1. Field of the Invention
This invention relates to devices for converting wind energy into other usable forms of energy.
2. Description of Related Art
It is estimated that 1% to 3% of solar energy that hits the Earth is converted naturally into wind energy. This is about 50 to 100 times more energy than is converted into biomass by all the plants on Earth through photosynthesis. Obviously this is a large amount of energy, most of which is not converted into other forms of usable energy.
Most of this wind energy is found at high altitudes. However, some of the wind is found close to the Earth's surface. Over the years, many devices have been developed that convert this wind energy found close to the Earth into other forms of usable energy. For example, windmills have been developed that convert wind energy into mechanical energy that is used to crush grain or pump water.
Relatively recently, wind energy has been converted into electrical energy by wind contacting and turning turbine blades which are mechanically connected to generators to generate electricity as the wind turns the turbine blades. Due to issues associated with energy generation by and use of non-renewable resources, particularly fossil fuels such as coal, natural gas and oil, there has been much interest recently in devices to convert wind energy, a renewable resource, into other forms of energy particularly electrical energy. As a result, large windmill arrays are now found in many countries. Further, particularly in remote areas, small household windmill generators typically producing around a view hundred watts to several kilowatts of electrical energy are found near many homes. As a result, at the end of 2006 the worldwide capacity of wind-power generators was estimated to be 74, 223 megawatts which was approximately 4 times the power produced by wind in 2000. Despite the attractiveness of wind as a renewable energy source, only a tiny fraction of the available wind energy as so far been converted into other usable forms of energy such as electrical energy.
Devices for converting wind energy into other usable forms of energy are disclosed. In one embodiment of the invention, a wind device having at least one but more preferably two vertically directed cylindrical windmills are disposed on the ends of a “V” shaped structure so that half of each windmill is exposed to contact by the wind moving along the outer surface of the “V” as the point of the “V” is aimed into the wind. The V-shaped structure is preferably but not absolutely allowed to rotate so that it forms a natural wind vane turning into the wind.
In this configuration, the other half of each windmill is located within the “V” shaped structure where this half does not come into contact with the wind. As a result, the wind contacting the outside half of each windmill causes the windmill to rotate. Each rotating windmill is mechanically connected to a device to convert the rotation of the windmills into another form of energy. For example, the windmills are preferably connected to an electrical generator, an air compressor, hydraulic pump or a fluid or gas pump to convert mechanical rotation of the windmill into other forms of usable energy.
In a variant of this invention, the vanes are located a distance from each axis of rotation, preferably by attaching the vane to an axis of rotation through a connector arm. In this configuration, greater torque is imparted to the axis of rotation, and ultimately to device for converting this rotational energy into another form of energy such as an electrical generator, air compressor, hydraulic pump or fluid or gas pump. This embodiment may be particularly useful in areas where or at times when the wind contacting a vane is light.
In another variant of this invention, the top of the wind device is covered with a solar panel that converts incidence sunlight into electricity in order to further add to the energy collecting capability of the invention. Where the invention generates electricity, the electricity may be used directly in the vicinity of the invention or may be connected to a larger power grid or may be used for other local purposes.
In addition, the electricity generated by the wind device, whether from the windmill or from a solar panel or through a purely mechanical connection may be used to power a pump or an air compressor to produce compressed air which may be used for a variety of functions as is commonly understood in the art. In addition, power from the electrical generator may be used to generate hydrogen and oxygen which may also be used as energy sources as it is also well understood in the art.
In a variant of the invention, wind devices are located in locations where there is a relatively large amount of wind. For example, wind devices may be placed on cars, trucks, busses, trains, ships, bicycles or airplanes so that as they move, the wind generated by their movement in addition to any naturally occurring land, if any, may be used to turn windmills to provide the benefits described above.
In another variant of the invention, the wind devices may be placed near on or in tunnels so wind movement through the tunnels or movement of wind through tunnels generated by passing cars, trucks, busses or trains all or in any combination of these may interact with the windmills to produce the desired benefits described above.
