Patent Application
20170114757
Field of Invention
The present invention relates to the technical field of rotating electrical machines, in particular high speed (Greater than 1000 rpm) Rotor Generators and Turbine Shaft Systems utilized in the utility power production field.
Prior Art
The following is a tabulation of some prior art that presently appears relevant:
Production of rotating energy via a prime mover to power a shaft system or a rotating generator is typically limited to mass impulse, fluid pressure reaction turbines, or a combination thereof. Typical modern prime mover turbines employed in the power production industry have limitations of energy input into their shaft systems which are constrained by their turbines fluid properties and or the turbine fluid's enthalpy. In other words, steam, hydraulic, wind and combustion turbines are limited in their ability to produce power (rotating speed and torque) by way of the limiting properties of their working fluids.
As such, storage of energy generated by a turbine into a rotating mass is then limited by the fluid dynamic and thermodynamic constraints of the working fluids.
With the discovery of a constant thrust (force) production from a Asymmetric Radio Frequency Resonant Cavity a new classification of turbine (prime mover) and thus new method of an energy storage machine and system is permitted. This method and machine is described below written and forms the basis of claims for a new type of turbine.
Simply put, linear force acting at a tangent to a rotating shaft, whose force is of a constant nature, that does not separate or largely diminish itself from an imparted rotating mass as the rotating mass accelerates permits unceasing energy injection into said rotating mass. Hence, by way of the principles of force production from the asymmetric radio frequency resonant cavity, it acting as a linear force producing thruster, a new type of turbine is now created.
Said turbines rotating mass can couple to any type of conventional torque coupled system, like for example: a pump turbine, fan, blower, jet turbine, jack shaft, compressor shaft, flywheel, generator rotor, or any adapted shaft rotational assembly.
The application of the principle of constant force (or pressure) by way of the aforesaid thruster permits the invention, the “Rotating, Self-Excited, Asymmetric Radio Frequency Resonant Cavity Turbine, for Energy Storage & Power Production.”
Present rotor-dynamic energy storage systems have an upper limit of internal energy in the form of rotating inertia. The principle limitation is that of the energy input method. Input energy to the rotors effective flywheel or rotating inertial mass is constrained in relation to that of the maximum input powers and or rotating speeds of modern prime movers.
Modern prime movers such as electric motors, fluid turbines, combustion turbines, rotating reciprocating engines, etc. all have the limitations of fluid impulse rate, reactive fluid pressure reduction, gaseous expansion, and or limited rotating electromagnetic field speeds. Again the above-written limitations discussed.
To restate, the present art of prime mover construction and operation in the practical industry of power production is based on enthalpy consumption (reactive and impulse) to develop rotating power. This creates maximum rotational speed limitations on the rotating shaft system.
For motors it is the limitation of power available produced from another prime mover or potential energy source that limits rotational speed principally. For that of a synchronous motor the maximum rotating electromagnetic field frequency of the stator is a limiting variable in ensuring a limit to the motors rotational speed. As is the Current resistance losses in the motor.
The invention outlined utilizes a different type of thermodynamic process. One that utilizes the constant unceasing force generated from an asymmetric radio frequency resonant cavity thruster.
By use of the asymmetric radio frequency resonant cavity the thruster force developed is utilized to create an unceasing constant force acting against the rotors resistance and with the shaft systems existing rotating inertia. Accumulative energy injection into the systems rotor body then permits energy storage up to essentially the limitation of the rotors designed mechanical integrity.
A low power exciter input into the shaft system will result in time accumulated energy storage magnitudes beyond the present modern art. Energy can now be stored in terms of rotating inertia in the shaft systems mass by way of the asymmetric radio frequency resonant cavities constant non-separating force production.
To elaborate further, the claimed invention differs in that modern industrial turbines are powered generally from, hydraulic or fluid potential energy and flow, or combustion gas expansion. These modern turbines all are limited in terms of shaft power output in terms of the working fluids pressure and velocity. This novel turbine will produce real work from the recently pier reviewed and vetted force generated by the Asymmetric Radio Frequency Resonant Cavity. As such, a force (and thus torque) of a constant nature, which does not separate itself from the imparted rotating mass will permit unceasing energy injection into the rotating elements of the shaft system.
