GB1454006A - Adhesion-improving electromagnet for rail vehicles - Google Patents
Adhesion-improving electromagnet for rail vehiclesInfo
- 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
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.
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2003040539A2 (en) * | 2001-11-08 | 2003-05-15 | Knorr-Bremse Systeme für Schienenfahrzeuge GmbH | 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 |
-
1973
- 1973-03-22 SE SE7304038A patent/SE371147B/xx unknown
-
1974
- 1974-01-29 CH CH117274A patent/CH559650A5/xx not_active IP Right Cessation
- 1974-03-20 RO RO7810274A patent/RO60807A/ro unknown
- 1974-03-20 AT AT231174A patent/AT327280B/en not_active IP Right Cessation
- 1974-03-21 GB GB1252774A patent/GB1454006A/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2003040539A2 (en) * | 2001-11-08 | 2003-05-15 | Knorr-Bremse Systeme für Schienenfahrzeuge GmbH | Magnet coil assembly for rail vehicles provided for increasing the traction |
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 |
---|---|
SE371147B (en) | 1974-11-11 |
CH559650A5 (en) | 1975-03-14 |
RO60807A (en) | 1976-10-15 |
DE2411609A1 (en) | 1974-10-03 |
DE2411609B2 (en) | 1975-09-18 |
ATA231174A (en) | 1975-04-15 |
AT327280B (en) | 1976-01-26 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |