A flush valve has a valve body having a flushing tube, a power generating set, and a solenoid valve assembly. The power generating set is disposed within the flushing tube and has a turbine capable of rotating, an induction coil, and a magnet inserted through the induction coil and capable of simultaneously rotating with the water turbine. The solenoid valve assembly has an assembling mount, a solenoid valve assembled to the assembling mount, and a power supply electrically connected to both the induction coil and the solenoid valve. A first reserving space is formed between the assembling mount and a relief assembly. A second reserving space is formed between the solenoid valve and the assembling mount and communicates with the first reserving space. The solenoid valve optionally prevents the first reserving space and the second reserving space from communicating with each other.

A facility for generating electricity, including a water source and a plurality of penstocks adapted for selective flow communication with the water source for delivering water from the water source to a turbine electricity generator. An electricity distribution system is provided having a first component adapted to deliver electricity generated by the turbine electricity generator to an electric grid and an alternative second component adapted to use the electricity to power an air compressor. A compressed air storage reservoir is provided for storing air compressed by the air compressor, including an outlet for selectively delivering the compressed air to the plurality of penstocks according to a predetermined sequence for providing energy to the water contained in the penstock to propel the water from the penstock to the turbine.

An adapter element for a solenoid valve assembly in an irrigation system includes an integral water turbine generator including an impeller positioned in an outlet flow path of a solenoid assembly thereof such that the impeller rotates when water flows to generate electricity.

An adapter element for a solenoid valve assembly in an irrigation system includes an integral water turbine generator including an impeller positioned in an outlet flow path of a solenoid assembly thereof such that the impeller rotates when water flows to generate electricity.

The present invention provides a booster apparatus (10) for entraining gas in a flowing second fluid. The booster apparatus comprises a booster housing (116) for receiving a fluid. The booster apparatus has at least one inlet (123) through which a first fluid passes to be entrained in the second fluid when the second fluid is flowing through the booster housing. The present invention also provides a booster assembly (12) comprising a booster apparatus (10) and a fluid motive mechanism such as a turbine unit (11).

A hydrostatic pressure to kinetic energy conversion system comprises a hydraulic head water column having a lower end which diverges to a pair of pressure channels. A valve system interfaces the water column and the pressure channels so that hydrostatic pressure from the water column alternately pressurises each channel. The system further comprises racks forced by pistons to act oppositely to rotate a driveshaft therebetween. Furling bladders within the channels forcibly unfurl under pressure to force the pistons. Proximal ends of the pistons may comprise sufficiently small diameter for envelopment by the furling bladders.

The hydraulic generator includes a first structure; a second structure, such that a water passageway from the inflow port to the outflow port is formed by the first structure and the second structure in a state that the second structure is attached to the first structure; a water turbine; and an electrical generator. The second structure is removable from the first structure, and includes a fixing portion fixing the fixed shaft.

A method and device are provided for generating electricity from a body of water including a power generating tube having inside walls, outside walls, a top and an inlet at the bottom. The tube includes a neck comprising an inlet to the bottom and an outlet open at the top. A gate valve blocking the inlet is opened by remote control signals. Alternatively, an explosive plug blocking the inlet is removed by an explosion initiated by a remote control device. The power generating tube loaded with a means for generating electricity and empty of water is installed in the water with the inlet located deep in the water below the top that is positioned above the surface of the water.

A flush valve has a valve body having a flushing tube, a power generating set, and a solenoid valve assembly. The power generating set is disposed within the flushing tube and has a turbine capable of rotating, an induction coil, and a magnet inserted through the induction coil and capable of simultaneously rotating with the water turbine. The solenoid valve assembly has an assembling mount, a solenoid valve assembled to the assembling mount, and a power supply electrically connected to both the induction coil and the solenoid valve. A first reserving space is formed between the assembling mount and a relief assembly. A second reserving space is formed between the solenoid valve and the assembling mount and communicates with the first reserving space. The solenoid valve optionally prevents the first reserving space and the second reserving space from communicating with each other.

A method to dispose at least one air guiding tube between a penstock and a water turbine installed on a dam to form negative pressure at an outlet of the air guiding device by the water kinetic energy produced from high speed of water flow to take in external air for pressurizing, so as to produce a plurality of pressured air bubbles mixed into the water. The water with pressured air bubbles would be decompressed when flowing to an exit of the penstock and has their volumes increased, so as to enhance the water kinetic energy for driving the water turbine more efficiently; meanwhile the method can prevent from production of cavities and further avoid damages of the components of the water turbine from cavitation.