Plural Units Or Plural Paths Patents (Class 310/59)
  • Patent number: 10985624
    Abstract: A rotor for an electric motor has a shaft and a rotor laminated core connected to the shaft. A coolant duct is formed in the rotor in order to enable coolant to flow through the coolant duct. The coolant duct has a first portion, which runs at least in regions in the rotor laminated core. The rotor laminated core has a sleeve on the outer circumferential surface in order to avoid coolant escaping at the outer circumferential surface of the rotor laminated core. In a method for producing a rotor, a material having glass fibers or carbon fibers and a resin are applied to the rotor laminated core, and the resin is subsequently cured in order to produce the sleeve.
    Type: Grant
    Filed: November 1, 2018
    Date of Patent: April 20, 2021
    Inventors: Philipp Berendes, Bernhard Wiedemann, Stefan Oechslen, Jan David Schmitz-Hübsch
  • Patent number: 10938280
    Abstract: An electric motor includes: a stator; a shaft; a rotor mounted on the shaft, the rotor having an end ring that is concentric with the shaft; and a flux shield around the shaft inside the end ring.
    Type: Grant
    Filed: November 1, 2013
    Date of Patent: March 2, 2021
    Assignee: Tesla, Inc.
    Inventors: Konstantinos Laskaris, Andrew D. Baglino, Chad Furey, David F. Nelson
  • Patent number: 10931173
    Abstract: A combined cooling and abrasion particles removal system and method for providing cooling and removing abrasion particles in a contact region between a brush and a slip ring of an electromechanical machine, the system comprising a passage for accommodating the brush and having a front opening adapted to face the slip ring, at least one supply tube with an outlet for blowing a gaseous medium at least partially into a direction towards a free space adjacent to the front opening, and at least one suction tube with an inlet opening for sucking off the gaseous medium and the abrasion particles from the free space. In order to pick up abrasion particles and provide sufficient cooling, the free space merges with a vortex chamber for generating a vortex of the gaseous medium carrying the abrasion particles in operation of the system.
    Type: Grant
    Filed: September 22, 2017
    Date of Patent: February 23, 2021
    Assignee: GE Renewable Technologies
    Inventors: Stefan Baumeister, Sebastien Bruna, Jerome Hamburger, Thierry Auzolle
  • Patent number: 10903707
    Abstract: A synchronous reluctance machine includes a stator and a rotor spaced apart from the stator by an air gap. The rotor is rotatably mounted about an axis and has laminations arranged axially behind one another. Each lamination has an anisotropic magnetic structure formed by flux blocking sections and flux conducting sections, wherein the flux blocking sections and the flux conducting sections form poles of the rotor. The flux blocking sections form axial channels, wherein in at least some flux blocking sections permanent magnets are provided that do not completely occupy the respective flux blocking section and thus allow axial airflow in all flux blocking sections. The laminated core of the rotor is axially subdivided into at least two component laminated cores, with radial cooling gaps formed between the poles in the region of the q axis as viewed in circumferential direction and between the component laminated cores as viewed axially.
    Type: Grant
    Filed: March 1, 2018
    Date of Patent: January 26, 2021
    Inventor: Roland Zeichfüssl
  • Patent number: 10888965
    Abstract: A constant temperature water supply apparatus includes a temperature adjustment unit that circulates cooling water and adjusts the temperature of a spindle unit of a processing apparatus and a processing water temperature adjustment unit. The temperature adjustment unit includes a pump that sends the cooling water to the spindle unit, a cooling water cooling unit, a first pipe that connects the pump and the cooling unit, a second pipe that connects the cooling unit and the spindle unit, and a third pipe that connects the spindle unit and the pump. The processing water temperature adjustment unit includes a processing water pipe that has one end connected to a water source and supplies processing water from the other end side to a processing tool and a heat exchange unit on the processing water pipe.
    Type: Grant
    Filed: February 25, 2019
    Date of Patent: January 12, 2021
    Inventors: Satoshi Arai, Jun Saito
  • Patent number: 10892667
    Abstract: A motor includes a rotor that has a motor shaft disposed along a central axis extending in an axial direction; a stator facing the rotor with a gap interposed therebetween in a radial direction; a motor driving inverter unit supplying electric power from a battery to the stator; a charger having a charger inverter unit that charges the battery; and a housing accommodating the stator, the motor driving inverter unit and the charger The housing has a cooling flow path through which a coolant flows, a stator accommodation unit accommodating the stator, an inverter accommodation unit positioned outside the stator accommodation unit in the radial direction, a charger accommodation unit positioned outside the stator accommodation unit in the radial direction, and an intermediate partitioning wall partitioning the inverter accommodation unit and the charger accommodation unit The cooling flow path is disposed in the intermediate partitioning wall.
