FR2306112A1 - Rail vehicle eddy-current braking system - has ferromagnetic core raised and lowered towards wheels or rail - Google Patents

Rail vehicle eddy-current braking system - has ferromagnetic core raised and lowered towards wheels or rail

Info

Publication number
FR2306112A1
FR2306112A1 FR7510623A FR7510623A FR2306112A1 FR 2306112 A1 FR2306112 A1 FR 2306112A1 FR 7510623 A FR7510623 A FR 7510623A FR 7510623 A FR7510623 A FR 7510623A FR 2306112 A1 FR2306112 A1 FR 2306112A1
Authority
FR
France
Prior art keywords
rail
wheels
braking system
ferromagnetic core
current braking
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.)
Granted
Application number
FR7510623A
Other languages
French (fr)
Other versions
FR2306112B1 (en
Inventor
Yves Machefert-Tassin
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.)
MTE SA
Original Assignee
MTE SA
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 MTE SA filed Critical MTE SA
Priority to FR7510623A priority Critical patent/FR2306112A1/en
Publication of FR2306112A1 publication Critical patent/FR2306112A1/en
Application granted granted Critical
Publication of FR2306112B1 publication Critical patent/FR2306112B1/fr
Granted 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61H—BRAKES OR OTHER RETARDING DEVICES SPECIALLY ADAPTED FOR RAIL VEHICLES; ARRANGEMENT OR DISPOSITION THEREOF IN RAIL VEHICLES
    • B61H1/00—Applications or arrangements of brakes with a braking member or members co-operating with the periphery of the wheel rim, a drum, or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61H—BRAKES OR OTHER RETARDING DEVICES SPECIALLY ADAPTED FOR RAIL VEHICLES; ARRANGEMENT OR DISPOSITION THEREOF IN RAIL VEHICLES
    • B61H7/00—Brakes with braking members co-operating with the track

Abstract

The adjustable eddy-current or Foucault braking system is for use on rail vehicles. It comprises a ferromagnetic core in bar form (1) running parallel to the rail and between the two successive wheels of the vehicle (8). This has a widened portion (15) at each end shaped so as to fit against the wheel tyre, with a nose (5) extending partly between this and the rail. A first induction coil (2) is mounted opposite the rail, and a second one (6) on the widened portion adjacent to the wheel. A mechanism (9) moves the core up and down between a first position close to the rail and clear of the wheels, and a second one clear of the rail and close to the wheels. The two coils are excited simultaneously, so that their fluxes are added together in the widened portion.
FR7510623A 1975-04-04 1975-04-04 Rail vehicle eddy-current braking system - has ferromagnetic core raised and lowered towards wheels or rail Granted FR2306112A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7510623A FR2306112A1 (en) 1975-04-04 1975-04-04 Rail vehicle eddy-current braking system - has ferromagnetic core raised and lowered towards wheels or rail

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7510623A FR2306112A1 (en) 1975-04-04 1975-04-04 Rail vehicle eddy-current braking system - has ferromagnetic core raised and lowered towards wheels or rail

Publications (2)

Publication Number Publication Date
FR2306112A1 true FR2306112A1 (en) 1976-10-29
FR2306112B1 FR2306112B1 (en) 1978-07-13

Family

ID=9153550

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7510623A Granted FR2306112A1 (en) 1975-04-04 1975-04-04 Rail vehicle eddy-current braking system - has ferromagnetic core raised and lowered towards wheels or rail

Country Status (1)

Country Link
FR (1) FR2306112A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4668886A (en) * 1984-12-05 1987-05-26 501 Labavia - S.G.E. Eddy current retarders

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE763322C (en) * 1942-05-09 1953-02-16 Walter Dr-Ing Kaal Electromagnetic rail and wheel friction brake
FR2098116A5 (en) * 1970-07-18 1972-03-03 Baermann Max

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE763322C (en) * 1942-05-09 1953-02-16 Walter Dr-Ing Kaal Electromagnetic rail and wheel friction brake
FR2098116A5 (en) * 1970-07-18 1972-03-03 Baermann Max

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4668886A (en) * 1984-12-05 1987-05-26 501 Labavia - S.G.E. Eddy current retarders

Also Published As

Publication number Publication date
FR2306112B1 (en) 1978-07-13

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