Patents Examined by Burton Mullins
  • Linear motor with electromagnetically actuated spring mover
    Patent number: 9685847
    Abstract: Reluctance-based resonant linear motors and methods of operation are provided. An example linear motor includes a spring having a plurality of coils. The linear motor includes a stator coaxially surrounding at least a portion of the spring. The stator includes a plurality of teeth. The linear motor includes a plurality of windings respectively positioned within a plurality of winding cavities respectively formed by the plurality of teeth. The application of electrical energy to the plurality of windings generates a magnetic field that flows through one or more of the coils of the spring. The flow of the magnetic field through the one or more coils of the spring causes the spring to actuate towards a compressed position. An example method includes periodically applying electrical energy to the plurality of windings such that the spring oscillates at a resonance frequency associated with the linear motor.
    Type: Grant
    Filed: January 31, 2014
    Date of Patent: June 20, 2017
    Assignee: Haier US Appliance Solutions, Inc.
    Inventor: Mariano Pablo Filippa
  • Brushless motor and rotor
    Patent number: 9673669
    Abstract: A brushless motor includes a rotor. The rotor includes a first rotor core, a second rotor core and a field magnet. The first rotor core includes a plurality of first magnetic pole portions arranged in a circumferential direction. The second rotor core includes a plurality of second magnetic pole portions arranged in the circumferential direction. The field magnet is arranged between the first rotor core and the second rotor core in an axial direction. When the field magnet is magnetized in the axial direction, the first magnetic pole portions function as first magnetic poles and the second magnetic pole portions function as second magnetic poles.
    Type: Grant
    Filed: November 8, 2013
    Date of Patent: June 6, 2017
    Assignee: ASMO CO., LTD.
    Inventors: Yoji Yamada, Koji Mikami, Chie Morita, Takahiro Tsuchiya, Seiya Yokoyama, Takayoshi Suzuki
  • Motor and rotor
    Patent number: 9667107
    Abstract: A motor including a stator and a rotor. The stator includes teeth and windings. Each tooth has a distal portion defined by a radially inward side of the stator. The rotor, which is arranged inward in the radial direction from the stator, includes a rotor core, magnets, and salient poles. Each salient pole is separated by a void from the magnet that is adjacent in the circumferential direction. The distal portion of each tooth is longer than a radially outward side of each magnet.
    Type: Grant
    Filed: May 27, 2014
    Date of Patent: May 30, 2017
    Assignee: Asmo Co., Ltd.
    Inventors: Yoji Yamada, Seiya Yokoyama, Keisuke Koide, Yoshiaki Takemoto, Shigemasa Kato
  • Device for hybrid vehicle with anti-dust flange between electric machine and reaction plate
    Patent number: 9662966
    Abstract: A device for a motor vehicle transmission assembly, comprising:—an electric machine (3) comprising a rotor (9) able to rotate about an axis X and a stator (8), the rotor (9) being arranged inside the stator (8), separated from the stator (8) by an annular air gap space (300),—a clutch (2) coaxial with the electric machine comprising a reaction plate (10), the reaction plate (10) rotating as one with the rotor (9) and being positioned an axial distance from said rotor (9) in order to leave space between the electric machine (3) and the reaction plate (10), the assembly being fitted with a dust ring (301) positioned axially in the space between the electric machine (3) and the reaction plate (10) and extending radially far enough to cover the annular air gap space (300).
    Type: Grant
    Filed: September 20, 2013
    Date of Patent: May 30, 2017
    Assignee: Valeo Equipements Electriques Moteur
    Inventors: Khadija El Baraka, Svetislav Jugovic
  • Permanent magnet electrical machine rotors with stacked annular magnets and retainers and construction methods therefor
    Patent number: 9667109
    Abstract: Permanent magnet electrical machine rotors and construction methods can include at least one magnet and at least one retention element. An axial relative force maintained between one or more magnets and one or more retention elements can urge the retention element along one or more magnet surfaces to induce a hoop stress in the retention elements and a compressive stress within the magnets.
