Suction Pump Or Fan Patents (Class 310/62)
  • Patent number: 10601283
    Abstract: A cooling portion has an air inlet into which cooling air flows and is positioned in a preset range. When a distance from the upper to lower ends of an oil chamber in the axial direction of a rotating shaft member is h, and the shortest distance between an outer peripheral face of a casing and an inner peripheral face of a cover is a, the preset range is set in the following manner. Specifically, the preset range is set between ¼h upward and 5/4h downward relative to the upper end of the oil chamber as a reference point, in the axial direction of the rotating shaft member. Additionally, the preset range is set between the outer peripheral face of the casing and relative to the outer peripheral face of the casing as a reference point, in the radial direction of the rotating shaft member.
    Type: Grant
    Filed: February 21, 2018
    Date of Patent: March 24, 2020
    Assignee: DAIDO METAL COMPANY LTD.
    Inventors: Kwangik Na, Motohira Yamada, Shigeyoshi Mori
  • Patent number: 10501171
    Abstract: A rotorcraft together with a heat dissipation structure for a motor are provided. The motor includes a body and a revolving shaft driven by the body, and the heat dissipation structure for the motor includes: a casing being a hollow structure having a top opening and an air inlet in a bottom portion, in which the body is disposed inside of the casing, and an air channel is formed between a circumferential edge of the body and an inner wall of the casing; a head cover connected to the revolving shaft of the motor synchronously and provided with a plurality of air flow picks on the lower surface thereof; and a mounting stand fixed to an upper surface of the head cover.
    Type: Grant
    Filed: April 11, 2017
    Date of Patent: December 10, 2019
    Assignee: GUANGZHOU XAIRCRAFT TECHNOLOGY CO., LTD.
    Inventors: Bin Peng, Dingfeng Xiao
  • Patent number: 10451078
    Abstract: Provided is an air-conditioning blower motor unit that includes: a brushless motor which has an output shaft to be coupled with an air-conditioning blower fan constituting an air conditioner; a circuit board configured to allow the brushless motor to be driven by a supply of electric power; a casing configured to house the brushless motor and the circuit board; and a base frame configured to support the circuit board and the output shaft. The circuit board on the base frame is disposed at a position eccentric with respect to the output shaft inside the casing.
    Type: Grant
    Filed: January 20, 2017
    Date of Patent: October 22, 2019
    Assignee: KEIHIN CORPORATION
    Inventor: Masashi Ueda
  • Patent number: 10443619
    Abstract: A motor housing assembly for a cabin air compressor assembly is provided that includes a central body portion, a first end portion, and a second end portion. The central body portion has an internal cavity configured to receive an electric motor. The first end portion includes a first and second motor cooling inlet duct. The second end portion includes a flange configured to couple with an outlet housing of the cabin air compressor assembly. A motor cooling duct centerline is defined between the first and second motor cooling inlet duct and is perpendicular to a central body portion centerline. A first distance is defined between an outer edge of the first and second motor cooling inlet duct. A second distance is defined between an outer face of the flange and an intersection of the centerlines. A ratio of the first distance to the second distance is between 1.29 and 1.3.
    Type: Grant
    Filed: December 31, 2014
    Date of Patent: October 15, 2019
    Assignee: HAMILTON SUNDSTRAND CORPORATION
    Inventors: Darryl A. Colson, Brent J. Merritt, Paul E. Hamel, David Anderson, Jr.
  • Patent number: 10408184
    Abstract: An electric starter system for a powertrain or other system having an engine includes a solenoid device coupled to a pinion gear, a brushless starter motor, and a controller. The starter motor has actual machine speed, and is connectable to the flywheel via the pinion gear during a change-of-mind event when a commanded engine auto-stop sequence is interrupted before completion. When engine speed exceeds a threshold speed and is less than a calibrated starting speed, the controller executes a method in which closed-loop speed control of the starter motor is enabled using the engine speed as a reference value until an effective machine speed is within a permissible speed delta of engine speed. The controller causes the solenoid device to translate the pinion gear into engagement with the flywheel and starter motor, disables closed-loop speed control, and commands the starter motor to start the engine.
    Type: Grant
    Filed: May 1, 2018
    Date of Patent: September 10, 2019
    Assignee: GM Global Technology Operations LLC
    Inventors: Chandra S. Namuduri, Lei Hao, Suresh Gopalakrishnan
  • Patent number: 10399694
    Abstract: A ram air turbine system includes a rotatable shaft, a housing having a body defining an interior, a generator located within the interior and having a stator and a rotor, and a turbine having a first set of blades operably coupled with the rotatable shaft and configured such that airstream passing through the first set of blades rotates the shaft.
