Bearing Or Air-gap Adjustment Or Bearing Lubrication Patents (Class 310/90)
  • Patent number: 11168736
    Abstract: A thrust washer according to an embodiment has an annular washer body having a first thrust surface and a second thrust surface that receive a thrust load, and a tapered portion formed on at least one of the first thrust surface and the second thrust surface, and the washer body has a waviness larger than a difference in height of the tapered portion in a direction perpendicular to the thrust surface.
    Type: Grant
    Filed: August 30, 2018
    Date of Patent: November 9, 2021
    Inventor: Shinya Arasaki
  • Patent number: 11149737
    Abstract: To provide a deposit detection device capable of detecting with accuracy and alarming deposits deposited in an exhaust pump used for various processes regardless of kinds and flow rate of process gas, and to provide an exhaust pump equipped with the deposit detection device. A pump control device 50 of an exhaust pump P comprises a deposit detection device which executes, as initial process, steps of reading electric current value of a motor for rotating a rotor and obtaining and storing an initial electric current value of the motor based on the electric current values read; and then executes, as next process, steps of reading the electric current value of the motor, obtaining a current value of the motor based on the electric current values read, and obtaining quantity of fluctuation of the current value of the electric current value of the motor relative to the initial value of the electric current value of the motor, thereby detecting the deposit in the pump based on the quantity of fluctuation.
    Type: Grant
    Filed: April 27, 2011
    Date of Patent: October 19, 2021
    Assignee: Edwards Japan Limited
    Inventor: Yoshihiro Enomoto
  • Patent number: 11146130
    Abstract: This motor includes a stationary portion including a stator; and a rotating portion supported to be rotatable about a central axis extending in a vertical direction with respect to the stationary portion, and including a shaft arranged to extend along the central axis. The stationary portion includes a bearing arranged to rotatably support the shaft, and a base portion arranged to hold the stator. The rotating portion includes a rotor hub portion arranged to extend in an annular shape around the shaft; a magnet directly or indirectly fixed to the rotor hub portion, and arranged opposite to the stator; a flywheel arranged axially above the rotor hub portion; and a seal portion arranged to have a thickness smaller than the thickness of the magnet. At least a portion of an outer circumferential surface of the rotor hub portion is a metal surface.
    Type: Grant
    Filed: September 16, 2019
    Date of Patent: October 12, 2021
    Assignee: Valve Corporation
    Inventors: Junya Mizukami, Yoichi Sekii, Takeyuki Shuto, Naohiro Nagasawa
  • Patent number: 11125103
    Abstract: A radial flow gas turbine generator (10) where the gas turbine generator (10) includes a shaft (30) having a rotor (20) of the generator (10), a compressor wheel (16) and a turbine wheel (18) fixed thereto. The shaft (30) is supported for rotation by a single bearing arrangement (38 provided at an axial position on the shaft (30) that is between the rotor (20) and the compressor wheel (16).
    Type: Grant
    Filed: September 13, 2017
    Date of Patent: September 21, 2021
    Assignee: Delta Motorsport Limited
    Inventors: Nicholas Carpenter, Scott Herring, Mark Wilksch
  • Patent number: 11114906
    Abstract: A stator in an electric motor and to a method for producing the stator in which a plurality of individual coils are wound on laminated stator poles and are provided with an insulation, wherein the insulation bears connection contacts for bringing the individual coils into contact with a printed circuit board, wherein the connection contacts are press-fitted into the printed circuit board. The present stator provides for a compact size and for simple and economical joining processes. In a preferred embodiment, the electric motor is a dosing pump motor for drug delivery systems.
    Type: Grant
    Filed: May 3, 2018
    Date of Patent: September 7, 2021
    Assignee: BÜHLER MOTOR GMBH
    Inventors: Jürgen Brettschneider, Richard Guttenberger
  • Patent number: 11108297
    Abstract: An aspect of a motor according to the invention includes a stator, a rotor, a detector configured to detect a rotating position of the rotor, a holder disposed between the stator and the detector in the predetermined direction, and a bearing held by the holder and configured to rotatably support the shaft. A recess opened toward the stator and housing the bearing and an injection hole including a first opening opened toward the detector, the injection hole communicating with the recess, are provided in the holder. A groove into which an adhesive is injected is provided on the inner surface of the recess. The outer circumferential surface of the bearing is fixed to the inner surface via the adhesive. The injection hole includes a second opening opened in the inner circumferential surface of the recess and connected to the groove. The injection hole is closed by a screw.
    Type: Grant
    Filed: November 14, 2018
    Date of Patent: August 31, 2021
    Inventor: Yoshiteru Nishimura
  • Patent number: 11021140
    Abstract: The invention relates to an improved plunger assembly for a vehicle brake system. The plunger assembly is operable as a pressure source to control brake fluid pressure supplied to one or more wheel brakes. The plunger assembly comprises a housing defining a cylinder; a reversible motor supported by the housing and having a rotor; and a linear actuator such as a ball screw/nut mechanism driven by the motor. A plunger head is mounted in the cylinder and driven by the linear actuator in first and second opposite directions. Improvements include a linear actuator rotationally supported on the housing by a bearing to actuate the plunger head connection to a ball screw.
