The present disclosure relates to airfoils used to provide lift.
Vertical Take Off and Land (VTOL) aerospace vehicles include jet packs, harrier fighter jets, helicopters, tiltrotors, drones, and numerous flying car attempts. While various embodiments of these vehicles have been available over the years, each of these embodiments have had various shortcomings and each of the models presented can be vastly improved. Most, if not all, of the prior available VTOL vehicles were dangerous and fuel inefficient, making long levitation (or flight) times impossible. For example, human jet packs typically run out of fuel in 90 seconds. Similarly, harrier jets burn approximately 20% of their fuel in 30 seconds during both take-off and landing. In other words, a harrier jet typically burns 20% of its fuel when taking off and an additional 20% of its fuel when landing, leaving only approximately 60% of its fuel to be used for flying and fighting. Helicopters are extremely dangerous and are frequently involved in crashes or accidents. Helicopters are also limited to where they can land and can only fly up to a couple of hundred miles an hour. Moreover, the helicopter blades are extremely dangerous. Drones are showing real progress but, at this time, they lack the strength to carry one, or more, human beings. Real progress has been made in tiltrotors but these vehicles are still quite dangerous and are frequently involved in accidents. What is needed is a different form of propulsion, or a different way to lift objects of large mass vertically in the air. Even more desirable would be vehicles that can take off and land vertically and push through trees and bounce off of buildings without causing damage.
The present invention includes a Vacuum Shell Airfoil which includes: (1) a circular shell, and (2) multiple fins where each of the multiple fins includes a bottom, a top, a front, a back, a first side and a second side wherein at least a portion of the bottom of each of the multiple fins is attached to the circular shell. The Vacuum Shell Airfoil can also include: a stabilization ring positioned above the circular shell where at least a portion of at least two fins is attached to the stabilization ring, a stabilization ring that is positioned above the circular shell where at least a portion of each of the multiple fins is attached to the stabilization ring, multiple fins which are radially positioned along the circular shell, which may further include a cylindrical guard rail positioned around the Vacuum Shell Airfoil. The circular shell of the Vacuum Shell Airfoil may be constructed of carbon fiber and the multiple fins may also be constructed of carbon fibers.
The present invention also discloses a method of generating lift, where the method consists of the steps of rotating a Vacuum Shell Airfoil consisting of at least one circular shell and multiple fins attached to the circular shell wherein the rotation of the Vacuum Shell Airfoil is along a vertical centerline of the circular shell. The amount of lift generated by the Vacuum Shell Airfoil may be increased by the addition of a stabilizing ring wherein a portion of the stabilizing ring is attached to the multiple fins. Additionally, the lift generated by the Vacuum Shell Airfoil may be increased by positioning a cylindrical guard rail around the Vacuum Shell Airfoil. In other embodiments, the amount of lift generated by the Vacuum Shell Airfoil may be increased by making at least a portion of the circular shell and/or the multiple fins of carbon fiber.
The present invention also discloses a method of generating lift on an aircraft where the method includes the steps of attaching multiple Vacuum Shell Airfoils to an outside surface of the aircraft where each of the multiple Vacuum Shell Airfoils includes a circular shell and multiple fins attached to the circular shell, and rotating more than one of the Vacuum Shell Airfoils such that the total lift generated by the Vacuum Shell Airfoils that are generating lift is sufficient to propel the aircraft. This method of generating lift on an aircraft may include a stabilizing ring wherein a portion of the stabilizing ring is attached to at least two of the multiple fins of the at least one of the Vacuum Shell Airfoils. In one or more embodiment, the amount of lift generated by the Vacuum Shell Airfoil may be increased by positioning a cylindrical guard rail around the Vacuum Shell Airfoil, or by making at least a portion of the circular shell, and/or the multiple fins of carbon fiber.
The drawings are meant to illustrate the principles of the invention and do not limit the scope of the invention. While some of the drawings includes sample dimensions, the invention is not limited to embodiments having the sample dimensions shown. The above-mentioned features and objects of the present disclosure will become more apparent with reference to the following description taken in conjunction with the accompanying drawings wherein like reference numerals denote like elements in which:
After 20 years and 16 airfoil attempts, a new form of propulsion has been invented that will give mankind the ability to vertically take off, levitate or fly for long periods of time, and safely and successfully descend vertically and land. It is called a Vacuum Shell Airfoil (VSA). The present invention discloses a way to vertically take off, levitate, fly for long periods of time, and safely and successfully descend vertically and land while using very low amounts of fuel or energy. This will result in increased flight and levitation times.
