Product
Patsnap Eureka
For R&D, Patsnap Eureka makes reading and utilizing patents & technical documents easy.
Patsnap Eureka AIR
Designed for self-driven R&D workflows. Generate viable solutions, solve complex R&D challenges, empower your innovation with AI.
Patsnap Eureka Materials
Designed for material experts only. Revolutionize your material R&D, from search, analyze, to developing new materials.
Feature
TechResearch
Generate reliable direction feasibility study reports for your R&D in just a few steps.
TechSeek
Discover and master advanced knowledge NOW. Basics, ideas, possibilities, all at once.
TechMind
As an expert in R&D Theories, TechMind can generates customized viable solutions instantly.
TechRisk
Analyze your overall solution with one click, know your potential R&D risks in advance.
TechMonitor
Get weekly tech updates, stay abreast of the latest tech innovations and key insights.
Patents
Literature
Hiro is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
32results about How to "Large cavity volume" patented technology
Efficacy Topic
Property
Owner
Technical Advancement
Application Domain
Technology Topic
Technology Field Word
Patent Country/Region
Patent Type
Patent Status
Application Year
Inventor
Method for preparing hollow spheres through microwave-assisted aerosol
InactiveCN103949192AShort production cycleSimple and efficient operationMicroballoon preparationMicrocapsule preparationSolventMicrostructure
The present invention relates to the technical field of hollow sphere preparation, particularly to a method for preparing hollow spheres through a microwave-assisted aerosol. The method comprises: A, dispersing a hollow sphere shell precursor in a polar solvent, adding an ammonium salt to form a colloidal solution or true solution, ie., a precursor solution; B, carrying out atomization on the precursor solution prepared in the step A to form aerosol liquid droplets; and C, introducing the aerosol liquid droplets prepared in the step B into a microwave generator to carry out microwave irradiation to obtain the hollow sphere powder particles. According to the present invention, the hollow sphere powder preparation method has characteristics of short production period, simple operation, no pollution, easy scale-up and easy promotion application, wherein the microstructure of the prepared hollow sphere powder is not easily damaged.
Owner:临泉县嘉鸿装饰工程有限公司
Star amphipathic polyurethane and preparation method thereof
InactiveCN104774309ASmall toxicityRich sourcesPharmaceutical non-active ingredientsPolyesterPolymer science
The invention relates to star amphipathic polyurethane and a preparation method thereof. According to the technical scheme, the preparation method, which is performed at 50-100 DEG C in the presence of nitrogen gas under a stirring condition, comprises the following steps: adding polyester diol and diisocyanate into a non-proton solvent, stirring for 1-10 hours, then, adding methoxy polyethylene glycol and further stirring for 1-10 hours to obtain linear polyurethane prepolymer; and then, adding polyalcohol into the linear polyurethane prepolymer and further stirring for 1-7 hours to obtain the star amphipathic polyurethane. According to the star amphipathic polyurethane and the preparation method thereof, the raw material source is rich and the preparation process is simple; the prepared star amphipathic polyurethane has the characteristics of good biocompatibility, excellent biodegradability, relatively small critical micelle concentration and relatively high medicine-carrying capacity, and can achieve efficient, low-toxic and sustained-release effects while being used as a medicine carrier.
Owner:WUHAN UNIV OF SCI & TECH
Preparation method of biodegradable polymer microcapsules
ActiveCN102489230AAvoid damageGentle processPharmaceutical non-active ingredientsMicroballoon preparationPolymer scienceEmulsion
The invention relates to a preparation method of biodegradable polymer microcapsules. The method mainly comprises the following steps: preparing microspheres with openings, filling a capsule core material and sealing the openings of the microspheres. The biodegradable material microcapsules can be used to encapsulate micromolecular and bio-macromolecular substances and can also be used to load nanoscale and microscale particles. Compared with the traditional multiple emulsion embedding method, the method is milder so that bioactive substances are prevented from damaging; the residual capsule core material in the solution after embedding can be recycled; the method is more environmentally-friendly, the originally reported particle size and pore diameter can be realized, the volume of the inner cavity is larger so as to facilitate the loading of the capsule core material; and the method is suitable for mass production.