    Type: Grant
    Filed: December 31, 2018
    Date of Patent: June 1, 2021
    Assignee: ZF Active Safety US Inc.
    Inventors: Joseph Starr, Blaise Ganzel
  • Patent number: 11018547
    Abstract: An electric motor includes a rotor with a rotor shaft mounted in at least one bearing bush of a friction bearing, a stator which surrounds the rotor, and at least one circular bearing plate which, relative to the rotor shaft, is mounted on the rotor shaft for co-rotation. An inner contour of the bearing plate surrounds a circumference of the rotor shaft by press-fit. The inner contour of the bearing plate is defined by at least two internal dimensions, wherein at least one internal dimension is smaller than the diameter of the rotor shaft. The at least one bearing plate is deformed in an axial direction when the bearing plate is in the pressed-in state on the rotor shaft.
    Type: Grant
    Filed: March 28, 2017
    Date of Patent: May 25, 2021
    Assignee: Johnson Electric International AG
    Inventors: Hong Jian Zhang, Bin Shi, Daniel Gerhard Pahner
  • Patent number: 11005349
    Abstract: An electric motor system includes a drive shaft that rotationally drives a load, a bearingless motor, a power source unit, and a control unit. The bearingless motor includes a rotor and a stator having armature and support windings. The bearingless motor rotationally drives the drive shaft and supports a radial load of the drive shaft in a contactless manner. The power source unit applies a voltage to the armature and support windings. The control unit controls the power source unit so that a radial support force that is a sum of a radial support force caused by a support current and a radial support force caused by both the support current and an armature current is output, and so that one of an armature voltage across the armature winding and the support current is increased and the other of the armature voltage and the support current is decreased.
    Type: Grant
    Filed: November 4, 2020
    Date of Patent: May 11, 2021
    Assignee: Daikin Industries, Ltd.
    Inventors: Takaaki Ono, Yusuke Irino, Yuji Nakazawa
  • Patent number: 10965199
    Abstract: An electric motor system includes a drive shaft that rotationally drives a load, a bearingless motor, a power source unit, and a control unit. The bearingless motor includes a rotor and a stator having armature and support windings. The bearingless motor rotationally drives the drive shaft and supports a radial load of the drive shaft in a contactless manner. The power source unit applies a voltage to the armature and support windings. The control unit controls the power source unit so that a radial support force that is a sum of a radial support force caused by a support current and a radial support force caused by both the support current and an armature current is output, and so that one of an armature voltage across the armature winding and the support current is increased and the other of the armature voltage and the support current is decreased.
    Type: Grant
    Filed: November 4, 2020
    Date of Patent: March 30, 2021
    Assignee: Daikin Industries, Ltd.
    Inventors: Takaaki Ono, Yusuke Irino, Yuji Nakazawa
  • Patent number: 10937572
    Abstract: A method for forming an article of manufacture using additive manufacturing, includes: a processor executing program instructions to: (a) rotate an object continuously about a horizontal axis using a first rotational stage, wherein the object is partially submerged in a bath of energy curable liquid formulation during the rotation; (b) control a rate of rotation of the object to achieve a desired radial thickness of a sub layer of uncured liquid formulation at a desired rotational location on the object; (c) direct an energy source to provide an energy dose onto the object at a desired rotational location, wherein the energy dose is configured to cure and solidify the sub layer; and repeat (a), (b) and (c) until a desired radial thickness of a cured liquid formulation layer is a achieved.
    Type: Grant
    Filed: April 6, 2018
    Date of Patent: March 2, 2021
    Assignee: ABB Power Grids Switzerland AG
    Inventors: Elio Alberto Perigo, Kathryn F. Murphy, Cherif Ghoul, Jonah Kadoko, Matthew Hetrich, Nikolaus Zant, Krzysztof Kasza, Lukasz Matysiak, Robert Sekula, Lukasz Malinowski, Jens Rocks
  • Patent number: 10882156
    Abstract: In a spindle device, a cover member covers a surface of a flange portion on the front side of the spindle shaft, the flange portion projecting radially outward from the outer peripheral surface of the spindle housing, and the outer peripheral surface of the spindle housing extending from the surface of the flange portion toward the front of the spindle shaft. In the cover member, a flow path for allowing a coolant to flow therethrough is formed.
    Type: Grant
    Filed: July 30, 2019
    Date of Patent: January 5, 2021
    Assignee: FANUC CORPORATION
    Inventor: Masahiro Murota
  • Patent number: 10879757
    Abstract: Disclosed is an electronic motor with two bearings. The motor is structured so that, when loaded, the majority of the load (e.g., a radial load) is borne by one of the bearings. The bearing that bears a greater load may be larger and, thus, better suited for a heavy load. In some embodiments, the larger bearing may include rolling elements that have respective radii larger than respective radii of rolling elements of the other bearing by a ratio of at least 1.5 (150%). In some embodiments, the larger bearing may have an outer race with a radius that is greater than a radius of the outer race of the smaller bearing by a ratio of at least 1.5. In some embodiments, the motors may include a third bearing between the two bearings. The third bearing may reduce vibration in the motor.