    Type: Grant
    Filed: March 14, 2012
    Date of Patent: May 30, 2017
    Assignee: ABB Research Ltd.
    Inventor: Darren Dale Tremelling
  • Canned motor and vacuum pump
    Patent number: 9660496
    Abstract: Provided is a canned motor to be coupled to a vacuum pump and used as a rotary driving source for the vacuum pump. The canned motor includes: a stator core; a rotor provided on an inner side of the stator core; and a non-conductive can provided between the stator core and the rotor. The non-conductive can is configured to separate the stator core and the rotor from each other. The non-conductive can is made of resin, ceramic, or composite material thereof. The non-conductive can is bonded to the stator core with an adhesive.
    Type: Grant
    Filed: September 18, 2015
    Date of Patent: May 23, 2017
    Assignee: Ebara Corporation
    Inventors: Takashi Hozumi, Naoya Yoshida, Yoshinori Ojima, Takanori Inada, Toshiharu Nakazawa, Atsushi Oyama
  • Method of making a lundell claw rotor with resin
    Patent number: 9653976
    Abstract: A method of manufacturing a rotor for an electric rotating machine is provided. According to the method, resin is applied and impregnated to a surface of a winding through windows of a wavy clearance between pawl parts opposed to each other of a pair of pole cores. Uncured resin having fluidity is dropped to at least one part area of the outer surface of the winding. The uncured resin, immediately after dropping, is spread on the outer surface of the winding, and the uncured resin adheres to the outer surface of the winding other than the part area.
    Type: Grant
    Filed: March 1, 2012
    Date of Patent: May 16, 2017
    Assignee: DENSO CORPORATION
    Inventor: Hiroki Matsuhisa
  • Rotor device of integrated stater-generator motor and rotor working system
    Patent number: 9653959
    Abstract: A rotor device of an integrated starter-generator motor and a rotor working system are disclosed in the present invention. The rotor device is a monobloc cast, that is machined, to form an inseparable one-piece structure. The rotor device takes the shape of a straw hat and is provided with an external side surface of a hat top being surface (11), an external side surface of a hat brim being surface (13), an inner side surface of the hat brim being surface (12) and a surface (14) which connects the surface (11) with the surface (13). The surface (11) of the rotor device is provided with multiple through holes (1) used for fixing with a crankshaft (82). The surface (12) of the rotor device is provided with multiple threaded holes (2) used for connecting with a clutch. The threaded holes (2) pass through the surface (13) corresponding to the surface (12).
    Type: Grant
    Filed: November 16, 2010
    Date of Patent: May 16, 2017
    Assignee: Jing-Jin Electric Technologies Co., Ltd.
    Inventors: Ping Yu, Zhenjun Zhang, Wei Cai
  • Electric machine rotor with rotor vent and axial slot fluid communication
    Patent number: 9653954
    Abstract: A rotor of an electric machine is provided and includes first and second core elements formed to define annular arrays of axial slots and rotor bar openings, each axial slot being fluidly communicative with a corresponding one of the rotor bar openings and a spacer element interposed between the first and second core elements to define a rotor vent opening fluidly communicative with the axial slots.
    Type: Grant
    Filed: September 18, 2013
    Date of Patent: May 16, 2017
    Assignee: SIEMENS INDUSTRY, INC.
    Inventor: Nicholas G. Lang
  • Rotary motor and manufacturing method therefor
    Patent number: 9647503
    Abstract: The present invention provides a rotary motor including at least a field magnet having field winding, and an armature having armature winding with an electrically insulating coating material applied thereto, and the coating material includes at least two layers of: a lower-layer coating material including a first low-viscosity resin liquid; and an upper-layer coating material including a second low-viscosity resin liquid with at least hollow glass beads and a thermoplastic resin added thereto. Thus, a rotary motor can be achieved which achieves a balance between an efficiency improvement and reliability.
