Not Applicable
Not Applicable
1. Field of the Invention
The invention relates generally to technologies based on the Earth magnetic field and more particularly to methods and systems for using the Earth's magnetic field as a source of energy for powering electric vehicles or other devices.
2. Description of the Related Art
With growing demand for renewable energy, many consumers are choosing hybrid or electric vehicles. However, there are many obstacles to overcome for electric cars to become practical for widespread use. Many consumers are concerned with the range they are able to drive before requiring time-consuming charging, and much of today's infrastructure would have to be changed to alleviate this problem. Also, since the electricity is often generated initially through fossil fuels, electric vehicles are not using a truly renewable resource for power. There is still a need for a renewable resource to power vehicles without frequent and time-consuming charging.
It is known in the prior art that moving a conductive coil of wire through a magnetic field can produce an electrical current in the wire. The direction of the current through the wire is dependent on the relative direction of motion between the coil of wire and the magnetic field, and the voltage V generated by a wire of length l moving through a magnetic field B at velocity v is given by the equation:
V=B×l×v
This concept may be used in the generation of an electrical current for, for example, a vehicle, to address the need for a renewable resource to power vehicles and for avoiding frequent and time-consuming charging.
This Summary is provided to introduce a selection of concepts in a simplified form that are further described below in the Detailed Description. This Summary is not intended to identify key aspects or essential aspects of the claimed subject matter. Moreover, this Summary is not intended for use as an aid in determining the scope of the claimed subject matter.
In one aspect, this invention may have as its objective the ability to generate electricity from the Earth's magnetic field while in motion to supply power to energy storing devices, such as supercapacitors, for example, as means for powering a vehicle.
Using the principle described by the equation above, the voltage from the wire may be supplied into a plurality of energy storing devices, such as supercapacitors. As the vehicle travels, the wires may be moved through the Earth's magnetic field, and may charge the supercapacitors, which may discharge to the motor. The wire may be copper or any other conductive material.
In one exemplary embodiment, a system of wires arranged in any configuration deemed suitable supplying power to supercapacitors discharging to a motor in a vehicle is provided. The supercapacitors may be connected to both the wires which supply the electrical current generated by the Earth's magnetic field, and to the vehicle's motor through a computer interface bus. Thus, an advantage is that the system eliminates the need for the vehicle to be recharged or for the purchase of gasoline or electricity by the user. Another advantage is the overall decrease in the use of electricity generated by fossil fuels.
In another embodiment, a system is provided for retrofitting existing electric vehicles with wires to produce an electrical current from the Earth's magnetic field. A vehicle may also, for example, be constructed with the system built in.
The above embodiments and advantages, as well as other embodiments and advantages, will become apparent from the ensuing description and accompanying drawings.
For exemplification purposes, and not for limitation purposes, embodiments of the invention are illustrated in the figures of the accompanying drawings, in which:
a illustrates the computer assembly of
b illustrates the connection of the voltmeter to the supercapacitor, by closing switches 2-S3 and 2-S4, as shown in
a illustrates the computer assembly of
b illustrates the connection of the wattmeter, motor, and supercapacitor, by closing switches 3-S5 and 3-S6, as shown in
a illustrates the top view of an exemplary circular arrangement of wires.
a-d illustrate an exemplary nested coils arrangement of wires.
a-b illustrate an example of retrofitting an electric vehicle with the nested coils system shown in
c shows an example of a wire connected to a voltmeter.
What follows is a detailed description of the preferred embodiments of the invention in which the invention may be practiced. Reference will be made to the attached drawings, and the information included in the drawings is part of this detailed description. The specific preferred embodiments of the invention, which will be described herein, are presented for exemplification purposes, and not for limitation purposes. It should be understood that structural and/or logical modifications could be made by someone of ordinary skills in the art without departing from the scope of the invention. Therefore, the scope of the invention is defined by the accompanying claims and their equivalents.
