GB1481575A - Eddy current clutch or brake drum - Google Patents

Eddy current clutch or brake drum

Info

Publication number
GB1481575A
GB1481575A GB561875A GB561875A GB1481575A GB 1481575 A GB1481575 A GB 1481575A GB 561875 A GB561875 A GB 561875A GB 561875 A GB561875 A GB 561875A GB 1481575 A GB1481575 A GB 1481575A
Authority
GB
United Kingdom
Prior art keywords
ring
eddy current
conductivity material
cast
slots
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
GB561875A
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.)
Babcock Transformers Ltd
Original Assignee
Heenan Drives 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 Heenan Drives Ltd filed Critical Heenan Drives Ltd
Priority to GB561875A priority Critical patent/GB1481575A/en
Publication of GB1481575A publication Critical patent/GB1481575A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K49/00—Dynamo-electric clutches; Dynamo-electric brakes
    • H02K49/02—Dynamo-electric clutches; Dynamo-electric brakes of the asynchronous induction type

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Dynamo-Electric Clutches, Dynamo-Electric Brakes (AREA)

Abstract

1481575 Eddy current clutches and brakes HEENAN DRIVES Ltd 16 Jan 1976 [10 Feb 1975] 5618/75 Heading H2A A drum 10 for an eddy current clutch or an eddy current brake comprises a ring of high magnetic permeability material 11 with slots (12, Fig. 7, not shown) on an inside face of the ring, and with high electrical conductivity material extending as bars 16 in the slots through the inside of the ring, and extending at 17, 18, 19 at the end and outer faces of the ring to form gapless closed toroidal current paths of high conductivity material around the ring, the high conductivity material being cast in one piece around the ring. In the drum shown the ring 11 is formed of non-laminated B.S. 592 Grade A steel, and the toroidal current paths are provided by aluminium material, the latter also being cast to form integral cooling blades 20, 21.
GB561875A 1976-01-16 1976-01-16 Eddy current clutch or brake drum Expired GB1481575A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB561875A GB1481575A (en) 1976-01-16 1976-01-16 Eddy current clutch or brake drum

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB561875A GB1481575A (en) 1976-01-16 1976-01-16 Eddy current clutch or brake drum

Publications (1)

Publication Number Publication Date
GB1481575A true GB1481575A (en) 1977-08-03

Family

ID=9799478

Family Applications (1)

Application Number Title Priority Date Filing Date
GB561875A Expired GB1481575A (en) 1976-01-16 1976-01-16 Eddy current clutch or brake drum

Country Status (1)

Country Link
GB (1) GB1481575A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0367387A2 (en) * 1988-10-31 1990-05-09 Sumitomo Metal Industries, Ltd. Eddy current retarder
EP0399084A1 (en) * 1989-05-26 1990-11-28 Berger, Johann Rotor drive for an eddy current retarder
CN1058327C (en) * 1994-11-21 2000-11-08 四川联合大学 Electric eddy current quick acting clutch

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0367387A2 (en) * 1988-10-31 1990-05-09 Sumitomo Metal Industries, Ltd. Eddy current retarder
EP0367387A3 (en) * 1988-10-31 1991-08-07 Sumitomo Metal Industries, Ltd. Eddy current retarder
EP0399084A1 (en) * 1989-05-26 1990-11-28 Berger, Johann Rotor drive for an eddy current retarder
CN1058327C (en) * 1994-11-21 2000-11-08 四川联合大学 Electric eddy current quick acting clutch

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee