Vibration Or Noise Suppression Patents (Class 310/51)
  • Patent number: 12034341
    Abstract: A rotating electrical machine includes a magnetic field-producing unit and an armature. A magnet unit is equipped with a plurality of magnets arranged adjacent each other in a circumferential direction. Each of the magnets is magnetically oriented to have an easy axis of magnetization which is aligned near a d-axis that is defined on a center of the magnetic pole to be more parallel to the d-axis than an easy axis of magnetization near a q-axis that is defined on a boundary between the magnetic poles. An armature winding includes conductive members which face the magnetic field-producing unit and are arranged at a given interval away from each other in the circumferential direction. Each of the magnets has an end surface which faces in the circumferential direction and is placed in direct contact with an end surface of a circumferentially adjacent one of the magnets.
    Type: Grant
    Filed: August 23, 2021
    Date of Patent: July 9, 2024
    Assignee: DENSO CORPORATION
    Inventor: Yuki Takahashi
  • Patent number: 12009702
    Abstract: A permanent magnet generator (PMG) system can include a stator configured to output a voltage, and a rotor assembly configured to be magnetically coupled to the stator and to rotate relative to the stator to induce the voltage. The rotor assembly can be configured to passively attenuate the voltage output from the stator in response to acceleration of the rotor assembly at or above an impulse acceleration threshold.
    Type: Grant
    Filed: May 18, 2022
    Date of Patent: June 11, 2024
    Assignee: Hamilton Sundstrand Corporation
    Inventors: Andrew R. Wilkinson, Dhaval S. Patel
  • Patent number: 11905820
    Abstract: A vibration damping device for use with downhole electronics may comprise: a device housing mechanically coupled to the downhole electronics and defining a receptacle; and an inertia element movably supported in the receptacle; wherein the volume of the receptacle is greater than the volume of the inertia element so as to define an interstitial volume therebetween and wherein the interstitial volume is occupied by a fluid or an elastomer. A method for tuning a downhole torsional damping device to match a desired downhole electronics may comprise a) calculating a set of natural frequencies and mode shapes for the downhole electronics, b) selecting a desired frequency from the calculated natural frequencies, c) tuning the damping device characteristics to match the selected frequency, d) using the mode shapes to place the damping device. The mode shapes may include antinodes and step d) includes positioning a damping device at an antinode.
    Type: Grant
    Filed: December 19, 2020
    Date of Patent: February 20, 2024
    Assignee: SCIENTIFIC DRILLING INTERNATIONAL, INC.
    Inventors: Marco Volgmann, William E. Denzel
  • Patent number: 11877698
    Abstract: A blender system is shown and described herein. In one aspect, the blender system includes a base with an interior and an exterior formed by a housing. The housing may include an air inlet port and an exhaust port. The interior of the base includes a motor bore forming an air pathway connecting the air inlet port to the exhaust port. The motor bore also includes an entry aperture fluidly connecting the motor bore to the air inlet port. The entry aperture is indirectly in line with the air inlet port. The exit aperture fluidly connects the motor bore to the exhaust port, and the exit aperture is indirectly in line with the exhaust port.
    Type: Grant
    Filed: January 10, 2022
    Date of Patent: January 23, 2024
    Assignee: VITA-MIX MANAGEMENT CORPORATION
    Inventors: Michael Arnett, Eugene J. Kozlowski
  • Patent number: 11843306
    Abstract: A system having a damper with six or more indentations on alternating sides of the damper, where each indentation is open to an outer circumferential surface of the damper and extends over halfway through a width of the damper, and six or more slots, each slot open to an undulating inner circumferential surface of the damper and extending through the width of the damper.
    Type: Grant
    Filed: May 6, 2022
    Date of Patent: December 12, 2023
    Assignee: AEROVIRONMENT, INC.
    Inventor: William John Nicoloff
  • Patent number: 11843285
    Abstract: Systems and methods for constructing a motor having a stator, and a plurality of rotor sections secured to a shaft which is positioned to rotate within a bore of the stator. Each rotor section has permanent magnets forming corresponding magnetic poles. Each rotor section has first and second inwardly facing keyways which are identically positioned in each rotor section and are configured to enable each rotor section to be alternately positioned in at least three distinct circumferential orientations with respect to a key of the shaft. A first subset of the rotor sections is secured to the shaft in a first one of the circumferential orientations, a second subset of the rotor sections is secured to the shaft in a second one of the circumferential orientations, and a third subset of the rotor sections is secured to the shaft in a third one of the circumferential orientations.
