Bearing Or Air-gap Adjustment Or Bearing Lubrication Patents (Class 310/90)
  • 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
    Inventors: Yong-Kang Zhang, Yung-Ping Lin
  • 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: 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
    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
    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
    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
    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
    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
    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
    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
    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
    Inventors: Yue Li, Mao Xiong Jiang, Jian Zhao, Yong Wang, Yong Li, Yan Fei Liao
  • 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: 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: 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
  • Patent number: 10158269
    Abstract: An electric motor includes a frame including a cylindrical frame housing having an open end, a sleeve fitted in the frame housing, a stator attached to the outer peripheral part of the frame housing, and a rotor including a magnet disposed opposite to the stator and rotating shaft 9 rotatably and pivotally supported by the sleeve and having one fixed end. At a center portion of rotating shaft 9, tapered part 9d whose diameter decreases toward front end part 9a side is formed. Oil is provided to a gap between rotating shaft 9 and the sleeve.
    Type: Grant
    Filed: February 22, 2018
    Date of Patent: December 18, 2018
    Inventor: Tsuyoshi Kurita
  • Patent number: 10149936
    Abstract: An operable implant adapted to be implanted in the body of a patient. The operable implant comprising an operation device and a body engaging portion, the operation device comprises an electrical motor comprising a static part comprising a plurality of coils and a movable part comprising a plurality of magnets, such that sequential energizing of said coils magnetically propels the magnets and thus propels the movable part. The operation device further comprises an enclosure adapted to hermetically enclose the coils of the static part, such that a seal is created between the static part and the propelled moving part with the included magnets, such that the coils of the static part are sealed from the bodily fluids, when implanted.
    Type: Grant
    Filed: September 14, 2015
    Date of Patent: December 11, 2018
    Inventor: Peter Forsell
  • Patent number: 10110088
    Abstract: In a method for monitoring a state of a safety bearing of a rotor shaft of a machine, with the rotor shaft being supported by a magnetic bearing and the safety bearing having an outer ring and an inner ring arranged for rotation with respect to the outer ring, the rotor shaft of the machine is caught with the safety bearing when the magnetic bearing of the machine fails. The magnetic bearing is witched off for monitoring the state of the safety bearing. The rotor shaft is rotated with the machine under control of a higher-ranking controller by using a defined motion sequence, and a physical variable of the safety bearing is measured with a sensor.
    Type: Grant
    Filed: February 2, 2016
    Date of Patent: October 23, 2018
    Assignee: Siemens Aktiengesellschaft
    Inventors: Hartmut Walter, Jan Georgi
  • Patent number: 10014759
    Abstract: The earth's magnetic field has not been mined as a source of energy. With average field strength of 0.5×10?4 Tesla around the world it is easy to understand why. A disruptive technology is needed to mine the earth's magnetic field. Such a technology, graphene, is now at an early stage of development with excellent properties in the form of high conductivity, low resistivity sheets that are durable, light weight, and low cost. Multiple sheets of graphene provide a significant multiplier to earth's magnetic field yielding a feasible source of ecologically clean power. Graphene based EcoCharge units can be driven by electric motors putting graphene in motion to mine the earth's magnetic field.
    Type: Grant
    Filed: November 9, 2015
    Date of Patent: July 3, 2018
    Inventor: Dennis D McCrady
  • Patent number: 9997966
    Abstract: A stator fixing structure includes a tube and a fixing member. The tube has an outer surface, and both a stator set and the fixing member are fitted around the tube in a bottom-up sequence. The fixing member has a main body, which has a contact surface and an engaging unit. The engaging unit is circumferentially extended from the main body towards a center of the main body to form a plurality of free ends to tightly press against the outer surface of the tube. The contact surface is axially tightly in contact with the stator set to prevent the stator set from sliding.
    Type: Grant
    Filed: October 6, 2015
    Date of Patent: June 12, 2018
    Inventors: Sung-Wei Sun, Ren-Zhen Liu, Ze-Sen Ye
  • Patent number: 9989058
    Abstract: An electric vehicle vacuum pump assembly includes a combination, a separate acoustic barrier casing configured to encase the combination in each of a radially-spaced relationship and an axially-spaced relationship, and an annular gastight attenuation assembly radially arranged between the separate acoustic barrier casing on a first side and the combination on a second side. The combination comprises a pump unit and a drive motor comprising a rotor space, a stator space, a ventilation inlet, and a ventilation outlet. The rotor space comprises a motor rotor, and the stator space comprises a motor stator. The separate acoustic barrier casing comprises an intake connection and a discharge connection. The ventilation inlet and the ventilation outlet of the drive motor are configured to provide a forced ventilation past the annular gastight attenuation assembly and through at least one of the rotor space and the stator space.
