Intermediate Confined Coolant Patents (Class 310/57)
  • Patent number: 11353030
    Abstract: A blower for providing a supply of air at positive pressure in the range of approximately 2 cmH2O to 30 cmH2O includes a motor, at least one impeller, and a stationary component. The stationary component includes an inlet and an outlet. The motor, the impeller, the inlet and outlet are co-axial.
    Type: Grant
    Filed: February 20, 2020
    Date of Patent: June 7, 2022
    Assignee: ResMed Motor Technologies Inc.
    Inventors: Barton John Kenyon, Peter John Sweeney
  • Patent number: 11309754
    Abstract: A generator (10) comprising a series of spaced annular stators (15) sandwiched between a series of rotors (11), the rotors (11) each being separated by annular collars (16), the annular collars (16) defining a central cavity; at least one cooling gas source for supplying gas to the central cavity; vents (23,24,25,26,27,28,31,32,33,34,35) through the annular collars (16) for providing a means of egress for the cooling gas (20) from the central cavity radially outwards over the rotors (11) and the annular stators (15).
    Type: Grant
    Filed: November 9, 2016
    Date of Patent: April 19, 2022
    Assignee: TIME TO ACT LIMITED
    Inventor: Hugh-Peter Granville Kelly
  • Patent number: 11264860
    Abstract: The present invention relates to an electric motor comprising a casing on which a plurality of heat dissipating fins extending in a longitudinally direction are disposed along a circumferential direction to form a longitudinally extending cooling airflow passage between adjacent heat dissipating fins; a first end cap and a second end cap attached to the casing at the ends to form a substantially closed interior space; a rotating shaft rotatably supported by the first end cap and the second end cap; a rotor positioned within in the internal space and mounted to the rotating shaft; and a stator positioned within in the internal space, surrounding the rotor and disposed adjacent to the casing.
    Type: Grant
    Filed: April 26, 2017
    Date of Patent: March 1, 2022
    Assignee: Robert Bosch GmbH
    Inventors: Tao Zhu, Shi Deng
  • Patent number: 11239721
    Abstract: An electric rotating machine according to an embodiment includes a stator element, a rotor element, and a housing. The rotor element is rotatable about a rotation axis. The housing houses the stator element and the rotor element, and is provided with an electric insulating portion on a part of or whole of an inner surface including a surface facing at least one of the stator element and the rotor element.
    Type: Grant
    Filed: August 29, 2019
    Date of Patent: February 1, 2022
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Hiroshi Takahashi, Yasuhito Ueda
  • Patent number: 11228224
    Abstract: A baffle 30 is disclosed for directing cooling air in a rotating electrical machine comprising a stator core and end windings. The baffle comprises a first surface 33 arranged to direct air flow along an end face of the stator core 16, and a second surface 35 arranged to direct air flow along a radially outwards surface of the end windings 18. This may help to reduce turbulence in the airflow, thereby allowing more efficient transfer of heat. Furthermore, greater priority may be given to air flow through the rotor/stator air gap 14, and thus increasing air flow through the centre of the machine.
    Type: Grant
    Filed: January 23, 2017
    Date of Patent: January 18, 2022
    Assignee: Cummins Generator Technologies Limited
    Inventor: Richard Gray
  • Patent number: 11052503
    Abstract: A spindle device includes a spindle housing, a spindle shaft rotatably supported inside the spindle housing, a spindle mount having an insertion cavity into which the spindle housing is inserted along the axial direction of the spindle shaft, and a mount cover covering the spindle mount. A temperature regulator for adjusting the temperature inside the mount cover is provided inside the mount cover.
    Type: Grant
    Filed: July 19, 2019
    Date of Patent: July 6, 2021
    Assignee: FANUC CORPORATION
    Inventor: Masahiro Murota
  • Patent number: 11005331
    Abstract: The invention relates to an enclosed rotary electrical machine including a cooling system comprising two internal fans (181, 182) fixedly mounted on shaft (160) at both ends of rotor (150). The rotor and stator (190) are contained in an enclosure sealed by two flanges. The fans allow dual air circulation in flux barriers surrounding the rotor magnets and formed by axial recesses running throughout the rotor, and also air circulation in the space created between the internal fans and the inner faces of the flanges comprising fins (113, 123) which orient the air flows created by the fans to capture the heat thereof. External cooling allows the enclosure and the flanges to be cooled, by air or liquid cooling.
    Type: Grant
    Filed: January 17, 2018
    Date of Patent: May 11, 2021
    Assignee: MAVEL S.R.L.