    Type: Grant
    Filed: May 3, 2021
    Date of Patent: December 12, 2023
    Assignee: BAKER HUGHES OILFIELD OPERATIONS LLC
    Inventors: David M. Tanner, Mark Bellmyer, Ameen Muhammed
  • Patent number: 11837942
    Abstract: The present disclosure provides a vibration device, including a stator, an eccentric wheel and an electromagnetic driving assembly. The eccentric wheel rotates around a rotating shaft relative to the stator. The electromagnetic driving assembly includes at least one magnetic element and an induction coil. The at least one magnetic element is disposed on the eccentric wheel. The induction coil corresponds to the magnetic element, and the induction coil is disposed on the stator. When a current is applied to the induction coil, the induction coil acts with the magnetic element to generate an electromagnetic force to drive the eccentric wheel to rotate around the rotating shaft, so that the vibration device generates a vibration. The rotating shaft is disposed on the stator.
    Type: Grant
    Filed: February 10, 2021
    Date of Patent: December 5, 2023
    Assignee: TDK TAIWAN CORP.
    Inventors: Chao-Chang Hu, Che-Wei Chang
  • Patent number: 11677283
    Abstract: An electric machine includes a stator formed from a plurality of stacked laminations and defining a center bore and a rotor disposed within the center bore. The rotor is configured to output a rotational torque in response to an input current delivered to the stator. At least one of the stacked laminations of the stator includes a pattern of perforations disposed at a yoke portion of the stator to attenuate structure-bore transmission of vibration during operation of the electric machine.
    Type: Grant
    Filed: August 4, 2020
    Date of Patent: June 13, 2023
    Assignee: FORD GLOBAL TECHNOLOGIES, LLC
    Inventors: Christopher Wolf, Franco Leonardi, Michael W. Degner
  • Patent number: 11670985
    Abstract: Provided is a method for manufacturing a cooling device and a motor housing cooling device manufactured using same, the method including the steps of: making a cooling pipe and forming the cooling pipe to a shape capable of being buried in a housing body; filling the cooling pipe with a support material; making a portion divided from the housing body as a jig body so as to support the cooling pipe against the jib body in an injection mold of the housing body; locating the cooling pipe in the injection mold of the housing body in such a manner as to be supported against the jig body and injection-molding the housing body; and after the injection molding, removing the support material from the cooling pipe.
    Type: Grant
    Filed: August 31, 2018
    Date of Patent: June 6, 2023
    Assignee: MH TECHNOLOGIES INC.
    Inventor: Jin Ho Yoo
  • Patent number: 11532297
    Abstract: According to one embodiment, a sound emitting apparatus includes an elastic member, three or more excitation actuators, and a control circuit. The elastic member has an annular shape. The excitation actuators are arranged at a predetermined angular interval on the elastic member and are configured to apply vibration to the elastic member. The control circuit is configured to generate drive signals for driving the three or more excitation actuators. There is a phase difference between drive signals for two excitation actuators separated by the predetermined angular interval, the phase difference depending on an order of a Lobe mode being a vibration mode excited on the elastic member and the predetermined angular interval.
    Type: Grant
    Filed: August 27, 2021
    Date of Patent: December 20, 2022
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventor: Tatsuhiko Goto
  • Patent number: 11462973
    Abstract: An encoder includes: a magnet rotatably supported; a control board including a magnetic field sensor that detects a magnetic field produced by the magnet and outputs a signal, and an arithmetic unit that detects rotation of the magnet on the basis of the output of the magnetic field sensor; a magnetic shielding cover made of a soft magnetic material; an encoder bracket used to fix the magnetic shielding cover; a protective cover fixed with being sandwiched between the magnetic shielding cover and the encoder bracket to cover the magnet and the control board to prevent entry of foreign substances; and a sealing member sandwiched between the protective cover and the encoder bracket. The magnetic shielding cover covers the magnet, the control board, and the protective cover, and the sealing member is compressed between the encoder bracket and the protective cover.
    Type: Grant
    Filed: April 16, 2018
    Date of Patent: October 4, 2022
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Masanori Nimura, Masashi Okuma, Daisuke Kanamori, Haruyuki Hasegawa, Takuya Noguchi, Fumiaki Tsuchiya, Toshikazu Satone
  • Patent number: 11454306
    Abstract: A transmission assembly includes a hollow spindle, an outer wall of which is provided with an outer thread; a transmission worm disposed in the hollow spindle; a first transmission nut which is thread-fitted with the transmission worm, wherein the hollow spindle is rotatably positioned relative to the first transmission nut in an axial direction, and an external portion of the first transmission nut is provided with a locking structure for limiting the first transmission nut from rotating; a second transmission nut which is thread-fitted with the hollow spindle; a bushing which is bushed outside of the hollow spindle, the second transmission nut being fixedly connected with the bushing; and a guide tube which is rotatably limited in the bushing.
    Type: Grant
    Filed: January 8, 2018
    Date of Patent: September 27, 2022
    Assignee: ZHEJIANG JIECANG LINEAR MOTION TECHNOLOGY CO., LTD.