    Type: Grant
    Filed: March 5, 2013
    Date of Patent: June 5, 2018
    Inventors: Nabil Salim Al-Hasan, Mathias Zill, Sebastian Cramer, Daniel Mueller
  • Patent number: 9976561
    Abstract: An electromechanical is provided which includes an electromagnetic rotor, a housing with an interior opening with a stop, a first bearing mount for supporting a first bearing rotatably mounting the rotor in the housing, a cover connected with the housing having a boss having an interior providing a second bearing mount supporting a second bearing rotatably mounting the rotor in the housing, a stator having a clearance fit within the housing interior opening, the stator being axially limited in a direction toward such first bearing mount by the housing stop, the stator having an axial clearance in a direction toward the cover boss, and an elastomeric spacer connected on an extreme end of the boss compliantly filling the axial clearance between the stator and the boss positioning the stator in an axial direction and restricting movement of the stator in an angular direction within the housing opening.
    Type: Grant
    Filed: April 11, 2016
    Date of Patent: May 22, 2018
    Assignee: BorgWarner Inc.
    Inventors: Frederick M. Huscher, Austin Hoke
  • Patent number: 9964148
    Abstract: A fluid dynamic bearing apparatus includes a stationary body, a rotating body, and a lubricating oil arranged therebetween. One of the stationary and rotating bodies includes a shaft. Another one of the stationary and rotating bodies includes a sleeve. The sleeve includes a communicating hole arranged to pass therethrough in an axial direction or obliquely with respect to the axial direction. A groove array is defined in the stationary body or the rotating body to cause the lubricating oil to flow into the communicating hole. An opening area of an inlet of the communicating hole may be arranged to be greater than a cross-sectional area of a tubular portion of the communicating hole to make it easier for the lubricating oil to flow into the communicating hole. Further, the shape of the inlet may be modified to make a loss coefficient at the inlet lower than a loss coefficient at an outlet. This contributes to preventing a leakage of the lubricating oil.
    Type: Grant
    Filed: November 6, 2015
    Date of Patent: May 8, 2018
    Assignee: Nidec Corporation
    Inventor: Mitsuo Kodama
  • Patent number: 9941771
    Abstract: A number of variations may include a product comprising: a rotor core comprising a body, wherein the body includes an inner surface and an outer surface, a first end cap which extends radially from a first end of the body and a second end cap which extends radially from a second end of the body, wherein the first end cap, the second end cap, and the outer surface define an annular cavity; at least one sleeve adjacent at least one of the first end cap or the second end cap; at least one magnet contained within the annular cavity; and at least one bearing operatively attached to the at least one sleeve.
    Type: Grant
    Filed: September 8, 2016
    Date of Patent: April 10, 2018
    Assignee: BorgWarner Inc.
    Inventors: Tyler Ransom Garrard, Frederick M. Huscher
  • Patent number: 9822787
    Abstract: A dynamic pressure bearing apparatus includes a bearing portion, a shaft, a radial dynamic pressure bearing portion, and a seal gap. An annular member arranged in an annular shape, fixed to the shaft axially between the seal portion and the attachment surface, and arranged to extend radially outward beyond an opening of the seal gap. A minute horizontal gap extending radially is defined between an upper surface of the bearing portion and a lower surface of the annular member. The seal gap is arranged to be in communication with an exterior space through the horizontal gap.
    Type: Grant
    Filed: February 24, 2016
    Date of Patent: November 21, 2017
    Inventors: Tomotsugu Sugiyama, Teiichi Hirono, Shinichiro Noda, Akihiro Kimura, Yoshiharu Ikegami, Tomohiro Hasegawa, Masafumi Fujimoto, Tomohiro Yoneda
  • Patent number: 9812914
    Abstract: A rotor according to the present invention includes a rotating axis rotating about an axial center of the rotating axis and a rotor component member including an inner circumferential surface on which an outer circumferential surface of the rotating axis fits. The outer circumferential surface of the rotating axis and the inner circumferential surface of the rotor component member include corresponding tapered surfaces each having a diameter that varies in taper along the axial center, the tapered surfaces being in full contact with each other while the outer circumferential surface of the rotating axis is press-fitted relative to the inner circumferential surface of the rotor component member, and at least one of the tapered surfaces has a corrugated surface structure storing a lubricant before the rotating axis is press-fitted relative to the rotor component member, while configured to wear away by press-fitting the rotating axis relative to the rotor component member to discharge the lubricant.