    Type: Grant
    Filed: March 19, 2019
    Date of Patent: January 12, 2021
    Inventor: Yoshihisa Okuhata
  • Patent number: 10886819
    Abstract: According to various aspects disclosed herein, exemplary embodiments of an electric machine with direct winding heat exchange is disclosed, including a stator, a rotor, at least one coil positioned on a stator tooth of the stator, with the coil comprising one or more turns of a conductor and an insulator, where the insulator and coil form a monolithic body having at least one facet at an angle that corresponds to the geometry of a stator slot of the stator.
    Type: Grant
    Filed: March 13, 2018
    Date of Patent: January 5, 2021
    Inventors: J. Rhett Mayor, S. Andrew Semidey
  • Patent number: 10833553
    Abstract: An electric motor including a structure that prevents intrusion of a foreign substance into the electric motor, and a machine tool including the electric motor. A hollow tube that fluidly connects an inner portion of a terminal box and an outer surface of a front flange is provided, and a through hole extending from the outer surface to a front space is formed. The inner portion of the terminal box and the front space communicate with each other through a flow path that is fluidly cut off from an interior space of the machine or other such machine tool and air in the terminal box automatically flows into the front space through the flow path in accordance with rotation of a rotor as described above. Also, the terminal box is fluidly connected with an amplifier provided outside of the machine through an air passage.
    Type: Grant
    Filed: November 15, 2018
    Date of Patent: November 10, 2020
    Inventor: Yasuhito Mukai
  • Patent number: 10788050
    Abstract: An electric compressor for compressing a gas, particularly configured for use in a motor vehicle, comprising a control unit, an electric motor controlled by the control unit, a compressor wheel driven by the electric motor, and a housing at least partially surrounding the electric motor. The housing is produced by an encapsulation method such that a cooling structure is formed integrally with the housing, in particular within the housing, for ensuring cooling of the electric motor and of the control unit. A method for producing the electric compressor of this kind is also disclosed.
    Type: Grant
    Filed: July 20, 2016
    Date of Patent: September 29, 2020
    Inventors: Wolfgang Back, Michael Hofer, Nicolai Schmolzer, Gernot Steinmair, Gerd Schlager
  • Patent number: 10727724
    Abstract: An electric motor generator system has a hollow rotatable shaft, a coil spar, and a plurality of magnet portions. The hollow rotatable shaft has a central longitudinal axis. The coil spar comprises one or more coil assemblies and is positioned concentrically within the hollow rotatable shaft. Each of the magnet portions is shaped to conform to a radially inwardly facing surface of the shaft. Each of the plurality of magnet portions abuts conformally against the radially inwardly facing surface of the shaft between the radially inwardly facing surface and the or each coil assembly.
    Type: Grant
    Filed: September 17, 2018
    Date of Patent: July 28, 2020
    Inventors: Giles E. Harvey, Astrid Rokke
  • Patent number: 10727714
    Abstract: A machine component of an electric machine includes a metal base body and a sealing element, arranged on the base body, for thermally decoupling the machine component and a unit abutting it. The base body is manufactured by pressure die-casting. The sealing element is made from plastic and is connected to the base body in a form-fit manner during the pressure die-casting of the base body.
    Type: Grant
    Filed: March 29, 2016
    Date of Patent: July 28, 2020
    Assignee: Siemens Aktiengesellschaft
    Inventors: Hubertus Bähr, Rainer Eckert, Martin Holzheimer, Benjamin Volkmuth
  • Patent number: 10707726
    Abstract: A cooling structure is provided for a dynamo-electric machine. The cooling structure has a refrigerant supply path for introducing a refrigerant into a rotor, and refrigerant outlets that are opened to the refrigerant supply path so that the refrigerant will be splashed onto the coil ends of a stator as the rotor rotates. Blocking wall members are provided in refrigerant splash paths between the refrigerant outlets and the coil ends for blocking a portion of the refrigerant, which splashes from the refrigerant outlets when the rotor rotates. The rate at which the blocking wall members shield the coil ends against the refrigerant is low when the rotor rotates at a low speed and is high when the rotor rotates at a high speed.
    Type: Grant
    Filed: June 8, 2016
    Date of Patent: July 7, 2020
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Tomoyuki Manabe, Takenari Okuyama
  • Patent number: 10630147
    Abstract: An electric machine, in particular for an electric vehicle. The machine includes a rotor which can be rotated with respect to a stator and has at least one rotor shaft. The machine includes a duct system for cooling the machine, through which duct system a coolant can flow. The duct system runs at least in sections within the rotor shaft. Here, the duct system includes a cooling duct. The cooling duct is configured so as to run conically at least in sections in the longitudinal direction of the rotor shaft, such that the coolant can be conveyed in the direction of an increasing duct diameter by way of a rotational movement of the rotor shaft.