Owner:INST OF PROCESS ENG CHINESE ACAD OF SCI
Heater multi-pipe heat conducting type shell-tube water storage bearing heat interchanger and manufacturing technology thereof
ActiveCN103851936ASave Unicom pipe materialsSave materialHeat exchanger casingsStationary tubular conduit assembliesWater storageManufacturing technology
The invention provides a heater multi-pipe heat conducting type shell-tube water storage bearing heat interchanger and a manufacturing technology thereof. The heat interchanger comprises multiple round cold water pipes; head external blocking plates are welded at two ends of the round cold water pipes; heater pipe connecting blocking plates are welded in pipe openings at two ends of the round cold water pipes; round heater pipe connecting openings are formed on the heating pipe connecting blocking plates; pipe cavities are directly welded and communicated by the adjacent round cold water pipes through straight round cold water communicating pipes or butt-welded wall pulling pipes; at least one round heater pipe is penetrated into the cavity of each round cold water pipe; pipe openings of two ends of each round heater pipe are in welded connection with connecting openings of the round heater pipe on the heater pipe connecting blocking plates; round heater communicating pipes are in welded communication with the heater pipe connecting blocking plates or the round heater communicating pipes are sequentially welded and communicated with the head external blocking plates and are communicated with a thermal fluid shunting cavity to form a thermal fluid circulated heat transmission passage. The heat interchanging structure is more scientific and reasonable; the heat transmission area is improved by 55%-100%; the heat conduction rate is accelerated; the heat exchanging effect is excellent. The welding joints of the communicating pipes among the cavities are difficultly subjected to water leakage.
Owner:山东利能换热器有限公司
Thulium laser based on wavelength locked semiconductor laser module
InactiveCN106711760ACompact structureLarge cavity volumeLaser detailsLaser optical resonator constructionLine widthSemiconductor laser theory
The invention relates to a thulium laser based on a wavelength locked semiconductor laser module, and belongs to the technical field of laser. The thulium laser comprises a wavelength locked narrow linewidth semiconductor laser module, a pump light collimating and focusing module and a laser resonant cavity module. Semiconductor pump light is outputted to the pump light collimating and focusing module through the wavelength locked narrow linewidth semiconductor laser module and then outputted through the laser resonant cavity module. With application of the technical scheme, efficient output of the high-power Tm laser under the room temperature can be realized and the optical-to-optical conversion efficiency can be increased to 45%.
Owner:FUJIAN INST OF RES ON THE STRUCTURE OF MATTER CHINESE ACAD OF SCI
3D model internal hole digging type lightweight method based on function representation
ActiveCN111368477AImprove standing stabilityReduce designGeometric CADAdditive manufacturing apparatus3d shapesAlgorithm
The invention discloses a 3D shape internal hole digging type lightweight method based on function representation, and belongs to the field of computer aided design. The method comprises the followingsteps: firstly, expressing and exploring effective shape optimization analytical calculation by utilizing a function, then designing a stress structure of a 3D model by constructing an energy function model under given external condition constraints, modeling an object mass center, standing stability, tumbler design and suspension problems, and giving out a corresponding discretization form; andfinally, respectively carrying out geometric optimization on the modeling problems to obtain the internal shape of the optimized object under a given constraint condition. According to the method, thedesign and optimization period of the hole structure is greatly shortened, and a theoretically optimal result can be given. According to the method, the internal cavities of the obtained model are smoother and are not limited by the number of the cavities, the object model has a lower centroid, more materials are saved, and the consumed time in the aspects of design and optimization is shorter.
Owner:DALIAN UNIV OF TECH
Copper oxide-cobalt oxide co-doped alumina hollow sphere material and preparation method thereof
InactiveCN108686659AHigh specific surface areaLow priceHeterogenous catalyst chemical elementsMetal/metal-oxides/metal-hydroxide catalystsCobalt oxideIon
The invention discloses a copper oxide-cobalt oxide co-doped alumina hollow sphere material and a preparation method thereof, and belongs to the field of inorganic functional materials. The preparation method comprises following steps: dissolving cane sugar, aluminum nitrate nonahydrate, copper nitrate with 2.5 H2O molecules, and cobalt nitrate hexahydrate into deionized water, stirring for 30 to50 minutes at a room temperature to obtain a clear and transparent solution; transferring the transparent solution to a stainless steel reactor with a polytetrafluoroethylene inner container, carryingout hydrothermal reactions for 20 to 30 hours at a temperature of 180 to 200 DEG C to obtain a hydrothermal reaction product A; subjecting the A to suction filtration to obtain a black brown solid, washing the solid by deionized water and anhydrous ethanol for several times, drying the solid in vacuum for 5-8 hours at a temperature of 80-100 DEG C to obtain solid powder B; burning the B in a box-type resistance furnace for 5 to 8 hours at a temperature of 500-600 DEG C to obtain the copper oxide-cobalt oxide co-doped alumina hollow sphere material. The method has the advantages of simple andconvenient operation, green, environmental friendliness, and high yield. The morphology is easy to control. The provided material has a great application value in fields such as catalyst carriers, drug delivery, luminous materials, chemical sensors, ceramic, pigments, and the like.
