Patents Examined by Leda Pham
  • Patent number: 8896177
    Abstract: An interior permanent magnet motor in provided which is made up of a permanent magnet, and a rotor core of which an insertion aperture for the permanent magnet to be inserted thereinto is formed in the rotor core. Additionally, the interior permanent magnet motor includes a first end plate which is connected to the rotor core and of which a first seating portion for the permanent magnet is disposed thereto is formed in the first seating portion and a second end plate which is connected to the rotor core and of which a second seating portion for the permanent magnet is disposed thereto is formed in the second end plate.
    Type: Grant
    Filed: June 29, 2011
    Date of Patent: November 25, 2014
    Assignee: Hyundai Motor Company
    Inventor: Myunggyu Kim
  • Patent number: 8884479
    Abstract: An oil cooled generator may have stator windings with first portions in contact with a stator core and second non-contact portions. One or more nozzles may be configured to provide a spray pattern of oil which impinges on the non-contact portions even though the nozzles may have orifices oriented so that the lines projected in alignment with longitudinal axes of the orifices do not intersect the non-contact portions of the stator windings.
    Type: Grant
    Filed: April 11, 2011
    Date of Patent: November 11, 2014
    Assignee: Honeywell International Inc.
    Inventors: Dwayne E. Burnett, Arturo Maceda
  • Patent number: 8866352
    Abstract: An alternator for a vehicle is provided which is equipped with a heat dissipator and a cooling air generator. The heat dissipator is disposed in a rectifier to cool rectifying devices. The cooling air generator generates a flow of cooling air to the heat dissipator. The heat dissipator has a plurality of sub-fins formed thereon. Each of the sub-fins is defined by a combination of a protrusion and a recess. The protrusions are formed on one of opposed major surfaces of the heat dissipator, while the recesses are formed on the other major surface, one in coincidence with each of the protrusions in a thickness-wise direction of the heat dissipator. This permits the heat dissipator to be pressed to form the protrusions and the recesses to make the sub-fins simultaneously, thus allowing a heat-dissipating area to be increased to ensure a desired degree of heat capacity thereof.
    Type: Grant
    Filed: June 8, 2012
    Date of Patent: October 21, 2014
    Assignee: DENSO CORPORATION
    Inventors: Kazuyoshi Konaya, Hiroshi Hamada, Mikio Mashino, Seiji Kondoh
  • Patent number: 8860271
    Abstract: A rotating electric machine includes a stator and a rotor. The rotor includes an iron core and permanent magnets. The iron core includes a cylindrical connection portion and ten magnetic pole portions. The cylindrical connection portion surrounds a rotation shaft. The ten magnetic pole portions, the number of which corresponding to the number of poles, are disposed radially outside the connection portion. The connection portion and the magnetic pole portions are integrated with each other. The permanent magnets are disposed between the magnetic pole portions. The magnetic pole portions include flange portions that cover parts of radially outer surfaces of the permanent magnets while allowing at least parts of the radially outer surfaces to be exposed. Each of the permanent magnets includes a tapered portion in at least a part thereof, and the tapered portion has a length in a direction perpendicular to the radial direction that decreases radially inward.
    Type: Grant
    Filed: April 20, 2012
    Date of Patent: October 14, 2014
    Assignee: Kabushiki Kaisha Yaskawa Denki
    Inventors: Mitsuru Iwakiri, Masanobu Kakihara, Kenji Watanabe, Kenichi Aoki
  • Patent number: 8860275
    Abstract: An interior permanent magnet machine includes a rotor configured to magnetically interact with a stator. First and second dividers are integrally formed within the rotor and configured to create a first layer of three respective first segments. Each of the respective first segments may be substantially arc-shaped. A plurality of first magnets may be positioned in the first layer. The first magnets may be substantially arc-shaped and defined around an arc center. A third and a fourth divider may be integrally formed within the rotor and configured to create a second layer of three respective second segments. The placement of dividers or structural webs provides for increased rotational speed and reduced rotational stress compared to an undivided arc-shaped magnet configuration.