    Type: Grant
    Filed: May 23, 2018
    Date of Patent: April 21, 2020
    Assignee: Dr. Ing. h.c. F. Porsche Aktiengesellschaft
    Inventors: Daniel Knoblauch, Sebastian Wachter
  • Patent number: 10566863
    Abstract: A rotor core in which magnets are embedded is formed by stacking a plurality of steel sheets. Each steel sheet which has a disk shape has: six magnet insertion holes formed so as to allow permanent magnets to be inserted therein as a whole; circumferential-direction bridge portions connecting, in the circumferential direction, radially-outer-side steel sheets each formed at the peripheral part of the steel sheet, between the magnet insertion holes; and radial-direction bridge portions formed between the magnet insertion holes. The circumferential-direction bridge portions and the radial-direction bridge portions have coined portions having decreased sheet thicknesses and protruding in an arc shape in the sheet-thickness direction. The coined portions having decreased sheet thicknesses suppress short-circuit of a magnetic flux between magnetic poles, and formation of the arc shapes absorbs extension of these portions caused by a coining work, to suppress deformation of the steel sheet.
    Type: Grant
    Filed: October 3, 2016
    Date of Patent: February 18, 2020
    Inventors: Kazuhiro Shono, Yuki Tamura, Ryohei Uno, Koji Masumoto
  • Patent number: 10468946
    Abstract: A cooling system of an electric motor with a fan, including a fan configured to generate fluid flow for cooling the electric motor, and a duct forming a flow channel for guiding a fluid flow generated by the fan, includes at least one hole provided in the duct.
    Type: Grant
    Filed: December 2, 2015
    Date of Patent: November 5, 2019
    Inventors: Masahiro Murota, Toshifumi Muramatsu
  • Patent number: 10432056
    Abstract: A vehicle electric machine may include a stator having end windings extending axially from the stator. A rotor may be disposed within the stator and including an endcap having an outer face defining outlets and a furrowed outer periphery with an edge configured to distribute coolant released from the outlets onto the outer face to different axial locations of the end windings during rotation. The furrowed outer periphery may taper toward an in inner flat portion. The outlets may be contained within the inner flat portion. The furrowed outer periphery may be symmetric about any axis perpendicular to and passing through an axis of rotation of the rotor. The outer face may further define channels extending from the outlets to the edge. The channels may be recessed in the outer face. The furrowed outer periphery may define concentric circumferential ridges.
    Type: Grant
    Filed: April 26, 2016
    Date of Patent: October 1, 2019
    Assignee: Ford Global Technologies, LLC
    Inventors: Michael W. Degner, Edward Chan-Jiun Jih, Tienli Wang, Prasad Dev Hanumalagutti
  • Patent number: 10432050
    Abstract: A motor rotor includes a rotor core having a plurality of magnet insertion holes in each of which a permanent magnet is inserted, a flow path formed on a radially inner side of the plurality of magnet insertion holes to allow a fluid to flow through, and a shaft insertion hole in which a rotary shaft is inserted, and the permanent magnet inserted in each of the plurality of magnet insertion holes of the rotor core. The rotor core has an inlet opening and an outlet opening each opened in a corresponding one of end faces of the rotor core in an axial direction, and a communication hole circumferentially extending inside the rotor core and communicating with the inlet opening and the outlet opening.
    Type: Grant
    Filed: March 9, 2015
    Date of Patent: October 1, 2019
    Assignee: Mitsubishi Electric Corporation
    Inventor: Kazuya Kumagai
  • Patent number: 10320252
    Abstract: The rotor of the rotary electric machine according to the present invention includes: a cylindrical rotor core; magnets that are respectively housed in a plurality of magnet housing apertures that are formed circumferentially so as to pass axially through an outer circumferential side of the rotor core; and a rotor boss that includes: a cylindrical rotor ring that holds the rotor core; an annular mounting portion that is linked to the crankshaft so as to be disposed coaxially at a first axial end inside the rotor ring; and a linking plate that links the rotor ring and the mounting portion, and the linking plate is formed so as to have a curved shape that is convex toward a second axial end of the rotor boss, and has a thickness that reduces continuously from a radially inner side toward a radially outer side.
