Patent ID: 7540249

Claim:
An acceleration system for a link belt-mounted ship comprising: water wheels mounted along lower ends of opposite lateral surfaces of a hull of the ship; rotating shafts each penetrating through the center of the associated two water wheels; link belts, each surrounding a group of the water wheels and formed with hook-shaped blades protruding outward from an outer peripheral surface of the link belt and spaced apart from one another by a regular distance; ball bearing units mounted, respectively, external to the water wheels so that the rotating shafts are inserted through ball bearings thereof; square pipes onto which lower ends of the ball bearing units are bolted; hinges bolted at their bottom surfaces onto one end of the respective square pipes, each hinge having a hinge rod bolted and fixed to a bottom surface of the hull, and a hinge shaft located under the hinge rod; and hydraulic cylinders fastened on the square pipes at opposite sides of the hinges, each hydraulic cylinder having a pair of upper and lower brackets, pins inserted in the respective brackets, and a cylinder located between the upper and lower brackets, so that the hydraulic cylinder is fixed at an upper end thereof to the bottom surface of the hull by way of the upper bracket and the associated pin, and at a lower end thereof to the square pipe by way of the lower bracket and the associated pin.