IP Library Granted Patent US 9,062,654
Granted Patent B2
US 9,062,654 · App. 13/430,243 · Granted Jun 23, 2015

Modular micro wind turbine

Inventor: Robert D. Yost (Harvest, AL)
Assignee: American Wind Technologies, Inc.
F03D1/04F05B2220/00F05B2220/50F05B2240/40F05B2250/82Y02B10/30Y02B10/70Y02E10/725
View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 9,062,654
App. No.
13/430,243
Granted
Jun 23, 2015
Kind
B2
Abstract

A modular wind turbine has been developed that includes a turbine housing that contains a circular stabilization ring. The turbine also includes a central hub with multiple airfoil blades that are attached to the interior of the circular stabilization ring. A drive shaft extends from the central hub that turns an electric generator with multiple magnets and coils that generate electricity upon rotation of the of the drive shaft.

Claims (28)

1. A modular wind turbine, comprising:

a turbine housing that contains a circular air compression bore with a decreasing circumference that increases the velocity of air flow by funneling the air flow through the bore;

multiple airfoil blades with an external end of each blade attached to the interior of a circular stabilization ring that;

a central hub connected to the interior end of each blade, where the airfoil blades rotate around the central hub;

a drive shaft that extends from the central hub such that it rotates as the central hub turns;

an electric generator that is powered by the drive shaft, comprising a series of alternating stators and rotors configured along said drive shaft, said series of rotors comprising an initial rotor, a first main rotor, and a second main rotor, and said series of stators comprising a first stator between said initial rotor and first main rotor, and a second stator between said first main rotor and second main rotor, and wherein said first and second main rotors comprise a plurality of axially aligned opposing, magnet pockets on each side of the first and second main rotors, each of the opposing magnet pockets containing an axially aligned magnet, and wherein the axially aligned magnets in the magnet pockets are oriented such that opposing magnetic poles face each other, wherein the two axially aligned magnets of the first main rotor and the two axially aligned magnets of the second main rotor create a magnetic flux in the second stator when rotated about the drive shaft.

2. The turbine of claim 1 , further comprising a nose cone located on the central hub that directs airflow to the airfoil blades.

3. The turbine of claim 1 , where the each airfoil blade is shaped with a rotational twist that is oriented downward away from the direction of the airflow along the rear edge of the airfoil blade so that the airfoil blade produces a high pressure surface facing the airflow and an opposing low pressure surface facing away from the airflow.

4. The turbine of claim 1 , where the high pressure surface comprises a concave curve.

5. The turbine of claim 1 , where the low pressure surface comprises a convex curve.

6. The turbine of claim 1 , where the external blade rotational diameter is approximately 25 mm.

7. The turbine of claim 1 , where the external blade rotational diameter is approximately 610 mm.

8. The turbine of claim 1 , where the external blade rotational diameter is within the range of between 25 mm and 610 mm.

9. The turbine of claim 1 , where the turbine housing is squared shaped.

10. The turbine of claim 1 , where the turbine housing is hexagonally shaped.

11. A bank of modular wind turbines, comprising:

multiple squared shaped turbine housings that each contain a circular air compression bore with a decreasing circumference that increases the velocity of air flow by funneling the air flow through the bore, where the turbine housings a connected together to form a bank of housings;

multiple airfoil blades with an external end of each blade attached to the interior of the circular air compression bores;

a central hub connected to the interior end of each blade, where the airfoil blades rotate around the central hub;

a drive shaft that extends from the central huh such that it rotates as the central hub turns; and

an electric generator that is powered by the drive shaft, comprising

a series of alternating stators and rotors configured along said drive shaft, said series of rotors comprising an initial rotor, a first main rotor, and a second main rotor, said series of stators comprising a first stator between said initial rotor and first main rotor, and a second stator between said first main rotor and second main rotor, and wherein said first and second main rotors comprise a plurality of axially aligned opposing magnet pockets on each side of the first and second main rotors, each of the opposing magnet pockets containing an axially aligned magnet, and wherein the axially aligned magnets in the magnet pockets are oriented such that opposing magnetic poles face each other, wherein the two axially aligned magnets of the first main rotor and the two axially aligned magnets of the second main rotor create a magnetic flux in the second stator when rotated about the drive shaft.

12. A bank of modular wind turbines, comprising:

multiple hexagonally shaped turbine housings that each contain a circular air compression bore with a decreasing circumference that increases the velocity of air flow by funneling the air flow through the bore, where the turbine housings a connected together to form a bank of housings;

multiple airfoil blades with an external end of each blade attached to the interior of the circular air compression bores;

a central hub connected to the interior end of each blade, where the airfoil blades rotate around the central hub;

a drive shaft that extends from the central hub such that it rotates as the central hub turns; and

an electric generator that is powered by the drive shaft, comprising a series of alternating stators and rotors configured along said drive shaft, said series of rotors comprising an initial rotor, a first main rotor, and a second main rotor, and said series of stators comprising a first stator between said initial rotor and first main rotor, and a second stator between said first main rotor and second main rotor, and wherein said first and second main rotors comprise a plurality of axially aligned opposing magnet pockets on each side of the first and second main rotors, each of the opposing magnet pockets containing an axially aligned magnet, and wherein the axially aligned magnets in the magnet pockets are oriented such that opposing magnetic poles face each other, wherein the two axially aligned magnets of the first main rotor and the two axially aligned magnets of the second main rotor create a magnetic flux in the second stator when rotated about the drive shaft.

Assignments (7)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 20, 2025
From: STAVE OAK LENDING, LLC
To: SUJEN INTERNATIONAL, LLC,
Reel/Frame 071167/0102 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 15, 2025
From: STAVE OAK LENDING, LLC
To: SUJEN INTERNATIONAL, LLC
Reel/Frame 071278/0001 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 14, 2024
From: SAVA WIND, INC. F/K/A AMERICAN WIND, INC.
To: STAVE OAK LENDING, LLC
Reel/Frame 067731/0165 →
SECURITY INTEREST Recorded Mar 25, 2024
From: AMERICAN WIND, INC.
To: STAVE OAK LENDING, LLC
Reel/Frame 066890/0589 →
SECURITY INTEREST Recorded Mar 4, 2024
From: AMERICAN WIND, INC. D/B/A SAVA WIND, INC.
To: STAVE OAK LENDING, LLC
Reel/Frame 066877/0583 →
CHANGE OF NAME Recorded Jun 8, 2015
From: AMERICAN WIND TECHNOLOGIES, INC.
To: AMERICAN WIND, INC.
Reel/Frame 035848/0928 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 19, 2012
From: YOST, ROBERT D.
To: AMERICAN WIND TECHNOLOGIES, INC.
Reel/Frame 028072/0884 →
Continuity (1)
Related Publication 20130249217A1 · Sep 26, 2013