    Inventors: Renchang Hu, Xiaojian Lu, Weiqiang Li
  • Patent number: 11440372
    Abstract: A roll stabilizer for a motor vehicle includes a plurality of sensors for detecting a plurality of measurement variables, in particular a torque sensor, a rotor position sensor and optionally an actuator temperature sensor. Each of the sensors resides on a separate sensor circuit board which is separate from a motherboard. The motherboard has electronics for evaluating the measurement variables detected by the sensors and/or for forwarding said measurement variables to an external control device.
    Type: Grant
    Filed: November 23, 2018
    Date of Patent: September 13, 2022
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventors: Maximilian Stubenvoll, David Nass, Andreas Zahnleiter
  • Patent number: 11437893
    Abstract: A planar-drive system includes a rotor and stator module with a housing, a stator assembly for driving the rotor, and a sensor module for detecting the rotor position. The sensor module has a 2D arrangement of magnetic-field sensors arranged on a carrier in first and second periodic grids, extending in first and second directions. Adjacent magnetic-field sensors are arranged at first and second distances in the first and second directions. The grids are shifted by a vector having first and second components smaller than the respective first and a second distances. The rotor has first and second magnet units, each with an arrangement of magnets with first and second periodic lengths aligned in the first and second directions. The first and second components of the vector, and a difference between the first and second distances and the respective components, are each smaller than the respective first and second periodic lengths.
    Type: Grant
    Filed: June 10, 2020
    Date of Patent: September 6, 2022
    Assignee: Beckhoff Automation GmbH
    Inventors: Rolf Brinkmann, Lukas Bentfeld, Uwe Pruessmeier
  • Patent number: 11431227
    Abstract: Methods and systems are provided for providing cooling to an electric motor via direct spray cooling. In one example, a system may include a shaft including an oil conduit extending axially therein and a plurality of openings fluidically coupling the oil conduit to an external surface of the shaft; a rotor positioned coaxial with the shaft, an inner diameter of the rotor greater than an outer diameter of the shaft; and a gas-filled chamber bounded by an inner surface of the rotor and the external surface of the shaft, the gas filled chamber fluidically coupled to the oil conduit via the plurality of openings, and a pressure of a gas in the gas-filled chamber lower than a pressure of oil in the oil conduit.
    Type: Grant
    Filed: March 3, 2020
    Date of Patent: August 30, 2022
    Assignee: Dana Belgium N.V.
    Inventor: Louis Lambourg
  • Patent number: 11374459
    Abstract: A motor includes a frame in the shape of a bottomed cylinder, a stator housed in the frame, a rotor, an end plate for closing an opening of the frame, and bearings rotatably supporting a rotary shaft of the rotor. The frame has, on its bottom, a bearing holder at the center and ribs extending like rays from the bearing holder radially outward and protruding to the inside of the frame. Each rib has a radially outer end reaching a circumferential wall of the frame.
    Type: Grant
    Filed: April 2, 2019
    Date of Patent: June 28, 2022
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Yasuharu Uchida, Kazuo Toya, Hirofumi Mizukami
  • Patent number: 11355986
    Abstract: A rotor for an electrical machine, comprising: a rotor stack with a plurality of pole teeth and windings around the pole teeth, a plurality of groove wedges, which are arranged radially above the windings, in grooves between the pole teeth, characterised in that a support element is arranged in the grooves between the windings and radially between the groove wedges and the rotor stack.
    Type: Grant
    Filed: November 29, 2019
    Date of Patent: June 7, 2022
    Assignee: VALEO SIEMENS EAUTOMOTIVE GERMANY GMBH
    Inventor: Christian Finger-Albert
  • Patent number: 11355995
    Abstract: A system having a damper with six or more indentations on alternating sides of the damper, where each indentation is open to an outer circumferential surface of the damper and extends over halfway through a width of the damper, and six or more slots, each slot open to an undulating inner circumferential surface of the damper and extending through the width of the damper.
    Type: Grant
    Filed: April 7, 2020
    Date of Patent: June 7, 2022
    Assignee: AEROVIRONMENT, INC.
    Inventor: William John Nicoloff
  • Patent number: 11296574
    Abstract: An aircraft electric machine includes an electric stator that surrounds and supports a rotor. A housing defines a sealed chamber enclosing the electric stator and is configured to maintain an absolute pressure of a gas within the chamber as an aircraft with the aircraft electric machine changes altitude.
    Type: Grant
    Filed: October 1, 2020
    Date of Patent: April 5, 2022
    Assignee: Calnetix Technologies, LLC
    Inventors: Co Huynh, John Stout
  • Patent number: 11190077
    Abstract: The present invention may provide a motor comprising: a rotation shaft; a rotor including a coupling hole in which the rotation shaft is disposed; a stator disposed outside the rotor; and a housing for receiving the rotor and the stator, wherein the housing comprises: a body; a bracket disposed on one side of the body and including a hole and a bearing pocket part disposed along the circumferential direction with respect to the center of the hole; and a bearing disposed in the bearing pocket part, wherein the inner surface of the bearing pocket part includes a first surface, a second surface, and a third surface, and wherein the first surface comes in contact with the outer circumferential surface of the bearing, the second surface comes in contact with the upper surface of the bearing, and the third surface is disposed between the first surface and the second surface in the height direction of the bracket while being spaced apart from the outer circumferential surface of the bearing.