    Type: Grant
    Filed: February 15, 2018
    Date of Patent: December 29, 2020
    Assignee: GoPro, Inc.
    Inventor: Himay Rashmikant Shukla
  • Patent number: 10873237
    Abstract: A motor includes a stationary portion, a rotating portion that includes a shaft rotating about a vertically extending central axis, and a bearing portion that rotatably supports the shaft with respect to the stationary portion. The stationary portion includes a cylindrical bearing housing portion that holds the bearing portion, a stator that is radially outward of the bearing housing portion and includes a stator core, a circuit board that is below the stator core, and an annular spacer that is between the stator core and the bearing housing portion. The spacer includes multiple side wall portions that contact a radially inner surface of the stator core and a flange portion that protrudes radially outward more than the side wall portion and contacts a lower surface of the stator core.
    Type: Grant
    Filed: June 21, 2019
    Date of Patent: December 22, 2020
    Assignee: NIDEC CORPORATION
    Inventors: Shinji Takemoto, Keizo Furukawa, Tsuyoshi Hirokawa
  • Patent number: 10840769
    Abstract: In a rotating electrical machine apparatus, a rotor portion provided in a cylindrical portion and a stator portion provided in a recessed portion in which the rotor portion is housed are aligned along the rotation axis of a rim such that a force is generated in a direction opposite to the direction of a load that acts along the rotation axis of the rim of loads that act on the rim following rotation of a blade.
    Type: Grant
    Filed: October 3, 2019
    Date of Patent: November 17, 2020
    Assignee: YAMAHA HATSUDOKI KABUSHIKI KAISHA
    Inventors: Takayoshi Suzuki, Ryoma Matsuo, Satoshi Ishikawa, Noriyoshi Hiraoka
  • Patent number: 10830988
    Abstract: The subject of this invention is a laterally unconstrained magnetic joint and application of said joint in tip-tilt and piston-tip-tilt optical mounts. The laterally unconstrained magnetic joint in its basic embodiment comprises two interfacing parts: one having a flat surface interfacing a convex surface of the other, wherein one or both parts are made from permanent magnets that are magnetized along the axis of the joint, and the other of the said parts is made from a ferromagnetic material thus creating magnetic force attraction between the two parts. The resulting lack of lateral mechanical constraint between the two parts of the joint is utilized in tip-tilt mounts by decoupling an adjustor and/or actuator from the payload resulting in a simple, uniform design, while magnetic force provides retention sufficient for a wide variety of applications.
    Type: Grant
    Filed: September 9, 2018
    Date of Patent: November 10, 2020
    Assignee: Light Steering Technologies, LLC
    Inventor: Vladimir G. Krylov
  • Patent number: 10830276
    Abstract: A bearing assembly including a chamber provided with a rolling bearing supporting a rotary shaft with respect to a fixed housing. The rolling bearing has a first ring and a second ring in relative rotation one each other, at least one row of rolling elements being arranged between the rings. The chamber having Ethanol in liquid and/or gaseous state. The rings are coated with diamond-like carbon (DLC) material.
    Type: Grant
    Filed: May 28, 2019
    Date of Patent: November 10, 2020
    Assignee: Aktiebolaget SKF
    Inventors: Samuel Viault, Benoît Hauvespre, Michael Wahler
  • Patent number: 10801543
    Abstract: A radial bearing arrangement of an exhaust gas turbocharger for mounting a shaft in a bearing housing is disclosed. The radial bearing arrangement comprises a radial bearing bush arranged between the shaft and the bearing housing, wherein the radial bearing bush features a radially outwardly projecting collar, which interacts in the axial direction with an axial stop on the bearing housing. The geometry of the radially outwardly projecting collar is interrupted by cut-outs, such that a force acting on the collar as a result of an oil feed pressure is minimized, and wherein the radial bearing bush is configured such that a lubricating film can form between an end surface of the radial bearing bush and a counterpiece arranged on the shaft.
    Type: Grant
    Filed: February 6, 2018
    Date of Patent: October 13, 2020
    Assignee: ABB Schweiz AG
    Inventors: Bruno Ammann, Christian Kreienkamp, Antje Hertel, Philippe Achtnich
  • Patent number: 10804764
    Abstract: Systems and methods include a channel (114) through an upper endshield (50) that directs an air stream to cool bearings (30), lubricant, and electrical originated heat.
    Type: Grant
    Filed: December 12, 2016
    Date of Patent: October 13, 2020
    Assignee: WOLONG ELECTRIC AMERICA LLC
    Inventors: Gannon Michael Ramy, Madhava Prasad Tunuguntla, Sasidharan Nair, Balasubramaniam V., Sreeja Chandran, Kenny Loyd
  • Patent number: 10781906
    Abstract: A motor-driven power steering system includes a worm shaft unit having a worm gear, a worm wheel unit rotatably engaging with the worm gear, a housing unit having a worm receiving part formed therein to receive the worm shaft unit, and a shaft support unit having a support part located between the housing unit and the worm shaft unit to support the worm shaft unit, and a shaft pressing part located between the support part and the worm shaft unit to press the worm shaft unit towards the worm wheel unit.
