US3869990A - Switch arrangement for a magnetic suspension railroad - Google Patents

Switch arrangement for a magnetic suspension railroad Download PDF

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Publication number
US3869990A
US3869990A US394862A US39486273A US3869990A US 3869990 A US3869990 A US 3869990A US 394862 A US394862 A US 394862A US 39486273 A US39486273 A US 39486273A US 3869990 A US3869990 A US 3869990A
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US
United States
Prior art keywords
vehicle
roadbed
secondary conductor
conductor means
primary
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 - Lifetime
Application number
US394862A
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English (en)
Inventor
Anton Bertling
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Siemens AG
Siemens Corp
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Siemens Corp
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Filing date
Publication date
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L13/00—Electric propulsion for monorail vehicles, suspension vehicles or rack railways; Magnetic suspension or levitation for vehicles
    • B60L13/003—Crossings; Points
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L13/00—Electric propulsion for monorail vehicles, suspension vehicles or rack railways; Magnetic suspension or levitation for vehicles
    • B60L13/10—Combination of electric propulsion and magnetic suspension or levitation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2200/00—Type of vehicles
    • B60L2200/26—Rail vehicles

Definitions

  • ABSTRACT An improved switch arrangement for a magnetic suspension railroad in which the normally vertical secondary reaction members associated with the roadbed are replaced in the switch area by members which are horizontal thereby leaving a horizontal air gap in the switch area and permitting ease of switching from the main track to a curved branch track.
  • 1,020,943 magnets are arranged which interact with electrically conducting parts of the track to generate lifting forces as the vehicle moves. This arrangement results in the vehicle being held in a suspended condition while it is in motion.
  • the use'of the same principles for use in lateral guidance of the vehicle is disclosed in US. Pat. No. 3,470,828.
  • the air gap between the roadbed rail and the conductor loop on the vehicle is perpendicular in a manner similar to the system described above.
  • the present invention provides a system which fulfills all the above noted needs.
  • the normally vertical secondary conductor loops or rails which are installed on the roadbed along with the reaction rail for linear propulsion are replaced by conductor loops or plates which are placed in a plane which is essentially parallel to the plane of the roadbed.
  • additional magnets or primary conductor loops are installed in the vehicle and arranged so that the air gaps between these conductor loops or magnets and the 5 conductor plates or loops on the roadbed also lie in planes parallel to the roadbed.
  • this arrangement permits conventional trackbound vehicles to travel the same rails without danger of interference from the magnetic suspension rails.
  • guidance rails are provided only on the outsides of the switch, i.e., on the outside of the straight section and on what is actually the inside of the curved section. This permits one or other of the primary guidance loops installed on each side of the vehicle to be energized prior to entering the switch to thereby cause travel in the selected direction to occur.
  • design is simplified, operation safer and power savings achieved.
  • the arrangement places no excessive demands on the guage accuracy of the track in the switch. In addition adequate propulsion is maintained throughout the switch area.
  • FIG. 1 is a cross-sectional view through the vehicle and roadbed of a magnetic suspension railroad constructed according to the present invention.
  • FIG. 2 is a force diagram illustrating the lateral guidance forces generated in the arrangement shown on FIG. 1.
  • FIG. 3 is a plan view of the track in the area of the switch.
  • the roadbed designated generally by 1
  • the roadbed has installed on each side a conductor plate 3.
  • Conductor plates 3 are separated by a horizontal air gap from current carrying loops 4 installed in the vehicle which cooperate therewith to generate lifting forces in accordance with the electrodynamic principles.
  • lateral guidance of the vehicle is obtained through the interaction of primary conductor loops 6 in the vehicle with secondary conductor loopskr plates 7 installed on the roadbed. These are shown in dotted lines since in the area of the switch they are replaced as will be described below.
  • the stator parts of a linear motor designated by 8.