    Type: Grant
    Filed: November 12, 2015
    Date of Patent: November 7, 2017
    Inventors: Kenji Kawai, Shinobu Takano, Yohei Arimatsu
  • Patent number: 9806567
    Abstract: A waterproof motor includes: a recess (15) and a shaft tube (11) disposed upright on one side (105) of a base (1); a waterproof cover (2) covering the one side (105) of the base (1) and having a through hole 21 correspondingly enclosing the shaft tube (11) and a protruding portion (22) correspondingly engaging the recess (15), a first space (18) formed between the waterproof cover (2) and the one side (105) of the base (1); a first circuit board (3) disposed inside the first space (18) and having a plurality of sensors (31, 32); a housing (6) having an opening (69) and connected to the other side (106) of the base (1); an insulation plate (7) covering the opening of the housing (6), a second space (68) opposite to the first space (18) formed between the insulation plate (7) and the housing (6).
    Type: Grant
    Filed: May 21, 2015
    Date of Patent: October 31, 2017
    Inventors: Tsung-Yin Lee, Po-Hao Yu, Yi-Ching Chiu, Cheng-Chieh Liang
  • Patent number: 9803716
    Abstract: A torsional compensator for an internal combustion engine is provided. The torsional compensator comprises a rotor portion and a stator portion. The rotor portion is in driving engagement with an output of the internal combustion engine. The first rotor portion comprises at least one of first magnetic array and a first ferromagnetic array. The stator portion is disposed about the rotor portion. The stator portion is coupled to at least one of the internal combustion engine, a transmission, and a compensator housing. The stator portion comprises at least one of a second magnetic array and a second ferromagnetic array. In response to rotation of the rotor portion within the stator portion, a magnetic reluctance force is generated. The magnetic reluctance force applies a torque to the output of the internal combustion engine to dampen a torque ripple of the internal combustion engine.
    Type: Grant
    Filed: April 22, 2014
    Date of Patent: October 31, 2017
    Assignee: Dana Limited
    Inventors: Stijn Goossens, Mark R. J. Versteyhe
  • Patent number: 9799368
    Abstract: A fluid-dynamic bearing system comprising a stationary bearing component (12, 16, 18) and a bearing component (14, 14a) rotatable about a rotation axis, wherein, during operation of the bearing, the stationary and rotary components are separated from each other by a bearing gap (20) filled with a bearing fluid, wherein at least one fluid-dynamic radial bearing (22, 24) and at least one fluid-dynamic thrust bearing (28) or, alternatively, at least one conical fluid-dynamic bearing are arranged along the bearing gap (20), and wherein the bearing gap (20) comprises first and second open ends sealed by a first sealing gap (34) and a second sealing gap (36). The second sealing gap (36) exclusively extends normal to the rotation axis (40).
    Type: Grant
    Filed: October 5, 2015
    Date of Patent: October 24, 2017
    Assignee: MINEBEA CO., LTD.
    Inventors: Thomas Fuss, Tobias Kirchmeier, Oliver Vogt
  • Patent number: 9793778
    Abstract: A drive apparatus includes a motor having a drive part that rotates a first shaft member; a transmission part that transmits rotation of the first shaft member to a second shaft member which is different from the first shaft member; a first detection device provided at the first shaft member to detect information regarding rotation of the drive part; a second detection device provided at the second shaft member to detect information regarding rotation of the transmission part; and a prevention part that prevents movement of foreign substance toward a detection part which includes at least one of the first detection device and the second detection device.