    Inventors: Wissam Dib, Luca Favre, Davide Bettoni
  • Patent number: 11005330
    Abstract: The invention relates to a closed rotary electrical machine incorporating a cooling system comprising two internal fans secured on the shaft of the rotor, at the two ends of the rotor. Each fan faces the inner face of a flange comprising fins orient the flow of air created by the internal fans and can capture the heat from operation of the machine. A casing which contains the rotor and the stator of the electrical machine is sealed by two flanges. The cooling system also comprises external cooling for cooling the casing and flanges, comprising air or liquid.
    Type: Grant
    Filed: September 25, 2017
    Date of Patent: May 11, 2021
    Assignees: IFP ENERGIES NOUVELLES, MAVEL S.R.L.
    Inventors: Wissam Dib, Luca Favre, Davide Bettoni
  • Patent number: 10971968
    Abstract: The self-ventilated motor (10) comprises a casing (12) having an air inlet opening (18) and an air outlet opening (20) and delimiting an air passage between the air inlet opening (18) and the air outlet opening (20), drive means (13) comprising a shaft (22) housed in the casing (12), a ventilation propeller (24) connected to the shaft (22) upon rotation and housed in the air passage, and a noise reduction device (26). The noise reduction device (26) comprises a first noise reduction member (28), attached to the casing (12) at the air inlet opening (18), a second noise reduction member (30) arranged on the ventilation propeller (24), and a third noise reduction member (32) fixed to the casing (12) at the air outlet opening (20).
    Type: Grant
    Filed: February 5, 2018
    Date of Patent: April 6, 2021
    Assignee: ALSTOM Transport Technologies
    Inventor: Thomas Mas
  • Patent number: 10971966
    Abstract: A power tool includes a tool housing and a motor assembly received in the tool housing. The motor assembly has a rear end portion, a front end portion, and a motor output shaft. A transmission housing is coupled to the motor housing with a transmission received in the transmission housing, to which the motor output shaft is drivingly coupled. A partition assembly includes a rear cover covering a rear end portion of the transmission housing that faces the front end portion of the motor. The rear cover of the transmission housing and the front end portion of the motor together define at least a first labyrinth path and a second labyrinth path therebetween configured to inhibit grease or dust migration between the transmission housing and the motor assembly.
    Type: Grant
    Filed: May 14, 2018
    Date of Patent: April 6, 2021
    Assignee: Black & Decker Inc.
    Inventors: Brent Austin Kuehne, Gao Jian, Wang Guoqing, Zhang Yukun, Chen Jianhua, Zhu Wen, Wu Yanmin, Lu Xiaoli
  • Patent number: 10961090
    Abstract: A hoist, in accordance with various embodiments, is disclosed herein. The hoist comprises a cooling apparatus coupled to a motor and disposed within a torque tube. The cooling apparatus may operate with the hoist or independently of the hoist. The cooling apparatus may pull air external to a housing of the hoist through the torque tube and cool the motor and/or a controller of the hoist.
    Type: Grant
    Filed: August 5, 2019
    Date of Patent: March 30, 2021
    Assignee: Goodrich Corporation
    Inventors: Bejan Maghsoodi, Yasuhide Kitaoka
  • Patent number: 10923984
    Abstract: An electric machine has a rotor on a rotor shaft. The rotor shaft is supported on bearings such that the rotor and the rotor shaft are rotatable around an axis of rotation. The rotor is surrounded radially on the outside by a stator, the stator by a casing. Covering elements are arranged at the axial ends of the rotor and stator, by which the rotor and the stator are enclosed with respect to the environment of the electric machine. One covering element is surrounded radially on the outside, and axially on the side facing away from the rotor and stator there, by an air guide element, the other covering element by an inner ring element. First and second cooling channels running axially are arranged in the casing or between the casing and stator. Rotor channels running axially are arranged in the rotor shaft and/or in the rotor.
    Type: Grant
    Filed: June 19, 2019
    Date of Patent: February 16, 2021
    Assignee: Siemens Mobility GmbH
    Inventors: Olaf Koerner, Oana Mucha, Wolfgang Wetzel
  • Patent number: 10910926
    Abstract: A method for repairing a stator core of a generator is presented. The stator core includes laminations grouped into packs. A ventilation spacer is disposed between adjacent packs. Laminations are separated from each other by insulation layers. The ventilation spacer is removed between adjacent packs having a damaged insulation layer between the laminations to locally loosen the laminations in the adjacent packs which allows the damaged insulation layer between the laminations to be repaired. A new ventilation spacer is reinstalled between the adjacent packs where the ventilation spacer being removed to retighten the laminations in the adjacent packs after completion of the repair. The new ventilation spacer is adhesively secured between the adjacent packs.
