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96results about How to "Good cost advantage" patented technology

Cascaded h-bridge medium voltage drive, power cell and bypass module thereof

The present application relates to a cascaded H-Bridge medium voltage drive, a power cell, and a bypass module thereof, wherein the bypass module is configured for bypassing a major circuit module of the power cell, while the major circuit module comprises a fuse, a rectifier, a bus capacitor and an H-Bridge inverter, two points led from the H-Bridge inverter being configured as a first output end and a second output end; a bypass circuit comprises a first bridge arm and a second bridge arm; a point led from the first bridge arm is configured as a first input end of the bypass circuit, a point led from the second bridge arm is configured as a second input end of the bypass circuit, and the first input end is electrically connected with the first output end, the second input end is electrically connected with the second output end.
Owner:DELTA ELECTRONICS (SHANGHAI) CO LTD

Magnetic recording medium and magnetic recording and reproducing device

A magnetic recording medium including at least a disk substrate 1A, a magnetic recording layer 5 formed with a predetermined concavo-convex pattern on the disk substrate 1A, and a non-magnetic layer 6 filled into concave portions of the concavo-convex pattern, so as to have data track regions 20 and servo pattern regions 21. Due to the existence of concaves and convexes in the surface of each servo pattern region 21, the foregoing problem is solved. On this occasion, arithmetical mean deviation of the assessed profile Ra of the surface of each servo pattern region 21 is preferably not lower than 0.3 nm. The difference in surface level between each concave and each convex existing in the surface of the servo pattern region 21 is preferably not larger than 6 nm.
Owner:TDK CORPARATION

One-component acrylic ester matte core-shell emulsions with good anti-water-white performance and preparation method and application thereof

The invention relates to the technical field of organic macromolecular polymerization, aims to solve the problems that operation is difficult, storage is unstable, and the water resistance is poor due to the fact that overcoat varnish for conventional architectural coatings is subjected to extinction often by adding fumed silica or wax emulsion, and provides one-component acrylic ester matte core-shell emulsions with good anti-water-white performance and a preparation method and application thereof. The raw material components of the emulsions comprise alkyl methacrylate, alkyl acrylate, vinyl monomers without -COOH groups, vinyl monomers containing -COOH groups, organosilicone monomers, crosslinking monomers, a pH modifier, an emulsifier, an initiating agent and deionized water. The one-component acrylic ester matte core-shell emulsions are characterized in that after forming into films, the emulsions have a coarse structure with separated surface micro-phases through a core layer part along with the difference of the neutralization degree of the gadoleic acid functional monomer of 3-10 carbon atoms, and the emulsions with the different matte degrees are obtained. Water-based overcoat varnish prepared through the one-component acrylic ester emulsions has the advantages of good water-white resistance, storage stability, good weather resistance, low cost and the like.
Owner:佛山市顺德区巴德富实业有限公司

Method and apparatus for equalizing video transmitted over twisted pair cable

A apparatus and apparatus for compensating for video insertion loss due to transmission over long twisted pair cable lines is presented. Transmission of video over twisted pair cable is advantageous because of its superior cost advantage over coaxial cable. However, twisted pair cables have significant loss characteristics at the higher frequencies (i.e., broadband) compared to coaxial cables. At a transmitter station, the video signal is amplified in the high frequency region for possible skin effect losses thereby brute forcing the high frequency components to the receiving station. At the receiver station, the video signal is further compensated for diffusion line and skin effect losses. The total skin effect compensation applied in both the transmitter and receiver stations is such that the square root of frequency characteristics of skin effect losses is compensated for. Thus, at the receiving station, the high frequency compensation added at the transmitter to brute force the high frequency components to the receiving station may be removed if found excessive. Additionally, compensation is included to adjust for skew that may occur because of irregularities between the various twisted pairs used to transmit the individual video components. Non-minimum phase type filters are used to inject delay into the faster arriving signals so that they may coincide in phase with later arriving signals resulting in a true reproduction of the video.
Owner:RGB SYST INC

