Peacock Windmill

OBJECTS OF THE INVENTION

An object of the present invention is to provide a windmill that works on the principle of drag. Another object of the present invention is to provide a windmill that can be used as a decorative article.Yet another object of the present invention is to provide a windmill where lift force is generated on the blades rotating in a direction opposite to the direction of flow of wind current.

SUMMARY OF THE INVENTION

Accordingly, the present invention provides a windmill comprising: a shaft; a plurality of blades coupled to external circumferential portion of the shaft and being configured to rotate the said shaft; an electrical energy producing means connected to the said shaft for generating electrical energy upon rotation of the same; characterized in that: the shaft is oriented horizontally with respect to the ground and rotates about its horizontal axis; each of the plurality of blades provides a first and a second capture areas during its rotation, wherein the first capture area is substantially larger than the second capture area and is made available during rotation in a direction of flow of wind current for capturing drag force of wind current. The second capture area captures lift force of wind current generated due to the pressure difference produced across the surfaces of the airfoil. The said lift force is generated in a direction perpendicularly sideways to the direction of rotation of the blades and is proportional to a combination of velocity of wind current and velocity of airfoil i.e. lift force is generated on the blades rotating in a direction opposite to the direction of flow of wind current.

Pavegn System