    Type: Grant
    Filed: May 31, 2018
    Date of Patent: February 2, 2021
    Assignee: SIEMENS ENERGY, INC.
    Inventors: Shane Bell, Randy Edward Whitener, Alejandro Felix
  • Patent number: 10833563
    Abstract: A totally-enclosed fan-cooled motor, including a stator provided in a closed motor housing, a rotor provided to the stator and mounted to a rotation shaft, a pair of bearings for holding a drive side and a non-drive side of the shaft, an external fan provided on the non-drive side of the shaft and outside the motor for sending wind to the motor housing, an air deflector mounted to an endplate disposed on the drive side located on an outer side of the bearing and the endplate holding the drive side of the shaft, outside the motor and proximal the bearing for cooling the bearing holding the drive side of the shaft. The air deflector includes a plurality of faceted surfaces at obtuse angles to one another about a periphery of the air deflector to deflect wind across the endplate and the drive side bearing.
    Type: Grant
    Filed: June 26, 2019
    Date of Patent: November 10, 2020
    Assignee: ABB Schweiz AG
    Inventors: Christopher A. Stockton, Stephen Douglas Browne
  • Patent number: 10784752
    Abstract: An inverter protecting structure includes an inverter that supplies driving electric power to a traction motor, and a protection cover that covers the inverter. A surface of the protection cover facing an upper surface of the inverter has corrugation. A first bolt mounted on the upper surface of the inverter is disposed under a recess of the corrugation.
    Type: Grant
    Filed: February 1, 2019
    Date of Patent: September 22, 2020
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Aya Tokito
  • Patent number: 10758318
    Abstract: Provided are an electric motor that enables to achieve downsizing while securing performance, and a dental device that includes the electric motor. A brushless slotless electric motor 10 includes: a stator 3 that includes a stator core 301 and a plurality of coils 31 to 33, the plurality of coils 31 to 33 being disposed at an inside of the stator core 301; and a rotor 2 that includes a shaft 21 and a magnet 22, the rotor 2 being rotated around the shaft 21 with respect to the stator 3. The plurality of coils 31 to 33 are adjacent to each other in a rotation direction of the rotor 2 so as not to lap mutually. Lf<Lc is satisfied where Lf is a length of the stator core 301 in an axial direction and Lc is a length of the coil in the axial direction.
    Type: Grant
    Filed: July 30, 2015
    Date of Patent: September 1, 2020
    Assignee: NAKANISHI INC.
    Inventor: Akito Nakamura
  • Patent number: 10720814
    Abstract: A method and electrical machine includes a housing and a tube within a channel, wherein a first coolant can flow around the tube and a second coolant can flow through the tube, whereby in order to cool the electrical machine, the first coolant is conducted in a coolant circuit within the electrical machine, the second coolant is conducted through the electrical machine, and the first coolant medium is conducted through a rotor of the electrical machine such that a compact and efficient cooling of the electrical machine becomes possible.
    Type: Grant
    Filed: April 28, 2016
    Date of Patent: July 21, 2020
    Assignee: Siemens Aktiengesellschaft
    Inventor: Thomas Lange
  • Patent number: 10669775
    Abstract: An integrated direct drive motor system for industrial use includes an outer rotor motor axially aligned with, and coupled to, a rotating drum, with no transmission or clutch mechanism between the two so that the drum is effectively an extension of the outer rotor of the motor. An adapter coupler attaches to the motor and the drum to allow the motor to directly drive the drum. In one exemplary embodiment, a flexible curtain is spooled vertically by the drum to control an industrial high-speed roll-up door. In another exemplary embodiment, an endless-loop belt is driven by a horizontally-oriented drum to control an industrial conveyor system. Various embodiments of the integrated direct drive motor system and various method of operation are disclosed.
    Type: Grant
    Filed: January 10, 2017
    Date of Patent: June 2, 2020
    Assignee: THERM-L-TEC SYSTEMS, LLC
    Inventors: Steven C. Cole, Joshua S. Cole, Peter E. Albrecht
  • Patent number: 10641123
    Abstract: A power plant for an aircraft such as a UAV with a gas turbine engine that drives an electric generator to produce electrical power. The electric generator is rotatably supported by two foil bearings. A centrifugal compressor is secured to a forward side of the generator rotor shaft. The centrifugal compressor draws in cooling air that flows through the two foil bearings and between a space formed between the rotor coil and the stator coil of the electric generator to provide for cooling of both foil bearings and the coils of the generator.
