BRIEF DESCRIPTION OF THE DRAWINGS FIG

In this embodiment the distribution of the magnets 28, also called herein the density of the magnets 28, varies with height as shown here. No magnets 28 are placed near the zero displacement or rest point and the magnet density increases at higher amplitudes, as shown thereby increasing the harvesting rate at higher amplitudes.

Organos Sensoriales Sistema Nervioso - Banco de Preguntas.. 2A and B, it is possible to reverse the respective position of the coils 26 and magnets 28 in the embodiment of FIG. 2A and B may be provided such that there are no coils 26 immediately adjacent the magnet 28 with the bluff body 14 in the rest position. It should be apparent that more than two rates of harvesting may be provided and the schematic figures are merely for illustration.

Since the oscillation amplitude of the bluff body 14 varies with the flow rate 16, harvesting rates that varies with the flow rate 16 can be achieved in a simple, cost effective, passive design in the energy harvester 10 by varying the rate of harvesting with the position of the oscillating structure. SUMMARY OF THE INVENTION This invention is directed to cost effective, efficient, fluid flow induced oscillating energy harvesters that overcome at least some of the drawbacks of the existing designs by providing variable damping based upon oscillation amplitude. This invention provides a cost effective, efficient approach to maximizing power output in fluid flow induced oscillating energy harvesters. It is an object of the present invention to address this deficiency in the prior art fluid flow induces oscillating energy harvesters. The stand 12 may also be called a base, a housing, a support and/or a piling.

Dolor Neuropático Que Es

2A. In this embodiment of the invention the electrical generator 20 includes coils 26 mounted to the stand 12 and a magnet 28 (a plurality of magnets 28 may be implemented) coupled to the support 18 of the associated bluff body 14, wherein oscillation of the bluff body 14 will move the magnet 28 relative to the coils 26 to generate electricity in generator 20 in a manner generally known in the art. Oscillation of the bluff body 14 is driven by fluid flow 16 past the bluff body 14, wherein sufficient fluid flow 16 causes an oscillating movement of the bluff body 14 relative to the stand 12. The oscillating support 18 and bluff body 14 is suspended or supported by a spring 24. The spring 24 establishes a zero-displacement or rest position. FIG. 6B is analogous to the embodiment of FIG. In FIG. 6A the support 18 is replaced with a four bar linkage 46 and the rotary generator 20 is moved outside of the stand 12 to a position between the four bar linkage 46 as shown using the linkages 42 and 44 similar to FIG.

5 the compound motion of the four bar linkage 46 and the linkages 42 and 44 provides for the variable harvesting rate. Harvesting electrical power in the harvester 10 damps the motion of the oscillating structure. 2A and 2B the gap between coils 26 and magnet 28 varies with the amplitude of the oscillation of the body 14 in this linear generator. FIGS. 4A and B are schematic views of a stand 12 and a rotary electrical generator 20 (represented by dual pinions 32 and 34) of a fluid flow induced oscillating energy harvester 10 with variable damping based upon oscillation amplitude according to another embodiment of the present invention in which the electrical generator 20 converts oscillation of the at least one bluff body to rotation via pinions 32 and 34 which are coupled to a rotor of a rotor-stator (not shown) generator.

For example, FIG. 5 is a schematic view of a fluid flow induced oscillating energy harvester 10 with variable damping based upon oscillation amplitude according to another embodiment of the present invention in which a rack 36 is mounted to a linkage 42 coupled to the support 18 and meshes with a pinion 32 driving a rotary generator with the pinion 32 mounted on a separate linkage 44 coupled to the stand 12. Dolor muscular en las piernas por ejercicio . The compound motion of the support 18 and the linkages 42 and 44 provides for the variable harvesting rate. In other words, the rack 36 engages the larger diameter pinion 32 to drive the generator near the zero-displacement position and at larger displacements, rack(s) 38 could engage smaller diameter pinion 34, achieving a higher generator rotation per length of oscillator movement. In this form, when the oscillation is near the zero-displacement or rest point, the rotary generator 20 would turn few revolutions per length of travel (via large pinion 32 and associated engaged rack 36) and relatively many revolutions per length of travel (via smaller pinion 34 and associated engaged rack 38) at higher displacements.

