FR2372536A1 - Electric machine with cryogenic cooling - has coolant supplied through rotor shaft consisting of two coaxial tubes screwed together with coolant draining through thread - Google Patents

Electric machine with cryogenic cooling - has coolant supplied through rotor shaft consisting of two coaxial tubes screwed together with coolant draining through thread

Info

Publication number
FR2372536A1
FR2372536A1 FR7736157A FR7736157A FR2372536A1 FR 2372536 A1 FR2372536 A1 FR 2372536A1 FR 7736157 A FR7736157 A FR 7736157A FR 7736157 A FR7736157 A FR 7736157A FR 2372536 A1 FR2372536 A1 FR 2372536A1
Authority
FR
France
Prior art keywords
coolant
rotor shaft
thread
electric machine
screwed together
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.)
Granted
Application number
FR7736157A
Other languages
French (fr)
Other versions
FR2372536B1 (en
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.)
SP K BJUR
Original Assignee
SP K BJUR
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 SP K BJUR filed Critical SP K BJUR
Publication of FR2372536A1 publication Critical patent/FR2372536A1/en
Application granted granted Critical
Publication of FR2372536B1 publication Critical patent/FR2372536B1/fr
Granted legal-status Critical Current

Links

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
    • H02K9/20—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil wherein the cooling medium vaporises within the machine casing
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K55/00—Dynamo-electric machines having windings operating at cryogenic temperatures
    • H02K55/02—Dynamo-electric machines having windings operating at cryogenic temperatures of the synchronous type
    • H02K55/04—Dynamo-electric machines having windings operating at cryogenic temperatures of the synchronous type with rotating field windings
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
    • Y02E40/60—Superconducting electric elements or equipment; Power systems integrating superconducting elements or equipment

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Superconductive Dynamoelectric Machines (AREA)
  • Motor Or Generator Cooling System (AREA)

Abstract

The machine has a superconducting winding to which current supply conductors are connected. It is mounted in a hollow rotor whose shaft has an axial channel for the coolant supply. The coolant cryogen is introduced via the axial channel which extends along half of the length of the rotor shaft. Radial holes allow the cryogen to pass out into the superconducting winding. The shaft has two coaxial tube sections (15, 16) connected together by a thread. The coolant cryogen is drained through the clearance between the threads, cooling the rotor shaft ends as it is discharged.
FR7736157A 1976-11-30 1977-11-30 Electric machine with cryogenic cooling - has coolant supplied through rotor shaft consisting of two coaxial tubes screwed together with coolant draining through thread Granted FR2372536A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU2421856 1976-11-30

Publications (2)

Publication Number Publication Date
FR2372536A1 true FR2372536A1 (en) 1978-06-23
FR2372536B1 FR2372536B1 (en) 1980-06-20

Family

ID=20683516

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7736157A Granted FR2372536A1 (en) 1976-11-30 1977-11-30 Electric machine with cryogenic cooling - has coolant supplied through rotor shaft consisting of two coaxial tubes screwed together with coolant draining through thread

Country Status (3)

Country Link
JP (1) JPS5386414A (en)
DE (1) DE2753459C3 (en)
FR (1) FR2372536A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2447635A1 (en) * 1978-12-22 1980-08-22 Sp K Bjuro ELECTRIC MACHINE WITH CRYOGENIC COOLING

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2855832C2 (en) * 1978-12-22 1984-11-29 Leningradskoe proizvodstvennoe elektromašinostroitel'noe ob"edinenie "Elektrosila", Leningrad Cryogenically cooled electrical machine
DE2858052C2 (en) * 1978-12-22 1986-03-20 Leningradskoe proizvodstvennoe elektromašinostroitel'noe ob"edinenie "Elektrosila", Leningrad Power supply for a cryogenically cooled electrical machine
JPS5594559A (en) * 1979-01-11 1980-07-18 Sp K Buyuro Enerugohimashiyu Electric machine using cryogenic cooling
WO2022180875A1 (en) * 2021-02-24 2022-09-01 日本電産株式会社 Rotating electric machine and drive device

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB191416979A (en) * 1914-07-17 1915-07-08 Siemens Brothers Dynamo Works Improvements in or relating Cooling Arrangements for Dynamo-electric Machinery.
FR500984A (en) * 1918-07-02 1920-03-30 Joseph Shepherd Improvements to generators and electric motors
DE2107535A1 (en) * 1970-02-18 1971-08-26 Int Research & Dev Co Ltd Electric machine with super conductive winding
FR2079860A5 (en) * 1970-02-16 1971-11-12 Edf

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB191416979A (en) * 1914-07-17 1915-07-08 Siemens Brothers Dynamo Works Improvements in or relating Cooling Arrangements for Dynamo-electric Machinery.
FR500984A (en) * 1918-07-02 1920-03-30 Joseph Shepherd Improvements to generators and electric motors
FR2079860A5 (en) * 1970-02-16 1971-11-12 Edf
DE2107535A1 (en) * 1970-02-18 1971-08-26 Int Research & Dev Co Ltd Electric machine with super conductive winding

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2447635A1 (en) * 1978-12-22 1980-08-22 Sp K Bjuro ELECTRIC MACHINE WITH CRYOGENIC COOLING

Also Published As

Publication number Publication date
JPS6114742B2 (en) 1986-04-21
FR2372536B1 (en) 1980-06-20
JPS5386414A (en) 1978-07-29
DE2753459A1 (en) 1978-06-01
DE2753459C3 (en) 1980-12-18
DE2753459B2 (en) 1980-04-30

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Legal Events

Date Code Title Description
ST Notification of lapse