Liquid Coolant Patents (Class 310/54)
  • Patent number: 10465679
    Abstract: An electric motor driven pump assembly configuration that includes an electric motor, a hydraulic pump driven by the electric motor is provided. The hydraulic pump is driven by the electric motor to convert electrical power into hydraulic power. A multi-inlet hydraulic pump enhances cooling flow through a pump case of the assembly and also enhances cooling flow for cooling the electric motor and corresponding drive/control components.
    Type: Grant
    Filed: October 10, 2014
    Date of Patent: November 5, 2019
    Assignee: Eaton Intelligent Power Limited
    Inventor: Nicholas John Hansen
  • Patent number: 10461599
    Abstract: An automotive motor drive unit includes a breather passage (Q) provided in casings (21a, 21r, 22a, 22r) that form an outer shape of the automotive motor drive unit; an entrance port (48m) that is provided at an inlet side of the breather passage and that connects with an internal space (L) defined by the casings; an exit port (67) that is provided at an outlet side of the breather passage and that connects with a space outside the casings; and obstacles (24, 25, 26) standing to form an inner wall of the breather passage and preventing lubrication oil in the internal space from proceeding straight ahead via the entrance port toward the exit port.
    Type: Grant
    Filed: August 10, 2015
    Date of Patent: October 29, 2019
    Assignee: NTN CORPORATION
    Inventors: Shiro Tamura, Takanori Ishikawa, Shinya Taikou
  • Patent number: 10461593
    Abstract: The rotary electric machine includes a stator, a passage, an inlet opening, an outlet opening, and a partition. The stator has an outer periphery. The passage is provided around the outer periphery. A cooling medium is to flow through the passage. The inlet opening is connected to the passage. The cooling medium is to be supplied to the passage via the inlet opening. The outlet opening is connected to the passage. The cooling medium is to be discharged from the passage via the outlet opening. The inlet opening and the outlet opening divide the passage into a longer passage and a shorter passage shorter than the longer passage. The partition is provided in the shorter passage and comprises an elastic material to contact with an inner surface of the shorter passage so as to restrict a flow of the cooling medium.
    Type: Grant
    Filed: May 15, 2017
    Date of Patent: October 29, 2019
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Makoto Fujihira, Toshiyuki Nagumo
  • Patent number: 10454329
    Abstract: An electrical hollow conductor (1) in the shape of a tubular body (2) having a hollow interior (3) for continuously winding an electromagnetic coil, wherein the body (2) comprises an electrically conductive material, has an outside diameter and an inside diameter, wherein a ratio of the outside diameter to the inside diameter is in a range of 1.25:1 to 4:1, and is coated with an electrically insulating layer (4) on an outer casing surface of the body (2) and wherein the interior (3) is configured so that it hydraulically or pneumatically connects a first open end of the body (2) and a second open end of the body (2).
    Type: Grant
    Filed: April 2, 2015
    Date of Patent: October 22, 2019
    Assignee: DYNAMIC E FLOW GMBH
    Inventor: Nikolaus Schweinert
  • Patent number: 10442285
    Abstract: A cooling apparatus for a hybrid vehicle is provided with an oil circulating circuit supplying oil discharged from an electric oil pump to a first motor, a second motor, an inverter, and a lubrication-required part, and the oil circulating circuit includes: a first circuit supplying the oil that is discharged from the electric oil pump, and is cooled by an HV radiator to the inverter, the first motor, and the second motor; and a second circuit supplying the oil that is discharged from the electric oil pump without being cooled by the HV radiator to the lubrication-required part.
    Type: Grant
    Filed: November 21, 2016
    Date of Patent: October 15, 2019
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Daisuke Tokozakura, Kazuya Arakawa, Takahiro Shiina
  • Patent number: 10441050
    Abstract: A mount for an electric motor, the mount comprising a sleeve for receiving a motor, the sleeve having a longitudinal axis extending between a first end and a second end, wherein the first end comprises a plurality of plurality of projections and the plurality of projections extend along the longitudinal axis. The sleeve may receive the motor via the first end or the second end. The plurality of projections may be spaced around a circumference of the sleeve. The plurality of projections may comprise a pattern of substantially constant frequency around the sleeve. The plurality of projections may be substantially V-shaped with the point extending along the longitudinal axis from the first end of the sleeve.
    Type: Grant
    Filed: October 19, 2016
    Date of Patent: October 15, 2019
    Assignee: Dyson Technology Limited
    Inventors: Jean-Baptiste Jerome Blanc, Craig Douglas, Antoine Francois Atkinson
  • Patent number: 10447115
    Abstract: A rotary electric machine includes a rotor, stator and a motor case. The rotor includes a rotor core, plural magnets disposed in the rotor core, and an end face plate disposed such that an inside surface thereof is in contact with an end face of the rotor core. The stator includes a stator core and a coil. The stator is disposed on an outer peripheral side of the rotor to face the rotor. The motor case accommodates the rotor and the stator and has a storage portion for storing liquid therein. A lower part of the rotor is immersed in the storage portion, and the motor case has an inclined wall extending from an upper side toward the permanent magnet or a peripheral part of the permanent magnet and guiding liquid scraped upward by the rotor to the magnet or the peripheral part of the magnet.