    Type: Grant
    Filed: September 2, 2015
    Date of Patent: September 3, 2019
    Assignee: GE Aviation Systems LLC
    Inventors: Hao Huang, Xiaochuan Jia, Lanchao Lin
  • Patent number: 10348152
    Abstract: An electric generator may include a housing having a housing casing running around in a circumferential direction and front and rear side walls, a radially outer stator rotatably arranged on the housing about an axis of rotation, and a radially inner rotor arranged on the housing in a rotationally fixed manner. The generator may also have an axially outer impeller wheel arranged on an outer side of the front side wall and arranged in a rotationally fixed fashion on the rotor. The generator may further have a primary air inlet having inlet openings formed in the rear side wall, a secondary air inlet having secondary inlet openings formed in the housing casing, an air outlet having a plurality of outlet openings formed in the front side wall, a primary air path from the primary air inlet to the air outlet, and a secondary air path from the secondary air inlet to the air outlet.
    Type: Grant
    Filed: October 16, 2017
    Date of Patent: July 9, 2019
    Assignee: Mahle International GmbH
    Inventors: Simon Malovec, Mitja Berce
  • Patent number: 10260519
    Abstract: A bidirectional axial fan device includes: a moving blade member with a plurality of vanes; and a casing that includes a mounting portion, a frame, and a plurality of spokes, a motor being mounted to the mounting portion, the frame forming a ventilation hole. The plurality of spokes couple the mounting portion to the frame at an exhaust air side during a normal rotation of the motor. An inner peripheral surface of the frame has a multiple stage shape, in which a part on the exhaust air side during the normal rotation has a diameter larger than a diameter of a part on an air intake side during the normal rotation, such that intervals between tops on the exhaust air side during the normal rotation at outer peripheral edges of the plurality of vanes and the inner peripheral surface of the frame are expanded.
    Type: Grant
    Filed: April 15, 2016
    Date of Patent: April 16, 2019
    Assignee: SANYO DENKI CO., LTD.
    Inventors: Satoshi Fujimake, Toshiya Nishizawa, Takashi Kawashima
  • Patent number: 10211697
    Abstract: The invention concerns a cover device for an electronics housing of an electric motor with at least one base segment and at least one rib formed on the base segment, wherein the base segment is geometrically configured so as to cover at least part of the surface of an electronics housing opening for drawing in a cooling air volume flow in order to close the electronics housing opening at least for a portion against the intrusion of solids, and the base segment forms with the at least one rib at least one flow duct, which can be fluidically connected to the electronics housing opening, and wherein the cover device is designed as a modular insert for the electronics housing.
    Type: Grant
    Filed: December 2, 2016
    Date of Patent: February 19, 2019
    Assignee: EBM-PAPST MULFINGEN GMBH & CO. KG
    Inventors: Michael Sturm, Thomas Sauer
  • Patent number: 10164496
    Abstract: An electric machine for starting an internal combustion engine, comprising a housing (10) having at least one sealing device (14) which seals an interior (10a) of the housing with respect to the surroundings of the housing (10), and at least one pressure reduction device (1), wherein the at least one pressure reduction device (1) is embodied so as to be moveable in a translatory fashion relative to the at least one sealing device (14) in order to form, in the case of an overpressure in the interior (10a) of the housing, at least one venting duct via which an at least partial reduction in pressure is ensured.
    Type: Grant
    Filed: April 16, 2013
    Date of Patent: December 25, 2018
    Assignee: SEG Automotive Germany GmbH
    Inventors: Thomas Biessenberger, Oliver Neumann, Viktor Rill
  • Patent number: 10141817
    Abstract: In one embodiment, an electric machine includes a rotor including a plurality of permanent magnets and rotatable about a central axis of the machine. The machine further includes a stator including a cylindrical stator shell and a plurality of stator windings positioned at the stator shell and located radially inboard of the plurality of permanent magnets. A plurality of heat sink segments are secured to a radially inboard surface of the stator shell. Each heat sink segment of the plurality of heat sink segments includes a base portion located at the radially inboard surface and a plurality of fins extending radially inwardly from the base portion.
    Type: Grant
    Filed: May 28, 2013
    Date of Patent: November 27, 2018
    Assignee: OTIS ELEVATOR COMPANY
    Inventors: James L. Hubbard, Marco Venturini, Davide Tenti
  • Patent number: 10110093
    Abstract: A motor generally includes a housing, a cover, and a cooling fan. The cover defines multiple first inlet holes and is provided with an air collecting ring around the first inlet holes for collecting some of the air current generated by the cooling fan. Furthermore, the cover is provided with multiple wind-catching projections. The housing defines multiple second inlet holes near its opening. The cover is installed to the housing such that the wind-catching projections are respectively located above the second inlet holes of the housing, so as to collect some of the air current. Furthermore, multiple recesses are defined between the wind-catching projections, so that some of the air current may flow along the outer surface of the housing via the recesses to further cool down the housing.
