BACKGROUND OF THE INVENTION
This is continuation-in-part of pending patent application Ser. No. 11/126,920 filed May 10, 2005, which in turn was a continuation-in-part of patent application Ser. No. 10/833,958 filed Apr. 28, 2004, which in turn was a continuation-in-part of patent application Ser. No. 09/854,682 filed May 15, 2001, which filing date is hereby claimed.
Generally, we mankind, have had major problems with relation to batteries that is, devices for storing energy for use when desired. The problems include: the charging of batteries, servicing of batteries, the non-reusability of batteries, and the highly dangerous, hazardous, and explosive, environmentally-polluting chemicals used in existing electrochemical batteries, and their heavy weight.
The thermo-dynamic battery unit of the invention solves all of these issues. It generates clean, usable energy, while remaining chemical and explosion free, lightweight, rapidly rechargeable, economical, and environmentally-friendly.
- OBJECTS OF THE INVENTION
The present invention relates generally to a device for use in any application for providing power for any electrical device that employs battery power to function. More explicitly, the present invention discloses an innovative, high power device, which does not generate any harmful, environmentally-polluting residue. The present invention is extremely ecologically compatible in operation and design, actually replenishing clean ozone back into the atmosphere, is long lasting, and is designed to be re-usable unlike conventional units.
The present invention relates generally to a new electric power storage device. More distinctively, it provides and generation of electrical power in the form of compressed gas energy.
Another positive attribute of the present-invention is that the compressed gas is passed through a generator, which exchanges heat with the generator to increase the efficiency of the generator and its driver device. This enhances efficiency of use of energy that is stored and conserved in the thermodynamic battery unit in accordance with the invention.
Another positive attribute of the present invention is that the thermo-dynamic battery unit is modular unit comprised of, and connectable together a compressed air storage for storing energy in the form of compressed air, and Electricity Pressure Mutual Converter for converting the electricity to pressure and pressure to electricity by provided and coupled Expander-Compressor with Motor-Generator in single embodiment of apparatus.
Another positive attribute of the present invention is that by dividing and partitioning the compressed air storage tank into separate smaller modular self-contained energy storing and producing units we can store and recover energy much more efficiently than existing compressed air energy storage systems.
- SUMMARY OF THE INVENTION
Another positive attribute of the present invention is that the working pressure of compressor-expander as much as possible is smaller to gain higher efficiency, which is effortless to manufacture.
A plurality of thermodynamic battery units is connectable to store and generate electrical energy by converting electrical power in the form of compressed gas, and reversing the process by converting compressed gas into the electricity.
A system for storing and generating power from gas includes at least two (2) thermo-dynamic battery units connectable in series to one another for controllable compression and expansion of the gas to drive a compressor and generator. A method in accordance with the invention comprises providing at least two (2) thermo-dynamic battery units connectable in series with one another for controllable compression and expansion of the gas to drive a compressor and generator.
The present invention provides a unique battery system, which stores and produces, from compressed gas energy, clean usable electrical power for use in any application in any device that can employ battery power to operate. The invention is much lighter for the same energy output than existing units, can be charged in rather than hours, and operates chemical and explosion free. Environmentally safe to operate, and operates at or about 90% efficiency.
BRIEF DESCRIPTION OF DRAWINGS
A system and method in accordance with the invention for storing, disseminating, and utilizing energy in the form of gas compression and expansion comprises a method for storing energy including the steps of providing power to compress gas in at least two stages with at least two pressure changes, to a receptacle where the gas is compressed and held for dissemination to provide power. The method provides for dissemination of stored energy when proceeding in reverse, i.e., when said compressed gas is expanded with at least two pressure changes and the output is coupled to at least one generator. A system in accordance with the invention operates in accordance with said method and employs apparatus to implement said method with at least two expanders-compressors coupleable to at least one motor-generator. When operated in the opposite manner, which is if electrical power supplied to motor-generator said system compressing gas and provides energy storage in the form of compressed gas.
FIG. 1 is a schematic view of a thermo-dynamic battery unit in accordance with the invention.
DETAILED DESCRIPTION OF THE INVENTION
FIG. 2 is a schematic view of an arrangement in accordance with the invention of a plurality of thermo-dynamic battery units.
As shown in FIG. 1, a thermo-dynamic battery unit in accordance with the invention comprises a Electricity Pressure Mutual Converter 1 for converting electricity to compressed gas and compressed gas to electricity, a tank 2 for storing compressed gas, a Motor-Generator 7 connected with at least two Expander-Compressor sets 5, 9 in series with common shaft 6, a heat exchanger chamber space 8 between Motor-Generator armature and rotor, four check valves 10 and a control unit 4, including a flow control valve 3 and 11 for controlling release flow and direction of compressed gas from and to tank 2. Tank 2, control unit 4, and generator 7 are of conventional type.
Electricity Pressure Mutual Converter 1 able to work in two mode; compression and expansion. In the compression mode, while the electricity applied to Motor-Generator 7, the Motor-Generator 7 rotates the Expander-Compressor van set 5,9 toward one of two possible directions, and force the gas to compress. In the enclosed heat exchanger chamber 8 a space where the gas exchanges heat with Motor-Generator, which according under the lows of thermodynamic contributes to increase the gas pressure. The check vales 10 arranged such so the pressurized gas will be forced to flow to the direction of the tank 2 for storage. The control unit 4 controls the direction and flow rate of gas by flow control valves 3 and 11.