    Type: Grant
    Filed: November 13, 2015
    Date of Patent: October 17, 2017
    Inventors: Kenji Omata, Takashi Nagase
  • Patent number: 9784073
    Abstract: A system and method is provided for converting a drilling rig between conventional hydrostatic pressure drilling and managed pressure drilling or underbalanced drilling using a docking station housing mounted on a marine riser or bell nipple. This docking station housing may be positioned above the surface of the water. When a removable rotating control device is remotely hydraulically latched with the docking station housing, the system and method allows for interactive lubrication and cooling of the rotating control device, as needed, along with a supply of fluid for use with active seals.
    Type: Grant
    Filed: January 26, 2015
    Date of Patent: October 10, 2017
    Assignee: Weatherford Technology Holdings, LLC
    Inventors: Thomas F. Bailey, Don M. Hannegan, James W. Chambers, Danny W. Wagoner
  • Patent number: 9768651
    Abstract: A motor includes a base, a bearing sleeve, a stator, a rotating member, a thrust bearing, and a hub. The bearing sleeve is arranged with the base and has an opening end and a sealing end opposite to each other. The stator connects with the base or the bearing sleeve. The rotating member is arranged inside the bearing sleeve and includes a shaft and a limiting portion adjacent to the sealing end. A first end of the shaft connects with the limiting portion, and a second end of the shaft has a coupling portion adjacent to the opening end. The thrust bearing is arranged between the shaft and an inner surface of the bearing sleeve, so that the limiting portion is between the thrust bearing and the sealing end. The hub connects with the coupling portion of the shaft and has a permanent magnet corresponding to the stator.
    Type: Grant
    Filed: November 3, 2014
    Date of Patent: September 19, 2017
    Assignee: Sunonwealth Electric Machine Industry Co., Ltd.
    Inventors: Alex Horng, Ko-Chien Wang
  • Patent number: 9748817
    Abstract: A gear motor assembly includes a motor and a gearbox connected together. The motor includes a stator and a rotor. The stator has a housing, magnets attached to the housing, and brushes. The rotor includes a shaft with a rotor core, a commutator, a sleeve, a bushing and a worm mounted thereon. The bushing is slidably located between the commutator and worm. The sleeve is located between the commutator and the bushing. The rotor is balanced with the worm fix to the shaft. The gearbox includes a casing having an opening, and a worm gear received in the casing. The brushes of the motor are mounted in the casing. The shaft has a first end that extends into the gearbox. The bushing is fixed in the casing via a bushing seat.
    Type: Grant
    Filed: April 17, 2015
    Date of Patent: August 29, 2017
    Inventors: Wei Xing Mao, Fan Ouyang, Xiao Liang Yue
  • Patent number: 9690256
    Abstract: The device for pivoting an arbor about a determined axis includes at least one magnetic bearing including a magnet which exerts a force of attraction on a pivot, made of magnetic material, of the arbor. Further, the bearing includes a magnetic flux centring structure arranged between the magnet and the pivot, and a support for the centring structure. This centring structure includes a peripheral portion and a central portion resiliently connected to the peripheral portion by at least one connecting element, the central portion being formed of a highly magnetically permeable material and having smaller dimensions than those of the magnet. The peripheral portion is rigidly force fitted to the support so that the central portion is centred on the pivot axis.
    Type: Grant
    Filed: June 8, 2016
    Date of Patent: June 27, 2017
    Assignee: Montres Breguet S.A.
    Inventors: Alain Zaugg, Benoit Legeret, Sylvain Marechal, Davide Sarchi
  • Patent number: 9644531
    Abstract: A hybrid drive having a clutch and a rotary electric machine disposed radially outwardly of the clutch so as to at least partially overlap the clutch in an axial direction as seen from a radially outer side, the rotary electric machine having a stator fixed to a case and a rotor coupled to the input member of the automatic transmission device. A clutch lubricating oil hole formed in a center shaft that extends at a center portion of the clutch and the rotary electric machine. A rotary electric machine lubricating oil hole formed in the center shaft. Separation means for separating lubricating oil such that lubricating oil from the clutch lubricating oil hole is led to the clutch and lubricating oil from the rotary electric machine lubricating oil hole is led to the rotary electric machine.
    Type: Grant
    Filed: February 8, 2013
    Date of Patent: May 9, 2017
    Assignee: AISIN AW CO., LTD.