    Type: Grant
    Filed: March 22, 2018
    Date of Patent: May 5, 2020
    Assignee: Florida Turbine Technologies, Inc.
    Inventors: Andrew R Narcus, Cheryl A Schopf
  • Patent number: 10396632
    Abstract: A cooling oil is supplied from a cooling pipe to an outer peripheral surface of a mold resin, and a thermistor for measuring a temperature of a coil is provided at one end portion of the mold resin in an axial direction of a stator. A bulge portion for restraining the cooling oil from being supplied to the thermistor is provided bulging outward in the axial direction of the stator in such a manner as to surround at least part of a periphery of the thermistor, at one end portion of the mold resin in the axial direction of the stator.
    Type: Grant
    Filed: February 10, 2015
    Date of Patent: August 27, 2019
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Takashi Matsumoto
  • Patent number: 10320247
    Abstract: Ventilation apertures are respectively formed circumferentially so as to pass axially through an inner circumferential side of a rotor core, rotor grooves are respectively formed circumferentially on an outer circumferential surface of the rotor core so as to have groove directions in an axial direction, and a centrifugal fan is fixed to the shaft at an end of the rotor core near the front frame, and a cyclic path is formed in which, during operation of the centrifugal fan, cooling air flows into the ventilation apertures from near a rear frame, passes through the ventilation apertures and flows out near the front frame, flows radially outward near the front frame and flows into the rotor grooves, passes through the rotor grooves and flows out near the rear frame, and flows radially inward near the rear frame and flows into the ventilation apertures.
    Type: Grant
    Filed: October 4, 2013
    Date of Patent: June 11, 2019
    Assignee: Mitsubishi Electric Corporation
    Inventor: Masaki Horii
  • Patent number: 10298094
    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: Grant
    Filed: November 16, 2012
    Date of Patent: May 21, 2019
    Assignee: TOYO ELECTRIC MFG. CO., LTD.
    Inventors: Toshihiro Yamaguchi, Tamotsu Ibaraki
  • Patent number: 10298087
    Abstract: An electric machine, includes a rotor, a first radial fan wheel and a second radial fan wheel arranged on opposite sides of the rotor in axial direction, a first cooling air chamber and a second cooling air chamber; a first cooling air path extending in axial direction up to a side of the second radial fan wheel which faces away from the first radial fan wheel and from there leading into the second cooling air chamber, a second cooling air path extending in axial direction up to a side of the first radial fan wheel which faces away from the second radial fan wheel and from there leading into the first cooling air chamber, wherein the first radial fan wheel moves cooling air from the first cooling air chamber along the at least one first cooling air path and the second radial fan wheel moves cooling air from the second cooling air chamber along the at least one second cooling air path.
    Type: Grant
    Filed: September 9, 2016
    Date of Patent: May 21, 2019
    Assignee: Audi AG
    Inventor: Vladimir Chernogorski
  • Patent number: 10280930
    Abstract: A surface mounted pump assembly includes a centrifugal pump having a plurality of impellers and an electric motor adapted to drive the pump such that a thrust load from the pump is transmitted to the motor.
    Type: Grant
    Filed: June 13, 2016
    Date of Patent: May 7, 2019
    Assignee: OILFIELD EQUIPMENT DEVELOPMENT CENTER LIMITED
    Inventors: Wayne Horley, Jerry Evans, Richard Jackson
  • Patent number: 10122244
    Abstract: A motor generally includes a housing, a cover, and a cooling fan. The cover is provided with multiple air guiding fins and defines multiple first inlet holes corresponding to the air guiding fins 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: October 3, 2016
    Date of Patent: November 6, 2018
    Inventor: Wen-San Chou
  • Patent number: 10110095
    Abstract: A motor structure includes a housing, a cover, an air collecting structure fixed to the cover, an air guiding shell mounted around the housing and the air collecting structure, and a cooling fan. The cover defines a plurality of inlet holes. The air collecting structure defines a plurality of through holes aligned with the inlet holes of the cover, so as to provide a path for allowing one portion of the air current generated by the cooling fan to enter the housing. The housing defines a plurality of inlet holes and a plurality of outlet holes. One portion of the air guiding shell is located above the inlet holes of the housing to form another path for allowing another portion of the air current to enter the housing.