    Type: Grant
    Filed: November 10, 2014
    Date of Patent: June 11, 2019
    Assignee: Mitsubishi Electric Corporation
    Inventors: Ryuichi Shimomura, Tomoki Sagayama
  • Patent number: 10308738
    Abstract: The present disclosure relates to a plant for performing polymerization, such as the polymerization of ethylene, having a recycle connection with two or more cooling channels arranged in parallel, a process for polymerization and downstream processes, and a plant for polymerization, comprising the following plant components in fluid communication: a) A reactor with an inlet side and an outlet side; b) A recycle connection positioned in fluid communication between the outlet side of the reactor and the inlet side of the reactor; wherein the recycle connection comprises two or more cooling channels arranged in parallel.
    Type: Grant
    Filed: June 14, 2016
    Date of Patent: June 4, 2019
    Assignee: Basell Polyolefine GmbH
    Inventors: Christoph Wolf, Andre-Armand Finette, Andrei Gonioukh, Dieter Littmann, Thomas Herrmann, Georg Groos
  • Patent number: 10288078
    Abstract: An axial flow fan having an axis of rotation includes a central hub including a base wall and a lateral wall which projects from the base wall to form a cup-shaped structure, a plurality of blades each fixed to the central hub and including a leading edge and a trailing edge, a plurality of extractors of a fluid which are associated with the base wall for conveying air from the inside of the cup-shaped structure to the outside of the cup-shaped structure through the base wall.
    Type: Grant
    Filed: May 26, 2014
    Date of Patent: May 14, 2019
    Assignee: SPAL AUTOMOTIVE S.R.L.
    Inventor: Pietro De Filippis
  • Patent number: 10272533
    Abstract: A machine tool for cutting a workpiece with a cutting tool, includes a spindle motor that generates heat, a spindle head for supporting the spindle motor, and a heat insulating sheet disposed between the spindle motor and the spindle head. The area of a part of the heat insulating sheet that is in contact with a part of the spindle head having a high heat capacity is small so as to increase the amount of heat transferring from the spindle motor to the part of the spindle head having a high heat capacity, and thereby make the temperature distribution of the spindle head uniform.
    Type: Grant
    Filed: November 10, 2017
    Date of Patent: April 30, 2019
    Inventor: Naoki Satou
  • Patent number: 10236737
    Abstract: A synchronous generator, in particular a multipole synchronous annular generator of a direct-drive wind turbine, for generating electricity, with a rotor and a stator, wherein the stator has multiple grooves in which a stator winding is arranged, wherein the stator winding releases heat energy as a result of the generation of power, and wherein a cooling body for absorbing and dissipating released heat energy is arranged in one groove, multiple grooves or all of the grooves.
    Type: Grant
    Filed: July 20, 2015
    Date of Patent: March 19, 2019
    Assignee: Wobben Properties GmbH
    Inventors: Jochen Röer, Falk Middelstädt
  • Patent number: 10199903
    Abstract: A device for deflecting at least a portion of a cooling fluid flowing axially in an intermediate space is arranged between a rotor and a stator of a rotating electrical machine, in particular of a turbogenerator, wherein at least one blade can be arranged on a prespecifiable section of an outer face of the rotor and in the intermediate space, which blade is designed and can be arranged in such a way that a portion of the cooling fluid flowing in the intermediate space can be radially deflected in the direction of the stator by said blade.
    Type: Grant
    Filed: September 11, 2014
    Date of Patent: February 5, 2019
    Assignee: Siemens Aktiengesellschaft
    Inventors: Esteban Grau Sorarrain, Christian Jäkel, Mario Koebe, Matthias Kowalski, Christoph Lehmann, Andrey Mashkin, Olga Plotnikova, Carolin Schild
  • Patent number: 10177630
    Abstract: An induction motor may include a housing, a stator, a rotor, and/or cooling fins on an outside surface of the housing. The rotor may include inner air ducts configured to allow passage of airflow therethrough. The motor may include outer air ducts in fluid communication with the inner air ducts to form an air-circulation circuit. The outer air ducts may be arranged radially outside the cooling fins.
    Type: Grant
    Filed: March 19, 2015
    Date of Patent: January 8, 2019
    Assignee: Nidec ASI S.p.A.
    Inventors: Fabio Luise, Stefano Pieri, Maurizio Scalabrin
  • Patent number: 10138772
    Abstract: Systems and methods are described for reducing friction within a transmission and an internal combustion engine including a PCV system. A gaseous fuel source is fluidly coupled to the transmission via a flow control valve and the transmission, in turn, is fluidly coupled to an air inflow line of the PCV system. The flow control valve is configured to control a flow of gaseous fuel into the transmission and there on into the PCV system and crankcase.
