US1448700A - Liquid-cooled electric machine - Google Patents

Liquid-cooled electric machine Download PDF

Info

Publication number
US1448700A
US1448700A US283442A US28344219A US1448700A US 1448700 A US1448700 A US 1448700A US 283442 A US283442 A US 283442A US 28344219 A US28344219 A US 28344219A US 1448700 A US1448700 A US 1448700A
Authority
US
United States
Prior art keywords
liquid
rotor
cooling
windings
stator
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US283442A
Other languages
English (en)
Inventor
Seidner Michael
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of US1448700A publication Critical patent/US1448700A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K9/00—Arrangements for cooling or ventilating
    • H02K9/19—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
    • H02K9/197—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil in which the rotor or stator space is fluid-tight, e.g. to provide for different cooling media for rotor and stator
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
    • H02K3/22—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors consisting of hollow conductors
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
    • H02K3/24—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors with channels or ducts for cooling medium between the conductors
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K9/00—Arrangements for cooling or ventilating

Definitions

  • MICHAEL SEIDNEB F BUDAPEST, UNGBY.
  • My invention relates to new and useful improvements in liquid-cooled electric machines.
  • the primary object of m invention is to eliminate the disturbing e ect of the rotor or rotating member caused on the one hand by the centrifugal force, and on the other hand by the relative motion between the rol tor orvrotating member and the stator or stationary member.
  • Another object of m invention is to ro.-v
  • vide means which wil make liquid-coo ing poible ⁇ for both members of high-speed electric machines, or for the outer member of such machines, hitherto it being only possible to cool the armature of such machinesby means of liquid by fitting the whole armature with a liquid-tight enclosure.
  • a further important object of the invention resides in the provision of a very eilicacious direct cooling of the conductors or windings by conducting the cooling liquid along the conductors or windings in .immediate contact with the same.
  • Fig. 1 is a vertical ,axial or longitudinal section of a turbogenerator embodying my invention.
  • Fig. 2 is a vertical axial or longitudinal section of a turbogenerator showing a modified form oi my invention. 'F igs. 3,
  • Fig. 9 is a vertical longitudinal or axial section of a solid rotor-body showing a preferred einbodiment of the invention:
  • Fig. 10 is a vertical transversal section of the saine rotorbody.
  • Figs. 11 and 12 show details in a larger scale to illustrate the arrangement of directly cooled windings in the slots of a laminated stationary member within pipes preventing the escape of the liquid between the laminations.
  • the usual side shields 1 and 2 of fthe stationary member one on each side of the machine, are connected by a tube 3 tightly fastened on the inner periphery of said shields and pass ing through the air-gap between rotor and stator. is fitted asa mantle over the rotor, forming with disks 7 andV 8 fitting over lthe shaft parts 5 and 6, a liquid-tight enclosure for the whole rotor.
  • the rotating as well as the stationary member each are formed as an individual tightly closed AV second tube l4 within - ⁇ the former lll@ ing medium.
  • the liquid-filled inner space ofthe stator casing or shell is divided by partitions 61 arranged in alinement with the end disks 11, 12 and protruding inwardly from the outer mantle 62 of the casing or shell, into the annular chambers 22, 51 and 23.
  • the bottom of the front chamber 22 is provided with an inlet 49 to supply fresh cooling liquid, and the top of the middle chamber 5l is provided with an outlet 52 for the escape of the heated medium.
  • a passage 50 is formed at the bottom.
  • Inlet and outlet passages member are created by axial borings 53 an( 56 of the spindles 5 and 6, respectively, each axial boring communicating through radial ⁇ borings 54, with the end chambers 24, 25 of the rotor-shell.
  • the iron cores 13 and 26 are formed with axial notches 27, 28, 29, borings 30, longitudinal holes 31 etc. (Fig. 8), or with gaps 33 (Fig. 1) running perpendicularly to the shaft, through which the cooling medium is led from the one liquid-filled space to the other.
  • the latter are arranged in the slots 36 and 37 of the iron cores so as to allow the free passage of the cooling liquid.
