Through dividing all blades into four or more blade groups including a certain number, which is three or more, of the blades, the blade located in the rearmost portion of each blade group in a direction of rotation is selected as a main blade, and remaining blades are selected as auxiliary blades, the length of each of the auxiliary blades is set to be shorter than the length of the main blade, and corresponding inner edge portions are positioned to the front, in the direction of rotation, of a normal line that passes through an outer edge portion of the blade, and an extension line of a chord line that connects the outer edge portion and the inner edge portion of the blade to one another are made to intersect with the main blade that is adjacent to the front in the direction of rotation.

A harnessing module for harnessing renewable wind and water energy comprises opposing concentric wings for rotation about a shaft having a hub comprising at least one pair of opposing concentric wings for use in generating renewable electrical energy. Each concentric wing of the opposing concentric wings may have a circular leading edge for facing one of air and water flow, each concentric wing having a generally curved upper surface but for a curved downward surface and a sharp trailing edge opposite the circular leading edge of each concentric wing. The circular side and curved upper surface are preferably at a positive angle of attack where one of water or wind flow is received at the circular side and provides lifting rotation of the opposing concentric wings. Hence, the opposing concentric wings rotate about the turbine shaft and comprise a harnessing module for generating electricity from either the wind or water flow.

A floating electrical power generator having a three-dimensional (3D) flow passageway configured for increasing the water flow on the paddle wheel to increase the power output.

A power system includes a first wheel coupled to a first turbine. The first wheel includes a first central hub on a first central axis, and a first plurality of water scoops arranged at a radial distance from the central hub, the first plurality of water scoops arranged to engage a water source to turn the first wheel on the first central hub about the first central axis. The first wheel has a first plurality of weights arranged substantially equally spaced about a circumferential portion of the first wheel. A second wheel is coupled to a second turbine, and includes a second central hub on a second central axis, and a second plurality of water scoops arranged to engage the water source to turn the second wheel about the second central axis, the second wheel having a plurality of weights arranged substantially equally spaced about a circumferential portion of the second wheel. An air conduit is coupled to a blower of the second turbine to receive blown air from the blower and to blow air through the conduit into the plurality of water scoops of the first and of the second wheels.

Methods and systems for controlling the release of heat by a temperature control unit are provided. In one embodiment, the method includes monitoring a heat release condition of the temperature control unit. This method also includes determining, via a controller, whether to release the heat generated by the temperature control unit to an ambient environment outside of the internal space based on the heat release condition. Also, this method includes operating a HVAC circuit of the temperature control unit in a heat release mode when the controller determines that the heat generated by the temperature control unit is to be released to the ambient environment outside the internal space. Further, this method includes operating the HVAC circuit of the temperature control in a heat storage mode when the controller determines that the heat generated by the HVAC unit is not to be released to the ambient environment outside the internal space.

A marine hydrokinetic electric power or wind power generator comprises a harnessing module, a controlling module, and a generating module, the harnessing module comprising one of a propeller and a waterwheel for receiving wind or water energy, the controlling module further comprising a magnetic gearbox for matching the expected wind or water generating power to an output power, a control motor, and a Hummingbird comprising first and second Transgears and simplifications and variations thereof has three variables, input, output and control and connects the three modules. The assembly of harnessing module, controlling module and the generating module comprises an input shaft from the harnessing module and a constant speed control motor which may be an alternating current or direct current control input and a generator for generating power output and works like a rotary frequency converter: the rotational speed (rpm) of the control input dictates the frequency to be generated. The generating module (generator) generates output power which comprises a multiple of at least ten times the power rating of the controlling module (the constant speed control motor). Principles of application of a Hummingbird comprising first and second Transgears in conjunction with those of a rotary frequency converter, and simplifications thereof, may be extended to infinitely variable transmissions for gasoline and electric vehicles and to pumps and compressors.

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.

The present invention relates to a hydroelectric power generation device using a multistage cascade structure. The hydroelectric power generation device includes: a support (10) having a predetermined length and installed in a vertical direction; a plurality of waterwheels (20) each including a horizontal axle (21) rotatably installed on the support (10) and a plurality of buckets (22) radially arranged around the axle (21); upper and lower water tanks (30, 40) respectively installed on upper and lower portions of the support (10) and respectively containing predetermined amounts of water; a pump (50) installed in the lower water tank (40) to supply water from the lower water tank (40) to the upper water tank (30); generators (60) respectively installed on the axles (21) of the waterwheels (20); and a charging battery (70) configured to store electricity produced by the generators (60). Thus, according to the present invention, electricity can be stably and effectively produced.

The present invention relates generally to the offshore renewable energy utilization technology. A novel floating wind-wave integrated power generation system is based on the braceless semi-submersible floating wind turbine concept and the oscillating water column (OWC) wave energy generator. The integrated system includes the offshore wind energy system and the oscillation water column wave energy system. The novel floating wind-wave integrated power generation system transfers the rise and fall movement of the water column into the air in and out movement which is converted into the electricity by the air turbine generator. This invention makes good use of pontoons at of the semi-floating platform and the mooring lines. Since the wave energy system will move with the wave movement, which will reduce the power generation efficiency. The pontoon can help to mitigate this movement. The mooring system can further prevent the movement of the wave energy device. This invention uses the braceless structure, which simplifies the construction process and reduce the fatigue issues for the braces. Compared with the traditional three columns semi-submersible wind turbine, this invention enlarges the water plane area. The moment of inertia for hydrostatic stability is enhanced, and the stability of the floating foundation is improved.

A motor-driven water lifting device of which the water lifting device includes housing having water-lifting wheel mounted in accommodation chamber therein, water supply pipe disposed at the periphery of the housing and having water inlet for guiding water into accommodation chamber and water outlet for guiding water out of accommodation chamber, and air inlet hole located on water supply pipe for allowing an external gas to be filled into accommodation chamber of housing so that when water is guided through the water inlet into accommodation chamber, the intake water is agitated by the water-lifting wheel and mixed with the external gas in the accommodation chamber to form a bubble water. The water molecules of the bubble water are finely mixed by mixing with the gas, and the fine bubble water is suitable for cleaning various objects to achieve an optimized cleaning effect.