    Type: Grant
    Filed: October 19, 2017
    Date of Patent: October 15, 2019
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Nobuaki Hayashi, Manabu Yazaki
  • Patent number: 10439477
    Abstract: A liquid cooling system for an electric motor includes: a pump for liquid to cool the electric motor; a heat exchanger that removes heat from the liquid; a manifold extending above a stator of the electric motor, the manifold receiving the liquid under pressure and having a first opening that directs a first liquid jet onto the stator; and a first tray above first end turns of the stator, the manifold having a second opening that directs a second liquid jet onto the first tray, the first tray having a third opening that performs gravity-fed liquid distribution onto the first end turns.
    Type: Grant
    Filed: January 31, 2014
    Date of Patent: October 8, 2019
    Assignee: Tesla, Inc.
    Inventors: Gary A. Pinkley, David F. Nelson, William R. Fong, Scott Heines, Edwin M. Pearce, Jr.
  • Patent number: 10411562
    Abstract: A method for generating electrical power may include the steps of rotating a rotor of a generator at a speed in excess of about 12,000 revolutions per minute (rpm) to about 25,000 rpm and producing power with the generator at a rate in excess of about 800 kilowatts (kW). The generator has a power/weight ratio no smaller than about 3 kW/lbs. A rotor is cooled with cooling oil internally circulated through the rotor of the generator so that contact of cooling oil with external surfaces of the rotor may be precluded. The stator is also cooled with oil that is prevented from contacting the external surfaces of the rotor. Pressurized airflow may be produced in a gap between the rotor and a stator of the generator to preclude entry of cooling oil into the gap.
    Type: Grant
    Filed: January 14, 2016
    Date of Patent: September 10, 2019
    Assignee: HONEYWELL INTERNATIONAL INC.
    Inventors: Cristian Anghel, Toren S Davis, Tom Phielix, Wayne Pearson
  • Patent number: 10404140
    Abstract: A cooling structure of a drive motor may include a ring-shaped support member disposed on the inside of a housing and supporting the stator core of the drive motor, in which the support member may have a channel for cooling oil flow therein and nozzle openings for spraying the cooling oil to the stator core and a stator coil wounded around the stator core.
    Type: Grant
    Filed: December 9, 2016
    Date of Patent: September 3, 2019
    Assignee: Hyundai Motor Company
    Inventors: Sanghoon Moon, Yeonho Kim, WoongChan Chae, YoungJin Shin, Hyoungjun Cho, Jung Shik Kim
  • Patent number: 10381900
    Abstract: An electric machine assembly having a main machine stator core having at least one stator post, a set of stator windings wound about the at least one stator post and having a first end and an opposing second end, a coolant inlet housing defining an inlet passage, a coolant outlet housing defining an outlet passage, proximate to the coolant inlet housing, and wherein the coolant inlet passage and the coolant outlet passage define a coolant circuit configured to receive a supply of coolant to remove heat generated in the set of stator windings.
    Type: Grant
    Filed: March 24, 2017
    Date of Patent: August 13, 2019
    Assignee: GE AVIATION SYSTEMS LLC
    Inventors: Hao Huang, Xiaochuan Jia
  • Patent number: 10381896
    Abstract: A cooling device for a vehicle, having an inner housing with an inner cooling wall, and an outer housing which surrounds the inner housing, is spaced apart via a cooling gap and has an outer cooling wall. A cooling volume for passage of a cooling fluid is formed between the inner cooling wall and the outer cooling wall. The inner cooling wall and/or the outer cooling wall furthermore have channel walls for dividing the cooling volume and guiding the cooling fluid. At least one clamping device is arranged around the circumference of a circumferential wall of the outer housing for introducing a deformation force into the outer housing in order to reduce the cooling gap by deforming the outer housing.
    Type: Grant
    Filed: November 16, 2017
    Date of Patent: August 13, 2019
    Assignee: Dr. Ing. h.c. F. Porsche Aktiengesellschaft
    Inventor: Holger Hinrich
  • Patent number: 10361608
    Abstract: It includes an electrical rotating device, an electric power conversion device connected with the electrical rotating device, a housing that integrally houses the electrical rotating device and the electric power conversion device, and an attachment member that is attached to the housing, the electric power conversion device being attached thereto on an opposite side to the electrical rotating device. An electrically conductive connecting member connected with an electronic component that configures the electric power conversion device is attached to the attachment member in an electrically insulated state from the attachment member on an opposite side of the attachment member to the electrical rotating device. A cooling portion that cools the electronic component and the electrically conductive connecting member is provided on the attachment member on a side of the electrical rotating device.
    Type: Grant
    Filed: May 26, 2015
    Date of Patent: July 23, 2019
    Assignee: NISSAN MOTOR CO., LTD.