Platformized vehicle body control framework system

The invention discloses a platformized vehicle body control framework system which comprises adjustment of a vehicle body framework, construction of a vehicle body control platform and construction ofa vehicle body bus communication platform. The adjusted vehicle body framework comprises a vehicle body control box, a wireless receiving module, a ripple window anti-pinching module and an engine antitheft system module. A vehicle body CAN bus, a power CAN bus, an entertainment CAN bus, a new energy CAN bus and a chassis CAN bus interactively construct the vehicle body bus communication platformthrough an independent gateway. A keyless entry system, the wireless receiving module and the ripple window anti-pinching module of the vehicle body framework are all connected with the vehicle bodycontrol box through the vehicle body CAN bus. All control functional modules, such as vehicle backing radar, a rainfall sensor, front parking radar, atmosphere lamps, running water steering lamps andthe engine antitheft system module of a vehicle body jointly construct the vehicle body control platform. The vehicle backing radar, the rainfall sensor, the front parking radar, the atmosphere lamps,the running water steering lamps and the engine antitheft system module are connected with the vehicle body control box through an LAN bus.
Owner:JIANGLING MOTORS

Current detection device and method

The invention discloses current detection device and method. The device comprises a voltage detection circuit, an operational amplifier circuit and a microprocessor, wherein the voltage detection circuit is used for detecting voltage at two ends of each of at least three metal oxide semiconductor field effect transistors (MOSFETs) in a power inverter circuit of a driver; the operational amplifier circuit is used for respectively obtaining breakover current of a corresponding bridge arm of the power inverter circuit according to the voltage and the conduction resistance of each MOSFET and also for providing the sampled current obtained after amplification treatment to the microprocessor; the microprocessor is used for carrying out analog-to-digital conversion on the sampled current and then carrying out current reconstruction on the sampled current subjected to analog-to-digital conversion according to the space vector pulse width modulation (SVPWM) sector, so as to obtain at least three phases of output phase current of the driver. By adopting the current detection device and method, the current is detected by an inherent inverse MOSFET bridge arm, so that the hardware cost is saved, meanwhile, the same performance as the current sensor can be achieved, and the detection device has excellent cost advantage for a low-voltage vehicle driver and also has the beneficial effects of small power consumption, easy accomplishment of printed board layout and the like.
Owner:SHENZHEN HOPEWIND ELECTRIC CO LTD

Fluorescence detection system and cell analyzer

ActiveCN103091211AEasy to collectRealize the spectroscopic functionIndividual particle analysisOptical axisFluorescence
The invention discloses a fluorescence detection system and a cell analyzer adopting the fluorescence detection system. The fluorescence detection system comprises a fluorescence collection object lens, a spectroscope, a fluorescence transmission channel and a detector unit. The spectroscope comprises a first double-prism assembly comprising a first prism and a second prism. Parallel light aligned by the fluorescence collection object lens irradiates a first incident surface of the first prism. A second exit surface of the second prism is perpendicular to an optical axis of the fluorescence collection object lens. The first prism is arranged in a way so that incident parallel light is reflected by the first prism and the second prism, then is divided into multiple parallel lights which have different wavelengths and are parallel to the incident parallel light, and then exit from the second exit surface. The fluorescence detection system can flexibly satisfy wave band demands and is convenient for fluorescence collection in subsequent channels. The number of the fluorescence transmission channels can be flexibly adjusted according to actual requirements.
Owner:SHENZHEN MINDRAY BIO MEDICAL ELECTRONICS CO LTD +1

