Wind power station

Details Wind power station Wind power station

1994-07-18

1996-05-21

Lopez, F. Daniel

Rotary kinetic fluid motors or pumps

With means for controlling casing or flow guiding means in...

415 41, 415 67, F03D 706

Patent

active

055183620

DESCRIPTION:

BRIEF SUMMARY
FIELD OF THE INVENTION

The invention relates to a method for transforming wind energy into electric energy. In the wind power station there are a number of rotors rotated by wind energy and coupled to function partly by the same wind steam.


BACKGROUND OF THE INVENTION

Wind power stations are previously known a.o. from Finnish Patent No. 11,121 and Application No. 863734. Further, in the USA and in Denmark wind power stations with 3-blade rotors are known, but the utilization of wind dynamics for producing electricity is poor in these stations.


SUMMARY OF INVENTION

By means of this inventive method and the wind power station a decisive improvement is achieved in this respect. The invention is characterized by the features described herein.
The most important advantages of the invention are that the wind steam is effectively guided in the right direction simultaneously to a number of rotors and the rotating wind stream of the lower rotors activates the rotation of the upper rotors and there are several generators connected to the rotors. The wind speed is raised before reaching the main rotor and transverse wind guiding plates at the blade tips can retain the wind and make the wind circulate along the blades in order to improve the efficiency of the wind power station.


BRIEF DESCRIPTION OF THE DRAWINGS

In the following the invention is presented in detail with reference to the enclosed drawings where FIG. 1 is a side view of a wind power station. FIG. 2 is a front view of a wind power station.
Like elements are provided with like numbers through the several views.
FIG. 1 shows a wind power station mounted on a base 1 on which it can turn by means of a slewing bearing at point 2. In the lower part of the wind power station frame 13 four superposed rotors 4 are arranged, which have a radial blade system 5. The rotors 4 have lateral axles fastened with bearings and which rotate clockwise. The rotational energy of the rotors 4 is utilized for production of electricity. The wind is directed to the rotors 4 by means of guiding plates, of which a part 6 is visible in this sectional illustration. Further, the wind stream is directed to the main rotor 8. The stream enters from an advantageous direction from channel 7 and turns the main rotor 8. Further, the main rotor 8 is rotated by direct wind and wind entering through a guide 12, the direction of which wind is also advantageous by means of this arrangement. The transverse wind guiding plates 10 at the tips of the rotor blades 9 can retain the wind and make the wind circulate along with the blades, thus activating the rotating of the rotor 8 and furthering the production of electricity by a generator 16.
Viewing from the wind direction, there is behind rotor 8 a raised aileron 17 and a plate bent in conformity with the rotor 8 to form a housing 11, which is substantially broader than blades 9. Casing 11 forces the wind to stream out from rotor 8 from one side of the rotor 8 and, further, the casing retains the wind stream, thus activating the rotation of rotor 8 and production of electricity of the generator 16. Also shown in FIG. 1 is a rudder 15 which function to keep the device facing the proper direction.
FIG. 2 shows a wind power station from the front, whereat on the base 1 there is a lower part 13 with its four wind-guiding openings, which have side guides 3 and upper and lower guides 6. The upper part with the main rotor 8 is mounted on the lower part. The wind is turned to the main rotor 8 by side guides 14, which are arranged on both sides of the main rotor 8, and plates 12 in front of the rotor. From the upper side of the guides the wind has direct access to the rotor blade system. The back plate 11 is broader than blades 9. The main rotor 8 is arranged eccentrically with respect the wind power station pivoted vertical axle and a rudder 15 is placed on the opposite side to keep the device in the proper direction. The rudder 15 can also be replaced for instance by another parallel main rotor, whereby the device remains turned direct against the

REFERENCES:
patent: 763795 (1904-06-01), Ravelli
patent: 1476457 (1923-12-01), Miller
patent: 5007241 (1991-04-01), Saitou

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