The dynamo for/on bicycles comprises a housing (1) which can be secured to the bicycle and accommodates a stator (2) and a rotor (3); the rotor (3) can be set in rotary motion by a drive member (4), which can be driven by a bicycle wheel. The drive member (4) is mounted rotatably around a wheel axle (6) so as to be kinematically connectable with the wheel and forms part of an engageable and disengageable dynamo gearing (7) which rotates the rotor (3) in dependence on the rotation of the wheel. T...

A system for extracting energy from the passing wheels of a railcar, converting the energy to into rotation of a shaft in first and second directions, converting the rotation of the shaft into electrical energy, and storing any excess generated electricity. A pivoting member includes a shaft, first and second arms extending from the shaft, and contact elements at the ends of the arms. The vertical reaction force imparted to the wheels of a passing railcar may be minimized by, among other techniq...

An electric power generating plant with an electric motor (11) driven by an internal combustion engine (4) is arranged in a chamber enclosed in a housing (1) surrounded by an insulating material (13) via a water jacket. A heat exchanger through which the exhaust gases (18) of the internal combustion engine flow is arranged inside this water jacket.

The present invention is directed to an apparatus for generating electricity, which includes a plurality of components which cooperate together. A housing is provided which defines a substantially enclosed and continuous, closed-loop airflow pathway. At least one power consuming air propeller is provided within the closed-loop airflow pathway for propelling air within the substantially enclosed and continuous closed-loop airflow pathway. A means is provided for energizing the at least one power ...

A system is provided for converting mechanical motion of vehicles into electrical energy. The system includes a plurality of motion converter assemblies each including a rod which remains in communication with a vertical motion delivery mechanism via a gearing mechanism for rotating the rod in response to traffic flowing thereover. Also included is a plurality of pumps each connected to the rotating rod for generating pressurized fluid in response thereto. A fluid turbine is provided for generat...

A solar tracker which has a pneumatic motor that moves a reflective surface. The pneumatic motor is power by pressurized air stored in a pedestal of the tracker. The pressurized air is replenished by a compressor that draws in air from the atmosphere. The pneumatic motor and compressor are controlled by a microcontroller. The controller, compressor and pneumatic motor are all powered by an energy system that converts solar energy into electric power, thereby providing a self-contained tracker. T...

A device for monitoring a rotating shaft is provided. The device measures strain in the shaft and provides angular velocity and torque in the shaft. The device includes a sensor, sensor conditioning circuitry, a microprocessor, and a transmitter, all located on a rotating shaft. The device obtains power by harvesting mechanical energy of the rotating shaft itself. Coils are provided rotating with the shaft and permanent magnets are mounted adjacent the rotating shaft so electrical energy is indu...

Energy for in-tire use is generated from the load induced reciprocating deflection of the tire inner walls above the tire-to-road contact patch adjacent to the shoulder of the tire. This energy is used to power in-tire monitoring electronics. For pulsatile energy generation with capacitive capture, the capacitor is optimally selected in real-time as a function of pulse width to maximize energy capture, or as a function of the pulse-captured energy. The resulting energy pulses are also used to me...

A power generating system comprises a bluff (non-streamlined) body placed in a fluid stream at ninety degrees to the flow direction for creating a von Karman vortex street behind the body. In the process, feedback forces are generated that excite the bluff body into oscillation. The bluff body oscillatory movements are coupled to and energize a power generator. An impedance matching system is employed for electrically varying the natural frequency characteristics of the bluff body such that, ove...

A gravitational electric power generating device includes a driving shaft, at least a spinning wheel, and two mount assemblies, in which each of the spinning wheels includes a first spoke rim, a second spoke rim, a wheel hub, and at least a tread-wheel. The two mount assemblies are erected at the two ends of the driving shaft, respectively, and can support both the driving shaft and the spinning wheel on the driving shaft. Using a moving object to move in the tread-wheel, and making use of the g...