  • Conventional rails 9 are also mounted to the roadbed for use by conventional rail vehicles and for use during starting and stopping operation of the magnetic suspension ve hicle. These rails 9 cooperate with retractable wheels installed on the vehicle. Prior to starting, the vehicle will be resting with its wheels 10 on the rails 9. The linear motor is switched on and acceleration forces generated with the vehicle running on the wheels. After a predetermined minimum velocity is reached, lifting forces are generated which will maintain suspension of the vehicle. Once this occurs the wheels are retracted and the vehicle will be maintained in a suspended condition by the interaction of the primary conductor loops 4 and the secondary conductor loops 3 on the roadbed.
  • the vertical conductor plates 7 are replaced by a plate 7a and conductor plates 7b which are installed on both sides of the switch.
  • These conductor plates 7a and 7b unlike the conductor plates 7 which were vertical, are installed in a horizontal manner, i.e., essentially parallel to the plane of the roadbed.
  • additional primary conductor loops 6b are installed which cooperate with the conductors 7b to generate guidance forces while within the switch area.
  • An additional linear motor stator 8 is installed to cooperate with the plate 7a to generate the necessary propulsion forces.
  • the respective air gaps 8,, 8 and 8 between the suspension arrangement comprising primary conductor loops 4 and plates 3, the guidance arrangement comprising primary conductor loops 6b and conductors 7b and in linear motor arrangement comprising the stator 8a and the reaction rail 7a all lie in planes parallel to the plane of the roadbed.
  • FIG. 2 illustrates the restoring force K which is produced by deviation from the present position of the vehicle over the track, i.e., the position shown where the primary conductor loops 6b are directly over the rails 7b.
  • the forces are plotted over the width b of the rails 7b. As illustrated, a very small deviation from the center point results in high values of restoring force to properly maintain the vehicle in desired position over the roadbed.
  • FIG. 3 A plan view of the switch area is illustrated by FIG. 3.
  • the plates 7 are extended only to the entrance and exit from the switch. Within the switch they are replaced by the conducting plates 7a and 7b as illustrated.
  • the plates 3 used for generating support forces are extended through the switch area.
  • the plates 3 are designated within the switch area by the number 7a since together with the other center portion 7a they make up a plate substantially filling the switch area except for slots to the rails 9.
  • the conducting plates 7b which are magnetically conductive, are installed only on the outsides of the switch. That is one conducting plate 7b is installed on the outside of the straight section and another plate 7b on what starts out as the other side of the straight track and actually becomes the inside of the curved portion of the track.
  • the plates 7a and 7b will be arranged so that the air gaps 8 8 lie at least approximately in a single plane which is in the unitedity of the upper edge of the rails 9 used for starting and stopping. This avoids having parts which protrude above the running rails 9 and permits ease of operation when conventional vehicles are used on the same roadbed.
  • a single roadv bed can be used for both magnetically suspended vehicles and conventional rail-bound vehicles. This permits conventional vehicles coming from points outside the portion of the railroad which is equipped for magnetic suspension to ride on the same tracks and thus many more points can be served without the installation of additional roadbeds.
  • an improved switching arrangement for such a railroad comprising:
  • additional primary conductor loops arranged in the vehicle to react with said secondary conductor loops whereby by selecting one or the other of the primary control loops in the vehicle, the direction of travel may be selected.
  • secondary conductor means installed in the switch area of the roadbed such that the air gap. existing between said secondary conductor means and the primary conductor means in the vehicle lie in planes essentially parallel to the plane of the roadbed;

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Vehicles With Linear Motors And Vehicles That Are Magnetically Levitated (AREA)
  • Railway Tracks (AREA)
  • Non-Mechanical Conveyors (AREA)
US394862A 1972-09-29 1973-09-06 Switch arrangement for a magnetic suspension railroad Expired - Lifetime US3869990A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19722247858 DE2247858A1 (de) 1972-09-29 1972-09-29 Magnetische schwebebahn

Publications (1)

Publication Number Publication Date
US3869990A true US3869990A (en) 1975-03-11

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ID=5857774

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Application Number Title Priority Date Filing Date
US394862A Expired - Lifetime US3869990A (en) 1972-09-29 1973-09-06 Switch arrangement for a magnetic suspension railroad