    Type: Grant
    Filed: February 3, 2014
    Date of Patent: November 27, 2018
    Assignee: Ford Global Technologies, LLC
    Inventor: David Karl Bidner
  • Patent number: 10116188
    Abstract: An electric machine having a stator and a rotor arranged on an axis of rotation and a first fan, which extends in the radial direction on one section of the axis of rotation and delivers a coolant flow into the electric machine during operation. The electric machine further includes a fan directing element, which interacts with the first fan and deflects at least a proportion of the coolant flow. Variable and demand-based cooling of the electric machine can be achieved by the fan directing element, which can in particular be adjustable.
    Type: Grant
    Filed: September 12, 2014
    Date of Patent: October 30, 2018
    Assignee: Siemens Aktiengesellschaft
    Inventors: Esteban Grau Sorarrain, Christian Jäkel, Mario Koebe, Matthias Kowalski, Christoph Lehmann, Andrey Mashkin, Olga Plotnikova, Carolin Schild
  • Patent number: 10103604
    Abstract: An electric machine assembly, having a first machine providing an alternating current output and a second machine receiving a direct current input, and a rectifier assembly placed within a rotating shaft of the electric machine assembly to convert the AC output of the electric machine assembly to the DC input prior to transmission of the electricity from the electric machine assembly.
    Type: Grant
    Filed: July 11, 2014
    Date of Patent: October 16, 2018
    Assignee: GE Aviation Systems LLC
    Inventors: Bijan Chitsaz, Joseph Kenneth Teter, Darrell Morgan Bybee
  • Patent number: 9995308
    Abstract: The invention relates to an electric rotary machine including: a shaft of a rotor rotating about an axis, a fan carried by the shaft of the rotor, and a motor for driving the fan, allowing modulation of the relative rotational speed of the fan in relation to the shaft of the rotor.
    Type: Grant
    Filed: August 28, 2012
    Date of Patent: June 12, 2018
    Inventor: Patrick Vohlgemuth
  • Patent number: 9837879
    Abstract: A rotating shaft is attached rotatably to a front body and a rear body of an AC generator. Feeding brushes are disposed around a rear end portion of the rotating shaft. A heat radiating plate is attached to a rear end of the rear body. A control board is attached to a back of the heat radiating plate. External air flows in from an air inlet and advances in a radially inward direction after passing through a cooling fin disposed on the heat radiating plate by a first air flow passage. In addition, the external air passes through and around the rear end portion of the rotating shaft after flowing into a rear surface side of the heat radiating plate via a second air passage.
    Type: Grant
    Filed: September 3, 2015
    Date of Patent: December 5, 2017
    Inventor: Shinya Oowatari
  • Patent number: 9790955
    Abstract: A blower wheel for setting a flow of air in circulation has vanes (2) that extend from a vane root attached to a hub (6) of the blower wheel. The hub (6) has a bottom wall (8) through which a through-orifice (12) for a drive shaft of the blower wheel passes, and a side wall (10). The hub (6) also has at least one rib (14) located between the orifice (12) and the side wall (10). The rib (14) is formed by one or more segments (14a, 14b, 14c, 14d). The segment, or one of the segments (14a, 14b, 14c, 14d), has at least one free edge (15) extending from the bottom wall (8) and facing toward the side wall (10).
    Type: Grant
    Filed: March 22, 2013
    Date of Patent: October 17, 2017
    Inventors: Denis Scouarnec, Antoine Levasseur
  • Patent number: 9641039
    Abstract: A drive device having an electric drive. A drive device (1) includes at least one housing (15), at least one electric drive, the electric drive having a rotor arrangement with a rotor shaft (7) which is designed for rotation about a rotational axis (17), and a bearing arrangement (14 a, b) for mounting the rotor arrangement. The bearing arrangement (14 a, b) supports the rotor arrangement in relation to the rotational axis (17) radially inwardly, the bearing arrangement (14a, b) supporting the rotor shaft in relation to a support section (15, 16) that is fixed to the housing.
    Type: Grant
    Filed: March 5, 2012
    Date of Patent: May 2, 2017
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventor: Tomas Smetana
  • Patent number: 9531228
    Abstract: The electric rotating machine has the structure in which, for each one of the slots formed in its stator core, each of the innermost and outermost electrical conductors housed in the slot includes a R-chamfered portion formed in a bent portion thereof projecting outside from the slot and bent along a circumferential direction of the stator core. The R-chamfered portion is located at a radially inner or outer corner of the bent portion at which a side surface of the bent portion on the side being circumferentially bent intersects with a side surface of the bent portion on the radially inner or outer side. The R-chamfered portion is formed of a curved surface having a curvature radius larger than a curvature radius of the other three corners of the bent portion.