Over the last 20 years, I have encountered many fundamental misunderstandings of flight, and how flying machines and wings and air pressure work. The key to how every propeller, helicopter rotor, and airplane wing works is widely misunderstood. Propellers, helicopter rotors, and airplane wings are all airfoils. One of the biggest misunderstandings of airfoils is that people think that airfoils work by driving or pushing air downwards. Airfoils work because of a change in the way gaseous atoms (and liquid) “dance” on the top surface area of the airfoil or wing. This change in the way atoms “dance” subsequently results in a “lowering” of the air pressure on the top surface. Airplane wings do not “compress” air underneath the wing, instead wings produce lift because of a “decompression” of the air pressure on the top surface area. The “change” in pressure is caused by a change in the way the atoms “dance” or interact with a surface area. This “change” is usually caused by air moving rapidly over a descending curve, which changes the way that atoms are exchanging momentum at the molecular level of the surface area, which subsequently leads to a change in pressure. Pressure is caused, for example, by billions of molecular collisions pounding on a 1 square inch surface area over a period of 1 second. At sea level, the pressure is 14.7 pounds per square inch (14.7 lbs/in2). If the way that atoms “dance” could be mastered, we could cause large “changes” in pressure on small surface areas, inside of guard rails, lifting large masses, pushing through trees, bouncing off buildings and safely landing anywhere. This has been the goal of my 20 years of hobby and research. This patent application encompasses my findings over the last 20 years.
1. Shell (105): is the circular curved base of the VSA (which can range in diameter from very large to very small). The model built and tested has a diameter of 40 inches.
2. Fins (110): A dense conglomeration of short, almost parallel fins covering the top of the descending curve of the Shell 105. The model built and tested has 440 fins that were 0.5 inches tall and placed slightly less than 0.25 inches apart. Other configurations and numbers of fins are included in the present invention.
3. Stabilization Ring (115): A preferably flat ring covering, placed on top of, at least a portion of the Fins 110 on the flat part of the Shell 105 preferably at the beginning of the descending curve as shown in
The Vacuum Shell Airfoil (VSA) was invented and designed to produce large pressure changes on small surface areas contained inside protective circular guard rails so that we can build Vertical Take Off and Land vehicles (VTOL) that can bounce off buildings/structures and push through trees/brush (without damage) and safely land anywhere (including on water). As the VSA spins faster and faster, forces of lift grow exponentially due to 3 different physical reasons.
At slower speeds, the first force of lift experienced by the VSA is due to traditional Bernoulli's Principle of air moving faster over the top of the descending curve than the speed of the air underneath, resulting in a reduction of pressure on the top of the VSA, just like a traditional airplane wing (See
The second distinct force of lift experienced by the VSA comes from what is referred to herein as “Shedding/Decompression”. Shedding/Decompression occurs where and when the VSA begins to spin at a speed so fast that the air being “shed” off the VSA is being ‘shed” so fast that it cannot be replaced by the incoming air.
As the VSA crosses over to speeds that are faster than the speed of sound (344 meters per second on a standard day at sea level), it will experience the 3rd and most powerful force of lift, which is called herein “Vectoring” (
The Vacuum Shell Airfoil is a circular “shell” 105 with an outwardly descending curve (
Without the “fins”, and only a “bare” top surface area of the “shell”, the air directly interacting with the top surface would not be accelerated or made to move rapidly in a controlled and streamlined way over the descending curve of the “shell”. Hence having a large number of short, almost parallel fins drastically affects the speed, direction, currents and molecular interaction of the air on the top surface area of the “shell” or VSA.
Fin Height: Since we are only trying to affect the pressure on the top surface area of the “shell” at the atomic level, the “height” of the “fins” does not need to be very tall. In fact, the taller the “fins”, the more air is being accelerated. Accelerating more air means more mass is being “shed” off the VSA, meaning a less efficient airfoil. Preferably, large masses of air do not need to be accelerated. Only the air at the molecular level of the top surface of the shell needs to be affected. Hence a preferable configuration is a large number of almost parallel “short fins” with a “fin density ratio” greater than 1.00. The height of the “fins” is dependent upon the size of the VSA being built. For large VSA (1-2 meter diameter), probably no more than 1-2 inches tall (2.5 cm-5 cm) (for example) and only separated by, for example, 0.50 inches. While the fins are described as “parallel,” one of ordinary skill in the art would understand that the fins are not truly “parallel” because the distance between adjacent fins at the inside circumference of the shell is smaller than the distance between adjacent finds at the outside circumference of the shell.
For the experiment shown in the included figures, the “fin density” is roughly 2.5. Where the VSA is 40 inches in diameter and has 440 “fins” that are 0.50 inches tall and are 0.20 inches apart.
Again, one of ordinary skill in the art would appreciate that the foregoing measurements are include as example measurements and the invention is not limited to these measurements.