    Inventors: Satoru Kasuya, Masashi Kito, Yuichi Seki, Hiroki Shintani
  • Patent number: 9641042
    Abstract: A fan motor including: a lower bracket through which a rotary shaft passes and having a lower bearing insertion space formed around the rotary shaft; an upper bracket through which the rotary shaft passes and having an upper bearing insertion space formed around the rotary shaft; a lower bearing forcedly pressed and fixed at a lower bearing seating portion formed above the lower bearing insertion space; an upper bearing forcedly pressed and fixed at an upper bearing seating portion formed above the upper bearing insertion space; a rotor rotatably joined to the rotary shaft inside the upper bracket; a stator located around the rotor; a lower felt cover having a lower bearing supporting portion for supporting the lower portion of the lower bearing; and an upper felt cover having an upper bearing supporting portion for supporting the lower portion of the upper bearing.
    Type: Grant
    Filed: January 20, 2014
    Date of Patent: May 2, 2017
    Assignee: NEW MOTECH CO., LTD.
    Inventors: Jeong Cheol Jang, Gyeong Su Park
  • Patent number: 9631673
    Abstract: A load bearing system with controlled movement of a stationary bearing race to distribute load and wear over the load bearing surface and increase bearing life. The system includes an inner race and an outer race which are predictably rotatable relative to one another about an axis. The system uses oil holes and other holes to place balls and spring loaded ball assemblies to facilitate movement as well as gears strategically placed in the stationary race with timer mechanisms to rotate the races relative to one another as desired.
    Type: Grant
    Filed: August 24, 2015
    Date of Patent: April 25, 2017
    Inventor: Samuel Messinger
  • Patent number: 9627945
    Abstract: Systems and methods for preventing electrical arcing in motors by placing an electrically conductive roller assembly between the stator and rotor of the motor. A rotor is mounted on a shaft, and this assembly is positioned within the bore of a stator. The roller assembly has a stationary portion that is secured to the stator. The roller assembly also has a movable portion on which a roller is mounted. The movable portion of the roller assembly is spring-loaded to urge the roller toward the shaft and thereby maintain contact between the roller and the shaft. When the shaft rotates within the bore, the roller rotates and rolls on the surface of the shaft, maintaining contact without rubbing against the shaft. An electrically conductive pathway is formed from the stator, through the roller assembly to the shaft and rotor thereby preventing an electrical potential from developing between the rotor and stator.
    Type: Grant
    Filed: September 27, 2013
    Date of Patent: April 18, 2017
    Assignee: Baker Hughes Incorporated
    Inventors: Stephen G. Biggs, Christopher G. Watson
  • Patent number: 9627803
    Abstract: A connector for an electronic device has a housing with a peripheral surface and guides defining first and second paths. The second path extends from a first location proximate the peripheral surface to a second location farther from the peripheral surface and closer to the first path. A magnetic contact assembly in the housing is magnetically movable along the first path between a first position for joining the connector in data communication with an adjacent connector, and a second position withdrawn from the peripheral surface. A magnet in the housing and is movable by attraction to an adjacent connector along the second path, to magnetically hold the connector to an adjacent connector. The guides are configured so that the magnet and the magnetic contact assembly magnetically bias one another inwardly along the first and second paths.
    Type: Grant
    Filed: January 18, 2016
    Date of Patent: April 18, 2017
    Inventors: Timothy Jing Yin Szeto, Jeremy Zhi-Qiao Chan
  • Patent number: 9601966
    Abstract: A motor includes a shaft supported by upper and lower bearings and rotatable about an axis; a rotor magnet fixed to the shaft; a stator arranged radially outside and opposite to the rotor magnet with a gap therebetween; an upper bracket holding the upper bearing; and a lower bracket holding the lower bearing. The upper bracket includes an upper cylindrical cover press fitted to a stator core from above, an upper bearing holding portion, and a top plate portion arranged to join the upper cylindrical cover and the upper bearing holding portion. The lower bracket includes a lower cylindrical cover press fitted to the stator core from below, a lower bearing holding portion, and a bottom plate portion arranged to join the lower cylindrical cover and the lower bearing holding portion. Each of the upper and lower brackets is fixed to the stator core through press fitting.
    Type: Grant
    Filed: May 1, 2014
    Date of Patent: March 21, 2017
    Inventors: Keizo Furukawa, Kazuya Kitaji
  • Patent number: 9562543
    Abstract: A fan vibration absorbing structure includes a bearing cup and a vibration absorbing element. The bearing cup includes a first section, a second section and a bearing holding hole. The first and the second section are connected end-to-end to enclose a receiving space therein, which communicates with the bearing holding hole. The vibration absorbing element is fitted between the first and the second section. With the fan vibration absorbing structure included in a fan, it is able to largely reduce the vibration occurred during fan operation.
