# US 4,396,843 A · System for the generation of electrical energy from wind energy

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- Number: US 4,396,843 A
- Document ID: US4396843A
- Status: Granted
- Kind: A
- Application number: 06/280,080
- Filed: 1981-07-02
- Granted: 1983-08-02
- Earliest claimed: 1980-07-17
- Inventors: Jose Martinez Parra
- Web page: https://patentgrep.com/patent/US4396843A

## CPC

- F03D 3/00: Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor (controlling thereof F03D7/06)
- F05B 2240/911: already existing for a prior purpose
- Y02B 10/30: Wind power
- Y02E 10/72: Wind turbines with rotation axis in wind direction
- Y02E 10/728: Onshore wind turbines
- Y02E 10/74: Wind turbines with rotation axis perpendicular to the wind direction
- Y10S 415/907: Vertical runner axis
- F03D: WIND MOTORS
- F05B: INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- Y02B: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y10S: TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS

## Abstract

The subject-matter of the present invention is a system for the generation of electrical energy from wind energy consisting of a domed building (3) and a large dimension impeller (5) mounted thereupon. The shape of the impeller (5) is adapted to the curvature of the domed building. It is supported on the surface of the domed building via rollers (71) and rails (16). In the region of the rollers (71) and rails (16) members for braking and holding the vanes are provided. The rotary movement of the impeller is transmitted via a central axis (6) to a machine park (12) to (15) housed in the interior of the domed building (3) so as to generate electrical energy. The system according to the invention is distinguished by its excellent stability despite its large dimensions; cf. FIG. 2.

## Claims

### Claim 1

A system for generating electrical energy from wind energy, comprising a domed building upon which an impeller is mounted whose vertical axis penetrates the domed building at its highest point and transmits the motion of the impeller to an installation which converts the kinetic energy of the impeller into electrical energy, said impeller having vanes extending in the radial direction wherein at least the lower edge of the vanes of the impeller is curved in the radial direction to conform to the curved shape of the domed building and the vanes are supported on rails located beneath the lower edges of the vanes and held by them, said rails being spaced apart in the radial direction and anchored to the assembly of the domed building in such a way that they describe concentric circles around its highest point.

### Claim 2 (depends on 1)

A system according to claim 1 wherein the vanes of the impeller are curved both in longitudinal and in transverse direction.

### Claim 3 (depends on 1)

A system according to claim 1 wherein the vanes of the impeller are reinforced by profiles and connected and braced by cables.

### Claim 4 (depends on 3)

A system according to claim 3 wherein the cables are located at constant height between the upper edges, the middle region and the lower edges of the vanes as well as between the upper edge of one vane and the middle region of the adjacent vanes and between the middle region of a vane and the lower edge of the adjacent vanes, and vice versa.

### Claim 5 (depends on 1)

A system according to claim 1 wherein the vanes of the impeller move on the rails via rollers.

### Claim 6 (depends on 5)

A system according to claim 5 wherein the rollers represent part of a running, brake and holding member for the impeller vanes.

### Claim 7 (depends on 5, 6)

A system according to claim 5 or 6 wherein the outer surface of the rollers which is in contact with the rails is rubber.

### Claim 8

A system for generating electrical energy from wind energy, comprising a domed building upon which an impeller is mounted whose vertical axis penetrates the domed building at its highest point and transmits the motion of the impeller to an installation which converts the kinetic energy of the impeller into electrical energy, said impeller having vanes extending in the radial direction wherein at least the lower edge of the vanes of the impeller is curved in the radial direction to conform to the curved shape of the domed building and the vanes are supported on rails located beneath the lower edges of the vanes and held by them, said rails being spaced apart in the radial direction and anchored to the assembly of the domed building in such a way that they describe concentric circles around its highest point with said rails having a T-shaped configuration in at least their upper region; wherein
said vanes are supported and held by said rails with running, braking and holding members each of which include:
two first plates mounted to the vane perpendicular to the lower edge thereof via a profile in such a way that a gap is formed between said first plates in which runs the rail, the gap being narrower than the upper T of the rail;
two second plates arranged parallel to the surface of the vane and mounted respectively to its front and rear side via profiles;
an upper cover which is tightly connected with the second plates;
roller means located between the first and second plates and the cover for moving the vanes of the impeller on the rails; and
a pair of brake blocks each, rotatably mounted on the side of the second plates facing the vane, brake linings being located above the first plates on both sides of the perpendicular part of the T-shaped rail and hydraulic means for selectively pressing said brake linings against said rails.