    Type: Grant
    Filed: June 14, 2012
    Date of Patent: May 9, 2017
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventor: Yoshikazu Yamagata
  • Motor and method for manufacturing motor
    Patent number: 9647506
    Abstract: A brush holder is held between a flange of a yoke housing and a gear housing of a speed reduction unit and fastened by a fastening screw. A link of the brush holder is located between a screw fastening portion of the flange and a screw fastening portion of the gear housing. A connector is linked to a holder main body by the link. The link includes a screw insertion hole and first and second bridges. A metal terminal, which electrically connects the holder main body and the connector, is embedded in each of the first and second bridges.
    Type: Grant
    Filed: September 8, 2014
    Date of Patent: May 9, 2017
    Assignee: ASMO CO., LTD.
    Inventor: Shingo Oomori
  • Electric machine
    Patent number: 9647512
    Abstract: The electric machine has a casing housing a stator and a rotor and containing a gas, and a dryer for the gas. The dryer is connected to the casing. The dryer includes a separation group, for separating humidity from the gas, a water accumulator, for at least temporally accumulating water discharged from the separation group, at least a detector for the water contained in the water accumulator.
    Type: Grant
    Filed: January 20, 2015
    Date of Patent: May 9, 2017
    Assignee: General Electric Technology GmbH
    Inventors: Carsten Meinecke, Christian Gaede, Habib Taghizadegan
  • Wind turbine generator
    Patent number: 9641050
    Abstract: A wind turbine generator comprising a rotor, a stator and an air gap between a gap-delimiting region of the stator and a gap-delimiting region of the rotor; wherein the rotor and/or the stator are deformable under operational loads and configured in such a way that the air gap resulting from the presence of operational loads is more uniform than the air gap in the absence of operational loads. A method for optimizing an air gap between a gap-delimiting region of a stator and a gap-delimiting region of a rotor of a wind turbine generator, said rotor and/or said stator being deformable under operational loads and said optimization consisting in that the air gap resulting from the presence of the set of operational loads is more uniform than the air gap in the absence of the set of operational loads.
    Type: Grant
    Filed: July 17, 2012
    Date of Patent: May 2, 2017
    Assignee: ALSTOM Renovables España, S.L.
    Inventors: Guillermo Fabregat Balboa, Daniel García I Erill, Santiago Claramunt Estecha
  • Rotating electric machine
    Patent number: 9641040
    Abstract: Provided is a rotating electric machine capable of preventing an outer race of a bearing from rotating because of a reduction in force for coupling a bearing housing portion and the outer race of the bearing. A resin case (24) uses thermal expansion to fill a clearance between the bearing housing portion and the outer race of a counter-driving side bearing. A hook (25) projecting inward in a radial direction is formed at least at one position on a circumferential edge portion of the resin case (24) on a side opposite to a rotor. The bearing housing portion includes a concave portion to which the hook (25) is to be locked, which is formed on a flange portion inside of which a shaft passes.
    Type: Grant
    Filed: February 16, 2012
    Date of Patent: May 2, 2017
    Assignee: Mitsubishi Electric Corporation
    Inventor: Yoshihiro Shinosaka
  • Magnetic bearing device and vacuum pump
    Patent number: 9624974
    Abstract: A magnetic bearing device comprises a controller configured to obtain magnetic levitation information of the rotor shaft by AD sampling of current detection signals from the plurality of current sensors and a sum signal obtained by adding the pair of current detection signals relating to the pair of electromagnets, and perform PWM control of the excitation amplifiers based on the magnetic levitation information. The controller performs PWM control so that a length of one of an on-duty period and an off-duty period of the PWM carrier signal is always longer than a predetermined time period based on an attenuation characteristic of a spike noise produced in the electromagnetic current, and performs the AD sampling after the predetermined time period passes from starting timing of one of the on-duty period and the off-duty period.
