US5823749A – Vertical-axis Wind Turbine With Two-phase Sails – Google Patents

microBIO: No beses al sapo, … ni a la tortuguita: tienen.. Lift machines having high speed operation with low starting torque, whereas the opposite is more the case for drag types. The top two antifriction devices of the power shaft are tapered roller bearings and are situated near opposite ends of the solid upper portion of the power shaft 32. These bearings are faced in opposite directions in wooden, cylindrical blocks that carry the weight and lift exerted by the rotor. They should exceed in distance from the center line, the length of the mast and rotor from the foot board 39. Detachment of one of these two guy wires 34 from its stake, allows the mast to be pivoted downward for disengagement, removal to another location, or maintenance. FIG. 6 is a top view of the rotor in its operating state where typical sail operations can be seen. These problems can be partially alleviated by adding a second rotor in a stacked arrangement whereby the rotors are offset by ninety degrees.

  • The apparatus of claim 80, wherein the mechanical power extraction component is a pump
  • Figuras brillantes y parpadeantes
  • Limpia la piel y sécala
  • Otra opción consiste en tomar un suplemento de alta calidad
  • Usable Generator Produced HP
  • Usar calor o frío en la parte dolorida de la espalda

Dolor óseo xifoides y cómo lidiar con ello - El Blog de la.. Maintenance and assembly are achieved by removing these screws and extracting the power shaft. FIG. 8 is a perspective view of the wind turbine assembly in its operating state including the preferred mast arrangement. FIG. 6 is a top view of the wind turbine rotor assembly in its operating state that shows the sail phases of the rotor. FIG. 2 is a fragmentary, top view of the rotor assembly showing three major components in their relative size and alignment.

FIGS. 7, 8 show the preferred embodiment of the wind turbine with its mast 30, transmission components and arrangements. FIGS. Dolor de espalda por menstruacion . 3-4 shows the frame structure in its preferred form, whereby the rim 12 is rotated forty-five degrees with respect to the hub 14 and is held in that position by a plurality of wire spokes 22-24. Upper spokes 22 radiate diagonally from the rim connection points 20 to the corners of the hub 14 and are secured by the cable guides 18. Four additional spokes 24 are provided to connect the bottom axle flange 26b to the rim connection points 20. These lower spokes 24 add vertical stability to the rotor structure. Specifications of a typical rotor are as follows: Sails 10 made from Dacron fabric with the dimension 2 m.×2 m. reside on a frame in which the hub 14 measures 1 m.×1 m. The rim 12 measures 2.828 m. between the rim connectors 20. The extended portion of the rim measures 0.7 m. The total length of a rim member is 3.52 m. Typically, rim 12 and hub 14 components are made of galvanized tubular steel (with diameters of 2.3 cm.

The action of the sails 10 is linked in pairs to control their corresponding shapes (FIG.

FIGS. 6, 7 shows the sails in their respective phases. The operation of the present invention is shown clearly in FIGS. Ample starting torque supplied by the wind turbine of the present invention precludes the need for complex gear reduction at the output end. Esclerosis multiple dolor de espalda . The operation is dependent on the proportion and arrangement of the rim 12, hub 14, guides 18, and sails 10. The proportion and arrangement of these components remain consistent while the size of the complete rotor assembly can vary according to desired power and local wind conditions. The action of the sails 10 is linked in pairs to control their corresponding shapes (FIG. The invention resides in the provision of sails 10 that open and close opposingly in conjunction with a frame structure 12, 14 that supports, controls, shapes and rotates the sails 10 on a vertical shaft, and transmits the energy to the ground through a shaft contained in a mast structure.

Dolor Espalda Y Abdomen

The sails 10 are mounted on a lightweight, horizontally deposed frame 12,14 that rotates on a vertical axle 26. The open or inflated sail 10a, describes a scoop shape, while the closed or deflated sail 10c describes a thin planar profile that resembles a wing. The threaded end extends beyond the top of the mast and is threaded into the bottom axle flange 26b of the rotor, thereby providing a means of attaching and detaching the rotor from the mast 30. Preferred direction of rotation and shaft threading must conform to prevent self-detachment during operation. FIG. 4 is a top view of the rotor frame structure. These guy wires 34 are fastened to the top mast flange 48a, and to stakes at four outward points on the ground.