  • Such passage may be aiorded by suitable grooves 27, 28 in the slots 38 (Fig. 8), slots or openings 39, 40 in the conductor material itself (Figs. 3 and 4), pipes 41 inserted between the conductors. within the insulation (Fig. 6), interstices 42, 43 and 44 between the several conductors ⁇ laced wighin the slot insulation (Figs.
  • Machines with an air-gap not wide enough for the reception of the two tubes 3 and 4, or in which the diameter of the rotating member would become too large on account of the very high circumferential speed may have, instead of a sole tube for the rotor and stator extending over the whole length of the machine, two such tubes extending only over the coil heads.
  • a sole tube for the rotor and stator extending over the whole length of the machine, two such tubes extending only over the coil heads.
  • Fig. 2 Such arrangement is shown in Fig. 2; the inner edges of the ⁇ tubes 9 and 10, which are used instead of the sole tube 3 (Fig. v1), are
  • the rotor ends may be closed in the same manner by tubes fitted on the one hand to the disks and 8 (Fig. 1) and on the other hand to the end disks 14 and 15 of the rotor-y body, or, as illustrated in Fig. 2, by hood- 1
  • hood- 1 The latter have,
  • .48 are made of sages mesmo like shields 16 and 17. It is understood that the tubes 9 and 10 may be made wlth the end shields 1 and 2, respectively, of one solid piece. rIhe Various vorms Just described may also be combined 'for the stationary and rotating member as desired.
  • the course of the cooling medium through the machine is the following.
  • inlet 49 space 22, axial openings of the laminations, space 23, passage 50, space 51, gaps 33, outlet 52.
  • rotor shaft borings 53 and 54 space 24, axial slots and openings of the iron body, space 25, shaft borings 55' and 56.
  • the liquid leaving the machine is led into a cooling apparatus before beingused again.
  • Figs. 9 and 10,11 have shown a solid rotating member of a turbogenerator having its end spaces for the cooling liquid closed by the shaft-anges 57, 58.
  • the slots 60 for the windings 59 are constructed as closed borings of the iron body which, if interstices are provided between the several conductors or between these and the slot walls, may be used without more ado as pasfor the liquid cooling medium so that the insertion of particular pipes, as in Figs. 11 and 12, becomes superfluous.,4
  • each of the two embers of the machine may be furnished wit-ifilftwo or more separate casings or shells without departing from the spirit of the invention.
  • the casings containing the cooling liquid so as to'embrace the whole stationary or rotating member, I do not wish to be limited to'this simple and preferred embodiment of the invention, but the liquid-filled casing or several casings may, if desired, embrace only such particular parts ofthe one or other member, elusive of the pertinent a more intensive cooling.
  • a liquid-cooled electric machine consisting of a rotor and a stator both with windings
  • the combination of a non-laminated rotor formed as a shell, and adaptedto have cooling liquid passed therethrough in proximity, ⁇ to the windings to carry olf the heat produced by the current in the latter, with stationary means to form a liquidftight inclosure embracing5 the stator together with its windings, said stator having its own secluding walls for its liquid-containing spaces in front of the adjacent periphery of the rotor so as to prohibit the liquid coo ing the stator from coming into contact with the rotor.
  • a solid rotor-core carrying its windings in closed longitudinal ducts, flanged shafts attached to said rotor-core at both ends thereof, their flanges covering the end-connections of the windings, shaft-ducts forming inlet and outlet passages for-a liquid cooling medium, recesses on the inner surface of the flanges for the reception and distribution of the cooling liquid in contact with the end-connections of the winding which only partly fill said longitudinal ducts of the rotor-core to establish communication for the cooling liquid between said recesses, with sta tionary means to form a liquid-tight inclosure embracing the stator together with'its windings and having its own peripheral walls in front of the adjacent periphery of the rotor so as to prohibit the liquid cooling the stator from coming into contact with the rotor.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Motor Or Generator Cooling System (AREA)
US283442A 1917-12-29 1919-03-18 Liquid-cooled electric machine Expired - Lifetime US1448700A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE337561T 1917-12-29