4A and B, a dual rack 36 and 38 is attached to the support 18 of the oscillating structure and meshes with and drives respective pinions 32 and 34 that would in turn drive the rotary generator 20, for example. With this configuration the gap between the magnet 28 and an immediately adjacent coil 26 is lower at a higher amplitude of the oscillation of the bluff body 14 than at a lower amplitudes of the oscillation of the at least one bluff body 14 as generally shown.

Dolor Espalda Pecho

4. the rate of rotation generated in the electrical generator per oscillation displacement is higher at a higher amplitude of the oscillation of the at least one bluff body than at a lower amplitude of the oscillation of the at least one bluff body. 7, is generally known in the art and need not be described in detail herein.

Tipos De Dolor Dental

Congreso de la SED: big data, el papel de Enfermería y la.. 61/994,197 filed May 16, 2014, entitled “Fluid Flow Induced Oscillating Energy Harvester with Variable Damping Based upon Oscillation Amplitude” which application is incorporated herein by reference in its entirety. The parent application was published as WO2015-176,057, which is incorporated herein by reference. In the harvester 10, each bluff body 14 is mounted for movement relative to the stand 12 at least in a direction perpendicular to the direction of fluid flow 16. As shown each bluff body 14 is coupled to a support 18 which extends into the stand 12 to an electrical generator 20 within the stand 12. Ejercicios de core para dolor lumbar . The support member 18 may take a number of forms and can include several elements, but can be generally described as the coupling between the moveable elements of the electrical generator 20 and the oscillating bluff bodies 14. The schematic figures form a representational image of the function of the support member 18. Conventional bearing, packing and sealing structures 22 can maintain and restrict the movement of the support 18 and associated bluff body 14 to a constrained oscillation motion.

Dolor Espalda Al Respirar

6A except the four bar linkage 46 is replaced with a Peaucellier-Lipkin linkage 48, wherein the compound motion of the Peaucellier-Lipkin linkage 48, and the linkages 42 and 44 provides for the variable harvesting rate. One embodiment of the invention provides a fluid flow induced oscillating energy harvester including a stand supporting the energy harvester and configured to support the energy harvester in a fluid flow; at least one bluff body extending from the stand configured to be positioned substantially perpendicular to the direction of fluid flow, wherein each bluff body is mounted for movement relative to the stand at least in a direction perpendicular to the direction of fluid flow, wherein sufficient fluid flow causes an oscillating movement of the bluff body relative to the stand; and an electrical generator coupled to at least one bluff body, wherein the electrical generator is configured to convert oscillating movement of the bluff body to electrical power, and wherein the electrical generator is configured such that a harvesting rate is defined as the electrical power generation per movement of the bluff body and wherein the harvesting rate is varied throughout a range of oscillation amplitudes and is lower at small amplitudes than greater amplitudes.

7 shows a pair of bodies 14 extending from the side of the stand 12, which may be more common arrangement while the remaining figures suggest a placement of the bodies 14 above the stand 12 mainly to simplify the schematic illustration of the components of the harvester 10. Both arrangements are possible, as is suspending the bodies 14 below the stand 12 where the stand 12 is mounted above the primary flow 16, such as to a floating platform or barge and which surface location may represent a simpler easier location for the electrical generator and associated elements.

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RELATED APPLICATIONS This application is a continuation of International Patent Application serial number PCT/US2015/031331 entitled “Fluid Flow Induced Oscillating Energy Harvester with Variable Damping Based upon Oscillation Amplitude” and which published Nov. International Patent Application serial number PCT/US2015/031331 claims priority to U.S. FIG. 2B is an enlarged schematic view of a stand and an electrical generator of the fluid flow induced oscillating energy harvester of FIG. 2B is an enlarged schematic view of a stand 12 and an electrical generator 20 of the fluid flow induced oscillating energy harvester 10 of FIG.