Patents Examined by Naishadh N Desai
  • Patent number: 11563359
    Abstract: A lubricant supported electric motor includes a stator presenting an outer raceway and a rotor extending along an axis and rotatably disposed within the stator. The rotor presents an inner raceway disposed in spaced relationship with the outer raceway to define a gap therebetween, and a lubricant is disposed in the gap for supporting the rotor within the stator. At least one of the outer raceway or the inner raceway is movable radially towards or away from the other to adjust the gap and optimize operation of the lubricant supported electric motor.
    Type: Grant
    Filed: September 24, 2020
    Date of Patent: January 24, 2023
    Assignee: NEAPCO INTELLECTUAL PROPERTY HOLDINGS, LLC
    Inventors: Donald Remboski, Jacqueline Dedo, Mark Versteyhe
  • Patent number: 11563346
    Abstract: A rotor for a machine has a plurality of rotor segments, each rotor segment forming at least one rotor pole and having a plurality of permanent magnets interior to the rotor and at least one saturatable bridge section for each permanent magnet in the rotor segment, each saturatable bridge section comprising a protrusion between air regions separating a north pole and a south pole of the permanent magnet to cause a portion of magnetic flux from the permanent magnet to traverse the saturatable bridge and cause a majority of the permanent magnet flux through an air gap of a rotor-stator interface between the rotor and a stator of the machine and through a stator pole.
    Type: Grant
    Filed: September 28, 2021
    Date of Patent: January 24, 2023
    Assignee: QM Power, Inc.
    Inventor: Charles J Flynn
  • Patent number: 11552537
    Abstract: Embodiments disclosed herein describe methods for an improved electrical connector system.
    Type: Grant
    Filed: August 24, 2021
    Date of Patent: January 10, 2023
    Assignee: RLT Holdings, LLC
    Inventors: Zhichao Yu, Kyle Meier, Edward Curt
  • Patent number: 11552514
    Abstract: A motor includes a stator having a winding, and a rotor. The rotor rotates by receiving a rotational magnetic field generated by drive current supplied to the winding. The winding includes a first winding and a second winding, the first and second windings both being excited at the same timing by the drive current. The first winding and the second winding are connected in series. The rotor includes a first pole section and a second pole section. The second pole section faces the second winding at the rotation position of the rotor at which the first pole section faces the first winding. The magnetic force exerted on the stator by the second pole section is weaker than that exerted by the first pole section.
    Type: Grant
    Filed: August 2, 2021
    Date of Patent: January 10, 2023
    Assignee: DENSO CORPORATION
    Inventors: Yoji Yamada, Koji Mikami, Akihisa Hattori, Seiya Yokoyama
  • Patent number: 11552516
    Abstract: A rotor of an axial flux motor reduces a cogging torque and torque ripple, and is disposed facing a stator. The rotor includes: a rotation shaft; a rotor core having the rotation shaft connected thereto by passing through a center the rotor core; a plurality of seating grooves concavely formed on one surface of the rotor core facing the stator while being spaced apart from each other at equal intervals along a circumferential direction of the rotor core; and a plurality of protrusions formed on inner wall surface of each of the plurality of seating grooves such that the plurality protrusions face a center of each of the plurality of seating grooves; and a plurality of magnets pressed into and coupled to an associated one of the plurality of seating grooves while plastically deforming the plurality of protrusions of the rotor core.
    Type: Grant
    Filed: November 18, 2020
    Date of Patent: January 10, 2023
    Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventor: Shin Gyu Kim
  • Patent number: 11549557
    Abstract: A shaft-hub connection including a hub element and a shaft element is provided. The hub element includes a hub. The shaft element includes at least one first elongated region arranged in at least one second elongated region of the hub and is at least rotationally fixed to the hub element by way of a longitudinal press-fit including the elongated regions. The longitudinal press-fit has at least one first excess region with a first excess, and at least one second excess region, following the first excess region in the circumferential direction of the shaft element, with a second excess that is smaller than the first excess.