Owner:SOUTH CHINA UNIV OF TECH
Round header shell and tube water storage heater multi-tube heat conducting heat exchanger and manufacturing process thereof
ActiveCN103542746AQuick releaseStrong connection and pressure resistanceSpace heating and ventilation detailsStationary tubular conduit assembliesVena contracta diameterPlate heat exchanger
The invention discloses a round header shell and tube water storage heater multi-tube heat conducting heat exchanger and a manufacturing process thereof. Two ends of a cold water round tube are communicated with a header body, the header body comprises a header inside semicircular orifice plate, a header outside semicircular plate and a header end cover plate, heater round tubes or combined heater round tubes are arranged in a cold water round tube cavity, the combined heater round tubes and / or the heater round tubes are communicated, a heater inlet joint and a heater outlet joint are communicated with inlet ends and outlet ends of the combined heater round tubes and / or the heater round tubes in a welded manner and then fixedly connected with the header outside semicircular plate, and a cold water inlet joint and a cold water outlet joint are welded on the header outside semicircular plate and communicated with an inner cavity of a header to realize circulation. The thin combined heater round tubes with manifolds for conducting heat, branching flow and converging ends are arranged in the cut-off middle of a heater tube, heat of a hot fluid center of the heater tube is promoted to be rapidly released from multi-tube dividing walls, and heat transfer area in the cold water tube cavity is increased by 45%-100%. By the aid of the reducing round tubes in communication, pressure resistance is high, and water does not easily leak.
Owner:山东利能换热器有限公司
Method for synthesizing ultrathin hollow sphere micron zinc aluminate in one step by flame synthesis method
The invention discloses a method for synthesizing an ultrathin hollow sphere micron zinc aluminate in one step by a flame synthesis method. According to the method, an aqueous solution of Zn(NO3)2.6H2O and Al(NO3)3.9H2O serves as a precursor solution, nitrogen serves as carrier gas, the precursor solution is fed into a high-temperature plane flame area formed by ethylene, oxygen and the carrier gas in a jet flow atomization mode, and zinc aluminate is rapidly deposited on a cooling substrate through the extremely large temperature gradient between high-temperature flame and a collecting plateunder the flame. The ultrathin hollow sphere micron zinc aluminate synthesized by the method is thin in sphere wall and large in middle cavity volume, has lower density and higher thermal resistance,and is suitable for the field of flame retardance and smoke abatement.
Owner:NANJING UNIV OF SCI & TECH
Preparation method of durable hydrophobic anti-reflection film for evacuated collector tube surface
The invention discloses a preparation method of a durable hydrophobic anti-reflection film for an evacuated collector tube surface. The method utilizes magnesium acetate tetrahydrate and hydrofluoricacid as raw materials to synthesize Mg(OH)2-xFx particle sol with a hollow rod structure by a solvothermal method, and then a hydrolysis product of Mg(OH)2-xFx and MTES is gelled through hydroxyl group condensation to obtain a CH3-SiO2-MgF2 composite particle sol. A layer of anti-reflection film is coated on the surface of glass with a light transmittance being 92% by a dipping and pulling method.After calcination at a temperature of 350 DEG C or lower, the obtained anti-reflection film has an average light transmittance of 98% or more in a visible light range and a contact angle of 133 degrees. After the anti-reflection film is irradiated for 1000 hours under 150W ultraviolet light, the average light transmittance can still be maintained 98% or more, and the contact angle can still be maintained a hydrophobic state of 120 degrees or above.
