Patents Examined by Naishadh Desai
  • Patent number: 10256685
    Abstract: A motor having improved heat resistance is provided. The motor includes a rotor comprising a rotor core, two or more slots arranged in a circumferential direction of the rotor in the rotor core, two magnets in a plate shape having a thickness in a radial direction of the rotor, and divided and arranged in the circumferential direction in each of the two or more slots, and a spacer for dividing the two magnets; and a stator disposed outside of the rotor in the radial direction with a clearance from the rotor and comprising a stator core having two or more slots wound with one or more winding wires; and the two magnets are separated from each other by the spacer, by a distance which is 10% to 50% of a circumferential length of the slot having the two magnets.
    Type: Grant
    Filed: November 6, 2012
    Date of Patent: April 9, 2019
    Inventor: Dai Higuchi
  • Patent number: 10250087
    Abstract: Disclosed is an asynchronous rotating electric machine in which none of the electrical windings is rotating, said machine having a homopolar compound structure. The machine comprises: a rotor including magnetic flux return parts; and a stator formed by a pair of armatures and a magnetic wedge connecting the armatures and providing the magnetic flux in the direction of the axis of rotation, an annular induction coil being supplied with alternating current and housed between the air gap and the wedge, and one or two armature coils being received by one or both of the armatures generating an alternating magnetic flux.
    Type: Grant
    Filed: November 29, 2017
    Date of Patent: April 2, 2019
    Assignee: Francecol Technology
    Inventors: François Bernot, Victor Bernaola, Jonh Edwin Morales Morales
  • Patent number: 10250106
    Abstract: A stator which prevents deformation of component elements of the stator and which effectively removes heat generated by coils at the time of operation. The stator of a motor comprises a stator core having a cylindrical back yoke and teeth projecting out from the back yoke to the inside in the diametrical direction, coils wound around the teeth, an outer cylinder surrounding the back yoke, and heat conducting parts abutting against both an inner circumferential surface of the outer cylinder and coil ends of the coils.
    Type: Grant
    Filed: March 1, 2016
    Date of Patent: April 2, 2019
    Inventor: Tatsuya Senoo
  • Patent number: 10230283
    Abstract: A adapter for coupling a cable to a motor in a hygienic environment is provided. The hygienic adapter is non-rotatably coupled to and hygienically seals an opening of the motor housing, the hygienic adapter including a port adapted to receive the power supply cable connector such that the connector and cable are oriented parallel to the longitudinal surface of the housing and the connector is accessible to the electrical leads.
    Type: Grant
    Filed: September 1, 2016
    Date of Patent: March 12, 2019
    Inventors: Kevin Garrison, Mike Conner, Eddie Anderson, Gene Matthews, Hilary Whiting, Devin Deeds
  • Patent number: 10224771
    Abstract: Circulating currents are suppressed and thermal losses are reduced in a three-phase permanent-magnet-excited synchronous machine in a delta circuit. The machine has a stator in which, during operation, a voltage is induced by way of a magnetic field generated by magnetic poles of a rotor. A field strength of the magnetic field has, along a circumferential coordinate of the rotor, a profile formed from superimposition of a sinusoidal basic function and of sinusoidal harmonics of the basic function. Groove recesses and/or cavities are located in and/or under a circumferential face of the rotor that face the stator and follow an axial extent of the pole pitch of the rotor in their longitudinal extent and extend transversely with respect to the longitudinal extent along the circumferential coordinate in the region of the maximum values of at least the third harmonic and outside the maximum values of the basic function.
    Type: Grant
    Filed: September 8, 2015
    Date of Patent: March 5, 2019
    Assignee: Volkswagen Aktiengesellschaft
    Inventors: Hauke Einfeld, Rainer Helmer
  • Patent number: 10224774
    Abstract: A method for mounting laminated sheets onto a shaft of a rotor provided for an electrical machine may involve sliding the laminated sheets onto the shaft and bracing the laminated sheets between two rotation-resistant thrust washers connected with the shaft. The laminated sheets may be slid onto the shaft to lie against a stop in the form of a first thrust washer arranged upon a first subsection of the shaft. A second thrust washer may be pressed in by axially bracing the laminated sheets onto a second axial subsection of the shaft in a frictional interlocking manner. The second thrust washer may be positioned after a surface of the second subsection has been enlarged by the introduction of an exterior surface profile.
