Prime-mover dynamo plants – Fluid-current motors – Wind
Reexamination Certificate
1999-12-03
2001-06-19
Ponomarenko, Nicholas (Department: 2834)
Prime-mover dynamo plants
Fluid-current motors
Wind
C290S044000
Reexamination Certificate
active
06249058
ABSTRACT:
FIELD OF THE INVENTION
This invention relates in general to electricity producing devices and more particularly to wind driven generators and the like.
BACKGROUND OF THE INVENTION
Wind powered electricity generating devices provide a pollution free alternative to the generation of electricity by coal burning or nuclear fueled power generation mechanisms. Wind powered generators will enjoy a increased usage in the future in view of the rapidly dwindling natural resources currently used for power generation throughout the world.
Many styles and variations of wind powered generators are known, including those disclosed in the following U.S. Pat. Nos. 5,384,489 to Bellac; No. 4,419,587 to Benton; No. 4,382,190 to Jacobson; No. 4,345,161 to Crompton; No. 4,057,270 to Lebost; No. 2,177,801 to Erren; No. 2,332,294 to Bohmfalk; No. 2,153,523 to Roberts et al.; and No. D384,165 to Suciu. Wind generation devices disclosed in these patents include improvements in wind collection efficiency, counter-rotating mechanisms, and friction reducing designs.
Generally, the counter-rotating armature/rotor designs of the prior art are unduly complex and expensive to construct. Further, the counter-rotating wind driven generators of the prior art are not readily raised to capture higher velocity winds and also capable of being lowered to ground level for maintenance or repair purposes. One prior art design discloses a hydraulic mechanism for raising and lowering the device, U.S. Pat. No. 2,177,801. However, such a mechanism is expensive and inflexible.
What is needed is a counter-rotation wind powered electric generator whose design incorporates more efficient and more economical features for use in a variety of climatic conditions. The device should also include ease of repair and maintenance features.
SUMMARY OF THE INVENTION
A wind driven generator, according to one aspect of the present invention, comprises a vertically oriented stationary pole, commutator means coaxially disposed coaxially about and attached to the pole and including a first metal ring and a second metal ring, wherein the first metal ring and the second metal ring encircle the pole, armature means coaxially disposed about the pole in close proximity to the commutator means, the armature means including a winding having a first lead and a second lead, the armature means further including a first brush and a second brush, the first brush situated to make contact with the first metal ring and the second brush situated to make contact with the second metal ring, and wherein the armature means includes first bearing means attached to and disposed between the armature means and the pole for reducing rotational friction, rotor means coaxially disposed about the pole and disposed radially outward of and in close proximity to the armature means, the rotor means including a plurality of magnets situated adjacent the winding and producing a plurality of flux fields that impinge upon the winding when the rotor means rotates about the pole, and wherein the rotor means includes second bearing means attached to and disposed between the rotor means and the pole for reducing rotational friction, first wind collecting means attached to the armature means for collecting wind and inducing the armature means to rotate with respect to the pole, and second wind collecting means attached to the rotor means for collecting wind and inducing the rotor means to rotate in a direction opposing the direction of rotation of the armature means.
One object of the present invention is to provide an improved wind driven generator.
Another object of the present convention is to provide a wind driven generator that is readily elevated into higher velocity wind occurrence and easily lowered for servicing and maintenance.
Still another object of the present convention is to provide a wind driven generator that is more economical to manufacture.
These and other objects of the present convention will become more apparent from the following description of the preferred embodiments.
REFERENCES:
patent: D. 384165 (1997-09-01), Suciu
patent: 2153523 (1939-04-01), Roberts et al.
patent: 2177801 (1939-10-01), Erren
patent: 2332294 (1943-10-01), Bohmfalk
patent: 4057270 (1977-11-01), Lebost
patent: 4061926 (1977-12-01), Peed
patent: 4345161 (1982-08-01), Crompton
patent: 4419587 (1983-12-01), Benton
patent: 5384489 (1995-01-01), Bellac
patent: 6097104 (2000-08-01), Russell
patent: 6127739 (2000-10-01), Appa
patent: 6172429 (2001-01-01), Russell
Brant Kyle S.
Ponomarenko Nicholas
LandOfFree
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