Owner:CHANGZHOU UNIV
A preparation method for durable hydrophobic anti-reflection film on the surface of vacuum heat collecting tube
ActiveCN108675648BLow refractive indexWith roughnessMagnesium Acetate TetrahydrateUltraviolet lights
The invention discloses a preparation method of a durable hydrophobic anti-reflection film for an evacuated collector tube surface. The method utilizes magnesium acetate tetrahydrate and hydrofluoricacid as raw materials to synthesize Mg(OH)2-xFx particle sol with a hollow rod structure by a solvothermal method, and then a hydrolysis product of Mg(OH)2-xFx and MTES is gelled through hydroxyl group condensation to obtain a CH3-SiO2-MgF2 composite particle sol. A layer of anti-reflection film is coated on the surface of glass with a light transmittance being 92% by a dipping and pulling method.After calcination at a temperature of 350 DEG C or lower, the obtained anti-reflection film has an average light transmittance of 98% or more in a visible light range and a contact angle of 133 degrees. After the anti-reflection film is irradiated for 1000 hours under 150W ultraviolet light, the average light transmittance can still be maintained 98% or more, and the contact angle can still be maintained a hydrophobic state of 120 degrees or above.
Owner:CHANGZHOU UNIV
Lobe pump
ActiveCN111742114AMoving out evenlyMoving out slowlyRotary piston pumpsRotary piston liquid enginesEngineeringLobe pump
The invention relates to a lobe pump having a) a housing (10), which has an inlet (11) and an outlet (12) for the medium to be pumped; b) at least one rotary piston (20), which is mounted driveably and rotatably in the housing (10) and which has at least two transport vanes (22) provided with a contour, which transport the medium to be conveyed from the inlet (11) to the outlet (12); c) and a sealing element (30) per rotary piston (20), which sealing element is mounted on a sealing body (42) and runs against the contour of the rotary piston (20) as the rotary piston (20) rotates and performs adeployment movement from a minimum diameter of the rotary piston (20) to a maximum diameter of the rotary piston (20) and a retraction movement from the maximum diameter of the rotary piston (20) tothe minimum diameter of the rotary piston (20) on different sides of the transport vanes (22), wherein d) the path covered by the sealing element (30) on the infeed side (221) of the transport vane (22) during the retraction movement is shorter than the path on the outfeed side (222) during the deployment movement.
Owner:BMA BRAUNSCHWEIGISCHE MASCHINBAUANSTALT AG
Muffler for large-displacement luxury motorcycles
InactiveCN103573334AReduce sound energyLarge cavity volumeSilencing apparatusMachines/enginesExhaust valveAcoustic energy
The invention discloses a muffler for large-displacement luxury motorcycles. The muffler is in a two-layer five-cavity structure divided into two upper cavities and three lower cavities by a partition. The muffler comprises double intake pipes, the partition, a housing, an insert pipe, a tail pipe, an exhaust valve and the like. The muffler allows noise under both high and low frequencies to be suppressed finely. The application of exhaust valve technology coordinates noise reduction and engine power. The tail pipe is provided with the exhaust valve which is manually turned on or off by a racing driver. The muffler has the advantages that the three expansion cavities, the two glass-wool-filled cavities and the insert pipe coordinate to reduce noise, and acoustic energy is reduced greatly; the cavities have large volume, and the muffler is applicable to large-displacement luxury motorcycles; the exhaust valve mounted on the tail pipe is manually controlled by the racing driver so that noise reduction adjustment and engine power adjustment are balanced.
Owner:东莞市旗丰消声器有限公司
Method for preparing carbon nano hollow polyhedron by using hydrothermal method
ActiveCN110963490AReduce energy consumptionInnovativeCarbon compoundsNanotechnologyChemical synthesisGraphite
The invention discloses a method for preparing a carbon nano hollow polyhedron by using a hydrothermal method and belongs to the field of nano graphite preparation. According to the method, a chemicalsynthesis method is utilized, pyrene with a benzene ring structure is taken as a raw material, a reaction is carried out under an alkaline condition and at a relatively low temperature, and a prepared reaction product is high in graphitization degree, the cavity volume is large, and the reaction product has potential characteristics of light weight and high strength. The method is low in energy consumption, short in consumed time and high in product quality, the adopted chemical synthesis method is completely different from the prior art, and innovation and novelty are achieved.