    Type: Grant
    Filed: August 26, 2016
    Date of Patent: October 23, 2018
    Inventor: Wen-San Chou
  • Fan
    Patent number: 10072672
    Abstract: A blower fan includes a lower plate portion made of a material having a thermal conductivity of 1.0 W/(m·K) or more, and a side wall portion made of a material having a thermal conductivity of 1.0 W/(m·K) or more. An upper plate portion arranged to cover an upper side of the impeller includes an air inlet. The upper plate portion, the side wall portion, and the lower plate portion are arranged to together define an air outlet on the lateral side of the impeller. The blower fan further includes a heat source contact portion with which a heat source is to be in contact, the heat source contact portion being arranged in a surface of the blower fan which faces away from the impeller. The heat source contact portion and the tongue portion are arranged to at least partially overlap with each other in the plan view.
    Type: Grant
    Filed: October 3, 2016
    Date of Patent: September 11, 2018
    Assignee: NIDEC CORPORATION
    Inventors: Takehito Tamaoka, Kazuhiko Fukushima
  • Patent number: 9920771
    Abstract: Some embodiments of an apparatus and system are described for a crossflow blower motor. An apparatus may comprise one or more motors operative to control a crossflow blower. The one or more motors may comprise one or more stator assemblies having a stator coil and a bent stator. The one or more motors may be configured to control a crossflow blower arranged to generate a flow of air in a direction substantially perpendicular to an axis of rotation of the crossflow blower. Other embodiments are described.
    Type: Grant
    Filed: February 1, 2016
    Date of Patent: March 20, 2018
    Assignee: INTEL CORPORATION
    Inventors: Ben M. Broili, Tod A. Byquist, Michael S. Brazel, Joseph A. Cervantes
  • Patent number: 9893589
    Abstract: The present invention concerns an electric machine (1), in particular an alternator, intended to be coupled to a driving or driven machine, in particular a heat engine, comprising: —a coupling flange (20) for coupling to the driving or driven machine, housing a fan (30) driven by the rotor, said flange comprising: —a rear portion (21) linked to a fixed portion (10) of the electric machine, —an interfacing front portion (22) interfacing with the driving or driven machine, said interfacing front portion being mounted on the rear portion (21), the front portion (22) having a central opening, the fan having a diameter greater than that of the central opening, —at least one air deflector secured to the flange (20).
    Type: Grant
    Filed: March 4, 2014
    Date of Patent: February 13, 2018
    Assignee: MOTEURS LEROY-SOMER
    Inventor: Patrick Vohlgemuth
  • Patent number: 9812920
    Abstract: An electric machine comprises a motor housing and an electronics enclosure coupled to the motor housing. The electronics enclosure defines an air passage between the electronics enclosure and the motor housing. The electronics enclosure further defines at least one air intake connected to said air passage. The electric machine also includes a fan configured to draw air through the at least one air intake and into the air passage.
    Type: Grant
    Filed: September 15, 2014
    Date of Patent: November 7, 2017
    Assignee: REGAL BELOIT AMERICA, INC.
    Inventors: Marc McKinzie, Stephen Thomas English, Justin Michael Magyar, Zachary Alexander Borts
  • Patent number: 9793780
    Abstract: An induction machine includes: a stator having a stator core and a coil; a rotor, which has a shaft, a rotor core secured to the shaft, and a secondary conductor; a bearing supporting the shaft; a cooling fan having a blade; and a cooling fan fixture. The secondary conductor includes a rotor bar and an end ring. The blade is located axially outward of the end ring, and the distal end of the blade in the axial direction extends axially outward of the coil end of the coil. The cooling fan has a securing portion located radially inward of the end ring and a cylindrical extended portion extending from the securing portion to the blade. The securing portion is secured to the rotor with the cooling fan fixture. The bearing is located axially inward of the distal end of the blade.
    Type: Grant
    Filed: December 13, 2013
    Date of Patent: October 17, 2017
    Assignee: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Norimoto Minoshima, Taizo Kusadome, Yasuyuki Satake, Shunsuke Sawano
  • Patent number: 9755474
    Abstract: An electrical device comprising a housing having cooling fins located in a central portion along an exterior surface of the housing and a laminated magnetic stack disposed within the housing and interfacing with an interior surface of the housing at the central portion. The cooling fins are configured alternatively higher and smaller on an inlet manifold and in opposition on an outlet manifold.