    Type: Grant
    Filed: April 22, 2015
    Date of Patent: March 5, 2019
    Inventors: Daniel Paul, Juergen Meusel, Kay Hameyer, Thomas Herold, Teofil Cristian Andrej
  • Patent number: 10218294
    Abstract: A magnetic bearing assembly (20) comprises a first magnet assembly (34) for generating a first quadrupole magnetic field in a first plane and a second magnet assembly (36) for generating a second quadrupole magnetic field in a second plane. The second plane is arranged parallel to the first plane. The quadrupole magnetic fields exhibit in each case in the planes magnetic field axes arranged at an angle to one another between four poles. A longitudinal axis (A) is defined at right angles hereto by the centers of the quadrupole magnetic fields. At least one diamagnetic element (44) is arranged on the longitudinal axis (A). The first and second magnet assemblies (34, 36) are arranged relative to one another in such a way that the first and the second quadrupole magnetic fields are rotated towards one another about the longitudinal axis (A) by an angular amount which is not a whole-number multiple of 90°.
    Type: Grant
    Filed: September 30, 2016
    Date of Patent: February 26, 2019
    Inventor: Cornelia Will
  • Patent number: 10211695
    Abstract: A stator module for an electric motor has a stator laminated core with a number of inwardly directed stator teeth and a rotating-field winding with a plurality of phases arranged on the stator teeth. The rotating-field winding has at least one coil per phase, which coil is electrically connected to a first phase end and a second phase end. A laying ring is placed onto the stator laminated core at the end face and surrounds the stator teeth as coil body in order to guide the rotating-field winding. An annular cover is placed onto the laying ring at the end face, on which cover each of the phase ends is contacted with one of the phase ends of another phase, in such a way that the entire rotating-field winding does not protrude radially externally beyond an outer periphery of the stator laminated core.
    Type: Grant
    Filed: February 29, 2016
    Date of Patent: February 19, 2019
    Assignee: Brose Fahrzeugteile GmbH & Co. Kommanditgesellschaft, Wuerzburg
    Inventor: Stephan Roos
  • Patent number: 10205359
    Abstract: A rotor includes an inner wall and an outer wall, where the inner wall forms a space and is radially centered along a central longitudinal axis of the rotor. The rotor further includes a first magnetic pair of legs corresponding to a first pole. The first leg and a second leg of the first magnetic pair of legs are disposed within the rotor, and a first angular distance between the first leg and the second leg decreases from the outer wall to the inner wall. A second magnetic pair of legs corresponding to a second pole that differs from the first pole, a third leg and a fourth leg of the second magnetic pair of legs being disposed within the rotor to extend radially inward from the outer wall toward the inner wall, a second angular distance between the third leg and the fourth leg decreases from the outer wall to the inner wall.
    Type: Grant
    Filed: November 18, 2014
    Date of Patent: February 12, 2019
    Inventors: Mazharul H. Chowdhury, Mohammad S. Islam
  • Patent number: 10199897
    Abstract: A stator has a field winding, the winding comprising a plurality of axial conductors connected at their ends to form at least one circuit with a number of turns. Each axial conductor is disposed within a tubular axial insulation member, the tubular axial insulation members being disposed within a stack of laminations. The axial conductors and the tubular insulation members are radially distributed at equal angles. The position of the axial conductors and the tubular insulation members is predetermined.
    Type: Grant
    Filed: November 17, 2014
    Date of Patent: February 5, 2019
    Assignee: Coreteq Systems Ltd.
    Inventors: Philip Head, Hassan Mansir
  • Patent number: 10199893
    Abstract: A rotor of a rotary electric machine, which is supported by a rotating shaft, includes a rotor core, and a permanent magnet embedded in the rotor core. At least one in-core cooling medium passage that leads a cooling medium supplied from an in-shaft cooling medium passage formed inside the rotating shaft to an outer peripheral end of the rotor core, and discharges the supplied cooling medium into a gap between the rotor core and a stator, is formed in the rotor core. The at least one in-core cooling medium passage includes a center cooling medium passage, a pair of inner peripheral side cooling medium passages, and an outer peripheral side cooling medium passage that is communicated with the gap. A radially outside end portion of the center cooling medium passage has a slope that extends toward a radially outer side closer to a center in the axial direction.
    Type: Grant
    Filed: June 13, 2016
    Date of Patent: February 5, 2019
    Inventor: Toshinori Okochi
  • Patent number: 10199789
    Abstract: A carbonaceous material is fabricated by a mixture of carbon powder and a binder. 10% by weight or more and 60% by weight or less of metal powder to the fabricated carbonaceous material is mixed. The mixed carbonaceous material and metal powder are pressurized and formed. A brush base material is fabricated by burning of the pressurized and formed carbonaceous material and metal powder. The fabricated brush base material is impregnated with oil. An impregnation rate of the oil to the mixed carbonaceous material and metal powder may be 0.5% by weight or more, for example.
    Type: Grant
    Filed: October 1, 2014
    Date of Patent: February 5, 2019
    Assignee: TOTAN KAKO CO. LTD.
    Inventor: Fumihiro Hozumi
  • Patent number: 10193430
    Abstract: An electromagnetic device includes discrete wires for its poles or teeth. In another aspect, an electromagnetic device includes a stator unit and an adjacent movable unit, at least one of which includes magnetic flux-carrying poles, with a majority of each pole including multiple discrete wires. In another aspect, the movable unit is an electric motor rotor, a linear electric motor armature, a solenoid armature, or an electric generator rotor.