    Type: Grant
    Filed: September 4, 2019
    Date of Patent: January 10, 2023
    Assignee: Bayerische Motoren Werke Aktiengesellschaft
    Inventors: Endre Barti, Jerome Ragot, Anastasios Vichos
  • Patent number: 11552539
    Abstract: Disclosed within are a structure and method for forming a component for a rotor to be used in an electric machine. The formed rotor components can include a rotor assembly or rotor shaft. The rotor assembly can include a plurality of poles spaced about a rotor core. The plurality of poles can include a pole shoe or pole body. Quasi-laminations that can result in a unitary structure that includes support structures can be used to form all or a portion of the pole shoe or pole body.
    Type: Grant
    Filed: July 16, 2021
    Date of Patent: January 10, 2023
    Assignee: GE Aviation Systems LLC
    Inventors: Hao Huang, James Patrick Mahle, Sudeep Pradhan Sadananda Rao, Xiaochuan Jia
  • Patent number: 11552520
    Abstract: An EC motor with a stator and a rotor mounted to a shaft. The motor has a cooling system, an over molded stator housing, and an optimized rotor. The stator has teeth with wound electromagnetic coils. The teeth and coils are distributed circumferentially with gaps between adjacent coils. The stator is over molded with plastic that forms axially oriented cooling passages between adjacent coil sections. An impeller fan then draws air into the motor through air inlets connected to air passages. The impeller fan directs the air through the axially oriented cooling passages in the stator and out air outlets. An optimized internal rotor has permanent magnets and silicon steel laminates spaced circumferentially and extending outwardly from a central hub. Rectangular shaped magnets are interposed in the gaps between the laminates. Wedge-shaped magnets are aligned radially with the laminates and between the laminates and the hub.
    Type: Grant
    Filed: January 11, 2021
    Date of Patent: January 10, 2023
    Assignee: East West Manufacturing, LLC
    Inventor: Stephen Andrew Semidey
  • Patent number: 11552521
    Abstract: A stator for an electric machine includes a generally cylindrical stator core having a plurality of circumferentially-spaced and axially-extending core teeth that define a plurality of circumferentially-spaced and axially-extending core slots in a surface thereof, a main winding having a plurality of coils, each of the coils including a plurality of turns occupying the plurality of slots in the stator core, and a tertiary excitation winding having a plurality of coils, each of the coils including a single turn occupying at least a subset of the plurality of slots in the stator core. The coils of the main winding are unevenly arranged in the plurality of slots.
    Type: Grant
    Filed: March 31, 2020
    Date of Patent: January 10, 2023
    Assignee: TRANSPORTATION IP HOLDINGS, LLC
    Inventor: Rihong Mo
  • Patent number: 11545869
    Abstract: A motor includes a support frame, a stator, a bearing member, and a rotor. The support frame includes first and second tubular parts, and a vent hole. The second tubular part is disposed radially outside the first tubular part. The vent hole, extending axially, is provided between the first and second tubular parts. The stator is disposed radially outside the second tubular part, and supported by the second tubular part. The bearing member is disposed inside and supported by the first tubular part. The rotor includes a rotor frame, a shaft, and a permanent magnet. The rotor frame is disposed on a first side with respect to the support frame in the axial direction. The shaft is fixed to the rotor frame. The shaft is attached rotatably to the support frame through the bearing member. The permanent magnet is disposed radially outside the stator, and supported by the rotor frame.
    Type: Grant
    Filed: March 15, 2021
    Date of Patent: January 3, 2023
    Assignee: EXEDY CORPORATION
    Inventors: Yoshifumi Shimogaki, Takashi Imoto
  • Patent number: 11539250
    Abstract: The invention predominantly relates to a rotating electrical machine for a motor vehicle, comprising: a rotor having an even number of pole pairs Np; and a stator (10) comprising a body provided with slots and a three-phase winding (14) inserted into the slots in the stator body. The three-phase winding (14) comprises: at least a first group (G1) of portions of phases (U, V, W) and a second group (G2) of portions of phases (U, V, W) which are associated with a first set of at least three bridge arms (21.1); and at least a third group (G3) of portions of phases (U, V, W) and a fourth group (G4) of portions of phases (U, V, W) which are associated with a second set of at least three bridge arms (21.1).