    Type: Grant
    Filed: October 27, 2017
    Date of Patent: September 22, 2020
    Assignee: Hyundai Mobis Co., Ltd.
    Inventors: Chi Ho Lee, Byeong Hoon Lee
  • Patent number: 10781821
    Abstract: Provided herein is a fan motor including a columnar portion including a first accommodating portion, a second accommodating portion, and a third accommodating portion, wherein the first accommodating portion and the second accommodating portion are disposed at an upper portion and a lower portion, respectively, and have an inner diameter larger than an inner diameter of an inner circumferential surface of the columnar portion, the third accommodating portion is disposed between the first accommodating portion and the second accommodating portion, an inner diameter of the third accommodating portion is smaller than a diameter of the inner circumferential surface of the columnar portion, and the inner diameter of the first accommodating portion and the inner diameter of the second accommodating portion are larger than the diameter of the inner circumferential surface of the columnar portion.
    Type: Grant
    Filed: July 19, 2017
    Date of Patent: September 22, 2020
    Assignee: LG INNOTEK CO., LTD.
    Inventor: Dae Gil Byeon
  • Patent number: 10749410
    Abstract: A motor assembly of the present disclosure improves a combined structure between an impeller and a rotor to more firmly combine them. Furthermore, the impeller is combined with a rotor shaft without deformation, so the durability of the respective components may be improved.
    Type: Grant
    Filed: March 30, 2015
    Date of Patent: August 18, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Myung Bae Bang, Jong Jin Park, Byung Ryel In
  • Patent number: 10749422
    Abstract: According to one embodiment, linear motor translator assembly for use in an electromagnetic actuator is provided. The linear motor translator assembly includes: a cylindrical housing having a first end, a second end opposite the first end, a flanged portion at the second end, and a blind hole initiating at the second end and extending into the cylindrical housing to a blind hole base; a tubular body located within the blind hole, the tubular body including a plurality of permanent magnets; and an end cap securely fastened to the flanged portion.
    Type: Grant
    Filed: November 20, 2017
    Date of Patent: August 18, 2020
    Assignee: HAMILTON SUNSTRAND CORPORATION
    Inventor: Michael Carbone
  • Patent number: 10738708
    Abstract: An accessory drive gear for use in the integrated drive generator includes a gear body extending between a first end and a second end and having a plurality of gear teeth at a radially outer surface adjacent the first end, and the gear teeth having a gear tooth profile, with roll angles A, B, C, and D, and the roll angle at A being between 17.0 and 18.5°, the roll angle at B being between 20.0 and 21.5°, the roll angle at C being between 29.5 and 31.0°, and the roll angle at D being between 32.5 and 34.0°. In addition, an integrated drive generator is disclosed as is a method of replacing an accessory drive gear in an integrated drive generator.
    Type: Grant
    Filed: October 3, 2017
    Date of Patent: August 11, 2020
    Assignee: Hamilton Sundstrand Corporation
    Inventors: Derek R. Hochstetler, Ted A. Martin, Duane C. Johnson, Glenn C. Lemmers
  • Patent number: 10704929
    Abstract: In a general aspect, a position tracking system includes a sphere magnet that produces a magnetic field in a space. A magnetic field control system is configured to change the magnetic field by rotating the sphere magnet through a time-series of rotations over a time period. A position marker includes a magnetic field sensor that is configured to measure the magnetic field in the space during the time period. A data processing apparatus is configured to determine the position of the position marker based on magnetic field measurements obtained by the magnetic field sensor in the space during the time period.
    Type: Grant
    Filed: November 28, 2018
    Date of Patent: July 7, 2020
    Assignee: Ommo Technologies, Inc.
    Inventors: Fathollah Memarzanjany, Minjie Zheng
  • Patent number: 10697496
    Abstract: A sintered bearing includes a cylindrical portion, one-side increased-diameter portion and another-side increased-diameter portion. A metal structure of the another-side increased-diameter portion has a higher density than a metal structure of a core portion of the sintered compact. A metal structure of the cylindrical portion has an expansion along a direction of ironing by the sizing core and a higher density than the metal structure of the another-side increased-diameter portion. A metal structure of the one-side increased-diameter portion has an expansion along a direction of ironing by the sizing core and a higher density than the metal structure of the cylindrical portion.