In the expansion mode the gas released from tank 2 under control of unit 4 passing through first Expander-Compressor van set 5 will cause expand the gas from smaller space to larger space, which will force the common drive shaft 6 to turn towards the other direction of said two possible directions. As long as Motor-Generator rotor attached to the same common drive shaft 6 will cause Motor-Generator 7 to operate, which in turn generates electricity and some incidental heat. Generated heat expands the released gas causing the second set of fan blades Expander-Compressor van 9 to operate, which is transmitted back to Motor-Generator 7 with a common drive shaft 6 to operate Motor-Generator 7. Check valves 10 arranged such so the expanding gas flows towards the vent.
The released gas is in thermal contact with heat exchanger chamber 10 8, space between the Motor-Generator 7 armature and rotor, long enough to achieve expected results. At the same time, the released gas—which under the laws of thermodynamics cools as it expands upon release—cools Motor-Generator 7 and increases generator efficiency thereby. Generating of electricity is thus controlled by control unit 4 and flow control valve 3 and 11.
As shown in FIG. 2, a thermo-dynamic battery system comprises a plurality of individual Electricity Pressure Mutual Converter 12, in the case depicted herein numbering four. This number is provided for specificity; the invention in this embodiment may operate with as few as two individual units as well as with an unlimited number thereof.
Each individual unit 12 operates in the same manner as thermo-dynamic battery unit 1 described above. In the present embodiment, the respective units 12 are depicted as connected to one another within a tank 14. Each unit 12 is held in place by conventional means and is sealed by O-rings 17. The space between each Electricity Pressure Mutual Converter intended to store compressed gas.
Each unit 12 includes a flow control valve 18 controlled by a controller regulator 20. In each unit 12 the gas is compressed and released controllably and simultaneously at a predetermined different pressure levels to create equal pressure differentials between tanks. As depicted, the unit 12 at the left end of tank 14 is at the highest pressure, shown here as PN and unit 12 at the right hand end of tank 14 is at the lowest pressure, shown herein as P1. The P1 unit 12 is connectable to a vent 22 to ambient. Pressure may be 5000 psi or higher in particular applications. Pressure differential between the input and output of units 12 is as low as possible and equal each and every one, to increase the overall system efficiency.
As depicted in FIG. 2, volume of the PN unit 12 is given as VN Similar considerations apply to intermediate units 12, whose pressure and volume, respectively, are P3, V3 and P2, V2. Pressure in units 12 diminishes from the highest pressure, to the lowest pressure P1 with intermediate units 12 having diminishing pressure from left to right as shown in FIG. 2. For example, in the specific configuration depicted, P3 is larger than P2, which in turn is larger than P1.
As further depicted in FIG. 2, each unit 12 contributes power when the system is operated as stated below. For ease of reference, said power—in this case, voltage—is symbolized by UN through U1. Said individual contributions to the power may be employed in series, for increased voltage or in parallel for increased current.
A charging valve 26 controls charging of tank 14 with compressed gas for storage of energy therein. This may be employed for a fast or booster charge.
In the embodiment depicted in FIG. 2, a negative electrical terminal 23 is disposed at the high pressure end of tank 14 and a positive terminal 24 is disposed of the low pressure end of tank 14. The phrase “high pressure end” and “low pressure end” means in this context the location in tank 14 where, respectively, the highest pressure unit 12 (the PN unit) and the lowest pressure unit 12 (the P1 unit 12) are located.
In operation, controller regulator 20 is operable to regulate each and individual Electricity Pressure Mutual Converter to compress gas for storage and expand for electricity generation subject to load sensor 25 and pressure sensors 27 connected hereto. During the compression mode the electrical power applied to terminals 23 and 24 and the Electricity Pressure Mutual Converter under the influence of differential pressure simultaneously Electricity Pressure Mutual Converter will force to compress the gas and stored for power generation. Upon release of gas under the influence of differential pressure such that from each unit 12, voltage is generated as described in connection with the system of FIG. 1. Load sensor 25 and pressure sensor 27 regulates operation of controller regulator 20 such that for a smaller load to diminish flow of gas and for higher loads to increase gas flow. Such devices are in common usage at present as, for example, in power generating facilities which seek to maximize efficiency by matching power generation to power demand.
As noted above, the individual power outputs of units 12 can be placed in parallel to provide a larger current or in series for increased voltage. In addition, each unit 12 may be arranged (not shown) outside of partitioned tank 14 connected with the pipes.
A method for storing and using energy and employing same for generating electric power includes the steps of: (1) applying electrical power to Electricity Pressure Mutual Converter for controllably compressing gas (2) storing energy in the form of compressed gas; (3) controllably releasing said gas to operate an Electricity Pressure Mutual Converter. The gas may comprise air, and the gas may pass in thermal contact with a Motor-Generator for improved efficiency.
A method for storing energy and generating power comprises the steps of applying electrical power to Electricity Pressure Mutual Converter for controllably compressing gas, storing compressed gas for controllable release to drive an Electricity Pressure Mutual Converter and releasing the compressed gas in at least two pressure drops, thereby reducing energy loss from expansion of compressed gas. This method may be implemented by means of the apparatus depicted in FIG. 2 or similar devices. The method of the invention may be employed with a plurality of pressure drops, numbering two or more.
The foregoing-described system and method for storing, disseminating, and utilizing energy in the form of compressed gas, includes a method for storing energy in the form of gas compression by substantially reversible the foregoing-described method for generating power, using the same apparatus. Under the method, power is supplied to Electricity Pressure Mutual Converter 12 and as a result they function as motors causing the expanders therein to reverse such that air will be compressed through the above-described pressure changes for storage in tank 14.
Efficiency in the forward cycle as well as the reverse cycle is promoted by the multiple pressure change aspect of the invention.
In the foregoing manner, energy losses from expansion of compressed gases are minimized, and efficiency improved.
The within specification and drawings disclose particular embodiments of the invention, which is defined by the appended claims interpreted in light of the specification and drawings.