    Type: Grant
    Filed: August 20, 2013
    Date of Patent: December 27, 2016
    Inventors: Hiroshi Kaneiwa, Yuuichirou Itou
  • Patent number: 9479020
    Abstract: The stator of the electric rotating machine includes a stator winding constituted of a plurality of U-shaped conductor segments each including a turn portion and two straight portions, the U-shaped conductor segments being connected in series by welding at welded portions formed in ends of the straight portions, and a stator core formed with slots, the straight portions of each U-shaped conductor segment being accommodated in corresponding two of the slots. The welded side slot pitch as an interval of the corresponding two of the slots on the side opposite to the turn portions is narrower than the N-S magnetic pole pitch of the rotor. The stator winding includes overlapped wire wrapping sections each constituted of the U-shaped conductor segments accommodated in the corresponding two of the slots, and crossover wires disposed on the side of the welded portions for connecting the overlapped wire wrapping sections.
    Type: Grant
    Filed: December 28, 2011
    Date of Patent: October 25, 2016
    Inventor: Tomokazu Hisada
  • Patent number: 9461525
    Abstract: An electrical machine for an automotive vehicle has a housing (4). A stator arrangement (8) and a rotor arrangement (6) are disposed in the housing (4). At least one clearance (10) is formed in the housing (4) in proximity to the stator arrangement (8) and the rotor arrangement (6). A heat transmission device (12) is inserted into the clearance (10) as a prefabricated heat transmission module.
    Type: Grant
    Filed: September 19, 2014
    Date of Patent: October 4, 2016
    Inventor: Odon Szinyi
  • Patent number: 9450473
    Abstract: According to one embodiment, a motor for a vehicle includes a casing accommodating a rotor and a stator iron core inside thereof, and supporting each of both axial ends of the rotor shaft via a bearing, an air inlet port formed in a portion of the casing outside the bearing in the radial direction, and a fan provided between the rotor iron core and the bearing and rotating with the rotor shaft, wherein a portion of the casing positioned outside impellers of the fan in the axial direction forms a first housing and a second housing constituting a discharge channel, and the first housing includes a guide wall extending toward the outside in the radial direction, and the second housing includes a thinned wall portion located inside the guide wall in the axial direction to constitute the discharge channel between the thin wall portion and the guide wall.
    Type: Grant
    Filed: February 14, 2014
    Date of Patent: September 20, 2016
    Inventors: Takashi Nagayama, Aki Onuma
  • Patent number: 9331550
    Abstract: A motor cooling system is provided comprising an electric motor including a rotor having first and second axial ends, and a stator having first and second axial ends, a motor housing surrounding the motor including an air chamber extending around the motor and axially along the motor length, a motor enclosure enveloping the motor housing, and a cooling fan radially mounted to the motor enclosure and adapted to operatively cool said electric motor.
    Type: Grant
    Filed: June 17, 2013
    Date of Patent: May 3, 2016
    Inventors: Evgeni Ganev, Stephen L White, Leroy Allen Fizer, Norman Clampitt
  • Patent number: 9316405
    Abstract: Provided is a cyclone type humidifier and wet air purifier combination device using centrifugal force. The humidifier and purifier combination device includes: a main housing; a blower fan provided under a main housing; a bottom housing which is coupled to the main housing and has an air blowing port, a water level sensor, an ultrasonic vibrator and a circular fixing plate; first and second filters which are disposed in the circular fixing plate; an outer cylindrical body which is coupled to the circular fixing plate and has a discharge pipe and an air inlet; an inner cylindrical body which is coupled to the circular fixing plate and includes an air guide body having a funnel shape with an impurity discharge hole; and an air guide housing configured.
    Type: Grant
    Filed: July 10, 2014
    Date of Patent: April 19, 2016
    Inventors: Seung-Jun Moon, Seung Wook Choe
  • Patent number: 9300191
    Abstract: In one embodiment, an electric motor. A first bracket is fixed to the first side of a stator core in an axial direction, and is fixed to first bearing housing. A second bracket is fixed to the second side of the stator core, and is fixed to second bearing housing. The rotor includes a shaft rotatably supported by bearings, and an attached rotor core. Rotor core faces the inside of the stator core. A fan is attached to the shaft between the rotor core and the first housing. A flue formed between the first housing and the first bracket is configured to draw air from a port to a part of the first bracket. A rotation detection circuit includes a detected part fixed to the fan, and is within the flue. A sensor operable to detect the part is set in the flue, counter to the detected part.
    Type: Grant
    Filed: January 30, 2012
    Date of Patent: March 29, 2016
    Assignee: Toshiba Corporation
    Inventors: Takashi Nagayama, Toshiaki Yamada
  • Patent number: 9193256
    Abstract: A hybrid module (1) is installed a drive train of a motor vehicle between a combustion engine and a transmission and has an electric machine and a clutch installed in a common housing (2). The hybrid module (1) further has an air supply entrance (7) for introducing cooling air into the hybrid module (1). The air supply entrance (7) is an oval with a short axis directed toward the combustion engine and the transmission. Thus, the hybrid module has a short extent between combustion engine and transmission, and also allows a sufficiently large quantity of air to be supplied into the hybrid module.