    Type: Grant
    Filed: November 28, 2014
    Date of Patent: September 5, 2017
    Assignee: SKF MAGNETIC MECHATRONICS
    Inventors: Nicolas Soulier, Sebastien Ferrari, Stephane Lafon, Alexandre Moureaud
  • Patent number: 9680353
    Abstract: An electric machine includes an inner fan in an inner cooling circuit and an outer fan for producing an outer coolant flow that is separate from the inner cooling circuit. The inner and outer fans are connected to a common shaft of the electric machine and have opposite delivery directions along an axial direction of the electric machine. The outer fan is arranged in a fan housing which has an inlet opening for the inward flow of a coolant of the outer coolant flow, and includes an air directing device, which guides the coolant in a line section which extends in the radial direction of the electric machine from the inlet opening towards the outer fan.
    Type: Grant
    Filed: October 9, 2013
    Date of Patent: June 13, 2017
    Assignee: SIEMENS AKTIENGESELLSCHAFT
    Inventors: Thomas Hümer, Ekkehard Ressel
  • Patent number: 9531242
    Abstract: Cooling apparatuses and methods comprising cooling apparatuses, such as those configured to be coupled to and/or cool electric machines (e.g., motors, generators, and the like).
    Type: Grant
    Filed: March 8, 2013
    Date of Patent: December 27, 2016
    Assignee: TECO-Westinghouse Motor Company
    Inventors: Devdatta P. Kulkarni, Gabriel Rupertus, Edward Chen
  • Patent number: 9531243
    Abstract: A motor includes an attachment portion, a first circuit board, and a second circuit board. The attachment portion is fixed to a frame of an apparatus to be driven by the motor. The first circuit board is located axially below coils and axially above the attachment portion. End portions of conducting wires defining the coils are connected to the first circuit board. The second circuit board is located axially below the attachment portion. An AC to DC conversion portion is mounted on the second circuit board. In addition, the attachment portion is arranged between the first and second circuit boards.
    Type: Grant
    Filed: October 1, 2014
    Date of Patent: December 27, 2016
    Assignee: NIDEC CORPORATION
    Inventors: Teppei Sakai, Takahiro Yama, Kazushi Ishikawa
  • Patent number: 9458861
    Abstract: An exemplary dust-proof fan includes a frame, a stator mounted in the frame and a rotor received in the frame. The rotor includes a bracket and multiple blades pivotably mounted to the bracket. The bracket includes an inner ring and an outer ring surrounding the inner ring. Each blade has an inner pole inserted into the inner ring and an outer pole inserted into the outer ring. The blades are spaced from each other to form multiple airflow passages therebetween when the dust-proof fan is in use. The blades are overlapped with each other to close the airflow passages when the dust-proof fan is not in use.
    Type: Grant
    Filed: July 31, 2013
    Date of Patent: October 4, 2016
    Assignees: AMBIT MICROSYSTEMS (SHANGHAI) LTD., HON HAI PRECISION INDUSTRY CO., LTD.
    Inventor: Shao-Chun Tang
  • Patent number: 9413207
    Abstract: A vehicle AC generator capable of enhancing a cooling effect by increasing an air volume of cooling air is obtained. The AC generator includes: a casing having a ventilation port on an outer periphery; a stator installed in the casing; a rotor supported in the stator in a rotatable manner; a fan installed oppositely to the ventilation port in the casing and rotated integrally with the rotor; and a protrusion formed on a surface of the casing opposing a tip end of the fan at a position adjacent to an outer periphery of the ventilation port of the casing.
    Type: Grant
    Filed: April 22, 2014
    Date of Patent: August 9, 2016
    Assignee: Mitsubishi Electric Corporation
    Inventors: Masao Akiyoshi, Kazuya Hasegawa, Atsushi Ohashi, Kazunori Tanaka
  • Patent number: 9343942
    Abstract: A rotating electrical machine for a vehicle includes a protective cover including a protruding portion projected to an opening side from a circumferential edge portion of a through hole formed in a bottom portion, a stud bolt that is inserted into the through hole to fix a rectifier to a portion of a casing at a position on one side in an axial direction, a mold resin including a projecting portion projected toward the protective cover, for electrically insulating the rectifier and the stud bolt from each other, and a fitting fixed to an extending portion of the stud bolt that extends from the through hole. A harness clamp is held by the fitting, and the projecting portion and the protruding portion are arranged at a position so that the projecting portion and the protruding portion are overlapped with each other in the axial direction of the stud bolt.
    Type: Grant
    Filed: November 30, 2011
    Date of Patent: May 17, 2016
    Assignee: Mitsubishi Electric Corporation
    Inventors: Hirotaka Kimata, Kazunori Tanaka
  • Patent number: 9306432
    Abstract: A motor is provided including a stator core having a plurality of stator fins projecting outwardly from the stator core. A plurality of stator cooling channels is defined between adjacent stator fins. A flow mixer ring is axially aligned with the stator core and separated therefrom by an axial gap. The flow mixer ring includes a plurality of ring fins projecting inwardly from an interior surface and a plurality of ring cooling channels defined between the plurality of ring fins. The plurality of ring fins extends from a first surface over at least a portion of an axial length of the flow mixer ring.