    Type: Grant
    Filed: March 12, 2014
    Date of Patent: January 29, 2019
    Assignee: Board of Trustees of Michigan State University
    Inventor: Norbert Müller
  • Patent number: 10193421
    Abstract: A component of an electrical machine is disclosed. The component includes a core including a plurality of slots, a magnetic field-generating component disposed in at least one slot of the plurality of slots, and a heat dissipating element disposed in a slot of the plurality of slots, in contact with the magnetic field-generating component. The heat dissipating element includes a thermally conductive material having an in-plane thermal conductivity higher than a through-plane thermal conductivity.
    Type: Grant
    Filed: November 13, 2015
    Date of Patent: January 29, 2019
    Inventors: Karthik Kumar Bodla, Manoj Ramprasad Shah, Steven Joseph Galioto
  • Patent number: 10186941
    Abstract: A magnetic drive can be configured to transfer torque from a reciprocating magnet to a flywheel having magnets in a contactless manner. The drive can include a reciprocating magnetic leg assembly which guides a magnet through a reciprocating path. The reciprocating path can be elliptical. The leg assembly can be mounted near the outer surface of a flywheel so as to, way of magnetic attraction forces, transfer torque from the leg assembly to a flywheel.
    Type: Grant
    Filed: January 12, 2018
    Date of Patent: January 22, 2019
    Inventor: Fu-Hung Ho
  • Patent number: 10186939
    Abstract: Alternator/starters and methods for providing electrical power to a vehicle and rotating an engine are disclosed. In one example, the alternator/starter provides a differential action whereby torque on an input side of the alternator may be maintained while speed of an output side of the alternator may be varied. The alternator/starter includes two armature windings and two field windings.
    Type: Grant
    Filed: March 1, 2016
    Date of Patent: January 22, 2019
    Assignee: Ford Global Technologies, LLC
    Inventor: Larry Dean Elie
  • Patent number: 10186929
    Abstract: A brushless motor having a casing for containing a stator body and for a rotor with a driving shaft, an exit cap with an outlet for the driving shaft and a closure cap. The closure cap includes an output for power cables and is disposed opposite the exit cap and supports an electronic board for controlling the brushless motor. The closure cap further includes a recess for containing the electronic control board, which is defined so as to be recessed in an axial direction with respect to the outer surface of the cap.
    Type: Grant
    Filed: June 17, 2015
    Date of Patent: January 22, 2019
    Assignee: AMER S.P.A.
    Inventors: Francesco Battistella, Mirko Dalla Costa
  • Patent number: 10181658
    Abstract: An electric machine having a rotor, stator and at least one winding. The winding defines a first lead having a conductive core and an electrically insulative exterior layer. A connector engaged with the first lead includes a plurality of projections that pierce the exterior layer of the first lead to engage the conductive core. The connector may be C-shaped having a spine and first and second arms with first and second bend lines respectively disposed between the spine and the two arms. Alternatively, the connector may be U-shaped having a spine and first and first and second arms wherein a bend line and a central opening are disposed between the two arms. The first lead extends through the central opening and is grippingly engaged by the connector between the first and second arms. The connector may also be used to securely engage an uninsulated terminal.
    Type: Grant
    Filed: March 31, 2016
    Date of Patent: January 15, 2019
    Assignee: BORGWARNER INC.
    Inventors: Kirk Neet, Christopher Bledsoe, James Paul Murphy
  • Patent number: 10181780
    Abstract: A stator device for a linear motor comprises an electrically energizable magnetic field generator for forming a magnetic field, the magnetic field generator comprising a stator tooth and a coil wound around the stator tooth and a holding module for holding the magnetic field generator, the holding module having a first and a second holding device, wherein the magnetic field generator is arranged between the two holding devices in that a first end of the stator tooth is fixed to the first holding device and a second end of the stator tooth is fixed to the second holding device.
    Type: Grant
    Filed: January 20, 2015
    Date of Patent: January 15, 2019
    Inventors: Jan Achterberg, Uwe Prüssmeier
  • Patent number: 10177633
    Abstract: The subject matter described herein includes a multiphase fractional slot concentrated winding machine. One such machine includes a machine module including a rotor and a stator. The stator includes a plurality of radially extending teeth. Each tooth is individually wound with a coil. The machine further includes a multiphase series converter circuit physically connected to an end of the machine module to energize the coils for multiphase operation.
    Type: Grant
    Filed: December 23, 2014
    Date of Patent: January 8, 2019
    Assignee: ABB Schweiz AG
    Inventors: Ghanshyam Shrestha, Zhiguo Pan, Mario Schweizer, Darren Dale Tremelling, Waqas Mahmood Arshad