182results about How to "Increase ejection speed" patented technology

The invention discloses a three-level acceleration type spiral plasma propulsion device. The three-level acceleration type spiral wave plasma propulsion device is characterized in that an antenna is connected with an RF (Radio Frequency) power source, the antenna and a discharge chamber are fixedly arranged in a sleeve, and an electromagnetic coil is fixedly arranged on the outer circumferential surface of the sleeve in a surrounding way; the rear part of the discharge chamber is provided with a rotating electric field ion acceleration system, and the rotating electric field ion acceleration system comprises four graphite electrodes which are uniformly and symmetrically arranged on the outer circumferential surface of the sleeve; the tail end of the rotating electric field ion acceleration system is provided with an electromagnetic spray pipe ion acceleration system, and the electromagnetic spray pipe ion acceleration system comprises a conical expanding spray pipe of which one end is connected with the tail part of the discharge chamber, and the electromagnetic coil. According to the three-level acceleration type spiral plasma propulsion device disclosed by the invention, the rotating electric field acceleration system is adopted for carrying out secondary acceleration on a plasma, acceleration is further carried out through the electromagnetic spray pipe, and a three-level acceleration effect is formed, thus the thrust is generated by efficiently accelerating ions, the work of a propulsor under high power can be realized, the reliable performance of high ion ejecting speed and high propulsion capacity can be realized, wide application prospect is obtained, and a high-performance power platform can be provided for future space technology development.

A liquid ejection head has an element substrate on which a plurality of heaters for generating energy for ejecting liquid droplets are disposed, a nozzle forming member laminated on the main surface of the element substrate and including a plurality of nozzles each having an ejection port for ejecting liquid droplets, a bubble forming chamber in which bubbles are formed by a heater, and a supply path for supplying liquid from a supply chamber to the bubble forming chamber. The nozzle forming member has a portion located in the vicinity of the heaters on the supply path side where the height of the nozzles is reduced, whereby the height of the nozzles changes toward the supply chamber.

A process of controlling the thickness profile of a blown tubular film, consisting of thermoplastic plastics, around the circumference of same when producing blown film by means of blown film extruders, having a film extrusion die, wherein a measuring device measures the film thickness of the tubular film around the circumference and wherein a control device variably controls the cooling gas flow as a function of the measured film thicknesses around the circumference in sectors, wherein cooling gas flows are supplied from the outside in the direction of production in two separate planes, and wherein the cooling gas flows are controlled variably and in circumferential sectors around the circumference in the two planes in respect of their physical parameters.

The invention discloses pulping equipment used for paper making on the basis of a Bernoulli principle. The pulping equipment comprises a base, a hydraulic pump station, a lifting device, a cantilever beam and a dispersing bucket, wherein the left side of the base is provided with the hydraulic pump station; the middle of the base is provided with the lifting device; the top of the lifting device is provided with the cantilever beam; the cantilever beam is provided with a power device; the right end of the cantilever beam is provided with one pair of first bearings; a spindle is installed in each bearing and is connected with the power device; the lower part of each spindle is positioned in the dispersing bucket which is positioned on the base. The pulping equipment has the beneficial effects that the dispersing bucket is used for improving paper pulp ejection speed, so that paper pulp has certain speed so as to improve a dispersion effect. In addition, the lifting device can be used for regulating the height of the cantilever beam so as to change the positions of the spindles in the dispersing bucket to bring convenience in installation. The pulping equipment has the advantages of reasonable structure design, convenience in use, good dispersing effect and the like and can be widely applied in a paper making field and other dispersion fields.

A spraying head assembly has a tubular body, a cap, an upper plug, a lower plug and a spring. The cap is attached to the body and has a spraying channel, a conical cavity and a spraying hole. The conical cavity is defined inside the cap and communicates with the spraying channel and the spraying hole. The upper plug is held in the body and comprises a spraying end, a connecting end, a head and shaft. The head has a recess communicating with the spraying channel having a conical bottom. Multiple passages are defined in the head and communicate with the recess. The lower plug is mounted movably in the chamber in the body and is connected to the upper plug using the spring. In this arrangement, a liquid supplied to the connecting end forms vortexes in the body to reduce particles of liquid nebulization and raise ejection speed and therefore distance.