    Type: Grant
    Filed: January 11, 2018
    Date of Patent: November 30, 2021
    Assignee: LG INNOTEK CO., LTD.
    Inventor: Yong Joo Kim
  • Patent number: 11169043
    Abstract: A balancing machine drive apparatus for driving rotational movement of a workpiece rotatably mounted about a rotational axis by a looping belt includes a frame at least partially surrounding, transaxially to the rotational axis, a workpiece mounting position and having an opening closable by an arch and through which the mounting position is accessible, the drive apparatus including guide devices on the frame and/or arch to guide the belt such that, when the arch is closed, the belt winds at least partially around a workpiece in the mounting position on a cylindrical circumferential workpiece region, and a drive device for the belt. The arch is held on the frame so as to be movable between open and closed positions. A balancing machine for balancing a workpiece includes a mounting apparatus in order to rotatably mount the workpiece about a rotational axis in a mounting position, and the drive apparatus.
    Type: Grant
    Filed: July 18, 2018
    Date of Patent: November 9, 2021
    Assignee: SCHENCK ROTEC GMBH
    Inventors: Nicole Hof, Paul Koch
  • Patent number: 11159067
    Abstract: A rotor includes a first rotating body and a second rotating body. The first rotating body includes a first rotor core and first magnets arranged in a circumferential direction. An outer side surface of the first rotating body includes first outer side surfaces curved in a circular arc shape and arranged in the circumferential direction. The first outer side surface is an outer side surface of the first magnet or an outer side surface of the first rotor core. The second rotating body is positioned on a side lower than the first rotating body in an axial direction and includes a second rotor core and second magnets arranged in the circumferential direction. An outer side surface of the second rotating body includes second outer side surfaces curved in a circular arc shape and arranged in the circumferential direction.
    Type: Grant
    Filed: December 22, 2017
    Date of Patent: October 26, 2021
    Assignee: NIDEC CORPORATION
    Inventors: Akira Ichien, Hiroshi Kitagaki, Yuya Saito, Chiharu Kobayashi
  • Patent number: 11116311
    Abstract: A telescopic tube assembly includes an outer tube and an inner tube which is telescopically inserted in the outer tube. A first stabilizing unit and a second stabilizing unit respectively located in a gap between the inner and outer tubes to make the inner tube stably moved relative to the outer tube. The first stabilizing unit includes two plates. The outer surface of each of the two plates is in contact with the inner surface of the outer tube, and the inner surface of each of the two plates is in contact with the outer surface of the inner tube. The inner tube is assembled to the outer tube by the first and second stabilizing units.
    Type: Grant
    Filed: November 21, 2018
    Date of Patent: September 14, 2021
    Inventor: Chia-Yen Huang
  • Patent number: 11101713
    Abstract: A vehicle motor is equipped with a downwind side air guiding member to guide air, flowing in from a suction port formed in an end of a frame at a first bracket side, through a stator ventilating path, into contact with an end portion of a stator coil, along the stator coil from an end portion of the stator coil, and then toward a stator core, and then to an exhaust port formed in a second bracket side of the frame end portion or in a second bracket.
    Type: Grant
    Filed: March 30, 2017
    Date of Patent: August 24, 2021
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Tatsuro Okubo, Hideo Terasawa
  • Patent number: 11031832
    Abstract: According to one embodiment, a stator includes spacing strips disposed to be interposed in the electromagnetic steel plates for each predetermined set of plates of the electromagnetic steel plates, each of the spacing strips extending in a radial direction of the stator iron core to form ventilation ducts, a spacing strip attachment plate which is disposed between the spacing strips and the set of plates of the electromagnetic steel plates to fix the spacing strips, and an insulating layer which covers the entirety of the spacing strip attachment plate and the spacing strips fixed to the spacing strip attachment plate.
    Type: Grant
    Filed: April 8, 2019
    Date of Patent: June 8, 2021
    Assignees: KABUSHIKI KAISHA TOSHIBA, Toshiba Energy Systems & Solutions Corporation
    Inventors: Shunsuke Ishizaki, Ken Nagakura, Yuichiro Gunji, Norio Takahashi, Masahiro Seki
  • Patent number: 11025111
    Abstract: A rotor for connection to a stationary member for use in an electric machine is provided. The rotor includes a body defining a center of rotation of the body. The body further defines a first surface extending in a direction generally perpendicular to the center of rotation. The rotor also includes a magnet connected to the body and an adhesive. The adhesive is positioned between the magnet and the body. The adhesive is adapted to assist in securing the magnet to the body. The first surface of the body is adapted to permit removal of material from the body and to assist in balancing the rotor.
