Patents Examined by Leda Pham
  • Permanent-magnet synchronous motor of drainage pump
    Patent number: 8624451
    Abstract: A permanent-magnet synchronous motor of a draining pump is disclosed. It includes a permanent-magnet rotor for driving an impeller to rotate, a pump body for supporting the permanent-magnet rotor, a stator core and a stator coil. Among which, the stator coil is constructed with an enamelled aluminum wire winding which is coiled by an enamelled aluminum wire and sealed in a container. The invention applies the enamelled aluminum wire to the permanent-magnet synchronous motor of a draining pump. The winding of the stator coil and a welding part of its lead-out wire are sealed with plastic or epoxy resin which effectively isolate them from outside air, especially damp air. Therefore, the invention prevent the enamelled aluminum wire winding of the stator coil and the welding part of its lead-out wire from being oxidized in air and being corroded by the moisture, acid or alkaline matter in damp air.
    Type: Grant
    Filed: December 15, 2009
    Date of Patent: January 7, 2014
    Assignee: Jiangmen Idear Hanyu Electrical Joint-Stock Co., Ltd.
    Inventors: Huashan Shi, Yuyang Ma
  • Stator core for an electric machine
    Patent number: 8614530
    Abstract: A stator includes a body portion having an outer portion and an inner portion that defines an interior region, a plurality of stator teeth members extending from the inner portion into the interior region, and at least one continuous conductor wound around select ones of the plurality of stator teeth members to form at least one pole. Each of the plurality of stator teeth members including a number of wraps of the at least one continuous conductor. The at least one continuous conductor including a number of twists that is fewer than the number of wraps.
    Type: Grant
    Filed: December 17, 2009
    Date of Patent: December 24, 2013
    Assignee: Remy Technologies, L.L.C.
    Inventors: Bradley D. Chamberlin, Mark A. Stephenson, Larry A. Kubes
  • Rotary electric machine
    Patent number: 8610328
    Abstract: The concentrated winding coil is mounted onto a tooth such that a coil end portion is housed inside a concave space that is formed by the trunk portion and first and second guide portions at two axial ends of the tooth. Third cover portions of an insulating sheet that is disposed on two circumferential sides of the tooth are folded over so as to overlap with each other and extend so as to cover the coil end portion of the concentrated winding coil, and a second leader line that projects outward from a radially inner end portion of the concentrated winding coil is bent and led radially outward parallel to the coil end portion that is covered by the third cover portions.
    Type: Grant
    Filed: September 27, 2011
    Date of Patent: December 17, 2013
    Assignee: Mitsubishi Electric Corporation
    Inventors: Shinichiro Yoshida, Masaya Inoue, Shogo Okamoto
  • High-temperature thermosetting polymeric materials for ESP motor applications
    Patent number: 8604656
    Abstract: An electric submersible pump (ESP) motor includes a polymer or ceramic component made by curing a thermosetting polymer in situ in the ESP motor, wherein the thermosetting polymer is selected from the group consisting of cyanate ester, bismaleimide, polyimide, benzoxazine, a preceramic polymer, and a mixture thereof, or the thermosetting polymer is a hybrid polymer having less than 50% by weight of an epoxy component and a second component selected from the group consisting of cyanate ester, bismaleimide, polyimide, benzoxazine, a preceramic polymer, and a mixture thereof.
    Type: Grant
    Filed: December 17, 2009
    Date of Patent: December 10, 2013
    Assignee: Schlumberger Technology Corporation
    Inventors: William Goertzen, Gregory H. Manke, Aider Matarrita, Melissa Ver Meer
  • Permanent magnet rotor
    Patent number: 8593027
    Abstract: A permanent magnet rotor for a brushless electric motor of the kind with an internal stator, has a carrier structure of molded plastic that includes a disc portion fixed to a shaft. The disc portion has a periphery joined to a substantially cylindrical cage portion coaxial with the shaft. The cage portion accommodates a magnetic flux conducting structure forming an wall which is coaxial with the shaft, and a plurality of permanent magnets shaped as ring segments, disposed at angular intervals within and adjacent to the flux conducting structure. Each magnet has its circumferentially terminal faces parallel with each other or converging in the outward direction. The cage portion is overmolded onto the flux conducting structure and has a plurality of angularly spaced struts which are essentially parallel to the axis of the rotor and which protrude radially inwards.
