As shown in Figures 1 and 2, the device may also include a resilient return means 34 for returning the support 3 to a central position with respect to the positioning means 25. This return means 34 is connected, on the one hand, to the support 3, and, on the other hand, to the positioning means 25, and forces the support to move by means of the hinge toward a central position assumed by the support in the absence of any flow. As shown in Figures 1, 25a, 25b and 26, resilient stiffeners R can be installed to oppose resiliently the movement of the first area 6 of the membrane 4 on either side of a position (for example, a central position of this first area which is assumed when the membrane is at rest).
- El batido ZAM (zanahoria-apio-manzana)
- Height of lifting water: equal to or greater than 100 m
- Primero, calienta las tazas de agua
- Concepto de “Ventana de Seguridad de la Movilización Neural”
As can be seen in the embodiment shown in Figure 12, the attachment system 5 may have a first assembly 30 and a second assembly 31. These assemblies 30 and 31 are connected rigidly to each other and mounted rotatably with respect to a support axis B-B extending between these assemblies 30 and 31. A first flexible membrane 4a is attached to the first assembly 30 in a first area of the membrane, according to at least one of the modes of membrane attachment described above.
It should be noted that the invention may also relate to an energy recovery device including a membrane connected in a first area to a support via attachment means and connected in a second area to a transmission means which is on board the membrane, in which case this transmission means connects the second area to at least one on-board converter of one of the types defined above, this device further including separation limiting means such as those defined above. The object of the invention is an energy recovery device according to the generic definition given above, which allows improved energy recovery performance to be achieved, at least in certain types of flow. These first and second orientation axes 32, 33 are arranged in planes which are perpendicular to each other, such that the first orientation axis 32 can be placed in a horizontal plane while the second orientation axis 33 is placed in a vertical plane.
Dolor Neuropatico Herpes
Each junction of two springs of a series of springs forms a spring junction point allowing the two springs of the series to pivot with respect to each other. This longitudinal elastic stiffness in bending of the membrane is chosen as a function of the weight of the membrane and in such a way that, when the device is immersed in a liquid flow having a flow velocity in the range from 0.3 m/s to 5 m/s in absolute terms, the membrane (when seen in longitudinal section) has at least one complete undulation between its upstream and downstream edges (when the device has no intermediate points 17a or 17b) or between two of the intermediate points 17a, 17b of the membrane which are adjacent to each other. Although this is not shown in the drawings, it is also possible to provide means for regulating, independently of each other, the various separations of the areas 6, 8 and the intermediate points 17a, 17b with respect to their respective points of attachment to the attachment system 5. These adjustments can be chosen so as to adapt the positions of the intermediate points on the membrane as a function of characteristics of the flow and/or the forces transmitted by the membrane.
Ideally, the membrane is chosen so as to have: – high longitudinal elastic stiffness in tension, to limit its longitudinal elongation in tension; and – high transverse elastic stiffness in tension, to limit its transverse elongation in tension. The first membrane area 6 extends across the whole width Larg of the membrane along an upstream transverse edge 4c of the membrane, perpendicularly to a longitudinal sectional plane P of the membrane. The head deflector 19 which is placed at the start of the membrane (in other words, at its first area 6, along the upstream edge 4c) facilitates the initiation of the wave, because, when it is subjected to a flow, it pivots about an axis perpendicular to the longitudinal sectional plane P of the membrane and forces the membrane to pivot and undulate in the flow. As shown in Figure 1, by controlling the resistive force it is possible, for example, to cause the captured energy to vary as a function of the velocity of movement of the second membrane area along an axis Z-Z perpendicular to the fluid flow axis X-X, this perpendicular axis Z-Z extending in the longitudinal sectional plane P of the membrane 4. If this velocity becomes too low with respect to a predetermined low velocity, the value of the resistive force is reduced so that the membrane can start to undulate again at a predetermined velocity.