    Type: Grant
    Filed: October 3, 2016
    Date of Patent: October 23, 2018
    Inventor: Wen-San Chou
  • Patent number: 10110094
    Abstract: A motor generally includes a housing, a cover, an air collecting structure, and a cooling fan. The cover defines a plurality of inlet holes and is provided with a plurality of wind-catching projections. The air collecting structure, adapted to be fixed to the cover, defines a plurality of through holes aligned with the inlet holes of the cover. The housing defines a plurality of inlet holes. The cover is installed to the housing such that the wind-catching projections are respectively located above the inlet holes of the housing, so as to collect some of the air current. Furthermore, a plurality of 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: October 3, 2016
    Date of Patent: October 23, 2018
    Inventor: Wen-San Chou
  • Patent number: 10069379
    Abstract: An electric motor system includes a stator and a cover. The stator has windings that are affixed to an end periphery of the stator. The cover is secured to stator and defines a channel and a plenum. The channel extends along the end periphery and is configured to direct cooling fluid about the windings. The plenum extends over at least twenty percent of an outer perimeter of the cover and is configured to direct cooling fluid into the channel.
    Type: Grant
    Filed: February 26, 2016
    Date of Patent: September 4, 2018
    Assignee: Ford Global Technologies, LLC
    Inventors: Prasad Dev Hanumalagutti, Michael W. Degner, Becky Sue Morris
  • Patent number: 10050495
    Abstract: The invention provides systems and methods for cooling and lubrication of high power density electric machines with an enhanced fluid injection system. Multiple fluid flow passages may be provided within the electric machine, which may include one or more bearing fluid flow pathways and one or more rotor fluid flow pathways. The bearing fluid flow pathway may comprise one or more passages which may direct a fluid to contact one or more bearings for lubrication and cooling of the one or more bearings. The rotor fluid flow pathway may comprise one or more passages which may direct a fluid along the rotatable shaft toward the rotor and stator for cooling of the rotor and stator. The electric machine may also include a fluid flow passage leading to a junction, wherein the fluid flow pathway may split between the bearing fluid flow pathway and the rotor fluid flow pathway.
    Type: Grant
    Filed: August 11, 2016
    Date of Patent: August 14, 2018
    Assignee: Clean Wave Technologies, Inc.
    Inventors: Rudolph Garriga, Michael Kubic
  • Patent number: 9973060
    Abstract: The motor includes a molded stator; a cooling fan that is assembled to an end part of a shaft projecting from one end face of the molded stator; a fan cover that covers the cooling fan; a capacitor assembly box that is provided on the molded stator; and a foot plate that is provided on the molded stator. On an end face of the molded stator in an axial direction, a plurality of holes, each protruding from the end face, are formed; and a plurality of projections, each formed in positions opposite to a hole and press-fitted into its respective hole, are formed in the fan cover.
    Type: Grant
    Filed: December 28, 2012
    Date of Patent: May 15, 2018
    Assignee: Mitsubishi Electric Corporation
    Inventors: Hiroki Aso, Mamoru Kawakubo, Mineo Yamamoto, Hiroyuki Ishii, Junichiro Oya, Yuto Urabe
  • Patent number: 9863430
    Abstract: An air compressor for a fuel cell vehicle includes a volute housing, an impeller mounted to the volute housing, and a motor driving the impeller and cooling the motor and bearings that support a rotation shaft of the motor using air at an outlet side of the impeller. The air compressor has a cooling unit including: a coolant channel provided in plural along a radial direction in a motor housing that is coupled to the volute housing and through which a coolant flows; and a cooled air channel formed between coolant channels of the motor housing and through which the air flows.
    Type: Grant
    Filed: November 29, 2014
    Date of Patent: January 9, 2018
    Assignee: Hyundai Motor Company
    Inventor: Changha Lee
  • Patent number: 9768666
    Abstract: A stator for an electric motor includes a substantially hollow-cylindrical stator stack provided with wire windings and an end winding, which adjoins the stator stack in the axial direction. The stator stack includes a number of slots, wherein a coolant line is inserted into the respective slot. To improve efficiency of the electric motor, a section of the respective coolant line extends into the region of the end winding.
    Type: Grant
    Filed: August 15, 2012
    Date of Patent: September 19, 2017
    Assignee: SIEMENS AKTIENGESELLSCHAFT
    Inventors: Klaus Büttner, Klaus Kirchner, Norbert Wöhner
  • Patent number: 9689281
    Abstract: An Organic Rankine Cycle system includes a turbine driven by a working fluid and a generator driven by the turbine. The turbine includes a rotor volume that is at sub-atmospheric pressure, and the working fluid is sprayed into the rotor volume. The turbine can be arranged in a primary circuit that also includes, in flow series from the turbine, a condenser, a first pump, and an evaporator. The rotor volume can be arranged in a secondary cooling circuit that includes, in flow series from the rotor volume, a heat exchanger, a second pump, and a restriction valve located downstream of the second pump and upstream of the rotor volume.