Owner:TSINGHUA UNIV
Oil return structure of compressor, compressor and air conditioner
PendingCN114857010AWon't add weightSmall sizeSealing arrangement for pumpsRotary piston pumpsOil canEngineering
The invention provides an oil return structure of a compressor, the compressor and an air conditioner, the oil return structure of the compressor comprises a static disc and a cover body, the end face, facing the cover body, of the static disc is provided with a first protrusion protruding towards the cover body, and / or the end face, facing the static disc, of the cover body is provided with a second protrusion protruding towards the static disc; the first protrusion is matched with the cover body, or the second protrusion is matched with the static disc, or the first protrusion is matched with the second protrusion so that a cavity used for exhausting and / or separating oil can be formed on the inner periphery of the protrusion, and the inner periphery of the cover body and the outer periphery of the protrusion jointly define an oil storage cavity used for storing oil. The oil storage cavity is located on the radial outer side of the exhaust and / or oil distribution cavity. Through the effective design on the static disc and the cover body, the space of the static disc and the cover body is effectively utilized, so that the oil storage cavity is effectively formed on the basis of not increasing the axial and radial sizes of the compressor, and the weight and the size of the compressor are not increased while the oil storage volume of lubricating oil is increased.
Owner:GREE ELECTRIC APPLIANCES INC
A method for preparing carbon nano-hollow polyhedron by hydrothermal method
ActiveCN110963490BReduce energy consumptionHigh degree of graphitizationCarbon compoundsNanotechnologyChemical synthesisGraphite
The invention discloses a method for preparing a carbon nano hollow polyhedron by using a hydrothermal method and belongs to the field of nano graphite preparation. According to the method, a chemicalsynthesis method is utilized, pyrene with a benzene ring structure is taken as a raw material, a reaction is carried out under an alkaline condition and at a relatively low temperature, and a prepared reaction product is high in graphitization degree, the cavity volume is large, and the reaction product has potential characteristics of light weight and high strength. The method is low in energy consumption, short in consumed time and high in product quality, the adopted chemical synthesis method is completely different from the prior art, and innovation and novelty are achieved.
Owner:TSINGHUA UNIV
Round header shell-and-tube water storage heating multi-tube heat conduction heat exchanger and its manufacturing process
ActiveCN103542746BQuick releaseStrong connection and pressure resistanceSpace heating and ventilation detailsStationary tubular conduit assembliesVena contracta diameterHeat conducting
The invention discloses a round header shell and tube water storage heater multi-tube heat conducting heat exchanger and a manufacturing process thereof. Two ends of a cold water round tube are communicated with a header body, the header body comprises a header inside semicircular orifice plate, a header outside semicircular plate and a header end cover plate, heater round tubes or combined heater round tubes are arranged in a cold water round tube cavity, the combined heater round tubes and / or the heater round tubes are communicated, a heater inlet joint and a heater outlet joint are communicated with inlet ends and outlet ends of the combined heater round tubes and / or the heater round tubes in a welded manner and then fixedly connected with the header outside semicircular plate, and a cold water inlet joint and a cold water outlet joint are welded on the header outside semicircular plate and communicated with an inner cavity of a header to realize circulation. The thin combined heater round tubes with manifolds for conducting heat, branching flow and converging ends are arranged in the cut-off middle of a heater tube, heat of a hot fluid center of the heater tube is promoted to be rapidly released from multi-tube dividing walls, and heat transfer area in the cold water tube cavity is increased by 45%-100%. By the aid of the reducing round tubes in communication, pressure resistance is high, and water does not easily leak.
Owner:山东利能换热器有限公司
Dynamic controller of hinge-free aircraft
InactiveCN102107730BSmall weightLarge cavity volumeAircraft controlWithout power ampliicationAngle of incidenceFuel oil
The invention discloses a dynamic control mechanism of a hinge-free aircraft. A jet mechanism is positioned in a closed jet cabin in an aerofoil. A transmission mechanism and a motor are positioned in the aerofoil and out of the jet cabin; and the motor drives a rotating plate of a jet mechanism to move up and down through the transmission mechanism. An upper skin and a lower skin of the aerofoil are provided with a jet seam and an air suction seam. The jet cabin consists of an upper compartment and a lower compartment which are partitioned. The motion of the rotating plate enables the compartments to form two strokes of 'air suction' and 'air exhaust', and low-frequency high-speed airflow is generated through the air suction seam and the jet seam, so that pneumatic load distribution on the aerofoil is changed, and a pneumatic force required by dynamic control of the aircraft is generated. The dynamic control mechanism has large cavity volume and high air compression amount; high synthetic jet velocity can be generated under low driving frequency, good effect is achieved at a small angle of incidence, and flying weight and fuel oil consumption are reduced; and the dynamic control mechanism has the characteristics of simple structure and reliable start and operation, and can meet the requirement of dynamic control of the aircraft under different flying conditions.