    Type: Grant
    Filed: July 27, 2012
    Date of Patent: October 14, 2014
    Assignee: GM Global Technology Operations LLC
    Inventors: Edward L. Kaiser, Khwaja M. Rahman, Sinisa Jurkovic
  • Patent number: 8853904
    Abstract: A motor includes a base, a bushing, a bearing structure, a stator structure, a rotor structure and a magnetic element. The base has a supporting platform. The bushing is connected with the base. The bearing structure is disposed in the bushing. The bushing is threaded through the stator structure. The rotor structure has a shaft, and the shaft threads through the bearing structure. The magnetic element corresponds to the shaft and is disposed on the supporting platform, and the magnetic element magnetically interacts with the shaft. A fan equipped with the motor is also disclosed.
    Type: Grant
    Filed: March 16, 2012
    Date of Patent: October 7, 2014
    Assignee: Delta Electronics, Inc.
    Inventor: Chih-Hui Wu
  • Patent number: 8853903
    Abstract: Disclosed is a low alloy steel material for generator rotor shafts, which has tensile strength of not less than 700 MPa at room temperature. Preferably the low alloy steel material consists of, by mass percent, 0.15 to 0.35% carbon, 0.01 to 0.10% Si, 0.10 to 0.50% Mn, 1.3 to 2.0% Ni, 2.1 to 3.0% Cr, 0.20 to 0.50% Mo, 0.15 to 0.35% Cu, 0.06 to 0.14% V, and the balance of Fe and unavoidable impurities.
    Type: Grant
    Filed: September 15, 2009
    Date of Patent: October 7, 2014
    Assignee: Mitsubishi Hitachi Power Systems, Ltd.
    Inventor: Takanobu Mori
  • Patent number: 8836187
    Abstract: A vehicle drive device includes an input member coupled to an internal combustion engine; an output member coupled to a wheel; a rotating electrical machine; a fluid coupling; and a case containing at least the rotating electrical machine and the fluid coupling. The fluid coupling includes an input and an output that is paired with the input. The rotating electrical machine includes a rotor and a rotor support that extends radially inward from the rotor in an axial direction with respect to the coupling input, and supports the rotor via a support bearing. A power transmission member is formed by coupling at least the rotor support and the coupling input together so that at least the rotor support and the coupling input rotate together. A movement restricting mechanism restricts axial movement of the power transmission member toward the axial direction.
    Type: Grant
    Filed: November 19, 2010
    Date of Patent: September 16, 2014
    Assignees: Aisin Aw Co., Ltd., Toyota Jidosha Kabushiki Kaisha
    Inventors: Mikio Iwase, Tomohide Suzuki, Naoya Jinnai, Tatsuya Okishima, Toshihiko Kamiya
  • Patent number: 8829755
    Abstract: A composite permanent magnet synchronous machine includes a permanent magnet synchronous machine module having a rotor unit and a stator unit; a bottom base having an accommodation space; a top cover having a front surface; and a shaft penetrating through the front surface. The rotor unit has P rotor magnets and the stator unit has S slots, wherein a tooth part is defined between every two adjacent slots, and a coil is wound on the tooth part, where P is 38N, S is 36N, and N is a positive integer; or P is 34M, S is 36M, and M is a positive integer. The machine is suitable for wind power generators or any other machine structure.
    Type: Grant
    Filed: April 20, 2012
    Date of Patent: September 9, 2014
    Assignee: National Taiwan University of Science and Technology
    Inventors: Jonq-Chin Hwang, Chun-Yu Hsiao, Sheng-Nian Yeh
  • Patent number: 8823239
    Abstract: The invention relates to an electrical machine (8), in particular an electric motor, suitable for the adjustment by external force of elements of a motor vehicle, essentially for driving a steering booster. The inventive electrical machine comprises a rotor (7) and a shaft (10), the rotor having a plurality of plates (5), wherein the plates (5) are premounted on the shaft either individually or as a plate assembly (6) or by means of a plurality of plate assemblies (6), the rotor (7) being connected to the shaft (10). The plates (5) have resilient lugs (3) for fixing the plates (5) and/or plate assemblies (6) to the shaft (10). Furthermore, the plates (5) of the plate assemblies (6) comprise centering lugs (1) which serve to radially center the plate assembly (6) relative to the shaft (10).