    Type: Grant
    Filed: October 31, 2012
    Date of Patent: April 5, 2016
    Assignee: HAMILTON SUNDSTRAND CORPORATION
    Inventors: Joseph Kenneth Coldwate, John M. Beck, Debabrata Pal, Milan Lucic
  • Patent number: 9257882
    Abstract: Provided is a vehicle AC generator having a retainer attached on a bearing containing portion of a front bracket, thereby realizing temperature reduction in a bearing without deteriorating the cooling performance as a whole. In the vehicle AC generator, a front bracket 2 has a bearing containing portion 21 supporting a bearing 5 fitted therein, and an air inlet 22 that is provided along the outer circumference of the bearing containing portion 21 and allows cooling air from a fan 83 to pass therethrough. In addition, a retainer 15 is attached on the bearing containing portion 21, so as to cover the bearing 5. The retainer 15 has a planar shape, and has a fin 15b as a surface area increasing portion for increasing an area of contact with the cooling air, formed at a position facing to and outside the air inlet 22 in the shaft direction.
    Type: Grant
    Filed: June 27, 2013
    Date of Patent: February 9, 2016
    Assignee: Mitsubishi Electric Corporation
    Inventors: Keisuke Shirai, Masao Akiyoshi
  • Patent number: 9160207
    Abstract: A motor, including: a motor body, the motor body including two ends; a damping ring, the damping ring including a bottom; a mounting bracket; a locking device; a control box; and a connection housing, the connection housing including two ends, and a sidewall. The damping ring is disposed on each end of the motor body. The bottom of the damping ring is supported by the mounting bracket. The damping ring is fixed on the mounting bracket by the locking device. One end of the connection housing is connected to a bottom of the motor body; the other end of the connection housing is connected to a top of the control box. A plurality of heat dissipation holes is arranged on the sidewall of the connection housing.
    Type: Grant
    Filed: March 17, 2013
    Date of Patent: October 13, 2015
    Assignee: ZHONGSHAN BROAD-OCEAN MOTOR CO., LTD.
    Inventors: Chongsheng Zeng, Songfa Tang
  • Patent number: 9088184
    Abstract: A drive motor, in particular for a fan wheel of a radiator of a motor vehicle, is provided. The drive motor comprising a stator, and a rotor rotating about an axis of rotation relative to the stator, which is driven in cooperation with the stator. Means for generating an air flow for cooling at least one component of the drive motor are arranged on the rotor.
    Type: Grant
    Filed: November 23, 2009
    Date of Patent: July 21, 2015
    Assignee: Brose Fahrzeugteile GmbH & Co. KG, Würzburg
    Inventors: Horst Eisert, Detlef Kemmer
  • Patent number: 9062591
    Abstract: Fan system (1) for a cooling system of an internal combustion engine, having an electric machine (2) and an impeller wheel (3), wherein the electric machine (2) comprises a pole housing (20), which is rotatably mounted by means of a bearing (21, 22), wherein the impeller wheel (3) is coupled to the pole housing (20) of the electric machine (2), wherein the impeller wheel (3) has a first engagement element (40), and the pole housing (20) has a second engagement element (50) which corresponds to the first engagement element (40), wherein the two engagement elements (40, 50) engage one in the other in such a way that they form a bearing seat (212) for the bearing (21) of the pole housing (20).
    Type: Grant
    Filed: May 30, 2013
    Date of Patent: June 23, 2015
    Assignee: Robert Bosch GmbH
    Inventors: Harold Bitzer, Andreas Mueller, Michael Schermann
  • Publication number: 20150137633
    Abstract: A vehicle AC generator capable of enhancing a cooling effect by increasing an air volume of cooling air is obtained. The AC generator includes: a casing having a ventilation port on an outer periphery; a stator installed in the casing; a rotor supported in the stator in a rotatable manner; a fan installed oppositely to the ventilation port in the casing and rotated integrally with the rotor; and a protrusion formed on a surface of the casing opposing a tip end of the fan at a position adjacent to an outer periphery of the ventilation port of the casing.
    Type: Application
    Filed: April 22, 2014
    Publication date: May 21, 2015
    Applicant: Mitsubishi Electric Corporation
    Inventors: Masao AKIYOSHI, Kazuya HASEGAWA, Atsushi OHASHI, Kazunori TANAKA
  • Publication number: 20150137631
    Abstract: A drive module for a vehicle has a transmission (12) and an electric machine (11) that is coupled to an input shaft (16) of the transmission (12). An air-filled cavity (23) is formed between the electric machine (11) and the transmission (12). The electric machine (11) is an external-rotor motor with a rotor (24) that surrounds the stator (25). A fan impeller (31) rotates with the rotor (24) and draws air out of the air-filled cavity (23) in an axial direction, draws the air through windings (27) of the stator (25) for cooling, and subsequently conveys the air in the radial direction into a housing-side flow duct (34) in which heated air can be accumulated and via which the air can be returned toward the cavity (23). The heated air can be cooled in the region of the flow duct (34) and/or in the region of the cavity (23).
