U.S. patents available from 1976 to present.
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Integrated high speed MAGLEV system

Patent 6044770 Issued on April 4, 2000. Estimated Expiration Date: Icon_subject June 23, 2015. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

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Inventors

Assignee

Application

No. 493332 filed on 06/23/1995

US Classes:

104/282, Propulsion means employed to suspend car104/284, Including means to sense or control car position or attitude with respect to guideway104/285, With cooling means104/286, Construction or composition of suspension elements104/292, Propulsion by active guideway; e.g., linear synchronous motor, etc.310/12Linear

Examiners

Primary: Morano, S. Joseph

Attorney, Agent or Firm

International Class

B60L 013/04

Abstract

An integrated MAGLEV (Magnetic Levitated Vehicle) system consists of permanent or preferably superconducting vehicle-mounted magnets which interact with both active and induced track-based currents. The magnets on the vehicle which are used for propulsion serve the dual purpose of realizing both levitation and lateral stabilization (guidance). The contribution offered by this invention is that it is able to provide propulsion, levitation, and guidance using a single type of track-based coil interacting with a singular type of magnetic field which is affixed to the vehicle. The realization of multiple functions with a single coil reduces the cost and enhances the efficiency of this MAGLEV system. In the main embodiment of this invention, propulsion currents are injected into brushes sliding along brush contact surfaces on the rail. Motion induced currents in the coils realize both the necessary levitation and guidance forces for the vehicle. The propulsion system is basically a linear DC motor and requires no power handling along the track. Necessary operating power can either be carried on the vehicle or collected by a third rail pickup system. All coils in the track are supported by a reinforced recycled plastic matrix (polyvinyl fiberglass) or similar material.

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