摘要:
An electric generating speed bump is described, which combines two applications: Firstly—it works as a usual commonly and widely used speed bump (a humplike bar which fixed to the surface across the road to slow down passing vehicles); Secondly—it converts the kinetic energy and weight force of the vehicle which passes the speed bump to electric energy. The electric energy is generated by linear electric generator (which is installed inside the speed bump) when the wheels of a vehicle roll over the speed bump.The electric generating speed bump generates clean ecologically friendly renewable energy, reduces consumption of fossil fuels in national economy.
摘要:
A system that converts environmental vibrational energy into electrical energy includes a transducer that undergoes oscillating movement in response to the vibrational energy in order to produce an oscillating electrical signal. Power electronics process the oscillating electrical signal. A control system (including at least one control element of the power electronics, at least one sensor and control electronics) carries out a control scheme that dynamically varies the dampening of the oscillating movement of the transducer over time. The control scheme is based upon a predetermined parametric relation involving a plurality of variables derived from the properties measured by the at least one sensor. In several embodiments, the plurality of variables includes a first variable representing excitation frequency of the transducer. In another embodiment, the predetermined parametric relation represents relative phase between two variables derived from the properties measured by the at least one sensor.
摘要:
A movable barrier operator remote controller can comprise a vibration-powered electrical generator, a user interface, and a wireless transmitter configured to transmit a movable barrier operator communication in response to the user interface and as powered, at least in part, by the vibration-powered electrical generator. The controller can further comprise an electrical-energy storage unit (such as a battery and/or a capacitor) that is coupled to an electric power output of the vibration-powered electrical generator to thereby receive and store electric power from the vibration-powered electrical generator. So configured, the electrical-energy storage unit can provide operating power to the wireless transmitter on an as-needed basis.
摘要:
A low-profile, surface mount vehicle energy harvester including a low-profile, surface mount subunit having an upper surface forming a roadway surface; a vehicle activated treadle on the subunit, the vehicle activated treadle moveable between a first position in which an upper surface of the treadle is at an angle with respect to the upper surface of the roadway surface and a second position in which the upper surface of the treadle is flush with the upper surface of the roadway surface; a generator that generates power in response to movement of the vehicle activated treadle; and an entry ramp at a first end of the harvester roadway surface; and an exit ramp at a second end of the harvester roadway surface.
摘要:
A linear energy harvesting device that includes a housing and a piston that moves at least partially through the housing when it is compressed or extended from a rest position. When the piston moves, hydraulic fluid is pressurized and drives a hydraulic motor. The hydraulic motor drives an electric generator that produces electricity. Both the motor and generator are central to the device housing. Exemplary configurations are disclosed such as monotube, twin-tube, tri-tube and rotary based designs that each incorporates an integrated energy harvesting apparatus. By varying the electrical characteristics on an internal generator, the kinematic characteristics of to the energy harvesting apparatus can be dynamically altered. In another mode, the apparatus can be used as an actuator to create linear movement. Applications include vehicle suspension systems (to act as the primary damper component), railcar bogie dampers, or industrial applications such as machinery dampers and wave energy harvesters, and electro-hydraulic actuators.
摘要:
At least one energy storage system is provided for receiving and releasing at least a part of the converted kinetic energy from a landing aircraft. The system has a high degree of multiple utilisation and enables, for example, manoeuvring of a landed aircraft on the taxiway independently of the engines, where the aircraft is substantially moved with the braking energy recovered during the landing process. As a result of the main engines no longer being required for manoeuvring, there is a considerable potential for saving energy and the use of motor-operated tow vehicles is eliminated. The apparatus also contributes in the sense of a “green” and economical technology to saving aircraft fuel and better fulfils future requirements of airports, particularly with a view to noise and pollutant reduction. In addition, the invention has as its subject matter a method for recovering braking energy of an aircraft.
摘要:
A cluster of thrust rods are disposed in a module oriented to extend somewhat beyond the surface of a road or trackway adapted to receive vehicular traffic thereon, the thrust rod fastened to reciprocate in the presence of vehicular traffic and spring biased to return the thrust rod to an original, unstressed position. Each deflection of an associated thrust rod causes a fluid contained within a hydraulic piston/cylinder to be pulsed in response to pressure formed from a piston associated with the thrust rod, the thrust rod operating against spring tensioning to return to its unstressed state. Each fluid pulse is allowed to communicate through a single fluidic line to a second piston/cylinder arrangement having reduced cross section for a pulse of greater intensity and deflection, and spring biased to return to an original, unstressed position simultaneously with the thrust rod. This piston cylinder arrangement is provided with double sided piston surfaces one surface remote from the single fluidic line fluid. The remote surface deflection communicates with a pump/manifold system communicating with a reservoir executing its fluid to travel in a fluid conduit past a turbine and generator arrangement or a similar instrumentality for the useful output associated with a liquid impinging against the turbine's blades. Tailwater from the turbine flows to a reservoir to be reinitialized.
摘要:
Energy harvesting systems are described in which electroactive materials, such as dielectric elastomers, may be utilized to absorb the shocks, bumps, and vibrations from the road or path to generate energy which is captured and stored for use in the vehicle to provide additional power for any number of uses. Other devices and systems, such as household appliances which dissipate vibrational energy, may also incorporate any number of the dielectric elastomer generators.
摘要:
A structurally integrated modular system for energy recovery from vehicular traffic as further disclosed. The system comprises an “X” & “Y” axis horizontal array of Linear Electromagnetic Generators, (LEGs), in a close packed hexagonal or other shaped structural grid, as further disclosed. Each LEG is spring-less, using a high strength main core magnet, and a fixed lower magnet to repel the main core magnet at a designed coercive restoring force. The plurality of LEGs are contained within Modular Prefabricated Structural Sandwich Composite Panels, (MPSSCPs), designed to be placed upon a roadway surface, (whose upper surfaces are flexible and lower surfaces semi-rigid). The resultant energy recovery is thereby converted to electric power and heat. The MPSSCPs, and their accessory panels are thereby installed upon a roadway bearing surface to generate clean electric power and heat, which thaws ice and snow, when and where necessary.
摘要:
Embodiments of the invention provide robust electrothermal MEMS with fast thermal response. In one embodiment, an electrothermal bimorph actuator is fabricated using aluminum as one bimorph layer and tungsten as the second bimorph layer. The heating element can be the aluminum or the tungsten, or a combination of aluminum and tungsten, thereby providing a resistive heater and reducing deposition steps. Polyimide can be used for thermal isolation of the bimorph actuator and the substrate. For MEMS micromirror designs, the polyimide can also be used for thermal isolation between the bimorph actuator and the micromirror.