54 results about "Power flux" patented technology

Methods and systems are provided for achieving delivery of power wirelessly using a highly beam-formed array of radio frequency (RF) transmitters as a source and a spatially beam-formed array of receivers that collect the impinged RF power and feed a multistage RF to direct current (RF-DC) conversion circuit that, for example, increases output voltage by doubling the voltage at each stage, while power delivery remains constant. One or more embodiments may provide energy wirelessly and—unlike conventional systems where the power flux density may be too low for applications where an energy density (specific energy) on the order of several mega-Joules per kilogram (MJ/Kg) is desired—may provide sufficient power flux density for many practical applications.

Systems and methods for shading analysis and creating a 3D model of a surface of interest are provided. Such systems and methods may include taking ray traces to determine light contact with the surface of interest. Shadow maps may be generated. Power flux calculations may also be performed.

An object is to provide a power storage device provided with a battery that is a power storage means, for safe and accurate supply of electric power in a short period of time for drive power supply voltage without checking remaining capacity of the battery or changing batteries with deterioration over time of the battery for drive power supply voltage. The power storage device is provided with a battery that is a power storage means as a power supply for supplying electric power and a counter circuit for counting charging time of the power storage means. An electromagnetic wave with electric field intensity, magnetic field intensity, and power flux density per unit time which are transmitted from a power feeder are controlled, and the power storage means is efficiently charged using the electromagnetic wave in a short period of time.

Disclosed is a tower for a wind power station comprising a machine pod disposed on the tower and a rotor mounted on the machine pod so as to be rotatable about an essentially horizontal axis. Said rotor is provided with at least one blade. The tower is composed of a tubular upper section that is connected to a lower section which is embodied as a lattice tower in a transition zone. The lattice tower encompasses at least three corner posts. The upper tower section forms at least one sixth of the entire tower. The cross section of the lower tower section below the transition zone is greater than the cross section of the upper tower section while the transition zone is configured such that the cross section of the lower tower section is adjusted to the cross section of the upper tower section so as to optimize power flux.

Disinfection methods and apparatuses are provided which generate pulses of germicidal light at a frequency greater than 20 Hz and project the pulses of light to surfaces at least 1.0 meter from the disinfection apparatus. The pulses of light comprise a pulse duration and an energy flux sufficient to generate a power flux between approximately 200 W/m² and approximately 5000 W/m² of ultraviolet light in the wavelength range between 200 nm and 320 nm at the surfaces. Other disinfection methods and apparatuses are provided which generate pulses of light comprising germicidal light and visible light from a germicidal light source and generate pulses of light from a visible light source that is distinct from the germicidal light source. The projections of visible light from the light sources produce a continuous stream of visible light or a collective stream of visible light pulsed at a frequency greater than 60 Hz.

Supersonic Magnetic Advanced Generation Jet Electric Turbine (S-MAGJET) described herein, and a subsonic derivative, MAGJET, integrate a gas power turbine, superconducting electric power and propulsion generation, and magnetic power flux field systems along with an ion plasma annular injection combustor which utilizes alternative petroleum-based fuel and combustion cycles to create a hybrid turbine turbomachine for aerospace propulsion. The propulsion unit is able to achieve a dramatic increase in horsepower, combustion and propulsion efficiency, and weight reduction. In addition, the turbomachinery structures may be disposed within an exo-skeleton architecture that achieves an increase in thrust to weight ratio with a concomitant increase in fuel efficiency and power generation over traditional gas turbine technology today. The engine continuously adjusts the temperature, pressure and mass airflow requirements using an electromagnetic power management system architecture. Engine performance may be controlled across the entire desired flight envelope, whether subsonic, transonic or supersonic flight conditions. With bypass fan(s), compressor stages and turbine segments controlled electrically in a shaftless turbine design, the S-MAGJET maximizes the propulsion efficiencies over a broader range of operating conditions compared to current art of turbine technology and at much higher thermodynamic and aerodynamic efficiencies.

A method and apparatus for a non-geosynchronous orbit (NGSO) satellite to comply with equivalent power flux density (EPFD) limits are disclosed. The example implementations may allow a constellation of NGSO satellites to comply with EPFD limits without disabling beams transmitted from the NGSO satellites. The power level of one or more beams to be transmitted from the NGSO satellites may be dynamically adjusted according to a beam power back-off schedule. In some aspects, the beam power back-off schedule may specify beam power back-off values as a function of latitude on Earth, and may allow for maximum allowable power levels for beams transmitted from the NGSO satellites without violating any of the EPFD percentile limits.

A non-geosynchronous satellite system, where each satellite has an antenna (perhaps a multi-element antenna) to form a beam pattern comprising a set of beams in the footprint of the satellite, where in one implementation each beam is substantially elliptical in shape having a minor axis and a major axis, where the minor axes are substantially collinear and the major axes are substantially oriented east to west. For a satellite, power is reduced or turned off for a subset of the set of beams, wherein each beam in the subset is reduced at or below a corresponding power level such that when a beam is powered above its corresponding power level an equivalent power flux-density (EPFD) exceeds a limit at some point on the Earth's surface.

Low-pressure drop thermal assemblies, systems and methods of making low-pressure drop thermal assemblies for use in high power flux situations. A manifold body is attached to a distributor to form a subassembly. This subassembly is in communication with a substrate surface, which has a semiconductor device in need of thermal management thereon. An enclosed cavity is formed between the target substrate surface and the subassembly, and a seal of the cavity protects critical components residing on the active surface of the semiconductor device. The distributor includes a distributed liquid impingement microjet inlet array isolated from and parallel with a distributed microjet drain array for impinging cooling fluid and removing spent heated fluid in a direction orthogonal to a target surface for maximizing the heat transfer rate, and thereby providing high cooling flux capabilities while enabling low-pressure drops.

