278results about How to "Energy loss" patented technology

A system for providing wireless, charging power and/or primary power to electronic/electrical devices is described whereby microwave energy is employed. Microwave energy is focused by a power transmitter comprising one or more adaptively-phased microwave array emitters onto a device to be charged. Rectennas within the device to be charged receive and rectify the microwave energy and use it for battery charging and/or for primary power. A locator signal generated by the device to be charged is analyzed by the system to determine the location of the device to be charged relative to the microwave array emitters, permitting the microwave energy to be directly specifically towards the device to be charged. Backscatter detectors respond to backscatter energy reflected off of any obstacle between the device to be charged and the microwave array emitters. Power to any obstructed microwave array emitter is reduced until the obstruction is removed. Optionally, data can be modulated onto microwave energy beams produced by the array emitters and demodulated by the device, thereby providing means of data communication from the power transmitter to the device. Similarly, data can be modulated onto the locator signal and demodulated in the power transmitter, thereby providing means of data communication from the device to the power transmitter.

A linear light-emitting diode (LED)-based solid-state device comprising a curved surface to hold a flexible printed circuit board with multiple linear arrays of surface mount LEDs provides lighting applications with a broad viewing angle over 180° along the radial direction. On each of the two lamp bases of the lamp, a shock-protection switch is mounted to prevent shock hazard during re-lamping.

A sole mold for manufacturing a sole from a plurality of particles includes at least one first opening for supplying the particles, and at least two second openings for supplying a gaseous and/or liquid medium to bond and/or fuse the particles together. At least a portion of the sole mold is manufactured by an additive manufacturing method.

Disclosed herein are a number of example embodiments that employ controllable delays between successive ladar pulses in order to discriminate between “own” ladar pulse reflections and “interfering” ladar pulses reflections by a receiver. Example embodiments include designs where a sparse delay sum circuit is used at the receiver and where a funnel filter is used at the receiver. Also, disclosed are techniques for selecting codes to use for the controllable delays as well as techniques for identifying and tracking interfering ladar pulses and their corresponding delay codes. The use of a ladar system with pulse deconfliction is also disclosed as part of an optical data communication system.

Disclosed herein are a number of example embodiments that employ controllable delays between successive ladar pulses in order to discriminate between “own” ladar pulse reflections and “interfering” ladar pulses reflections by a receiver. Example embodiments include designs where a sparse delay sum circuit is used at the receiver and where a funnel filter is used at the receiver. Also, disclosed are techniques for selecting codes to use for the controllable delays as well as techniques for identifying and tracking interfering ladar pulses and their corresponding delay codes. The use of a ladar system with pulse deconfliction is also disclosed as part of an optical data communication system.

Disclosed herein are a number of example embodiments that employ controllable delays between successive ladar pulses in order to discriminate between “own” ladar pulse reflections and “interfering” ladar pulses reflections by a receiver. Example embodiments include designs where a sparse delay sum circuit is used at the receiver and where a funnel filter is used at the receiver. Also, disclosed are techniques for selecting codes to use for the controllable delays as well as techniques for identifying and tracking interfering ladar pulses and their corresponding delay codes. The use of a ladar system with pulse deconfliction is also disclosed as part of an optical data communication system.

Disclosed herein are a number of example embodiments that employ controllable delays between successive ladar pulses in order to discriminate between “own” ladar pulse reflections and “interfering” ladar pulses reflections by a receiver. Example embodiments include designs where a sparse delay sum circuit is used at the receiver and where a funnel filter is used at the receiver. Also, disclosed are techniques for selecting codes to use for the controllable delays as well as techniques for identifying and tracking interfering ladar pulses and their corresponding delay codes. The use of a ladar system with pulse deconfliction is also disclosed as part of an optical data communication system.

A device for compressing gas using thermal energy. In a subsonic embodiment the heat gas passes through a convergent pipe C1 where it is provided with operating velocity, a convergent pipe C2 where it is simultaneously maintained at high speed and cooled by evaporation of liquid sprayed by nozzles R with adjustable position distributed in C2. In a supersonic embodiment, the gas reaches sonic velocity at the throat of C2 and supersonic velocity in a divergent DG, then compressed in a convergent CG1 and simultaneously cooled by evaporation of sprayed liquid. In both embodiments, the gas is finally compressed in a subsonic divergent DG1. Pipes with variable geometry enable to modify the cross-sections of the throats of the device. The device is essentially designed for thermoelectric power stations.

