High efficiency electro-mechanical energy conversion device

• US 6,013,963 A
• Filed: 02/05/1999
• Issued: 01/11/2000
• Est. Priority Date: 02/05/1999
• Status: Expired due to Fees

• Current Assignee: Emec Energy, L.L.C.
• Original Assignee: Emec Energy, L.L.C.
• Inventors: Shelton, Roy C. Jr.
• Primary Examiner(s): Ramirez, Nestor
• Assistant Examiner(s): LE, DANG D
• Application Number:
  US09/244,728
• Time in Patent Office: 340 Days
• Field of Search: 310/179, 310/180, 310/184, 310/194, 310/198, 310/208, 310/156, 310/216, 310/261, 310/265, 310/233, 310/232, 310/236, 310/254, 310/258, 310/259, 310/40, 310/66, 310/67 R, 322/16, 322/17, 322/46, 322/51, 322/52, 318/138, 318/254, 318/139, 318/722, 318/724, 318/731-734, 318/738, 318/244, 318/245, 318/491, 318/494, 318/498, 318/499, 318/500
• US Class Current: 310/179
• CPC Class Codes: H02K 1/2781 Magnets shaped to vary the mechanical air gap between the magnets and the stator
• CPC Class Codes: H02K 21/14 with magnets rotating within the armatures
• CPC Class Codes: H02K 23/58 Motors or generators without iron cores
• CPC Class Codes: H02K 25/00 DC interrupter motors or generators
• CPC Class Codes: H02K 3/47 Air-gap windings, i.e. iron-free windings
• CPC Class Codes: H02K 53/00 Alleged dynamo-electric perpetua mobilia

Abstract

An Electro-Mechanical Energy Conversion (EMEC) device and a method of electro-magnetically converting electrical energy to mechanical energy and electrical energy. The EMEC device comprises a stator; a rotor; a direct current power source; a commutator, and flourescent lamps acting as a non-linear, capacitive, voltage-limiting load. Four armature coils of a first magnetic polarity are concentrically mounted on a first side of the outer surface of a non-magnetic cylindrical stator casing, and four armature coils of an opposite polarity are concentrically mounted on an opposite side of the stator casing. Each coil is wound with an average of 6,650 turns of 34 AWG gauge teflon-coated wire. The rotor is constructed of non-magnetic material, and is rotationally mounted in the stator casing. A plurality of neodymium iron-boron permanent magnets are circumferentially mounted on the rotor. The magnets on a first side of the rotor are mounted with a first outward polarity, and the magnets on an opposite side of the rotor are mounted with an opposite outward polarity. The power source is connected to the coils and produces an output of 0-5,000 volts at 30 to 40 milliamperes maximum. The flourescent lamps are connected to the coils for rapidly dumping magnetic energy from the coils when the polarity is reversed. The commutator reverses the polarity of the first and second coils every 180° of rotor rotation, and guides the magnetic energy from the coils to the load.

Claims

1. An electro-mechanical energy conversion device comprising:

a stator comprising a first coil of a first magnetic polarity mounted on a first side of the stator and a second coil of an opposite polarity mounted on an opposite side of the stator;

a rotor rotationally mounted in the stator, the rotor including at least two permanent magnets mounted circumferentially thereon, a first magnet on a first side of the rotor having a first outward polarity and a second magnet on an opposite side of the rotor having an outward polarity opposite the first polarity;

a direct current power source connected to the coils, the output of the power source being at least 450 volts in a range of 30 to 40 milliamperes;

a switching device that reverses the polarity of the first and second coils every 180°

of rotor rotation; and

a non-linear, capacitive, voltage-limiting load connected to the coils for rapidly dumping magnetic energy from the coils when the switching device reverses the polarity of the first and second coils.

2. The electromechanical energy conversion device of claim 1 wherein the switching device is a commutator that includes means for guiding the magnetic energy from the coils to the non-linear, capacitive, voltage-limiting load.

3. The electromechanical energy conversion device of claim 1 wherein the first coil comprises four individual coils of the first polarity, and the second coil comprises four individual coils of the opposite polarity.

4. The electromechanical energy conversion device of claim 3 wherein each individual coil comprises at least 6,000 turns of approximately 34 AWG gauge teflon-coated wire.

5. The electro-mechanical energy conversion device of claim 1 wherein the stator includes a cylindrical stator casing constructed entirely of non-magnetic material, the stator casing having an inner surface and an outer surface, and the first and second coils being mounted on the outer surface of the stator casing.

6. The electro-mechanical energy conversion device of claim 5 wherein the four individual coils of the first polarity are similar rectangular coils concentrically mounted on the first side of the stator casing, and the four individual coils of the opposite polarity are similar rectangular coils concentrically mounted on the opposite side of the stator casing.

7. The electro-mechanical energy conversion device of claim 1 wherein the rotor is constructed of a non-magnetic material.

8. The electro-mechanical energy conversion device of claim 7 wherein the at least two permanent magnets comprise two groups of magnets, a first group on a first side of the rotor in which each magnet has a first outward polarity, and a second group on an opposite side of the rotor in which each magnet has an outward polarity opposite the first polarity.

9. The electro-mechanical energy conversion device of claim 8 wherein each of the plurality of permanent magnets has an outer surface, and the rotor has a diameter such that a total distance measured between the outer surface of any one of the permanent magnets and a coil directly overlying the magnet is approximately 0.4 inches.

