A hydro-kinetic power generation system is disclosed. The system includes a structure to be positioned in shallow or deep waterways, such as canals and rivers. The structure may be modular, such that the structure may be composed of one or more structural units that are each substantially the same. In various embodiments, each unit includes one or more curved walls for accelerating water through the unit, or through the structure as a whole. In one embodiment, the accelerator walls are curved for optimizing water flow through the structure without generating undue head loss. In certain embodiments, the units may be configured such that the accelerator walls are positioned on opposite sides of the structure, or the accelerator walls may be adjacently positioned. Coupled to the structure are turbines and gear box systems for harnessing energy from the moving water and converting the energy into electric power.

A vertical twin rotor water turbine apparatus and method for extracting energy from a flow of water is described herein. The described apparatus delivers favourable performance by virtue the operation of a novel configuration of a plurality of central cores with at least one blade member extending from each core and flow directors to increase the effectiveness and efficiency of said device.

A hydrodynamic power generation assembly and method of use therefor for generating electrical power from the combination of kinetic energy, hydrostatic energy, and turbulent energy of water. The power generation assembly comprises a water accelerator assembly comprising a support structure which is at least partially buoyant and a baffle panel member (or an array of baffle panel members) having an opening, inter-panel spacing, or flow passageway around the baffle panel(s). A hydropower converter is supported from, by, or on the support structure and is operatively coupled to a generator. The hydropower converter is positioned behind baffle assembly. Water flowing through or around the baffle assembly has an increased velocity relative the ambient current and therefore is capable of generating more power relative to the ambient water where power generation assembly is deployed. Particular types of hydropower converters suitable for use with the invention are turbines and water wheels.

A pig is provided for use in pipelines filled with a flowing fluid. The pig includes a pig body, a drive element which may be a propeller disposed on said pig body which can be rotated by the flowing fluid. The pig also includes a generator unit connected to the drive element through which a movement of the drive element may be converted into electrical energy, and a locking means through which the position and/or the speed of the pig inside the pipeline may be fixed. The generator unit is designed to operate as a motor through which the drive element may be made to rotate and which is designed to set a speed for the pig that is different from the flow velocity of the flowing fluid inside the pipeline and that the pig is provided with an energy storage unit for electrical energy, which is connected to the generator unit.

The present disclosure relates to a device and a method for swinging power generation and vibration suppression by using arc-shaped wing plates with rough surfaces. The device consists of two parts, namely, a rotary swinging system and a collector system. The rotary swinging system includes a collector riser, steering bearings, nanometer material arc-shaped power generation wing plates, and flexible tail plates. The collector system includes telescopic power generation cylinders, a waterproof electric slip ring, and a waterproof power transmission line. The suppression of energy-consumption-free vortex-induced vibration is realized under the combined action that the nanometer material arc-shaped power generation wing plates divide a flowing space and adjust a flow direction, the nanometer material arc-shaped power generation wing plates drive the flexible tail plates to swing to destroy a tail vortex street, and hemispherical bulges and trumpet-shaped deflector holes disturb a boundary layer around flow.

A hydrodynamic power generation assembly and method of use therefor for generating electrical power from the combination of kinetic energy, hydrostatic energy, and turbulent energy of water. The power generation assembly comprises a water accelerator assembly comprising a support structure which is at least partially buoyant and a baffle panel member (or an array of baffle panel members) having an opening, inter-panel spacing, or flow passageway around the baffle panel(s). A hydropower converter is supported from, by, or on the support structure and is operatively coupled to a generator. The hydropower converter is positioned behind baffle assembly. Water flowing through or around the baffle assembly has an increased velocity relative the ambient current and therefore is capable of generating more power relative to the ambient water where power generation assembly is deployed. Particular types of hydropower converters suitable for use with the invention are turbines and water wheels.

An underwater device for water power conversion includes multiple cups, each cup constituted by a bottomless cup member and a bottom plate fitted pivotally in a freely rotatable manner, wherein the bottomless cup member blocks flowing water in a standing state and makes flowing water pass through in a lying down state, generating flowing water resistance difference between the two states. The cups are installed in a continuous member of a waterwheel submerged in flowing water so that the cup stands in a forward advance path and lies down in a reverse advance path. A water blocking plate is also provided in the reverse advance path so as to utilize centrifugal force to turn the bottomless cup member from the lying down state to the standing state, thereby making the cup turn or circulate continuously in flowing water.

In a rotating machine having a fluidic rotor, the rotor comprises at least one blade mounted on an arm rotating about a rotor shaft forming a main axis of the rotor, the rotor being kept by a supporting structure in an orientation such that said axis is substantially perpendicular to the direction of flow of the fluid, the blade being mounted so as to pivot about an axis of rotation of the blade parallel to the main axis. The machine comprises means for generating a relative oscillation movement of the blade with respect to the arm at the axis of rotation of the blade, in order in this way to vary the inclination of the blade during the rotation of the rotor. Said means comprise, at the arm end, a mechanism comprising a first rotating element (A; B) known as the drive element and a second rotating element (B; A) known as the driven element, the elements being mounted on mutually parallel axes of rotation and separated by an inter-axis distance, the orientation of the drive element being controlled depending on the orientation of the rotor shaft while the orientation of the driven element determines the orientation of the blade, one of the rotating elements comprising a finger (D) spaced apart from its axis of rotation and the other rotating element comprising a groove (C) which receives the finger and in which the finger can slide. Application notably to wind turbines, to marine turbines and to nautical and aircraft propellers.

A turbine which uses fluid pressure to turn a shaft in a manner that does not allow for cavitation to be created.

A hydrodynamic power generation assembly and method of use therefor for generating electrical power from the combination of kinetic energy, hydrostatic energy, and turbulent energy of water. The power generation assembly comprises a water accelerator assembly comprising a support structure which is at least partially buoyant and a baffle panel member (or an array of baffle panel members) having an opening, inter-panel spacing, or flow passageway around the baffle panel(s). A hydropower converter is supported from, by, or on the support structure and is operatively coupled to a generator. The hydropower converter is positioned behind baffle assembly. Water flowing through or around the baffle assembly has an increased velocity relative the ambient current and therefore is capable of generating more power relative to the ambient water where power generation assembly is deployed. Particular types of hydropower converters suitable for use with the invention are turbines and water wheels.