Two of these stakes are placed outward from the mast 30 on an imaginary line that runs though the hinge pins 41. The other two stakes are placed in the ground at 90 degrees from the center of this line. Two major deficiencies can be sighted in this design: (a), torque is unevenly distributed during operation, and (b), if it is improperly oriented to the wind, starting torque is zero. A hinge pin through the holes of the two `L` brackets provides a pivot point from which the mast is raised. Dolor bajo de espalda causas . An exception to this design of high speed machines is the Darrieus, which revolves on a vertical shaft. Continuous experimentation of the blade design, size, number, and configuration has sought the optimum compromise between mutually exclusive design criteria: good starting torque and high speed operation. High speed machines are used for electrical generation where low starting torque is less of a problem.

FIG. 5 is a perspective view of the rim attachment bracket.

Drag machines typically have high solidity rotors with large, flat blades pitched in order to push the rotor in a given direction. The mast 30 terminates at both ends with a flange 48a, 48b (FIG. 30 where it terminates with a drive pulley for power output 36. Wooden, or plastic blocks 46 with center plastic bushings, are spaced within the mast 30 at 1 to 1.5 meter intervals. The properties of this new blade orientation created complexities not encountered with the vertical shaft machines. FIG. 5 is a perspective view of the rim attachment bracket. The structure of the rotor consists of a square rotor wheel with a square hub that carries collapsible sails on each of four elongate rim members. The sails 10 are joined together in pairs (FIG.

The spokes 22,24 are typically made of wire rope 3 mm. Turnbuckles 28 are provided on the lower spokes 24 to facilitate assembly and to adjust the tension of the upper 22 and lower 24 spokes. 7), are provided within the tube at selected intervals, to carry the power shaft 32 to the base. Full scale use of wind power emerged in Persia in the 7th century. Wind speed of 5 meters per second is usually needed to supply ample power for pumping water from a 10 meter well. Pumping water for the house and the livestock is an example of an obvious task, but other important tasks can be cited as well. Drainage of remotely flooded low spots in a field is another example of this desirable advantage. These blocks 46 are positioned on the power shaft with top and bottom collars and are not fixed to the mast 30. With this arrangement, the bushings and shaft are installed or removed from the mast 30 as a unit.

To utilize this free energy, one must not only buy and install a factory manufactured windmill and tower, but expensive batteries, inverters, controls, transmission cables, and appliances as well. The transmission of power in the horizontal type is made unduly complex by the direction finding apparatus, whereby the head must be free to rotate with the direction of the wind. The western windmill with its horizontal axis and blades rotating in a vertical plane was believed to be an independent invention from around the 12th century. The inflated sail 10a pulls on the cables 16 until its partner sail 10b is drawn tightly over the frame.

Dolor Espalda Cáncer Pulmón

To accomplish this, the cables must pass through diagonal guides 18 and have sufficient slack to allow appropriate opening of one sail and proper closure of the other. Any direct mechanical means of delivering power to the ground must avoid causing the head to rotate out of the wind when resistance is encountered during work loading. FIG. 7 shows a perspective view of the wind turbine from the side in the same respective phases as in FIG.

Advancing sail 10b is fully deflated.

Wind (indicated by the arrow) encounters each sail at a different angle as they rotate into and away from it. Receding sail 10a is completely inflated. Receding sail 10c is partially inflated. Advancing sail 10b is fully deflated. The hub 14 forms a square with a cable guide 18 at each corner. The tower, in most cases, interferes with the function by creating turbulence and obstruction. They are heavy, permanent structures rigidly dedicated to both location and function. Cuando poner calor o frio al dolor lumbar . The art comprises past designs that have selectively diverged in function and could be categorized as: lift and drag machines. The energy derived from lift type systems is typically expensive. Disassembly of the mast is accomplished by the detachment of the wire braces 42 from the bottom flange 48b. The mast 30 can then be partially separated to reveal the power-shaft coupling (not shown). Apart from these improvements it has some serious drawbacks.

Dolor De Espalda

Most of these functions have been taken over by more reliable and steady sources of power. The top portion (about 50 cm.) of the power shaft 32 is a solid steel shaft about 2.5 cm. All of these objects contribute to increased torque and swept area, resulting in greater power potential. These technically sophisticated machines are not without hazard. These cables are typically about 2 mm. The measurement of the cables is typically one and one half the diagonal measurement of the hub. Cable guides 18 at the four corners of the hub structure 14, are shown clearly in FIG. The bottom flange 48b is attached to a hinged foot 38 (FIG. Stakes 40 driven into the ground through holes in the foot board 39, secure the footing. 8) that allows the mast to be raised or lowered while maintaining a fixed footing. Additional specifications of the rotor and mast (tower) will be described below.