10. The electromechanical energy conversion device of claim 9 wherein the permanent magnets are grade 35 neodymium iron-boron magnets.

11. An electro-mechanical energy conversion device comprising:

a stator comprising a first coil of a first magnetic polarity mounted on a first side of the stator and a second coil of an opposite polarity mounted on an opposite side of the stator;

a rotor rotationally mounted in the stator, the rotor including at least two permanent magnets mounted circumferentially thereon, a first magnet on a first side of the rotor having a first outward polarity, and a second magnet on an opposite side of the rotor having an outward polarity opposite the first polarity;

a direct current power source connected to the coils, the output of the power source being at least 450 volts in a range of 30 to 40 milliamperes, the power source comprising;

a regulated, voltage-controlled voltage multiplier; and

a wet cell connected in series with the voltage multiplier; and

a switching device that reverses the polarity of the first and second coils every 180°

of rotor rotation.

12. An electro-mechanical energy conversion device comprising:

a stator comprising a first coil of a first magnetic polarity mounted on a first side of the stator and a second coil of an opposite polarity mounted on an opposite side of the stator;

a rotor rotationally mounted in the stator, the rotor including at least two permanent magnets mounted circumferentially thereon a first magnet on a first side of the rotor having a first outward polarity, and a second magnet on an opposite side of the rotor having an outward polarity opposite the first polarity;

a direct current power source connected to the coils, the output of the power source being at least 450 volts in a range of 30 to 40 milliamperes, the power source comprising;

a bank of batteries connected in series to produce at least 450 volts at 30 to 40 milliamperes; and

a wet cell connected in series with the bank of batteries; and

a switching device that reverses the polarity of the first and second coils every 180°

of rotor rotation.

13. An electro-mechanical energy conversion device comprising:

a stator comprising;

a cylindrical stator casing constructed of non-magnetic material, the stator casing having an inner surface and an outer surface;

a first armature coil of a first magnetic polarity comprising four similar rectangular coils concentrically mounted on a first side of the outer surface of the stator casing, each rectangular coil comprising at least 6,000 turns of approximately 34 AWG gauge teflon-coated wire; and

a second armature coil of a polarity opposite the first polarity comprising four similar rectangular coils concentrically mounted on a side of the outer surface of the stator casing opposite the first side, each rectangular coil comprising at least 6,000 turns of approximately 34 AWG gauge teflon-coated wire;

a rotor constructed of non-magnetic material rotationally mounted in the stator casing, the rotor including a plurality of permanent magnets mounted circumferentially thereon, the magnets on a first side of the rotor having a first outward polarity, and the magnets on an opposite side of the rotor having an opposite outward polarity, each of the plurality of permanent magnets having an outer surface, and the rotor having a diameter such that a total distance measured between the outer surface of any one of the permanent magnets and a coil directly overlying the magnet is approximately 0.4 inches;

a direct current power source connected to the coils, the power source comprising;

a regulated, voltage-controlled voltage multiplier with an output of 0-5,000 volts at to 40 milliamperes maximum; and

a wet cell connected in series with the voltage multiplier;

a non-linear, capacitive, voltage-limiting load connected to the coils for rapidly dumping magnetic energy from the coils; and

a commutator comprising;

means for reversing the polarity of the first and second coils every 180°

of rotor rotation; and

means for guiding the magnetic energy from the coils to the non-linear, capacitive, voltage-limiting load prior to reversal of the polarity.

14. An electromechanical energy conversion device comprising:

a non-magnetic cylindrical stator casing having an outer surface and an inner surface;

a plurality of armature coils mounted on the outer surface of the stator casing, said armature coils comprising at least one coil of a first magnetic polarity on a first side of the stator casing and at least one coil of an opposite polarity on an opposite side of the stator casing, said armature coils producing a magnetic field which is not shielded by the stator casing;

a rotor rotationally mounted along the longitudinal axis of the cylindrical stator casing, the rotor having a plurality of permanent magnets mounted circumferentially thereon, the magnets on a first side of the rotor having a first outward polarity, and the magnets on an opposite side of the rotor having an outward polarity opposite the first outward polarity;

a direct current power source connected to the coils, the output of the power source being variable from 0 to 5,000 volts at a maximum current of approximately 40 milliamperes;

a non-linear, capacitive, voltage-limiting load connected to the coils for rapidly dumping magnetic energy from the coils; and

a commutator that operates to reverse the polarities of the armature coils in a manner so as to rotate the rotor.

15. The electro-mechanical energy conversion device of claim 14 wherein each of the plurality of permanent magnets has an outer surface, and a total distance measured between the outer surface of any one of the permanent magnets and a coil directly overlying the magnet is approximately 0.4 inches.

16. The electro-mechanical energy conversion device of claim 15 wherein the armature coil comprises four coils of the first polarity and four coils of the second polarity.

17. The electro-mechanical energy conversion device of claim 16 wherein each coil of the first polarity and each coil of the second polarity is wound with at least 6,000 turns of wire which is approximately 34 AWG gauge.

18. The electro-mechanical energy conversion device of claim 17 wherein the plurality of permanent magnets are grade 35 neodymium iron-boron magnets.

19. The electro-mechanical energy conversion device of claim 18 wherein the direct current power source comprises:

a regulated, voltage-controlled voltage multiplier; and

a wet cell connected in series with the voltage multiplier.