    Type: Grant
    Filed: February 27, 2019
    Date of Patent: December 27, 2022
    Assignee: Valeo Equipements Electriques Moteur
    Inventors: Jérome Legranger, Philippe-Siad Farah, Radu Fratila
  • Patent number: 11532965
    Abstract: The present disclosure discloses an electric-machine housing structure, wherein the electric-machine housing structure includes an outer housing, an inner housing and a plurality of intermediate pieces provided between the outer housing and the inner housing; and the intermediate pieces are overall hollow arcuate structures or annular structures, upper surfaces and lower surfaces of the intermediate pieces are provided with a plurality of protrusions and/or grooves, the protrusions and/or grooves of the upper surfaces match with and are fixed to grooves and/or protrusions on an inner circumferential face of the outer housing, and the protrusions and/or grooves of the lower surfaces match with and are fixed to grooves and/or protrusions on an outer circumferential face of the inner housing.
    Type: Grant
    Filed: May 18, 2021
    Date of Patent: December 20, 2022
    Assignee: Jing-Jin Electric Technologies Co., Ltd.
    Inventors: Ping Yu, Zhe Feng, Kui Yang, Haibin Wang, Kunxing Sun
  • Patent number: 11532964
    Abstract: A generator including a stator winding, a rotor positioned radially inside the stator winding, including multiple coil assemblies each using a flat wire, a primary termination plate residing radially inside the rotor configured to connect a wire of a coil assembly to an adjacent wound coil and a secondary termination plate residing radially inside the rotor configured to connect a wound coil to an adjacent wound coil and connect the wound coil to a terminus connection.
    Type: Grant
    Filed: January 22, 2020
    Date of Patent: December 20, 2022
    Assignee: Hamilton Sundstrand Corporation
    Inventors: Eric Alan Larson, Brady A. Manogue, David S. Behling, Andrew P. Grosskopf
  • Patent number: 11522417
    Abstract: Various embodiments associated with a segmented magnetic core are described. The segmented magnetic core can be made up of multiple singular structures so as to allow an individual singular structure to be removed with ease and without disturbing another magnetic core. This modular core design allows for a significant reduction in motor housing weight due to compatibility of the design with lightweight materials and the potential absence of extensive housing when so designed. This modular core design can be incorporated into a motor or a generator and this modular core design can be accomplished, in one example, by way of stacking and/or interlocking employing low cost assembly. In one example, a motor or a generator uses sensors to detect an operational failure in a magnetic core, notifying a user early of the failure.
    Type: Grant
    Filed: May 24, 2021
    Date of Patent: December 6, 2022
    Assignee: The Government of the United States, as represented by the Secretary of the Army
    Inventor: Edward Dawidowicz
  • Patent number: 11496035
    Abstract: Homopolar linear synchronous machines (200) are provided herein that include a mover device (111). The mover device (111) includes a cold plate with ferromagnetic cores extending through slots in the cold plate. Layers of armature coils are located around the ferromagnetic cores on opposite sides of the cold plate. The mover device (111) further includes at least one field coil.
    Type: Grant
    Filed: September 18, 2019
    Date of Patent: November 8, 2022
    Assignee: Motorola Solutions, Inc.
    Inventors: Alexander Jedinger, Arbi Gharakhani Siraki, Erik Johnson, Shahriyar Beizaee, Rachel Ozer, Ju Hyung Kim
  • Patent number: 11482905
    Abstract: An axial or radial flux electric motor or generator consisting of a housing, a stator assembly(s), and rotor(s) where the stator assembly and rotor are aligned with each other while allowing an air gap between the stator and rotor, with electromagnetic forces being applied between the two when the rotor rotates within the stator. Stator coils are connected by one or more conductive bus bars integrated into the motor housing where the stator coils are affixed to the bus bars to create individual stator phases. The stator assembly is enclosed within a cooling jacket where cooling channels flow a coolant media directly over the stator coils during operation. The flow of coolant is controlled by a set of permeable dividers that direct coolant over the surface area of the coil evenly.
    Type: Grant
    Filed: August 8, 2018
    Date of Patent: October 25, 2022
    Assignee: Highlands Power, Inc.
    Inventors: Conner Whaley, Sean Fountain
  • Patent number: 11482894
    Abstract: An axial-flux and radial-flux motor including a rotor mounted rotatably about a machine axis, with the rotor rotatively attached to a shaft. A stator assembly having a core with a non-ferromagnetic material and including a first axial-flux stator yoke with an inner wall rigidly attached on an outer surface of a first edge wall of the core. A second axial-flux stator yoke having an inner wall rigidly attached on an outer surface of a second edge wall of the core. The first and the second axial-flux stator yokes each include an outer wall with slots. A radial-flux stator yoke with slots includes an inner wall rigidly attached on a continuous outer wall of the core. The radial-flux stator yoke and the first and the second axial-flux stator yokes include laminated sheets. Windings positioned in the slots of the first and the second axial-flux stator yokes and the radial-flux stator yoke.
    Type: Grant
    Filed: October 15, 2020
    Date of Patent: October 25, 2022
    Assignee: Mitsubishi Electric Research Laboratories, Inc.
    Inventors: Lei Zhou, Bingnan Wang, Hongyu Wang
  • Patent number: 11482896
    Abstract: A compressor provided with a motor includes several core block assemblies aligned in the circumferential direction of a bobbin and the several core block assemblies have a V-shaped bending shape.
    Type: Grant
    Filed: January 29, 2020
    Date of Patent: October 25, 2022
    Assignee: LG Electronics Inc.
    Inventor: Donggi Shin
  • Patent number: 11476732
    Abstract: An electric actuator includes: an electric motor 2, a relay circuit 3 that switches ON/OFF of power supply to the electric motor 2, a motion conversion mechanism 4 that converts a rotary motion of the electric motor 2 into a motion in a direction different therefrom and outputs the motion, and a housing 1. The housing 1 is configured by joining two housing split bodies 1a and 1b to each other, and in an internal space formed by joining the two housing split bodies 1a and 1b, the electric motor 2, the relay circuit 3, and the motion conversion mechanism 4 are housed.
    Type: Grant
    Filed: November 27, 2018
    Date of Patent: October 18, 2022
    Assignee: NTN CORPORATION
    Inventors: Takushi Matsuto, Akio Kato, Atsushi Ikeda
  • Patent number: 11476742
    Abstract: A multi-degree-of-freedom spherical motor includes a primary frame, a secondary frame, a tertiary frame, a terminal rotor, a first rotating shaft, a second rotating shaft, a third rotating shaft, permanent magnets and electromagnetic coils. The electromagnetic coils are arranged on an inner surface of the primary frame. Two sides at a top portion of the primary frame are symmetrically connected to the secondary frame through the first rotating shaft. The tertiary frame is arranged inside the secondary frame in a non-mechanical contact manner. The terminal rotor and the tertiary frame are connected through the third rotating shaft. The permanent magnets are arranged on one side of the terminal rotor close to the primary frame. The secondary frame and the tertiary frame are connected through the second rotating shaft. The first rotating shaft, the second rotating shaft and the third rotating shaft are perpendicular to each other.
    Type: Grant
    Filed: July 19, 2021
    Date of Patent: October 18, 2022
    Assignee: HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Kun Bai, Mengke Li, Zixin Que, Yaowu Ding, Xiyin Li