An energy harnessing device for harnessing wave energy that results in pitch, sway, yaw, surge, roll, and heave movement, wherein the device effectively converts multiaxial translational and rotational motion to unidirectional rotational motion for power transmission.

A wave-power system configured to produce electric power is provided. The wave-power system may comprise a floating body structure, a set of blades attached to the floating body structure, a weight assembly, a bidirectional to unidirectional shaft assembly and/or a power unit. The weight assembly may comprise a plurality of weights which may rotate around a first axis of rotation as a result of floating movements of the floating body structure. Rotation of the plurality of weights may cause an input shaft of the bidirectional to unidirectional shaft assembly to rotate. An output shaft of the bidirectional to unidirectional shaft assembly may rotate in a first direction, regardless of a direction of rotation of the input shaft. Rotation of the output shaft causes the power unit to produce the electric power.

A vertical axis wind turbine includes two or more cells arranged one above the other along a vertical machine axis, wherein each of the cells includes a plurality of vertical blades which are arranged within the cell distributed on a concentric circle about the machine axis and which are connected so as to be able to move together on this circle and which are rotationally fixed with a main shaft, and wherein the blades in the cell are each individually mounted so as to be able to rotate about a vertical axis of rotation which in particular runs internally through them.

This invention discloses a method and a device for the capture of wave power, exploiting the maximum potential energy of each wave, based on obtaining the maximum imbalance possible between the Thrust Force and the Weight acting upon the capture elements on the passage of each wave, slowing and releasing them both at their high points and at their low points by means of the use of blocking systems, maximizing the submerged and emerged volumes of the next movement, likewise the travel during which the capture elements are accelerated due to the exploitation of their kinetic energy and their release in the transmission of efforts at the moments when the points of equilibrium between the rising and falling maximums are reached, thus generating an increase in the potential energy captured.

The invention relates to a device for recovering wave energy, the device including a drum which is adapted to rotate around its centre axis and inside which an electric generator is adapted, arranged to be rotated by the rotating motion of said drum. In order for the device to recover energy better than prior art devices, the device includes at least one wing adapted on the outside of the drum, the wing being arranged to turn in such a way that it may be turned from a first position to a second position whereby, as the wing is in its first position, the motion of water in a first direction of the drum centre axis is arranged to rotate the drum in a first direction, and as the wing is in its second position, the motion of water in a second direction of the drum centre axis is also arranged to rotate the drum in said first direction, and the turning of the wing is arranged to take place under control of a pressure sensor.

A device is provided that converts random movement of extrinsic oscillation from an ocean wave into purposeful movement, such as torque or other motion that can be used to generate electricity. This device may include but is not limited to two major components: 1) a collection unit and 2) a transmission unit. The collection unit represents the interactive part of the device that interfaces with an extrinsic force which provides the randomized kinetic motion that is translated by an actuating arm connected with the transmission unit into pivoting bidirectional movement along at least two directional axes, and may include a series of connected pivoting arms of different lengths. The transmission unit is the portion of the device that converts the pivoting directional movement of the actuating arm or arms into rotation of a drive shaft that is then converted into purposeful torque, and thus, electricity.

A water turbine device is provided which can move a water turbine from a use position to a nonuse position with a light force, and which has a simplified structure. An intermediate portion of a suspension support rod for suspending a water turbine immersed in a flowing water in a waterway is pivotally attached to a platform provided on the waterway with a horizontal shaft, and a power generation device as a balance weight is provided at the free end of the suspension support rod, and the water turbine is rotatable around the horizontal shaft between the use position where the water turbine is immersed in a flowing water and the nonuse position above the flowing water.

A hydraulic power generating apparatus which can be easily disposed in a water channel, such as a waterway or a water conducting pipe. The hydraulic power generating apparatus comprises a horizontal rotor supporting housing (4) having a rotor, a holding body (5) erected on an upper surface of the rotor supporting housing (4), a support ring (2) in which the rotor supporting housing (4) is fixed, and a power generator (11). The rotor supporting housing (4) is integrally fixed within the support ring (2) by the holding body (5). The power generator (11) is disposed on the upper part of the holding body (5) protruding from the support ring (2), and the support ring (2) is formed with attachment portions (2A, 2B) for fixing the rotor supporting housing (4) in a water channel.

The present invention relates to an autonomous power generating device using gravity and buoyancy, an autonomous power generating device using a structure, and a marine boundary light using same. To this end, the present invention forms a rotating module having at least one rotating body provided on a rotating shaft and a power transmitting gear provided on one side end of the rotating shaft, a rope is hung to touch the rotating body of the rotating module and moves upward and downward, a buoyant body is provided on one side end of the rope, a tensioning body is provided on the other side end to vary the vertical force with the buoyant body, and the rotating force of the power transmitting gear of the rotating module is sequentially transmitted to a drive gear and a generator. Therefore, a fluctuation in water level can effectively be converted into an up-and-down vertical movement of the buoyant body.

A novel universal propeller has a gearwheel arranged on each rotor blade that is directly operatively connected to a reference gearwheel of a timing gear. The timing gear is operatively connected to a hub gear. The hub gear senses and processes an angular velocity ?.sub.n of a rotation of the hub. The reference gearwheel and the gearwheels of the rotor blades of the timing gear are configured that the ratio of an angular velocity ?.sub.r of the reference gearwheel to the angular velocity ?.sub.n of the rotational movement of the hub is as follows: ?.sub.r/?.sub.n=1?(?)*(S.sub.rot/S.sub.r), where S.sub.rot is a size of the gearwheels and S.sub.r is a size of the reference gearwheel. The present invention is particularly suitable for use in a wind power installation, hydropower installation or an engine of a ship or an aircraft.