    Type: Grant
    Filed: March 1, 2017
    Date of Patent: June 1, 2021
    Assignee: REGAL BELOIT AUSTRALIA PTY LTD
    Inventors: Matthew Turner, Greg Heins, Chen Bin
  • Patent number: 11014224
    Abstract: Systems and methods for reducing vibration in power tool. One system includes a power tool that includes a housing and a motor. The power tool further includes a magnetically susceptible fluid located within the housing. The power tool further includes an inductor configured to introduce a magnetic field to the magnetically susceptible fluid. The power tool further includes a sensor configured to indicate an amount of vibration experienced by the power tool. The power tool further includes an electronic processor coupled to the sensor and to the inductor. The electronic processor is configured to receive an input signal from the sensor indicating the amount of vibration, to generate a control signal based on the input signal, and to provide the control signal to the inductor to control the magnetic field.
    Type: Grant
    Filed: January 4, 2017
    Date of Patent: May 25, 2021
    Assignee: Milwaukee Electric Tool Corporation
    Inventors: John S. Dey, IV, Jacob P. Schneider, Matthew J. Mergener
  • Patent number: 11009057
    Abstract: A method for the connection of a first component to a second component includes providing a first component which has a projection with an undercut, and providing a second component which has a cavity. The method also includes introducing a sealing and/or connecting material into the cavity of the second component, and joining the first component and the second component together to form a component arrangement. The projection of the first component projects, in the joined state, into the cavity of the second component.
    Type: Grant
    Filed: December 14, 2018
    Date of Patent: May 18, 2021
    Assignee: Bayerische Motoren Werke Aktiengesellschaft
    Inventors: Helmut Reiter, Udo Reilaender
  • Patent number: 10958133
    Abstract: In an electric motor, a magnetic bearing generates an electromagnetic force between multiple permanent magnets and a coil and rotatably supports an other side of a rotation shaft in an axis line direction. The rotation shaft is configured to be capable of being inclined with a rotation center line using a bearing side of the rotation shaft as a fulcrum. An electronic control device controls a current that flows to the coil such that an axis line of the rotation shaft approaches the rotation center line due to a supporting force which is the electromagnetic force between the multiple permanent magnets and the coil. Accordingly, the rotation shaft is rotatably supported to be freely rotatable by a magnetic bearing and the bearing.
    Type: Grant
    Filed: October 29, 2015
    Date of Patent: March 23, 2021
    Assignees: DENSO CORPORATION, SOKEN, INC., National University Corporation Shizuoka University
    Inventors: Koji Ito, Masanori Yasuda, Shinji Makita, Jun Yamaoka, Masao Tokunaga, Etsuro Yoshino, Junichi Asama
  • Patent number: 10897179
    Abstract: A rotor for a rotary electric machine; the rotor has: a shaft, which is mounted so as to rotate around a rotation axis; a magnetic core, which is arranged around the shaft and consists of a plurality of lamination sheets stacked together; and a pair of end discs, which are arranged around the shaft at the two opposite ends of the magnetic core and are designed to keep the lamination sheets of the magnetic core stacked together; wherein the end discs are designed to have balancing holes, which dynamically balance the rotor around the rotation axis. Each end disc consists of an inner component with an annular shape, which is arranged around the shaft and is made of a first metal material, and of an outer component with an annular shape, which is arranged around the inner component and is made of a second metal material, which is different from the first metal material and is non-magnetic.
    Type: Grant
    Filed: March 12, 2019
    Date of Patent: January 19, 2021
    Assignee: MARELLI EUROPE S.p.A.
    Inventors: Marco Magri, Francesco Leli, Salvatore Stamato
  • Patent number: 10828582
    Abstract: An electric vehicle drive unit includes an inverter, a gear box, an electric motor coupled to the inverter and to the gear box, a cooling jacket, and coupled to the gear box, a main coolant inlet, a coolant outlet, and an external passive air bleed device. The cooling jacket has a cooling chamber and surrounds at least a portion of the electric motor. The main coolant inlet couples to the cooling jacket. The coolant outlet is located at a lower portion of the gear box. The external passive air bleed device runs between an upper portion of the cooling jacket and the coolant outlet. The inverter may couple to a first side of the gear box and the electric motor may couple to a second side of the gear box such that the inverter and the electric motor reside on opposite sides of the gear box.
    Type: Grant
    Filed: November 22, 2017
    Date of Patent: November 10, 2020
    Assignee: Tesla, Inc.
