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1.发明授权Transportation system employing an electromagnetically suspended,guided and propelled vehicle 失效使用电动悬挂，导向和推进的车辆的运输系统
公开(公告)号：US3842751A
公开(公告)日：1974-10-22
申请号：US35624273
申请日：1973-05-01
发明人： THORNTON R , KOLM H
CPC分类号： B61B13/08 , B60L13/10 , B60L2200/26 , B61B15/00 , Y02T30/30 , Y10S505/903
摘要： A system that includes an elongate cylindrical vehicle operable to travel along a similarly-shaped, trough-like guideway. At stations along the guideway, the vehicle is supported by wheels, but between stations it levitates at about 25 centimeters above the inside guideway surface. Levitation of the moving vehicle is effected by interaction between magnetic dipole fields provided by superconducting coils or permanent magnets disposed over substantially the whole lower surface area of the vehicle and a pair of spaced conducting strips located on the guideway inner surface and oriented parallel to the longitudinal axis of the guideway throughout its length. The vehicle is free to rotate or pivot about its longitudinal axis and this, coupled with the very resilient support over its entire length, permits it to travel at 200 kilometers per hour and beyond with minimum discomfort to passengers being transported. The magnetic dipole fields must be of the order of 1,000 to 3,000 gauss at a distance of 25 centimeters from the vehicle to give the support necessary to maintain the 25 centimeter clearance. The necessary propelling force is supplied by a polyphase winding which is disposed in the lower portion of the guideway between the conducting strips; the winding produces a traveling-wave magnetic field that interacts with the magnetic dipole fields. Between stations synchronous operation is accomplished by employing a.c. power input with a cycloconverter, i.e., an a-c to a-c converter, to reduce the input frequency to an appropriate ratio. Acceleration and deceleration of the vehicle is accomplished by varying the frequency of the cycloconverter to provide synchronous interaction between the magnetic field of the winding and the magnetic dipole fields of the superconducting coils as the vehicle accelerates. Provision is made for switching vehicles, and a novel method of guideway fabrication is disclosed.
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2.发明授权
公开(公告)号：US3850109A
公开(公告)日：1974-11-26
申请号：US35538273
申请日：1973-04-30
发明人： THORNTON R
CPC分类号： B60L13/10 , B60L15/005 , B60L2200/26 , B60L2220/14 , B61B13/08 , Y02T10/644 , Y02T10/645
摘要： A transportation system wherein a vehicle is magnetically levitated, guided and propelled along a guideway. The vehicle has a number of long thin superconducting coils which, when energized, interact with I-strips in the guideway to effect levitation. Propulsion is accomplished by interaction between further superconducting coils and the field of a linear synchronous motor. In one form, the I-strips are made cryogenic and/or superconducting in and near stations to provide levitation even at very slow speeds and when the vehicle is stationary.
摘要翻译： 一种运输系统，其中车辆沿导轨磁悬浮，引导和推进。 该车辆具有许多长薄的超导线圈，其在通电时与导轨中的I带相互作用以实现悬浮。 推进是通过进一步的超导线圈与线性同步电动机的相互作用实现的。 在一种形式中，I型带在站内和附近被制成低温和/或超导，以便甚至在非常低的速度下和当车辆静止时也提供悬浮。
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3.发明授权
公开(公告)号：US3768417A
公开(公告)日：1973-10-30
申请号：US3768417D
申请日：1971-07-23
发明人： THORNTON R , KOLM H
CPC分类号： B60L15/005 , B60L13/10 , B60L2200/26 , Y02T10/644 , Y02T10/645 , Y10S505/903 , Y10S505/906
摘要： A system that includes an elongate cylindrical vehicle operable to travel along a similarly-shaped, trough-like guide-way. At stations along the guideway, the vehicle is supported by wheels, but between stations it levitates at about 25 centimeters above the inside guideway surface. Levitation of the moving vehicle is effected by interaction between magnetic dipole fields provided by superconducting coils or permanent magnets disposed over substantially the whole lower surface area of the vehicle and a pair of spaced conducting strips located on the guideway inner surface and oriented parallel to the longitudinal axis of the guideway throughout its length. The vehicle is free to rotate or pivot about its longitudinal axis and this, coupled with the very resilient support over its entire length, permits it to travel at 200 kilometers per hour and beyond with minimum discomfort to passengers being transported. The magnet dipole fields must be of the order of 1,000 to 3,000 gauss at a distance of 25 centimeters from the vehicle to give the support necessary to maintain the 25 centimeter clearance. The necessary propelling force is supplied by a polyphase winding which is disposed in the lower portion of the guideway between the conducting strips; the winding produces a traveling-wave magnetic field that interacts with the magnetic dipole fields. Between stations synchronous operation is accomplished by employing a.c. power input with a cycloconverter, i.e., an a-c to a-c converter, to reduce the input frequency to an appropriate ratio. Acceleration and deceleration of the vehicle is accomplished by varying the frequency of the cycloconverter to provide synchronous interaction between the magnetic field of the winding and the magnetic dipole fields of the superconducting coils as the vehicle accelerates. Provision is made for switching vehicles, and a novel method of guideway fabrication is disclosed.
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