Fin Height Diagram Description (
The “fin height” is the distance from the top of the fin to the shell. Preferably, the height of the fin is consistent throughout the downslope of the shell. Meaning that in
Depending on the size and speed that VSA are intended to be, will ultimately decide the curvatures of the shells and the size, height and shape of the fins. Regardless of these variables, all VSA shapes, designs, dimensions and speeds still work on the same principle of covering the top of a circular, outwardly descending curve “shell” with a dense conglomeration of short fins so as to effectuate a rapid movement of air currents on the top of the “shell”, resulting in pressure changes and causing forces of lift on the vacuum shell airfoil.
Materials
Preferably, the materials that will be used to make Vacuum Shell Airfoils may be metals, plastics, composites, ceramics, and/or carbon fibers. Each material type has its benefits and downfalls. Metals are very strong and come in many different forms and alloys, yet are usually heavy and expensive. Titanium alloys and ceramics are some of the strongest materials known, yet titanium is extremely expensive. Plastics and plastic VSA are cheap and easy to mass produce, but plastics do not hold up well at high temperatures and may deform at those temperatures, especially undergoing extreme centrifugal force when spinning the VSA. When VSA and objects spin at speeds greater than the speed of sound, they become very hot because of the increased kinetic energy of the molecules in the VSA. It is believed that most VSAs in the future will be made out of aerospace grade aluminum, steel and nickel alloys and/or a wide range of composites like fiberglass which are very light and strong. However, the invention is not limited to these composites. In the end, it is believed that the best material to make the VSA, are carbon fibers. Again, the invention is not limited to VSAs manufactured from carbon fibers. Carbon fibers are very light, stronger than steel and can resist very high temperatures. The only downfall is that making things out of carbon fibers is very expensive and complex from a manufacturing perspective because the carbon fibers have to be woven and laid in glued layers. In conclusion the VSA can be made from a wide range of materials depending on the mass production requirements of the VSA. It could be plastics for toys and titanium and carbon fibers for military vehicles. The model VSA built was made out of an aerospace grade aluminum, where the “shell” was carved out of a $4,000 block of aluminum.
Stabilization Ring/Disk
The purpose of the stabilization ring/disk 115 is to stabilize and streamline the air entering into the beginning of the fins. (
Without the stabilization ring/disk 115, it is probable that too much air coming from multiple angles 1405 (
As for the dimensions of the stabilization rings/disk, this also varies with the size of the VSA being designed. For the model VSA built, the stabilization ring has an outer diameter of 32 inches and an inner diameter of 30 inches. The stabilization ring rests on and above the first one inch of fins in the flat top surface area, ending right at the beginning of the descending curve. (
Stabilization Disk
Instead of just having a stabilization ring that covers the fins 110 (or a portion of the fins), some embodiments may cover the entire top of the VSA with a stabilization disk 1605 (
Guard Rails and Other Accessories
As mentioned previously, the VSA or most VSAs will be spinning inside of circular of cylindrical guard rails. The guard rails, just like the VSA, can be made by many different materials in many different styles. Of course, most if not all guard rails should be wider than the VSA that it is protecting and wide enough that the VSA can “breathe”. Meaning the width of the guard rail will normally be great enough so that air can vent off of the VSA and escape out of the guard rail without interfering with the currents and functioning of the VSA. Preferably, the guard rails will be slightly conical to aid in a downward venting of the air.
Attachment of VSA to a Central Axle
The VSA can be attached to a central spinning axle in numerous ways. The VSA can be attached with arms or spokes, mounted on disks and or wheels, and whatever way that wheels, rotors, and propellers are attached to their axles. The way that a VSA is attached to an axle depends on its size and the materials that the “shell” is made out of. Obviously whatever attachment used should be strong enough to withstand the anticipated lifting force which may be in the thousands of pounds.
Unless defined otherwise, all technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Any methods and materials similar or equivalent to those described herein also can be used in the practice or testing of the present disclosure
It must be noted that as used herein and in the appended claims, the singular forms “a”, “and”, and “the” include plural references unless the context clearly dictates otherwise.
While the present disclosure has been described with reference to the specific embodiments thereof, it should be understood by those skilled in the art that various changes may be made and equivalents may be substituted without departing from the true spirit and scope of the invention. In addition, many modifications may be made to adopt a particular situation, material, composition of matter, process, process step or steps, to the objective spirit and scope of the present disclosure. All such modifications are intended to be within the scope of the claims appended hereto.
The present application claims the benefit of priority to U.S. Provisional Application No. 63/183,571 filed May 3, 2021, which is hereby incorporated in its entirety including all tables, figures and claims.
Number | Date | Country | |
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63183571 | May 2021 | US |