System and method for measuring wind speed and wind direction

The invention provides a system for measuring wind speed and wind direction. The system comprises a spherical shell which is smooth-faced, wherein 6 pressure measuring holes are formed in the spherical shell uniformly; one pressure sensor is arranged at the inner side of the each pressure measuring hole; and each pressure sensor is in sealed connection with the corresponding pressure measuring hole so as to isolate the pressure measuring hole from an inner chamber of the spherical shell. The system and method for measuring wind speed and wind direction utilize the integrated and spherical surface uniform distribution type sensing system, and can realize accurate determination of wind speed and wind direction by means of the technology that tests pressure intensity distribution of different points on the surface of the sphere in an air flow field.
Owner:SOUTHEAST UNIV

Firework cylinder material and preparation method thereof

The invention discloses a firework cylinder material which is prepared from the following components in percentage by mass: 20-55% of plant fiber, 0-15% of reinforcing fiber, 1-5% of fiber finishing agent, 25-39% of air hardening material, 0.1-2% of catalyst, 5-25% of filler, 0-2% of lubricant, 0-2% of water-condensing agent, 5-15% of toughener and 0-5% of foaming agent, wherein stabilizer accounts for 2-15% of the total mass of the formula. The invention also discloses a preparation method of the firework cylinder material. The technical scheme can completely replace the traditional firework cylinder production mode, and is high in processing operability, high in molding speed and easy to realize large-scale stable production; and meanwhile, the raw materials are abundant, easy to acquire and low in cost. Besides, the produced firework cylinder can achieve qualified mechanical strength and favorable physical / chemical stability, causes no environmental pollution and can be degraded naturally.
Owner:汤华荣 +1

Pipe repair clamp

ActiveUS20040100091A1Reduce diametrical flexibilityAvoid squeezingSnap fastenersSleeve/socket jointsCouplingShoulder Support
The present invention relates to a repair clamp providing an improved pipe repair clamp. The clamp according to the invention could be used in some cases as a coupling to join two pipe ends. The clamp comprises; a) a metal clamping band to surround 3600 of a pipe. The band being extended at both ends to form a hollow shape including a flat base, a wedge-shaped section and a convex rounded section, elongated apertures being provided to allow passage for screw fasteners through the hollow shape, narrow edges of the wedge-shaped sections being in contact with each other to form a substantially triangularly shaped space between the formed ends; and a flexible inner sealing sleeve disposed inside the clamping band and a pair of profile strips each having a major face for contacting the outer surface of the convex rounded section, and an opposite seating face for shoulder support of a plurality of screw fasteners, the strips having apertures to allow passage of the fasteners, and a plurality of screw fasteners inserted into the apertures wherein the tightening of said screw fasteners reduces the size of the triangularly shaped space and tightens the metal clamping band to compress the flexible inner sleeve sealingly against the outer diameter of the pipes.
Owner:KRAUSZ INDS DEVMENT

Adjacent channel interference elimination device and method

The invention relates to an adjacent channel interference elimination device and a method thereof for transmitting television signals, wherein the adjacent channel interference elimination device comprises a power detection unit, an interference elimination unit, a frequency shifter and a filter, wherein the power detection unit is used for detecting power of the television signals and judging whether adjacent channel signals cause strong adjacent channel interference on useful signals or not; the interference elimination unit comprises a frequency shifter and a filter; the frequency shifter is used for shifting the frequency of the television signals according to the power bandwidth of the filter when the power detection unit detects the adjacent channel signals which cause strong adjacent channel interference and for moving the adjacent channel signals which cause strong adjacent channel interference in the television signals to a stop band position beyond the power bandwidth of the filter; and the filter is used for filtering the adjacent channel signals at the stop band position according to frequency shifting results. The adjacent channel interference elimination device and the method thereof provided by the invention can eliminate the adjacent channel interference effectively with simple structure and lower computation complexity, and therefore, a receiver can obtain good-quality television signals.
Owner:ZHANGJIAGANG KANGDE XIN OPTRONICS MATERIAL