    Type: Grant
    Filed: January 16, 2014
    Date of Patent: April 18, 2017
    Assignee: Shimadzu Corporation
    Inventors: Junichiro Kozaki, Yoshihiro Nagano
  • Airflow control arrangement
    Patent number: 9624908
    Abstract: An airflow control arrangement for a direct-drive wind-turbine with a generator comprising a rotor and a stator, which airflow control arrangement comprises an outflow fan arranged to draw an exit airflow through an exit duct, which exit duct extends from an interior cavity of the stator to the exterior of the wind turbine. The invention further describes a direct-drive wind turbine comprising such an airflow control arrangement. The invention further describes a method of controlling an airflow in a direct-drive wind-turbine with a generator comprising a rotor and a stator is provided.
    Type: Grant
    Filed: April 16, 2014
    Date of Patent: April 18, 2017
    Assignee: SIEMENS AKTIENGESELLSCHAFT
    Inventors: Giovanni Airoldi, Uffe Eriksen, Soeren Gundtoft, Claus Michaelsen, Thorkil Munk-Hansen, Peter Hessellund Soerensen, Claus Thygesen, Xavier Tourde
  • Motion controlled actuator
    Patent number: 9611926
    Abstract: A device can have an outer frame and an actuator. The actuator can have a movable frame and a fixed frame. At least one torsional flexure and at least one hinge flexure can cooperate to provide comparatively high lateral stiffness between the outer frame and the movable frame and can cooperate to provide comparatively low rotational stiffness between the outer frame and the movable frame.
    Type: Grant
    Filed: December 9, 2013
    Date of Patent: April 4, 2017
    Assignee: DIGITALOPTICS CORPORATION MEMS
    Inventors: Roman C. Gutierrez, Robert J. Calvet, Ankur Jain, Xiaolei Liu, Guiqin Wang
  • Canned motor and vacuum pump
    Patent number: 9614411
    Abstract: Provided is a canned motor to be coupled to a vacuum pump and used as a rotary driving source for the vacuum pump. The canned motor includes: a stator core; a rotor provided on an inner side of the stator core; and a non-conductive can provided between the stator core and the rotor. The non-conductive can is configured to separate the stator core and the rotor from each other. The non-conductive can is made of resin, ceramic, or composite material thereof. The non-conductive can is bonded to the stator core with an adhesive.
    Type: Grant
    Filed: March 28, 2013
    Date of Patent: April 4, 2017
    Assignee: Ebara Corporation
    Inventors: Takashi Hozumi, Naoya Yoshida, Yoshinori Ojima, Takanori Inada, Toshiharu Nakazawa, Atsushi Oyama
  • Linear drive and piston pump arrangement
    Patent number: 9614424
    Abstract: A linear drive, in particular for a piston pump, includes a first electromagnetic drive device, a second electromagnetic drive device, and a drive piston configured to be moved in an axial direction by the drive devices. The first drive device and the second drive device are each in the form of a reluctance drive device. The reluctance drive devices each have a stator with a stator coil that engages around the drive piston in a circumferential direction. The reluctance drive devices each also have a coil core with a coil receptacle, open in a radial direction toward the drive piston, for the coil winding. A piston pump arrangement includes the linear drive.
    Type: Grant
    Filed: December 5, 2013
    Date of Patent: April 4, 2017
    Assignee: Robert Bosch GmbH
    Inventors: Anton Paweletz, Michael Knoop, Dietmar Kratzer, Daniel Gosse
  • Rotary electric machine and method of manufacturing the same
    Patent number: 9608493
    Abstract: In a rotary electric machine including a stator and a rotor, the stator includes: a connected core (1) composed of a plurality of cores in which a first core (1b) and a second core (1c) are paired to connect in a belt shape to be rounded into a substantially cylindrical shape by being folded at a core connecting portion (1d) so as to surround the rotor; a plurality of coils in which a first coil (3f) and a second coil (3g) are paired; and a crossover wire (3c) which connects the winding end (3b) of the first coil (3f) to the winding start (3d) of the second coil (3g). The crossover wire (3c) are arranged on the inner diameter side than the core connecting portion (1d).
    Type: Grant
    Filed: September 22, 2010
    Date of Patent: March 28, 2017
    Assignee: Mitsubishi Electric Corporation
    Inventors: Hiromu Nonoguchi, Kazuhisa Takashima