Vertical axis wind powered generator

• US 5,038,049 A
• Filed: 09/12/1990
• Issued: 08/06/1991
• Est. Priority Date: 09/12/1990
• Status: Expired due to Fees

• Current Assignee: Shuichi Kato
• Original Assignee: Shuichi Kato
• Inventors: Kato, Shuichi
• Primary Examiner(s): Pellinen, A. D.
• Assistant Examiner(s): HOOVER, ROBERT
• Application Number:
  US07/581,016
• Time in Patent Office: 328 Days
• Field of Search: 290/54, 290/55, 415/2.1, 415/4.4, 416/9, 416/197 A
• US Class Current: 290/55
• CPC Class Codes: F03D 3/0454 and only with concentrating action, i.e. only increasing the airflow speed into the rotor, e.g. divergent outlets F03D3/0463 takes precedence
• CPC Class Codes: F03D 3/0481 and only with concentrating action, i.e. only increasing the airflow speed into the rotor, e.g. divergent outlets F03D3/049 takes precedence
• CPC Class Codes: F03D 9/25 the apparatus being an electrical generator F03D9/22 takes precedence
• CPC Class Codes: F03D 9/32 on moving objects, e.g. vehicles
• CPC Class Codes: F05B 2240/941 which is a land vehicle
• CPC Class Codes: Y02E 10/74 Wind turbines with rotation axis perpendicular to the wind direction

Abstract

An apparatus for generating electric power from wind includes a base, a pair of upstanding, generally parallel, spaced apart walls rotatably mounted on the base and defining an inlet end and an outlet end for wind, an electric power generator mounted on the base and having an input shaft, and a vertical axis cylindrical rotor having a plurality of wind driven vanes and mounted on the base between the walls, and having an output shaft coupled to rotate the input shafts. A curved inner modulator is rotatably mounted on the base inside said rotor and is selectively movable for controlling wind flow through the rotor. An inlet modulator is rotatably mounted on the base at the inlet end and is selectively movable for controlling wind flow to the rotor. A first generally planar director is pivotally mounted on an outer surface of one of the walls and a second generally planar director is pivotally mounted on an inner surface of the other one of the walls and both directors are responsive to the wind for positioning the inlet end toward the wind.

Claims

1. An apparatus for generating electric power from wind comprising:

a base;

a pair of upstanding, generally parallel, spaced apart walls mounted on said base and defining an inlet end and an outlet end for wind;

means for generating electric power mounted on said base and having an input shaft;

a vertical axis cylindrical rotor having a plurality of wind driven vanes, and mounted on said base between said walls, and having an output shaft coupled to rotate said input shaft;

an inner modulator rotatably mounted on said base inside said rotor and selectively movable for controlling wind flow through said rotor; and

an inlet modulator rotatably mounted on said base at said inlet end and selectively movable for controlling wind flow to said rotor.

2. The apparatus according to claim 1 wherein said walls are rotatably mounted on said base for positioning said inlet end toward the wind.

3. The apparatus according to claim 2 including a generally planar director pivotally mounted on an outer surface of one of said walls and responsive to the wind for positioning said inlet end toward the wind.

4. The apparatus according to claim 3 wherein said planar director presents a surface area to the wind sufficient to cause said walls to rotate about said rotor whereby said inlet end faces into the wind.

5. The apparatus according to claim 2 including a generally planar director pivotally mounted on an inner surface of one of said walls and responsive to the wind for positioning said inlet end toward the wind.

6. The apparatus according to claim 5 wherein said planar director presents a surface area to the wind sufficient to cause said walls to rotate about said rotor whereby said inlet end faces into the wind.

7. The apparatus according to claim 2 including a first generally planar director pivotally mounted on an outer surface of one of said walls and responsive to the wind for positioning said inlet end toward the wind and a second generally planar director pivotally mounted on an inner surface of the other one of said walls and responsive to the wind for positioning said inlet end toward the wind.

8. The apparatus according to claim 7 wherein each of said first and second planar director presents a surface area to the wind sufficient to cause said walls to rotate about said rotor whereby said inlet end faces into the wind.

9. The apparatus according to claim 1 wherein said walls are each attached along a bottom edge to an associated edge of a bottom wall.

10. The apparatus according to claim 9 including first magnetic means attached to said rotor and second magnetic means attached to said bottom wall, said first and second magnetic means mutually repelling for supporting said rotor.

11. The apparatus according to claim 1 wherein said inner modulator includes a generally vertically extending, curved planar surface positioned adjacent an inner edge of said vanes and attached by a bracket to an inner modulator shaft rotatably supported on said base and extending through a center of rotation of said rotor.

12. The apparatus according to claim 1 wherein said inlet modulator includes a generally vertically extending, curved planar surface pivotally attached to an inner surface of one of said walls adjacent the inlet end.

13. An apparatus for generating electric power from wind comprising:

a base;

a pair of upstanding, generally parallel, spaced apart walls rotatably mounted on said base and defining an inlet end and an outlet end for wind;

means for generating electric power mounted on said base and having an input shaft;

a vertical axis cylindrical rotor having a plurality of wind driven vanes, and mounted on said base between said walls, and having an output shaft coupled to rotate said input shaft;

an inner modulator rotatably mounted on said base inside said rotor and selectively movable for controlling wind flow through said rotor; and

an inlet modulator rotatably mounted on said base at said inlet end and selectively movable for controlling wind flow to said rotor.

14. The apparatus according to claim 13 including a generally planar director pivotally mounted on an outer surface of one of said walls and responsive to the wind for positioning said inlet end toward the wind.

15. The apparatus according to claim 13 including a generally planar director pivotally mounted on an inner surface of one of said walls and responsive to the wind for positioning said inlet end toward the wind.

16. The apparatus according to claim 13 including a first generally planar director pivotally mounted on an outer surface of one of said walls and responsive to the wind for positioning said inlet end toward the wind and a second generally planar director pivotally mounted on an inner surface of the other one of said walls and responsive to the wind for positioning said inlet end toward the wind, said walls being longer from a center of rotation of said rotor to said inlet end than from the center of rotation to said outlet end.

17. An apparatus for generating electric power from wind comprising:

a base;

a pair of upstanding, generally parallel, spaced apart walls rotatably mounted on said base and defining an inlet end and an outlet end for wind;

means for generating electric power mounted on said base and having an input shaft;

a vertical axis cylindrical rotor having a plurality of wind driven vanes, and mounted on said base between said walls, and having an output shaft coupled to rotate said input shaft;

an inner modulator rotatably mounted on said base inside said rotor and selectively movable for controlling wind flow through said rotor, said inner modulator including a generally vertically extending, curved planar surface positioned adjacent an inner edge of said vanes and attached by a bracket to an inner modulator shaft rotatably supported on said base and extending through a center of rotation of said rotor; and

an inlet modulator rotatably mounted on said base at said inlet end and selectively movable for controlling wind flow to said rotor, said inlet modulator including a generally vertically extending, curved planar surface pivotally attached to an inner surface of one of said walls adjacent the inlet end.

18. The apparatus according to claim 17 including a first generally planar director pivotally mounted on an outer surface of one of said walls and responsive to the wind for positioning said inlet end toward the wind and a second generally planar director pivotally mounted on an inner surface of the other one of said walls and responsive to the wind for positioning said inlet end toward the wind.