    Type: Grant
    Filed: January 14, 2011
    Date of Patent: November 26, 2013
    Assignee: Gate S.R.L.
    Inventors: Luciano Marchitto, Nicola Re
  • Stator coil assembly
    Patent number: 8593023
    Abstract: There is provided a compact stator coil assembly that has heat radiation increased and a cooling performance improved. A stator coil assembly includes a first coil piece, a second coil piece, and an insulating member provided with a retaining portion that catches the first coil piece and the second coil piece so that those coil pieces form a predetermined coil pattern. A coil loop is formed by the first coil piece and the second coil piece. The stator coil assembly further includes a heat-transfer member having a heat-transfer portion insulated from the first coil piece and the second coil piece and embedded in the insulating member, and a slit formed in the heat-transfer member so as to cut off the pathway of an induced current that is to flow through the heat-transfer member.
    Type: Grant
    Filed: May 18, 2011
    Date of Patent: November 26, 2013
    Assignee: Honda Motor Co., Ltd.
    Inventors: Tomotaka Iki, Masaru Ozawa
  • Bearing assembly
    Patent number: 8569918
    Abstract: A bearing assembly for an electrical motor, including a shaft, a housing, and a main bearing between the shaft and the housing, the shaft being surrounded by a rigid sleeve for functioning as an auxiliary bearing in case of a breakdown of the main bearing and as a grease sealing under normal operation.
    Type: Grant
    Filed: September 26, 2011
    Date of Patent: October 29, 2013
    Assignee: ABB AB
    Inventors: Peter Isberg, Per-Olof Lindberg
  • Motor
    Patent number: 8564164
    Abstract: A motor includes a rotating member including a first magnet, and a fixed member supporting the rotating member and including a second magnet configuring a magnetic bearing part together with the first magnet. A gap between the first and second magnets is larger than at least one of a contact prevention gap between the rotating member and the fixed member and a clearance between a shaft and a sleeve supporting the shaft.
    Type: Grant
    Filed: September 21, 2011
    Date of Patent: October 22, 2013
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Ju Ho Kim, Shin Young Cheong, Ki Suk Woo
  • Actuator for operating a sliding curtain
    Patent number: 8564162
    Abstract: This electro-mechanical actuator is used to operate a curtain mounted to slide along an axis. It comprises a motor (24), a power supply unit (22) for powering the motor and a box (20), the motor (24) and the power supply unit (22) being received in a first housing (L1) that is internal to the box (20). The box (20) forms at least one second internal housing (L2, L?2), separated from the first internal housing by a wall (35, 43) of the box, and in which an electrical or electronic component (28, 50) of the actuator is received that is distinct from the motor (24) and from the power supply unit (22). A removable cover (33, 41) isolates the or each second housing (L2, L?2) from the outside of the box (20).
    Type: Grant
    Filed: November 13, 2009
    Date of Patent: October 22, 2013
    Assignee: Somfy SAS
    Inventors: Olivier Charleux, Scot Cochran, Jean-Michel Perache, Rich Scharf
  • Insulation assembly for electric machine
    Patent number: 8558427
    Abstract: An insulation assembly is provided that includes a generally annularly-shaped main body and at least two spaced-apart fingers extending radially inwards from the main body. The spaced-apart fingers define a gap between the fingers. A slot liner may be inserted within the gap. The main body may include a plurality of circumferentially distributed segments. Each one of the plurality of segments may be operatively connected to another of the plurality of segments to form the continuous main body. The slot liner may be formed as a single extruded piece defining a plurality of cavities. A plurality of conductors (extendable from the stator assembly) may be axially inserted within a respective one of the plurality of cavities. The insulation assembly electrically isolates the conductors in the electric motor from the stator stack and from other conductors.