Owner:NORTHWESTERN POLYTECHNICAL UNIV
A columnar hydraulic tappet and its plunger preparation method
ActiveCN104131852BUniform wall thicknessLarge cavity volumeValve arrangementsMachines/enginesGroove widthEngineering
The invention discloses a columnar hydraulic tappet, which has a shell, and a plunger which moves axially relative to the shell is correspondingly installed in the inner cavity of the shell, and a first annular groove is arranged under the head of the plunger. There is a second ring groove in the middle of the plunger, the middle wall of the plunger is between the first ring groove and the second ring groove, and the second ring groove is a concave wide ring groove, which is characterized in that the middle wall of the plunger At least one oil inlet hole communicating with the second annular groove is opened on the upper part, and a sealing band is left on the upper part of the middle wall of the plunger for cooperating with the inner cavity of the housing to block the circulation of the hydraulic medium. The position of the plunger oil inlet hole relative to the one-way valve is raised to increase the oil storage capacity of the plunger oil storage chamber. When the engine is cold started, the abundant hydraulic medium can quickly replenish the high-pressure chamber in the one-way valve, shortening the hydraulic pressure. The time it takes for the column to recover from the compressed height to the normal working height, quickly eliminate the valve clearance, reduce the time for the cold start of the valve train to eliminate the noise and the wear of the corresponding parts.
Owner:HANGZHOU XZB TECH
Vehicle protection device convenient to maintain
InactiveCN108340861AGood function and effectEasy loading and unloadingFire rescueBumpersEngineeringMechanical engineering
Owner:太仓木利机械科技有限公司
A Lightweight Method of Digging Holes in 3D Models Based on Function Representation
ActiveCN111368477BImprove standing stabilityReduce designGeometric CADAdditive manufacturing apparatus3d shapesEngineering
The invention discloses a light-weight method for digging holes inside a 3D shape based on function representation, and belongs to the field of computer-aided design. First use the function to express and explore the effective shape optimization analytical calculation, and then under the given external conditions, through the construction of the energy function model to design the force structure of the 3D model, the center of mass of the object, the standing stability, the design of the tumbler and the levitation problem. Modeling, and the corresponding discretization form is given; finally, the geometric optimization of the above modeling problems is carried out respectively, and the internal shape of the optimized object is obtained under the given constraints. The invention greatly shortens the design and optimization cycle of this type of hole structure, and can provide the theoretically optimal result. The internal cavity of the model obtained by the invention is smoother, not limited by the number of cavities, the object model has a lower center of mass, more materials are saved, and less time is consumed in design and optimization.
Owner:DALIAN UNIV OF TECH
A method of microwave-assisted aerosol preparation of hollow spheres
InactiveCN103949192BAvoid breakingShorten the production cycleMicroballoon preparationMicrocapsule preparationSolventPollution
The present invention relates to the technical field of hollow sphere preparation, particularly to a method for preparing hollow spheres through a microwave-assisted aerosol. The method comprises: A, dispersing a hollow sphere shell precursor in a polar solvent, adding an ammonium salt to form a colloidal solution or true solution, ie., a precursor solution; B, carrying out atomization on the precursor solution prepared in the step A to form aerosol liquid droplets; and C, introducing the aerosol liquid droplets prepared in the step B into a microwave generator to carry out microwave irradiation to obtain the hollow sphere powder particles. According to the present invention, the hollow sphere powder preparation method has characteristics of short production period, simple operation, no pollution, easy scale-up and easy promotion application, wherein the microstructure of the prepared hollow sphere powder is not easily damaged.
