A floating wind power generation device comprises: a main buoyant body which has buoyancy and a space portion provided in the center; an auxiliary buoyant body which has buoyancy and is connected to the main buoyancy and is connected to the main buoyant body by being inserted into the space portion of the main buoyant body; a plurality of wind power generators which are vertically provided on top of the auxiliary buoyant body and generate power; a location control means which is connected to the main buoyant body and controls the location of the main buoyant body; an oscillation inhibiting means which is connected to the main buoyant body and enables the main buoyant body to maintain an equilibrium state by absorbing the sea waves; and a dock connection unit which is connected to the main buoyant body and enables a ship to lie at anchor on the sea.

A width-adjustable packaging bag shaper, a bag maker, a packaging machine, and a method. The packaging machine including the bag maker, a traction device and a heat sealing device are respectively arranged above the bag maker, and a width adjustment device adjusts the distances between different sub bottom plates in a front bottom plate and a rear bottom plate by using a leadscrew and slide block mechanism, and then adjusts the width of a bottom plate. The leadscrew and slide block mechanism is used as the width adjustment device of the automatic width-adjustable noodle packaging bag shaper system, and four bottom plates are respectively fixed to the width adjustment device, so the leadscrew and slide block mechanism in operation is accurate in range of adjustment, is suitable for various widths of packaging bags, and has very important significance for the three-dimensional shaping effect of the packaging bags.

A buoy (10) comprising a central column (12), an outer frame (14) attached to the central column with buoyancy which may be provided by the outer frame and/or by attached buoyancy units (16). The central column is negatively buoyant and is normally open at one end to allow water to flow in, and create an oscillating water column caused by waves. This water column dampens the effect of wave or other forces on the buoy, thus providing a more stable foundation for a wind powered generator. A further generator may be provided to extract energy from the oscillating water column. The buoy is normally attached to an anchor by one or more tension leg tethers which maintains the buoyancy below the surface of the water which has also be found to increase stability. The anchor may be a modular gravity base anchor.

A buoyant hydrodynamic pump is disclosed that can float on a surface of a body of water over which waves tend to pass. The pump incorporates an open-bottomed tube with a constriction. The tube partially encloses a substantial volume of water with which the tube's constriction interacts, creating and/or amplifying oscillations therein in response to wave action. Wave-driven oscillations result in periodic upward ejections of portions of the water inside the tube that can be collected in a reservoir that is at least partially positioned above the mean water level of the body of water, or pressurized by compressed air or gas, or both. Water within such a reservoir may return to the body of water via a turbine, thereby generating electrical power (making the device a wave engine), or else the device's pumping action can be used for other purposes such as water circulation, propulsion, or cloud seeding.

An apparatus attached to the underside of a barge, a boat, a ship, a buoyant marine structure, and/or the like may include a plurality of conduits. A configuration of the plurality of conduits may increase the velocity of water moving, for example, at a high velocity due to the buoyant force (upward force) under the barge, the boat, the ship, the buoyant marine structure, and/or the like. The water, due to the increased velocity, may cause a plurality of hydroelectric generators to produce a vast amount of electricity and/or power.

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.

A buoyant hydrodynamic pump is disclosed that can float on a surface of a body of water over which waves tend to pass. The pump incorporates an open-bottomed tube with a constriction. The tube partially encloses a substantial volume of water with which the tube's constriction interacts, creating and/or amplifying oscillations therein in response to wave action. Wave-driven oscillations result in periodic upward ejections of portions of the water inside the tube that can be collected in a reservoir that is at least partially positioned above the mean water level of the body of water, or pressurized by compressed air or gas, or both. Water within such a reservoir may return to the body of water via a turbine, thereby generating electrical power (making the device a wave engine), or else the device's pumping action can be used for other purposes such as water circulation, propulsion, or cloud seeding.

A wave electricity generator system includes a water craft, a reinforcement beam mounted to a bottom of the watercraft, a power generating unit and a leverage assembly. The leverage assembly includes a connection unit disposed on the watercraft, and a lever 62 connected to the power generating unit and the connection unit. The connection unit includes a rope retaining seat, a rope and a protective pad. The rope retaining seat is disposed above the watercraft and connected to the lever. The rope is disposed around the watercraft, threads through the reinforcement beam, and is connected to the rope retaining seat. The protective pad is disposed between the reinforcement beam and the rope.

A variable-head hydroelectric power plant having an upstream intake works adapted to intercept at least partially the water coming from a source, a pipeline connected to the upstream intake works to receive and channel therein, at least partially, the water intercepted by the upstream intake works is disclosed. The power plant further includes a floating platform, adapted to be arranged and to float on the surface of a basin, and a hydraulic turbine arranged on the floating platform and connected to the pipeline to receive the water coming from the pipeline.

Increased energy harvesting is realized using a nonlinear buoy geometry for reactive power generation. By exploiting the nonlinear dynamic coupling between the buoy geometry and the potential wideband frequency spectrum of incoming waves in the controller/buoy design, increased power can be captured in comparison to conventional wave energy converter designs. In particular, the reactive power and energy storage system requirements are inherently embedded in the nonlinear buoy geometry, therefore requiring only simple rate-feedback control.