    Inventor: Kazuhiro Hasegawa
  • Patent number: 10361601
    Abstract: Disclosed herein is a rotor assembly, including a cylindrical housing coupled to an outer circumferential surface of a rotor body and configured to house a coil turn therein, a supporting unit disposed in the housing and configured to prevent the coil turn from being pushed in an axial direction of a rotor, and a vane ring coupled to one end of the housing and provided with blades guiding cooling fluid to the coil turn. The rotor assembly may include: coil turns each of which is formed by stacking conductors in a multilayer structure and includes a linear part interposed between teeth, and a curved part extending from the linear part and disposed on an outer surface of a spindle; first supporting blocks which are inserted into the curved part and disposed between the conductors; and a second supporting block which is disposed between the first supporting blocks.
    Type: Grant
    Filed: March 11, 2016
    Date of Patent: July 23, 2019
    Assignee: Doosan Heavy Industries Construction Co., Ltd
    Inventor: Kye Ha Hwang
  • Patent number: 10348146
    Abstract: A permanent magnet motor, generator or the like that is liquid cooled using glycol or similar fluid with the cooling applied directly in the winding slots of the stator and in self contained loops such that no adverse loops are formed.
    Type: Grant
    Filed: July 13, 2012
    Date of Patent: July 9, 2019
    Assignee: LCDRIVES CORP.
    Inventors: Russel Hugh Marvin, Thomas R. Johnson
  • Patent number: 10337513
    Abstract: A liquid pump has a housing with a suction connection, a pressure connection and a electric motor for rotationally driving a conveying device that has a suction inlet and pressure outlet which communicate with the suction connection and the pressure connection respectively. An electronic power unit for the electric motor is adjacent to the motor and extends transversely to the axis of rotation and is on the rear side of the partition wall of the housing. The suction inlet is arranged at a height smaller than an inner radius of an annular gap between the stator and rotor, whereas a rotor passage extends at a constant height, so that a liquid inducted by way of the suction connection is guided in part via the annular gap and undergoes a deflection at the partition wall, cooling the latter before it passes through the rotor passage to the suction inlet.
    Type: Grant
    Filed: December 9, 2016
    Date of Patent: July 2, 2019
    Assignee: FTE automotive GmbH
    Inventors: Alexander Reul, Markus Dirauf
  • Patent number: 10333362
    Abstract: Provided is an electric motor comprising: a stator comprising stator poles arranged radially and a rotor comprising rotor poles, each comprising: a substrate comprising a magnetically permeable material and at least a first magnet and a second magnet. The magnets can comprise a respective proximal end proximal to the stator and a respective distal end opposite the respective proximal end, and distal from the stator. A distance between respective proximal ends of the magnets can be equal to or greater than a distance between respective distal ends of the magnets. Each rotor pole also comprise first and second proximal cavities, each cavity extending from the respective proximal end of a magnet for a given length along about the circumferential direction and away from the proximal end of the other magnet. Sum of the lengths of the proximal cavities can be about equal to a width of each stator pole.
    Type: Grant
    Filed: October 2, 2015
    Date of Patent: June 25, 2019
    Assignee: ACCELERATED SYSTMES INC.
    Inventors: Tim Lambert, Robert Gordon Lankin, Stanley Baer
  • Patent number: 10312760
    Abstract: A permanent magnet motor, generator or the like that is liquid cooled using glycol or similar fluid with the means defining cooling passageways disposed directly in the winding slots of the stator between and in engagement with the windings and stator laminations.
    Type: Grant
    Filed: July 13, 2012
    Date of Patent: June 4, 2019
    Assignee: LCDRIVES CORP.
    Inventors: Russel Hugh Marvin, Thomas R. Johnson
  • Patent number: 10305352
    Abstract: Disclosed is a liquid filled electric motor to eliminate over-heating of direct drive motors and for preventing leakage of liquid from inside to the outside environment. The liquid filled electric motor is attached to the frame of a vehicle. The liquid filled electric motor includes a stationary axle attached to the frame of the vehicle, an angled hole configured on the stationary axle, a rotor for rotating around the stationary axle; a stator attached directly to the stationary axle, and one or more cables to energize the stator. The cables exit at an angle through the angled hole in the stationary axle to prevent capillary action for preventing leakage from inside to the outside environment. The level of the liquid is less than the full volume of the empty space in the electric motor.
    Type: Grant
    Filed: November 21, 2016
    Date of Patent: May 28, 2019
    Assignee: Falco eMotors Inc.
    Inventor: Rakesh K Dhawan
  • Patent number: 10291105
    Abstract: A cooling apparatus of a drive motor is disclosed. An exemplary embodiment of the cooling apparatus may include a flow passage through which coolant flows. The flow passage is formed in the motor housing. A coolant inflow portion and a coolant outflow portion are connected with the flow passage. At least one penetration hole is formed in the motor housing and connected with the flow passage. A seal member is engaged with the penetration hole to vary a cross-sectional area of the flow passage.
