GB433408A - Improvements in electrical devices for the absorption of mechanical energy - Google Patents

Improvements in electrical devices for the absorption of mechanical energy

Info

Publication number
GB433408A
GB433408A GB32795/34A GB3279534A GB433408A GB 433408 A GB433408 A GB 433408A GB 32795/34 A GB32795/34 A GB 32795/34A GB 3279534 A GB3279534 A GB 3279534A GB 433408 A GB433408 A GB 433408A
Authority
GB
United Kingdom
Prior art keywords
rotor
periphery
discs
pole
pieces
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
GB32795/34A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB433408A publication Critical patent/GB433408A/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
    • H02K49/04—Dynamo-electric clutches; Dynamo-electric brakes of the asynchronous induction type of the eddy-current hysteresis type
    • H02K49/046—Dynamo-electric clutches; Dynamo-electric brakes of the asynchronous induction type of the eddy-current hysteresis type with an axial airgap

Landscapes

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

Abstract

433,408. Electrical brakes. SARAZIN, R., Rue du Chateau de la Chasse, St.- Prix, and LAGACHE, A., 6, Boulevard Vercingetorix, Argenteuil, both in Seine-et-Oise, France. Nov. 14, 1934, No. 32795. Convention date, Dec. 7, 1933. [Class 103 (i)] An electrical brake comprises a flat rotor 44 rotating between pole-pieces 46, 47 which face each other and are carried by a stationary casing 42 completely surrounding the rotor and adapted to permit a circulation of air over the rotor. The braking effect is controlled by varying the current in the pole-pieces and thus the magnetic field. To cool the brake the rotor is in the form of a fan having curved blades 43 connected to a hub 41 and a rim 44 and orifices 50, 51 are provided for the inlet and outlet of air. In a modification the rotor consists of metal discs having radial slots which do not extend to the periphery nor to the central hole so that the contour of each slot forms a cased electric circuit. Fan blades are formed on the periphery of the disc. Further discs may be juxtaposed with these discs in which the radial slots terminate alternately at the periphery and the central hole.
GB32795/34A 1933-12-07 1934-11-14 Improvements in electrical devices for the absorption of mechanical energy Expired GB433408A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR661026X 1933-12-07
FR433408X 1933-12-07

Publications (1)

Publication Number Publication Date
GB433408A true GB433408A (en) 1935-08-14

Family

ID=26214632

Family Applications (1)

Application Number Title Priority Date Filing Date
GB32795/34A Expired GB433408A (en) 1933-12-07 1934-11-14 Improvements in electrical devices for the absorption of mechanical energy

Country Status (1)

Country Link
GB (1) GB433408A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2487416A (en) * 1948-03-08 1949-11-08 Electro Mecanique De Laveyron Electric brake, especially for automobile vehicles
US4937483A (en) * 1987-11-18 1990-06-26 Tokyo-Buhin Kogyo Co., Ltd. Eddy-current brake
US5054587A (en) * 1987-04-30 1991-10-08 Tokyo-Buhin Kogyo Co., Ltd. Eddy-current brake
WO2003100943A2 (en) * 2002-05-24 2003-12-04 Velocity Magnetics, Inc. Fixationi of permanent magnets to secondary of linear machine and linear machine with multiple time constant circuits
US8727078B2 (en) 2004-05-28 2014-05-20 Velocity Magnetics, Inc. Selectively incrementally actuated linear eddy current braking system

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2487416A (en) * 1948-03-08 1949-11-08 Electro Mecanique De Laveyron Electric brake, especially for automobile vehicles
US5054587A (en) * 1987-04-30 1991-10-08 Tokyo-Buhin Kogyo Co., Ltd. Eddy-current brake
US4937483A (en) * 1987-11-18 1990-06-26 Tokyo-Buhin Kogyo Co., Ltd. Eddy-current brake
WO2003100943A2 (en) * 2002-05-24 2003-12-04 Velocity Magnetics, Inc. Fixationi of permanent magnets to secondary of linear machine and linear machine with multiple time constant circuits
WO2003100943A3 (en) * 2002-05-24 2004-04-15 Velocity Magnetics Inc Fixationi of permanent magnets to secondary of linear machine and linear machine with multiple time constant circuits
AU2003231851B2 (en) * 2002-05-24 2007-01-04 Velocity Magnetics, Inc. Linear synchronous motor with multiple time constant circuits, a secondary synchronous stator member and improved method for mounting permanent magnets
US8727078B2 (en) 2004-05-28 2014-05-20 Velocity Magnetics, Inc. Selectively incrementally actuated linear eddy current braking system
US9415693B2 (en) 2004-05-28 2016-08-16 Velocity Magnetics, Inc. Selectively incrementally actuated linear eddy current braking system

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