Rotary kinetic fluid motors or pumps – With means for controlling casing or flow guiding means in...
Patent
1986-10-10
1988-12-06
Powell, Jr., Everette A.
Rotary kinetic fluid motors or pumps
With means for controlling casing or flow guiding means in...
415 4, 416 88, 416101, 416109, F03D 304
Patent
active
047892978
DESCRIPTION:
BRIEF SUMMARY
The invention relates to a wind drive mechanism with a housing, in which a vertical rotor is rotatable about an eccentrically located rotor shaft and in which means associated with the vertical rotor are displaceable relative to the rotor shaft and can be acted upon by the wind.
With such a wind drive mechanism, as is described for example in German Laid-Open Specification (DE-OS) No. 2,800,551, the wind energy existing in nature can be converted into technologically utilizable energy, for example electrical energy. Decisive for the economic feasibility of such a wind drive mechanism is its efficiency and its utilizability. The utilizabilities should be considered from, among other things, aesthetic and town planning points of view. Frequently, a decentral energy supply is required which, however, with known wind drive mechanisms often fails due to visual conspicuousness since the larger such an installation is the more it is conspicuous and unaesthetic.
The problem of the present invention to provide a wind drive mechanism of the initially described type which can be inconspicuously installed decentrally and according to the building regulations and which has a good efficiency.
This problem is solved in that the means which can be acted upon by the wind are formed as sails which can be wound in and out during the rotation of the vertical rotor, the rotor shaft is provided at both ends with a rotor head for receiving rotor rotating arms, the rotor rotating arms are slidable through the rotor heads and the magnitudes of the areas of the sails which can be acted upon by the wind can be determined by the rotor rotating arms. By these measures, a large sail surface can be acted upon by the incoming wind. During return travel, this area is reduced and, thereby, the oppositely directed wind resistance is reduced. The installation can therefore be carried out with a good efficiency in a relatively small construction and inconspicuously decentral installation.
For improving the aerodynamic effect, it is provided that the housing has an asymmetrical profile, which comprises a long housing outer wall and a short housing outer wall and the rotor shaft extends perpendicular to the profile in the housing. By these measures, a suction is produced at the wind outlet opening, which effects a further improvement of the efficiency of the sails.
Wind energy is always available with different intensities, so for regulating the wind amount acting on the wind drive mechanism it is provided that the housing has a wind entry opening which can be closed by protective shutters and a wind outlet opening provided with baffles. By the baffles, furthermore, the suction which occurs in the vicinity of the wind outlet opening is variable, it being provided that the protective shutters are adjustable by adjustment arms and the adjustment arms are driven by adjustment motors, and that the protective shutters extend vertically and are arranged overlapping one another in the wind entry opening of the housing.
For trouble-free guiding of the means acted upon by the wind, it is provided that the rotor rotating arms are guided horizontally between gear wheels and guide rollers and vertically between lower guide rollers and upper guide rollers in the rotor head housings of each rotor head, it being provided, for avoiding tilting and bracing of the sails, that the gear wheels of the upper and lower rotor heads are connected by connecting shafts so as to run in synchronism with one another. For optimum utilization of the incoming wind energy, it is provided that the rotor arms at their outer ends, facing away from the rotor heads, are provided with wind-in devices for winding in and out the sails stretched between the rotor shaft and the take-up shafts, and that the wind-in devices are associated with fast-running electric motors which quickly alter their directions of rotation and the wind-in devices are provided with vertically extending take-up shafts.
In order to be able to correctly position the wind drive mechanism even at low wind speed, it
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patent: 1293262 (1919-02-01), Walker
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patent: 2373207 (1945-04-01), Touhey
patent: 4059969 (1977-11-01), Awalt
patent: 4279569 (1981-07-01), Harloff
patent: 4303835 (1981-12-01), Bair
patent: 4619585 (1986-10-01), Storm
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