    Type: Grant
    Filed: December 14, 2016
    Date of Patent: May 14, 2019
    Assignee: Hyundai Motor Company
    Inventors: Dongyeon Han, Jungwoo Lee, Hyoungjun Cho
  • Patent number: 10291094
    Abstract: A motor frame is disclosed. According to an exemplary embodiment in the present disclosure, a motor frame includes a main frame including a component of a motor provided therein; and a front cover and a rear cover covering an open front surface and an open rear surface of the main frame, respectively, and having cores into which the component of the motor is inserted, respectively, in which a region between the main frame and the cores is asymmetrical in a vertical direction.
    Type: Grant
    Filed: August 1, 2016
    Date of Patent: May 14, 2019
    Assignee: Hyundai Electric & Energy Systems Co., Ltd.
    Inventors: Yun Bum Park, Kwang Jin Han, Jin Hyuk Yoo, Young Hoon Jung
  • Patent number: 10280924
    Abstract: A pump for fluids includes a pump housing, a power source enclosed within the housing, a drive shaft connected to the power source, at least one pump inlet arranged in the pump housing, a pump outlet arranged in the pump housing, a first impeller arranged within a first impeller chamber and rotated by the drive shaft, and a second impeller arranged within a second impeller chamber and rotated by the drive shaft. The pump is changeable between a first configuration in which the first and second impeller are arranged in parallel to provide a high pumping capacity, and a second configuration in which the first and second impeller are arranged in series to provide a pump with less pumping capacity.
    Type: Grant
    Filed: September 16, 2016
    Date of Patent: May 7, 2019
    Assignee: SULZER MANAGEMENT AG
    Inventor: Nils Hökby
  • Patent number: 10259310
    Abstract: A vehicle drive device that includes a body case that accommodates at least the rotary electric machine; an inverter case joined to the body case; and an inverter case cover joined to the inverter case; wherein an inverter housing that accommodates the inverter device is formed in a space enclosed by at least the inverter case; wherein a connection terminal electrically connecting the rotary electric machine and the inverter device is disposed in the inverter housing; wherein the case outer wall is formed by a first outer wall, a second outer wall, and the inverter case cover, the first outer wall being an outer wall of the body case, the second outer wall being an outer wall of the inverter case; and wherein a supply port and a discharge port for liquid refrigerant for cooling the inverter device are formed on the second outer wall.
    Type: Grant
    Filed: December 8, 2015
    Date of Patent: April 16, 2019
    Assignee: AISIN AW CO., LTD.
    Inventors: Hiromichi Agata, Tatsuyuki Uechi, Tomoyuki Suzuki
  • Patent number: 10250104
    Abstract: An electronic package adapted for connection to a rear frame member of an electric machine. The electronic package includes a support structure having opposite first and second axial ends spaced along a package central axis. A plurality of power electronics devices connected to the support structure and electronic control circuitry is carried by the support structure. The electronic control circuitry is substantially surrounded by and operatively connected to the power electronics devices. The control circuitry includes circuit board material having opposing substantially parallel sides, wherein the control circuitry comprises first and second control circuit portions respectively disposed on separate first and second circuit board material portions wherein the first and second circuit board material portions substantially coextend with distinct first and second imaginary planes, respectively. An electric machine employing such an electronic package is also disclosed.
    Type: Grant
    Filed: October 7, 2015
    Date of Patent: April 2, 2019
    Assignee: BORGWARNER INC.
    Inventor: Michael D. Bradfield
  • Patent number: 10247464
    Abstract: A sealed system for an appliance includes a compressor having a shell and lubrication oil disposed with the shell. A condenser in fluid communication with the compressor such that compressed refrigerant from the compressor flows to the condenser during operation of the compressor. The sealed system also includes a heat exchanger for cooling the lubrication oil during operation of the compressor.
    Type: Grant
    Filed: January 27, 2016
    Date of Patent: April 2, 2019
    Assignee: Haier US Appliance Solutions, Inc.
    Inventors: Thomas Robert Barito, Gregory William Hahn
  • Patent number: 10228198
    Abstract: Disclosed herein are devices, methods, and systems for heat exchange, comprising one or more multi-disk rotors, one or more finned thermal elements, and a cover, which, even without an external fan, are combined in one apparatus to form a directed movement of fluid and heat exchange. Additional embodiments comprise an additional circulation chamber, integrated with/within said apparatus and/or external fans and/or at least one baffle in a circulation chamber for further directing and intensifying a changing of temperature of fluid passing through the apparatus. A highly efficient heat exchange is achieved by a high temperature gradient near the heat transferring surface and by a high-volume pumping capability of the multi-disk fan. The devices, methods, and systems are particularly applicable in fields that require compactness and low noise levels during operation, such as air conditioning and CPU cooling.