    Inventors: Vincent G. Johnston, Paul Daniel Yeomans, Riccardo Marco Pagliarella
  • Patent number: 10826347
    Abstract: A motor sleeve is applied to a motor housing and a motor driver housing. The motor sleeve includes a sleeve base, a second fixing structure, a second coupling structure and a plurality of base fins. The sleeve base includes an outer surface and an inner surface. The second fixing structure is disposed on the inner surface and located corresponding to a first fixing structure of the motor housing. The sleeve base is fixed to the motor housing by the first and second fixing structures. The sleeve base is installed on a side portion of the motor housing. The second coupling structure is disposed on the outer surface. The base fins are separately disposed on the outer surface and located corresponding to a first coupling structure of the motor driver housing. The motor driver housing is coupled to the sleeve base by the first and second coupling structures.
    Type: Grant
    Filed: August 14, 2018
    Date of Patent: November 3, 2020
    Assignee: CHICONY POWER TECHNOLOGY CO., LTD.
    Inventors: Chen-Shi Chou, Zong-Lin Li
  • Patent number: 10816078
    Abstract: A planet gear train for an engine casing includes a sun gear rotatable by a shaft, a ring gear, a plurality of planet gears rotatably mounted in a planet carrier and meshing with the sun gear and the ring gear, and a damping system. The damping system includes a soft mount disposed about the shaft and coupling the planet carrier the engine casing. The soft mount includes a flexible inner sleeve and a flexible outer sleeve. The flexible inner sleeve and the flexible outer sleeve are fixedly coupled together at respective central portions thereof near the shaft. The damping system further includes a plurality of damping couplers disposed about an outer flange of the planet carrier. The plurality of damping couplers is configured to flexibly couple the flexible inner sleeve to the flexible outer sleeve.
    Type: Grant
    Filed: September 20, 2018
    Date of Patent: October 27, 2020
    Assignee: General Electric Company
    Inventors: Brandon Wayne Miller, Randy M. Vondrell, Donald Albert Bradley, Bugra Han Ertas
  • Patent number: 10758036
    Abstract: An adjustable table leg which includes an inner lead screw linking an inner lead screw nut to move an outer lead screw nut along an outer lead screw, so that the inner lead screw nut drives a lead screw outer pipe to link a leg middle pipe and the outer lead screw nut to drive a lead screw inner pipe to move an leg outer pipe up and down synchronously. Therefore, the upward and downward transmission is more stable, the upward and downward adjustment is smoother, the phenomenon of jamming does not occur, the adjustment precision is higher, the stress of the inner lead screw nut and the outer lead screw nut is more uniform, the fatigue degree is reduced, and the service life is increased.
    Type: Grant
    Filed: September 19, 2018
    Date of Patent: September 1, 2020
    Assignee: DONG GUAN SONG WEI ELECTRIC TECHNOLOGY CO., LTD.
    Inventor: Weilin Lu
  • Patent number: 10734851
    Abstract: A motor includes a rotor frame; a shaft; first and second rotor magnets that are coupled with the shaft, formed separately, and spaced apart in an axial direction of the shaft; a stator portion having a stator core, a winding around the stator core, and a plurality of first salient pole portions; a torque holding portion facing the rotor magnets in a radial direction, being arranged between the rotor frame and the stator portion in the axial direction of the shaft, and having a plurality of second salient pole portions; and a circuit board arranged, in the axial direction of the shaft, on a side of the stator portion opposite the rotor frame. An electronic component is arranged at the circuit board.
    Type: Grant
    Filed: March 7, 2018
    Date of Patent: August 4, 2020
    Assignee: MINEBEA MITSUMI INC.
    Inventors: Akio Ando, Hirotaka Sato, Toshiyuki Nishikata
  • Patent number: 10724574
    Abstract: A bearing device includes an annular hub cap facing an inner ring. An inner annular surface of the hub cap abuts a part of one end surface of the inner ring which extends from an inner peripheral edge to an intermediate position located on the way from the inner peripheral edge to an outer peripheral edge. An annular adhesive retaining portion is formed between the area extending from the intermediate position to the outer peripheral edge of one end surface and at least an inclined annular surface of the hub cap.
    Type: Grant
    Filed: May 29, 2019
    Date of Patent: July 28, 2020
    Assignee: MINEBEA MITSUMI INC.
    Inventor: Tadashi Uchida
  • Patent number: 10707798
    Abstract: The present embodiment is a high rotor pole switched reluctance machine (HRSRM) which provides a plurality of combinations of the number of rotor poles Rn and number of stator poles Sn utilizing a numerical relationship defined by a mathematical formula, Rn=2Sn?Fp, when Sn=m×Fp, wherein Fp is the maximum number of independent flux paths in the stator when stator and rotor poles are fully aligned, and m is the number of phases. The mathematical formulation provides an improved noise performance and design flexibility to the machine. The mathematical formulation further provides a specific number of stator and rotor poles for a chosen m and Fp. The HRSRM can be designed with varying number of phases. The HRSRM provides a smoother torque profile due to a high number of strokes per revolution.