Owner:临泉县嘉鸿装饰工程有限公司
A kind of preparation method of biodegradable polymer microcapsule
ActiveCN102489230BAvoid damageGentle processPharmaceutical non-active ingredientsMicroballoon preparationMicrosphereMacromolecular Substances
The invention relates to a preparation method of biodegradable polymer microcapsules. The method mainly comprises the following steps: preparing microspheres with openings, filling a capsule core material and sealing the openings of the microspheres. The biodegradable material microcapsules can be used to encapsulate micromolecular and bio-macromolecular substances and can also be used to load nanoscale and microscale particles. Compared with the traditional multiple emulsion embedding method, the method is milder so that bioactive substances are prevented from damaging; the residual capsule core material in the solution after embedding can be recycled; the method is more environmentally-friendly, the originally reported particle size and pore diameter can be realized, the volume of the inner cavity is larger so as to facilitate the loading of the capsule core material; and the method is suitable for mass production.
Owner:INST OF PROCESS ENG CHINESE ACAD OF SCI
A white LED light source with a blue chip packaged on the inner wall of a transparent ceramic fluorescent tube
ActiveCN105674225BImprove uniformityImprove thermal conductivityLighting heating/cooling arrangementsLight fasteningsHeat conductingHeat sink
The invention relates to a white LED (Light-Emitting Diode) light source of a transparent ceramic fluorescent tube packaged with blue chips on an inner wall thereof. The white LED light source is composed of the transparent ceramic fluorescent tube (1), a high transmittance packaging shell (2), an electrode (3), a cooling fin (4) and blue light-emitting bars (5), wherein the blue light-emitting bars (5) are adhered to the inner wall of the transparent ceramic fluorescent tube (1); the transparent ceramic fluorescent tube (1) is located right on the cooling fin (4) and placed in the high transmittance packaging shell (2); the high transmittance packaging shell (2) is inverselybuckled on the upper end face of the cooling fin (4); the electrode (3) is located under the cooling fin (4); one end of the electrode (3) is connected with the cooling fin (4) via a connection line and the other end of the electrode (3) is connection with an external power source. As the inner wall adhesion technology is adopted, the white LED light source is efficient and concise, the light emission is uniform; as the transparent ceramic fluorescent tube per se has excellent heat-conducting property and a big cavity volume is reserved between the transparent ceramic fluorescent tube and the high transmittance packaging shell, the heat dissipation effect is greatly improved. Since the remote excitation technology is adopted, the light emission is more uniform, the light diffusion loss is reduced and the light-emitting efficiency is improved.
Owner:XUZHOU NORMAL UNIVERSITY
rotary piston pump
ActiveCN111742114BMoving out evenlyMoving out slowlyRotary piston pumpsRotary piston liquid enginesEngineeringMechanical engineering
The invention relates to a rotary piston pump having: a) a housing (10) with an inlet (11) and an outlet (12) for the medium to be pumped; b) at least one rotary piston (20), It is mounted drivably and rotatably in a housing (10) and has at least two contoured transport wings (22) which transport the medium to be transported from the inlet (11) to the outlet (12); c) and the sealing element (30) of each rotary piston (20), which bears on the sealing body (42) and runs on the contour of the rotary piston (20) during the rotation of the rotary piston (20) And carry out on the different side of transport wing (22) carry out moving from the smallest diameter of rotary piston (20) to the maximum diameter of rotary piston (20) and from the maximum diameter of rotary piston (20) to rotary piston (20) The smallest diameter movement in, wherein, d) the path that the sealing element (30) carries out on the movement side (221) of the transport wing (22) during the movement in is smaller than the path carried out on the side (222) during the movement out .
Owner:BMA BRAUNSCHWEIGISCHE MASCHINBAUANSTALT AG
Preparation packaging method
InactiveCN105411845AEasy to squeeze outIncrease volumePharmaceutical containersMedical packagingNatural stateEngineering
The invention discloses a preparation packaging method. The preparation packaging method comprises steps as follows: two mutually attached soft films are softened; two corresponding sides of each soft film and the bottoms of the two soft films are connected in a sealing manner; mutually opposing acting force is applied to the middles of the two soft films, so that the middles of the two soft films are expanded outwards and deform, and a cavity with an opening in the top is formed; a preparation is filled into the cavity from the opening; the tops of the two soft films are connected in a sealing manner, and the opening is closed to seal the cavity. The soft films are expanded and formed by applying the acting force to the softened soft films, so that the volume, larger than that of a cavity formed in a natural state, of the cavity can be obtained, more medical solutions can be accommodated in the cavity, the volume of a film material in a unit area is increased to a certain extent, the utilization rate of the material is increased, and the production cost is reduced.