V=B×l×v
where V is the voltage generated in volts, B is the Earth's magnetic field, using 3×10−5 Tesla (T) as an example, as the strength may vary, l is the length of the wire, and v is the velocity of the wire.
Switches 1-S1 and 1-S2 are then re-opened after a certain amount of time. As an example, 2-S1 and 2-S2 are opened after 100 milliseconds (ms) of charging the supercapacitor, which disconnects the charge, and switches 2-S3 and 2-S4 are closed (see
a-b illustrate the computer assembly of
where E is the energy in joules (J), c is the capacitance in farads (F), and V is the voltage in the supercapacitor 205 in volts (V).
After some time (again, as an example, after 100 ms), S3 and S4 are then opened and 2-S1 and 2-S2 are again closed (
A system may be provided for the computer 101 to determine when to switch one supercapacitor 105 out for another when only a small amount of energy is left in the one currently supplying power to the motor. For example, when the energy in a first supercapacitor 105 falls to the amount of energy needed for two more seconds of use or other predetermined minimum energy level, a first set of switches associated with the first supercapacitor 1-S5 and 1-S6 may be opened and a first 1-S1 and 1-S2 are closed. Next, as an example, a second charged supercapacitor 105 is connected to the motor by opening a second 1-S1 and 1-S2, and closing a second 1-S5 and 1-S6. The computer 101 may be able to determine the order that the supercapacitors 105 should be discharged to the motor, battery, or computer 101 itself, and the time of discharge. Thus, it should be apparent that a plurality of supercapacitors is preferably used so that for example continuous power is provided to the motor.
It should be noted that the computer may be operated by any standard means known in the art.
a illustrates the top view of an exemplary circular arrangement of wires 504. An advantage of the arrangement is that it allows there to be wires available at the correct position relative to the lines of flux of the Earth's magnetic field at any given time.
As shown in
As an example, a set of copper wires 504 of a standard 2 AWG gauge may be used in the arrangement illustrated in
A standard round 2 AWG wire has a diameter of 0.654 centimeters (cm). Calculations can be made for an exemplary cylinder with a height of 1 meter (m) and a diameter of 2 m (200 cm), with a slightly larger actual cylinder diameter used to accommodate the unfolded wire loop 511 and the space needed between the wires in the folds so that they do not have electrical contact. The number of times a 2 AWG wire could be folded vertically across that cylinder is 200 cm/0.654 cm=305.8, approximately 305 times. The height 1 m×305 folds gives a total length of 305 m of wire. Using the following equation
V=B×l×v
B=3×10−5 T (an example within the range of the strength of the Earth's magnetic field at the Earth's surface), l=305 m, and v is an assumed velocity of the vehicle of 33.3 meters/second, so V=0.305 volts are obtained from one wire 504.
Since the wires 504 are copper, the resistivity p of the material is known, and calculated to be 0.5217 ohms (Ω) per 1000 m of 2 AWG copper wire using the equation
where R is the resistance in ohms, l is the length of the wire in m and A is the cross-sectional area of the wire in m2. To calculate the resistance for the 305 m wire, (0.5217/1000)·305=0.159Ω. Using this resistance, the power can be calculated with the equation
where V2 is (0.305)2=0.093. Therefore 0.093/0.159=0.585 J/s is the rate at which power can be delivered from or to the supercapacitor 105 while charging, respectively, from a single wire.
The energy stored in a 10,000 F supercapacitor, which may be used as an example, is calculated with the equation
where V2 is (0.305)2=0.093. 0.093×10,000 farads/2=465 joules of energy in one supercapacitor.
