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GB1454006A - Adhesion-improving electromagnet for rail vehicles - Google Patents

Adhesion-improving electromagnet for rail vehicles

Info

Publication number
GB1454006A
GB1454006A GB1252774A GB1252774A GB1454006A GB 1454006 A GB1454006 A GB 1454006A GB 1252774 A GB1252774 A GB 1252774A GB 1252774 A GB1252774 A GB 1252774A GB 1454006 A GB1454006 A GB 1454006A
Authority
GB
United Kingdom
Prior art keywords
permanent magnet
adhesion
march
rail vehicles
electromagnet
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
GB1252774A
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.)
ABB Norden Holding AB
Original Assignee
ASEA AB
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 ASEA AB filed Critical ASEA AB
Publication of GB1454006A publication Critical patent/GB1454006A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61C—LOCOMOTIVES; MOTOR RAILCARS
    • B61C15/00—Maintaining or augmenting the starting or braking power by auxiliary devices and measures; Preventing wheel slippage; Controlling distribution of tractive effort between driving wheels
    • B61C15/04—Maintaining or augmenting the starting or braking power by auxiliary devices and measures; Preventing wheel slippage; Controlling distribution of tractive effort between driving wheels by controlling wheel pressure, e.g. by movable weights or heavy parts or by magnetic devices

Landscapes

  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Electromagnets (AREA)
  • Control Of Vehicles With Linear Motors And Vehicles That Are Magnetically Levitated (AREA)

Abstract

1454006 Electromagnetic holding devices ALLMANNA SVENSKA ELEKTRISKA AB 21 March 1974 [22 March 1973] 12527/74 Heading H1P An electromagnet for improving the adhesion of rail vehicles comprises (Figs. 2, 3) a magnetizable yoke 2 energized by winding 3 with converging shanks 4, 5 having pole surfaces 6, 7 in a horizontal plane facing rail 1. The inner vertical pole faces enclose and contact a permanent magnet 8 so poled that the flux of the permanent magnet traverses the energizing coil in opposite sense to that generated by the coil so as to counteract the leakage flux between the faces. Permanent magnet 8 may be of high coercive material, e.g. barium strontium ferrite or cobalt-rare earth metals, and the magnet assembly is supported by two plates 11 of magnetizable material. The tips of the pole surfaces 6, 7 are bevelled to reduce leakage flux.
GB1252774A 1973-03-22 1974-03-21 Adhesion-improving electromagnet for rail vehicles Expired GB1454006A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE7304038A SE371147B (en) 1973-03-22 1973-03-22

Publications (1)

Publication Number Publication Date
GB1454006A true GB1454006A (en) 1976-10-27

Family

ID=20316994

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1252774A Expired GB1454006A (en) 1973-03-22 1974-03-21 Adhesion-improving electromagnet for rail vehicles

Country Status (5)

Country Link
AT (1) AT327280B (en)
CH (1) CH559650A5 (en)
GB (1) GB1454006A (en)
RO (1) RO60807A (en)
SE (1) SE371147B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003040539A3 (en) * 2001-11-08 2003-12-24 Knorr Bremse Systeme Magnet coil assembly for rail vehicles provided for increasing the traction
CN105067699A (en) * 2015-08-11 2015-11-18 武汉华宇一目检测装备有限公司 Automatic magnetic flux leakage testing probe for hub bearing spinning surfaces

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003040539A3 (en) * 2001-11-08 2003-12-24 Knorr Bremse Systeme Magnet coil assembly for rail vehicles provided for increasing the traction
CN105067699A (en) * 2015-08-11 2015-11-18 武汉华宇一目检测装备有限公司 Automatic magnetic flux leakage testing probe for hub bearing spinning surfaces
CN105067699B (en) * 2015-08-11 2017-11-28 武汉华宇一目检测装备有限公司 A kind of automation magnetic leakage detecting probe in hub bearing spinning face

Also Published As

Publication number Publication date
AT327280B (en) 1976-01-26
DE2411609B2 (en) 1975-09-18
DE2411609A1 (en) 1974-10-03
RO60807A (en) 1976-10-15
ATA231174A (en) 1975-04-15
SE371147B (en) 1974-11-11
CH559650A5 (en) 1975-03-14

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Legal Events

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