A wind turbine assembly comprising a cantilever support, a rotor assembly having a rotor hub rotatably coupled to the cantilever support, and a plurality of rotors radially arranged about and coupled to the rotor hub is provided. Each rotor includes a rotor arm defining an arm axis, a blade element, and an adjustment mechanism coupled between the rotor arm and the blade element. The blade element has a concave face portion and defines a target axis. The adjustment mechanism is movable between a first rake angle defined between the first arm axis and the target axis, and a second rake angle to position each of the blade elements relative to each other.

A wind power generation device includes a rotor assembly and a stator. The rotor assembly includes a rotating member, a first magnetic module, and a second magnetic module the latter two of which are fixed on the rotating member. The rotating member has a column and a spiral blade connected to the column. The first and second magnetic modules are arranged outside the spiral blade and face each other. The rotor assembly defines an annular gap formed around the spiral blade and between the first and second magnetic modules. The stator assembly includes a frame, a positioning member connected to the frame, and an induction module fixed on the positioning member and arranged in the annular gap. The spiral blade can rotate the rotator assembly relative to the stator assembly by wind, so that a region between the first and second magnetic module sweeps over the induction module.

A rotary device (e.g., a rotary jet), power generation system, and methods of manufacturing and using the same are disclosed. The rotary jet includes a central axle or shaft, an inlet configured to receive at least one fluid, and a plurality of radial arms in fluid communication with the inlet, configured to rotate around the central axle or shaft. Each radial arm has a nozzle at a distal end thereof and an arc between the inlet and the nozzle. The radial arms extend radially from the central axle or shaft at least in part, and are configured to rotate when the fluid enters the inlet and passes through the radial arms, or when a rotational force is applied to the central axle or shaft. Each nozzle may have an opening facing away from a direction of rotation of the radial arms or facing in a direction parallel with the central axle or shaft.

The present invention provides a single-frame impeller of a wind turbine generator set. The impeller includes blades and a blade adjusting device. The blade adjusting device comprises a blade adjusting chamber to which the blades are connected, a motor and an adjusting mechanism. The adjusting mechanism comprises transmission mechanism, adjusting frame, rotating arm and connecting rods. Transmission mechanism comprises swinging arm, a positioning shaft, a main drive arm and a push-pull rod. The adjusting frame is assembled onto blade adjusting chamber; the rotating arms are fixed on the blade shafts and the connecting rods, and the other end of each connecting rod is hinged with the adjusting frame; two ends of the positioning shaft are installed on the fixed seat; swinging arm is fixed at positioning shaft and is hinged with main drive arm, and the main drive arm is connected with the motor.

A spiral blade unit is disclosed, which generates less blade-sagging, deformation, or vibration, can be made of various material, can be made with light material, and can be installed easily in interconnecting spiral blades. The spiral blade unit includes a rotational axle and spiral blades with root portions attached along an outer circumferential surface of the rotational axle, and the spiral blades are interconnected to one another through a blade connector.

The invention provides a method for computational fluid dynamics and apparatuses making enable an efficient implementation and use of an enhanced jet-effect, either the Coanda-jet-effect, the hydrophobic jet-effect, or the waving-jet-effect, triggered by specifically shaped corpuses and tunnels. The method is based on the approaches of the kinetic theory of matter providing generalized equations of fluid motion and is generalized and translated into terms of electromagnetism. The method is applicable for slow-flowing as well as fast-flowing real compressible-extendable generalized fluids and enables optimal design of convergent-divergent nozzles, providing for the most efficient jet-thrust. The method can be applied to airfoil shape optimization for bodies flying separately and in a multi-stage cascaded sequence. The method enables apparatuses for electricity harvesting from the fluid heat-energy, providing a positive net-efficiency. The method enables generators for practical-expedient power harvesting using constructive interference of waves due to the waving jet-effect.

The invention provides a method for computational fluid dynamics and apparatuses making enable an efficient implementation and use of an enhanced jet-effect, either the Coanda-jet-effect, the hydrophobic jet-effect, or the waving-jet-effect, triggered by specifically shaped corpuses and tunnels. The method is based on the approaches of the kinetic theory of matter providing generalized equations of fluid motion and is generalized and translated into terms of electromagnetism. The method is applicable for slow-flowing as well as fast-flowing real compressible-extendable generalized fluids and enables optimal design of convergent-divergent nozzles, providing for the most efficient jet-thrust. The method can be applied to airfoil shape optimization for bodies flying separately and in a multi-stage cascaded sequence. The method enables apparatuses for electricity harvesting from the fluid heat-energy, providing a positive net-efficiency. The method enables generators for practical-expedient power harvesting using constructive interference of waves due to the waving jet-effect.

The invention provides a method for computational fluid dynamics and apparatuses making enable an efficient implementation and use of an enhanced jet-effect, either the Coanda-jet-effect, the hydrophobic jet-effect, or the waving-jet-effect, triggered by specifically shaped corpuses and tunnels. The method is based on the approaches of the kinetic theory of matter providing generalized equations of fluid motion and is generalized and translated into terms of electromagnetism. The method is applicable for slow-flowing as well as fast-flowing real compressible-extendable generalized fluids and enables optimal design of convergent-divergent nozzles, providing for the most efficient jet-thrust. The method can be applied to airfoil shape optimization for bodies flying separately and in a multi-stage cascaded sequence. The method enables apparatuses for electricity harvesting from the fluid heat-energy, providing a positive net-efficiency. The method enables generators for practical-expedient power harvesting using constructive interference of waves due to the waving jet-effect.

A fluid flow turbine having a turbine rotor with a plurality of blades (also known as vanes) for converting the kinetic energy of a flowing fluid into mechanical rotational energy of the turbine rotor is provided by this invention. The plurality of blades are defined by a continuously sinuous curve outer edge that results in the lateral surface of the blades having a lower concave portion for scooping up the horizontal incoming fluid flow and redirecting it to a substantially vertical fluid flow along the lateral surface of the blade. The upper portion of the lateral surfaces of the blades is convex, causing the upper edge of the blades to tail off laterally so that the fluid flow exits the turbine in a substantially vertical direction, instead of turning back upon itself to reduces turbulence of the fluid flow inside the turbine. The fluid flow turbine can comprise a small wind turbine that will produce electrical power at low wind speeds, and can be mounted to the top of a building.