In one form, the power generator is an electrical power generator and includes an electrical generator drivingly connected to the blade assembly. In a third aspect, the present invention provides a power generator for using kinetic energy from a flowing fluid to generate power, the power generator including: a blade assembly having a head end for facing oncoming flowing fluid, a tail end spaced from the head end for facing in the direction of flow of the fluid, and a rotational 30 axis extending between the head end and the tail end, the blade assembly including a blade arrangement which includes a plurality of beams spaced along the length of the rotational axis between the head end and the tail end of the blade assembly, and at least one mounting formation connected to the blade arrangement, each mounting formation WO 2009/062262 5 PCT/AU2008/001705 being adapted to permit mounting of the blade assembly for rotation about its rotational axis, so that in use fluid flowing past the power generator assembly interacts with the blade arrangement to rotate the blade assembly about its rotational axis; and a generator drivingly connected to the blade assembly for generating power in 5 response to rotation of the blade assembly.
Unlike, for. 15 example, bio- and fossil fuel which, when used in power generation, go hand-in-hand with emission of harmful combustion gasses into the atmosphere, generation of power by using flowing fluids has no or very little adverse effects on the atmosphere. 6 shows the blade assembly 14 used in the generator assemblies 1 Ga and 1 Gc 20 shown in Figs. 8 shows a seventh embodiment of electrical power generator assembly 10g. The assembly 1 Gg is similar to that shown in Fig. 6 is a perspective view of the blade assembly of the power generators shown is in Figs. If this is the WO 2009/062262 10 PCT/AU2008/001705 case, the generator 30 can be used as a motor to apply a torque to the shaft 24 in order to start the blade assembly 14 rotating. In another example, the generator can be produced of 10 strong, lightweight material and effectively used as a ‘kite’ in the wind.
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The blades 44 reduce in diameter as they wind around the shaft 24 from the head end 16 to the tail end 18 following the internal dimension of the shroud 50. The distal ends of the blades 44 are also bonded to the interior surface of the shroud 50. As a to result, in use, the shroud 50 rotates with the blades 44, which creates a vortex in front of the shroud 50. Vanes 90 may be installed on the leading edge of the shroud head end section 50a in order to further increase the vortex induced in front of the shroud 50. This vortex is further aided by the increased velocity of the tips of the blades 44 at the entry of the head end 16 of the blade assembly 14 in creating suction pressure at the head end 16 is of the shroud 50. The combination of: decreased pressure inside the shroud 50; decreased pressure behind the shroud 50; the rotating shroud 50 inducing a vortex in front of the blade assembly 14; the flow vanes inducing a vortex in front of the blade assembly 14; and the smaller pitch of the blades at the entry of the blade assembly 14 results in substantially more fluid being sucked into the blade assembly 14 than would otherwise 20 occur.
Tipos De Dolor De Espalda
The shroud head end section 50a, being shaped as a venturi, produces 25 an area of low pressure behind the blade assembly 14 which advantageously results in a much freer flow of fluid through and exiting the shroud 50. Further, as the shroud 50 is bonded to the blades 22, the shroud 50 rotates in conjunction with the blades 22 and the rotational motion of the shroud 50 induces a swirl or vortex in front of the shroud 50. This vortex is advantageous as it models a whirlpool (as found in nature) and sucks 30 additional fluid into the blade assembly 14 than would otherwise pass through it. Dolor lumbar cancer . The shroud 50 can also be of unitary moulded construction, for increased strength. In a second aspect, the present invention provides a propulsion or pump device adapted to eject a fluid, the propulsion device including: a blade assembly having a head end for fluid inlet, a tail end spaced from the head end and facing in the direction of fluid outlet, and a rotational axis extending between the head end and the tail end, the blade assembly including a blade arrangement which is arranged in generally 2a helical fashion about the rotational axis, and at least one mounting formation connected to the blade arrangement, each mounting formation being adapted to permit mounting of the blade assembly for rotation about its rotational axis, so that in use fluid drawn past the propulsion device interacts with the blade arrangement during rotation of the blade assembly about its rotational axis; and WO 2009/062262 3 PCT/AU2008/001705 a motor drivingly connected to the blade assembly for rotating the blade assembly to cause fluid flow from the tail end section.
Optionally, the generator 30 can be replaced with a motor which applies torque 25 to the shaft 24 which in turn produces rotational motion of the helical blade 44 and provides a thrust in the fluid from the tail end section 16 to propel a craft or pump the fluid.