The shaft system may now be also called a turbine in that it is prime mover utilizing the unconventional asymmetric radio frequency resonant cavities net force as essentially a permanently driven thruster.
The term thruster must be further specified in that the thruster employed for torque production in the invention differs from conventional thrusters that require fuel mass. Other classes of conventional thrusters such as ion thrusters and propellant powered thrusters require for their process a finite volumetric fuel or mass supply and are subject to the limitations of its working fluids and exhaust velocities. As a result of a finite fuel supply other thrusters utilized on a shaft system would have little design benefits in that the impulse imparted to the rotating shaft system would be over a relatively small time period only if independently fueled. Any permanantly supplied mass fuel would also limit a rotor speed by virtue of it fluid dynamic properties. A microwave, radio or electromagnetic thruster, that which is an asymmetric radio or microwave frequency resonant cavity thruster is utilized in the invention. It is capable of doing real work and injecting energy to accumulate rotating inertia into the turbines rotating shaft system from relatively low electrical power source. It this said thrusters ability to apply constant non-separating force for long durations of time that permits the invention; Rotating, Self Excited, Asymmetric Radio Frequency Resonant Cavity Turbine.
The magnitude of rotating energy achievable from the turbine as bounded within the relatively small volume of the turbines body compared to conventional turbines referenced above can now be orders of magnitude greater than the modern art when comparing the turbines spatial volumes. The higher magnitude of energy density per machine volume of the invention is because of the higher speed it is capable of achieving utilizing the electromagnetic asymmetric radio frequency resonant cavity thrusters principle of constant non-separating force. This makes the invention well suited for use in power plants, and that of drive trains in vehicles.
The invention therefore can utilize low power inputs, often inexpensive in cost like during off hours of production, from an electrical source to essentially store energy in the form of rotating inertia which may later also be extracted quickly from the rotating mass. The invention is an improvement in that there is fundamentally almost no limitation in energy density capable of being stored in the rotating mass other than the governing mechanical integrity of the shaft rotating assembly and its associated constraint system.
The invention described utilizes also an adapted microwave generator such as an adapted Klystron tube assembly to amplify an electric power input signal into the asymmetric resonant cavity thrusters. This embodiment permits high powered microwaves or radio waves (Predetermined for specific designs) to be generated in a mechanically static fashion integrally attached to the rotating shaft system.
The virtue of the adapted Klyston tube embodiment is that the limitations of magnetron microwave power production and the necessary engineering needed to avoid dynamic force compensations to not destroy a magnetron on a rotating shaft system is fundamentally avoided.
The microwave generator, utilizing an adapted Klystron Tube embodiment also benefits the turbine in that microwaves may be generated in a more efficient means in terms of controllable heat production and that lower power input requirements are permitted via the Klystron Tubes inherit ability to amplify a low power input signal needed to generate thrust and a net force in said thrusters.
Conventional rotor dynamics may be applied to construct a new classification of turbine that utilizes the force generated by the asymmetric radio frequency resonant cavity thruster, or adapted Electromagnetic Drive to achieve orders of magnitude higher energy storage and generation power potential than capable with the present prior art. Application of the thrusters principle of non-separating net force to a rotor body enables a new classification of turbine capable of orders of magnitude higher energy storage per volume of machine, in the form of rotational energy and inertia. The energy stored may also be removed from said turbine as to power any machine or device adapted and coupled to said turbine.
This invention is an improvement on what currently exists in terms of flywheel energy storage and turbines in general as a prime mover. Presently modern industrial turbines are powered typically from: Working fluid flow, impulse or reaction forces generated when a fluid expands over the surfaces of typical turbine blades imparting an impulse and reaction force into a turbine rotors blades.
These Newtonian turbines all are limited in terms of shaft power output in terms of the working fluids pressure and velocity. This novel turbine will produce power (work) from the newly discovered force generated by Asymmetric Radio Frequency Resonant Cavity.
