A vertically arranged water tower system is operated using a long buoyant device that spans upper and lower chambers thru a watertight compressible bellows. Raising the buoyant device by controlling the water level in the water tower creates a void in the lower chamber, equal to the volume of the buoyant device no longer in the lower chamber. The void is created without displacing water in the lower chamber. Water or a buoyant object fills the void from slightly higher level than the lower chamber. After reconnecting the upper and lower chambers, water is extracted and released near the top of the upper chamber and the buoyant device is lowered. Released water is used for energy and power productions and recycled.

A bi-level tank includes a transfer tank and a return tank containing a volume of water, including transfer and return components in the transfer and return tanks, respectively, and a transition component. A bellows couples an upper surface of a piston in the transfer tank to the return component that exerts pressure on the upper surface, while a lower surface of the piston is under pressure from a pressured fluid supplied by a source thereof, producing a pressure differential on the piston. Actuation of a force-applying mechanism on the piston sufficient to overcome the pressure differential displaces the piston for exchanging respective volumes of the return component and the fluid from the source. An extensible and retractable constant-volume boot holds the transition component around the bellows and has valves configured to open and close for equalizing pressure between the boot and the transfer tank.

Provided are a buoyant body disposed in a water tank, floating in water, and configured to ascend by water being, injected and descend by water being drained, a variable capacity tank having a changeable filling capacity of air put inside, a weight placed on an upper part of the variable capacity tank in order to exhaust air in the variable capacity tank, and a generator configured to generate power by rotating a turbine with the air exhausted from the variable capacity tank, in which the upper part of the variable capacity tank is configured to be pulled up by a motion conversion device to take air inside when the buoyant body ascends by the water being injected, and the air exhausted from the variable capacity tank by a weight of the weight is utilized for a rotation of the turbine of the generator to generate power.

A generator system that includes a platform configured to support a load (FIG. 1). The platform is located in an area at which loads are present for a certain period of time on a recurrent basis. That is, loads that undergo recurrent loading and unloading, wherein loads on the platform will cause compression of the platform thereby generating motive power. The generator system includes a generator operatively connected to the belt and configured to convert at least a portion of the motive power into electric energy. The generator system further includes an automatic transmission box configured to translate the at least a portion of the motive power to the generator.

A machine for driving an electric generator moves a power module through a DOWN and UP duty cycle along a closed-loop, vertically oriented pathway. In the DOWN portion of the duty cycle, the module falls through air under the influence of gravity and generates kinetic energy for work to drive the electric generator. Upon disengagement of the power module from the electric generator, the kinetic energy of the power module then dives the power module into a bi-level water tank for a subsequent UP portion of the duty cycle. A valve mechanism and a displacement device are submerged in the bi-level tank to cooperate, in combination with each other, to create an unobstructed underwater pathway for the power module through the bi-level tank. The power module then rises under the influence of buoyancy to generate sufficient momentum for exit from the bi-level tank, and a consecutive duty cycle.

A system for energy conversion, including a support structure defining at least one guide channel; at least a plurality of extensible elements between a compressed configuration and a dilated configuration and vice versa and configured to move a volume of a fluid in which they are immersible equal to the predetermined volume difference between the dilated configuration and the compressed configuration of each extensible element. The extensible elements are configured to slide along the guide channel during a switching of the extensible elements. During the switching of the extensible elements the system determines a conversion of potential energy into an useful energy, whose value is proportional to a total volume of the fluid displaced by the extensible elements in the dilated configuration and at a depth reached by an extensible element with respect to said free surface of the fluid.

A system configured for producing electric power from sea waves. The system includes a buoyant body; an electric generator including an input shaft adapted to rotate with respect to the buoyant body; a first arm coupled to the electric generator; a second arm; and a pivot joint rotatably joining the second arm to the first arm, said arm. The pivot joint is at a distance, along the first arm, from the input shaft. The first arm connects the second arm to the generator. The tandem arms form a double pendulum system powering an autonomous floating sea analysing station.

Provided are a buoyant body disposed in a water tank, floating in water, and configured to ascend by water being, injected and descend by water being drained, a variable capacity tank having a changeable filling capacity of air put inside, a weight placed on an upper part of the variable capacity tank in order to exhaust air in the variable capacity tank, and a generator configured to generate power by rotating a turbine with the air exhausted from the variable capacity tank, in which the upper part of the variable capacity tank is configured to be pulled up by a motion conversion device to take air inside when the buoyant body ascends by the water being injected, and the air exhausted from the variable capacity tank by a weight of the weight is utilized for a rotation of the turbine of the generator to generate power.

A power generating system based solely on gravity includes a housing with water in a main chamber. A convertible piston interacts with the water to move to displace the water in a cycle. The displaced water is directed into and through power generating units, with the outputted water from one power generating unit continued towards and through a subsequent power generating unit as the water moves back towards the main chamber of the housing. The water is then able to interact again with the convertible piston to again be displaced through the power generation cycle. At least two separate power generating systems are integrated for uninterrupted power supply for 24 hrs per day, 7 day per week and 365 days per year. This cycle continues (not in the concept of perpetual motion), as needed, to create energy that can be used on-demand or otherwise stored for future use.

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.