    Type: Application
    Filed: November 13, 2014
    Publication date: May 21, 2015
    Inventors: Henrik Schrage, Sebastian Wachter
  • Patent number: 9025336
    Abstract: A linked semiconductor module unit links a plurality of semiconductor modules by a first bus bar and a second bus bar, which are embedded in resin parts. The linked semiconductor module unit is disposed in a place other than on a printed circuit board. The semiconductor module linking structure is implemented readily by molding the bus bars together with semiconductor chips and lands to form the resin parts.
    Type: Grant
    Filed: December 2, 2013
    Date of Patent: May 5, 2015
    Assignee: Denso Corporation
    Inventors: Hideki Minato, Hideki Kabune, Atsushi Furumoto
  • Patent number: 9013077
    Abstract: To include a stator, a rotor that is arranged within the stator, a frame that encloses the stator and the rotor, a pair of bearings that respectively support a driving side and a driven side of a rotary shaft, and a fan that is mounted on the rotary shaft. A plurality of blades that extend in a radial direction of the rotor and are provided to stand at a substantially equal interval in a rotation direction of the rotor are formed in the fan. A cross section of each of the blades in a direction perpendicular to the rotor has an elliptical shape extending in the radial direction, and the cross section widens toward a side of the fan.
    Type: Grant
    Filed: August 4, 2010
    Date of Patent: April 21, 2015
    Assignee: Mitsubishi Electric Corporation
    Inventor: Shinsaku Maeda
  • Patent number: 9013076
    Abstract: Certain embodiments provide systems and methods for cooling a drive end bearing. The system may include an alternator including a drive end bearing, a drive end fan and a front housing face. The drive end fan may include a shaft aperture and auxiliary air flow inlet apertures positioned circumferentially around the shaft aperture. The front housing face may include auxiliary fins coupled to the drive end bearing. The auxiliary fins may protrude from the front housing face. The auxiliary fins may be arrayed axially on the front housing face. In various embodiments, the drive end fan is rotated to draw air through the auxiliary air flow inlet apertures and adjacent to at least a portion of auxiliary fins of the front housing face. The at least a portion of the auxiliary fins transfers heat from the drive end bearing to the air.
    Type: Grant
    Filed: October 10, 2012
    Date of Patent: April 21, 2015
    Assignee: Prestolite Electric Inc.
    Inventors: Robert D. Hall, Michael J. Hanchett, Andrew Cawse
  • Patent number: 8987952
    Abstract: The present invention relates to an open rotary electric machine having a rotor mounted to rotate relative to at least one stator and co-operating with the stator to define at least one airgap, the rotor being suitable for rotating at least one fan having at least two channels, said fan including a first channel generating a first cooling air stream passing through the stator, and a second channel generating a second cooling air stream passing through the rotor, the fan including a solid web separating the first and second air streams.
    Type: Grant
    Filed: February 16, 2009
    Date of Patent: March 24, 2015
    Assignee: Moteurs Leroy-Somer
    Inventor: Alexis Dutau
  • Publication number: 20150069866
    Abstract: A cooling device mounted in a flow path formed by an internal space of a cooling fluid duct being mounted on the periphery of a frame of a rotating electric machine is configured in such a manner that at least one of the end-face portions between a first end-face portion through which a cooling fluid flows into the cooling device and a second end-face portion from which the cooling fluid flows out thereof is placed tilting with respect to at least one of a first orthogonal surface perpendicular to an inflow direction of the cooling fluid and a second orthogonal surface perpendicular to an outflow direction of the cooling fluid, or with respect to a flow-path-width's direction perpendicular to a direction in which an axis line of a stator extends.
    Type: Application
    Filed: July 19, 2012
    Publication date: March 12, 2015
    Applicant: Mitsubishi Electric Corporation
    Inventors: Kiyonori Koga, Masao Akiyoshi
  • Publication number: 20150061428
    Abstract: An axial gap-type power generator in an embodiment includes a rotor provided with a magnet and a stator provided with a coil, the rotor and the stator being arranged via a gap in an axial direction of a rotation shaft. Further, a blade is installed at the rotor and the blade generates a cooling wind by rotation of the rotor. Here, the blade is installed at the rotor so that the cooling wind flows through the gap between the rotor and the stator from an inside to an outside in a radial direction of the rotation shaft.