Owner:SHINVA MEDICAL INSTR CO LTD
Anti-collision structure for automobile
Owner:太仓木利机械科技有限公司
Preparation of multi-cavity carbon spheres by a self-assembly method driven by surface energy and its application
ActiveCN107265437BGuaranteed separationLarge cavity volumeNanotechnologyCarbon preparation/purificationHigh surfaceCavity size
The invention discloses a surface energy-driven self-assembly method for preparing multi-cavity carbon spheres and application thereof. The keys of synthesis are as follows: firstly, a nano emulsion droplet is prepared, or a Ludox is selected as a base unit; then, a polymer is pre-polymerized on the surface of the nano emulsion droplet or Ludox so as to obtain a small-size secondary structure unit with high surface energy; along with the proceeding of hydrothermal reaction, the free energy of the system is reduced to cause self-aggregation and assembly of secondary units to form an aggregate with a multi-cavity structure, and the size of each cavity and the number of cavities can be adjusted by virtue of the size of the nano emulsion droplet and the concentration of the polymer; and the multi-cavity polymer can be pyrolyzed in the space of an inert silica limited range to obtain multi-cavity carbon spheres with expanded cavity sizes. When the prepared multi-cavity carbon spheres are used as carriers, because of strong adsorption potential in the cavities, the internal cavity volume can be fully occupied and utilized by object species.
Owner:DALIAN UNIV OF TECH
A preparation filling machine
The invention discloses a preparation filling machine, which comprises a frame, on which a film-applying station, a heat-sealing station, a filling station, a sealing station, a modification station and an output station are successively installed. A film drawing station is also installed, and a preheating station for preheating and softening the two layers of the soft film is installed before the heat sealing station, and the heat sealing station also includes a preheating station for softening the two layers of the soft film The deformation device is a deformation device that exerts a mutually deviating force on the middle parts of the soft membranes to expand and deform the middle parts of the two layers of soft membranes outward. The soft film is softened by the preheating station, and the deformation device of the heat sealing station exerts force on the softened soft film to make the soft film expand and form, which can obtain a larger cavity volume than the natural state molding, and accommodate More liquid medicine, to a certain extent, increases the volume per unit area of the membrane material, improves the utilization rate of the material, and reduces the production cost.
Owner:SHINVA MEDICAL INSTR CO LTD
A capsule cylindrical microwave flash evaporation device for heavy metal wastewater treatment
ActiveCN105481038BSimple structureSelectiveWater/sewage treatment by irradiationWater/sewage treatment by heatingLiquid wasteConcentration ratio
The invention relates to a capsule cylindrical microwave flash evaporation device used for heavy metal wastewater treatment and belongs to the technical field of heavy metal wastewater evaporation treatment. The device comprises a resonance cavity body, a microwave feed inlet, a waste liquid inlet, a waste liquid outlet, a flash evaporation nozzle and a waste liquid conveying pipeline. The resonance cavity body is composed of an upper metal cavity, a cylindrical waveguide pipe and a lower metal cavity. The upper metal cavity and the lower metal cavity are located at the upper end and the lower end of the cylindrical waveguide pipe. The microwave feed inlet is formed in the side face of the cylindrical waveguide pipe and is fixedly connected with the resonance cavity body in a sealed mode. The waste liquid inlet and the waste liquid outlet are formed in the top and the bottom of the resonance cavity body and are communicated with an inner cavity of the resonance cavity body. The flash evaporation nozzle is disposed in the resonance cavity body, and the waste liquid conveying pipeline is connected with the waste liquid inlet and the flash evaporation nozzle. The device has the advantages that the structure is simple, cost is low, coupling efficiency between the feed inlet and the flash evaporation cavity is high, the volume of the cavity is large, the concentration ratio of an area with large field strength is high, the Q value of the cavity is high, and microwave flash evaporation is environmentally friendly, quick, efficient and capable of saving energy.
Owner:熠谱(上海)半导体制造有限公司
Who we serve
- R&D Engineer
- R&D Manager
- IP Professional
Why Patsnap Eureka
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com