Publications (1)

Publication Number Publication Date
US1448700A true US1448700A (en) 1923-03-13

Family

ID=6221596

Family Applications (1)

Application Number Title Priority Date Filing Date
US283442A Expired - Lifetime US1448700A (en) 1917-12-29 1919-03-18 Liquid-cooled electric machine

Country Status (6)

Country Link
US (1) US1448700A (fr)
AT (1) AT97598B (fr)
CH (1) CH92265A (fr)
DE (1) DE337561C (fr)
FR (1) FR543794A (fr)
GB (1) GB172015A (fr)

Cited By (55)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE748606C (de) * 1937-09-21 1944-11-08 Anordnung der Lueftungskanaele in den aktiven Eisenteilen elektrischer Maschinen, insbesondere mit grossem Durchmesser
US2497650A (en) * 1945-12-28 1950-02-14 Gen Electric Dynamoelectric machine
US2632092A (en) * 1949-06-09 1953-03-17 Ohio Crankshaft Co Means and method for high-frequency induction heating
US2634375A (en) * 1949-11-07 1953-04-07 Guimbal Jean Claude Combined turbine and generator unit
US2722616A (en) * 1952-04-18 1955-11-01 Westinghouse Electric Corp Evaporative cooling system for dynamo-electric machines
US2727161A (en) * 1951-12-12 1955-12-13 Vickers Electrical Co Ltd Construction of dynamo electric machines
US2735026A (en) * 1956-02-14 moerk
US2746269A (en) * 1955-03-17 1956-05-22 Trane Co Plural stage refrigerating apparatus
US2768511A (en) * 1955-03-21 1956-10-30 Trane Co Motor compressor cooling in refrigerating apparatus
US2770106A (en) * 1955-03-14 1956-11-13 Trane Co Cooling motor compressor unit of refrigerating apparatus
US2791308A (en) * 1953-01-02 1957-05-07 Vickers Inc Magnetic field responsive coupling device with cooling means
US2862119A (en) * 1955-12-14 1958-11-25 Westinghouse Electric Corp Liquid-cooled dynamoelectric machine
DE1058618B (de) * 1954-07-01 1959-06-04 Westinghouse Electric Corp Hermetisch abgeschlossene, zur Foerderung eines Mediums hoeherer Temperatur geeignete elektrische Motorpumpe
US2898484A (en) * 1952-01-19 1959-08-04 Krastchew Christoslaw Refrigeration cooling of electrical machines
US2970232A (en) * 1958-10-21 1961-01-31 Gen Electric Conductor-cooled generator
US2994004A (en) * 1958-02-19 1961-07-25 Westinghouse Electric Corp Sealed motor pump unit
US3131321A (en) * 1962-04-23 1964-04-28 Gen Electric Liquid-cooled rotor for a dynamoelectric machine
US3240967A (en) * 1959-07-31 1966-03-15 Krastchew Christoslaw Cooling arrangement for electric machines
US3510700A (en) * 1969-02-24 1970-05-05 Nikolai Grigorievich Grinchenk Device for feeding coolant to hollow conductors of stator bar winding in electric machines
US3629628A (en) * 1970-07-06 1971-12-21 Gen Motors Corp Cooling arrangement for a squirrel cage rotor assembly
US3675056A (en) * 1971-01-04 1972-07-04 Gen Electric Hermetically sealed dynamoelectric machine
US4498024A (en) * 1982-04-23 1985-02-05 Regie Nationale Des Usines Renault Synchronous electrodynamic machine with permanent magnets and cooled by a liquid
US5365132A (en) * 1993-05-27 1994-11-15 General Electric Company Lamination for a dynamoelectric machine with improved cooling capacity
US6288460B1 (en) 1999-11-03 2001-09-11 Baldor Electric Company Fluid-cooled, high power switched reluctance motor
US6489697B1 (en) * 1999-08-26 2002-12-03 Honda Giken Kogyo Kabushiki Kaisha Rotating electrical machine with improved circulating path for coolant
US20040066098A1 (en) * 2002-10-04 2004-04-08 Doherty Kieran P.J. High speed generator with the main rotor housed inside the shaft
