GB1345154A - Direct current electrical machines - Google Patents

Direct current electrical machines

Info

Publication number
GB1345154A
GB1345154A GB2444170A GB1345154DA GB1345154A GB 1345154 A GB1345154 A GB 1345154A GB 2444170 A GB2444170 A GB 2444170A GB 1345154D A GB1345154D A GB 1345154DA GB 1345154 A GB1345154 A GB 1345154A
Authority
GB
United Kingdom
Prior art keywords
rotor
brushes
machine
direct current
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
Application number
GB2444170A
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.)
UK Secretary of State for Defence
Original Assignee
UK Secretary of State for Defence
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 UK Secretary of State for Defence filed Critical UK Secretary of State for Defence
Publication of GB1345154A publication Critical patent/GB1345154A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K31/00—Acyclic motors or generators, i.e. DC machines having drum or disc armatures with continuous current collectors
    • H02K31/02—Acyclic motors or generators, i.e. DC machines having drum or disc armatures with continuous current collectors with solid-contact collectors
    • 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
    • H02K55/06—Dynamo-electric machines having windings operating at cryogenic temperatures of the homopolar type
    • 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)

Abstract

1345154 Dynamo-electric machines DEFENCE SECRETARY OF STATE FOR 20 May 1971 [20 May 1970] 24441/70 Heading H2A The stator 8 and rotor 2 of a D.C. machine have an intermediate rotor 7 disposed between them which is driven at a lower speed than the rotor 2 and is connected to the stator by brushes 20 and to the rotor 2 by brushes 16. As shown, the machine is of the homopolar type with drum rotors and superconducting field windings 4 cooled by liquid helium, the rotors having part-spherical recesses to accommodate the field windings. Rotor 7 is driven from the machine shaft 6 through a gear train 11, 11<SP>1</SP>, 12, 14, 15 and rotates at substantially half the speed of rotor 2 resulting in a low relative speed between the brushes and copper layers 21, 17 which they contact. The inner rotor may be discoidal.
GB2444170A 1971-05-20 1971-05-20 Direct current electrical machines Expired GB1345154A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2444170 1971-05-20

Publications (1)

Publication Number Publication Date
GB1345154A true GB1345154A (en) 1974-01-30

Family

ID=10211786

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2444170A Expired GB1345154A (en) 1971-05-20 1971-05-20 Direct current electrical machines

Country Status (1)

Country Link
GB (1) GB1345154A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8247942B2 (en) 2010-06-21 2012-08-21 Ut-Batelle, Llc Multi-winding homopolar electric machine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8247942B2 (en) 2010-06-21 2012-08-21 Ut-Batelle, Llc Multi-winding homopolar electric machine
US8288910B1 (en) 2010-06-21 2012-10-16 Ut-Battelle, Llc Multi-winding homopolar electric machine

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees