Patents Examined by Nguyen N Hanh
  • Patent number: 8536759
    Abstract: AC generators are disclosed. Example generators may include a tubular air core, with high magnetic permeability and with a first and second end, the air core having a plurality of eddy current reducing slits passing from a radially outer surface of the air core to a radially inner surface of the air core; and a continuous coil made of conducting wire having a plurality of loops wrapped around the air core, the coil positioned between the first end and the second end of the air core.
    Type: Grant
    Filed: July 16, 2012
    Date of Patent: September 17, 2013
    Assignee: G+ Powertee Ltd.
    Inventor: Te-Pei Pan
  • Patent number: 8536753
    Abstract: An arrangement to set up and to ensure an air gap in an electrical machine, like a generator, is provided. The electrical machine includes a stator arrangement and a rotor arrangement. The rotor-arrangement rotates around a longitudinal axis. At least parts of the rotor arrangement interact with parts of the stator arrangement to generate electrical power. An air gap is defined by the distance between the parts of the rotor arrangement and the parts of the stator arrangement. The parts of the stator arrangement are opposite to the parts of the rotor arrangement along a certain length. The cross-section of the air gap changes along the certain length, so that the air gap is not uniform in view to the referred certain length.
    Type: Grant
    Filed: December 6, 2010
    Date of Patent: September 17, 2013
    Assignee: Siemens Aktiengesellschaft
    Inventor: Henrik Stiesdal
  • Patent number: 8536748
    Abstract: An internal permanent magnet machine has multiple rotor sections, each section having multiple rotor laminations. Permanent magnets are placed asymmetrically in lamination openings to attenuate oscillations in torque caused by harmonic components of magnetic flux. Asymmetry is achieved by placing adjacent permanent magnets or magnet sets on the rotor periphery with different rotor magnetic pole arc angles.
    Type: Grant
    Filed: September 15, 2010
    Date of Patent: September 17, 2013
    Assignee: Ford Global Technologies, LLC
    Inventors: Feng Liang, Wei Wu, Michael W. Degner, Franco Leonardi
  • Patent number: 8531078
    Abstract: A stator includes a stator support having multiple axially extending circumferentially arranged slots. Multiple phases each include multiple coils. Each of the coils has first and second opposing sides of conductor provided in the slots. A conductor in a second side of a first phase first coil is interspersed with a conductor in a second phase first coil. The conductors in a first side of the first phase first coil are arranged adjacent to one another and non-interspersed.
    Type: Grant
    Filed: May 26, 2011
    Date of Patent: September 10, 2013
    Assignee: Hamilton Sundstrand Corporation
    Inventor: John F. Bangura
  • Patent number: 8525381
    Abstract: Disclosed is a rotor for an electric motor in which permanent magnets can be arranged efficiently. A rotor of the electric motor according to the present invention comprises a rotor core constructed by punching out silicon steel lamination plates into a predetermined shape and laminating a predetermined number of the silicon steel lamination plates; a plurality of cavities provided on the rotor core; flat-shaped permanent magnets having a cross-sectional face made by a long side and a short side, inserted to the cavities; a chamfered portion formed on a portion of, among intersecting points of the long side and the short side of the permanent magnets, at least the intersecting point near an outer peripheral portion of the rotor core.
    Type: Grant
    Filed: January 30, 2009
    Date of Patent: September 3, 2013
    Assignee: Mitsubishi Electric Corporation
    Inventors: Koji Yabe, Hayato Yoshino, Kazuhiko Baba
  • Patent number: 8525373
    Abstract: An oscillatory system for a motorized drive unit for the generation of a rotary oscillatory movement is provided. The system includes a first oscillatory component and a second oscillatory component, the components capable of oscillating relative to one another around an axis of oscillation; and at least two elongate spring elements, each spring element having a first fastening point and a second fastening point spaced apart from one another. The spring elements are elastic in the direction of the rotary oscillatory movement. For each spring element the first fastening point is connected to the first oscillatory component and the second fastening point is connected to the second oscillatory component such that the spring elements intersect at the axis of oscillation, the axis of oscillation having an angle of intersection different from 0 degrees.
    Type: Grant
    Filed: October 2, 2012
    Date of Patent: September 3, 2013
    Assignee: Braun GmbH
    Inventors: Uwe Jungnickel, Benedikt Heil
  • Patent number: 8519591
    Abstract: A dynamoelectric machine includes: a rotor that has 2n field poles, where n is a positive integer; and a stator including: a stator core in which 2n×6 slots that are partitioned by adjacent teeth are formed at a predetermined pitch circumferentially; and first and second three-phase alternating-current windings that are each configured by delta-connecting three phase windings that are mounted to the stator core such that an electrical angle phase difference therebetween is 120 degrees, each of the phase windings being configured by connecting in series pairs of coil winding portions that are mounted to the stator core so as to have different electrical angular phases from each other, and an electrical angle phase difference between the first and second three-phase alternating-current windings is 30 degrees.