    Type: Grant
    Filed: October 30, 2013
    Date of Patent: November 24, 2015
    Assignee: Dr. Ing. h.c. F. Porsche Aktiengesellschaft
    Inventor: Odon Szinyi
  • Patent number: 9197114
    Abstract: A brushless alternator has a housing with a front portion and a rear portion. A stator assembly, rotor assembly, and coil support are positioned within the housing. The coil support has a shank portion of a first outer diameter and a base portion of a second outer diameter greater than first outer diameter. The base portion includes a plurality of air flow openings that extend through a second sidewall. A rectifier and regulator assembly is positioned on the outside of the rear portion of the housing. A front fan circulates air across the stator assembly at the front portion of the housing. A rear fan creates a cooling flow of air through flow openings of the coil support to circulate air across the regulator and rectifier assembly and the stator assembly.
    Type: Grant
    Filed: March 8, 2013
    Date of Patent: November 24, 2015
    Assignee: All-Tek Maintenance Ltd.
    Inventors: Dale E. Benson, Ronald J. Heidel
  • Patent number: 9143019
    Abstract: The rotating electric machine is configured in such a way that a surface of the heat sink, on which the cooling fins of the heat sink are formed, faces the housing; and a plate, which blocks the surface of the housing facing the heat sink and forms a wind passage between the heat sink and the plate, intervenes between the cooling fins and the surface of the housing facing the heat sink; and outside air is aspirated from an inlet formed on the protective cover, and then, the outside air is passed through the wind passage formed between the heat sink and the plate so as to be passed through a window formed on the housing, and is exhausted, by the cooling fan of the rotor, from an outlet formed on the housing.
    Type: Grant
    Filed: June 10, 2013
    Date of Patent: September 22, 2015
    Assignee: Mitsubishi Electric Corporation
    Inventors: Naohide Maeda, Masahiko Fujita
  • Patent number: 9126320
    Abstract: A working tool in which a tip tool with a longitudinal shaft is linearly moved, wherein a motor and other tool constituting members are effectively cooled. In order to cool the inside of a motor-driven hammer comprising a main body, a motor, and a motion converter, the hammer is provided with a first cooling air passage through which a cooling air is supplied to the motor, and a second cooling air passage through which a cooling air is supplied to a hammer portion. To generate a cooling air to be supplied to the first and second cooling air passages, a cooling fan is provided at a lower portion of an output shaft of the motor and a hammer portion cooling fan is provided between the output shaft of the motor and the motion converter.
    Type: Grant
    Filed: December 8, 2009
    Date of Patent: September 8, 2015
    Inventors: Yasutoshi Shinma, Yasuhiro Kakiuchi
  • Patent number: 9041260
    Abstract: Embodiments of the invention provide an electric machine module including an electric machine which can include a stator assembly. The stator assembly can include stator end turns. Some embodiments can provide a housing at least partially enclosing the electric machine and the housing can at least partially define a machine cavity. Further, at least one baffle can be coupled to the housing at a region near the stator end turns, so that the at least one baffle surrounds a portion of a perimeter of the stator end turns.
    Type: Grant
    Filed: July 8, 2011
    Date of Patent: May 26, 2015
    Assignee: Remy Technologies, LLC
    Inventor: James J. Ramey
  • Patent number: 9041261
    Abstract: A rotating electrical machine includes a rotor which has a rotor core formed by stacking magnetic plates having an annular plate shape in an axial direction, a permanent magnet is inserted into a magnet insertion hole formed in the rotor core, and a rotor shaft is inserted into a shaft insertion hole surrounded by an inner peripheral surface of the rotor core; and a stator. A radial communication passage is formed by a communication penetration hole group that is formed by sequentially communicating a plurality of the penetration holes from a shaft insertion hole to a magnetic resistance hole in the radial direction. The plurality of the penetration holes are divided into at least two specific magnetic plates and formed such that the radial positions of the penetration holes are different from each other and the penetration holes partially overlap each other when viewed in the axial direction.
    Type: Grant
    Filed: July 3, 2012
    Date of Patent: May 26, 2015
    Assignee: AISIN AW CO., LTD.