    Type: Grant
    Filed: March 7, 2016
    Date of Patent: June 30, 2020
    Assignee: NTN CORPORATION
    Inventors: Tomonori Yamashita, Yoshinori Ito, Takashi Yamaguchi
  • Patent number: 10630119
    Abstract: An electric motor, particularly for fans for combustion air, or for an air/combustion gas mixture, in gas burners, includes a stator assembly, which in turn includes a lamination pack provided with a perimetric frame with at least one pair of pole shoes, each one of which is constituted by a winding body and an expanded head; a frame for supporting the lamination pack; and a spool of conducting wire for each pole shoe, with the interposition of an insulating support. The assembly further includes elements for reducing rotational friction, for the driving shaft of a rotor, and accommodation parts for the elements for reducing rotational friction. The motor also includes a rotor with a driving shaft, wherein the perimetric frame and pole shoes are mutually distinct elements joined with fixing components.
    Type: Grant
    Filed: February 21, 2017
    Date of Patent: April 21, 2020
    Assignee: SIT S.P.A.
    Inventors: Antonio Ranalli, Paolo Mazzieri
  • Patent number: 10619720
    Abstract: A transmission for a vehicle has a main shaft and a counter shaft, which are supported in a transmission case by bearings. Gears on the main shaft and gears on the counter shaft include: shifter gears which are not rotatable but axially movable relative to the shaft, and fixed gears which are rotatable but not axially movable relative to the shaft. Dog clutches are provided between the shifter gears and the fixed gears, and outer races of the bearings supporting the main and counter shafts are affixed to the transmission case. Vibration-absorbing elastic members are pressed against the outer races from axially outside and are set to have a volume of 50% or more of the volume of the outer races. With such configuration, the vibration of the bearings supporting both the main and counter shafts of the transmission is attenuated, and striking noise caused by shifting is reduced.
    Type: Grant
    Filed: March 24, 2015
    Date of Patent: April 14, 2020
    Assignee: Honda Motor Co., Ltd.
    Inventors: Yasushi Fujimoto, Kinya Mizuno, Hiroyuki Makita, Masashi Koyanagi
  • Patent number: 10615675
    Abstract: A stator unit included in a motor includes a base member, an armature, a circuit board, and a mold resin portion. The base member extends substantially perpendicularly to a vertically extending center axis. The armature and the circuit board are positioned above the base member. The circuit board is electrically connected to the armature. The mold resin portion covers the armature and the circuit board. In a process of forming the mold resin portion, the base member is supported by a first mold. Then, the first mold is joined to a second mold such that a cavity is provided therebetween. In this step, the second mold is pressed against a projection provided on an upper surface of the base member and on a radially outer side with respect to the circuit board in plan view. The projection thus pressed is squashed. Subsequently, molten resin is injected into the cavity.
    Type: Grant
    Filed: December 1, 2017
    Date of Patent: April 7, 2020
    Assignee: NIDEC CORPORATION
    Inventors: Hideki Aoi, Kazuhiro Ono, Jumpei Kitamura, Junya Matsuyama, Sakae Nogami, Megumi Michishita
  • Patent number: 10601294
    Abstract: A linear stepper motor includes a stator, a rotor, a cover and a longitudinally displaceable actuating rod. The stator is formed as a fully overmoulded stator assembly. The stator assembly includes a stator overmould. The rotor is received in the stator and includes a spindle. The cover is coupled to the stator assembly on the drive side of the linear stepper motor. The actuating rod is guided by the stator assembly. The spindle is only supported by its tips between two bearing balls between a stator recess of the stator overmould and a cover recess in the cover. A device and a method for manufacturing the linear stepper motor are also provided.
    Type: Grant
    Filed: January 15, 2018
    Date of Patent: March 24, 2020
    Assignee: JOHNSON ELECTRIC INTERNATIONAL AG
    Inventors: Gerd Howack, Daniel Gerhard Barthel, Andreas Kurtz, Günter Albrecht
  • Patent number: 10533698
    Abstract: A locking device and a gimbal thereof are provided. The locking device includes a mounting plate; a supporting plate slidably on the mounting plate; and a pressing device including a sliding block. The mounting plate includes a first surface, two first bosses, two first sliding grooves at inner sidewalls of the two first bosses, and a receiving groove. The supporting plate contains two second sliding grooves at positions corresponding to the first sliding grooves of the mounting plate. The sliding block is slidably disposed within the receiving groove and includes: a first side in proximity to a groove bottom, and a clamp fixing portion extending from the first side to lock the supporting plate with the mounting plate. When the sliding block is held within the second sliding groove, the supporting plate is tightened with the mounting plate by the clamp fixing portion.
    Type: Grant
    Filed: December 27, 2016
    Date of Patent: January 14, 2020
    Assignee: SZ DJI OSMO TECHNOLOGY CO., LTD.
    Inventor: Yanchong Zhao
  • Patent number: 10498189
    Abstract: A low impedance power disc is provided. The power disc is connected to a crankshaft of an engine, and includes a rotor, a connecting shaft, and a permanent magnet. The rotor is disposed separately from the permanent magnet. The connecting shaft is locked inside the rotor. A unidirectional bearing is provided and fitted on the connecting shaft. The permanent magnet is fitted on the unidirectional bearing. When the engine is running, the rotor and the permanent magnet are rotated at the same speed to generate electricity and supply the electricity to the vehicle and to charge the battery. When the engine decelerates, the rotor and the connecting shaft are decelerated synchronously with the engine, while the permanent magnet and the unidirectional bearing are continuously rotated at the speed before deceleration in order to facilitate the engine to accelerate again, so that the rotor can be quickly rotated.