As such, a force (and thus torque) of a constant nature, which does not separate itself from the imparted rotating mass will permit unceasing energy injection into the rotating elements of the turbine shaft system.
With this novel application rotating energies will be achievable within a relatively small volume of space compared to conventional turbines referenced above.
Wherever there is a need for a high speed shaft, or large amounts of rotating inertia this invention can furnish this. It can also act a prime mover on a generator power train similar to steam turbines. This would apply to powering a machine, rotating a generators rotor for electric power production, and even to creating high energy high speed rotating electromagnetic fields, or torque coupled high speed rotating fluids like metallic liquid or gaseous state matter or plasma centrifuges. The main advantage being furnishing of ultra high rotational speed and rotational inertia available for consumption from a coupled load.
The thrusters 7 are the principle driving component of the rotating assembly. The thruster 7 is an electrically stimulated asymmetric radio frequency resonant cavity. They receive an optimized electromagnetic signal (microwave) from the custom designed microwave generators 3 such as adapted Klystron Tubes. The thruster 7 itself has an inner metallic body which reflects microwaves internally and creates resonant electromagnetic standing waves inside its optimized asymmetric cavity to produce a net force acting against the thrusters 7 body. Heat generated from the electromagnetic waves interacting with its metallic body are carried away using a fluid cooling system 4.
The thruster 7 may be of a fixed or variable inner geometry type whereby the inner geometry may be made larger or smaller on demand by mechanical means as requested from a typical governor control system for the intention of varying thrust output and controlling the thrusters 7 internal cavity geometry.
The adapted microwave generator assembly 3 takes an electrical power input and generates the optimized electrical signal necessary to optimize thruster 7 force development. The optimized signal may be predetermined to be in the microwave or radio frequency spectrum. The microwave generator assembly 3 is also cooled using a fluid cooling system 4. It will take the electrical input currents and amplify the power input into a powerful electromagnetic signal when coupled to thrusters 7 inner cavity. The microwave generator 3, with the embodiment depicted is shown as an adapted Klystron Tube assembly that is essentially a modified microwave generator 3 built custom to supply the resonant cavity thruster 7 with an optimized field strength, power and frequency input signal. In the shown embodiment in
The shaft 1 will be designed using customary means to accommodate bending modes, stiffness requirements, design torques, torsional and bending fatigue, etc. Its principle purpose is to transfer torque to a torque converter and carry the rotational assembly. Coupled to the shaft are the rotor arms 2 which carry the microwave generator 3 and thruster 7.
The cooling system 4 will be designed using customary means to carry heat away from the power electronics on the rotating assembly, namely the thrusters 7, generator 5 and 6 and microwave generator assemblies 3. A liquefied gas, or custom optimized fluid may be used to absorb heat by pumping or simply centrifugal pumping and evaporative cycle built integrally into the rotating elements. Other cooling methods such as Focused Laser Cooling may be applied instead. Many well known specific methods of cooling system 4 methodologies may be utilized to keep the power electronics and mechanical system cooled.
The generator/motor, consisting of its Rotor 5 and Stator 6 serves several purposes. It provides starting torque for the machine to overcome static friction and inertia during a start up. It acts as a connection from an external power source to provide power input to the microwave generator 3 as to power the thrusters 7 during a rotor energy injection mode. It can be run as generator during generate mode. It can also self excite the microwave generator 3, utilizing a typical adapted regenerative braking methodology and an excitation transformer system 11.
The floating electromagnetic radial guide bearings 9 and thrust bearing 8 act to constrain the rotational assembly in a typical manner consistent with known rotor dynamic theory. A choice of floating electromagnetic bearings is customary for reducing friction losses and permitting high speed rotation of the rotating assembly. Any bearing system can however be utilized to constrain the shaft 1 rotating assembly.
A manner of using the invention is to utilize it in a scheme very similar to that of a typical hydraulic pump/turbine energy storage plant. With the invention energy is stored in the rotating shaft 1 assemblies mass, (or a coupled flywheel to the invention) rather than in a fluid at an elevation above a said hydraulic pump/turbine.