    Type: Grant
    Filed: November 10, 2009
    Date of Patent: August 27, 2013
    Assignee: Mitsubishi Electric Corporation
    Inventor: Shinji Nishimura
  • Patent number: 8519584
    Abstract: The present disclosure relates to a magnetic motor including a drive magnet, a motion magnet, and an acceleration field. The drive magnet includes magnetic shielding, typically on a portion thereof, altering the magnetic field of the drive magnet. In some embodiments, the motion magnet has a cross-section that is generally in the shape of a ‘V’ or ‘A’. The acceleration field is created by the interaction between the drive magnet and the motion magnet as the motion magnet is passed through the altered magnetic field of the drive magnet. The altered magnetic field of the drive magnet may often be near a first end of the drive magnet. In further embodiments, the motion magnet can be operably coupled to an output shaft and rotate around the central axis of the output shaft. The present disclosure, also relates to a device, including the magnetic motor, for generating energy from a turbine.
    Type: Grant
    Filed: December 27, 2011
    Date of Patent: August 27, 2013
    Assignee: Future Force, LLC
    Inventor: Mike Tkadlec
  • Patent number: 8519579
    Abstract: An electric motor has a rotor, stator, and covers. A stator coil is a pre-wound coil inserted into slots of a stator core from its inner side. A no-lead-wire side coil end portion of the stator coil protrudes radially inward. A no-lead-wire side coolant chamber is liquid-tightly defined by the cover covering the no-lead-wire side coil end portion and a seal plate(s) that is attached from or on a radially inner side of the stator core so as to cover an opening between the inner peripheral edge of the cover and the inner peripheral edge of the stator core.
    Type: Grant
    Filed: November 17, 2011
    Date of Patent: August 27, 2013
    Assignees: Toyota Jidosha Kabushiki Kaisha, Aisin Seiki Kabushiki Kaisha
    Inventors: Tomohiko Miyamoto, Naoto Koshino, Hiroshi Hoshina, Keiji Takizawa, Ko Hashimoto, Tetsuo Wakita
  • Patent number: 8513851
    Abstract: An insulator for a motor includes an annular section, a plurality of tooth sections and a plurality of connecting sections. The tooth sections extend radially inward of an inner circumferential surface of the annular section and are circumferentially arranged about the annular section. The connecting sections connect an inner circumferential surface of an annular section to ends of the tooth sections. Each connecting section includes a circumferential planar portion extending circumferentially from the end of a corresponding one of the tooth sections, and a radial planar portion extending radially from the end of the corresponding one of the tooth sections. Preferably, a stator includes a pair of the insulators, a motor includes the stator, and a compressor includes the motor.
    Type: Grant
    Filed: February 18, 2008
    Date of Patent: August 20, 2013
    Assignee: Daikin Industries, Ltd.
    Inventors: Satoshi Tsukamoto, Yasukazu Nabetani
  • Patent number: 8508092
    Abstract: A rotor for an electrical motor includes a spindle, a plurality of sintered permanent magnets arranged around the spindle, a compacted powdered soft magnetic material at least partially surrounding the plurality of sintered permanent magnets, and a plurality of discrete regions of compacted powdered non-magnetic material at least partially surrounding the plurality of sintered permanent magnets. The discrete regions of non-magnetic material are at least partially embedded in the soft magnetic material and the soft magnetic material and the non-magnetic material couple the plurality of sintered permanent magnets with the spindle.
    Type: Grant
    Filed: November 19, 2010
    Date of Patent: August 13, 2013
    Assignee: Toyota Motor Engineering & Manufacturing North America, Inc.
    Inventors: Scott Michael Ankeney, Kenji Nakamura
  • Patent number: 8508089
    Abstract: A permanent magnet is rotated about an axis extending between opposing north and south poles. The magnetic field of the rotated permanent magnet interacts with magnetic fields of permanent magnets carried by a shuttle for repelling and attracting the fixed permanent magnets, and providing a linear reciprocating movement of the shuttle responsive to the rotary motion of the rotated permanent magnet.
    Type: Grant
    Filed: April 7, 2011
    Date of Patent: August 13, 2013
    Assignee: Magnamotor, LLC
    Inventors: John W. Edwards, Robert M. Herrin, Johnny M. Tharpe, Jr.
  • Patent number: 8508085
    Abstract: Embodiments of the invention provide an electric machine module including an electric machine with a stator assembly. The stator assembly includes a plurality of stator laminations coupled together and a plurality of conductors positioned through axial slots of the plurality of stator laminations. The electric machine module also includes a coolant channel at least partially defined within the axial slots and a housing. The housing at least partially circumscribes the electric machine and at least partially defines a machine cavity which is in fluid communication with the coolant channel.
    Type: Grant
    Filed: October 4, 2010
    Date of Patent: August 13, 2013
    Assignee: Remy Technologies, LLC
    Inventor: Michael D. Bradfield
  • Patent number: 8502425
    Abstract: A totally enclosed motor which includes a rotor disposed inside a housing and a heat of the rotor is transferred to the housing, a stator disposed inside the housing and a heat of the stator is transferred to the housing, and an inner fin which is disposed in the rotor and agitates air inside the housing. The totally enclosed motor is cooled by a forced convection by an outer fan disposed outside the housing, or by a natural convention in the vicinity of an outer surface of the housing, and a shape of the rotor is different between one end side and the other end side of the rotor in an extending direction of a rotary shaft of the rotor.