    Type: Grant
    Filed: December 22, 2011
    Date of Patent: June 27, 2017
    Assignee: NANJING TICA AIR-CONDITIONING CO., LTD.
    Inventors: Frederick J. Cogswell, Bruce P. Biederman
  • Patent number: 9590464
    Abstract: Through a housing of an electric motor, an output shaft attached to a rotor penetrates. In this housing, an air tightness test hole of the electric motor which communicates with internal space of the electric space formed with the housing and a stator is formed. Further, an oil seal which blocks aeration between the internal space and an outside of the electric motor is attached to this housing.
    Type: Grant
    Filed: October 4, 2013
    Date of Patent: March 7, 2017
    Assignee: FANUC CORPORATION
    Inventors: Tomonaga Yamamoto, Makoto Funakubo
  • Patent number: 9467030
    Abstract: In one aspect, an electric machine is provided. The electric machine includes a housing including at least one air intake, an air outlet, and an air passage extending between the at least one air intake and the air outlet. The electric machine also includes a first heat sink positioned at least partially within the air passage, and a second heat sink positioned at least partially within the air passage downstream of the first heat sink. A cooling airflow through the at least one air intake flows through the air passage to cool the first heat sink and the second heat sink before the cooling airflow is exhausted through the air outlet.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: October 11, 2016
    Assignee: Regal Beloit Australia Pty Ltd
    Inventors: Steven Peter Camilleri, Stephen Scott Nurse, Matthew John Turner, Rafal Pawel Rohoza
  • Patent number: 9431878
    Abstract: An electric machine has a base body with a stator, a rotor shaft mounted in the base body, and a heat exchanger. Cooling ducts for a liquid cooling medium are arranged in the base body. The rotor shaft is embodied as a hollow shaft through which the liquid cooling medium can flow. The heat exchanger dissipates heat contained in the liquid cooling medium to the surroundings of the electric machine. The heat exchanger, the rotor shaft and the cooling ducts are fluidically connected in series, producing a closed circuit for the liquid medium. A feed element is arranged to co-rotate with the rotor shaft. The feed element is inserted in the closed circuit for the liquid cooling medium to forcibly circulate the liquid cooling medium in the closed circuit as the rotor shaft for the liquid cooling medium rotates.
    Type: Grant
    Filed: December 13, 2011
    Date of Patent: August 30, 2016
    Assignee: SIEMENS AKTIENGESELLSCHAFT
    Inventors: Konrad Brandl, Vladimir Danov, Klaus Dennerlein, Bernd Gromoll, Jürgen Hofmann, Patryk Piotrowski, Andreas Schröter
  • Patent number: 9376187
    Abstract: Provided is a power module for use in a marine vessel and a wind-propelled vessel provided with such a power module. The power module includes: a sail storage housing which has at least a portion thereof arranged below a deck of a marine vessel and having an opening on an upper end thereof; a sail which is movable between a storage position located inside the sail storage housing and a use position at which the sail projects from the deck in the vertical direction; and a sail movement unit which is configured to move the sail between the storage position and the use position.
    Type: Grant
    Filed: October 26, 2011
    Date of Patent: June 28, 2016
    Assignee: ECO MARINE POWER CO. LTD.
    Inventor: Gregory Mark Atkinson
  • Patent number: 9287747
    Abstract: A wind power generator with a closed internal cooling circuit has a stator that is implemented as sheet metal and includes a winding system which forms winding heads at the end faces of the stator. The stator is enclosed by a cooling jacket at least in the region of the laminated core, wherein permanent magnets of a rotor are disposed on a magnet wheel jacket embodied as a hollow shaft. The magnet wheel jacket is connected in a rotationally fixed manner to a shaft or shaft stubs by way of support elements at its end faces, wherein in its interior the hollow shaft has at least one tube whose lateral surface area runs at an equidistant clearance from the magnet wheel jacket. Blowers are mounted at the end faces of the rotor.
    Type: Grant
    Filed: October 25, 2010
    Date of Patent: March 15, 2016
    Assignee: SIEMENS AKTIENGESELLSCHAFT
    Inventors: Christoph Balzer, Karsten Brach, Christian Meyer, Axel Möhle, Andre Schlawitz, Frank Seibicke
  • Patent number: 9259677
    Abstract: According to one embodiment, a dynamo-electric machine includes a rotor, a stator, a frame, a shaft sealing device, and a gas purity maintainer. The gas purity maintainer includes an expansion tank, a first mist collecting section, a valve unit, a drain pot, and an instrument panel. The first mist collecting section is provided in the middle of a scavenging pipe extending from the expansion tank to discharge a coolant gas from the expansion tank. A downstream in the first mist collecting section is higher than an upstream.