    Type: Grant
    Filed: January 31, 2011
    Date of Patent: October 15, 2013
    Assignee: GM Global Technology Operations LLC
    Inventors: Frederick W. Rhoads, David F. Titmuss, Harold Parish, John D. Campbell
  • Cooling unit for nuclear reactor control rod driving apparatus
    Patent number: 8558417
    Abstract: A cooling unit cooling a coil assembly that generates electromagnetic force for driving a nuclear reactor control rod, and including a coil surrounding a driving shaft of the nuclear reactor control rod so as to generate the electromagnetic force; a coil housing surrounding the coil so as to enclose the coil; a cooling shroud-shell forming a cooling flow path between the cooling shroud-shell and the coil housing, whereby a cooling fluid for cooling heat that is generated in the coil passes through the cooling flow path; and a plurality of cooling fins disposed on the cooling flow path in a radial direction so as to allow heat to be effectively exchanged between the coil and the cooling fluid that flows through the cooling flow path.
    Type: Grant
    Filed: October 29, 2010
    Date of Patent: October 15, 2013
    Assignee: KEPCO Engineering & Construction Company
    Inventors: Myoung Goo Lee, Hyun Min Kim, Jin Seok Park, In Yong Kim
  • Combustion engine with feedback gear/rotary pump input
    Patent number: 8555611
    Abstract: A combustion engine, which is highly efficient, noiseless and lightweight, includes a combustion chamber without pistons. The combusted and expanded air exiting the combustion chamber flows into a displacement pump, such as a gear pump or radial vane pump. The displacement pump drives the load, and, in addition, another smaller displacement pump, which pressurizes fresh air and introduces same, via a feedback loop, into the combustion chamber. Gas or other burnable fuels are introduced in the combustion chamber, so that a continuous fuel burning will occur, after being ignited. The ratio of bigger to the smaller pump is influenced by the percentage of expansion of the air in the combustion chamber.
    Type: Grant
    Filed: December 24, 2008
    Date of Patent: October 15, 2013
    Inventor: Arthur Vanmoor
  • Voice coil motor
    Patent number: 8558419
    Abstract: Disclosed is a voice coil motor, the motor including a mover having a bobbin equipped with a lens and a coil block secured to an outer circumference of the bobbin; a stator having a magnet that is disposed in such a way as to face the coil block; elastic members coupled to a lower end of the bobbin and connected to both ends of the coil block; a base supporting the elastic members and the stator; and a cover can covering the mover, the stator and the base, with an opening being formed in the cover can to expose the lens therethrough, wherein each of the elastic members includes a terminal portion that extends between the cover can and a side surface of the base, the terminal portion including a short-circuit prevention portion so as to prevent a short-circuit between the terminal portion and the cover can.
    Type: Grant
    Filed: July 18, 2011
    Date of Patent: October 15, 2013
    Assignee: LG Innoteck Co., Ltd.
    Inventor: Sanghee Lee
  • Dynamo-electric machine
    Patent number: 8552605
    Abstract: Engaging protrusions of a lower end housing are axially snap-fitted into through holes, respectively, of a yoke housing to couple therebetween. Each of spacers is circumferentially placed between and is press-fitted between corresponding adjacent two of permanent magnets fixed to an inner peripheral surface of the yoke housing. Each spacer axially contacts a corresponding contact part of the end housing. A lower ball bearing and an upper ball bearing are supported by the lower end housing and an upper end housing, respectively, to rotatably support a shaft. A wave washer is axially positioned between the lower ball bearing and the lower end housing to exert an urging force between the lower end housing and the upper end housing through the shaft.
    Type: Grant
    Filed: December 29, 2010
    Date of Patent: October 8, 2013
    Assignee: ASMO Co., Ltd.
    Inventors: Yoshimichi Sahara, Masakatsu Uchida
  • Molded motor
    Patent number: 8552602
    Abstract: A molded motor including a stator including a housing formed by integrally molding an armature winding and a printed circuit board with resin containing a fibrous reinforcing material and filler; a magnet rotor rotatably disposed to face the stator; and a plurality of lead wires led out to outside. The printed circuit board is provided with a plurality of lands connecting the lead wires by soldering, and a round hole between the plurality of lands filled with the resin, and the reinforcing material is oriented in a board thickness direction of the printed circuit board.