    Type: Grant
    Filed: January 24, 2008
    Date of Patent: September 2, 2014
    Assignee: Robert Bosch GmbH
    Inventors: Stefan Ossenkopp, Joachim Becker, Holger Klatte, Erik Maurer, Ngoc-Thach Nguyen, Stefan Stoermer, Bruno Holzwarth, Tilo Koenig
  • Patent number: 8816551
    Abstract: A rotary actuator has a connecting member for electrically connecting a terminal to a fixing land. The connecting member is composed of a base portion, a pair of leg portions, a pair of deformation suppressing portions and a pair of holding portions. The terminal is inserted through the base portion. Each of the leg portions extends from the base portion in a radial outward direction. The leg portion is fixed to the land portion by soldering. Each of the deformation suppressing portions extends from an outer-side end of the leg portion toward the terminal. Each of the holding portions extends from an inner-side end toward a forward end of the terminal. The holding portions elastically hold the terminal between them.
    Type: Grant
    Filed: March 8, 2013
    Date of Patent: August 26, 2014
    Assignee: Denso Corporation
    Inventor: Kenichi Oishi
  • Patent number: 8810094
    Abstract: Disclosed herein is a linear vibration motor. The motor includes a stator and a vibrator. The stator includes a magnet. The vibrator includes a coil facing the magnet. A weight is coupled to the coil. A PCB is connected to the coil and the stator. An elastic member is coupled to stator and the coil. A damper is provided on the weight at a position facing the elastic member. The damper may be provided between the elastic member and the weight or between the elastic member and the inner surface of a casing. The damper can mitigate metallic high frequency noise attributable to friction between the elastic member and the weight or between the elastic member and the casing. Furthermore, the spatial utilization is increased, thereby enhancing the degree of freedom in designing the linear vibration motor.
    Type: Grant
    Filed: April 20, 2011
    Date of Patent: August 19, 2014
    Assignee: Samsung Electro-Mechanics Co., Ltd
    Inventors: An Soo Yoon, Hwa Young Oh, Joon Choi, Kwang Hyung Lee, Jun Kun Choi
  • Patent number: 8803390
    Abstract: Engaging protrusions of a lower end housing are axially snap-fitted into through holes, respectively, of a yoke housing to couple therebetween. Each of spacers is circumferentially placed between and is press-fitted between corresponding adjacent two of permanent magnets fixed to an inner peripheral surface of the yoke housing. Each spacer axially contacts a corresponding contact part of the end housing. A lower ball bearing and an upper ball bearing are supported by the lower end housing and an upper end housing, respectively, to rotatably support a shaft. A wave washer is axially positioned between the lower ball bearing and the lower end housing to exert an urging force between the lower end housing and the upper end housing through the shaft.
    Type: Grant
    Filed: September 6, 2013
    Date of Patent: August 12, 2014
    Assignee: Asmo Co., Ltd.
    Inventors: Masakatsu Uchida, Yoshimichi Sahara
  • Patent number: 8794000
    Abstract: A natural gas compression system is provided. The system may include a natural gas compressor configured to compress, and thereby pump, natural gas through a pipeline. The system may also include a natural gas burning engine, operatively coupled to the gas compressor, the engine being supplied with air by an induction system. The induction system may include a supercharger driven by the engine and configured to compress intake air and a turbocharger downstream from the supercharger and driven by exhaust gases produced by the engine. The induction system may also include a supercharger compressor bypass configured to selectively recirculate a portion of the compressed output of the supercharger upstream of the supercharger.
    Type: Grant
    Filed: November 24, 2008
    Date of Patent: August 5, 2014
    Assignee: Caterpillar Inc.
    Inventors: Darryl Dean Baldwin, Gary Nelson Boyer, William Christopher Boley, Joel D. Hiltner
  • Patent number: 8791609
    Abstract: The present invention relates to an electrical device including a stator and a rotor, wherein the electrical device is preferably a generator, a motor or similar, in particular a centrifuge motor, wherein the rotor, in particular a motor shaft is rotatably supported through at least one bearing relative to the stator, wherein at least one damping device is provided between the stator and the rotor, wherein the damping device includes at least one damping element. Thus, the device provides a high level of integrated vibration damping and internal damping of the device can be adapted to particular properties and applications.