    Type: Grant
    Filed: September 13, 2012
    Date of Patent: February 16, 2016
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Masahide Furukawa, Takeshi Oosawa, Kaori Oosawa, Hidetaka Yajima
  • Patent number: 9263925
    Abstract: The blower comprises: a blower case; a motor case; and a shaft pierced through the both cases. A first communication hole, which is formed in one of axial end faces of the motor case, introduces a part of compressed air into the motor case. A second communication hole, which is formed in the other axial end face of the motor case, discharges the compressed air to outside of the motor case. An external guidance path introduces the discharged air toward an outside face of the motor case. By actuating a motor, the compressed air, which has been introduced from the blower case into the motor case via the first communication hole, is discharged from the second communication hole, and the discharged air is introduced by the external guidance path and blown out toward the outside face of the motor case.
    Type: Grant
    Filed: August 26, 2014
    Date of Patent: February 16, 2016
    Assignee: SHINANO KENSHI KABUSHIKI KAISHA
    Inventor: Takeki Sakai
  • Patent number: 9206819
    Abstract: A fluid compression system is disclosed having a hermetically-sealed housing with at least a motor and a compressor arranged therein. The motor may drive both the compressor and a blower configured to circulate a cooling gas throughout the housing and thereby cool the motor and accompanying radial bearings. The cooling gas may be cooled in a gas-to-gas heat exchanger fluidly coupled to the blower and configured to receive a flow of process gas to cool the cooling gas. The process gas may be the suction process gas for the compressor, or the compressed process gas as discharged from the compressor.
    Type: Grant
    Filed: May 22, 2012
    Date of Patent: December 8, 2015
    Assignee: Dresser-Rand Company
    Inventor: William C. Maier
  • Patent number: 9200643
    Abstract: A fluid compression system is disclosed having a hermetically-sealed housing with at least a motor and a compressor arranged therein. The motor may drive both the compressor and a blower device coupled to the housing or otherwise arranged within the housing and configured to circulate a cooling gas throughout the housing and thereby cool the motor and accompanying radial bearings. The blower device circulates the cooling gas through a closed-loop circuit which may include a heat exchanger and gas conditioning skid. Carbon ring seals may be used to seal the shaft on both sides of the compressor so as to prevent the migration of liquid and solid contaminants into the closed-loop cooling circuit.
    Type: Grant
    Filed: September 15, 2011
    Date of Patent: December 1, 2015
    Assignee: Dresser-Rand Company
    Inventors: Jose L. Gilarranz, David J. Peer, Louis Lombardi, Steven Rockwood, William C. Maier
  • Patent number: 9148040
    Abstract: An electromagnetic component for mounting in a framework 47 so as to provide a stator segment 20 of an electrical machine 12. The component comprises a magnetic flux guide 32 and an electrical winding 34 for electromagnetic interaction with the magnetic flux guide 32. The component further comprises electrical terminals 52 for connecting the electrical winding 34 to an electrical network 61, at least one fluid pathway 42 for receiving a flow of cooling fluid in normal use, and at least one fluid connector 54 for coupling the fluid pathway 42 to a source of cooling fluid.
    Type: Grant
    Filed: June 22, 2012
    Date of Patent: September 29, 2015
    Assignee: ROLLS-ROYCE plc
    Inventor: John E. Anthony
  • Patent number: 9130433
    Abstract: An electric motor apparatus comprising: a stator component and a rotor component rotationally mounted coaxially with and within the stator component. The stator component and the rotor component each comprise windings configured to generate an electromagnetic field from an electric current. The electric motor further comprises an intermediate screening component rotationally mounted between the stator component and the rotor component and configured to provide at least some magnetic screening between the rotor component and the stator component.
    Type: Grant
    Filed: November 14, 2013
    Date of Patent: September 8, 2015
    Assignee: ARM Limited
    Inventor: David Pietromonaco
  • Patent number: 9065311
    Abstract: A linear motor cooling mechanism includes two cooling sections. Each cooling section is composed of multiple bypass heads, which are serially connected with each other. The cooling sections are additionally fixedly disposed on the linear motor. Each cooling section has a main flow way and multiple bypass flow ways in communication with the main flow way. External air is guided through the main flow way and distributed to the bypass flow ways so as to controllably flow toward the position of the mover of the linear motor for achieving an air-cooling heat dissipation effect.