Pre-installation assembly for a contact arrangement of a sensor assembly

The invention relates to a pre-installation assembly for a contact arrangement of a sensor assembly, having a support component, a clamping component, and at least one spring contact pin. The conductive end areas of the at least one spring contact pin are connected with one another and are designed to be axially incompressible and held under an axial spring load between support surfaces that are at a distance from one another. According to the invention, the support component and the clamping component are connected with one another by way of a connection in which the at least one spring contact pin is positioned and held by way of aligned guides in the support component and in the clamping component, with the spring contact pin passing through the guides. In first end section of the at least one spring contact pin is axially supported in the associated guide of the support component, and a second end section of the at least one spring contact pin is axially supported in the associated guide of the clamping component.
Owner:ROBERT BOSCH GMBH

High-physical-property matte thermoplastic polyurethane elastomer and preparation method thereof

ActiveCN108102347AImprove the disadvantages of reduced physical properties and poor matte effectGood matte effectAntioxidantThermoplastic polyurethane
The invention discloses a high-physical-property matte thermoplastic polyurethane elastomer and a preparation method thereof. The high-physical-property matte thermoplastic polyurethane elastomer is prepared from the following ingredients in percentage by mass: 80 to 95 percent of thermoplastic polyurethane elastomer, 2.5 to 19 percent of high impact polystyrene, 0.5 to 2 percent of matte surfaceregulating agents, 0.1 to 0.5 percent of modified silicone master batch, 0.1 to 0.5 percent of antioxidant and 0.1 to 0.5 percent of lubricating agent. Compared with the prior art, the high-physical-property matte thermoplastic polyurethane elastomer has the advantages that the matte surface effect is good; the cost is lower; the defects of material physical property reduction due to the use of inorganic matte surface agent and poor matte surface effect are avoided; the defect of higher cost due to the use of other organic macromolecular material matte surface agents is avoided; in addition, the processing process can be regulated according to practical requirements to obtain the ideal matte effect.
Owner:ZHEJIANG HUAFENG THERMOPLASTIC POLYURETHANE

High-temperature resistant modified silicon-containing cyanate ester resin as well as preparation method and application thereof

The present invention relates to a high-temperature resistant modified silicon-containing cyanate ester resin as well as a preparation method and an application thereof. The preparation method comprises the following steps: adding a mixed solution of hydroxyl silicone oil, a silane coupling agent and an organic solvent into a mixed solution of a tetramethylammonium hydroxide aqueous solution and a polar solvent, performing hydrolytic polycondensation at a temperature of 5-40° C. for 4-8 h, and performing distillation to obtain an epoxy-containing silsesquioxane; performing pre-polymerization on the epoxy-containing silsesquioxane and a cyanate ester resin at a temperature of 50-100° C. for 1-8 h to obtain a modified cyanate ester resin; and uniformly mixing the modified cyanate ester resin and a modified anhydride, thereby obtaining the high-temperature resistant modified silicon-containing cyanate ester resin.
Owner:SUZHOU TAIHU ELECTRIC ADVANCED MATERIAL CO LTD

Preparing method of magnetic carbon composite adsorption material

The invention provides a preparing method of a magnetic carbon composite adsorption material. A substance containing nitrogen and a carbon material are subjected to ultrasonic dispersion into a solvent to obtain a mixed suspension liquid, a magnetic material precursor is added into the suspension liquid, the mixture is heated to 30-120 DEG C after being subjected to full dispersion under an ultrasonic condition, the mixture is stirred for 1-8 h, and separation and drying are conducted to obtain mixture powder; then the mixture powder is fully grinded after being treated at high temperature of 120-900 DEG C for 0.5-8 h under the protection of inert gases, and the mixture powder is screened through a 20-300 mesh screen, so that the magnetic carbon composite adsorption material is obtained. The magnetic carbon composite adsorption material prepared through the method has the advantages of being low in cost, good in adsorption performance, high in adsorption efficiency, high in recyclable utilization frequency and the like, is short in consumption time in wastewater treatment and extremely easy to precipitate after being dispersed in water, and can be repeatedly used through simple treatment after being recycled, moreover, the adsorption performance is not drastically lowered, and thus the method has very high economic value in wastewater treatment.
Owner:LANZHOU JIAOTONG UNIV

Process of preparing short glass fiber with waste tank furnace filament

The process of preparing short glass fiber with waste tank furnace filament includes the following steps: initial treatment of waste tank furnace filament; compounding adhesive via diluting adhesive with water for spraying; spraying adhesive to waste tank furnace filament or soaking waste tank furnace filament in adhesive and stilling for well absorbing adhesive; forming short glass fiber through cutting, sieving and roasting. The present invention produces useful material with waste and has low production cost.
Owner:林军

Multi-row single-base-island lead wire framework with glue locking holes and SOT33-5L encapsulation element thereof

The invention discloses a multi-row single-base-island lead wire framework with glue locking holes and an SOT33-5L encapsulation element thereof, and belongs to the technical field of electronic device manufacturing semiconductor encapsulation. The dimension of an arranged base island is matched with the dimension of a chip; the bonding distance of the chip and an inner lead pin is reduced; a relatively great current can be conducted; in addition, the heat generation quantity is small, so that the encapsulation requirement of chips which need relatively heavy current output can be met; meanwhile, the base island provided by the invention for carrying the chip is small; the structure is simple; the cost is low; in addition, the a wide lead pin and the base island are connected to form a heat conduction passage, so that the heat radiation of heat generation in the work process of the chip is better facilitated, so that the chip can work at a relatively low temperature. The single chip isbonded onto the base island of the lead wire framework; the glue locking holes are arranged in positions of two sides of the base islands and the connecting positions of the base islands and the inner lead pin; during the plastic encapsulation, the plastic encapsulation material penetrates through the glue locking holes, so that the firm combination of the plastic encapsulation material and the base island can be ensured; the stress can be released; the product reliability is improved.
Owner:TIANSHUI HUATIAN TECH

Portable memorizer and partitioned data protecting method

The invention provides a portable memorizer and a partitioned data protecting method thereof. The portable memorizer comprises an interface used for connecting with external equipment. The portable memorizer is characterized by also comprising a reading and writing control unit, a memory area selecting unit and a memory cell, wherein the memory cell comprises a personal memory area and a share memory area; the memory area selecting unit is used for receiving the identity of the current user and judging whether the current user is an authorized user or not; if so, the personal memory area is selected as the current memory area; if not, the share memory area is selected as the current memory area; and the reading and writing control unit is connected with the interface and the memory cell and is used for realizing the reading and writing operations of the current memory area. Based on the portable memorizer, the data sharing and the private data security protection can be simultaneously realized.
Owner:LENOVO (BEIJING) LTD

Cascaded H-Bridge medium voltage drive, power cell and bypass module thereof

The present application relates to a cascaded H-Bridge medium voltage drive, a power cell, and a bypass module thereof, wherein the bypass module is configured for bypassing a major circuit module of the power cell, while the major circuit module comprises a fuse, a rectifier, a bus capacitor and an H-Bridge inverter, two points led from the H-Bridge inverter being configured as a first output end and a second output end; a bypass circuit comprises a first bridge arm and a second bridge arm; a point led from the first bridge arm is configured as a first input end of the bypass circuit, a point led from the second bridge arm is configured as a second input end of the bypass circuit, and the first input end is electrically connected with the first output end, the second input end is electrically connected with the second output end.
Owner:DELTA ELECTRONICS (SHANGHAI) CO LTD