US20050151429A1 (en) * 2002-08-21 2005-07-14 Yasuji Taketsuna Motor for vehicle
US20070138878A1 (en) * 2005-12-20 2007-06-21 Honeywell International, Inc. System and method for direct liquid cooling of electric machines
US20070228847A1 (en) * 2006-03-30 2007-10-04 Korea Fluid Machinery Co., Ltd. High speed electric motor
US20080197724A1 (en) * 2007-02-16 2008-08-21 Rolls-Royce Plc Cooling arrangement of an electrical machine
US20100239441A1 (en) * 2007-05-09 2010-09-23 Siemens Aktiengesellschaft Compressor system for underwater use in the offshore area
US20110285221A1 (en) * 2010-05-21 2011-11-24 Remy Technologies, L.L.C. Stator Winding Assembly and Method
US20120161556A1 (en) * 2010-12-28 2012-06-28 Toyota Jidosha Kabushiki Kaisha Superconducting electric motor
CN102742129A (zh) * 2009-12-16 2012-10-17 智能电机股份公司 电机、用于该电机的转子及其制造方法
US20130002067A1 (en) * 2011-06-30 2013-01-03 Bradfield Michael D Electric Machine Module Cooling System and Method
US20130140924A1 (en) * 2011-12-06 2013-06-06 Dale Glubrecht Electric machine module cooling system and method
US20130207395A1 (en) * 2012-02-13 2013-08-15 Ge Aviation Systems Llc Aircraft engine starter/generator
US20130285487A1 (en) * 2010-10-18 2013-10-31 Lappeenrannan Teknillinen Yliopisto Stator of an electrical machine and an electrical machine
WO2012085280A3 (fr) * 2010-12-23 2014-04-03 Avl Trimerics Gmbh Machine électrique pourvue d'une gaine et procédé de fabrication de ladite machine
WO2014152624A3 (fr) * 2013-03-14 2015-11-05 Baldor Electric Company Échangeur thermique à microcanaux pour un stator de machine électrique doté d'un collecteur d'alimentation
US9362788B2 (en) 2013-03-14 2016-06-07 Baldor Electric Company Micro-channel heat exchanger integrated into stator core of electrical machine
EP3154158A1 (fr) 2015-10-09 2017-04-12 AVL List GmbH Frein moteur à hystérésis
US20180054094A1 (en) * 2016-08-17 2018-02-22 Atieva, Inc. Motor Cooling System Utilizing Axial Cooling Channels
WO2018167294A1 (fr) * 2017-03-17 2018-09-20 Siemens Aktiengesellschaft Stator à refroidissement d'enroulement pour une machine électrique
US10128701B2 (en) 2016-08-17 2018-11-13 Atieva, Inc. Motor cooling system utilizing axial cooling channels
US10158263B2 (en) 2016-08-17 2018-12-18 Atieva, Inc. Motor cooling system utilizing axial cooling channels
CN111416456A (zh) * 2019-01-07 2020-07-14 奥迪股份公司 用于电机的液冷式转子
US10903701B2 (en) 2016-08-17 2021-01-26 Atieva, Inc. Motor cooling system utilizing axial cooling channels
US20220140698A1 (en) * 2020-11-05 2022-05-05 Toyota Jidosha Kabushiki Kaisha Cooling structure for rotary electric machine
US11462957B2 (en) 2020-05-11 2022-10-04 Atieva, Inc. Motor cooling system utilizing axial coolant channels
US11462958B2 (en) 2020-05-11 2022-10-04 Atieva, Inc. Stator-integrated manifold assembly to supply coolant to axial coolant channels
US11535097B2 (en) 2020-05-11 2022-12-27 Atieva, Inc. Motor cooling system utilizing axial coolant channels
DE102021133029A1 (de) 2021-12-14 2023-06-15 Schaeffler Technologies AG & Co. KG Stator
US20240401693A1 (en) * 2023-05-31 2024-12-05 Fca Us Llc Lubrication cooling system for an electric drive module and efficient thermal management
US12463481B2 (en) * 2022-06-28 2025-11-04 Dr. Ing. H. C. F. Porsche Ag Rotor of an electric motor having a cooling device and a method for manufacturing a rotor of an electric motor having a cooling device