A supercapacitor can supply a constant rate of power for a time t, in seconds (s), given by the equation
t=[c·(Vcharge2−Vmin2)]/(2·p)
where Vcharge is 0.305 V as calculated above, and Vmin is a desired 0.1 V remaining in the supercapacitor for optimum performance, and p is the desired rate of power to the motor of 40 J/s. Vcharge2 is (0.305)2=0.093 and Vmin is (0.1)2=0.01. t is [10,000·(0.093−0.01)]/2·40=10.375 s of power by one wire. With for example 152 wires, 152·10.375=1577 s, or approximately 26.2 minutes. Alongside this, the time it takes to charge one supercapacitor is 465 joules/0.585=794.9 s, or approximately 13.2 minutes. With the rate of charge being approximately half of the time it takes to discharge all supercapacitors to 0.1 V, the vehicle may be able to efficiently run at this exemplary velocity with a needed 40 J/s. For any rate of power needed by the motor, using the equation above, the amount of time the supercapacitor can deliver power to the motor can be calculated. The computer 301 may be controlling the order in which the supercapacitors 305 will connect to the wire 304 to charge, then connect to the motor 308 to discharge and provide power, and reconnect to the wire to recharge. The control of the discharge of energy from the supercapacitors 305 may be performed by any means known in the art.
In another embodiment, a larger number of wires may be used, or a number of smaller sets of wires can be used to equal one larger plurality of wires. More wires may also be used in order to supply more power if needed, and more wires may also be used to supply power to other parts of the vehicle, such as the lights, radio, or other components. Each wire may preferably connect via the interface bus 109 to an individual supercapacitor 105.
a-d illustrate an exemplary nested coils arrangement of wires with no electrical contact.
As an example, to achieve a rate of energy supplied to the vehicle motor of 40 J/s, a system of nested coils may be used, as shown in
where l is the length of one coiled wire in m. To find the length, first a coil diameter of 1 m is used. The circumference of one such coil is 2πr=3.1416 m. In one meter length, a wire of 0000 AWG diameter width could fit approximately 85 times (1000 mm/11.684 mm=85.6). Therefore, it takes 3.1416×85=267 m of wire to make 85 coils in a 1 m length of space.
Since 1 V derived from a single wire is desired, a longer length of wire is needed for this example. When 1000 m of wire is used to make coils of the dimensions described above, approximately 1000/267=3.75 m length of space is required to accommodate the coil, and the equation
V=B×l×v
can be used to find the amount of voltage generated from this wire. Using the same assumed variables as described above for the circular arrangement of wires, (3×10−5 T)×(1000 m)×(33.3 m/s)=1 V for a single wire. Since 1 V is generated from 1000 m of wire, and the resistivity is 0.16072Ω per 1000 m at this length, the power generated is
(1)2/0.16072=6.22 J/s. This is the rate at which power can be delivered from or to the supercapacitor while discharging or charging, respectively.
The amount of energy stored in a supercapacitor is found using the equation
where the supercapacitor has a capacitance of 10,000 farads. [(10,000)×(1)2]/2=5,000 J. The amount of time that a supercapacitor can provide a constant output of power is given by
t=[c·(Vcharge2−Vmin2)]/(2·p)
where, again as was described above, Vmin is 0.1 volts left in the supercapacitor for optimum performance and Vcharge is 1. [10,000·(1−0.01)]/2·40=123.75 s, or approximately 2.06 minutes, is therefore the duration of time that a supercapacitor can provide a constant output of power from one wire.
The second coil 604-b, also a 0000 AWG wire, inside of the first coil 604-a may preferably have a smaller diameter of coils in order to fit inside, as shown as an example in
With a coil diameter of 0.92 m, the second wire 604-b can nest inside of the first wire 604-a and the circumference of one coil of the second wire 604-b is (0.92×π)=2.89 m. Using the same equations outlined above, the same amount of power 6.22 J/s can be provided, for 123.75 seconds. With a set of four coils nested one inside of the other (see
The time for recharge of one supercapacitor 305 using one wire coil set 604-c or 604-d is 5000 joules/24.88=200.96 seconds, or approximately 3.36 minutes. Since this is under the 8.25 minutes of constant power from another set, the vehicle may be able to efficiently run at this exemplary velocity of 33.3 m/s, with the computer 301 controlling the order in which the supercapacitors 305 will connect to the wire 304 to charge, then connect to the motor 308 to discharge and provide power, and reconnect to the wire 304 to recharge. The control of the discharge of energy from the supercapacitors 305 may be performed by any means known in the art.
In another embodiment, a larger number of wires may be used, or a number of smaller sets of wires can be used to equal one larger plurality of wires. More wires may also be used in order to supply power to other parts of the vehicle, such as the lights, radio, or other components. Each wire may preferably connect via the interface bus 109 to an individual supercapacitor 105.
a illustrates a side view of an electric vehicle retrofitted with a system of nested coiled wires as in
c shows an example of a wire 704 connected to a voltmeter 706. What follows is a succinct presentation of the experiments conducted to arrive at the systems and methods disclosed above. A vehicle was used to carry the wire 704 connected to a voltmeter 706 by circuits 7-C3 and 7-C4. The wire 704 and voltmeter 706 were attached to the vehicle by a wooden board 717, which does not impede the magnetic field and provided insulation for the wire 704, protecting it from any interference from the vehicle. The experiment was performed on a small scale, driving the vehicle with only one wire 704 and taking readings from the voltmeter 706. The experiment showed that the voltage collected by the wire 704 was sufficient to provide enough energy to an electric vehicle as disclosed above if the number of wires were to be increased.
It should be understood that retrofitting a vehicle with the systems described herein and exemplarily shown in
It should be understood that the inventive aspects disclosed herein may be adapted for various other applications, such as, for example, powering a space station, drones, airplanes or satellites, which may eliminate reliance on solar panels.
It may be advantageous to set forth definitions of certain words and phrases used in this patent document. The term “couple” and its derivatives refer to any direct or indirect communication between two or more elements, whether or not those elements are in physical contact with one another. The terms “include” and “comprise,” as well as derivatives thereof, mean inclusion without limitation. The term “or” is inclusive, meaning and/or. The phrases “associated with” and “associated therewith,” as well as derivatives thereof, may mean to include, be included within, interconnect with, contain, be contained within, connect to or with, couple to or with, be communicable with, cooperate with, interleave, juxtapose, be proximate to, be bound to or with, have, have a property of, or the like.
As used in this application, “plurality” means two or more. A “set” of items may include one or more of such items. Whether in the written description or the claims, the terms “comprising,” “including,” “carrying,” “having,” “containing,” “involving,” and the like are to be understood to be open-ended, i.e., to mean including but not limited to. Only the transitional phrases “consisting of” and “consisting essentially of,” respectively, are closed or semi-closed transitional phrases with respect to claims. Use of ordinal terms such as “first,” “second,” “third,” etc., in the claims to modify a claim element does not by itself connote any priority, precedence or order of one claim element over another or the temporal order in which acts of a method are performed. These terms are used merely as labels to distinguish one claim element having a certain name from another element having a same name (but for use of the ordinal term) to distinguish the claim elements. As used in this application, “and/or” means that the listed items are alternatives, but the alternatives also include any combination of the listed items.
Although specific embodiments have been illustrated and described herein for the purpose of disclosing the preferred embodiments, someone of ordinary skills in the art will easily detect alternate embodiments and/or equivalent variations, which may be capable of achieving the same results, and which may be substituted for the specific embodiments illustrated and described herein without departing from the scope of the invention. Therefore, the scope of this application is intended to cover alternate embodiments and/or equivalent variations of the specific embodiments illustrated and/or described herein. Hence, the scope of the invention is defined by the accompanying claims and their equivalents. Furthermore, each and every claim is incorporated as further disclosure into the specification and the claims are embodiment(s) of the invention.
This application claims the benefit of U.S. Provisional Application No. 61/999,191, filed Jul. 17, 2014, and U.S. Provisional Application No. 62/070,211, filed Aug. 19, 2014, which are hereby incorporated by reference, to the extent that they are not conflicting with the present application.
Number | Date | Country | |
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61999191 | Jul 2014 | US | |
62070211 | Aug 2014 | US |