In another variant of the invention the present invention may be placed near the ends of runways so that propeller blast or jet wash from departing aircraft may be captured by the invention and converted into usable energy as described above. In a further variant of this invention, wind devices may be placed on ships, particularly aircraft carriers that are turned into the wind in order to enable the takeoff and landing of aircraft from such ships.
It is therefore an object of the present invention in one or more embodiments to provide devices that convert wind energy into other usable forms of energy.
It is therefore an object of the present invention in one or more embodiments to provide devices that convert wind energy, particularly light wind, into other usable forms of energy.
It is a further object of the invention in one or more embodiments to provide devices that combine collecting energy from wind with collecting energy from a solar panel.
It is another object of the invention in one or more embodiments to provide devices that may be used on moving vehicles or other objects of transportation to convert wind passing by such objects into usable forms of energy.
It is another object of the invention in one or more embodiments to provide devices that may be used on moving vehicles or other objects of transportation to increase the drag on such objects in order to assist such objects in stopping.
Not all of these objects need be present in a single embodiment. Instead, a particular embodiment may have one or more of these objects. These and other objects of the invention will be clear from the following detailed description of the invention in connection with the drawings
The invention will be described hereafter in detail with particular reference to the drawings. Throughout this description, like elements, in whatever embodiment described, refer to common elements wherever referred to and referenced by the same reference number. The characteristics, attributes, functions, interrelations ascribed to a particular element in one location apply to that element when referred to by the same reference number in another location unless specifically stated otherwise. In addition, the exact dimensions and dimensional proportions to conform to specific force, weight, strength and similar requirements will be within the skill of the art after the following description has been read and understood.
All Figures are drawn for ease of explanation of the basic teachings of the present invention only; the extensions of the Figures with respect to number, position, relationship, and dimensions of the parts to form examples of the various embodiments will be explained or will be within the skill of the art after the following description has been read and understood. Further, the exact dimensions and dimensional proportions to conform to specific force, weight, strength and similar requirements will likewise be within the skill of the art after the following description has been read and understood.
In order that the invention may be clearly understood and readily carried into effect, preferred embodiments of the invention will now be described, by way of example only and not to limit the invention, with reference to the accompanying drawings. The wind devices of the present invention are shown in the drawings generally labeled 10.
The wind device 10, in an embodiment shown in
For example, in the embodiment of the support structure 14 shown in
In addition, the support structure 14 could take the form of an already existing structure such as a silo, tower, bridge, billboard or building so that the wind collector 12 is attached to the silo, tower, bridge, billboard or building. Further, the support structure 14 or the entire wind device 10 itself may be placed along the sides of structures such as buildings, particularly on or in the corners of buildings, so that wind can contact the wind collector 12.
In the wind device 10 shown in
Wind collector 12 in the embodiments of
The wind collector 12 includes at least one propeller 24. In the embodiment shown in
Depending on the configuration of the vanes 32, there must be at least one vane 32 (e.g., a helical vane 32 that wraps around the propeller axis 30) but could be many vanes 32 (e.g., many flat vanes 32 extending radially from the propeller axis 30). In the embodiment shown in
Each propeller axis 30 is rigidly but rotatably attached to the wind vane splitter 22 at both the top 33 and bottom 35 of the propeller axis 30. This allows each propeller 24 to spin around the propeller axis 30. The propeller axis 30, as shown in
As described above, in one embodiment approximately half of the propeller 24 is exposed to the wind passing down the legs 26 of the wind vane splitter 22. Consequently, once the wind vane splitter 22 is turned into the wind, wind will move along either side of the legs 26 of the wind vane splitter and contact tax the vanes 32 of the propellers 24. Because the wind is contacting the vanes 32 on one side of the propeller axis 30, the wind is prevented from contacting the vanes 32 on the other side of the propeller axis 30. As a result, uneven the pressure is exerted on the vanes 32 causing the propellers 24 to rotate around the propeller axis 30.
The propeller axis 30 is preferably connected to a device for converting rotational motion around the propeller axis 30 into a useful form of energy. In one preferred embodiment, the propeller axis 30 is attached to an electrical generator 34 so that as the propellers 24 rotate around the propeller axis 30 due to the interaction of the vanes 32 with the wind, electrical energy is generated by the electric generator 34.
In one embodiment of the invention, the electric generator 34 is connected to an exchange battery 36 that stores the electrical energy generated by the electric generator 34. Alternately, the electric generator 34 can be connected directly to an electric grid through appropriate hardware as is well understood in the art in connection with connecting electrical generators to such grids.
In a further embodiment, the electoral generator 34 can produce electricity that is directly applied to water to create hydrogen and oxygen through electrolysis. The hydrogen and oxygen may then be collected and either used directly or stored for use (e.g., combustion) as is well understood with hydrogen and oxygen systems.
Alternately, the propeller axis 30 can be connected to other devices to produce useful energy such as an air compressor 38, hydraulic pump or fluid or gas pump, such as is well understood in the art. In this embodiment, rotation of the propellers 24 around their propeller axes 30 may produce compressed air which may then either be used directly or stored for later use. Alternately, rotation of the propellers 24 around their propeller axes 30 may actuate a hydraulic pump to create hydraulic action for any purpose common to hydraulic tools as is well understood in the art. Further, rotation of the propellers 24 around their propeller axes 30 may actuate a fluid or gas pump for any purpose common to such pumps as is well understood in the art.
Alternately, one propeller 24 may be connected to one device for converting rotation of the propeller 24 into useful energy (e.g., an electrical generator 34) while another propeller 24 may be connected to another device for converting rotation of the propeller 24 into useful energy (e.g., an air compressor 38). Obviously, various propellers 24 may be connected in any combination to various devices for converting rotation of the propeller 24 into useful energy. Further, two or more propellers 24 may be mechanically connected to a single device for converting rotation of the propeller 24 into useful energy (e.g., an electrical generator 34). In this way, more power may be presented to a device for converting rotation of the propeller 24 into useful energy than would be presented to such device from a single propeller 24. In addition, one propeller 24 may be mechanically connected to more than one device for converting rotation of the propeller 24 into useful energy (e.g., an electrical generator 34 and an air compressor 38).
In one embodiment of the invention shown in
In a preferred embodiment, the wind collector 12 includes a top 46 covering at least the wind vane splitter 22. One function of the top 46 is to provide a cover for the wind vane splitter 22 so that dirt, debris or animal or bird nests are less likely to be formed within the wind vane splitter 22. In a preferred embodiment of the wind device 10, the top 46 includes a solar panel 48 that converts sunlight into electrical energy. The solar panel 48 is preferably connected to the electrical system that the electrical generator 34 is attached to where there is an electrical generator 34 as described above or may produce an independent application of electrical energy whether there is an electrical generator 34 or not.
In another embodiment of the invention, wind devices 10 are located in locations where there is a relatively large amount of wind, either naturally created or created by the movement of a vehicle. For example, wind devices 10 may be placed on a car 58 (
For example, as shown in
In this application as shown in
Likewise, propellers 24 may be located on a truck 60, such as is shown schematically in
Further, the car 58, truck 60 or other vehicle could have at least one deflector 64 functionally located close to a particular propeller 24 to control the amount of and even whether any wind contacts the propellers 24. For example, it may be desirable for the deflector 64 to move to a first position to deflect the wind over the propellers 24 when traveling uphill in order to minimize the drag and maximize the efficiency of the car 58 or truck 60 traveling up the hill. However, it may be desirable to move the deflector 64 into a second position that allows a desired amount (e.g., a maximum amount) of wind to contact half of a propeller 24 as described above when the truck 60 is going downhill or when braking in order to maximize the amount of drag produced by the propeller 24.
As described above, preferably approximately half of a propeller 24 is directly exposed to contact with the wind produced by a vehicle as it moves. Alternately wind devices 10 may be placed within the confines of a car 58, truck 60 or other vehicle. In this embodiment, wind from movement of the car 58, truck 60 or other vehicle may be directed to the wind device 10 through one or more ducts 66 that capture a portion of the wind and direct it into contact with the wind devices 10.
It may also be desirable to allow one or more propellers 24 to free-wheel (i.e., not be functionally connected to either the electrical generator 34, air compressor 38, hydraulic pump or fluid or gas pump) in normal operation in order to reduce drag and increase gas mileage. However, it may be desirable to then selectively activate the propellers 24 (i.e., functionally connect them to the electrical generator 34, air compressor 38, hydraulic pump or fluid or gas pump) for example upon applying brakes, in order to assist the car 58 or truck 60 in slowing down. This may be accomplished through a clutch such as is well known in the art including, but not limited to, an electrically activated clutch located between the electrical generator 34, air compressor 38, hydraulic pump or fluid or gas pump and the propeller axis 30. This assist in braking is due to the increase of drag caused by the resistance to movement of the propellers 24 in their functional configuration to produce electricity or compressed air.
Although the wind devices 10 have been described here is being connected to cars 58 and trucks 60, such wind devices 10 could be attached to any moving apparatus including, but not limited to, buses, trains, ships, bicycles and planes.
With respect to placing wind devices 10 on ships, it may be particularly useful to place such wind devices 10 on aircraft carriers since aircraft carriers are turned into the wind in order to enable the takeoff and landing of aircraft. As a result, there will always be a wind blowing directly down the ship as the aircraft carrier moves into the wind. Further, although the wind devices 10 have been described as preferably being located near the departure end of a runway 70 to capture the prop blast orjet wash of departing aircraft, such wind devices 10 may also be used on aircraft carriers to capture the prop blast or jet wash of landing aircraft since such aircraft typically land on carriers with full power.
In another variant of the invention shown in
In another variant of the wind device 10 shown in
In a further variant of the wind device 10 shown in
In a preferred embodiment of the invention shown in
In another embodiment of the wind device shown in
The wind device 10 of the present invention may either be permanently located at a desired location or may be portable. Where the wind device 10 is portable, the wind device 10 may be transported to a desired location, set up and the electricity, compressed air or hydrogen and oxygen may be used at that location as desired.
As described above, the wind device 10 may be located on or in buildings. This may allow the wind devices 10 to better fit into the landscape than if they were free standing. As a result, there may be less public resistance to erecting such wind devices 10 than there has been with erecting windmills of the turbine blade models, particularly where such turbine blade windmills are free standing. Another advantage of the design of the present wind device 10 is that by incorporating the wind device 10 into or onto buildings or other structures, the wind device 10 will have less negative effect on radar compared to the turbine blade windmills. Even where the wind device 10 is not incorporated into or onto structures such as buildings, the present wind device 10 will likely have less negative effect on radar compared to the turbine blade windmills because of its ability to be oriented in a horizontal direction (i.e., the propeller axis 30 is oriented horizontally) thereby making the wind device 10 not as tall as turbine blade windmills.
While the above description contains many specificities, these should not be construed as limitations on the scope of the invention, but rather as examples of preferred embodiments thereof. As a result, the description contained herein is intended to be illustrative and not exhaustive. Many variations and alternatives of the described technique and method will occur to one of ordinary skill in this art. Variations in form to the component pieces described and shown in the drawings may be made as will occur to those skilled in the art. Further, although certain embodiments of a wind system 10 have been described, it is also within the scope of the invention to add other additional components or to remove certain components such as the solar panel 48. Also, variations in the shape or relative dimensions of the top piece 50 and bottom piece 52 or the top 46 will occur to those skilled in the art and still be within the scope of the invention.
All these alternatives and variations are intended to be included within the scope of the attached claims. Those familiar with the art may recognize other equivalents to the specific embodiments described herein which equivalents are also intended to be encompassed by the claims attached hereto. As a result, while the above description contains may specificities, these should not be construed as limitations on the scope of the invention but rather as examples of different embodiments thereof.
Number | Date | Country | |
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60812169 | Jun 2006 | US |