Corrosion-resisting insulation building material and preparation method thereof

The invention discloses a corrosion-resisting insulation building material and a preparation method thereof. The corrosion-resisting insulation building material comprises the following raw materials in parts by weight: 20-30 parts of expanded perlite, 10-15 parts of melamine resin, 9-15 parts of blast furnace slag, 15-20 parts of calcium magnesium phosphate, 3-10 parts of dolomitepowder, 5-18 parts of hydroxypropyl methyl cellulose, 7-18 parts of vegetable fiber powder, 4-10 parts of alumina silicate fiber cotton, 10-17 parts of rubber, 2-15 parts of a dispersant, 2-5 parts of an antiseptic, and 2-13 parts of an auxiliary filling material. The insulation building material has good insulation and flame retardation effects, increases the fireproof performance of a building material, realizes the energy-storage temperature-adjustment functions of the material, prevents indoor heat energy loss, and saves the energy.
Owner:合肥永泰新型建材有限公司

Fireproof heat insulation building material and preparation method thereof

The invention discloses a fireproof heat insulation building material and a preparation method thereof. The fireproof heat insulation building material comprises, by weight, 20-30 parts of expanded perlite, 9-15 parts of blast furnace slag, 15-20 parts of clay, 3-10 parts of dolomite powder, 5-18 parts of rubber, 7-18 parts of plant fiber powder, 4-10 parts of aluminum silicate fiber cotton, 10-17 parts of flame retardants, 2-15 parts of color master batches and 2-13 parts of auxiliary raw materials. The fireproof heat insulation building material has good effects of insulating heat and retarding flame, fire resistance of the building material is improved, energy storing and temperature adjusting functions of the material are achieved, indoor heat loss is prevented, and the heat insulation material takes the expanded perlite as a main raw material, so that the heat insulation material has the advantages that the material is light in apparent density, low in heat conductivity coefficient, good in chemical stability and free from toxicity and taste. The flame retardants of the building material are tetrabromobisphenol A which is one of flame retardant products subjected to the most scientific tests on the market and with the highest cost advantages.
Owner:合肥市晨雷思建筑材料科技有限公司

Turpentine-based vegetable oil and preparation method and application thereof

The invention discloses a turpentine-based vegetable oil and preparation method and application thereof, and relates to a vegetable oil. The vegetable oil consists of alkaline C1-C8 alcoholic solution, turpentine and vegetable oil which serve as raw materials, wherein the alkaline C1-C8 alcoholic solution is 10 to 30 percent of the total mass of the turpentine and vegetable oil; and the alkaline C1-C8 alcoholic solution is mixed liquor of at least one of C1-C8 alcohols and alkali metal hydroxides, and the mass ratio of the alkali metal hydroxides to the C1-C8 alcohols is 1:19-25, and the mass ratio of turpentine to vegetable oil is 1:1-4. The turpentine-based vegetable oil is prepared by the following steps of: adding the mixed liquor of at least one of C1-C8 alcohols and alkali metal hydroxides, and mixture of turpentine and vegetable oil into a high-shear emulsification dispersion kettle and separating and removing impurities from the product. The turpentine-based vegetable oil can be used for preparing pesticide preparations as a functional pesticide carrier and can substitute aromatic organic solvents, such as dimethylbenzene and the like.
Owner:FUJIAN NUODE BIOTECH

Composite metal calcium phosphate antibacterial agent, and preparation method and inorganic artificial stone thereof

The invention discloses a composite metal calcium phosphate antibacterial agent, a preparation method thereof and an inorganic artificial stone thereof. The composite metal calcium phosphate antibacterial agent comprises nano calcium phosphate, silver atoms and copper atoms; the nano calcium phosphate is prepared by taking modified nano calcium carbonate as a raw material; silver atom and copper atom colloids are adsorbed on the surface of the nano calcium phosphate; the silver atoms are used as an activating agent, and the copper atoms are used as an antibacterial agent to be activated. The composite metal calcium phosphate antibacterial agent disclosed by the invention contains various bactericidal and antibacterial substances, has a good broad-spectrum bactericidal effect and is not easy to lose. The composite metal calcium phosphate antibacterial agent prepared by taking nano calcium carbonate as the raw material has very excellent cost advantage, is suitable for large-scale industrial manufacturing, and has the advantages of being more environment-friendly and healthier. And the prepared inorganic artificial stone has a good antibacterial effect and meets the requirements of JC / T897-2014 Standards for Antibacterial Performance of Antibacterial Ceramic Products.
Owner:高时(厦门)石业有限公司