    Type: Application
    Filed: August 26, 2014
    Publication date: March 5, 2015
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Tomohiko JIMBO, Kei Matsuoka, Yasuo Kabata, Asako Inomata, Yoshihiro Taniyama
  • Patent number: 8946951
    Abstract: A fan (20) comprises a fan hub (22), fan blades (24) which are mounted on the fan hub (22), and a drive motor having an outer rotor (30), wherein the outer rotor (30) is arranged inside the fan hub (22). The outer rotor (30) is arranged in the fan hub (22) in such a way that the outer rotor (30) is supported in a radially outward direction on the radial outer wall (36) of the fan hub (22), by means of cooling fins (32) which are formed integrally with the fan hub (22).
    Type: Grant
    Filed: October 12, 2012
    Date of Patent: February 3, 2015
    Assignee: Robert Bosch GmbH
    Inventors: Samir Mahfoudh, Sebastian Hansen, Asli Arslan-Huerst
  • Patent number: 8933599
    Abstract: A cooling system of a AC generator for vehicles has a stator with a stator winding, a rotor that is arranged in an inner circumferential side of the stator, a rectifier that converts an alternating current voltage generated in the stator winding into direct current, and a rear cover that covers the rectifier. The rear cover has an intake duct connecting portion that projects outside and an air intake duct is attached to a tip portion of the intake duct connecting portion. A dividing wall that divides an internal space of the rear cover into a plurality of spaces along a direction extending from the rectifier backwardly relative to the direction of rotation is disposed in the intake duct connecting portion.
    Type: Grant
    Filed: July 21, 2011
    Date of Patent: January 13, 2015
    Assignee: Denso Corporation
    Inventor: Takafumi Tsuge
  • Patent number: 8933600
    Abstract: A brushless DC motor structure including a motor body, a controller, and a fan radiator. The fan radiator is mounted between the motor body and the controller to disperse heat from the motor body and the controller. The brushless DC motor structure increases air flow on the surface of the motor body and the controller by the fan radiator and speeds up heat dispersion, and meanwhile effectively controls the operating temperature of the motor body and the controller. Thus, the brushless DC motor structure has an excellent heat dispersion capability, and the failure rate thereof has been largely reduced.
    Type: Grant
    Filed: November 3, 2011
    Date of Patent: January 13, 2015
    Assignee: Zhongshan Broad-Ocean Motor Co., Ltd.
    Inventors: Yonggang Liu, Songfa Tang
  • Publication number: 20150008771
    Abstract: A motor has a stator and a rotor rotating at the center of the stator, and the rotor includes a concave groove formed with a predetermined depth along the circumference of the rotor, and a plurality of blades formed at the concave groove to protrude therein and having a height not greater than the depth of the concave groove, wherein a flow channel is formed between the stator and the rotor along the length direction of the rotor so that air flows therein, and wherein when the rotor rotates, the plurality of blades guides an air flow to the flow channel so that the rotor is cooled.
    Type: Application
    Filed: December 12, 2013
    Publication date: January 8, 2015
    Inventors: Yong Bok LEE, Chang Ho KIM, Bok Seong CHOE
  • Publication number: 20150000549
    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: Application
    Filed: February 14, 2014
    Publication date: January 1, 2015
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Takashi NAGAYAMA, Aki ONUMA
  • Publication number: 20140368067
    Abstract: A rotor is provided for a rotating electric machine. The rotor includes a magnetic pole core and a cooling fan. The cooling fan includes a base plate laser-welded to an axial end face of the magnetic pole core and a plurality of fan blades extending from the base plate. Further, in the rotor, a weld formed between the base plate of the cooling fan and the magnetic pole core has a pair of open ends.
    Type: Application
    Filed: June 5, 2014
    Publication date: December 18, 2014
    Inventors: Hiroo KAIZU, Seiji KONDOH, Shigenobu NAKAMURA
  • Publication number: 20140368066
    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: Application
    Filed: June 17, 2013
    Publication date: December 18, 2014
    Inventors: EVGENI GANEV, STEPHEN L. WHITE, LEROY ALLEN FIZER, NORMAN CLAMPITT
  • Patent number: 8912695
    Abstract: A totally enclosed fan cooled (TEFC) induction motor or other type of induction motor auxiliary cooling system has a buffet thermal shroud that is oriented in opposed spaced relationship over existing motor housing cooling fins. An airflow channel is defined between the motor cooling fins and the shroud, for direction and passage of a cooling airflow. Tabs are oriented in the airflow channel between opposed cooling fins where they are in thermal and fluid communication with the cooling air flow. In some embodiments the tabs are shroud fingers that project inwardly from the shroud. The tabs or shroud fingers create turbulence in the cooling air flow that increases convective heat transfer efficiency and contact time between the cooling air and motor cooling fins. Tabs or shroud fingers also absorb heat from the cooling air flow. Shroud fingers also transfer that absorbed heat conductively to the shroud.