    Inventors: Yoshihisa Yamamoto, Shinichi Otake, Takamasa Takeuchi, Masatoshi Sugimoto, Satoshi Murakami
  • Patent number: 9041262
    Abstract: A stator coil includes first to fourth in-slot portions and first and second turn portions. Both the first and third in-slot portions are received in one slot of a stator core, while both the second and fourth in-slot portions are received in another slot. The first and second turn portions both protrude from an axial end face of the stator core and respectively connect the pair of the first and second in-slot portions and the pair of the third and fourth in-slot portions. The second turn portion is located inside the first turn portion. When viewed along an axial direction of the stator core, the first and second turn portions extend so as to cross each other with a reference line C interposed therebetween; the reference line C is defined to extend along a circumferential direction of the stator core through an intersection between the first and second turn portions.
    Type: Grant
    Filed: January 18, 2013
    Date of Patent: May 26, 2015
    Inventors: Tomoyuki Okamura, Norio Kamegawa
  • Publication number: 20150130305
    Abstract: Disclosed is an end cap for a motor housing containing an electric motor, including a tubular structure defining an interior space, including an open first end connectable to the motor casing; a second end, including a first planar surface; a second planar surface offset from the first planar surface and substantially parallel to the first planar surface; and at least one air grate surface substantially perpendicular to the first planar surface and the second planar surface, positioned between and attached to the first planar surface and the second planar surface, and wherein the at least one air grate surface includes at least one air grate configured to permit air flow into and/or out of the interior space.
    Type: Application
    Filed: November 13, 2014
    Publication date: May 14, 2015
    Inventor: Reza Afshar
  • Patent number: 9030064
    Abstract: The totally-enclosed fan-cooled motor includes the stator; the rotor; the drive side bracket; the counter drive side bracket; a pair of the bearings; the external fan that sends cooling air to the stator; the internal fan; the heat radiator that is arranged on an outer side of the drive side bracket and is mounted on the rotation shaft; the cover that contains a joint, which connects the rotation shaft extending to an outer side of the drive side bracket of the motor and a reduction gear, and is provided in parallel with the joint; and the ventilation path that is arranged between the drive side bracket and an end of the cover, and includes the outlet causes the cooling air induced by rotation of the heat radiator to flow to the heat radiator and discharges the cooling air outside the motor.
    Type: Grant
    Filed: July 28, 2010
    Date of Patent: May 12, 2015
    Assignee: Mitsubishi Electric Corporation
    Inventors: Seiji Haga, Kazuto Minagawa, Tadashi Maeda
  • Patent number: 9030062
    Abstract: A cooling structure of a rotating electric machine includes a rotor core formed of a plurality of electromagnetic steel plates and a resin molding portion molding the rotor core with resin. The rotor core is provided with a through hole passing therethrough in the axial direction of the central axis that is a rotation axis. The rotor core is provided inside the through hole with an oil passage through which oil circulates. The resin molding portion has a cover portion covering the outer peripheral side of the oil passage. This configuration can provide the cooling structure of the rotating electric machine that achieves efficient cooling while suppressing occurrence of energy loss.
    Type: Grant
    Filed: October 16, 2009
    Date of Patent: May 12, 2015
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Katsunari Matsumoto
  • Publication number: 20150115752
    Abstract: There is provided an open-type induction motor, and more particularly, to an open type induction motor in which a rotor has a structure allowing air to flow therein, thus enhancing cooling efficiency of the rotor and a stator. The open-type induction motor includes: a stator including an iron stator core having a radial duct hole and a stator coil wound around the iron stator core; and a rotor disposed in a hollow of the stator so as to be rotatable by magnetism generated by the stator coil, and including a rotational shaft, a plurality of iron rotor cores stacked in an axial direction of the rotational shaft and coupled to the rotational shaft, a rotor coil coupled to the plurality of iron rotor cores, and duct plates stacked between the plurality of iron rotor cores and outwardly discharging air present at the inner side of the iron rotor cores.
    Type: Application
    Filed: October 27, 2014
    Publication date: April 30, 2015
    Inventors: Jong In Lee, Sung Hyun Moon, Kwang Soo Lee, Ok Jin Kim, Rae Eun Kim
  • Publication number: 20150108858
    Abstract: A fan motor apparatus having an improved heat-radiation performance includes a stator including an electronic device; a central shaft which is fixed onto the upper surface of the stator; a rotator mounted rotatably with the respect to the stator by being rotatably coupled to the central shaft; a heat-radiating fin portion provided on an inner surface of the rotator to generate wind toward the stator when the rotator rotates; and an cooling fin combined air flow guide formed on a surface of the stator to increase a heat exchange area for a heat exchange between the air generated by the heat-radiation fin portion and the air inside the stator; and at the same time guide the air from the exterior of the stator toward the central shaft so that the air is introduced into the rotator via a lower surface of the rotator.
    Type: Application
    Filed: October 7, 2014
    Publication date: April 23, 2015
    Inventor: Sang Gil Kim