Disclosed herein are a crustal core sampler, by which a crustal core sample can be cored in a state coated with a flow-able coating material free of any contamination, and a method of coring a core sample using this crustal core sampler. The crustal core sampler comprises a drilling mechanism and a barrel, wherein the barrel is equipped with a flow-able coating material-ejecting mechanism, and a columnar crustal core portion is coated with a flow-able coating material. Alternatively, the crustal core sampler is constructed by a drill pipe and an inner barrel, wherein the inner barrel is equipped with an inner barrel body, a core elevator, a channel-forming member for forming a flow-able coating material-running channel and flow-able coating material-ejecting openings, and a columnar crustal core portion is coated with a flow-able coating material.

A data transferring apparatus has an ASIC (Application Specific Integrated Circuit), and the ASIC incorporates an interface unit, a head controlling unit, a receiving buffer unit and a DECU, which are coupled to be capable of transferring data. The DECU incorporates a development processing controller having a decode circuit for performing hardware development on compressed recording data, and a line buffer storing developed recording data. The DECU and the head controlling unit are coupled by an internal bus IB in order to perform data transfer.

The invention discloses an adherence air device for preventing high-temperature corrosion of a water cooling wall of a refuse burning boiler. The adherence air device comprises an adherence air box and an adherence air nozzle, wherein one end of the adherence air box is connected with the adherence air nozzle; the other end of the adherence air box is connected with an air pipe; the adherence air nozzle comprises a nozzle fin, a front baffle, a bottom baffle, a water cooling wall pipe and a water cooling wall fin; the front baffle is composed of an inlet baffle, a reducing baffle and an outlet baffle; a blowing slit is formed on the outlet baffle; and a water cooling wall slit is formed by taking down the water cooling wall fin between two corresponding adjacent water cooling wall pipes. The adherence air nozzle adopts a reducing design, smoke is sprayed out from one side of a main smoke direction, and the adherence air direction is the same as the axial direction of the water cooling wall pipe; and with an injection area, the device realizes stable and reliable formation, little flow resistance, long conveying distance and large protection range. The device does not need multi-layer arrangement, causes little influence on the burning heat transfer of the original boiler, and effectively solves the problem of high-temperature corrosion of the water cooling wall of the refuse burning boiler.

The invention discloses a pressure-operated load switch for a gas-insulated ring main unit. The pressure-operated load switch comprises a support, an upper support plate, a lower support plate, support insulators, an insulating cylinder, a fixed contact, a nozzle, a movable contact, a compressor sleeve, a conductive tube, a contact seat, a main shaft, a crank arm system and a guide rod, wherein a first high-voltage shielding case and a second high-voltage shielding case are arranged outside the insulating cylinder; the internal structure of the insulating cylinder forms a load switch arc-extinguishing chamber; the load switch arc-extinguishing chamber is fixed on the support through the support insulators and the upper support plate; the guide rod is fixed on the support through the lower support plate and the support insulator; the fixed contact and the movable contact adopt arc striking contact and conductive contact all-in-one structures; and airvents are formed on the fixed contact. The pressure-operated load switch has the advantages of small size, simple contact system, strong on / off capability, high action stability and long service life.

A fluid ejection device, a method and an operation method thereof are disclosed. The fluid ejection device comprises a substrate, a beam and an activation pad. The substrate has an orifice, and the beam comprises a fixed portion and a cantilever portion and is disposed over the substrate, wherein the cantilever portion is disposed over the orifice. Furthermore, the activation pad is disposed between the cantilever portion of the beam and the substrate. Because the fluid ejection device of the present invention is fabricated by using micro-electromechanical technology, and therefore it possible to obtain a fluid ejection device capable of ejecting the fluid from the orifice at a high-speed and also the quantity fluid ejected can be very small.

The invention relates to the technical field of clean energy, and discloses an integrated cleaning device capable of increasing the water spraying speed by using air pressure. The integrated cleaningdevice comprises a base, the upper end of the base is fixedly provided with a driving box, and the inner part of the driving box is rotatably connected with a rotating rod. According to the integratedcleaning device capable of increasing the water spraying speed by using the air pressure, a supporting plate is driven by a connecting pipe to move in a water storage tank, when the supporting platemoves downwards, an air bag is extruded, air in the air bag is extruded out, the air pressure in the water storage tank is increased, water is driven to move towards the supporting plate towards the connecting pipe and enter a water tank body in the supporting plate, the water moves downwards along with the supporting plate, the pressure is larger and larger, a movable block is driven to continuously move relatively, a connecting rod is matched to drive a limiting rod to move downwards, and therefore a connecting pipe opening can be opened, the water enters the inner part of a movable plate through the connecting pipe and can be sprayed out of a spray nozzle, and the effect of cleaning a heat collector body is achieved.

