GB617060A - Improvements in magnetic couplings, brakes or dynamometers - Google Patents

Improvements in magnetic couplings, brakes or dynamometers

Info

Publication number
GB617060A
GB617060A GB2374144A GB2374144A GB617060A GB 617060 A GB617060 A GB 617060A GB 2374144 A GB2374144 A GB 2374144A GB 2374144 A GB2374144 A GB 2374144A GB 617060 A GB617060 A GB 617060A
Authority
GB
United Kingdom
Prior art keywords
magnetic
air gap
disc
brakes
polepieces
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
GB2374144A
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.)
English Electric Co Ltd
Original Assignee
English Electric 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 English Electric Co Ltd filed Critical English Electric Co Ltd
Priority to GB2374144A priority Critical patent/GB617060A/en
Publication of GB617060A publication Critical patent/GB617060A/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K49/00Dynamo-electric clutches; Dynamo-electric brakes
    • H02K49/02Dynamo-electric clutches; Dynamo-electric brakes of the asynchronous induction type
    • H02K49/04Dynamo-electric clutches; Dynamo-electric brakes of the asynchronous induction type of the eddy-current hysteresis type
    • H02K49/046Dynamo-electric clutches; Dynamo-electric brakes of the asynchronous induction type of the eddy-current hysteresis type with an axial airgap
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K49/00Dynamo-electric clutches; Dynamo-electric brakes
    • H02K49/02Dynamo-electric clutches; Dynamo-electric brakes of the asynchronous induction type
    • H02K49/04Dynamo-electric clutches; Dynamo-electric brakes of the asynchronous induction type of the eddy-current hysteresis type
    • H02K49/043Dynamo-electric clutches; Dynamo-electric brakes of the asynchronous induction type of the eddy-current hysteresis type with a radial airgap

Landscapes

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

Abstract

617,060. Eddy-current brakes. ENGLISH ELECTRIC CO., Ltd., and AYRES, W. E. M. Nov. 28, 1944, No. 23741. [Class 103 (i)] [Also in Group XXXV] In a slip coupling, eddy current brake or dynamometer, one member is a disc or drum arranged in an air gap in the second member in such manner that the flux passes transversely through the disc or drum from one to the other of a pair of unbroken (untoothed) faces on the other member. In the form shown, an engine shaft 3 carries wound field members 1, 2 having an intermediate magnetic ring 30 extending between the two non-magnetic discs 10, 31 constituting the driven member. These have magnetic inserts 32, 33 facing the polepieces 1a, 1b, 2a, 2b on parts 1, 2. Alternatively, a single disc may be employed and this may be magnetic with slots facing the said polepieces. In another form, the driving member has a single coil and the air gap is arranged so that teeth on the driven member project axially into it. The faces of the driving member may be coated with a good conductor or may carry a squirrel cage. One side of the air gap may be bounded by a stationary magnetic member which may carry the winding, and may be formed of coil strip. In the case of brakes or dynamometers, the stationary member may be cooled by fluid passed through ducts therein. According to the Provisional Specification the exciting winding may be omitted and permanent magnets used. Specification 617,059, [Group XXXV], is referred to.
GB2374144A 1944-11-28 1944-11-28 Improvements in magnetic couplings, brakes or dynamometers Expired GB617060A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2374144A GB617060A (en) 1944-11-28 1944-11-28 Improvements in magnetic couplings, brakes or dynamometers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2374144A GB617060A (en) 1944-11-28 1944-11-28 Improvements in magnetic couplings, brakes or dynamometers

Publications (1)

Publication Number Publication Date
GB617060A true GB617060A (en) 1949-02-01

Family

ID=10200538

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2374144A Expired GB617060A (en) 1944-11-28 1944-11-28 Improvements in magnetic couplings, brakes or dynamometers

Country Status (1)

Country Link
GB (1) GB617060A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2693261A (en) * 1951-01-27 1954-11-02 Eaton Mfg Co Magnetic disk clutch
DE948794C (en) * 1952-11-06 1956-09-06 Citroen Sa Andre Electromagnetic brake
DE1084823B (en) * 1957-12-10 1960-07-07 Elie Cohen Eddy current device, especially eddy current brake or clutch
DE1116552B (en) * 1958-06-02 1961-11-02 Philips Nv Multi-pole magnetic eddy current brake for vehicles, especially motor vehicles
DE1164557B (en) * 1955-05-07 1964-03-05 Siemens Ag Eddy current brake for control switches of motor drives, especially on electric traction vehicles
EP1203440B1 (en) * 1999-08-04 2007-05-16 Magna Force, Inc. Permanent magnet coupler with adjustable air gaps

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2693261A (en) * 1951-01-27 1954-11-02 Eaton Mfg Co Magnetic disk clutch
DE948794C (en) * 1952-11-06 1956-09-06 Citroen Sa Andre Electromagnetic brake
DE1164557B (en) * 1955-05-07 1964-03-05 Siemens Ag Eddy current brake for control switches of motor drives, especially on electric traction vehicles
DE1084823B (en) * 1957-12-10 1960-07-07 Elie Cohen Eddy current device, especially eddy current brake or clutch
DE1116552B (en) * 1958-06-02 1961-11-02 Philips Nv Multi-pole magnetic eddy current brake for vehicles, especially motor vehicles
EP1203440B1 (en) * 1999-08-04 2007-05-16 Magna Force, Inc. Permanent magnet coupler with adjustable air gaps

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