The invention relates to a motor with a stator (2, 2′) and a rotor (1, 1′), which can be driven about an axial direction (4). The invention is characterized in that at least one of the stator and the rotor, in particular the stator, which has a winding arrangement that can be supplied with a current, can be radially compressed and expanded.

A time-varying current from a DC voltage-source, flows through a primary winding of a magnetic circuit containing permanent magnets, induces more inductive voltages across different windings. The windings are wrapped around the main, sub-magnetic paths of different forms and constructions of the Tran-generators.

The invention when combined with any one of recovering the utilized electric charge, using the (hybrid) soft magnetic wires, applying the Voltage-Doubler circuits, and using the transfer of high-potential electric charge to generate more electric energy, make the tran-generators useful.

Apparatus and methods of generating electricity using buoyancy principles, a buoyancy-driven power generation system comprising a closed-loop passage defined by a surrounding structure, the closed-loop passage arranged vertically to extend longitudinally along a closed-loop path, the passage configured to retain a liquid, a plurality of rotor-vessels slidingly arranged within the closed-loop passage and configured to translate along the closed-loop path within the closed-loop passage, each of the plurality of rotor-vessels including a fluid-retention cavity formed in a body of the rotor-vessel and having a density greater than a liquid in which the plurality of rotor-vessels will be submerged for power generation operations.

Alternator/starters and methods for providing electrical power to a vehicle and rotating an engine are disclosed. In one example, the alternator/starter provides a differential action whereby torque on an input side of the alternator may be maintained while speed of an output side of the alternator may be varied. The alternator/starter includes two armature windings and two field windings.

An assembly for generating electricity includes a circular track configured to rotate about a first axis of rotation, the circular track comprising a first magnet having a face that is at an angle with respect to the first axis of rotation, a second magnet positioned at a center of the circular track, wherein a face of the second magnet is an opposite polarity to the face of the first magnet such that the second magnet repels the first magnet to rotate the circular track, and a device for converting rotational motion from the circular track into electricity.

A generator with reduced reverse torque which may be used as a singular, point of use, compact electric generator that produces power with high efficiency and very low reverse torque. The generator comprising a stator having slots and stator coils and a series of slot rotors placed in relation to the stator coils such that minimal destructive interaction is caused between magnetic fields of each rotor and induced magnetic fields of the stator when the power generator is connected to an electric load with at least a portion of that power being sent to a storage device where a portion of the stored power is provided to excitation circuitry utilized to re-excite a motor to drive the slot rotors.

A generator with reduced reverse torque which may be used as a singular, point of use, compact electric generator that produces power with high efficiency and very low reverse torque. The generator comprising a stator having slots and stator coils and a series of slot rotors placed in relation to the stator coils such that minimal destructive interaction is caused between magnetic fields of each rotor and induced magnetic fields of the stator when the power generator is connected to an electric load with at least a portion of that power being sent to a storage device where a portion of the stored power is provided to excitation circuitry utilized to re-excite a motor to drive the slot rotors.

A solid-state electromagnetic rotor, including a plurality of salient pole pieces arranged around a supporting structure, wherein a first end of each salient pole piece is attached to the support structure and a second end of each salient pole piece points outward away from the supporting structure. The wires wound around each salient pole piece, wherein when the wires of the plurality of salient pole pieces are sequentially excited by an excitation circuit. The salient pole pieces are energized to provide a moving polar magnetic field in the form of distinct magnetic poles as desired to accomplish power generation.

Wireless power transmission (WPT) systems are provided. For example, the WPT system can use one or more power transmitting coils and a receiver for electromagnetically coupled wireless power transfer. The electrodynamic receiver can be in the form of an electrodynamic transducer where a magnet is allowed to oscillate near a receiving coil to induce a voltage in the receiving coil, a piezoelectric transducer where the magnet causes a vibrating structure with a piezoelectric layer to move, an electrostatic transducer where movement of the magnet causes a capacitor plate to move, or a combination thereof. An alternating magnetic field from the transmitting coil(s) excites the magnet in the receiver into mechanical resonance. The vibrating magnet then functions similar to an energy harvester to induce voltage/current on an internal coil, piezoelectric material, or variable capacitor. Embodiments utilize magnetic coupling and electromechanical resonance for safe, spatially distributed, low-frequency power delivery to portable devices.

Various aspects include electric generators configured to boost electrical output by leveraging electron avalanche generated by a high energy photon radiation source. In various aspects, an electric generator includes a stator and a rotor positioned within the stator, wherein the stator and rotor are configured to generate electric current when the rotor is rotated, and a high energy photon source (e.g., a gamma ray source) positioned and configured to irradiate at least a portion of conductors in the rotor or stator. In some aspects, the stator generates a magnetic field when the electric generator is operating, and the rotor includes armature windings configured to generate electric current when the rotor is rotated. In some aspects, the high energy photon source includes cobalt-60 and/or cesium-137.