    Type: Grant
    Filed: October 3, 2016
    Date of Patent: March 12, 2019
    Inventor: Aleksandr Reshetnyak
  • Patent number: 10224799
    Abstract: A cryocooler assembly for cooling a field winding of an electrical machine having an axis of rotation is provided. The assembly includes a cryocooler and a reservoir coupled in flow communication to the cryocooler and configured to contain a cooling agent. A flow assembly is coupled in flow communication to the reservoir. The flow assembly includes a first flow loop coupled in flow communication to the reservoir; a second flow loop coupled in flow communication to the reservoir; and a plurality of flow members coupled in flow communication to the first flow loop and the second flow loop and coupled to the field winding. Each flow member is configured to thermosiphon the cooling agent in a first state from the reservoir and in a second state to the reservoir.
    Type: Grant
    Filed: October 8, 2012
    Date of Patent: March 5, 2019
    Assignee: GENERAL ELECTRIC COMPANY
    Inventors: Ernst Wolfgang Stautner, Evangelos Trifon Laskaris, Kiruba Sivasubramaniam Haran, Ruben Jeevanasan Fair, Randy Scott Longtin, Suyu Hou, Fulton Jose Lopez
  • Patent number: 10224787
    Abstract: Disclosed is an improved life large electric generator comprising a rotor arranged along a centerline of the generator; a core arranged coaxially and surrounding the rotor; a plurality of stator windings arranged within the core; a stator frame arranged to fixedly support the core and rotationally support the rotor; a gas cooling system that circulates a cooling gas within the generator; a liquid cooling system that circulates a cooling liquid to cool the stator windings wherein the cooling ability of the liquid cooling system is a function of a required generator parameter; and a pressure boundary member that surrounds a plurality of the rotor and an entirety of the core and stator windings, the frame configured to operatively contain an internal pressure of two (2) bar relative to atmospheric pressure.
    Type: Grant
    Filed: November 11, 2015
    Date of Patent: March 5, 2019
    Assignee: SIEMENS ENERGY, INC.
    Inventors: Michael D. Garmon, Raul Ricardo Rico, Bobby A. Warren
  • Patent number: 10199905
    Abstract: A cooling medium supply/discharge device includes a cylindrical rotary casing which is rotatable with a rotary shaft of the rotor; a cylindrical stationary casing fixed such that the stationary casing extends inward relative to the rotary casing and coaxially with the rotary casing, the stationary and rotary casings being relatively rotatable; a first stationary cylindrical body which is inserted into the stationary casing such that the first stationary cylindrical body is not rotatable; a first rotary cylindrical body which is inserted into the first stationary cylindrical body with a gap such that the first rotary cylindrical body is rotatable together with the rotary shaft; a second stationary cylindrical body which is inserted into the first stationary cylindrical body such that the second stationary cylindrical body is not rotatable; and a second rotary cylindrical body which is inserted into the first rotary cylindrical body and rotatable together with the rotary shaft.
    Type: Grant
    Filed: October 30, 2013
    Date of Patent: February 5, 2019
    Assignee: KAWASAKI JUKOGYO KABUSHIKI KAISHA
    Inventors: Katsuya Umemoto, Satoru Takao, Kiyoshi Aizawa
  • Patent number: 10163546
    Abstract: A field control device for a high-voltage system includes a shielding element for field control, which can be connected to an electrical conductor of the high-voltage system in an electrically conductive manner and, when connected to the conductor, at least partly delimits a weak-electric-field spatial region. A cooling body, which can be connected to the electrical conductor in a thermally conductive manner and which is disposed within the weak-field spatial region, has an outer surface area which is greater than an outer surface area of the shielding element. A high-voltage system having the field control device is also provided.
    Type: Grant
    Filed: November 1, 2016
    Date of Patent: December 25, 2018
    Assignee: Siemens Aktiengesellschaft
    Inventors: Michael Hofstetter, Jochen Schaefer, Andreas Philipp
  • Patent number: 10145381
    Abstract: A centrifugal compressor includes a driving shaft (2) which is rotationally driven, a driving gear (11) which is connected to the driving shaft (2), a driven gear (12, 13) to which rotation of the driving gear (11) is transmitted, a driven shaft (3) which extends toward both end sides in a center axis direction of the driven gear (12, 13), a first compression portion (41) which is provided on a first end portion side in the center axis direction of the driven shaft (3), a second compression portion (42) which is provided on a second end portion side in the center axis direction of the driven shaft (3), and a pressure adjustment portion (7) which uniformly adjusts a pressure of a space of a discharge side of a fluid in the first compression portion (41) and a pressure of a space of a discharge side of a fluid in the second compression portion (42).
    Type: Grant
    Filed: January 23, 2014
    Date of Patent: December 4, 2018
    Assignee: MITSUBISHI HEAVY INDUSTRIES COMPRESSOR CORPORATION
    Inventors: Hiroyuki Miyata, Hideki Nagao
  • Patent number: 10141798
    Abstract: An electrical machine includes housing surrounding a stator laminated core and a stator winding. Stator core support rings are arranged between the housing and the stator laminated core and radially surround the stator laminated core, with a cavity being formed between the housing, the stator laminated core and the stator core support rings. The stator laminated core has a cooling channel which is fluidically coupled with the cavity via a channel entry arranged centrally in the middle of the stator laminated core, thereby creating in conjunction with the channel entry a T-shaped form of the cooling channel so that a stream of coolant is not heated over an entire length of the stator laminated core, but only over a shorter stretch as a result of the T-shaped form.
