WO2009002279A2

WO2009002279A2 - Sequential wing

Info

Publication number: WO2009002279A2
Application number: PCT/SK2008/000006
Authority: WO
Inventors: Alexander Kalisky
Original assignee: Liptovska Energeticka Spolocnost, S.R.O.
Priority date: 2007-06-26
Filing date: 2008-06-18
Publication date: 2008-12-31
Also published as: WO2009002279A3; SK892007A3

Abstract

A sequential wing construction for airplanes or wind turbines rotors. The wing comprises independent blades (5) rotably located on girders (1) of circular cross-section, which create, along with sideward positioned aerodynamic traverses (3) and crossbars (2) a solid traverse girder. Configuration of blades (5) into the sequential wing decreases total weight of bearing or driving surfaces by increasing the total uplift. Utilization is suitable for helicopters, oscillopters, wind turbines and new lifting bodies.

Description

SEQUENTIAL WING

Area of technology

The patent is concerned with construction of a wing for airplanes or rotors of wind turbines, especially for types of equipment with high interval or average.

Current state of technology

The request for high-parameter wings of airplanes or rotors blades of helicopters and wind turbines is solved by quality of composite materials and sufficient thickness of girders walls or shells of an external cladding of profiles. In principle it is valid, that the wing weight increases with a cube of its length parameter which limits parameters and causes in general a high share of wings weight on total equipment weight and thereby also a high share of acquisitions costs for material. Increased weight of airplanes excessively increases operational costs.

Patent substance

Shortcomings of the current state may be decreased by a solution according to the patent, substance of which is that independent blades are rotating-wise located on girders of circular cross section, which are interdependentry connected by traverses into an integrated unit in the form of traverse girder, while traverses have, towards the direction of flow an inclination and aerodynamic profile. Individual blades are to be operated independently by inbuilt servo-drivers connected with blades by a flexible strain unit and flexible rod, which provide a consistent lift power according to immediate or regime setup. Set of blades neck and neck on a lengthwise girder of a sequential wing creates a section plan with a high slenderness, while strength of the whole integrated sequential wing responds to strength of a skeleton of hypothetical wing with a large highness and depth of the profile.

Independence of angles set-up by individual blades allows reaching an optimum loading diagram of wind turbine rotor - start-up curve, nominal performance and maximum performance by the fact, that higher diameter for lower wind speeds loads the set-up equally by higher performance. Rotor of the helicopter may be self-supporting without additional influence of the centrifugal force and by specific height of the flight it is possible to stop it and to complete the forward flight with a fixed wing by symmetric profiles. Vertical landing by autorotation and partial input power. Rotor has significantly higher flatness, lower surface speeds, higher forward speeds by shoe motors.

Low weight of the sequential wing allows building high diameters of diagonal wind turbines final resistance power of which is just few meters above the ground. Thereby they are suitable for shore wind utilization.,

Overview of pictures at drawings

Fig.l is a perspective view at sequential wing independently, without equipment shoulder

Fig.2 is a scheme of blade profile with its control

Fig.3 is a side view for application of sequential wing on sea level in diagonal turbine

Fig.4 is a side view to duo-rotor helicopter with sequential wings

Fig.5 is a front view at a system of duo-rotor helicopters for extreme uplifts

Examples of patent realization

Wind turbine with a horizontal axis and pair of sequential wings according to fig.l is, in comparison with conventional turbine approximately by 40% higher diameter by lower composite materials consumption and with an equal maximum performance. Nominal performance is shifted from 6 m/s to 4,8 m/s and thus is the turbine utilization also suitable into the area with a lower wind speed average, or the wind turbine capacity use is generally higher.

Small wind turbine has a simple conventional heading into the direction of wind and simple zero angle setting of its blades 5 placed between the crossbars 3. At crossbars 3 there is a regulated clip anchor 10, which prestresses elastic rod 8 and tensile item 7 between pulleys 6 connected with a start-up or offtake edge of the blade profile. Thereby a maximum loading uplifting power to blade 5 is given. After its overload, the blade 5 turns and at the same time it increases resistance against rotation, at first by alternator resistance, later by brake, the best aerodynamic, in extreme cases by mechanical blocking the rotational speed.

Another utilization of the sequential wing is the oscillopter. Two sequential wings, perpendicular to each other, act on small radius a rotation-translation movement, while blades profiles 5 are symmetrical. The wind thus flows to each blade alternately from the front and from the back. Blades 5 have a turning point - a console in the middle creates automatically an angle of startup according to will of a tensile item 8 between pulleys 6. The wind does not whirr as by propellers, the wing does not need high amplitude of oscillation (radius of translation rotation). Each arm of the oscillation amplitude is balanced by counter-arm. Flatness of the oscillopter by equal diameter, in comparison with a helicopter, is approximately 16 times higher. Vertical takeoff is unpretentious for power; horizontal flight is just at the vertical wing by stopped translation. Moment against rotation is balanced by various angles of start-up at edges of oscillation wing, eventually by small additional engine. Operation - turning around vertical axis, sideward movement, versatile tilt are performed by combination of various angles of individual blades 5 start-up as well as individual phases of vibration by the change of pulleys 6_symmetry.

Other variant is the utilization of sequential wing in diagonal turbine according to fig.3. Low weight of sequential vertical and horizontal wings allows the high-diameter rotor to shape its surfaces by resultant of forces in the middle of the column and by the effect of negative moment from horizontal undersurfaces low to the ground or water level. Usage of diagonal turbines equipped like this is therefore exceptionally suitable for utilization of shore wind, where undersurface of blades is in altitude of 20 m above the waves, buoys are under the water and anchoring ropes in cooperation with a buoys displacement provide the uprightness of the column. Energy might be taken away by electricity, or into the pumps, which drive the water from big sea parks into high diameter plastic pipelines and into the shore into elevated artificial lakes or underground pressure tanks. Quality of shore wind enables a nominal output of 10 MW/km" x 10 000 km" (250 x 40 km) , it provides an accumulation power plant of a nominal input power of 100 000 MW, i.e. approximately 30 000 MW of an average output or 40-60 thousand MW of the top output. Nevertheless, sea voyage stays unlimited. Wind turbines have a feed pitch of approximately 400 m. Regulation is similar to rotor with a vertical axis. Protection by zero angle setting occurs by circular indexing of blades 5 by a strong wind after overcharging the spring tension at elastic rod 8 or by a function of servomotor winch 9 in cooperation with rotor brake. For a more precise visualization and within the scope of an interesting view from above, partial utilization of the free western coast of Atlantic would mean a project 5 times more gigantic, than famous megaproject ATLANTROPA for utilization of water head via Gibraltar into the Mediterranean using permanent evaporation. At the same time, wind utilization is not dependent on complex solution, it allows series of steps, it is easy to verify, it is not technologically demanding like a nuclear fusion and it is time-feasible in a short period of time. Wind oscillation is solved by territorial variability of the location or by accumulation of water pressure.

Other variant of sequential wind is the helicopter, for example duo-rotor according to fig.4. Self-supporting propellers are light and stoppable in altitude. Symmetric profiles (just like by the oscillopter) allow a horizontal flight in a function of a shoulder-wing monoplane with higher economy of the forward flight. High diameter variants serve as manipulators, for example by timber production from calamities or for other transportation uses. Cyclic operation of blades is automatic by the principle of uplift with a help of the system at fig.2. Extreme cargos are transportable by a system of duo-rotor helicopters in an arch above the hung freight, fig.3. The uplift might be substantially increased by a hybrid system with a short start by strong pressure engines by the freight and by creation of angle for supporting propellers. Feed pitch of helicopters is observed by sensors, to which servomotors of control react.

Claims

P A T E N T C L A I M S

1. Sequential wind containing independent blades with aerodynamic profile is also characteristic by the feet, that independent blades (5) are rotating- wise located at girders (1) of circular cross- section, while at least three girders (1) along with traverses (3) and crossbars (2) are connected by joints (4) into a traverse construction, while traverses (3) are positioned with the inclination towards the flow direction.

2. Sequential wing, according to claim 1 is characterized by the feet, that the blade (5) is connected with a tensile item (7), which is connected by a elastic rod (8) between pulleys (6) or servomotor (9) at clip anchor (10) gripped at the traverse (3) before or behind the blade (5)