ENERGY RECOVERY SYSTEM

• US 20090057084A1
• Filed: 10/09/2008
• Published: 03/05/2009
• Est. Priority Date: 06/30/2004
• Status: Abandoned Application

• Current Assignee: Energy Recovery Technology, Inc.
• Original Assignee: Energy Recovery Technology, LLC
• Inventors: Mahawili, Imad
• Application Number:
  US12/248,553
• Publication Number:
  US 20090057084A1
• Time in Patent Office: Days
• US Class Current: 191/10
• CPC Class Codes: B60L 2200/26 Rail vehicles
• CPC Class Codes: B60L 5/005 without mechanical contact between the collector and the power supply line
• CPC Class Codes: B60L 7/10 Dynamic electric regenerative braking B60L7/22 takes precedence
• 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

Abstract

An energy recovery system including a device that produces a magnetic field adapted for mounting to a vehicle and a stationary conductor adapted for placing in or adjacent the path of the vehicle wherein the magnetic field induces current to flow through the conductor when the vehicle moves past the conductor. The vehicle may be an automobile, a truck, a train, or other type of vehicle. When used in conjunction with a train, the energy recovery system may be designed to recover energy from non-locomotive train cars in addition to, or in lieu of, the train locomotive. Kinetic energy that would otherwise be lost to heat energy through the application of brakes to the non-locomotive cars can thereby be recovered and re-used.

Claims

1. A train car comprising:

a vehicle frame having a first end, a second end, and an underside;

a first bogie positioned near said first end and attached to the underside of said vehicle frame;

a second bogie positioned near said second end and attached to the underside of said vehicle;

a device adapted to generate a magnetic field positioned underneath said vehicle frame; and

a controller adapted to activate said device such that the magnetic field generated by said device intersects with a conductor positioned off-board said train car and induces a voltage in said conductor thereby converting a portion of the train car'"'"'s kinetic energy to electrical current that flows through said conductor.

2. The train car of claim 1 wherein said device includes a permanent magnet and said controller activates said device by physically moving said device to a position nearer to the conductor.

3. The train car of claim 1 wherein said device is attached to one of said first and second bogies.

4. The train car of claim 1 wherein said device includes a coil and said controller is adapted to activate said device by feeding an electrical current through said coil.

5. The train car of claim 1 further including second, third, and fourth devices adapted to generate magnetic fields, said second device positioned adjacent a first wheelset of said first bogie, said third device positioned adjacent a second wheelset of said first bogie, said fourth device positioned adjacent a first wheelset of said second bogie, and said device positioned adjacent a second wheelset of said second bogie.

6. The train car of claim 5 wherein said controller is adapted to activate and deactivate said device, said second device, said third device, and said fourth device substantially simultaneously,

7. The train car of claim 1 wherein said train car includes a connector in communication with said controller whereby said controller may receive a control signal through said connector indicating when said controller should activate said device, said connector being adapted to couple with an associated connector on an adjacent train car.

8. The train car of claim 7 wherein said control signal indicates a degree to which said device should be activated.

9. The train car of claim 8 wherein said controller responds to control signals of increasing degrees in at least one of the following maimers:

(a) said controller physically moves said device to positions nearer and nearer to the conductor; and

(b) said controller increases an electrical current flowing through a coil that is included within said device.

10. The train car of claim 1 further including a brake adapted to move into and out of physical contact with a structure associated with a wheel on said train car whereby said brake retards motion of said train car when said brake is in physical contact with said structure.

11. The train car of claim 10 wherein said controller is adapted to control said brake in addition to said device.

12. A train system comprising:

a track having a rail;

a coil positioned adjacent said rail;

a non-locomotive train car;

a device attached to said train car and adapted to generate a magnetic field; and

a controller adapted to activate said device such that the magnetic field generated by said device intersects with said coil and induces a voltage in said coil thereby converting a portion of the train car'"'"'s kinetic energy to electrical current that flows through said coil.

13. The system of claim 12 further including:

a second coil; and

a second device attached to said train car and adapted to generate a second magnetic field, said second device adapted to be activated by said controller such that the second magnetic field intersects with said second coil and induces a voltage in said second coil thereby converting a portion of the train car'"'"'s kinetic energy to electrical current that flows through said second coil.

14. The system of claim 13 wherein said track includes a plurality of rails and said coil is positioned adjacent a first one of said rails and said second coil is positioned adjacent a second one of said rails.

15. The system of claim 14 wherein said train car includes a connector in communication with said controller whereby said controller may receive a control signal through said connector indicating when said controller should activate said device and said second device, said connector being adapted to couple with an associated connector on an adjacent train car.

16. The system of claim 15 wherein said control signal indicates a degree to which said device and said second device should be activated.

17. The system of claim 16 wherein said controller responds to control signals of increasing degrees in at least one of the following manners:

(a) said controller physically moves said device and said second device to positions nearer and nearer to said coil and said second coil, respectively; and

(b) said controller increases an electrical current flowing through a first conductor that is included within said device and a second conductor that is included within said second device.

18. The system of claim 12 wherein said coil is coupled to an energy storage device that stores said electrical energy for later use.

19. The system of claim 12 wherein said track is positioned on an incline and said energy storage device is adapted to transfer said electrical energy to another train car positioned on another track, said another train car moving in an opposite direction to said train car.

20. The system of claim 18 wherein said energy storage device supplies said electrical energy to an electrolysis system for generating hydrogen from water.

21. A method of recovering energy from a train comprising:

providing a regenerative brake on a non-locomotive train car; and

using said regenerative brake to convert kinetic energy of said non-locomotive train car to electrical energy.

22. The method of claim 21 further including positioning a first portion of said regenerative brake on-board said non-locomotive train car and a second portion off-board said non-locomotive train car.

23. The method of claim 22 wherein said second portion is positioned adjacent a plurality of tracks over which the non-locomotive train car rides.

24. The method of claim 23 wherein said second portion includes a plurality of coils adapted to transfer electrical energy to an energy storage unit.

25. The method of claim 22 wherein said first portion includes at least one of a permanent magnet and a coil.

26. The method of claim 22 further including positioning said second part adjacent in an area of a train track where the train track declines or where the train often slows down or stops.

27. The method of claim 22 further including:

positioning said second part adjacent an area of a first train track wherein the train track declines; and

transmitting said electrical energy to a second train on a second train track such that said second train uses said electrical energy to help move the second train up an inclined region of said second train track.

28. The method of claim 21 wherein said regenerative brake comprise a rotor and a stator and said method further includes:

positioning said rotor on one of a wheel of said train car or a rotational component on said train car that rotates in conjunction with said wheel; and

positioning said stator on said train car in proximity to said rotor whereby said electrical energy is generated on board said non-locomotive train car.