    Type: Grant
    Filed: December 28, 2017
    Date of Patent: July 7, 2020
    Assignee: Software Motor Company
    Inventors: Mahesh Krishnamurthy, Trevor Creary, Piyush Desai, Mark Johnston
  • Patent number: 10704566
    Abstract: The invention refers to a connector unit formed out a side piece of a blower housing and an engine mounting plate for a drive motor of a blower, whereby the engine mounting plate is attachable to the side piece in a variety of rotational or alternatively angular positions vis-à-vis a rotational axis that runs in an axial direction to the side piece.
    Type: Grant
    Filed: February 22, 2018
    Date of Patent: July 7, 2020
    Assignee: ebm-papst Landshut GmbH
    Inventors: Martin Deininger, Martin Hertreiter, Frank Schlopakowski
  • Patent number: 10697454
    Abstract: A method of manufacturing a two-piece counterweight for a scroll compressor is provided. The method includes molding an outer plate, and molding a base having a first opening configured to receive a scroll compressor drive shaft having a longitudinal axis, and configuring the base for assembly and attachment to the drive shaft. The method also includes attaching the outer plate to the base such that the outer plate is axially offset from the base. In a particular embodiment of this method, the base and outer plate are molded from powdered metal. In certain embodiments, the base and outer plate include one or more openings aligned to permit attachment by inserting a mechanical fastener through the aligned openings. In alternate embodiments, the base and outer plate are attached via brazing or welding.
    Type: Grant
    Filed: March 8, 2016
    Date of Patent: June 30, 2020
    Assignee: BITZER Kuehlmaschinenbau GmbH
    Inventors: Carl F. Stephens, Lauren A. Markley
  • Patent number: 10677061
    Abstract: A shear flow turbomachinery device includes a housing having housing walls defining a cavity, a shaft extending into the cavity though a shaft opening in the housing wall at an end of the cavity, a rotor coupled to the shaft within the cavity, the rotor having a plurality of disks extending radially outward from a central axis of the rotor, the disks having a spaced arrangement forming a gap between adjacent disks, and a shroud for shrouding the rotor, the shroud including a pair of end disks coupled to opposing ends of the rotor, a screen extending between outer edges of the pair of end disks, the screen extending around the rotor between the rotor and the housing walls, wherein the shroud is freely rotatable independent of rotation of the rotor to reduce drag on the disks due to the housing walls when the cavity if filled with fluid and the shaft and plurality of disks are rotated.
    Type: Grant
    Filed: September 9, 2016
    Date of Patent: June 9, 2020
    Inventor: Douglas Lloyd Lockhart
  • Patent number: 10668799
    Abstract: A rotary electric machine unit includes a rotary electric machine, a case accommodating the rotary electric machine, a power control unit configured to control the rotary electric machine and mounted on the case by directly connecting a unit-side connector provided on a bottom surface of the power control unit to a case-side connector provided on an upper surface of the case; and a sound absorbing member provided between the upper surface of the case and the bottom surface of the power control unit.
    Type: Grant
    Filed: February 7, 2019
    Date of Patent: June 2, 2020
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Satoshi Honjo, Hirofumi Suzumori
  • Patent number: 10666112
    Abstract: A system having a damper with six or more indentations on alternating sides of the damper, where each indentation is open to an outer circumferential surface of the damper and extends over halfway through a width of the damper, and six or more slots, each slot open to an undulating inner circumferential surface of the damper and extending through the width of the damper.
    Type: Grant
    Filed: June 12, 2017
    Date of Patent: May 26, 2020
    Assignee: AEROVIRONMENT, INC.
    Inventor: William John Nicoloff
  • Patent number: 10650799
    Abstract: The disclosure relates to an active vibration absorption system for absorbing the vibrations of a vibrating element. The vibration absorption system comprises a structure-borne sound exciter having a coupling element for coupling to the vibrating element and having an electrical coil for moving the coupling element by means of a coil current. The structure-borne sound exciter is designed to provide a measurement signal correlated with a detected induced voltage. Furthermore, the vibration absorption system comprises a control device, which is designed to identify a target current intensity of the coil current in accordance with the measurement signal and to control an actual current intensity of the coil current to the target current intensity. The target current intensity is designed to adjust the motion of the coupling element in such a way that the vibrations of the element are at least partly absorbed.
    Type: Grant
    Filed: October 4, 2017
    Date of Patent: May 12, 2020
    Assignee: Audi AG
    Inventors: Gerald Dreffke, Lars Hinrichsen, Florian Bock
  • Patent number: 10644567
    Abstract: The present invention provides a motor including: a housing; a control part coupled to the housing; a stator assembly coupled to an inside of the housing and connected to the control part; a rotor disposed inside the stator; a rotary shaft coupled to the rotor; and a sensor connecting part including a body mounted on the housing and having a sensor mounting part, and a terminal included in the body and connected to the sensor mounting part and the control part, wherein the sensor mounting part is disposed outside the housing, and thus provides advantageous effects in that a configuration and an operation of connecting sensors to a control module are simplified, efficiency of an assembly operation is increased, and reliability of sensing information is improved.