    Type: Grant
    Filed: June 14, 2017
    Date of Patent: December 3, 2019
    Assignee: South Taiwan University of Science and Technology
    Inventors: Cho Yu Lee, Jui Hung Chang, Chin Fong Lim
  • Patent number: 10498194
    Abstract: A heat dissipating fan includes a base with a central tube, a stator arranged on the base and around the central tube, a rotor connected to and rotated surround the stator and a bearing unit received in the central tube of the base. The bearing unit includes a bearing and an oil seal, where the bearing and an oil seal are molded as one.
    Type: Grant
    Filed: April 12, 2017
    Date of Patent: December 3, 2019
    Assignee: CHAMP TECH OPTICAL (FOSHAN) CORPORATION
    Inventors: Yong-Kang Zhang, Yung-Ping Lin
  • Patent number: 10471439
    Abstract: A device for use in a laboratory and operable as both a centrifuge and a magnetic stirrer includes a housing defining a cavity therein, a motor coupled to the housing, and a spindle driven by the motor and rotatable about a first axis. The device also includes a first rotor removably couplable to the spindle and configured to support at least one tube therein, and a second rotor removably couplable to the spindle and including at least one magnet. The device also includes a controller in communication with the motor and operable in a first mode of operation when the first rotor is coupled to the spindle and operable in a second mode of operation when the second rotor is coupled to the spindle.
    Type: Grant
    Filed: May 17, 2016
    Date of Patent: November 12, 2019
    Assignee: HEATHROW SCIENTIFIC LLC
    Inventors: Gary Dean Kamees, Rainer Joseph Wohlgemuth, Alice Marie Jandrisits
  • Patent number: 10468942
    Abstract: A bearing includes an inner ring and an outer ring arranged to face each other with a rolling element interposed therebetween, and a housing including a housing inner supported by the inner ring and a rotor flange supported by the outer ring. The rotor flange includes a flange portion extending toward one end surface side in an axial direction of the outer ring, and a C-type retaining ring arranged at the other end surface side in the axial direction of the outer ring. A push ring formed of a resin material is provided in a gap between the flange portion and the one end surface in the axial direction.
    Type: Grant
    Filed: April 22, 2015
    Date of Patent: November 5, 2019
    Assignee: NSK LTD.
    Inventor: Hirohide Konishi
  • Patent number: 10458734
    Abstract: The present invention provides matched upper and lower firearm receivers and method of manufacturing the same. An upper receiver has a forward lug and a rear lug. A lower receiver has forward ears and rear sidewalls that form a pocket. When the upper and lower receivers are positioned together, the forward lug fits between the lower receiver ears and the rear lug fits into the pocket between the sidewalls. Forward openings are formed in axial alignment through the ears and forward lug. Rear openings are formed in axial alignment through the rear sidewalls and the rear lug. Reinforcement sleeves are fitted into the forward openings of the ears and forward lug and into the rear openings of the sidewalls and rear lug.
    Type: Grant
    Filed: September 16, 2016
    Date of Patent: October 29, 2019
    Inventor: Robert T. Faxon
  • Patent number: 10454336
    Abstract: A rotor applicable to a vacuum cleaner motor includes a rotating shaft, a rotor magnetic steel, a load blade, two bearings between the rotor magnetic steel and the load blade, and a pre-tightening spring for providing precompressions to the bearings at two sides. The bearings are arranged between the load blade and the rotor magnetic steel, so that the motor structure is simplified, the overall size of the motor is reduced, and the machining and manufacturing of the vacuum cleaner motor are facilitated. As the pre-tightening spring is arranged between the two bearings, the bearings are close to the load blade as much as possible under the effect of pre-tightening force.
    Type: Grant
    Filed: May 6, 2015
    Date of Patent: October 22, 2019
    Assignee: KINGCLEAN ELECTRIC CO., LTD.
    Inventor: Zugen Ni
  • Patent number: 10436255
    Abstract: The invention relates to a rolling element bearing comprising a first bearing ring, a second bearing ring, and a claw-pole alternator that is arranged between said two bearing rings. The claw-pole alternator includes a sequence of magnetic poles running along the first bearing ring, a sequence of magnetically-conductive claws arranged along the circumference of the second bearing ring, and a coil. Together the claws and the poles form magnetic rings that surround said coil. It is essential to the invention that the magnetically-conductive claws are only arranged along some sections of the circumference of said second bearing ring. The coil is arranged in the region of said magnetically-conductive claws. The invention also relates to a claw-pole alternator for installing in a rolling element bearing.