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE951463C (de) * 1942-04-28 1956-10-31 Siemens Ag Kuehlung elektrischer Maschinen
DE924816C (de) * 1948-10-02 1955-03-07 Siemens Ag Elektrische Maschine mit fluessigkeitsgekuehltem Laeufer
DE928056C (de) * 1950-07-15 1955-05-23 Siemens Ag Elektrische Maschine geschlossener Bauart mit Rueckkuehlvorrichtung
DE939392C (de) * 1951-04-28 1956-02-23 Demag Zug Gmbh Rollgangsmotor
DE974822C (de) * 1951-06-26 1961-05-04 Emu Unterwasserpumpen G M B H Schlammpumpe
DE948714C (de) * 1951-09-28 1956-09-06 Westinghouse Electric Corp Einrichtung zur Kuehlung der Statorwicklungen von Hochspannungs- Hochleistungs- Turbo-Generatoren
BE516189A (fr) * 1951-12-12
DE1014215B (de) * 1952-03-10 1957-08-22 Licentia Gmbh Fluessigkeitsgekuehlte Laeuferwicklung fuer elektrische Maschinen
DE896086C (de) * 1952-04-04 1953-11-09 Brown Elektrische Maschine, insbesondere Generator hoher Drehzahl mit je einem getrennten, gasdicht abgeschlossenen Raum fuer den Staender und den Laeufer
DE1026409B (de) * 1952-09-24 1958-03-20 Siemens Ag Aus mehreren elektrisch in Reihe geschalteten Windungen bestehender innengekuehlter Leiter fuer elektrische Maschinen
DE1105979B (de) * 1953-04-15 1961-05-04 Siemens Ag Geschlossene, oberflaechengekuehlte elektrische Maschine
DE973696C (de) * 1954-02-24 1960-05-05 Siemens Ag Gitterstab fuer elektrische Maschinen
DE975389C (de) * 1954-05-01 1961-11-16 Siemens Ag Gitterstab fuer elektrische Maschinen
DE1118343B (de) * 1958-04-28 1961-11-30 Zd Y V I Fluessigkeitsdichte Kapselung des gesamten Laeufers bei der direkten Fluessigkeitskuehlung der Laeuferwicklungen elektrischer Maschinen
DE1180832B (de) * 1959-08-18 1964-11-05 Gen Electric Dicht gekapselter fluessigkeitsdurchstroemter Laeufer fuer elektrische Maschinen
DE1275671B (de) * 1961-11-30 1968-08-22 Marcel Baylac Fluessigkeitsgekuehlter Rotor eines Turbogenerators
DE1199389B (de) * 1963-09-27 1965-08-26 Siemens Ag Kuehlmittelkreislauf fuer Laeufer elektrischer Maschinen, insbesondere Turbogeneratoren, mit direkt fluessigkeitsgekuehlter Wicklung, bei der ein fluessiges Medium zur Waermeabfuhr in den Hohlleitern zur Verdampfung gebracht wird
DE3932481A1 (de) * 1989-09-28 1991-04-11 Magnet Motor Gmbh Elektrische maschine mit fluidkuehlung
DE4138268A1 (de) * 1991-11-21 1993-05-27 Klein Schanzlin & Becker Ag Elektromotor
DE102004018525A1 (de) * 2004-04-14 2005-11-17 Voith Turbo Gmbh & Co. Kg Wicklungstragende Einheit
DE102005003476B4 (de) * 2005-01-25 2014-11-27 Johann NEISZER Spaltrohrmotor mit geschlossenem Kühlsystem
CN107181340A (zh) * 2017-06-27 2017-09-19 浙江皇冠电动工具制造有限公司 一种带防尘结构的永磁无刷电机