    Type: Grant
    Filed: August 6, 2015
    Date of Patent: May 5, 2020
    Assignee: LG INNOTEK CO., LTD.
    Inventor: Chan Seok Kim
  • Patent number: 10634497
    Abstract: The invention provides a laser beam projecting unit in which a hollow rotation shaft is provided on a fixed portion via one bearing, a rotor of an axial gap-type motor is provided on one end portion of the rotation shaft, a stator of the axial gap-type motor is provided on the fixed portion so as to confront the rotor, an attracting force between the rotor and the stator acts on the bearing as a pressurization, an angle detector for detecting a rotation angle of the rotation shaft is provided on the other end portion of the rotation shaft, a deflection optical component is provided inside the rotation shaft, and a laser beam is projected through the deflection optical component.
    Type: Grant
    Filed: July 25, 2017
    Date of Patent: April 28, 2020
    Assignee: TOPCON Corporation
    Inventors: Fumio Ohtomo, Hideyuki Matsumoto, Kazuki Osaragi, Takahiro Inoue
  • Patent number: 10637324
    Abstract: An electric actuator includes a motor having a rotary shaft. The electric actuator further includes a vibration damping gasket mounted on the motor. The vibration damping gasket includes an annular body attached around the motor and an end wall formed on one end of the annular body, and the end wall defines a through hole allowing the rotary shaft to pass therethrough. The motor further includes an outer housing, and the annular body of the vibration damping gasket is attached around the outer housing. The end wall of the vibration damping gasket contacts with the end surface of the outer housing. The vibration damping gasket is made from a resilient material. The electric actuator can effectively reduce the mechanical vibration, improve a buffering effect thereof, and hence reduce the noise.
    Type: Grant
    Filed: March 21, 2017
    Date of Patent: April 28, 2020
    Assignee: JOHNSON ELECTRIC INTERNATIONAL AG
    Inventors: Dao Long Xiao, Jing Xin Shi, Yuan Feng Liu, Si Jun Zhao, Hong Min Wei, Shu Ze Li, Bin Liu, Xiang Chun Duan, Hui Juan Xing, Fei Fei Huang
  • Patent number: 10630136
    Abstract: An air-conditioning blower motor unit includes a brushless motor that is controlled by electronic parts arranged on a circuit board. A rotation shaft of the brushless motor that rotates a blower fan is rotatably held by bearing holders. The bearing holders and the circuit board are held by a support disk without overlapping each other. The support disk is held by the bearing holders via a vibration absorber.
    Type: Grant
    Filed: January 29, 2018
    Date of Patent: April 21, 2020
    Assignee: KEIHIN CORPORATION
    Inventor: Masaaki Ishizaki
  • Patent number: 10630139
    Abstract: A downhole-type system includes a rotatable rotor, a magnetic thrust bearing coupled to the rotor, and a mechanical thrust bearing coupled to the rotor. The magnetic thrust bearing is configured to support a first portion of an axial load of the rotor during rotor rotation, and the mechanical thrust bearing is configured to support a second portion of the axial load of the rotor during rotor rotation.
    Type: Grant
    Filed: May 8, 2018
    Date of Patent: April 21, 2020
    Assignee: Upwing Energy, LLC
    Inventors: David Biddick, Patrick McMullen, Kuo-Chiang Chen
  • Patent number: 10619639
    Abstract: A motor includes a housing, a stator and a rotor. The stator is disposed in the housing. The rotor is rotatably supported on the stator. The motor further includes a shock absorbing member and a fastener. The fastener extends through the shock absorbing member and the stator, and the fastener is fixedly connected to the housing. The motor of the present invention operates with low noise. The present invention further provides a fluid delivery device using the motor.
    Type: Grant
    Filed: May 24, 2017
    Date of Patent: April 14, 2020
    Assignee: JOHNSON ELECTRIC INTERNATIONAL AG
    Inventors: Yue Li, Mao Xiong Jiang, Ke Lin Zhou, Jian Zhao, Yong Li, Yong Wang
  • Patent number: 10615666
    Abstract: An electric motor having internal closed loop cooling includes a cooling chamber coupled to the stator cover of the electric motor. A fan is positioned to circulate air through the interior of the electric motor and the cooling chamber. A heat sink in the cooling chamber removes heat from the circulating air. The heat sink may be coupled to a fluid cooling jacket to transfer heat thereto or therefrom.
    Type: Grant
    Filed: September 13, 2017
    Date of Patent: April 7, 2020
    Assignee: Canrig Drilling Technology Ltd.
    Inventors: Charles Patrick, Kevin Williams