Patent ID: 6155892
Filing Date: 2000-12-05
Classification: F03B,F03D,F05B,Y02E,Y10S

Abstract:
A system for providing propulsion of a marine vessel, comprising:a marine vessel; anda cylindrical helical turbine capable of unidirectional rotation under multidirectional wave oscillations and mounted to a side of said marine vessel and connected to a propeller, said helical turbine comprising:a rotatable shaft mounted to said marine vessel to extend parallel to the side of said vessel;at least one turbine blade support member fixedly mounted to said rotatable shaft for rotation therewith in a plane perpendicular to said shaft; anda plurality of turbine blades having a fixed cylindrical helical configuration mounted to said turbine blade support member for rotation about an axis of said rotatable shaft, each blade having an airfoil shape having a leading edge and a trailing edge and an airfoil profile lying in a plane perpendicular to said shaft, each of said blades fixedly mounted to said blade support member to be radially spaced from said rotatable shaft for rotation in the plane perpendicular to said shaft in the direction of said leading edge.