    Type: Grant
    Filed: March 4, 2015
    Date of Patent: October 8, 2019
    Assignee: SCHAEFFLER TECHNOLOGIES AG & CO. KG
    Inventor: Thomas Rink
  • Patent number: 10432042
    Abstract: A stator structure includes a bearing cup disposed on a base seat, a bearing, a silicon steel sheet assembly and a press member. The bearing cup has a receiving space in which the bearing is received. One end of the bearing is formed with an extension section outward extending from the bearing. The silicon steel sheet assembly is fitted around the bearing cup and has an upper end face and a lower end face. The press member is correspondingly assembled and disposed on a top end of the bearing cup. The press member has a first press section and a second press section protruding from one face of the press member. The first press section correspondingly presses the extension section of the bearing. The second press section correspondingly presses the upper end face of the silicon steel sheet assembly.
    Type: Grant
    Filed: July 19, 2017
    Date of Patent: October 1, 2019
    Assignee: ASIA VITAL COMPONENTS CO., LTD.
    Inventor: Meng Shen
  • Patent number: 10408335
    Abstract: An apparatus includes a case, a motor, a gear mechanism, a lubrication mechanism, and a cooling mechanism. The motor and the gear mechanism are housed in the case. The gear mechanism includes a specified gear and a first gear. A vertical lower section of the first gear is positioned above a surface of the oil. The lubrication mechanism lubricates the gear mechanism by the oil thrown up by the specified gear. The cooling mechanism includes an oil pump and a pipe. The oil pump and the pipe supply the oil reserved in the case to the motor. The pipe is located above the first gear. The pipe has a hole, and the oil discharged from the hole. The hole is positioned above the first gear. A normal line direction of the hole differs from a vertically downward direction. The first gear does not overlap the normal line direction.
    Type: Grant
    Filed: March 4, 2015
    Date of Patent: September 10, 2019
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Shinichiro Suenaga, Ryuichi Hasegawa, Masato Watanabe, Tatsuo Obata, Satoshi Miyanaga
  • Patent number: 10367406
    Abstract: A sliding surface located to one side in the axial direction relative to the axially central position of a rotary shaft is supported by the slide surface of a supply shaft in a slidable manner in the axial direction, the slide surface being the surface on which sliding occurs. The portion located to the other side in the axial direction side relative to the axially central position of the rotary shaft is fixed to an output shaft. The sliding surface is positioned on the surface of a hard coating, and the hard coating is positioned so as to cover a part of a substrate made of a GFRP. The slide surface is positioned on the surface of a hard coating, and the hard coating is positioned so as to cover a part of a substrate made of a GFRP.
    Type: Grant
    Filed: August 6, 2015
    Date of Patent: July 30, 2019
    Assignee: KAWASAKI JUKOGYO KABUSHIKI KAISHA
    Inventors: Takafumi Ito, Hayato Iwasaki, Yosuke Tsumura, Yoshichika Sato
  • Patent number: 10340770
    Abstract: This stator unit includes a cylindrical bearing housing arranged to extend along a central axis extending in a vertical direction; a base member arranged to fix the bearing housing; a stator fixed to an outer circumferential surface of the bearing housing; and a mold resin portion arranged to cover the stator. The stator includes a stator core including a plurality of teeth arranged to project radially outward; an insulator arranged to cover a portion of a surface of the stator core; and a plurality of coils each of which is defined by a conducting wire wound around a separate one of the teeth with the insulator therebetween. A sealing agent is arranged between at least two of the outer circumferential surface of the bearing housing, the stator core, and the insulator.
    Type: Grant
    Filed: March 17, 2017
    Date of Patent: July 2, 2019
    Assignee: NIDEC CORPORATION
    Inventors: Hideki Aoi, Megumi Michishita, Atsushi Michishita, Sakae Nogami, Takaya Okuno, Shinsuke Hamano, Hiroshi Miyamoto
  • Patent number: 10309383
    Abstract: The arrangement of the present invention is applied to a compressor which comprises a bearing hub housing a crankshaft and presenting at least a first and a second bearing portion, spaced apart by a circumferential recess. The crankshaft presents at least a first and a second support portion, spaced apart by a circumferential recess, which is offset from the circumferential recess of the bearing hub. At least one of the bearing portions and support portions has an axial extension superior to that required for radially bearing the crankshaft, the first and second bearing portions defining, with the first and second support portions, respectively, a first and a second radial bearing regions having the axial extensions required for a radial bearing for the crankshaft, presenting lower loss by viscous friction.
    Type: Grant
    Filed: April 28, 2017
    Date of Patent: June 4, 2019
    Assignee: Embraco-Industria De Compressores E Solucoes EM Refrigeracao Ltda.
    Inventor: Adilson Luiz Manke
  • Patent number: 10305351
    Abstract: An AC generator for a vehicle includes a housing having an inlet and an outlet, a stator fixed to the housing, a rotor disposed inside of the stator, a cooling fan fixed to a rotor, one or more cooling fins disposed in an air flow passage of a cooling air, and a rectifying element for rectifying an AC voltage generated by a stator winding. A positive-side cooling fin has a plurality of tapered first and second cooling holes penetrating in a thickness direction and serves as the air flow passages of the cooling air. Tapering directions of tapered surfaces extending in the thickness direction of each cooling hole in at least one pair of adjacent first and second cooling holes are reversed in the thickness direction with respect to each other.
