A platform for exploiting the energy of waves operating in a marine environment and floating on the sea is disclosed. This comprises a submerged portion existing below a sea surface, an emerged portion existing above the sea surface, and a partially submerged wave power transfer mechanism portion including the sea surface and coupling the submerged portion and the emerged portion.

An energy production device including a frame, a body, first and second aligned input shafts projecting from two opposite faces of the body, and a third input shaft aligned with an output shaft. The direction of the first and second input shafts is perpendicular to the direction of the third input shaft and of the output shaft. A mechanical connection is provided at the proximal part of each of the shafts which is within the body. The mechanical connection operates with a transmission system within the body so that any rotation movement on any of the input shafts is converted into a unidirectional rotation movement on the output shaft. A distal end of the third input shaft is fixed to the frame. A bearing is fixed on the frame, into which the distal end of the output shaft is freewheeling. A first pendulum is mounted on a bearing at the distal end of the first input shaft to pivot around the first input shaft and a second pendulum mounted on a bearing at the distal end of the second input shaft to pivot around the second input shaft.

A module for generating electricity from waves in a body of water is disclosed. The module comprises: a housing operable to float in the body of water; a tube formed into a circle integrated within the housing; a magnet element operable to move within the tube; and an electrically conductive coil surrounding substantially all of the tube. The housing is operable to be angularly displaced by waves within the body of water and the angular displacement of the housing is operable to cause movement of the magnet element within the tube surrounded by the coil. The movement of the magnet element through the tube surrounded by the coil generates a voltage on the coil through electromagnetic induction. The voltage on the coil can be rectified and subsequently stored, transmitted or utilized. In some implementations, a plurality of modules may be integrated together to form an array.

The invention provides a compound-pendulum up-conversion wave energy harvesting apparatus, comprising a shell floating on the water surface and swinging with fluctuation of waves, a compound-pendulum mechanism rotatably arranged in the shell and rotating with its swinging, a driving gear rotatably arranged in the shell and rotating synchronously with the compound-pendulum mechanism, an electromagnetic power generation mechanism arranged in the shell and configured to be meshed with the driving gear for transmission to generate electricity through electromagnetic induction, and a piezoelectric power generation mechanism arranged in the shell and configured to be deformed during its rotation to generate electricity through piezoelectric effect. When the shell swings un-directionally with fluctuation of the waves, the compound-pendulum mechanism makes un-directional rotation that adapts to the dynamic changes of water surface wave energy. The electromagnetic power generation mechanism and the piezoelectric power generation mechanism convert energy through two different electromechanical coupling transduction mechanisms.

A system for generating electrical energy from the wave motion of the sea is provided with electrical-energy generating means for exploiting the wave motion of the sea in order to generate electrical energy. A floating body is provided with equipment designed to regulate the frequency of the resonance peak of the system.

An ocean energy collection device is provided. The device includes a first friction assembly, a second friction assembly, and a gravity center adjustment assembly disposed in sequence from outside to inside, and a control and energy storage assembly arranged on the gravity center adjustment assembly. The first friction assembly includes a spherical housing, a first electrode layer, and a first friction layer which are disposed in sequence from outside to inside. The second friction assembly includes a tumbler-shaped shell, a second electrode layer, and a second friction layer which are disposed in sequence from inside to outside. The gravity center adjustment assembly is fixed in the tumbler-shaped shell. The first friction assembly and the second friction assembly can realize electrification by friction. The first electrode layer, the second electrode layer, and the gravity center adjustment assembly are connected with the control and energy storage assembly.

An active resonance C-type buoyant flap wave energy converter includes a rigid frame, a flap, a mass center adjustment assembly and a power generation assembly. The rigid frame is connected to a marine facility, and includes a main body and a support shaft provided at a bottom thereof. The flap is swingingly arranged on the support shaft. The flap is located under water surface, and swings back and forth around the support shaft under an action of a wave. The mass center adjustment assembly is configured to adjust a mass center of the flap to make a natural period of the flap same as a wave period, so as to achieve a resonance between the flap and the wave. The power generation assembly is arranged on the support shaft and is located in the flap.

An energy capture, storage, and conversion device, including a housing, a rotor rotatably arranged in the housing, a stator fixedly secured to the housing and concentrically arranged around the rotor, a spring arranged in the housing and connected to the rotor, and an oscillating weight assembly operatively arranged in the housing to wind the spring.

An example damp can include a first post, a first clamping element rotatably oupled to the first post, a second post separate from the first post, a second clamping lement rotatably coupled to the second post, and a biasing device that couples the first lamping element to the second damping element.

An example damp can include a first post, a first clamping element rotatably coupled to the first post, a second post separate from the first post, a second clamping element rotatably coupled to the second post, and a biasing device that couples the first lamping element to the second damping element.