    Type: Grant
    Filed: November 1, 2012
    Date of Patent: July 29, 2014
    Assignee: Eppendorf AG
    Inventors: Heinz-Gernhard Koehn, Peter Zehnel
  • Patent number: 8786159
    Abstract: A fixing structure for a stator core includes a stator core, a ring member fitting on the stator core, and a case covering the stator core and the ring member. The case includes a fixing portion fixing the ring member, and a fitting portion fitting on the ring member.
    Type: Grant
    Filed: December 28, 2009
    Date of Patent: July 22, 2014
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Hiroyuki Hattori
  • Patent number: 8772988
    Abstract: An electric machine includes a stator stack of laminations, pierced with a cylindrical passage for housing a rotatable rotor therein. The stator includes a magnetic circuit of laminations stacked between first and second terminal faces crossed by the passage and by a series of slots housing conductors, which are folded over to form coils. An electrically insulating reinforcing wedge piece is interposed between an internal wall of a first tubular end and a corresponding portion of a block of resin surrounding a region of winding heads of the conductors, which follow a looped path in the block of resin. A wedging unit wedges the insulating reinforcing piece in position to prevent the insulating reinforcing piece from protruding axially internally on the internal wall with respect to the region so as to leave a determined annular sector of the internal wall in direct adhering contact with the block of resin.
    Type: Grant
    Filed: September 2, 2009
    Date of Patent: July 8, 2014
    Assignees: Compagnie Generale des Etablissements Michelin, Michelin Recherche et Technique S.A.
    Inventors: Bertrand Vedy, Frederic Progin
  • Patent number: 8766495
    Abstract: A power generation element includes: a first nnagnetostrictive rod made of a nnagnetostrictive material; a rigid rod made of a magnetic material and disposed in parallel with the first nnagnetostrictive rod, the magnetic material having rigidity and a shape that enable uniform application of a compression or tensile force to the first nnagnetostrictive rod; a first coil wound around the first nnagnetostrictive rod; and two connecting yokes, each of which is provided at one end of each of the first nnagnetostrictive rod and the rigid rod to connect the first nnagnetostrictive rod and the rigid rod; wherein the power generation element generates power through expansion or contraction of the first nnagnetostrictive rod due to vibration in a direction perpendicular to a longitudinal axis of the first nnagnetostrictive rod.
    Type: Grant
    Filed: December 17, 2012
    Date of Patent: July 1, 2014
    Assignee: National University Corporation Kanazawa University
    Inventors: Toshiyuki Ueno, Yoshio Ikehata, Sotoshi Yamada
  • Patent number: 8754563
    Abstract: A recording disk is to be mounted on a hub. A base rotatably supports the hub through a bearing. A stator core is fixed to the base and includes an annular portion and a salient pole extending radially therefrom. A magnet faces the salient pole radially and is rotated with the hub. The magnet has a plurality of magnetic poles in the circumferential direction such that each of the plurality of magnetic poles faces the salient pole. The salient pole includes a rod-shaped body around which a wire is wound and a tooth portion that is provided radially outside the rod-shaped body and extends circumferentially. The circumferential end located at the end in the circumferential direction of the tooth portion is located radially inside a circumscribed circle passing through the tip located at the radially outermost end of the tooth portion.
    Type: Grant
    Filed: June 14, 2011
    Date of Patent: June 17, 2014
    Assignee: Samsung Electro-Mechanics Japan Advanced Technology Co., Ltd
    Inventors: Kazuyoshi Nagai, Akira Suzuki
  • Patent number: 8742634
    Abstract: Disclosed herein is a linear vibration motor including: a stator part including a magnetic force part and a casing receiving the magnetic force part therein; and a vibrator part including a coil facing the magnetic force part to thereby generate electromagnetic force and a printed circuit board having one end coupled to the stator part and the other end coupled to the coil, wherein the vibrator part moves linearly along a longitudinal outer peripheral surface of the casing receiving the magnetic force part therein.
    Type: Grant
    Filed: December 14, 2011
    Date of Patent: June 3, 2014
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventor: Yong Jin Kim