Patent ID: 7243604

Claim:
A hidden-rail permanent magnetic levitation train and railway system, comprising: a track unit including an underground reinforced concrete framework, two tubes parallel to each other and formed in the framework, a rail through slit formed in a central portion of a top wall of each tube so as to communicate each tube with the ground, magnetically conductive plate rails mounted on a top inner surface of each tube and arranged at two sides of the rail through slit respectively, and a magnetically conductive wing rail mounted on each side inner surface of each tube, in which a groove is formed in a central portion of each magnetically conductive wing rail and served as a guide rail; and a magnetic levitation train consisting of magnetic levitation vehicles which are connected to one another sequentially, each magnetic levitation vehicle including two underground symmetrical magnetic levitation power cabins located inside the two tubes respectively and an aboveground car, in which each of the magnetic levitation power cabins is connected integrally with a bottom of the car via a web girder in shape of a plate and passed through the rail through slit, and in which each magnetic levitation power cabin comprising: an upper wing permanent magnet and a lower wing permanent magnet, which are mounted on each outer side surface of the magnetic levitation power cabin and spaced by a gap therebetween, in which one of the two wing permanent magnets is N pole and the other is S pole, and each wing permanent magnet and the corresponding magnetically conductive wing rail being 5-35 mm apart so as to generate an upward and downward balancing levitation force; and a top permanent magnet provided on a top outer surface of the magnetic levitation power cabin, the top permanent magnet and the corresponding magnetically conductive plate rail provided on a top inner surface of the tube being 20-160 mm apart so as to generate a levitation force whose direction is contrary to the gravity direction; a set of power units which are mounted at a central portion inside each magnetic levitation power cabin, each power unit being composed of a driving wheel, a driving motor, a vehicle-mounted electrical source and an inversion control system, and two sets of guide fixed pulleys which are mounted at both ends inside the magnetic levitation power cabin respectively, and wherein during travel of the magnetic levitation vehicles, the magnetic levitation vehicles are maintained in a levitation state under the levitation force and the upward and downward balancing levitation force, and the guide fixed pulleys and the driving wheels are level with each other and contacted respectively with the guide rails fixed on both side inner surfaces of each tube for controlling the vehicles centrally between two outermost magnetically conductive wing rails mounted inside the two tubes.