A thermal energy storage and recovery system including a storage arrangement having a thermal energy storage device for temporarily storing thermal energy, a charging/discharging arrangement having a fluid energy machine for exchanging mechanical work with a working fluid cycling through the charging/discharging arrangement, and a heat exchanger which is arranged between the storage arrangement and the charging/discharging arrangement and which thermodynamically couples a heat transfer fluid cycling through the storage arrangement with the working fluid is provided. The storage arrangement is configured in such a manner that the heat transfer fluid is under a first pressure and the charging/discharging arrangement is configured in such a manner that the working fluid is at least partially under a second pressure, wherein the second pressure is higher than the first pressure.

A heat transfer engine having cooling and heating modes of reversible operation, in which heat can be effectively transferred within diverse user environments for cooling, heating and dehumidification applications. The heat transfer engine of the present invention includes a rotor structure which is rotatably supported within a stator structure. The stator has primary and secondary heat exchanging chambers in thermal isolation from each other. The rotor has primary and secondary heat transferring portions within which a closed fluid flow circuit is embodied. The closed fluid flow circuit within the rotor has a spiraled fluid-return passageway extending along its rotary shaft, and is charged with a refrigerant which is automatically circulated between the primary and secondary heat transferring portions of the rotor when the rotor is rotated within an optimized angular velocity range under the control of a temperature-responsive system controller. During the cooling mode of operation, the primary heat transfer portion of the rotor carries out an evaporation function within the primary heat exchanging chamber of the stator structure, while the secondary heat transfer portion of the rotor carries out a condenser function within the secondary heat exchanging chamber of the stator. During the cooling mode of operation, a vapor-compression refrigeration process is realized by the primary heat transfer portion of the rotor performing an evaporation function within the primary heat exchanging chamber of the stator structure, while the secondary heat transfer portion of the rotor performs a condenser function within the secondary heat exchanging chamber of the stator. During the heating mode of operation, a vapor-compression refrigeration process is realized by the primary heat transfer portion of the rotor performing a condenser function within the primary heat exchanging chamber of the stator structure, while the secondary heat transfer portion of the rotor performs an evaporation function within the secondary heat exchanging chamber of the stator. By virtue of the present invention, a technically feasible heat transfer engine is provided which avoids the need for conventional external compressors, while allowing the use of environmentally safe refrigerants. Various embodiments of the heat transfer engine are disclosed, in addition to methods of manufacture and fields and applications of use.

Disclosed is a lens for an LED outdoor lamp, and a road lamp, a security lamp, a tunnel lamp, a park lamp, a guard lamp, an industrial flood lamp, and an outdoor lamp using the lens. There is an advantage in that the shape of a light field can be a square shape by controlling light distribution. Brightness is very uniform within a available illumination range, and stray light is hardly generated outside of the range.

An instrument for measuring aberration refraction of an eye is provided, having: a lens system defining an instrument optical axis and an alignment device for aligning the visual axis of the eye with the instrument optical axis. A light source (1) produces a probing beam that is projected through the lens system parallel to the instrument optical axis and is selectably positionable partially off-set from the instrument optical axis for entering the eye (15) parallel to the instrument optical axis at a plurality of locations on the cornea of the eye. A photodetector (19) measures the position of probing beam light scattered back from the retina of the eye to measure aberration refraction of the eye at a plurality of locations.

An electronically controlled electrical power generator comprises a generator (15) driven by a heat engine (11), operated by control means (19), and carrying an electrical load (22). Operation of the heat engine (11) is at wide open throttle. Control over engine operation and electrical output of the generator (15) is achieved by electronically manipulating the electric load (22), and/or adjusting excitation levels at the generator's magnetic fields, so as to change engine/generator equilibrium speed. In a beneficial embodiment, the generator (15) is powered by an energy storage unit (21), to temporarily act as a motor and rotate the engine (11) when starting, and during power absorbing strokes. A method for controlling an unthrottled engine (11) including varying the gear ratio of a transmission connected between the mechanical output of the engine (11) and a mechanical load (22), to provide a torque load to the engine (11) to cause the engine (11) to move to an equilibrium speed at which its power output substantially meets a power output requirement. In a second embodiment, variance in the impedance of an AC generator (15) connected to the engine (11) provide a torque load to the engine (11) to control its equilibrium speed.