    Type: Grant
    Filed: February 19, 2014
    Date of Patent: February 7, 2017
    Inventors: Bor-Haw Chang, Ping-Tsang Ho
  • Patent number: 9548638
    Abstract: An alignment stage including: a base plate; one or more X direction thrust generation guide mechanisms for generating thrust and performing guidance in the direction of a straight line X; a pair of lower plates disposed above the X direction thrust generation guide mechanisms; a pair of upper plates provided corresponding to the lower plates, respectively; a pair of rotatable bearings disposed between the lower plates and the upper plates; one or more Y direction thrust generation guide mechanisms for generating thrust and performing guidance in the direction of a straight line Y perpendicular to the straight line X; and a table plate disposed above the Y direction thrust generation guide mechanisms. With this configuration, it is possible for the alignment stage to be compact and easy to assemble.
    Type: Grant
    Filed: November 25, 2011
    Date of Patent: January 17, 2017
    Assignee: THK CO., LTD.
    Inventors: Takafumi Komatsu, Katsuya Fukushima
  • Patent number: 9494187
    Abstract: There is provided a fluid bearing including: a sleeve having a bearing hole; a shaft being inserted into the bearing hole to be rotatable with respect to the sleeve; a thrust portion that is fixed to the sleeve and covers one end portion of the bearing hole; and a liquid filled in a gap between the sleeve and the shaft. The bearing hole is configured to have a first portion having a first diameter; a second portion that is located at an end portion that is closer to the thrust portion than the first portion, the second portion having a second diameter that is substantially the dame with the first diameter; and a groove that is located at a position between the first portion and the second portion.
    Type: Grant
    Filed: February 24, 2015
    Date of Patent: November 15, 2016
    Assignee: Minebea Co., Ltd.
    Inventors: Katsunori Sakuragi, Michiharu Yamamoto, Shuji Akiyama
  • Patent number: 9488506
    Abstract: A resolver can have a stator installed in a housing simply, without requiring a special jig. In the resolver including a housing and a stator core fixed in the housing, the stator core is fixed to the inside of the housing by rotating relative to the housing.
    Type: Grant
    Filed: July 31, 2013
    Date of Patent: November 8, 2016
    Assignee: MINEBEA CO., LTD.
    Inventors: Takaaki Ochiai, Shumei Shirayanagi, Fujito Kawai
  • Patent number: 9470237
    Abstract: An electric fluid pump includes: a case including a recess portion into which a fluid flows; a rotor arranged in the recess portion; an axial member supporting the rotor; and a flange member insert-molded with the case and the axial member, secured to an end portion of the axial member, and buried in a bottom wall portion of the recess portion, wherein the flange member includes: a first flange portion; a reduced portion closer to an inner surface of the bottom wall portion than the first flange portion, and smaller than the first flange portion in a radial direction; and a second flange portion closer to the inner surface than the reduced portion, larger than the first flange portion in the radial direction, and partially exposed from the inner surface, and the inner surface is flat.
    Type: Grant
    Filed: January 8, 2014
    Date of Patent: October 18, 2016
    Assignee: SHINANO KENSHI CO., LTD.
    Inventors: Nobuchika Maruyama, Masayuki Kodani, Takeshi Miyasaka
  • Patent number: 9435348
    Abstract: A fan structure includes an upper cover, a fan frame body, a bearing cup, a bearing, a stator assembly, a hub and a shaft rod. The upper cover is mated with the fan frame body to together define a receiving space in which the bearing cup is disposed. The bearing cup has an open end and a closed end. The bearing is disposed in the bearing cup. The stator assembly is fitted around the bearing cup. The hub has multiple outward extending blades spaced from the upper cover by a first distance. The shaft rod has a connection end connected with the hub and a protruding end passing through the shaft hole and protruding from the bearing to abut against the closed end of the bearing cup and define a second distance. The first distance is smaller than the second distance to avoid deflection of the shaft rod.
    Type: Grant
    Filed: July 10, 2012
    Date of Patent: September 6, 2016
    Assignee: Asia Vital Components Co., Ltd.
    Inventor: Chun-Ming Wu