, motor, and method for manufacturing rotor
    Patent number: 11322998
    Abstract: A rotor according to an embodiment includes a cylindrical magnet, a holder, and a balance adjusting portion. The cylindrical magnet has a bore portion into which a rotary shaft is inserted, the inner diameter of the bore portion being larger than the outer diameter of the rotary shaft. The holder is made of resin, and has a tubular portion formed in the bore portion of the magnet and a protruding portion protruding from the magnet in the rotation axis direction, the holder being press-fitted onto the rotary shaft. The balance adjusting portion is press-fitted onto the rotary shaft with the protruding portion interposed therebetween.
    Type: Grant
    Filed: August 27, 2018
    Date of Patent: May 3, 2022
    Assignee: MINEBEA MITSUMI Inc.
    Inventor: Jun Ohmura
  • Connection between a winding and a circuit board
    Patent number: 11316413
    Abstract: Various embodiments may include a connection between a winding for an electric machine and a circuit board for an inverter including a connection between the winding and a circuit board for an inverter. A coil end piece of the stator winding extends in a first direction and is welded or connected in a form-fitting manner directly to the circuit board on which a power output stage of the inverter is located.
    Type: Grant
    Filed: January 26, 2017
    Date of Patent: April 26, 2022
    Assignee: VITESCO TECHNOLOGIES GMBH
    Inventors: Magnus Jaster, Robert Krause
  • Combined propellant-less propulsion and reaction wheel device
    Patent number: 11309753
    Abstract: A propulsion method includes: providing a pair of synchronized rotors rotatably mounted on a frame with a bearing having a bearing outer race, bearing balls, and bearing inner race; providing a plurality of permanent magnets mounted on the pair of synchronized rotors; rotating the pair of synchronized rotors such that one of the pair of synchronized rotors rotates in a clockwise direction and the other of the pair of synchronized rotors rotates in a counterclockwise direction; loading an outer portion of the outer bearing race, bearing ball, and inner bearing race of each of the bearings, a load on the outer portion of the bearings corresponding to an attractive force between the permanent magnets of the pair of synchronized rotors. A thrust is imparted on the frame in a direction corresponding to a direction of loading of the inner bearing race.
    Type: Grant
    Filed: April 20, 2020
    Date of Patent: April 19, 2022
    Inventor: Anoup Kaul
  • Motor unit equipped with decelerator
    Patent number: 11303189
    Abstract: A worm wheel is installed inside a wheel accommodation chamber of a body casing; a motor is fastened by screws from the right side perpendicular to the axis line of the worm wheel, thus forming a motor fastening part; and a worm fixed to an output shaft of the motor is engaged with the worm wheel. A board accommodation chamber is formed so as to be adjacent to the right of the wheel accommodation chamber, and a control board is inserted inside the board accommodation chamber from below. The control board is disposed so as to be inclined in a direction in which the upper end of the control board is displaced toward the wheel accommodation chamber from an erect attitude perpendicular to the axis line of the output shaft of the motor, and thus the upper end is separated from the motor fastening part in the direction of the axis line of the output shaft.
    Type: Grant
    Filed: July 31, 2018
    Date of Patent: April 12, 2022
    Assignee: MABUCHI MOTOR CO., LTD.
    Inventors: Junya Kurata, Satoshi Kikuchi, Yoshihiro Hanazawa
  • Internal pressure reduction device and explosion-proof electric machine
    Patent number: 11303182
    Abstract: An explosion-proof electrical machine and, more specifically, to an electrical machine comprising an internal pressure reduction device. The internal pressure reduction device comprises a base for installation in a region of the casing below the connection box, a base being configured to receive a plurality of volume filling pieces; wherein the base comprises a bottom part and a part of wall which is extended by at least a part of the periphery of the bottom part. The base may further comprise at least one engaging means for each piece of the plurality of volume filling pieces.
    Type: Grant
    Filed: November 3, 2017
    Date of Patent: April 12, 2022
    Assignee: WEG EQUIPAMENTOS ELÉTRICOS S.A.
    Inventor: Eliseu Tiburski Junior
  • Device for converting bends to electricity
    Patent number: 11303193
    Abstract: A device for converting bends of a body to electricity, that is designed to be fixed to the body, that includes an electromagnetic device with a coil and a core, a magnet and a converter that is designed to convert bending of the body to a movement of the magnet relative to the electromagnetic device.
    Type: Grant
    Filed: February 4, 2020
    Date of Patent: April 12, 2022
    Inventors: Dan Haronian, Michael Haronian
  • Motor, compressor, and air conditioner
    Patent number: 11296560
    Abstract: A motor is used in a compressor. The motor includes a stator including a stator core having a yoke part that extends in a circumferential direction about an axis and a plurality of teeth that extend from the yoke part toward the axis and are arranged in the circumferential direction, and a winding wound around the plurality of teeth of the stator core in wave winding, and a rotor whose number of poles is P and which is disposed on an inner side of the stator in a radial direction about the axis. When a number of the plurality of teeth is represented by S, S/P?6 is satisfied. The yoke part has a refrigerant passage through which refrigerant passes in a direction of the axis.
    Type: Grant
    Filed: May 25, 2017
    Date of Patent: April 5, 2022
    Assignee: Mitsubishi Electric Corporation
    Inventor: Atsushi Ishikawa
  • Stator winding for rotating electric machine, and manufacturing method therefor
    Patent number: 11296573
    Abstract: A stator winding for a rotating electric machine includes: a plurality of lead wires each including a conductor and an insulating film provided on side surfaces of the conductor; and a joining portion configured to join terminal portions of the plurality of lead wires to each other. The plurality of lead wires each includes: a conductor exposure portion provided at a portion of the terminal portion at which the terminal portions of the plurality of lead wires face each other, has the conductor exposed thereat, and has the joining portion connected thereto; and an insulating film remainder portion, provided at a portion of the terminal portion of the lead wire excluding the conductor exposure portion, and has the conductor covered with the insulating film, and a portion of the insulating film in the insulating film remainder portion is provided in a periphery of the joining portion.
    Type: Grant
    Filed: March 24, 2020
    Date of Patent: April 5, 2022
    Assignee: Mitsubishi Electric Corporation
    Inventors: Kota Katsuragi, Shinji Kawaguchi, Kohei Yasuda
  • Online UPS system with combined air and water cooling
    Patent number: 11289992
    Abstract: In an UPS system, following components are arranged in a machine cabinet: an AC-to-DC converter connected to a DC voltage link on its output side, a DC-to-AC converter connected to the DC voltage link on its input side; a motor/generator electrically connected to the DC voltage link and having a flywheel coupled to its rotor; a bypass to the AC-to-DC converter and the DC-to-AC converter connected in series, a bypass switch being arranged in the bypass; a controller; and a blower which draws air out of the surroundings through air filters, blows the air in the machine cabinet through a heat exchanger, and ejects the air again. The heat exchanger is arranged in a coolant circuit together with a coolant pump, cooling bodies for the power output stages, and coolant channels which include stator channels running through a stator of the motor/generator.
    Type: Grant
    Filed: August 26, 2019
    Date of Patent: March 29, 2022
    Assignee: PILLER GROUP GMBH
    Inventors: Joachim Huntgeburth, Thomas Benke, Norbert Ueffing