The invention relates to accurate-spraying superfine dry powder extinguishing equipment for an intelligent pipe rack. The accurate-spraying superfine dry powder extinguishing equipment includes a regulating mechanism, a mounting plate, a shell body and two guide mechanisms, the guide mechanisms include rotating mechanisms, guide plates and boosting mechanisms, and the rotating mechanisms include side plates, first motors, first driving shafts, sliding blocks and support rods; and the boosting mechanisms include driving assemblies, driving plates, two telescopic assemblies and a plurality of boosting assemblies, and the boosting assemblies include spray nozzles, air pipes, air cylinders, first pistons and clamping assemblies. According to the accurate-spraying superfine dry powder extinguishing equipment for the intelligent pipe rack, the rotating mechanisms can drive the guide plates to rotate to enable superfine dry powder to be sprayed out along channels formed by two guide plates, thereby reducing the influence of dry powder due to the wind force during fire disasters, not only that, high speed air is sprayed from the boosting mechanisms to accelerate the superfine dry powder, thereby further reducing the influence of the superfine dry powder due to the fire-heating air pressure, the accurate spraying of fire extinguishing equipment can be ensured, and a flame extinguishingability of equipment is enhanced.

The invention belongs to the technical field of carpet yarn processing, and in particular relates to special-shaped hollow PTT (polytrimethylene terephthalate) bulked yarn and a preparation method thereof, wherein the special-shaped hollow PTT bulked yarn comprises a carpet yarn body which is special-shaped hollow bulked yarn formed by PPT fiber after bulked deformation and processing; the linear density of the carpet yarn body is 1000dtex-2000dtex; and the single fiber of the special-shaped hollow bulked yarn has the cross sections of a three-leaf triangular outer ring and a triangular inner hole. The preparation method is that a spinneret plate with special-shaped spinneret holes is adopted, and the preparation is completed on a BCF (bulked continuous filament) spinning machine by a one-step method. The fiber hollow degree is 13%-18%, the carpet yarn with the same effect is prepared, the cost is lowered by more than 13%, and the special-shaped hollow PTT bulked yarn has favorable beneficial effects. By adopting the method, the preparation is completed by one step without increasing the spinning expense by utilizing the original spinning machine under the specific spinning condition, and the preparation method is simple, economic and practical.

A liquid-jet apparatus includes: a driving signal generating unit that generates a ejecting driving signal, which is a periodic signal having a plurality of pulse waveforms; a driving pulse generating unit that generates a driving pulse string for each unit region of a medium to be printed upon, on the basis of gray-scale data for the unit region, the ejecting driving signal, and information on whether the driving pulse string generated for a previous unit region includes a last pulse waveform or a pulse waveform immediately before the last pulse waveform in one cycle of the ejecting driving signal; and a control unit that drives the pressure changing unit on the basis of the driving pulse. In the liquid-jet apparatus, the one cycle of the ejecting driving signal corresponds to one unit region of the medium to be printed upon.

The invention discloses an atomization humidifying device for a refrigerator and a humidification control method. The device comprises a box body, a micro-hole atomization head, a humidity sensor and a circuit control board. The side portion of the box body is provided with a through hole. The micro-hole atomization head is arranged on the side portion of the box body and opposite to the through hole. Both the humidity sensor and the circuit control board are arranged on the box body. The circuit control board is electrically connected with the humidity sensor and the micro-hole atomization head. The humidity sensor is used for detecting the humidity inside the refrigerator and sending the detection information to the circuit control board. The circuit control board is used for controlling the micro-hole atomization head to carrying out humidification work. According to the atomization humidifying device for the refrigerator, water is changed into gas spray through the micro-hole atomization head and sprayed out through micro holes, the airflow spraying-out speed is high, and the refrigerator can be rapidly filled with gas spray. The humidity sensor is directly added in the box body of the atomization humidifying device instead of arranging a humidity sensor and an atomization piece in the refrigerator, so that the atomization humidifying device is high in independence degree, can be put in and taken out of the refrigerator conveniently and good in humidifying effect.

