Patent ID: 8222761

Claim:
A helical turbine power generation system, the system comprising: a helical turbine rotatably provided in a frame and configured to continuously generate rotational force under unidirectional or multidirectional fluid flow; a step-up gear rotatably connected to the helical turbine and configured to increase a rotational velocity of the helical turbine up to a level required for generating electricity; a fluid coupling rotatably connected to the step-up gear and configured to prevent the rotational velocity increased by the step-up gear and delivered by the fluid coupling from increasing above a required velocity at a high rate of the fluid flow; a synchronous generator rotatably connected to the fluid coupling and configured to generate electricity by using the rotational velocity transferred from the fluid coupling, wherein the fluid coupling is disposed between the step-up gear and the synchronous generator; a fixing member incorporated into a rectangular-shaped frame, in which the helical turbine is fixed; a protruding member having triangular frames on both sides in contact with the fluid flow; and a plurality of slits parallel to a direction of the fluid flow, which are formed on both protruding sloping sides of the protruding member, wherein floating matter included in the fluid is filtered out so that the floating matter does not pass through the plurality of slits with the fluid and wherein protruding member prevents the floating matter from disturbing fluid flow through the slits.