GB646853A - Improvements in and relating to electric brakes - Google Patents

Improvements in and relating to electric brakes

Info

Publication number
GB646853A
GB646853A GB5614/48A GB561448A GB646853A GB 646853 A GB646853 A GB 646853A GB 5614/48 A GB5614/48 A GB 5614/48A GB 561448 A GB561448 A GB 561448A GB 646853 A GB646853 A GB 646853A
Authority
GB
United Kingdom
Prior art keywords
brake
rotor
cooling
bearings
ports
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
GB5614/48A
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.)
ELECTRO MECANIQUE DE LAVEYRON
Original Assignee
ELECTRO MECANIQUE DE LAVEYRON
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 ELECTRO MECANIQUE DE LAVEYRON filed Critical ELECTRO MECANIQUE DE LAVEYRON
Publication of GB646853A publication Critical patent/GB646853A/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)
  • Dynamo-Electric Clutches, Dynamo-Electric Brakes (AREA)

Abstract

646,853. Eddy current brake. SOC. ELECTRO-MECANIQUE DE L'AVEYRON. Feb. 25, 1948, No. 5614. Convention date, Feb. 28, 1947. [Class 103 (i)] An eddy current brake of the type having a rotor with groups of electromagnets located on either side is provided with a cooling system that comprises two separate cooling fluid streams, one of which cools the rotor and the other the bearings. As shown in Fig. 3, air supplied from a single fan 21 enters the manifolds 23 and then divides into two streams. One stream passes through axial passages in the electromagnets 25, on to either side of the rotor 1 and out at ports 13a in the cylindrical casing of the brake. The other stream passes through ports 26 in the end-plates and is deflected by a partition 28 on to the ends of the shaft 2 and bearings 3 and escapes through ports 29. Modifications are described in which (a) the cooling stream enters the casing near the periphery of disc 1 dividing into two streams within the casing, and (b) the cooling stream for the bearings is entirely separate from that for the coils and rotor and passes through the brake axially. Relays may be used to connect the circuits to the motor for the cooling fan and the inductor windings to ensure safe operation of the brake.
GB5614/48A 1947-02-28 1948-02-25 Improvements in and relating to electric brakes Expired GB646853A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR646853X 1947-02-28

Publications (1)

Publication Number Publication Date
GB646853A true GB646853A (en) 1950-11-29

Family

ID=9001702

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5614/48A Expired GB646853A (en) 1947-02-28 1948-02-25 Improvements in and relating to electric brakes

Country Status (1)

Country Link
GB (1) GB646853A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2830206A (en) * 1953-11-25 1958-04-08 Cie Telma Foucault current apparatus and in particular braking apparatus
FR2864367A1 (en) * 2003-12-19 2005-06-24 Telma Electric machine e.g. electromagnetic retarder, ventilation device, has unit that drives engine fan in rotation and is independent of shaft, and another driving unit varying rotational speed of fan based on control current

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2830206A (en) * 1953-11-25 1958-04-08 Cie Telma Foucault current apparatus and in particular braking apparatus
FR2864367A1 (en) * 2003-12-19 2005-06-24 Telma Electric machine e.g. electromagnetic retarder, ventilation device, has unit that drives engine fan in rotation and is independent of shaft, and another driving unit varying rotational speed of fan based on control current

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