Apparatus, systems and methods for levitating and moving objects

• US 7,204,192 B2
• Filed: 04/22/2003
• Issued: 04/17/2007
• Est. Priority Date: 07/02/2001
• Status: Expired due to Fees

• Current Assignee: Synergy GreenTech Corporation
• Original Assignee: Magna Force Incorporated
• Inventors: Sparks, Michael T., Lamb, Karl J., Gossage, Scott D.
• Primary Examiner(s): Jules; Frantz F.
• Application Number:
  US10/421,207
• Publication Number:
  US 20030205163A1
• Time in Patent Office: 1,456 Days
• Field of Search: 104/290, 104/292, 104/287, 104/281, 104/288, 104/282, 104/283, 198/619
• US Class Current: 104/282
• CPC Class Codes: B60L 13/04 Magnetic suspension or levitation for vehicles
• CPC Class Codes: B60L 2200/26 Rail vehicles
• CPC Class Codes: B60M 7/00 Power lines or rails specially adapted for electrically-propelled vehicles of special types, e.g. suspension tramway, ropeway, underground railway
• CPC Class Codes: B61B 13/08 Sliding or levitation systems vehicles with air cushions between rails and vehicles B60V3/04
• CPC Class Codes: B65G 54/02 electrostatic, electric, or magnetic
• CPC Class Codes: H02K 49/046 with an axial airgap

Abstract

Apparatus, systems and methods for levitating and moving objects such as vehicles, doors and windows are shown and described herein. The embodiments incorporate a track with lower rails having lower permanent magnets and the object with upper rails having upper permanent magnets aligned with the lower rails and oriented to oppose the polarity of the lower permanent magnets. Ferrous backing plates may be incorporated behind the lower rails and/or the upper rails. Embodiments may also incorporated a third rail of an electroconductive material, and a driving disc positioned near the third rail. Permanent magnets in the driving disc may be rotated with the driving disc in the presence of the third rail to accelerate the upper rails with respects to the lower rails. The driving disc may be coupled one of the lower rails to maintain a desired alignment with the third rail.

Claims

1. A system for use in moving people or cargo, the system comprising:

a track having a length;

an object configured to travel along the track;

a drive rail system comprising at least one electroconductive rail extending along the length of the track; and

at least one driving disc coupled to the object to rotate about a rotary axis with respect to the object, the at least one driving disc having a plurality of permanent magnets spaced about the rotary axis, the at least one driving disc being positioned with a portion thereof in close proximity to the electroconductive rail and being controllably rotatable in the presence of the electroconductive rail to create an eddy current therebetween to accelerate and decelerate the object with respect to the track;

wherein the at least one driving disc is adapted to be movable during operation in a transverse direction relative to the object, and the driving disc is coupled to the track to maintain a substantially fixed distance between the driving disc and the track, such that the transverse position of the at least one driving disc with respect to the object can change during operation to maintain a desired alignment between the at least one driving disc and the electroconductive rail.

2. The system of claim 1 wherein the at least one driving disc is spaced apart from the track by a rigid linkage sized to maintain the at least one driving disc in a desired element with the drive rail system.

3. The system of claim 1 wherein the at least one driving disc is spaced apart from the track by a rigid linkage size to maintain the at least one driving disc in a desired alignment with the drive rail system, the rigid linkage being configured to generate a reduced amount of friction against the track.

4. The system of claim 1 wherein the object comprises a vehicle.

5. The system of claim 1 wherein the object comprises a train car.

6. The system of claim 1 wherein the object comprises a freight carrier.

7. The system of claim 1 wherein the object comprises a door.

8. The system of claim 1 wherein the object comprises a window.

9. The system of claim 1 wherein the at least one driving disc is centrally located with respect to a width of the object.

10. A system for use in moving people or cargo, the system comprising:

a track having a length;

an object configured to travel along the track;

a drive rail system comprising at least one electroconductive rail extending along the length of the track;

at least one driving disc coupled to the object to rotate about a rotary axis with respect to the object, the at least one driving disc having a plurality of permanent magnets spaced about the rotary axis, the at least one driving disc being positioned with a portion thereof in close proximity to the electroconductive rail and being controllably rotatable in the presence of the electroconductive rail to create an eddy current therebetween to accelerate and decelerate the object with respect to the track;

wherein the at least one driving disc is slidably coupled to the object to move in a transverse direction relative to the object.

11. A system for use in moving people or cargo, the system comprising:

a track having a length;

an object configured to travel along the track;

a drive rail system comprising a plurality of electroconductive rails extending along the length of the track; and

at least one driving disc coupled to the object to rotate about a rotary axis with respect to the object, the at least one driving disc having a plurality of permanent magnets spaced about the rotary axis, the at least one driving disc being positioned with a portion thereof in close proximity to the electroconductive rails and being controllably rotatable in the presence of the electroconductive rails to create an eddy current therebetween to accelerate and decelerate the object with respect to the track;

wherein a total number of the electroconductive rails is one greater than a total number of the driving discs and wherein each of the driving discs is positioned between a pair of the electroconductive rails.

12. A vehicle for transporting people or cargo, along a track having at least one support rail configured to support and guide the vehicle and at least one electroconductive drive rail extending parallel to the support trail, the electroconductive drive rail being positioned at a fixed elevation with respect to the support rail, the vehicle comprising:

at least one driving disc coupled to the vehicle to rotate with respect to the vehicle about a rotary axis, the rotary axis being at least substantially perpendicular to a desired direction of vehicular travel, the at least one driving disc having a plurality of permanent magnets spaced apart from and about the rotary axis, the at least one driving disc being positioned on the vehicle such that a portion of the at least one driving disc is at least proximate the fixed elevation during operation, the at least one driving disc being movable coupled to the vehicle to controllably move transversely with respect to the vehicle such that the at least one driving disc can be maintained in a desired relationship with respect to the electroconductive drive rail during operation;

wherein the at least one driving disc is coupled to at least one rigid linkage having at least one roller at its distal end, the roller being apart from the at least one driving disc by a predetermined distance such that the roller contacts the support rail during operation, and such that the at least one driving disc remains a fixed distance from the support rail during operation to maintain the desired relationship.

13. The vehicle of claim 12 wherein the rigid linkage has a pair of rollers at its distal end, the rollers being spaced apart from the at least one driving disc by a predetermined distance such that the rollers contact opposing sides of the support rail during operation, and such that the at least one driving disc remains a fixed distance from the support rail during operation to maintain the desired relationship.

14. The vehicle of claim 12 wherein the at least one driving disc is coupled to two opposing rigid linkages each having a roller at its distal end, the rollers being spaced apart from the at least one driving disc by a predetermined distance such that the rollers contact the opposing support rails during operation, and such that the at least one driving disc remains a fixed distance from the support rail during operation to maintain the desired relationship.

15. The vehicle of claim 12 wherein the at least one driving disc is coupled to two opposing rigid linkages each having a pair of rollers at its distal end, the pairs of rollers being spaced apart from the at least one driving disc by a predetermined distance such that the rollers contact opposing sides of the opposing support rails during operation, and such that the at least one driving disc remains a fixed distance from the support rail during operation to maintain the desired relationship.