Patents Examined by Thomas Truong
  • Patent number: 10044236
    Abstract: A stator includes a stator core having slots and a stator coil comprised of three star-connected phase windings. In each of the slots, there are arranged in-slot portions of the phase windings in six layers. Each of the phase windings is comprised of five parallel-connected sub-windings. At each of the six layers, the in-slot portions of the sub-windings are arranged in a plurality of slot pairs; the slot pairs are circumferentially spaced from one another and each consist of two consecutive slots that are respectively identified as types A and B of the slots. Moreover, for each of the sub-windings, the in-slot portions of the sub-winding are evenly distributed to the two types A and B so that the number of the in-slot portions of the sub-winding arranged in the slots of the same type at each of the six layers is equal to 2.
    Type: Grant
    Filed: August 1, 2016
    Date of Patent: August 7, 2018
    Inventor: Akito Tamura
  • Patent number: 10036393
    Abstract: A rotor assembly (164) is provided for a switched reluctance motor (160) in which nonmetallic, nonconductive pins (5) pass through a stack (2) of magnetic laminate plates (3).
    Type: Grant
    Filed: May 12, 2014
    Date of Patent: July 31, 2018
    Assignee: BorgWarner Inc.
    Inventors: Augustine Cavagnaro, Jason W. Chekansky, Robert T. Race
  • Patent number: 10038347
    Abstract: An output terminal portion includes: an output terminal that includes: a shaft portion on which an external screw thread portion is formed; and a head portion; and an intermediary member that includes: a fastening seat on a first axial end of which a nut portion is formed integrally, and that is mounted so as to be fitted over the shaft portion such that a second axial end protrudes axially out of a bushing, the bushing is mounted to the intermediary member such that axial movement of the bushing is constrained, and an external output wire is mounted to a second axial end surface of the fastening seat in a state of contact by a fastening force from a fixing nut that is screwed onto the external screw thread portion such that the external output wire is fixed by fastening between the fixing nut and the fastening seat.
    Type: Grant
    Filed: October 31, 2013
    Date of Patent: July 31, 2018
    Assignee: Mitsubishi Electric Corporation
    Inventors: Kazuhiro Chisaka, Yoshihiro Shinosaka, Naoki Fujita
  • Patent number: 10033254
    Abstract: A cage rotor for an electrical machine includes a rotor laminated core having a groove, and a short-circuiting ring having a first material and cast onto an axial end of the rotor laminated core. Arranged in the groove is a bar which has a bar end. The bar end penetrates into the first material of the short-circuiting ring and has a plurality of notches to provide the bar end with a greater flexibility.
    Type: Grant
    Filed: October 17, 2013
    Date of Patent: July 24, 2018
    Inventors: Konrad Brandl, Maximilian Pfaller, Patryk Piotrowski, Andre Trepper, Christian Deeg, Siegfried Fichtner
  • Patent number: 10033258
    Abstract: A linear actuator that can achieve downsizing with a simple configuration, and can provide stable linear reciprocation while achieving improvement in assemblability and cost reduction. In the actuator, movable member 50 faces coil 21 in the winding axis CL direction of coil 21, and in addition, includes magnet 30 magnetized in the coil-winding axis CL direction in a unipolar fashion and output shaft 60 extending in the CL direction. Elastic body 70 is disposed along the coil-winding axis CL direction and configured to deform in that direction to supports movable member 50 such that movable member 50 can reciprocate along the coil-winding axis CL direction. Elastic body 70 is fixed to fixing body 40 and movable member 50 at both ends 71 and 72 in the coil-winding axis CL direction such that central air gap CG is formed between electromagnet 20 and magnet 30.