In a double clutch transmission with a winding path power flux arrangement, which has two countershafts arranged coaxially with respect to one another and with seven forward gears and a plurality of reverse gears, for selected gears the power flux extends from a part region of the transmission forward and then again back to another part region of the transmission in such a way that only four shift clutches are needed for shifting through all the gears.

The present invention describes a fluorescent dye doped polymer based optical wave-guide structure. The described polymers can be used to fabricate a range of display elements and illumination systems which work without the use of external electrical power. This is due to the process of the fluorescent dyes absorbing ambient light and then subsequently emitting light which is conducted by the polymer host material to a point where it is emitted. The emitted light can be of a range of colours depending upon the type of dye that polymers are doped with. There is a constant contrast between the light power flux emitted for the wave-guide structure and the light power flux of the ambient light. There is also provided a method in which a dielectric stack mirror layer fabricated on the surface of the polymer which can be used to improve the efficiency and the contrast of those optical elements.

Embodiments of the present invention are directed to a satellite communications system between satellites and terminal units that are sufficiently small to be handheld units and that operate within the earth power flux density limit. This is accomplished by using spreading spectrum waveform protocols that make efficient use of the allocated bandwidth. In one embodiment, a satellite communications system comprises at least one satellite, and at least one ground station each corresponding to one of the at least one satellite. Each ground station includes a spread spectrum transmitter and a spread spectrum receiver. Each of a plurality of mobile terminals includes a spread spectrum transmitter and a spread spectrum receiver. The spread spectrum transmitter of the at least one ground station is configured to communicate via the corresponding satellite with the spread spectrum receivers of the mobile terminals, and the spread spectrum receiver of the at least one ground station is configured to communicate via the satellite with the spread spectrum transmitter of the mobile terminals, using spread spectrum signals generated from baseband information signals narrower in bandwidth than the spread spectrum signals.

The invention relates to a hand tool machine with a torque limiter (2) enabling a user to set a maximum torque which is transmitted by a motor drive (4) to a tool carrier (6). According to the invention, the hand tool machine comprises an overload clutch which interrupts a power flux between the motor drive (4) and the tool carrier (6) when the transmitted torque exceeds the overload torque.

The invention relates to a device for measuring static and/or dynamic wheel loads or wheel contact forces, particularly of rail vehicles. The inventive measuring device comprises at least two load-receiving blocks with internal measuring sections and elements for holding and bracing the load-receiving blocks in a track system, at least two support means being arranged within one load-receiving block. The terminal pieces of a rod-shaped measuring section are mounted on the support means which are provided with stops locking said support means within the track system. At least two force-deflecting elements are disposed between a single-arm bracing device and the track system. Internal jamming of the whole assembly during mounting and dismounting and especially during the measuring process is excluded due to the overall design of the measuring blocks, particularly the force-deflecting elements that have a power flux-adequate design and the coupling construction which comprises a receiving element on the measuring block and a spherical zone with a guiding piece on the single-arm bracing device. Optimal adaptation to the specific assembly situation can be ensured by means of special configurations of the two terminal pieces of the single-arm bracing device such that tilting and lifting phenomena of the entire measuring device are excluded under load.

The invention discloses a niobium strengthening wear-resisting submerged arc bead weld flux-cored wire, which comprises a low-carbon steel cored solder wire and a power flux core arranged in the cored solder wire, and is mainly characterized in that the power flux core comprises the following components by weight percent: 30-55% of high-carbon ferrochrome, 4-16% of ferrocolumbium, 3-8% of deoxidant and 25-55% of iron powder. The bead weld layer of the invention has the advantages of evenly distributed hardness and high abrasive resistance; and the welding technological properties thereof are excellent.

This invention discloses a controller and method to operate a power electronic converter as a virtual synchronous machine with bounded frequency and virtual flux. The converter can be operated in the grid-connected mode or the is landed mode to take part in the regulation of the frequency and the voltage. The controller consists of (1) a real power-frequency channel to regulate the frequency, (2) a reactive power-flux channel to regulate the virtual flux (equivalently, the voltage amplitude), (3) an interconnection block that takes the frequency, the virtual flux, and an input current to generate a voltage, a signal {tilde over (T)}, and a signal {tilde over (Γ)} that are fed through a block and two passive filters to generate the negative real power feedback signal for the real power-frequency channel and the negative reactive power feedback signal for the reactive power-flux channel, respectively, (4) a virtual damper to generate an output voltage as the control signal for the power electronic converter according to the voltage generated by the interconnection block and a first measured voltage, and (5) a virtual impedance to generate a virtual current according to the difference of the output voltage and a second measured voltage. The controller also includes auxiliary blocks to achieve self-synchronization without measuring or estimating the grid frequency and the regulation of real power and reactive power to given reference values without static errors.

The invention relates to a transmission mechanism overload protection device and belongs to the technical field of transmission devices. According to the device, power reflux is implemented through a gear shaft, a housing, a right half coupling, a left half coupling and a drive wheel shaft, and the motor power is returned to the drive wheel shaft through the gear shaft;when the drive wheel load is excessive, the power transmission between the drive wheel shaft and the motor is cut off through safety pin breaking, and the motor and the transmission mechanism are protected effectively. By means of the transmission mechanism overload protection device, transmission mechanism gearbox gears and the motor can be protected effectively, and the transmission system of entire experimental equipment can be protected; meanwhile, the axial size of the overload protection device is small, and occupied space of the experimental equipment is reduced; the transmission torque is large, and the modular design of the drive wheel shaft in the experimental system can be benefited by the power flux manner; the overload protection device is arranged outside the gearbox and is convenient to change, and system overload can be found conveniently.