Kinetic energy harvesting devices are disclosed including, but not limited to, portable and stationary devices that generate electricity from motion resulting from any type of movement including human movement, movement of traveling vehicles, gravitational movement, and movement resulting from stored spring energy. The kinetic energy harvesting devices can be used for charging batteries and powering devices such as personal electronic devices and electric vehicles.

According to one embodiment, a vibration generator includes first and second integrated elastic support bodies, a vibrator, and a coil. Each of the first and second integrated elastic support bodies includes an elastic beam part configured to undergo elastic deformation, and a support part supporting the elastic beam part, the elastic beam part and support part being integrally formed. The vibrator includes a magnet and a magnetic material, and is interposed between the first and second integrated elastic support bodies and supported so as to vibrate. The coil is located inside the vibrator, and interposed and supported between the first integrated elastic support body and the second integrated elastic support body.

The present disclosure is of energy harvesting generators producing power to electrical loads by a novel method of the inline triggering of a horizontal pendulum that vertically oscillates for an established time duration. The horizontal pendulum component has disposed and fixed, a magnet whose travel is under the direct influence of the motion of the pendulum component. This oscillation of the pendulum and its disposed magnet is situated proximal to an electrical coil that has disposed a magnet enclosure with a disposed magnet that is in the center of the coil arrangement. The instant triggering is accomplished by a novel trigger whose end has a first trigger tooth that upon an external applied force comes in contact with a second trigger tooth that forces the pendulum downward beyond it release position to allow the pendulum and magnet to freely oscillate. Converse action occurs when the triggering force is instantly removed.

Kinetic energy harvesting devices are disclosed including, but not limited to, portable and stationary devices that generate electricity from motion resulting from any type of movement including human movement, movement of traveling vehicles, gravitational movement, and movement resulting from stored spring energy. The kinetic energy harvesting devices can be used for charging batteries and powering devices such as personal electronic devices and electric vehicles.

An arc turbine system includes an elliptical housing, a rotor having two sliding channels positioned centrically to the housing, and two sliding arcs disposed within the rotor sliding channels and slide therein. The sliding arcs are engaging the housing simultaneously at both ends in a near friction-free environment supported by repulsion force of like-pole magnets. Four chambers disposed within two static chambers between the rotor and the long-axis of said housing, the two static chambers further include proper inlet and outlet ports configured to allow fluid and gas flow into and flow out of the static chambers. The system configured in two distinct settings for two distinct uses. 1) To generate dense rotating energy with optimum efficiency, and high power-to-weight ratio by burning fuel and 2) to pump, compress, vacuum, convey, pressurize, turbocharge, allow precision and micro-movement of gas and liquid, conversion of pressurized gas and liquid to rotating energy, all with optimum efficiency, near-zero vibration, near-zero friction, capability of handling all viscous fluids and 100% increased flow rate using dual inlet and dual outlet ports.

A system for generating electrical energy from the wave motion of the sea is provided with electrical-energy generating means for exploiting the wave motion of the sea in order to generate electrical energy. A floating body is provided with equipment designed to regulate the frequency of the resonance peak of the system.

A bladeless wind turbine may include a flexible support rod mounted on a support surface, an elongated rigid mast mounted on the flexible support rod, and a natural tuning mechanism coaxially mounted around a first portion of the flexible support rod. A natural tuning mechanism may include a housing coaxially attached to the flexible support rod, at least one extendable tube slidably housed within the housing and coaxially mounted and fitted around the flexible support rod. At least one extendable tube may be slidably moveable along the main axis of the flexible support rod and may be extendable beyond the top end of the housing by a predetermined height. A bladeless wind turbine may further include a control unit that may be coupled to the natural tuning mechanism and may be configured to urge the at least one extendable tube to extend beyond the top end of the housing by a predetermined height, where the predetermined height may be calculated by the control unit based on the wind and the elongated rigid mast.

Various embodiments of the present invention are directed toward a linear combustion engine, comprising: a cylinder having a cylinder wall and a pair of ends, the cylinder including a combustion section disposed in a center portion of the cylinder; a pair of opposed piston assemblies adapted to move linearly within the cylinder, each piston assembly disposed on one side of the combustion section opposite the other piston assembly, each piston assembly including a spring rod and a piston comprising a solid front section adjacent the combustion section and a gas section; and a pair of linear electromagnetic machines adapted to directly convert kinetic energy of the piston assembly into electrical energy, and adapted to directly convert electrical energy into kinetic energy of the piston assembly for providing compression work during the compression stroke.

According to one embodiment, a power control circuit includes a converter, a signal generating circuit, an estimation unit, and a controller. The converter includes a switching circuit and is configured to transform an output voltage from a power generator. The signal generating circuit is configured to transmit a signal to the switching circuit. The estimation unit is configured to determine a switching operation condition based on vibration information indicative of a vibration applied to the power generator. The controller is configured to control an operation of the switching circuit based on the determined switching operation condition.

Various examples are provided related to linear resonant machines. In one example, a linear resonant machine includes an electrical stator including a winding; a translator disposed within the winding; and one or more springs that can provide axial coupling force. The one or more springs can include a flexure plate coupled between the translator and a chassis or the stator assembly of the linear resonant machine. The flexure plates can oscillate the translator axially at a resonant frequency within the at least one winding of the electrical stator. One or more engines can be coupled to a shaft of the translator to operate the linear resonant machine as a generator. The winding of the electrical stator can be excited to operate the linear resonant machine as a motor.