    Type: Grant
    Filed: September 29, 2015
    Date of Patent: July 24, 2018
    Inventors: Tatsunori Okawa, Yuki Takahashi, Chikara Sekiguchi, Shigenori Inamoto
  • Patent number: 10027215
    Abstract: A bistable electromagnetic actuator including: a tube; a stator arranged outside of the tube; and a rotor mounted in the tube so as to be displaceable along the longitudinal axis, the rotor at least partially comprises one or more of a paramagnetic and a ferromagnetic material and can be reversibly displaced between a first position and a second position by applying an electromagnetic field; wherein the stator comprises two ring permanent magnets, a coil for producing the electromagnetic field, and a back-iron element having two stator pole shoes; and the two ring permanent magnets comprise hard magnetic particles that are embedded in a plastic matrix.
    Type: Grant
    Filed: September 14, 2016
    Date of Patent: July 17, 2018
    Inventor: Martin Wieters
  • Patent number: 10020706
    Abstract: An electric machine (1) and to a method for producing the machine (1), including a housing (2) and a stator (3) accommodated therein, as well as at least one rotor (4) arranged radially inside the stator (3), a plastic body (7) that at least radially surrounds the outside of a soft-magnetic core (5) of the stator (3), and a cooling device (10) located between the stator (3) and the housing (2) is provided. In order to improve the cooling device (10), at least one recess (11) that conveys a cooling medium is created between the housing (2) and the stator (3) at least partially in the outer circumferential surface of the plastic body (7).
    Type: Grant
    Filed: January 16, 2014
    Date of Patent: July 10, 2018
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventors: Michael Kobes, Maria Holland, Achim Weber, Wolfgang Hill
  • Patent number: 10020696
    Abstract: Provided is a DC motor for a fuel pump for a vehicle. The DC motor for a fuel pump for a vehicle includes: a housing whose inside is hollow; a stator coupled to the inside of the housing and having a first permanent magnet whose N pole is disposed inwardly in a radial direction and a second permanent magnet whose S pole is disposed inwardly in a radial direction, the first permanent magnet and the second permanent magnet being spaced apart from each other to face each other; and a rotor disposed on an inside of the stator while being spaced apart from the stator, in which a first gap g1 between the first permanent magnet and the rotor is different from a second gap g2 between the second permanent magnet and the rotor, whereby a torque ripple that is a fluctuation width of a cogging torque is reduced.
    Type: Grant
    Filed: June 7, 2017
    Date of Patent: July 10, 2018
    Assignee: COAVIS
    Inventors: Gyu Sang Yu, Hyun Tae Lee, Wan Sung Pae
  • Patent number: 10020716
    Abstract: A transverse flux induction motor (“TFIM”) is described in accordance with the present invention. The TFIM may be a linear induction motor or a rotary induction motor. The TFIM includes a primary motor element and secondary motor element. The primary motor element includes a plurality of coils and at least one magnetic element. The plurality of coils are arranged to generate a control flux along a first direction when power is applied to at least one coil of the plurality of coils and the at least one magnetic element is arranged to generate a bias flux in a second direction that is substantially transverse to the first direction. The secondary motor element is moveable in the first direction, relative to the primary motor element, in response to the control flux.
    Type: Grant
    Filed: October 21, 2013
    Date of Patent: July 10, 2018
    Assignee: The Boeing Company
    Inventor: Robert J. Atmur
  • Patent number: 10016121
    Abstract: An ultrasound transducer element includes a plurality of electrostatic capacitance type ultrasound cells each having a lower electrode portion and a membrane including an upper electrode portion that are oriented and disposed via a cavity circular in plan view, and a thickness of the cavity monotonously decreases in a curved manner toward an outer circumferential portion from a center portion of the cavity.
    Type: Grant
    Filed: April 30, 2014
    Date of Patent: July 10, 2018
    Inventors: Kazuya Matsumoto, Kazuhisa Karaki, Mamoru Hasegawa, Katsuhiro Wakabayashi
  • Patent number: 10001165
    Abstract: The present invention relates to a thrust magnetic bearing for bias compensation, and more particularly, to a thrust magnetic bearing for bias compensation in which annular permanent magnets and electromagnets are disposed to face each other with respect to a levitated member and the permanent magnets are formed to be asymmetrical in lengths thereof in an axial direction to thus exert an attractive force for compensating for a bias by the difference in the lengths of the permanent magnets in the axial direction to compensate for the bias, and a current supply for bias magnetic flux is not required, saving energy.