    Type: Grant
    Filed: October 26, 2009
    Date of Patent: October 8, 2013
    Assignee: Panasonic Corporation
    Inventor: Masayuki Takada
  • Alternator and corresponding electric system
    Patent number: 8552610
    Abstract: An alternator including a rotatably-assembled permanent magnet, the magnetization direction of the magnet being orthogonal to the rotation axis, and a winding with no iron core surrounding the magnet and having each turn in a plane substantially parallel to a plane containing the rotation axis, the winding extending across a dihedral angle from the rotation axis smaller than 75 degrees and, radially, over a distance ranging between one quarter and half of the magnet diameter.
    Type: Grant
    Filed: December 7, 2010
    Date of Patent: October 8, 2013
    Assignee: Commissariat a l'Energie Atomique et aux Energies Alternatives
    Inventor: Marc Beranger
  • Modular magneto mechanical device
    Patent number: 8552608
    Abstract: An electromechanical device has a rotor, a stator, and a module that at least partially houses the rotor. During normal operation of the electromechanical device, the stator is positioned external to and separate from the module.
    Type: Grant
    Filed: August 31, 2007
    Date of Patent: October 8, 2013
    Assignee: Smartin Technologies LLC
    Inventor: Martin Sentmanat
  • Electric motors having EMI reducing circuits and methods therefor
    Patent number: 8552615
    Abstract: An electric motor having a circuit for reducing electromagnetic interference (EMI) includes a field stack such as a stator, an armature including a shaft, a commutator mounted on the shaft, and an armature core electrically connected to the commutator, whereby the armature core is rotatably mounted within the field stack. The electric motor includes a brush assembly adapted to deliver electrical power to the commutator. The circuit includes a delta capacitor network and a conductive lead electrically interconnecting the delta capacitor network and the brush assembly. In one embodiment, the circuit includes motor field windings or coils, and a power source electrically interconnectable with the delta capacitor network and the motor field windings. In one embodiment, the motor is a universal motor.
    Type: Grant
    Filed: June 17, 2010
    Date of Patent: October 8, 2013
    Assignee: Black & Decker Inc.
    Inventors: Jiangang Zhao, Paik Gu, Zhanghe Song, Shengjian Liu
  • Actuator
    Patent number: 8546981
    Abstract: An actuator is provided, which includes a main shaft having a first shaft portion for generating a magnetic field in a linear direction and a second shaft portion for generating a magnetic field in a rotational direction, and a coil wound around an outer peripheral surface of the main shaft. The actuator performs both a rotational driving function and a straight driving function via a single unit to improve the positional accuracy and provide spatial efficiency, thereby improving the merchantable quality of the actuator.
    Type: Grant
    Filed: June 29, 2011
    Date of Patent: October 1, 2013
    Assignee: Hyundai Motor Company
    Inventor: Kyung Min Lee
  • Nut securing arrangement for electrical generator
    Patent number: 8541916
    Abstract: A system for securing a nut (24) used to compress a compliant seal (23) surrounding a radial conductor lead (21) of an electric generator (10). The generator has a rotor (11) with the radial conductor lead arranged in a radial lead bore (20) of the rotor and the seal coaxially arranged surrounding the radial lead. A receiving pocket (15) is arranged in a body of the rotor adjacent to the radial lead bore. The nut is arranged coaxially with the radial conductor lead, the nut including a seal contacting surface (35) and a ligament (26) arranged opposite the seal contacting surface, wherein a portion of the ligament is deformed into the receiving pocket to lock the nut against rotation, thereby maintaining a desired degree of compression on the seal.
    Type: Grant
    Filed: December 17, 2009
    Date of Patent: September 24, 2013
    Assignee: Siemens Energy, Inc.
    Inventors: Randy E. Whitener, Stephen T. Soto, Neil R. Smith