Cited By (71)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2735026A (en) * 1956-02-14 moerk
DE748606C (de) * 1937-09-21 1944-11-08 Anordnung der Lueftungskanaele in den aktiven Eisenteilen elektrischer Maschinen, insbesondere mit grossem Durchmesser
US2497650A (en) * 1945-12-28 1950-02-14 Gen Electric Dynamoelectric machine
US2632092A (en) * 1949-06-09 1953-03-17 Ohio Crankshaft Co Means and method for high-frequency induction heating
US2634375A (en) * 1949-11-07 1953-04-07 Guimbal Jean Claude Combined turbine and generator unit
US2727161A (en) * 1951-12-12 1955-12-13 Vickers Electrical Co Ltd Construction of dynamo electric machines
US2898484A (en) * 1952-01-19 1959-08-04 Krastchew Christoslaw Refrigeration cooling of electrical machines
US2722616A (en) * 1952-04-18 1955-11-01 Westinghouse Electric Corp Evaporative cooling system for dynamo-electric machines
US2791308A (en) * 1953-01-02 1957-05-07 Vickers Inc Magnetic field responsive coupling device with cooling means
DE1058618B (de) * 1954-07-01 1959-06-04 Westinghouse Electric Corp Hermetisch abgeschlossene, zur Foerderung eines Mediums hoeherer Temperatur geeignete elektrische Motorpumpe
US2770106A (en) * 1955-03-14 1956-11-13 Trane Co Cooling motor compressor unit of refrigerating apparatus
US2746269A (en) * 1955-03-17 1956-05-22 Trane Co Plural stage refrigerating apparatus
US2768511A (en) * 1955-03-21 1956-10-30 Trane Co Motor compressor cooling in refrigerating apparatus
US2862119A (en) * 1955-12-14 1958-11-25 Westinghouse Electric Corp Liquid-cooled dynamoelectric machine
US2994004A (en) * 1958-02-19 1961-07-25 Westinghouse Electric Corp Sealed motor pump unit
US2970232A (en) * 1958-10-21 1961-01-31 Gen Electric Conductor-cooled generator
US3240967A (en) * 1959-07-31 1966-03-15 Krastchew Christoslaw Cooling arrangement for electric machines
US3131321A (en) * 1962-04-23 1964-04-28 Gen Electric Liquid-cooled rotor for a dynamoelectric machine
US3510700A (en) * 1969-02-24 1970-05-05 Nikolai Grigorievich Grinchenk Device for feeding coolant to hollow conductors of stator bar winding in electric machines
US3629628A (en) * 1970-07-06 1971-12-21 Gen Motors Corp Cooling arrangement for a squirrel cage rotor assembly
US3675056A (en) * 1971-01-04 1972-07-04 Gen Electric Hermetically sealed dynamoelectric machine
US4498024A (en) * 1982-04-23 1985-02-05 Regie Nationale Des Usines Renault Synchronous electrodynamic machine with permanent magnets and cooled by a liquid
US5365132A (en) * 1993-05-27 1994-11-15 General Electric Company Lamination for a dynamoelectric machine with improved cooling capacity
US6489697B1 (en) * 1999-08-26 2002-12-03 Honda Giken Kogyo Kabushiki Kaisha Rotating electrical machine with improved circulating path for coolant
US6288460B1 (en) 1999-11-03 2001-09-11 Baldor Electric Company Fluid-cooled, high power switched reluctance motor
US20050151429A1 (en) * 2002-08-21 2005-07-14 Yasuji Taketsuna Motor for vehicle
US6897581B2 (en) 2002-10-04 2005-05-24 Honeywell International Inc. High speed generator with the main rotor housed inside the shaft
US20040066098A1 (en) * 2002-10-04 2004-04-08 Doherty Kieran P.J. High speed generator with the main rotor housed inside the shaft
US20070138878A1 (en) * 2005-12-20 2007-06-21 Honeywell International, Inc. System and method for direct liquid cooling of electric machines
US7482725B2 (en) 2005-12-20 2009-01-27 Honeywell International Inc. System and method for direct liquid cooling of electric machines
US20070228847A1 (en) * 2006-03-30 2007-10-04 Korea Fluid Machinery Co., Ltd. High speed electric motor
US20080197724A1 (en) * 2007-02-16 2008-08-21 Rolls-Royce Plc Cooling arrangement of an electrical machine
US8487500B2 (en) * 2007-02-16 2013-07-16 Rolls-Royce Plc Cooling arrangement of an electrical machine
US20100239441A1 (en) * 2007-05-09 2010-09-23 Siemens Aktiengesellschaft Compressor system for underwater use in the offshore area
US8313316B2 (en) * 2007-05-09 2012-11-20 Siemens Aktiengesellschaft Compressor system for underwater use having a stator packet with an annular cooling chamber
CN102742129A (zh) * 2009-12-16 2012-10-17 智能电机股份公司 电机、用于该电机的转子及其制造方法