The invention discloses a spherical rolling and pressing cutter which comprises a cutter handle, wherein a connecting head is arranged at the head part of the cutter handle; a guide rod connected with a fixing rod on a machine tool is rotatably arranged at one end of the connecting head; a cutter head rotating in the same angle as the guide rod is arranged at the other end of the connecting head; a rolling and pressing head is fixed on the cutter head; a rolling and pressing ball retainer is slantly mounted on the rolling and pressing head; a rolling and pressing ball is mounted at the head part of the rolling and pressing ball retainer in a rolling manner; an oil inlet channel is formed in the cutter handle; an oil inlet is formed in the end part of the oil inlet channel; a connecting channel is formed in the connecting head; an oil outlet channel is formed in the rolling and pressing head; the oil inlet channel, the connecting channel and the oil outlet channel are connected to form an oil passing channel; oil flushing openings are uniformly formed in the periphery of the rolling and pressing ball retainer. The spherical rolling and pressing cutter has the advantage that the cutter head and the guide rod can rotate in the same angle along with machining tracks during a machining process, so that cutting point positions of the rolling and pressing ball and a machined workpiece are always kept unchanged. Thus, the nonuniform stress caused by the changes of the cutting points during the machining process is avoided. As a result, the machining precision is improved.

The invention relates to the technical field of agricultural machines, in particular to a micro-tiller convenient to clean. Compared with the prior art, the micro-tiller is provided with an extruding-type air injection device controlled by a cam, an air transmission pipe of the air injection device is divided into two secondary air transmission pipes inside a convertor, the secondary air transmission pipes penetrate out of the two sides of the convertor respectively, one ends, far away from the convertor, of the two secondary air transmission pipes are located in two second cavities respectively, rotary tilling wheels are fixedly connected on a first driving rod and a second driving rod, and a plurality of rotary tilling blades are arranged on the rotary tilling wheels, third cavities communicated with the second cavities are formed inside the rotary tilling wheels, fourth cavities communicated with the third cavities are formed inside the rotary tilling blades, and a plurality of air injection holes communicated with the fourth cavities are formed in the surfaces of the rotary tilling blades. By means of the micro-tiller convenient to clean, the problems that rotary tilling blades and rotary tilling wheels of an existing micro-tiller are easy to allow soil to drop out to pollute road surfaces and a conveying device in the conveying process, and cleaning is inconvenient are solved.

The invention discloses a radio frequency plasma source for a micro satellite. The radio frequency plasma source is characterized by comprising a propellant supply system, a radio frequency dischargedevice and an electromagnetic acceleration device, wherein the propellant supply system comprises a propellant storage tank, a pipeline and a flow controller; the radio frequency discharge device comprises a discharge cavity, an antenna and a DC / RF converter, a matcher, a satellite bus and a Faraday shield cylinder, and the electromagnetic acceleration device comprises a magnetic mirror and a magnetic spray pipe. According to the radio frequency plasma source, the ionization rate and the plasma density of the propellant of the plasma source are improved through the radio frequency discharge technology, the plasma is accelerated by the aid of the magnetic mirror and the magnetic spray pipe, and the plasma discharge speed of the plasma source is increased; and the integral structure is compact in design and light, does not need parts such as an electrode, accelerates grid electrode and neutralizer which are prone to corrode and seriously restricts the service life of the plasma source,and the performance and the service life of the plasma source are further improved.

The invention relates to a movable unmanned aerial vehicle gas-liquid power ejection system, and relates to the technical field of unmanned aerial vehicle launching. According to the system, an ejection mode of an unmanned aerial vehicle is changed, reverse thrust generated from high-pressure water jetting is directly used as ejection power, an ejection speed is increased by means of pulleys, theenergy secondary conversion is avoided, the energy efficiency is high, the system structural composition is simple, the speed increasing ratio is large, the maneuvering flexibility is good, the problems of electromagnetic interference and the like are avoided, and the system can be widely applied to catapult-assisted take-off of -fixed-wing unmanned aerial vehicles of various types.

The invention provides a method for preparing a superfine spherical aluminum powder by high-pressure atomization. Firstly, under the protection of the mixed gas of nitrogen and helium, aluminum ingotsare heated and melted in a melting furnace to become aluminum liquid and warm is kept; then the obtained aluminum liquid is transported through an aluminum liquid catheter to an atomization chamber where the above mixed gas is used as the ambient gas, and meanwhile, the mixed gas is sprayed out through a tightly coupled gas atomization nozzle to atomize the aluminum liquid to form mist-like aluminum liquid droplets; then the liquid aluminum droplets are cooled and rapidly solidified under the cooling and protection of the ambient gas to form atomized aluminum powder; and then the mixed gas isused as a transmission medium, and the atomized aluminum powder is sent to a grading system for graded screening treatment to obtain the superfine spherical aluminum powders of different particle sizes. The method for preparing the superfine spherical aluminum powder by high-pressure atomization provided by the invention uses the mixed gas of nitrogen and helium as the atomization medium, and hasthe advantages of high atomization efficiency, high fine powder yield, uniform particle size distribution, good aluminum powder sphericity and uniform size.