Fluorescence detection system used for cell analyzer

The invention discloses a fluorescence detection system used for a cell analyzer. The fluorescence detection system comprises an objective lens, an optical fiber, a concave mirror assembly, a cylindrical lens assembly, a spectroscope assembly, a band-pass filter assembly, a lens assembly, a detector assembly and the like. According to the fluorescence detection system disclosed by the invention, a multi-wavelength fluorescent signal is separated in space according to wavelength and is imaged on a detector in 1*magnification, and fluorescence analysis and determination are realized; the fluorescence detection system has the advantages of compact structure, small size, simple debugging and the like; and the wavelength and number of fluorescence during analysis and detection also can be flexibly adjusted according to the actual needs of customers.
Owner:上海厦泰生物科技有限公司

Hydrogen-containing silicone oil and preparation method thereof

The invention belongs to the technical field of polysiloxane synthesis, and particularly relates to hydrogen-containing silicone oil and a preparation method thereof. A molecular formula of the hydrogen-containing silicone oil is as shown in the specification, wherein n is 200-500; and R is CH3 or CH2CH3. The preparation method comprises the following steps: (1) adding a linear body to a reaction kettle, stirring, warming to 130-140 DEG C, and adding potassium hydroxide; (2) carrying out vacuum supply, and detecting the viscosity online, when the appointed viscosity is achieved, restoring into atmospheric pressure and adding phosphoric acid or silicon-based phosphate for neutralization; (3) cooling, adding methyldialkoxysilane and a catalyst, and carrying out stirred reaction; and (4) warming, carrying out vacuum supply and removing low molecules to obtain the hydrogen-containing silicone oil. The hydrogen-containing silicone oil provided by the invention can be used as an addition-type silicone rubber chain extender or is applied to the aspects of synthetic fabric finishing agents and the like; the linear body and the methyldialkoxysilane which is low in cost and easy to prepare are adopted as raw materials, so that the raw material cost is reduced.
Owner:SHANDONG DONGYUE ORGANIC SILICON MATERIAL

Friction element carrier for clutch

InactiveCN104895946ARadial flow strength or more uniformImprove stabilityFriction clutchesCouplingsRotational axisEngineering
A clutch is adapted to transmit torque.A carrier for a friction element of the clutch includes an axis of rotation, a radial portion and a radially outer axial portion adjacent thereto.The axial portion comprises a revolving around the rotational axis of the sheet metal part, extending alternately at different radii around the rotational axis to form an outer teeth for positive engagement in the friction element. In a region which lies on the larger radius, the sheet metal part is provided with an opening for the radial passage of a surrounding liquid and the sheet metal part bears radially inside a storage element for damming the surrounding liquid, wherein the storage element is the radial section with respect to the breakdown opposite.
Owner:SCHAEFFLER TECH AG & CO KG

Method for manufacturing isolation cavity compatible with semiconductor process and isolation cavity

The invention provides an isolation cavity manufacturing method compatible with a semiconductor process. The method comprises the following steps of: providing a cavity substrate, and forming a conductive layer on the substrate; etching the conductive layer and the substrate in turn, and forming grooves on the substrate; depositing protection layers with conductivity on the surface of the conductive layer and the side walls and the bottoms of the grooves; removing the protection layers on the surface of the conductive layer and the bottoms of the grooves, and forming side wall protection layers with conductivity on the side walls of the grooves; continuously etching the grooves by using the conductive layer and the side wall protection layers as masks to form deep grooves; corroding the deep grooves by a wet corrosion method to form a cavity in the substrate; and filling a filling material among the side wall protection layers of the grooves by an electroplating method to isolate the cavity from outside. The invention also provides an isolation cavity. The method belongs to a front side process and is compatible with the semiconductor process; the implementation mode is simple, and wafer thickness after the cavity is formed is greatly reduced; and manufacturing cost can be reduced, the cavity has a good cost advantage, and the method is matched with the miniaturization trend of a device.
Owner:ADVANCED SEMICON MFG CO LTD