    Type: Grant
    Filed: January 26, 2011
    Date of Patent: August 6, 2013
    Assignee: Hitachi, Ltd.
    Inventors: Hironori Matsumoto, Atsushi Otake, Hiroshi Morita, Junpei Kusukawa, Kinya Kobayashi, Junnosuke Nakatsugawa
  • Patent number: 8502424
    Abstract: An electric machine has a housing, and in the housing has at least one electrical assembly including a rotor, and having a cooling device which, in the lower region of the housing, has a sump pan that is situated or developed there for a coolant. The cooling device further has at least one coolant spray device for spraying the electrical assembly with coolant, the sump pan having a coolant discharge which, during non-operation of the electric machine, feeds the coolant into a coolant reservoir and is dimensioned so that, during operation of the electric machine at a specified coolant volume flow of the coolant spray device, a coolant level, which wets the rotor, sets in the sump pan. A corresponding method is also provided.
    Type: Grant
    Filed: April 22, 2009
    Date of Patent: August 6, 2013
    Assignee: Robert Bosch GmbH
    Inventor: Paul Esse
  • Patent number: 8502423
    Abstract: A linear motor includes a field including main-magnetic-pole permanent magnets magnetized in a direction of a generation magnetic field, and sub-magnetic-pole permanent magnets magnetized in a direction different from the direction of magnetic poles of the main-magnetic-pole permanent magnets, portions of the main-magnetic-pole permanent magnets located at a magnetic-field generation side being replaced with soft magnetic materials; and an armature including an armature core having teeth and armature coils wound around the armature cores. The linear motor satisfies ?<?, where ? is a pitch of the magnetic poles of the field, and ? is a pitch of the teeth.
    Type: Grant
    Filed: August 23, 2011
    Date of Patent: August 6, 2013
    Assignee: Kabushiki Kaisha Yaskawa Denki
    Inventors: Toru Shikayama, Masanobu Kakihara, Motomichi Ohto
  • Patent number: 8497610
    Abstract: A ceiling fan motor has a stator with several coil arms disposed at intervals for the winding of magnetizing coils. Between two adjacent coil arms are formed with a magnetic pole spacer. A supporting base is provided in a predetermined magnetic pole spacer for the disposition of a sensor to detect the position of the rotor.
    Type: Grant
    Filed: November 8, 2011
    Date of Patent: July 30, 2013
    Inventors: Chao-Chin Yao, Kuo Tsun Lin
  • Patent number: 8492945
    Abstract: A starter-generator is provided for a motor vehicle that has a drive train (1) with a drive machine (4), a torque-transmission device (8) and a transmission. The starter-generator (20) has an external rotor (22) and a stator (21). To simplify the manufacture of the motor vehicle, the starter-generator has a rotor flange (28) connected in a rotationally fixed fashion to an input component (16) of the torque-transmission device (8) and extends from the rotor (22).
    Type: Grant
    Filed: October 29, 2010
    Date of Patent: July 23, 2013
    Assignee: Dr. Ing. H.C. F. Porsche Aktiengesellschaft
    Inventors: Joachim Gruenberger, Leo Spiegel, Stephan Mueller
  • Patent number: 8492946
    Abstract: An electric machine with a resolver for a system for autocontrol of the machine includes a machine stator, a machine rotor mounted for rotation in the stator, the rotor being mounted on a shaft, and a casing enclosing this assembly. The resolver includes a fixed resolver stator centered axially in a housing inside the casing and a resolver rotor mounted on the shaft of the machine rotor inside the resolver stator. The resolver stator is locked in an axially and angularly fixed position in the housing. A mounting device is included for mounting the resolver. The mounting device includes a bearing for rotational adjustment of an angular position of the resolver rotor on the shaft of the machine rotor and a device for clamping the resolver rotor and the shaft with respect to one another in a chosen angular position. The device may include a friction race.
    Type: Grant
    Filed: September 2, 2009
    Date of Patent: July 23, 2013
    Assignees: Compagnie Generale des Etablissments Michelin, Michelin Recherche et Technique, S.A.
    Inventor: Bertrand Vedy
  • Patent number: 8492938
    Abstract: Disclosed herein is a linear vibration device. The linear vibration device includes a stator including magnets, a bracket, and a case having an inner space formed therein and coupled with the bracket; and a vibrator including coils facing the magnets, a weight body coupled with the coil, an FPC coupled with a top portion of the weight body, and an elastic member of which the one end is coupled with the case and the other end is coupled with the coil, the vibrator being accommodated in the case, wherein the magnets include a first magnet and a second magnet facing the first magnet, coupled with a top surface of the bracket, and including a magnetic fluid applied to a bottom portion and a side portion thereof.
    Type: Grant
    Filed: November 15, 2011
    Date of Patent: July 23, 2013
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventor: Seok Jun Park