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208 results about "Productivity gain" patented technology

Wind turbine with mixers and ejectors

InactiveUS20090097964A1Improving sustainable efficiency of wind turbineOperation efficiency can be improvedPump componentsEngine fuctionsHigh energyPopulated area
A Mixer / Ejector Wind Turbine (“MEWT”) system is disclosed which routinely exceeds the efficiencies of prior wind turbines. In the preferred embodiment, Applicants' MEWT incorporates advanced flow mixing technology, ejector technology, aircraft and propulsion aerodynamics and noise abatement technologies in a unique manner to fluid-dynamically improve the operational effectiveness and efficiency of prior wind turbines, so that its operating efficiency routinely exceeds the Betz limit. Applicants' preferred MEWT embodiment comprises: a turbine shroud with a flared inlet; a ring of stator vanes; a ring of rotating blades (i.e., an impeller) in line with the stator vanes; and a mixer / ejector pump to increase the flow volume through the turbine while rapidly mixing the low energy turbine exit flow with high energy bypass wind flow. Unlike gas turbine mixers and ejectors which also mix with hot core exhaust gases, Applicants' preferred apparatus mixes only two air streams (i.e., wind): a primary air stream which rotates, and transfers energy to, the impeller while passing through the turbine; and a high energy bypass flow or “secondary” air stream which is entrained into the ejector, where the secondary air stream mixes with, and transfers energy to, the primary air stream. The MEWT can produce three or more time the power of its un-shrouded counterparts for the same frontal area, and can increase the productivity of wind farms by a factor of two or more. The same MEWT is safer and quieter providing improved wind turbine options for populated areas.
Owner:FLODESIGN WIND TURBINE

Method for preparing radiator element with complicated shape

The invention relates to a method for preparing a radiator element with a complicated shape, which belongs to the technical field of powder metallurgy technology. The method is characterized by comprising the steps: the mixture of metal or ceramic powder and organic matters is used as a raw material, and the metal or ceramic powder and the organic matter are sufficiently mixed according to a volume ratio from 0.45 to 3.8; mixing is carried out for the mixture at the temperature from 110 DEG C to 145 DEG C for 40 minutes to 90 minutes, and the group components of the organic matters and metal or ceramic powder and the organic matters are sufficiently mixed and pelletized to obtain evenly mixed injection feeding materials; a preforming blank of the radiator element with microstructure is obtained by adopting a powder microinjection forming technology; a degreasing step is carried out through the dissolution of the organic matters in the solvent and the heat dissolving mechanism in a heating process to eliminate the organic matters; and then, the radiator element with the complicated shape is obtained by sintering function. The method overcomes the defects of lower efficiency of machine processing technology, waste of the raw materials and organization aliquation caused by casting and processing, accurately controls the organization, increases the production efficiency and greatly reduces processing cost.
Owner:UNIV OF SCI & TECH BEIJING

Shawl production chain

The invention provides a square towel production line, which relates to a sewing production line. The invention is to resolve the problems of manual production, low production rate and difficult quality guarantee existing in the prior production of square towel. A damp unreeling machine, a synchronous conveyor, a first double-head sewing device, a material taking conveyor and a conveyor are orderly arranged on the ground from the front to the rear along the longitudinal direction; a first transverse conveyor, a second double-head sewing device, a first middle conveyor, a first head cutting machine and a first material receiving machine are orderly arranged on the ground from the side end of the tail part of the conveyor along the transverse direction; a first sewing machine and a second sewing machine which are opposite to each other are fixedly arranged on a sewing machine rack platform; two beaders are fixedly arranged on the sewing machine rack platform respectively and on the front ends of the first sewing machine and the second sewing machine; a brander is fixed on the conveyor; and a first transverse material taking machine is arranged on a machine rack of the back end of the conveyor. The equipment of the invention has the advantages of harmonious operation and high automation, and improves the production rate by 5 to 6 times, simultaneously lowers labor intensity and ensures the quality.
Owner:张广生

Fixed-length segmenting and sawing production line

The invention relates to a fixed-length segmenting and sawing production line which comprises a feeding rack, a poking mechanism, a sawing machine, a conveying roller way, a discharging mechanism, a finished product collecting groove and a scrap collecting trolley, wherein the members are sequentially arranged members. The discharging end of the feeding rack is provided with a baffle, and a discharging inclined plate is arranged on the conveying roller way. The production line also comprises a shear gauge. Compared with a traditional sawing and segmenting production line, the poking mechanism and the shear gauge are adopted and a before-sawing conveying roller way is omitted in the invention. The sawing machine is frequently fed by a poking dental plate of the poking mechanism in a stepping mode so that the sawing machine has short waiting time, feeding time is shortened by about 7 s/time, the sawing production efficiency is improved more than twice, the floor area is reduced by one third that the traditional type, and the equipment investment is decreased. Since the sawing machine adopts the structure that a feeding mechanism and a clamping device are mounted on a fixed saw and a moving saw, the segmentation position of raw materials are not limited and can be randomly determined, and the raw materials can be segmented in any length so that the market requirements are better met.
Owner:天津市天铁轧二制钢有限公司

Wafer inspection method of charging wafer with a charged particle beam then measuring electric properties thereof, and inspection device based thereon

A semiconductor defect inspection device and method for detecting defects of partially finished substrates (semiconductor wafers) for semiconductor devices is provided. The substrate surface is irradiated with a charged particle beam and a voltage contrast image is obtained while the charged voltage is controlled at a desired level, and the electric resistances of the irradiated area from the image are calculated to detect a defect and identify the type of defect. Further, the distribution of electric resistances on the whole surface of the substrate can be quickly worked out. The charged particle beam irradiation conditions are varied in order to bring the charged voltage of the area to a desired value. With this device / method, electric resistances of small portions at desired charged voltages and the corresponding electric resistances are measured in a non-contact manner to determine the type of defect. When this inspection method is applied to the PCB manufacturing process, defects can be detected and remedied at an early stage of the process. Consequently, in the semiconductor devices and other PCB related devices, the defect rate decreases and the productivity increase. Since the defect occurrence rate is reduced, the reliability of semiconductor devices is increased, and the efficiency in developing new products is improved.
Owner:HITACHI LTD
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