US20110285221A1 (en) * 2010-05-21 2011-11-24 Remy Technologies, L.L.C. Stator Winding Assembly and Method
US8872399B2 (en) * 2010-05-21 2014-10-28 Remy Technologies, L.L.C. Stator winding assembly and method
CN102893496A (zh) * 2010-05-21 2013-01-23 雷米技术有限公司 定子绕组组件及方法
EP2572435A4 (fr) * 2010-05-21 2014-11-26 Remy Technologies Llc Ensemble d'enroulement de stator et procédé
US9712011B2 (en) * 2010-10-18 2017-07-18 Lappeenrannan Teknillinen Yliopisto Electric machine with modular stator coils and cooling tubes
US20130285487A1 (en) * 2010-10-18 2013-10-31 Lappeenrannan Teknillinen Yliopisto Stator of an electrical machine and an electrical machine
WO2012085280A3 (fr) * 2010-12-23 2014-04-03 Avl Trimerics Gmbh Machine électrique pourvue d'une gaine et procédé de fabrication de ladite machine
US20120161556A1 (en) * 2010-12-28 2012-06-28 Toyota Jidosha Kabushiki Kaisha Superconducting electric motor
US20130002067A1 (en) * 2011-06-30 2013-01-03 Bradfield Michael D Electric Machine Module Cooling System and Method
US20130140924A1 (en) * 2011-12-06 2013-06-06 Dale Glubrecht Electric machine module cooling system and method
US9099900B2 (en) * 2011-12-06 2015-08-04 Remy Technologies, Llc Electric machine module cooling system and method
US9559569B2 (en) * 2012-02-13 2017-01-31 Ge Aviation Systems Llc Arrangement for cooling an electric machine with a layer of thermally conducting and electrically insulating material
US20130207395A1 (en) * 2012-02-13 2013-08-15 Ge Aviation Systems Llc Aircraft engine starter/generator
US9362788B2 (en) 2013-03-14 2016-06-07 Baldor Electric Company Micro-channel heat exchanger integrated into stator core of electrical machine
US9419479B2 (en) 2013-03-14 2016-08-16 Baldor Electric Company Micro-channel heat exchanger for stator of electrical machine with supply header
WO2014152624A3 (fr) * 2013-03-14 2015-11-05 Baldor Electric Company Échangeur thermique à microcanaux pour un stator de machine électrique doté d'un collecteur d'alimentation
EP3154158A1 (fr) 2015-10-09 2017-04-12 AVL List GmbH Frein moteur à hystérésis
EP3173282A1 (fr) 2015-10-09 2017-05-31 AVL List GmbH Véhicule à propulsion électrique
US10128701B2 (en) 2016-08-17 2018-11-13 Atieva, Inc. Motor cooling system utilizing axial cooling channels
US20180054094A1 (en) * 2016-08-17 2018-02-22 Atieva, Inc. Motor Cooling System Utilizing Axial Cooling Channels
US10158263B2 (en) 2016-08-17 2018-12-18 Atieva, Inc. Motor cooling system utilizing axial cooling channels
US10903701B2 (en) 2016-08-17 2021-01-26 Atieva, Inc. Motor cooling system utilizing axial cooling channels
WO2018167294A1 (fr) * 2017-03-17 2018-09-20 Siemens Aktiengesellschaft Stator à refroidissement d'enroulement pour une machine électrique
US11539256B2 (en) 2017-03-17 2022-12-27 Siemens Aktiengesellschaft Stator having winding cooling for an electrical machine
CN111416456A (zh) * 2019-01-07 2020-07-14 奥迪股份公司 用于电机的液冷式转子
US11277056B2 (en) 2019-01-07 2022-03-15 Audi Ag Fluid-cooled rotor for an electric machine
US11462958B2 (en) 2020-05-11 2022-10-04 Atieva, Inc. Stator-integrated manifold assembly to supply coolant to axial coolant channels
US11462957B2 (en) 2020-05-11 2022-10-04 Atieva, Inc. Motor cooling system utilizing axial coolant channels
US11535097B2 (en) 2020-05-11 2022-12-27 Atieva, Inc. Motor cooling system utilizing axial coolant channels
US20220140698A1 (en) * 2020-11-05 2022-05-05 Toyota Jidosha Kabushiki Kaisha Cooling structure for rotary electric machine
US11664705B2 (en) * 2020-11-05 2023-05-30 Toyota Jidosha Kabushiki Kaisha Cooling structure for rotary electric machine
DE102021133029A1 (de) 2021-12-14 2023-06-15 Schaeffler Technologies AG & Co. KG Stator
DE102021133029B4 (de) 2021-12-14 2024-01-04 Schaeffler Technologies AG & Co. KG Stator
US12463481B2 (en) * 2022-06-28 2025-11-04 Dr. Ing. H. C. F. Porsche Ag Rotor of an electric motor having a cooling device and a method for manufacturing a rotor of an electric motor having a cooling device
US20240401693A1 (en) * 2023-05-31 2024-12-05 Fca Us Llc Lubrication cooling system for an electric drive module and efficient thermal management