Country Status (5)

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US (1) US3869990A (enExample)
JP (1) JPS4971618A (enExample)
DE (1) DE2247858A1 (enExample)
FR (1) FR2201199B3 (enExample)
GB (1) GB1439204A (enExample)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5778796A (en) * 1994-06-21 1998-07-14 Kim; In Ki Switch system for personal rapid transit
US5992575A (en) * 1996-03-23 1999-11-30 Kim; In Ki Personal rapid transit braking systems
US6029104A (en) * 1995-11-08 2000-02-22 Kim; In Ki Position recognition apparatus for a personal rapid transit control system
WO2020038964A1 (en) * 2018-08-20 2020-02-27 Hyper Poland Spolka Z Ograniczona Odpowiedzialnoscia Magnetic levitation railway system
CN113415171A (zh) * 2021-07-07 2021-09-21 西南交通大学 一种悬浮驱动一体化的磁悬浮系统及悬浮驱动方法

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2626871C3 (de) * 1976-06-16 1979-01-18 Maschinenfabrik Augsburg-Nuernberg Ag, 8500 Nuernberg Oberbaugestaltung in Streckenbogen, insbesondere für Hochgeschwindigkeits-Verkehrsmittel
CN103832439A (zh) * 2013-12-19 2014-06-04 柳州市京阳节能科技研发有限公司 高速节能环保充气磁浮列车
CN112239976B (zh) * 2019-07-16 2022-04-12 中国航天科工飞航技术研究院（中国航天海鹰机电技术研究院） 筋式双线轨道梁体结构及具有其的分体式真空管道
CN112298239B (zh) * 2020-11-01 2022-02-01 成都西交领创科技有限公司 一种中置式长定子高速永磁磁浮列车悬浮架及运行系统

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3628462A (en) * 1969-07-16 1971-12-21 Republic National Bank Of Dall Vehicle switching apparatus
US3780668A (en) * 1971-09-15 1973-12-25 Krauss Maffei Ag Electromagnetic suspension and/or guide system especially for magnetically suspended vehicles

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3628462A (en) * 1969-07-16 1971-12-21 Republic National Bank Of Dall Vehicle switching apparatus
US3780668A (en) * 1971-09-15 1973-12-25 Krauss Maffei Ag Electromagnetic suspension and/or guide system especially for magnetically suspended vehicles

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5778796A (en) * 1994-06-21 1998-07-14 Kim; In Ki Switch system for personal rapid transit
US6029104A (en) * 1995-11-08 2000-02-22 Kim; In Ki Position recognition apparatus for a personal rapid transit control system
US5992575A (en) * 1996-03-23 1999-11-30 Kim; In Ki Personal rapid transit braking systems
WO2020038964A1 (en) * 2018-08-20 2020-02-27 Hyper Poland Spolka Z Ograniczona Odpowiedzialnoscia Magnetic levitation railway system
US20210316616A1 (en) * 2018-08-20 2021-10-14 Hyper Poland Electro S.A. Magnetic levitation railway system
JP2021535309A (ja) * 2018-08-20 2021-12-16 ハイパー・ポーランド・エレクトロ・エス・アー 磁気浮上式鉄道システム
US12351036B2 (en) * 2018-08-20 2025-07-08 Hyper Poland Electro S.A. Magnetic levitation railway system
CN113415171A (zh) * 2021-07-07 2021-09-21 西南交通大学 一种悬浮驱动一体化的磁悬浮系统及悬浮驱动方法
CN113415171B (zh) * 2021-07-07 2022-10-21 西南交通大学 一种悬浮驱动一体化的磁悬浮系统及悬浮驱动方法

Also Published As

Publication number Publication date
FR2201199B3 (enExample) 1976-08-20
JPS4971618A (enExample) 1974-07-11
GB1439204A (en) 1976-06-16
FR2201199A1 (enExample) 1974-04-26
DE2247858A1 (de) 1974-04-04

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