    Type: Grant
    Filed: November 9, 2012
    Date of Patent: June 23, 2015
    Assignee: HIWIN MIKROSYSTEM CORP.
    Inventors: Yu-Jung Chang, Bo-Sheng Huang, Chih-Kai Fan
  • Publication number: 20150015097
    Abstract: Disclosed is a conduction cooling type superconducting rotator which includes a cryocooler, a rotary shaft including a columnar hall being spaced apart from the cryocooler to enclose the cryocooler and the rotary shaft configured to transfer a rotary power, a vacuum chamber including columnar halls arranged at both sides of the rotary shaft, first and second heat transfer elements being connected with the cryocooler and a heat transfer unit conducting a heat to the cryocooler through the first and second heat transfer elements wherein inner surfaces of the columnar halls and outer surfaces of the rotary shaft connectedly rotates and first and second cooling units configured to connect the first and second heat transfer elements and the cryocooler and the vacuum chamber is sequentially cooled in the first and second cooling unit.
    Type: Application
    Filed: July 4, 2012
    Publication date: January 15, 2015
    Applicant: HYUNDAI HEAYV INDUSTRIES CO., LTD.
    Inventors: Hyun Jang Shin, Keun Woong Kim, Jae Nam Bae
  • Patent number: 8872399
    Abstract: An electrical device includes a plurality of stacked laminates that form a tubular stator portion, a cooling passage partially defined by orifices formed in the plurality of stacked laminates, a housing including a cavity further defining the cooling passage, the cooling passage defining a fluid flow path parallel to a rotational axis of the stator portion, a sump portion communicative with the cooling passage, the sump portion including a cavity defined by the stator portion and the housing member.
    Type: Grant
    Filed: May 20, 2011
    Date of Patent: October 28, 2014
    Assignee: Remy Technologies, L.L.C.
    Inventors: Brad Chamberlin, Larry Kubes, Alex Creviston
  • Patent number: 8847444
    Abstract: A permanent magnet electric machine includes a rotor having a plurality of permanent magnets and a stator in magnetic communication with the rotor and positioned defining a radial air gap between the rotor and the stator. A housing is configured to seal the rotor and the stator from an outside environment. A pumping element is configured to urge a closed loop airflow across the plurality of permanent magnets to remove thermal energy therefrom, and a plurality of cooling channels are located in the housing and are configured to transfer thermal energy from the stator to a flow of fluid coolant through the plurality of cooling channels. A heat exchanger is located in thermal communication with the plurality of cooling channels to transfer thermal energy from the airflow to the fluid coolant.
    Type: Grant
    Filed: November 12, 2010
    Date of Patent: September 30, 2014
    Assignee: Hamilton Sundstrand Space Systems International, Inc.
    Inventor: Richard A. Himmelmann
  • Patent number: 8836180
    Abstract: A generator motor cooling structure for cooling a generator motor, which includes a housing storing an input/output shaft to which a rotor is attached and a stator disposed at an outer periphery portion of the rotor, by a cooling medium, includes: a protrusion portion that protrudes toward the rotor from a surface at a side of the housing of an end side member disposed at one end portion of the housing in a direction of a central rotation axis of the input/output shaft, wherein the protrusion portion is provided on an inner side of a coil of the stator in a radial direction, on an outer side of a bearing attached to the input/output shaft in the radial direction, in at least a partial region on a periphery of the central rotation axis.
    Type: Grant
    Filed: March 26, 2012
    Date of Patent: September 16, 2014
    Assignee: Komatsu Ltd.
    Inventors: Norihiko Satou, Yukihiko Sugimoto
  • Publication number: 20140217843
    Abstract: A motor having a cooling structure includes a rotor fixed to a rotatable motor shaft, a rotor coil formed adjacent the rotor, a coil protection cover disposed adjacent the rotor coil, mounted in the motor shaft, and having a coolant chamber filled with a coolant. The motor further includes a stator fixed adjacent an exterior circumference of the rotor and may include a cover in which one end portion of the motor shaft is rotatably penetrated having a cooling pin at an internal side surface opposite one side surface of the coil protection cover. The coolant filled in the coolant chamber of the coil protection cover receives heat generated in the rotor coil, and, by effectively emitting the heat to the outside through the cooling pin formed in a rear cover, durability of the entire motor can be improved, and failure of peripheral parts can be prevented.
    Type: Application
    Filed: July 18, 2013
    Publication date: August 7, 2014
    Inventors: Jae Hyuk SUH, Hyun KIM, Sam Gyun KIM, Seung Woo HA