In a first version, the connecting rod, under the influence of the oscillating frame arrangement, provides a substantially linear motion, which can be used directly to perform mechanical work. In a second version, the connecting rod may be fitted to a crankshaft to translate the linear motion of the connecting rod, under the influence of the oscillating frame arrangement, into a rotational motion. In a second version, the connecting rod 24 may be fitted to a crankshaft 26 to translate the linear motion of the connecting rod 24, under the influence of the oscillating frame arrangement 12, into a rotational motion.
Turning now to Figure 17 in particular, the oscillating wing power generator 10 may be assembled or housed in a self-aligning aerodynamic duct 92 which can swivel about a vertical axis 94, so as to define a turntable on a pedestal arrangement. More particularly, the invention relates to an oscillating wing power generator.
Dolor Neuropático Periférico
In a third embodiment, the oscillating wing power generator includes two stacked pairs of tandem wings comprising: a first single oscillating frame and a pair of wings, corresponding to a first front wing and a first rear wing, at opposite ends of the first oscillating frame, with the first pivot point of the support base being positioned substantially in the middle between this pair of wings; and a second single oscillating frame positioned below or above the first single oscillating frame, and also pivotally mounted to the support base by means of a second pivot point, and also including a pair of wings, corresponding to a second front wing and a second rear wing, at opposite ends of the second oscillating frame, with the second pivot point of the support base being positioned substantially in the middle between this pair of wings. The second smaller flap may alternatively be used to unload the aft part of the wing 1 8 to counter the pitching moment developed by the wing 18 and to smooth the airflow in the wake of the wing 18. This may be beneficial to the single and/or stacked tandem wing configuration, which will be described further below, in which rear wing operates in the wake of a front wing, and also to the entire assembly when it operates in an aerodynamic duct, which feature will also be described in more detail further below.
Tipos De Dolor De Espalda
In an embodiment, the angle of incidence of the wing is changed at the extremity of each upward or downward movement to reverse the direction of the aerodynamic force exerted on it by the flow of wind or water over the wing, so as to exert an upward force on the frame arrangement during its upward motion and a downward force during its downward motion. In this version, the crankshaft 26 provides the primary power output of the generator 10. The crankshaft 26 may be housed within a protective box 28, which may in turn be secured to the support base 14 with a securing beam 30. Conveniently, the angle of incidence of the wing 18 changes at the extremity of each upward or downward movement to reverse the direction of the aerodynamic force exerted on it by the flow of wind (or water) over the wing 18, so as to exert an upward force on the frame arrangement 12 during its upward motion and a downward force during its downward motion.
The wing may include sensors which indicate when the first end of the wing has reached the first and the second position. The first flap thus operates as described above in the first example. In this particular version, the oscillating wing power generator includes a counterweight, attached at an opposite end of the pivoting frame arrangement.
The oscillating wing power generator of the present invention, in general, may be arranged in any one of a number of different configurations utilizing the basic mechanism described above, based on the number of oscillating wings employed. In an embodiment, the adjustment means 38 comprises a rotating cam 40 with a pushrod 42 to a lever 44 on the wing 18, the pushrod 42 in turn being connected to the connecting rod 24. Thus, in this particular version, the connecting rod 24 is indirectly fitted to the frame arrangement 12, via the adjustment means 38. Instead of the rotating cam 40 and pushrod 42, a cam and belt arrangement may be used instead. The force generated by the action of airflow over the wing 18 is a function of wind speed, wing area and the incidence angle of the airflow on the wing 1 8. At the extremities of the frame motion (i.e.
According to the invention, there is provided an oscillating wing power generator for converting wind or water flow into electrical or mechanical energy, the generator comprising: an oscillating frame arrangement that is pivotally mountable to a support base at a first pivot point; and a wing pivotally fitted to the frame arrangement at a second pivot point, the second pivot point being spaced apart from the first pivot point, with the wing, in the presence of wind or water flow, being arranged to exert an aerodynamic force on the frame arrangement so as to move an end of the frame arrangement, in proximity to the second pivot point, between an upper and lower position relative to the support base, wherein a connecting rod can be fitted to the oscillating frame arrangement to produce, either directly or indirectly, mechanical or electrical energy, respectively. A second smaller flap can be utilized to further increase the effective camber and so further augment the aerodynamic forces developed.
Figure 17 shows a three dimensional view of a self-aligning aerodynamic duct which can swivel about a vertical axis, which may accommodate any of the embodiments of the invention. In an embodiment, the oscillating wing power generator is assembled in a self- aligning aerodynamic duct which can swivel about a vertical axis. Referring first to Figures 1 to 3, an oscillating wing power generator 1 0 for converting wind or water flow into electrical or mechanical energy is shown. Porque tengo dolor de espalda baja . In a first example of the articulated wing version, the wing is fitted with a single articulated flap, with the adjustment means being arranged to control the flap angle relative to the wing. In a first example of the articulated wing version, the wing 18 is fitted with a single articulated flap, with the adjustment means 38 being arranged to control the flap angle relative to the wing 1 8. This occurs during the oscillation cycle in order to augment the aerodynamic force developed by the wing/flap combination by varying the effective wing camber.
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- Ix is the moment of inertia of the membrane
In a second example of the articulated wing version, the wing is fitted with two articulated flaps, with the adjustment means being arranged to control the angles of the two flaps relative to the wing. The generator 1 0 comprises an oscillating frame arrangement 12 that is pivotally mountable to a support base 14 at a first pivot point 16. The support base 14 typically takes the form of an A-frame body. In a first embodiment, the oscillating wing power generator takes the form of a single wing configuration comprising a single oscillating frame and a single wing. FIELD OF THE INVENTION THIS INVENTION relates to power generation, and in particular to a generator for converting wind or water energy into mechanical or electrical energy.
In one particular version of the single wing configuration, the wing power generator includes an aileron that is movably mounted to an opposite/trailing end of the wing, such that a change in the orientation of the aileron relative to the wing results in a change of the flow of air onto the wing which in turn causes a change in the direction of travel of the wing between the upper and lower position relative to the support base. There is a continuous need and focus on renewable energy, which may serve different sectors of any economy, such as agriculture, industrial, residential, transport etc. In the second embodiment, with reference now to Figure 15, end plates 96 may be fitted to the wing/s 18.1 , 1 8.2. The end plates 96 have the effect of increasing the effective aspect ratio and consequently reducing the aerodynamic losses (tip losses) of the wing/s 1 8.1 , 18.2. The remaining components in Figure 15 are the same as those in Figures 4 to 7, and will thus not be described again.
Wind speed is not constant, however, and thus wind power generation is generally inefficient and variable. This configuration may also not be ‘self-starting’ as there are two neutral points/positions in the oscillation cycle, as described above, where the wing incidence passes through zero, thereby resulting in a zero aerodynamic force.