Modes of Operation. There is an energy storage operation mode, a generate energy mode, which removes energy form the rotating assembly, and idle mode where energy stored in the rotating mass is maintained as the invention waits to be called to dispatch energy from its rotating inertial reserve.
To store energy into the machine, an excitation or low power input signal is fed into the shaft generator rotor 5 from an external source. This is typical for power machines and is often done through means of a collector ring assembly, which is integral to the generator 5 and 6. The Microwave generator assembly 3 is then energized by the signal, and then subsequently provides a power input to the thruster 7. The thruster 7 then develops a force and torque which rotates the shaft 1 system to a desired rotational inertia.
The magnitude of energy being stored and rotor speed/acceleration curves for storing this energy on 1 are essentially unique in that mathematically the principle limitation of the inventions rotating energy is dependent on its rotating assemblies mechanical integrity design limit chosen to resist forces generated by its unconventional ultra high rotating speeds.
To generate energy from the machine either the integral generator rotor 5 can be self excited in a typical permanent magnet generator fashion or a coupled counter torque can be applied by means of a torque converter coupled to the shaft 1 to recover the rotating energy.
To maintain a desired rotational energy an idle mode of operation may be employed by simply exciting the thrusters 7 on a desired duty cycle to offset inherent losses of friction acting against the rotating shaft 1 assembly.
A variation of generate mode called self excited power mode may be employed whereby the rotating energy of the shaft system 1 may be sapped by the generator 5 and 6 and used to drive the thrusters 7 to produce a counter torque. This can be done also to maintain heating of the power electronic drive system 3 and 7 or to warm up the machine.
Accordingly the reader will see that the invention described creates a new way to store immense magnitudes of potential energy over a relatively low period of time from a relatively low power electrical input. The energy may quickly be tapped or withdrawn by means of a coupled torque converter device. This permits fast withdrawal of energy and can provide an electrically coupled electricity load grid with electric frequency and Volt-Ampere Reactive stability.
The specific speed and large magnitudes of power available in the asymmetric radio frequency resonant cavity turbine after it has been charged with energy to high predetermined limits will permit entirely new classifications of rotating equipment. For example, new adapted high speed matter centrifuges, high energy matter projectiles, high speed gyro inertial stabilizers, high speed drills, high speed of matter impact plasma injection drills for civil works, vacuum boosters capable of recovering gaseous atoms in a vacuum, MegaVolt, and even GigaVolt static electricity generators, fluid matter supercavitation machines, ultra high speed particle and photon exposure panel apertures, ultra high pressure matter compression machines, all represent the potential of a new industry of ultra high speed rotating equipment.
Finally, the turbine will permit the development of a large scale energy storage infrastructure where gigawatt hour magnitudes of energy storage facilities will be permitted en mass, at relatively low costs once commercial production prototypes are constructed. These storage facilities will not require the large scale chemical and heavy metal volumes of a comparable chemical battery or fuel cell type energy facility. They will also be able to furnish real power to the nations electrical grid with frequency control and mechanical rotating reserve.
The invention is an improvement on present flywheel energy storage schemes, in that the effective flywheel, the rotating shaft assembly, can be now be sped up to ultra high predetermined speeds, far beyond where presently employed machines in industry perform. The asymmetric radio frequency resonant cavity turbines speed will not be limited to the well known typical speed limitations of prior art prime movers.
Although the description above contains many specificities, these should be not construed as limiting the scheme of the rotating elements of the shaft system or the stationary elements. A speed governor, electrical excitation system, cooling fluid system, generator interconnection or torque converter, and brake system are typical elements of an adaptation to make the functional invention itself integrate with a typical power production facility or shaft torque scheme which is considered typical.
Thus the scope of the embodiment should be determined by the appended claims and their legal equivalents also, rather than by the examples given alone.
This application claims the benefit of provisional patent application Ser. No. 62/244,526, filed 2015 Oct. 21, by the present inventor.
| Number | Date | Country | |
|---|---|---|---|
| 62244526 | Oct 2015 | US |