    Type: Grant
    Filed: March 4, 2016
    Date of Patent: November 27, 2018
    Assignee: Siemens Aktiengesellschaft
    Inventors: Christoph Rogginger, Günther Winkler
  • Patent number: 10125585
    Abstract: A pumping system configured to be deployed in a wellbore includes a motor that is filled with a motor lubricant oil, a production pump driven by the motor, a heat exchanger and an internal oil circulation system contained within the pumping system. The internal oil circulation system circulates the motor lubricant oil between the motor and the heat exchanger.
    Type: Grant
    Filed: March 12, 2016
    Date of Patent: November 13, 2018
    Assignee: GE Oil & Gas ESP, Inc.
    Inventors: Raul Alejandro Oyarzun, Ricardo Hector Teves, Martin Russo, Juan Cruz Pires
  • Patent number: 10106237
    Abstract: A submersible thruster, and methods of optimizing and using same, including selecting a motor with an efficiency of greater than 75 percent when operated at 250 rpm immersed in a pressure-resistant fluid, the motor having a drive shaft with a rotor and a stator matched to the rotor, the rotor and the stator being immersed in the pressure-resistant fluid and being separated by a gap less than or equal to 1 mm. The motor is disposed in a housing to isolate the motor components from a liquid environment. A rear portion of the drive shaft extends through a low-friction shaft seal beyond the housing to drive at least one propeller within the liquid environment. Movement of the drive shaft is constrained to a radial and axial play each of less than 0.75 mm. The method further includes operating the motor at less than 50 percent of peak power, wherein said thruster operates at greater than 30 percent end-to-end thrust efficiency within the liquid environment.
    Type: Grant
    Filed: June 24, 2015
    Date of Patent: October 23, 2018
    Assignee: WOODS HOLE OCEANOGRAPHIC INSTITUTION
    Inventors: Carl Kaiser, Andrew Billings
  • Patent number: 10098266
    Abstract: Provided is a deionized-water cooling system having a main circuit for cooling electrical equipment. The system includes a deionizer circuit including (i) a deionizer for producing deionized water and (ii) a throttle and a main pumping system configured for circulating (i) the deionized water within the main circuit at a first flow rate and (ii) the water flow within the deionizer at a second flow rate. The circulating occurring when the electrical equipment is operating. The electrical equipment is configured for receiving power from a primary power source. Also included is a secondary pumping system configured for (i) receiving power from a secondary power source, (ii) circulating the deionized water within the main circuit, and (iii) circulating the water flow within the deionizer at the second flow rate via the throttle when the electrical equipment is inoperable.
    Type: Grant
    Filed: June 6, 2012
    Date of Patent: October 9, 2018
    Assignee: GE Energy Power Conversion Technology Limited
    Inventors: Henri Baerd, Guillaume Godfroy
  • Patent number: 10090719
    Abstract: A rotor for a reluctance motor having a laminate stack of layers is disclosed. Each layer has at least one magnetically-conductive rotor lamination, and in each layer a plurality of flux-conducting sections are formed by the at least one rotor lamination, which flux-conducting sections are separated from one another by a nonmagnetic region. The invention addresses the problem of enabling a high torque and a high speed. For this purpose, an insert disk is arranged between at least two of the layers, connected in each case to at least two flux-conducting sections of one of the layers or both of the layers between which said insert disk is arranged and, as a result, connects said flux-conducting sections to one another beyond the nonmagnetic region located there between.
    Type: Grant
    Filed: February 28, 2014
    Date of Patent: October 2, 2018
    Assignee: Siemens Aktiengesellschaft
    Inventors: Klaus Büttner, Klaus Kirchner, Matthias Warmuth, Nico Wolf
  • Patent number: 10072468
    Abstract: Cooling systems and methods for controlling the temperature of motors of gas compression systems of chillers are disclosed. Certain systems utilize a centrifugal, two stage compressor equipped with a motor between the stages. The cooling system provides a low velocity refrigerant spray on at least one or both ends of the motor without requiring additional pumping energy from the motor to deliver the refrigerant spray.
    Type: Grant
    Filed: June 8, 2015
    Date of Patent: September 11, 2018
    Assignee: Trane International Inc.
    Inventors: Richard Heiden, Chuck Roesler
  • Patent number: 10069375
    Abstract: Embodiments of the invention provide an electric machine module. The module can include a housing that can define a machine cavity. The housing can include a sleeve member that can include a first axial sleeve member comprising a first flange, a second flange, and first recess at least partially defined between the first flange and the second flange. The sleeve member can also include a second axial sleeve member comprising a third flange, a fourth flange, and a second recess at least partially defined between the first flange and the second flange. The first axial sleeve member can be coupled to the second axial sleeve member to form the sleeve member and so that the first recess and the second recess form a coolant jacket. An electric machine can be positioned within the machine cavity so that it is substantially circumscribed by a portion of the coolant jacket.
