Patent ID: 8568179

Claim:
A multidirectional propulsion apparatus for a ship in water, the water having a surface, comprising: a motor and a drive shaft driven by the motor; a drive system including a hypocycloid transformer, the hypocycloid transformer including a pair of directrix crown wheels, a pair of satellite gears which are integral with respective bolt discs, and a pair of elastic connecting rods, each bolt disc having a bolt fixed thereon such that the bolts are located at 180 degrees from each other, each bolt describing a reciprocating path in a straight line of constant length and equal to a pitch diameter of the respective directrix crown wheel, wherein the drive shaft drives the drive system by transmitting rotation to the satellite gears which roll inside the respective directrix crown wheel; a fish-tail propulsion system for submersion beneath the water surface, the fish-tail propulsion system having concentric shafts, swing frames each formed by a body and arms that have attached blades for rotating about respective axes, and stops, the swing frames being connected to the respective shafts through an elastic connection, wherein the concentric shafts move the swing frames in oscillation between the stops and provide thrust force for the ship; and a multidirectional connection system having clutches, the multidirectional connection system connecting the drive system to the fish-tail propulsion system through the clutches, the clutches each having a driving disc and a sliding disc; wherein the bolts of the hypocycloid transformer are connected to the elastic connecting rods of the drive system which are connected to the driving discs of the multidirectional connection system so as to transmit reciprocating movements to the driving discs, the driving discs moving the respective concentric shafts of the fish-tail propulsion system via the sliding discs with both of the concentric shafts performing synchronized rotating-oscillating movements and in opposite directions and never completing complete revolutions, and wherein orientation of propulsion force of the blades of the fish-tail propulsion system can be changed to any horizontal direction and course between 0 and 360 degrees by using the clutches on the concentric shafts thereby changing the direction and course of the propulsion force applied to the ship.