    Type: Grant
    Filed: March 31, 2015
    Date of Patent: June 19, 2018
    Inventors: Cheol-hoon Park, Sang-Kyu Choi, Sang-Yong Ham
  • Patent number: 9999486
    Abstract: A spring mechanism for an electromagnetic drive unit converts or translates the movement and/or actuation of the electromagnet into a desired movement of the workpiece and enables simple and efficient tuning of the workpiece movement. The spring mechanism includes a housing, a spring connected to the housing, wherein at least a section of the spring is movable with respect to the housing, a drive shaft that includes a first end having a magnet and a second end for attachment to a workpiece, and an adjustable tuning element connecting the drive shaft to the movable portion of the spring. In one embodiment, the spring may be a flat spring, and the movable section may be a positioned between a pair of cutouts defined in the spring. In one embodiment, the adjustable tuning element is connected to the spring such that the adjustable tuning element places the movable portion of the spring under a degree of tension.
    Type: Grant
    Filed: March 18, 2015
    Date of Patent: June 19, 2018
    Assignee: Ranir, LLC
    Inventor: Bryan J. Dishon
  • Patent number: 9997980
    Abstract: A connector case of a receiving member includes a peripheral wall portion, in which a seal groove is formed. An inserting portion of a cover member projects from a cover main body toward the connector case and is inserted into the seal groove. Positioning portions project from the cover main body toward the connector case on a side of the inserting portion where a receiving space is placed. Furthermore, a distal end of an inner wall portion of the seal groove is placed on a top side of a distal end of an outer wall portion. A distal end of the positioning portion is placed on a base side of a distal end of the inserting portion.
    Type: Grant
    Filed: December 1, 2015
    Date of Patent: June 12, 2018
    Inventor: Takashi Tsuboi
  • Patent number: 9991768
    Abstract: A windscreen wiper motor with a housing is disclosed. In the housing, an armature shaft is arranged with a commutator which cooperates with carbon elements arranged in the region of a carbon holder plate, which elements are connected in an electrically conducting manner with voltage supply lines via electrical connections, preferably in the form of carbon strands. The voltage supply lines are connected with the electrical connections via a suppression device arranged at least substantially in a suppression housing, which is connected with the carbon holder plate, and the voltage supply lines are connected with at least one plug connection element, which is able to be connected to a plug connection region of the housing with mating plug connectors on the vehicle side.
    Type: Grant
    Filed: March 28, 2013
    Date of Patent: June 5, 2018
    Assignee: Valeo Wischersysteme GmbH
    Inventors: Bernd Schmid, Jörg Bürkle, Siegfried Stefani, Timo Rukwid
  • Patent number: 9991772
    Abstract: A rotor or stator hub for an electric machine includes a plurality of magnets arranged in a predetermined same pattern on a plurality of uniformly sized carrier plates. A plurality of permanent magnets are uniformly mounted on each of the carrier plates proximate a first edge of the carrier plate and spaced away from a second edge of the carrier plate. The carrier plates may be mounted on a rotor or stator hub in a predetermined configuration to create a plurality of axial array groups.
    Type: Grant
    Filed: May 7, 2016
    Date of Patent: June 5, 2018
    Inventor: Philip Totaro
  • Patent number: 9984781
    Abstract: A solid-state nuclear energy conversion system includes a crystalline insulator bombarded with radiation to create electron-hole pairs. A voltage source provides a potential bias across the crystalline insulator, causing electrons and holes to collect at opposing ends. A diode is incorporated in a circuit including the crystalline insulator, voltage source, and a load, inhibiting current flow from the voltage source to the load. Thus, a radiation-driven current flows to the load.
