Patent ID: 7011501

Claim:
System ( 1 ) for generating energy, primarily with the use of sea currents, comprising a rotation body ( 4 ) having a front inlet side ( 2 ) and a rear outlet side ( 3 ), and at least one transfer member ( 6 ) between the inlet side ( 2 ) and a generator ( 5 ), wherein said rotation body has a conical and/or concave section extending in a direction toward the outlet side as well as a conically and/or bulb shaped tapering portion ( 8 , 9 ) extending from a substantially cylindrical waist portion ( 7 ) towards the inlet side, wherein the waist portion is provided with turbine blades ( 10 ) only along its circumference that are adapted to maintain the rotation of the rotation body, a free front end of which is secured to the transfer member ( 6 ) to transfer a rotational movement to the generator ( 5 ), and wherein an inner surface of an outer wall ( 17 ) of the rotation body ( 4 ) exhibits blades ( 18 ) along its circumference for the purpose of eliminating friction generated by a fluid ( 19 ) inside the rotation body.