Silk style high-count strong twisted shell fabric and processing technology thereof

The invention discloses a silk style high-count strong twisted shell fabric and a processing technology thereof. For the shell fabric, warp yarn adopts R9.8tex of 1600 twists / meter, and the ratio of S to Z is 2:2; the weft yarn adopts R9.8tex of 1800twists / meter, and the ratio of S to Z is 2:2; the warp density of fabric is 275.5 / 10cm, the weft density of the fabric is 275.5 / 10cm, and the breadth is 175cm. For the processing technology of the silk style high-count strong twisted shell fabric, special technologies are adopted in working procedures, such as yarn selection, yarn sizing, slashing, weaving, dyeing and finishing and the like. The silk style high-count strong twisted shell fabric has the benefits of good hand feeling, long-lasting rebound resilience, dropping feeling, glossy feeling, smooth feeling and skin-friendly silk style, and excellent product cost advantage, and the cost is lowered by 17.34% if being compared with that of the similar product. On the technology, the twisting curve of the yarn is concluded by the contrast test of the yarn twist, the optimal twist and breaking force point can be found, and a reference is provided for the production and the experiment of the similar product.
Owner:TIANJIN TIANFANG INVESTMENT HLDG

Device and method for concentrating and recycling anaerobic acid-producing kitchen waste fermentation solution

The invention discloses a device and a method for concentrating and recycling an anaerobic acid-producing kitchen waste fermentation solution. The method comprises a treatment chamber, and two layersof positive osmosis membranes which are mounted inside the chamber and are parallel to the chamber wall, wherein a driving solution passage is formed between the two layers of positive osmosis membranes; a fermentation solution passage is formed between each of the positive osmosis membranes on the two sides and the chamber wall. Through a positive osmosis membrane principle and a unique design ofa membrane assembly, the concentration of the recycled and concentrated anaerobic acid-producing kitchen waste fermentation solution can be greatly increased and the long-distance transportation costof the anaerobic acid-producing fermentation solution can be reduced. Through the device and the method, the anaerobic acid-producing fermentation solution is recycled and concentrated as a good denitrifying and dephosphorizing organic carbon source for resource utilization, so that the purpose of ectopically applying the anaerobic acid-producing fermentation solution to a domestic sewage treatment plant, an industrial sewage station, a landfill leachate treatment station and the like is achieved.
Owner:ZHEJIANG NORMAL UNIVERSITY

Vehicle fuel gauge calibration method and device, storage medium and electronic equipment

The invention discloses a vehicle fuel gauge calibration method. The method comprises the steps: obtaining the resistance change maximum value of a fuel sensor when a vehicle is on a flat road and ona preset slope; when the vehicle is stopped and powered off, determining a first resistance value corresponding to the remaining fuel quantity of the vehicle; when the vehicle is started and powered on, obtaining a second resistance value actually measured by the fuel quantity sensor; judging the relationship between the absolute value of the difference value between the first resistance value andthe second resistance value and the resistance change maximum value: when the absolute value of the difference value is greater than the resistance change maximum value, controlling the vehicle fuelgauge to display the fuel quantity value corresponding to the second resistance value; when the absolute value of the difference value is smaller than or equal to the resistance change maximum value,controlling the vehicle fuel gauge to display a fuel quantity value corresponding to the first resistance value; according to the scheme, the adverse effect of the gradient on display of the fuel gauge during ramp parking is overcome; meanwhile, the situation that when an oil adding and leaking event exists in the oil tank, the oil gauge misjudges that the oil tank is stopped on a slope, and consequently the oil gauge displays mistakenly is avoided.
Owner:DONGFENG MOTOR CORP HUBEI
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