A high frequency circuit module for use in an automotive radar or the like, in which RF circuit parts are mounted on both sides of a hard multilayer dielectric substrate, and a transmission line connecting the RF circuit parts provided on both sides is constructed by a via group including a periodical structure or a via having a coaxial structure perpendicular to faces of the multilayer dielectric substrate. As the multilayer dielectric substrate, a hard multilayer substrate using metallic layers as a microstrip line wiring layer, a DC/IF signal line layer, and grounding metal layers for shielding which are disposed on and under the DC/IF signal line is employed. By using the transmission line achieved by a through via having the periodical structure or the through via having the coaxial structure, an electromagnetic wave propagating in parallel between the grounding conductors is confined.

A brush DC motor with reduction mechanism includes: a brush DC motor including a motor case, a stator section and a rotor section having a substantially cylindrical core, the stator section and the rotor section being received in the motor case; and a first reducing section drivable by the motor. The first reducing section includes a first sun gear, an external ring gear positioned around the sun gear and several planetary gears held between the external ring gear and the sun gear and engaged with the sun gear and the external ring gear. The first reducing section further includes a planetary carrier for locating the planetary gears in their true positions. Multiple parallel linear splines are formed on a circumference of the core at intervals. One end of the core with the splines formed on the circumference of the end serves as the sun gear of the first reducing section.

A Siemens type CVD reactor device is provided. One or more radiation shields are disposed between a rod filament and a cooled wall in the reactor. The radiation shield absorbs radiant heat emanating from the heated polysilicon rod during the CVD process, gets heated above 400° C., re-radiate the absorbed heat toward both of the polysilicon rod and the cooled wall, so as to provide thermal shielding effect to the cooled wall. The net energy loss of the polysilicon rod is reduced as much as the amount of energy emitted toward the polysilicon rod from the radiation shield, such that considerable amount of electrical energy of the CVD reactor is reduced and saved. The energy reduction rate goes up much higher if using multiple layered radiation shields, low shielding emissivity, and low thermal conductivity together. The purity of the manufactured polysilicon can be maintained by using thermal shielding material that is stable in a high temperature such as graphite, silicon carbide-coated graphite, and silicon.

According to one embodiment, during mixing of an N-channel input signal to generate an M-channel output signal, in at least one frequency sub-band, magnitude equalization is applied to the mixed channel signals such that an amplitude sum magnitude for the N input channels (e.g., the magnitude of a sum of estimated amplitudes of the N input channels) is approximately equal to an amplitude sum magnitude for the M output channels (e.g., the magnitude of a sum of estimated amplitudes of the M output channels). In one implementation, magnitude equalization is applied to one or more sub-bands (e.g., those below 1 kHz), and power equalization is applied to one or more other sub-bands (e.g., those above 1 kHz) to reduce coloration effects in the output signal.

An electronically controlled electrical power generator comprises a generator driven by a heat engine, operated by control means, and carrying an electrical load. Operation of the heat engine is at wide open throttle. Control over engine operation and electrical output of the generator is achieved by electronically manipulating the electric load, and/or adjusting excitation levels at the generator's magnetic fields, so as to change engine/generator equilibrium speed. In a beneficial embodiment, the generator is powered by an energy storage unit, to temporarily act as a motor and rotate the engine when starting, and during power absorbing strokes.

Electronic component supporting mediums includes dielectric support material having voids adapted to include the use of air as a dielectric, which is commonly used in printed circuit boards and electrical connectors. The support medium provides physical support to conductive connections and a mechanical structure to enable electrical connections between electronic components. Support structures including air as a dielectric can be provided in the form of printed circuit boards and electrical connectors. The printed circuit board of claim 16 wherein said dielectric material comprises a low loss material. The support medium can comprise a low loss material such as air, FR-4, Teflon material, and plastic.

A hydraulic pressure control device of a construction machine enabling an increase in operability and working efficiency by suppressing a fluctuation in flow rates occurring before and after the switching of a merging-separating valve, in energy efficiency by accurately determining the switching timing of the merging-separating valve to suppress the pressure energy loss of a pressure compensating valve, and working efficiency in the compound motion of plural hydraulic actuators. When a controller determines that necessary flow rates of first and second hydraulic actuators are less than maximum discharge flow rate of each of first and second variable displacement hydraulic pumps when the first merging-separating valve is in a merging position, the switching of the first merging-separating valve is controlled so that firstly the first merging-separating valve is switched to a separating position and, after the switching is completed, the second merging-separating valve is switched.