Horizontal Axis Logarithmic Spiral Fluid Turbine

Abstract

The present invention is a more simplified and efficient design of a turbine. The use of a logarithmic curve pattern for blade design and an aerodynamic profile allows the present invention to not only be versatile in its uses, but also much more efficient at gathering forms of energy for different purposes.

Description

[0001]The current application claims a priority to the U.S. Provisional Patent application Ser. No. 61 / 387,894 filed on Sep. 29, 2010.FIELD OF THE INVENTION[0002]The present invention relates generally to turbine for the generation of electrical energy. More specifically, the present invention takes the shape of a logarithmic spiral with a horizontal axis for efficient rotation. The present invention relates to fluid rotors, also called turbines, and pertains particularly to a rotor for flowing water, wind and the like.PRIOR ART[0003]In the World International Patent Organization Application 2010043887A2, the process of attaining vortical flow is achieved using two components involving a turbine mounted to a duct with guide vanes to channel the fluid and change its direction and speed before contact with the said turbine. Thus, the uniqueness and efficiency of this design lies in the presence of the two components together. This turbine works only if facing the fluid current directi...

AI Technical Summary

Benefits of technology

[0014]An objective of the present invention is to provide an improved fluid turbine that is effective in generating more power in a given radius, fluid type, and velocity while at the same time is simple, safe, and inexpensive to construct and maintain.

[0015]In accordance with the primary aspect of the horizontal axis logarithmic spiral fluid turbine, otherwise known as a logarithmic turbine, includes a plurality of blades mounted symmetrically and curve along the axis of rotation in a logarithmic spiral shape. Each blade consists of a logarithmic curve pattern with a certain curve radius and placed around a rotary axis. The surface of the blade is perpendicular to the axis from each point on the spiral. Also, the surface of the blade may be concave at the side of the blade facing the rotation direction in order to give it an aerodynamic shape and increase lift.

[0016]One objective of the present invention is to guide the moving fluid around the logarithmic turbine's rotary axle and between the blades in a manner to collect the fluid kinetic energy more efficiently than in prior arts.

Problems solved by technology

The rising cost and decreasing supply of fossil fuels creates a considerable need in harnessing renewable energy such as flowing wind and water more efficiently.

For example, water mills that are currently used to generate electric power require a considerable quantity of strong water current to operate efficiently resulting in a need to build costly damns and structures to control the water current flow direction and speed.

Presently, wind turbines not only compromise a significant amount of their torque to acquire high speed, but also require a relatively big space and in some cases, they may even be hazardous.

Also, they are known to be expensive to construct, maintain, and engineer.

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