Also Published As

Publication number Publication date
DE337561C (de) 1921-09-28
GB172015A (en) 1923-03-22
CH92265A (de) 1921-12-16
AT97598B (de) 1924-08-11
FR543794A (fr) 1922-09-08

Similar Documents

Publication Publication Date Title
US1448700A (en) Liquid-cooled electric machine
US3480810A (en) Oil cooled generator
US2285960A (en) Dynamoelectric machine
US2894155A (en) Liquid cooled dynamoelectric machine
JP6302736B2 (ja) 回転電機
US10243419B2 (en) Arrangement for the stator cooling of an electric motor
US2618756A (en) Liquid cooled electrical machine
CN111384795A (zh) 电机
WO2017082023A1 (fr) Machine dynamoélectrique
CN106257803A (zh) 电机
US20170063199A1 (en) Rotor assembly having improved cooling path
JP7525002B2 (ja) 回転電機及び回転電機の冷却構造
US2221567A (en) Turbogenerator rotor
WO2019172007A1 (fr) Machine dynamoélectrique
US2381122A (en) Cooling means for dynamoelectric machines
US20180212494A1 (en) Electrical machine
US1543502A (en) Dynamo-electric machine
US1451577A (en) Dynamo-electric machine
US2422824A (en) Dynamoelectric machine
US2648789A (en) Liquid-cooled rotary electric machine
JP7276358B2 (ja) 回転電機及び回転電機の冷却構造
US3530320A (en) Stator cooling means for dynamo-electric machines
US2282283A (en) Dynamoelectric machine
US3456140A (en) Dynamoelectric machine cooling
US2760091A (en) Dynamo electric machine cooling