    Type: Grant
    Filed: January 25, 2017
    Date of Patent: May 28, 2019
    Assignee: DENSO CORPORATION
    Inventor: Yosuke Sekiyama
  • Patent number: 10284045
    Abstract: An electric motor has stator with a core of magnetic material, a winding frame covering the core and windings wound around the winding frame. The core has an annular yoke and a plurality of teeth that extend radially outwardly from the yoke. The winding frame is an overmolded structure and has an insulation part that covers the core, a supporting part disposed inward of the insulation part and a plurality of ribs that connect the insulation part and the supporting part. A reinforcing ring is embedded in the supporting part. The strength of the reinforcing ring is higher than the strength of the winding frame. Thus material utilization is improved and the weight of the stator is reduced while ensuring the strength of the supporting part.
    Type: Grant
    Filed: January 29, 2016
    Date of Patent: May 7, 2019
    Assignee: JOHNSON ELECTRIC INTERNATIONAL AG
    Inventors: Yue Li, Mao Xiong Jiang, Jian Zhao, Yong Wang, Yong Li, Yan Fei Liao
  • Patent number: 10243422
    Abstract: An electric machine includes an end frame having a shaft bore extending therethrough. The end frame includes a first side and a second side. A shaft extends through the shaft bore. A bearing is supported by the end frame and is coupled to the shaft to support the shaft for rotation about a longitudinal axis. A first seal is fixedly attached to the end frame and includes an internal bore that is sized to cooperate with the shaft to form a seal point therebetween. The first seal is disposed on the first side of the end frame. A second seal is fixedly attached to the second side of the end frame. The second seal includes a movable portion in direct contact with the shaft to define a second seal point. The first seal point is on a first side of the bearing and the second seal point is on a second side of the bearing.
    Type: Grant
    Filed: August 2, 2016
    Date of Patent: March 26, 2019
    Assignee: Regal Beloit America, Inc.
    Inventor: Joseph S. Minogue
  • Patent number: 10242715
    Abstract: According to one embodiment, a disk device includes a disk-shaped recording medium, a head which processes data on the recording medium, and a housing accommodating the recording medium and the head. The housing includes a base with a side wall, and a cover having a welded portion welded to the side wall by laser welding. The welded portion includes a first welded portion welded to a first region of the side wall and having weld beads with a first shape, and a second welded portion welded to a second region of the side wall and having welded beads with a second shape different from the first shape.
    Type: Grant
    Filed: June 1, 2018
    Date of Patent: March 26, 2019
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Makoto Okamoto, Yasutaka Sasaki
  • Patent number: 10236744
    Abstract: The invention relates to a generator assembly for harvesting energy in a bearing arrangement having a first ring and a second ring. The generator assembly includes a plurality of coils attached to the first ring and configured to interact with a magnet ring with alternating magnetization directions attached to the second ring. In order to provide a versatile power supply for electric and electronic external devices in machine applications, it is proposed to provide the generator assembly with a plug connector for supplying power generated by the generator assembly to external devices.
    Type: Grant
    Filed: September 20, 2016
    Date of Patent: March 19, 2019
    Assignee: Aktiebolaget SKF
    Inventors: Georgo Angelis, Nicolaas Simon Willem Den Haak, Koos Welling
  • Patent number: 10233935
    Abstract: This invention prevents seizure of a dynamic pressure gas bearing caused upon swinging contact between a motor shaft and a sleeve and an increase in contact friction torque. It also detects rotation of auxiliary bearings. A motor includes auxiliary bearings in series with a dynamic pressure gas bearing, and a non-contact detent torque generation mechanism parallel to the auxiliary bearings suppresses rotation of the auxiliary bearings. Where Ta denotes rotation-time viscous friction torque of the dynamic pressure gas bearing, Tka denotes contact friction torque possibly causing damage to the dynamic pressure gas bearing, Tb denotes rotation friction torque of the auxiliary bearings, and Tdmax denotes maximum torque generated when rotation of the auxiliary bearings is suppressed by the non-contact detent torque generation mechanism, (Ta+Tka)>(Tb+Tdmax)>(Ta), and the rotation detecting means detects the rotation of the auxiliary bearings.
    Type: Grant
    Filed: February 15, 2016
    Date of Patent: March 19, 2019
    Assignee: Nidec Copal Electronics Corporation
    Inventors: Takashi Kanai, Hiroki Matsushita
  • Patent number: 10222243
    Abstract: Disclosed herein are systems and methods for angle measurement. According to one embodiment, the angle of rotation between a first movable portion of the device and a second fixed portion of the device is measured based on the times when a plurality of marks on a third rotating portion of the device are sensed by a plurality of sensors on both the first movable and the second fixed portions of the device. The embodiment utilizes an electronic computation device to analyze the times and provide an accurate measurement of the angle.
    Type: Grant
    Filed: August 8, 2016
    Date of Patent: March 5, 2019
    Assignee: WiSys Technology Foundation, Inc.
    Inventor: Dennis Mikkelson