    Type: Grant
    Filed: May 2, 2012
    Date of Patent: September 4, 2018
    Assignee: BORGWARNER INC.
    Inventors: Bradley D. Chamberlin, James J. Ramey
  • Patent number: 10044246
    Abstract: Disclosed is a variable performance large electric generator, comprising, a rotor arranged along a centerline of the generator; a core arranged coaxially and surrounding the rotor; a plurality of stator windings arranged within the core; a stator frame arranged to fixedly support the core and rotationally support the rotor; a gas cooling system that circulates a cooling gas within the generator; a liquid cooling system that circulates a cooling liquid to cool the stator windings wherein the cooling ability of the liquid cooling system is a function of a required generator parameter; a pressurizing system that operatively pressurizes the cooling gas to a maximum pressure of two (2) bar relative to atmospheric pressure, wherein the pressurizing system continuously determines the cooling gas pressure based upon a required generator parameter; and a control system that controls the cooling ability of the liquid cooling system in conjunction with the cooling gas pressure.
    Type: Grant
    Filed: November 11, 2015
    Date of Patent: August 7, 2018
    Assignee: SIEMENS ENERGY, INC.
    Inventors: Michael D. Garmon, Raul Ricardo Rico, Bobby A. Warren
  • Patent number: 10036582
    Abstract: A centrifugal compressor for a refrigeration system is disclosed. The centrifugal compressor includes an electric motor, which includes a rotor and a stator. The compressor further includes a housing enclosing the electric motor, a stator cooling passage provided within the housing, and a rotor cooling passageway provided within the housing. The rotor cooling passageway is independent of the stator cooling passageway.
    Type: Grant
    Filed: June 12, 2013
    Date of Patent: July 31, 2018
    Assignee: DANFOSS A/S
    Inventors: William Turner Thornton, Joost Brasz
  • Patent number: 10038351
    Abstract: An electric machine for an electrified vehicle is provided. The electric machine may include a stator, a ring plate, an encasement, and a fastener. The stator defines a cavity, a stator recess about a portion of the cavity, and a stator aperture. The stator may include windings disposed within and partially protruding out of the cavity. The ring plate may be sized for disposal within the stator recess, and may define a tab and a plate aperture for alignment with the stator aperture. The encasement may define a key sized for engagement with the tab to secure the encasement to the ring plate, and a closed coolant channel. The fastener may be sized for insertion within the apertures to secure the plate to the stator. The stator, ring plate, and encasement may be arranged with one another such that the partially protruding windings are disposed within the closed coolant channel.
    Type: Grant
    Filed: March 17, 2016
    Date of Patent: July 31, 2018
    Assignee: Ford Global Technologies, LLC
    Inventors: Prasad Dev Hanumalagutti, Michael W. Degner, Franco Leonardi
  • Patent number: 10036404
    Abstract: A turbo machine system having an intake structure for air inflow and a cooling structure for a driving motor, and including a driving unit having a rotor and a stator, a compression unit having an impeller that rotates in conjunction with the rotor, guide piping that guides driving unit cooling fluid that flows into the driving unit and is discharged to the outside through the inside of the driving unit and into the compression unit, and external fluid inflow piping that is provided on one side of the guide piping and is provided to communicate with the guide piping, the external fluid inflow piping guiding the external fluid by the differential pressure between the end of the external fluid inflow piping and the inside of the guide piping so as to flow into the guide piping.
    Type: Grant
    Filed: September 12, 2013
    Date of Patent: July 31, 2018
    Assignee: BOGE KOMPRESSOREN Otto Boge GmbH & Co. KG
    Inventor: Heonseok Lee
  • Patent number: 10020706
    Abstract: An electric machine (1) and to a method for producing the machine (1), including a housing (2) and a stator (3) accommodated therein, as well as at least one rotor (4) arranged radially inside the stator (3), a plastic body (7) that at least radially surrounds the outside of a soft-magnetic core (5) of the stator (3), and a cooling device (10) located between the stator (3) and the housing (2) is provided. In order to improve the cooling device (10), at least one recess (11) that conveys a cooling medium is created between the housing (2) and the stator (3) at least partially in the outer circumferential surface of the plastic body (7).
    Type: Grant
    Filed: January 16, 2014
    Date of Patent: July 10, 2018
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventors: Michael Kobes, Maria Holland, Achim Weber, Wolfgang Hill
  • Patent number: 10014740
    Abstract: The present disclosure relates to a chamber for housing strands of a stator bar for electric machines. The problem to provide a reliable chamber for a stator bar of an electric machine is solved with a stator bar chamber engaging a stator bar in an electric machine. The chamber includes a number of hollow conductors in a first straight part of the chamber, a number of hollow conductors in a second tapered part, and a number of hollow conductors and adjacent solid conductors in a third straight part. The first part of the chamber is closed with a ring mounted at the edge of the first part and a nipple adapted to the ring.