    Type: Grant
    Filed: July 29, 2016
    Date of Patent: May 29, 2018
    Assignee: The Curators of the University of Missouri
    Inventor: Mark A. Prelas
  • Patent number: 9985513
    Abstract: A magnetic transmission apparatus is disclosed, wherein the magnetic transmission apparatus includes a still part (4), a first rotating shaft (81), a second rotating shaft (82), a first rotating part (1), a second rotating part (2), and a third rotating part (3); the first rotating part (1) is rigidly connected with the first rotating shaft (81); the second rotating part (2), the third rotating part (3) are fixed on the second rotating shaft (82); the first rotating part (1), the second rotating part (2), and the third rotating part (3) are successively distributed along an axial direction; the still part (4) includes a magnetic regulation seat (41) and a magnetic regulation ring (42); the second rotating part (2) is located inside the magnetic regulation ring (42); the first rotating part (1) includes a first iron core (11), a first permanent magnet (12), and a first support part (811); the second rotating part (2) includes a second iron core (21), and a second permanent magnet (22); the third rotating part
    Type: Grant
    Filed: November 19, 2014
    Date of Patent: May 29, 2018
    Inventors: Linni Jian, Yujun Shi, Jin Wei
  • Patent number: 9985554
    Abstract: A generator includes a first member, a second member and a sliding mechanism. The first member includes a first electrode and a first dielectric layer affixed to the first electrode. The first dielectric layer includes a first material that has a first rating on a triboelectric series. The second member includes a second material that has a second rating on the triboelectric series that is different from the first rating. The second member includes a second electrode. The second member is disposed adjacent to the first dielectric layer so that the first dielectric layer is disposed between the first electrode and the second electrode. The sliding mechanism is configured to cause relative lateral movement between the first member and the second member, thereby generating an electric potential imbalance between the first electrode and the second electrode.
    Type: Grant
    Filed: February 25, 2014
    Date of Patent: May 29, 2018
    Assignee: Georgia Tech Research Corporation
    Inventors: Zhong Lin Wang, Guang Zhu, Sihong Wang, Long Lin
  • Patent number: 9976333
    Abstract: The invention relates to an adjusting drive (1) comprising an electric motor (2), an output shaft (3), a printed circuit board (4), a housing (6) and a connection interface (5), wherein the electric motor (2) is contacted with the printed circuit board (4) and is designed to drive the output shaft (3), wherein the housing (6) accommodates the printed circuit board (4), wherein the connection interface (5) comprises a direct plug connection with contacting pads (9) directly on the printed circuit board (4), and wherein the contacting pads (9) are designed for direct contact with a connector (7), wherein the connection interface (5) comprises a housing opening (8) in the housing (6) as access for the connector to the contacting pads (9), and wherein the printed circuit board (4) is dimensioned to be narrower than the housing opening (8) such that the printed circuit board (4) can be inserted through the housing opening (8) into the housing (6).
    Type: Grant
    Filed: January 3, 2011
    Date of Patent: May 22, 2018
    Assignee: Robert Bosch GmbH
    Inventor: Thomas Huck
  • Patent number: 9979246
    Abstract: An electric motor (100) features a external stator (28), an internal rotor (150) rotatably mounted within the external stator, the rotor having a lamination stack (200, 200?, 200?) composed of a plurality of rotor plates (201, 201?, 201?) in which are formed at least one first recess (614) and at least one second recess (630), a rotor magnet (224) being located in each first recess (614), the second recess (630) being associated with a jamming element (40) mounted therein. A clamping member (692,694) is arranged between the first recess (614) and the second recess (630). The clamping member and the second recess (630) are shaped so as to enable support of the jamming element (40) on the lamination stack, and to permit application of a force (F) on the clamping member in the direction of the rotor magnet. The second recess (630) serves as a through-opening for receiving a shaft (40), and the shaft (40) serves as the jamming element (40).
    Type: Grant
    Filed: March 19, 2014
    Date of Patent: May 22, 2018
    Assignee: EMB-PAPST ST. GEORGEN GmbH & CO. KG.
    Inventor: Sergej Helbling