In a further variation, a fly wheel (not shown), can be attached to the shaft 24 in order to store rotational energy and reduce fluctuations in rotational power due to turbulence in the fluid flow 12. In this configuration, the power generator assembly 10b may not be self starting. 4 shows a fourth embodiment of an electrical power generator assembly 10d. Once again, like features to those described with reference to earlier embodiments are denoted with like reference numerals.
1Oe. Like features to those described with reference to earlier embodiments are again denoted with like reference numerals. Fig. 3 shows a third embodiment of an electrical power generator assembly 10c. The assembly 10c is similar to those shown in Figs. 38 and the bearing 28 can be removed so that the assembly 10b finds its own optimal alignment in a manner of a wind sock, as previously. Optionally, the (tail end) stays 38 and the bearing 28 can be removed which 5 allows the blade assembly 14 to find an optimal alignment in the fluid flow 12, in a similar manner to that of a wind sock.
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The shroud, preferably, is of multi-section or unitary moulded construction, having a head end section via which a flowing fluid enters the shroud, a tail end section via which flowing fluid exits the shroud, and an elongated intermediate section extending 10 between the head end section and the tail end section, with the intermediate section converging from the head end section towards the tail end section. Malestar general dolor muscular . More particularly, the blade assembly 14 is housed within a generally frusto-conical shroud 50. 1o The distal end of the beams 22 each include a roller 52 which allows axial rotation of each of the beams 22 with respect to each other to occur inside the shroud 50 while still maintaining structural integrity and adequate fluid sealing between the exterior of the beams 22 and the interior of the shroud 50. The shroud 50 is of multi section or unitary moulded construction having a head is end section 50a, via which the flowing fluid 12 enters the shroud 50; a tail end section 50b, via which the flowing fluid 12 exits the shroud 50, and an elongated intermediate section 50c extending between the head end section 50a and the tail end section 50b. The intermediate section 50c also converges in diameter from the head end section 50a. towards the tail end section 50b. The head end section 50a of the shroud 50 also 20 converges towards the intermediate section 50c and the tail end section 50b diverges away from the intermediate section 50c such that the shroud 50 is generally in the form of a converging-diverging venturi having a converging elongated throat defined by the intermediate section 50c. At all points along its length, the shroud 50 has a circular cross sectional profile.
Dolores Musculares Por Ansiedad
The generator 30 can also include a gear box to change its speed of rotation and increase its efficiency. 5 Although the invention has been described with reference to preferred embodiments, it would be appreciated by persons skilled in the art that the invention may be embodied in many other forms. 3. Other numbers of the equiangularly spaced helical blades (eg. The assembly 10d has a plurality, in this case, a pair, of equiangularly spaced s helical blades 44, similar to that shown in Fig. The beams of the blade assembly are preferably arranged in generally helical 25 fashion about the rotation axis. The network of flexible elements are, preferably, arranged such that the generator can be aligned with the head end thereof facing oncoming flowing fluid, preferably so that it aligns itself, in accordance with the direction of flow of the fluid. The beams 22 can also be configured to.
Preferably, the shroud is of thin wall construction, and converges along at least 5 part of its length from its head end to its tail end, said convergence corresponding to the tapering of the blade assembly. More preferably, both of the head end section and the tail end section of the shroud are flared in bell mouth fashion. 12 radially inwards towards the shaft 24 in order to minimise fluid escaping the boundary 42 of the housing.
50. The slotted ejector arrangement 102 rotates with the shroud 50. The gaps 104 between spaced apart sections 106 of the slotted ejector arrangement 102 allow fluid flowing around the exterior of the assembly 10e to effectively inject, as shown by arrows 108, into the fluid flow leaving the shroud. In fast currents, a shorter slotted ejector may be utilised. Medicamentos para el dolor muscular en la espalda . As a result, the reactive torque, transmitted into the stay cables 36 is minimised and the overall assemblies 10e advantageously do not try and rotate inside their mountings or through the cable 36. Fig. 72 to the anchor 74 and then run along the seabed 76 to shore. 7 is a perspective view of a sixth embodiment of a power generator; and Fig. If desired, the electrical generator is replaced with a hydraulic generator which produces hydraulic power. 8, the cross sectional area of the flow decreases and its pressure decreases.
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Preferably, the to hydraulic generator is in turn connected to an electric generator. 2, and a shroud 50, similar to that shown in Fig. Fig. 5 shows a fifth embodiment of an.