    Type: Grant
    Filed: May 19, 2015
    Date of Patent: July 3, 2018
    Assignee: GENERAL ELECTRIC TECHNOLOGY GMBH
    Inventors: Janusz Bialik, Laurent Didier Jean Clemence, Duncan Madle, Jean-Noel Simon, Cristian Ana
  • Patent number: 9985489
    Abstract: A separated coolant circulation structure for a water-cooled power generator includes a cooling circulation channel for a stator bar to cool heat of a stator bar winding, and a cooling circulation channel for a connector ring to heat of a connector ring, wherein the cooling circulation channel for the stator bar and the cooling circulation channel for the connector ring form separate coolant supply paths to improve cooling efficiency and reduce a pump load.
    Type: Grant
    Filed: February 23, 2015
    Date of Patent: May 29, 2018
    Assignee: DOOSAN HEAVY INDUSTRIES & CONSTRUCTION CO., LTD.
    Inventor: Hakjae Lee
  • Patent number: 9979260
    Abstract: The invention relates to a method for liquid cooling of an electric motor of inner rotor type having a rotor of hub type and a stator provided with windings. The method includes supplying a cooling liquid for cooling to at least one end of the hub of the rotor, feeding supplied cooling liquid at least radially in the hub by means of the rotation of the hub, and by means of the rotation of the rotor throwing thus fed cooling liquid towards the stator. The invention also relates to a device and a platform to practice the method.
    Type: Grant
    Filed: October 24, 2013
    Date of Patent: May 22, 2018
    Assignee: BAE Systems Hägglunds Aktiebolag
    Inventors: Anders Söderholm, Viktor Lassila
  • Patent number: 9964213
    Abstract: The invention relates to a device for sealing a pump of a nuclear power station. Said includes: a mechanical packing and a fluid header. The header includes: a first plurality of surfaces that cooperate with said mechanical packing; a second plurality of surfaces that are designed to cooperate with a pump housing; and a plurality of ducts. The plurality of ducts form, in an operating state, a first fluid circuit that constitutes a thermal barrier between the first plurality of surfaces and the second plurality of surfaces, and a second fluid circuit that supplies fluid to said mechanical packing in order to cool it.
    Type: Grant
    Filed: December 5, 2014
    Date of Patent: May 8, 2018
    Assignee: GENERAL ELECTRIC TECHNOLOGY GMBH
    Inventors: Nicolas Nebout, Guillaume Becouarn
  • Patent number: 9948157
    Abstract: A containing casing for a stator of an electric machine defines, around said axis, a compartment to house the stator. A first radially inner part and a second radially outer part are coupled to one another and define together at least one duct surrounding the axis for the passage of a cooling fluid. Said duct comprises, in turn, a plurality of first sections and a plurality of second sections, which are distributed around the axis alternated with one another. The first sections are arranged around the axis with an arrangement that supports the motion of the fluid around the axis. The second sections are transverse to the first sections and at least partially obtained inside respective protuberances of the first radially inner part, which project towards the inside of the compartment. A space for the insertion of radially projecting portions of electric windings of the stator is defined between two consecutive protuberances around the axis.
    Type: Grant
    Filed: January 19, 2015
    Date of Patent: April 17, 2018
    Assignee: LUCCHI R. ELETTROMECCANICA SRL
    Inventor: Giorgio Lucchi
  • Patent number: 9941766
    Abstract: A power connector for an electric motor is disclosed. The power connector includes a flange, a conductor rod, and an insulation sleeve. The conductor rod includes a first portion extending in a first direction from the flange and a second portion extending from the flange in a second direction, opposite the first direction. The second portion includes a lead wire connection end distal to the flange. The insulation sleeve covers the second portion from the flange to the lead wire connection end. The insulation sleeve includes a sleeve outer surface, and a sealing rib extending outward from the sleeve outer surface.
    Type: Grant
    Filed: August 25, 2014
    Date of Patent: April 10, 2018
    Assignee: Solar Turbines Incorporated
    Inventors: David B. Jahnz, Jason Wing-Bin Fong, Lei Zhu
  • Patent number: 9941831
    Abstract: A control system for a switched reluctance (SR) motor includes a Direct Current (DC) power source, and an inverter. The control system includes a user interface configured to enable an operator to specify a desired torque output. The control system further includes a controller which converts a DC current from the Alternating Current (AC) supplied to the SR motor by the inverter. The controller estimates an actual power output generated by the SR motor based on a DC voltage supplied by the DC power source to the inverter, and the converted DC current. The controller estimates an actual torque output based on the actual power output and a rotational speed of the SR motor. The controller compares the actual torque output and a desired torque output to calculate a torque error. The controller adjusts a torque output limit and the rotational speed of the SR motor.
    Type: Grant
    Filed: June 9, 2017
    Date of Patent: April 10, 2018
    Assignee: Caterpillar Inc.
    Inventors: Jason L. Miller, Ernesto Inoa, Jesse Gerdes, Alexander C. Crosman, III, Carlos E. Nino-Baron, Thomas Michael Sopko, Jr., Jackson Wai, Ahmed Khalil