Patent ID: 6543726
Filing Date: 2003-04-08
Classification: B64C,F15D

Abstract:
An apparatus for eliminating a cylindrical vortex comprising:motor means for generating a torque; axle means, coupled to said motor means, said axle means comprising a first coupling capable of transferring a first torque in the direction of said torque, and further comprising a second coupling, coaxial to said first coupling, capable of transferring a torque in the opposite direction of said torque; first blade means coupled to said first coupling; and second blade means coupled to said second coupling; wherein upon application of said torque, said first blade means and said second blade means rotate in opposite directions; and further wherein the pitch and rotational speed of said second blade means are such that fluid flow, upon traveling through said first blade means and said second blade means, has substantially no cylindrical vortex flow characteristic.