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GB1393888A - Electrical machines having a liquid metal current transfer device - Google Patents

Electrical machines having a liquid metal current transfer device

Info

Publication number
GB1393888A
GB1393888A GB1294171A GB1294171A GB1393888A GB 1393888 A GB1393888 A GB 1393888A GB 1294171 A GB1294171 A GB 1294171A GB 1294171 A GB1294171 A GB 1294171A GB 1393888 A GB1393888 A GB 1393888A
Authority
GB
United Kingdom
Prior art keywords
current transfer
attached
metal
brush
transfer device
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
GB1294171A
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.)
International Research and Development Co Ltd
Original Assignee
International Research and Development Co Ltd
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 International Research and Development Co Ltd filed Critical International Research and Development Co Ltd
Priority to GB1294171A priority Critical patent/GB1393888A/en
Publication of GB1393888A publication Critical patent/GB1393888A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R39/00—Rotary current collectors, distributors or interrupters
    • H01R39/64—Devices for uninterrupted current collection
    • H01R39/646—Devices for uninterrupted current collection through an electrical conductive fluid
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R39/00—Rotary current collectors, distributors or interrupters
    • H01R39/02—Details for dynamo electric machines
    • H01R39/18—Contacts for co-operation with commutator or slip-ring, e.g. contact brush
    • H01R39/30—Liquid contacts
    • 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
    • H02K31/04—Acyclic motors or generators, i.e. DC machines having drum or disc armatures with continuous current collectors with at least one liquid-contact collector

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)

Abstract

1393888 Electric machines having liquid current transfer devices INTERNATIONAL RESEARCH & DEVELOPMENT CO Ltd 4 May 1972 [4 May 1971] 12941/71 Heading H2A [Also in Division F2] In an electrical machine, e.g. a drum type homopolar generator, having a current transfer device employing liquid metal as a current transfer medium between relatively moving parts, one or more fibre screens 3 are attached to one part and brush against the other part in order to confine the metal within the machine. In the embodiment shown, two screens are attached to a brush 1 and engage a rotor 2 to confine the metal to the region therebetween, but in other embodiments they are attached to the stator 4, or to the stator housing (6), Fig. 3, to prevent the metal passing to a shaft bearing (7); alternatively, they may be attached to the rotor. The fibres may be of carbon, or ceramic, may be coated with a conductive metal film, and may be connected to the brush via a high impedance in order to limit fault current arcing.
GB1294171A 1971-05-04 1971-05-04 Electrical machines having a liquid metal current transfer device Expired GB1393888A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1294171A GB1393888A (en) 1971-05-04 1971-05-04 Electrical machines having a liquid metal current transfer device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1294171A GB1393888A (en) 1971-05-04 1971-05-04 Electrical machines having a liquid metal current transfer device

Publications (1)

Publication Number Publication Date
GB1393888A true GB1393888A (en) 1975-05-14

Family

ID=10013953

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1294171A Expired GB1393888A (en) 1971-05-04 1971-05-04 Electrical machines having a liquid metal current transfer device

Country Status (1)

Country Link
GB (1) GB1393888A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0274015A3 (en) * 1986-12-08 1988-07-20 General Electric Company Improved liquid metal circulation in an acyclic generator collector
WO2005119857A1 (en) * 2004-06-04 2005-12-15 Siemens Aktiengesellschaft Current transfer device for a wind power station
RU2483414C2 (en) * 2008-03-05 2013-05-27 Сименс Акциенгезелльшафт Machine with retaining bearing with antifriction layer from liquid metal

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0274015A3 (en) * 1986-12-08 1988-07-20 General Electric Company Improved liquid metal circulation in an acyclic generator collector
WO2005119857A1 (en) * 2004-06-04 2005-12-15 Siemens Aktiengesellschaft Current transfer device for a wind power station
RU2483414C2 (en) * 2008-03-05 2013-05-27 Сименс Акциенгезелльшафт Machine with retaining bearing with antifriction layer from liquid metal

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Legal Events

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