In the relevant art literature of mechanisms, the Scotch Yoke is also called a “crank-and-slider”. 18 with FIG. 6. In this present embodiment the thrust section of the Scotch yoke R01 hosts two sliders rather than, as in FIG. SUMMARY OF THE DEVICE It is an object of the present device to generate electrical energy from the kinetic energy of a fluid. 6, an alternative embodiment to the device of FIG. 1 in two regards: the tilts are jointly controlled by a single electric motor A50 driving an auxiliary single flat crankshaft A51 rather than by two independent linear motors, and the electric generator A8 is located external to the main frame, or exoskeleton. In column two the tilts of the blades are such as to cause the leading edges of the pairs to diverge from each other as commanded by the movements of the tilt rods A21, A22.
Two identical shaped cams G01, G02 are mounted to the crankshaft A07 with a phase difference of 180-degrees. These cams control the heights of the downwind tips of rocker arms G05 and G06 respectively. Various combinations of features of the embodiments described herein can be incorporated into yet other variations of those embodiments, depending upon the applications in which these embodiments are intended. Dolor muscular abdomen izquierdo . That is, during these intervals they are not really “flying” independently. The work done upon the blades during the opening of the trap corresponds to the adiabatic expansion of working fluid in a Carnot Engine. In accordance with a seventh aspect of the device, the blades are airfoils capable of creating lift as a result of fluids flowing over their surfaces, and the angles at which they are tilted provides Bernoulli-effect forces which drive apart those blades whose leading edges are tilted away from the leading edges of adjacent blades.
In other embodiments, the “trap and release” effect is used to drive the blades apart. 8, but other embodiments of this portion of the device considered earlier could serve in its stead. FIG. 20 depicts an alternative embodiment of the device in which the upward and downward driven thrust rods are connected at the top by a rack and pinion mechanism, and the tilt rods are likewise connected at the top by a rack and pinion mechanism. The up-and-down motion of the support shaft is transformed, through a Scotch-yoke mechanism, into a rotary motion of a horizontal shaft.
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The thrust rods at the opposing ends of the blades, T13 and T14, have been modified in the same way, being linked by a pinion mated to the upper ends of the rods through teeth at said upper ends. Blade A6 has been driven upward, pulling thrust rod D13 upward, and Blade A5 has been driven downward, pushing thrust rod D14 downward. The next column, Col 2 illustrates the blade tilts and separations midway in the stroke. The vertical thrust component of the force on each blade at mid stroke is represented by arrows, M4 for upward thrust, and M3 for downward thrust.
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12, an all-mechanical means for achieving a “Trap and Release” function is shown. Furthermore, this embodiment requires only a single linear motor to provide tilt control, as will be apparent from the configuration shown in FIG. After this the polarity of tilt is reversed. In the present device a new stroke should be timed to begin directly after the end of the previous stroke, using the tilt control of the blades to begin the new stroke. The fourth column, Col 4 illustrates the disposition of the blades at the end of the first stroke and the beginning of the following stroke.
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- The apparatus of claim 9, further comprising
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Column 4 portrays the condition at the end of the first stroke where again the blades are oriented horizontally, as commanded by the tilt rods, driving the pairs of blades into a parallel relationship. Initially, as shown in the column 1, the blades are oriented horizontally in pairs, the blades of each pair parallel to each other. Note that the shaded blade is the lower member of each pair. The embodiments described herein are all far more easily and quickly deployed than the huge wind power turbines that presently dominate the marketplace. As previously indicated, the airfoils in this embodiment can be described as “flying”, since the thrust forces involved correspond to the lift of an airfoil in accordance with Bernoulli’s principles, rather than exhibiting trap and release behavior. 5. That is, the tilt of the blade arrays is controlled by the second crankshaft, which in turn is powered by the electric motor E01.
In accordance with a thirteenth aspect of the device the array of blades includes a plurality of odd numbered blades that make up an odd sub-array and a plurality of even numbered blades that make up an even sub-array. In accordance with a fourteenth aspect of the device the upward thrust members include one or more odd thrust rods pivotably coupled to the ends of each of the odd numbered blades, and the downward thrust members include one or more even thrust rods pivotably coupled to the ends of each of the even numbered blades.. Dolor de espalda zona lumbar