    Type: Grant
    Filed: July 18, 2012
    Date of Patent: December 16, 2014
    Assignee: Siemens Industry, Inc.
    Inventor: Emam Hashish
  • Patent number: 8878413
    Abstract: An alternating-current generator, in particular a three-phase generator, for a motor vehicle, having a rotor including north and south poles, particularly having claw-pole fingers extending in the axial direction and alternating as north and south poles at the rotor's periphery, a stator having a magnetic core, especially laminated core, having slots and a stator winding disposed in the magnetic core's slots, the stator winding having winding overhangs that are coolable by an approximately radial air flow produced by at least one fan mounted at the rotor, the stator being situated opposite the rotor, and the stator and the rotor having defined positions relative to each other, the multiphase stator winding being made up of winding elements, at least one winding element having more than two sections inserted in slots, and at least one winding element having more than one reversal section which brings about a change in the radial position.
    Type: Grant
    Filed: January 2, 2008
    Date of Patent: November 4, 2014
    Assignee: Robert Bosch GmbH
    Inventors: Gert Wolf, Thomas Berger, Eberhard Rau, Alexander Shendi, Helmut Kreuzer, Christoph Schwarzkopf
  • Publication number: 20140312723
    Abstract: In an electric motor for a vehicle, a fan integrally rotatable with a rotor is located on one end in a direction of the axis of the rotor, a bracket for accommodating the fan is joined on one end in the direction of the axis of a stator frame for accommodating a stator, and the bracket is provided with an outside air inlet and a dust emission outlet. The bracket is provided with an expanded section which has an inner peripheral surface bulging on an outer peripheral side in a radial direction beyond a peripheral surface of the stator frame, and at least a part of the dust emission outlet opens to the inner peripheral surface of the expanded section.
    Type: Application
    Filed: November 16, 2012
    Publication date: October 23, 2014
    Applicant: TOYO ELECTRIC MFG. CO., LTD.
    Inventors: Toshihiro Yamaguchi, Tamotsu Ibaraki
  • Patent number: 8866353
    Abstract: A first inverter ventilation aperture is disposed so as to pass through a portion of a fin base that faces a bearing, a first rotor ventilation aperture is disposed so as to pass through a portion of a bottom surface portion that faces the bearing, and a first cooling airflow ventilation channel is formed in which a cooling airflow flows radially inward through radiating fins, then flows toward a first surface side of a mount portion through the first inverter ventilation aperture, flows axially through an interior portion of a stator core, and then flows out between the bottom surface portion and a base portion through the first rotor ventilation aperture, and subsequently flows radially outward between the bottom surface portion and the base portion due to rotational driving of a centrifugal fan.
    Type: Grant
    Filed: January 20, 2011
    Date of Patent: October 21, 2014
    Assignee: Mitsubishi Electric Corporation
    Inventors: Yoshihiro Miyama, Moriyuki Hazeyama, Masaya Inoue, Yoshiko Obiraki, Tatsuya Kitamura
  • Patent number: 8860265
    Abstract: An electric motor apparatus having an improved cooling system comprising a first compartment housing an electric motor mounted on a rotating shaft, a second compartment housing an electric circuit adapted to connect said electric motor to a power supply source, and a cooling system adapted to dissipate the heat generated by said electric motor apparatus. The cooling system comprises a fan mounted on said rotating shaft in a position adjacent to said second compartment and on the opposite side with respect to said first compartment and at least one finned heat exchanger adapted to dissipate the heat generated by said electric circuit inside said second compartment.
    Type: Grant
    Filed: March 17, 2011
    Date of Patent: October 14, 2014
    Assignee: ABB S.p.A.
    Inventors: Gianluigi Galli, Ivano Rovellini, Silvia Bono
  • Patent number: 8847446
    Abstract: A rotor arrangement for an electric machine comprises a rotor shaft and a rotor segment coupled to the rotor shaft. The rotor segment includes a main body and a collar integral with the main body. The collar includes an outer peripheral groove adjacent to the main body portion of the rotor segment. The rotor arrangement further includes a cooling fan that has a center opening defined by an inner perimeter. The center opening of the fan is configured to slidably engage the collar and is adjustable between an insertion diameter and a locking diameter. When the center opening is at the locking diameter, at least a portion of the inner perimeter of the fan extends into the outer peripheral groove in the collar such that the fan is retained on the rotor segment.
    Type: Grant
    Filed: November 4, 2011
    Date of Patent: September 30, 2014
    Assignee: Remy Technologies LLC
    Inventor: David E. Maley