The burning system of spark plug ignition room is used in igniting engine capable of burning several kinds of fuel. The burning system has one ignition room with one spark plug mounted, one fuel jet to jet the fuel beam directly into the ignition room to form thick inflammable mixed gas around the electrode of the spark plug for easy ignition and thin inflammable mixed gas outside the ignition room, so as to make the burning system ignited reliably and burnt completely. The engine has raised efficiency, improved exhaust performance, and lowered fuel consumption. Under high load, the fast flame jetting avoids detonation and decreases noise.

The invention discloses an energy-saving heat dissipation type LED street lamp that comprises a lamp post and a lampshade fixedly connected to the side wall of the lamp post; the lower end of the lampshade is open and provided with a transparent cover, a lamp body is fixedly installed on the inner wall of the lampshade; heat dissipation holes are formed in the side wall, away from the lamp post, of the lampshade; a cavity is formed in the side wall of the lamp post, and an impeller is rotationally connected to the side wall of the lamp post through a fixing shaft. The impeller, a magnetic block, a movable plate and a fixed plate are arranged; the impeller can be driven to rotate by airflow, therefore, the movable plate slides up and down; hot air in the lampshade is pumped out, and external cold air enters the lampshade; therefore, a good heat dissipation and cooling effect on the street lamp is achieved, current can be generated and stored for supplying power to the street lamp, electric energy is saved, meanwhile, the pumped hot air can be used for promoting rotation of the impeller, cyclic utilization of energy is achieved, and the heat dissipation and cooling effect and the electric energy saving effect of the street lamp are further improved.

The invention discloses a steam catapult with parallel, series and separation functions. The steam catapult comprises a shell, an air storage tank and an ejection unit. The ejection unit comprises a desk, a sliding block tunnel, a sliding block, a low-pressure cavity shell, a tunnel pipe, a cylinder, piston sleeves, a tapered frame and stamping water cylinders. The in-out flow of the front and rear single-double three stamping water cylinders are controlled by three step control valves separately, one-way valves and a switch valve are installed in pistons, the pistons are divided into two parts including pistons I and pistons II, the pistons I and the pistons II are fastened by bolts separately, and sliding ways and piston sleeves, corresponding to the sides of the pistons I, are composedof sleeve fame beams and are connected with tapered frame hollow columns and penetrate out of front covers to be connected with bearing beams. When the weight of a carrier is specified, the steam catapult can calculate the exact movement value of corresponding parts, pull rods are arranged at the centers the end faces of the pistons II, and the pistons II are internally provided with shaft cores and shaft core pistons for common use of ejection and back stroke. The steam catapult with the parallel, series and separation functions has flexible operation, reliable performance, high speed, high efficiency and good air tightness, and the heat utilization rate is improved.

A fluid ejection device, a method and an operation method thereof are disclosed. The fluid ejection device includes a substrate, a beam and an activation pad. The substrate has an orifice, and the beam includes a fixed portion and a cantilever portion and is disposed over the substrate, wherein the cantilever portion is disposed over the orifice. Furthermore, the activation pad is disposed between the cantilever portion of the beam and the substrate. Because the fluid ejection device of the present invention is fabricated by using micro-electromechanical technology, and therefore it possible to obtain a fluid ejection device capable of ejecting the fluid from the orifice at a high-speed and also the quantity fluid ejected can be very small.

The invention discloses a high-rise LED wall washing lamp with a self-cleaning function. The lamp comprises a transparent lamp shell, and a plurality of LED lamp beads are installed in the transparentlamp shell. A liquid storage cavity is formed in the side wall of the transparent lamp shell. A liquid pumping groove is further formed in the side wall of the transparent lamp shell; the liquid storage cavity is communicated with the liquid pumping groove through a liquid guide pipe, a pumping device for pumping liquid in the liquid storage cavity is installed in the liquid pumping groove, a first one-way valve is installed in the liquid guide pipe, a three-way pipe communicated with the interior of the liquid pumping groove is embedded in the transparent lamp shell, and a second one-way valve is installed at the water inlet end of the three-way pipe. Water in the liquid storage cavity is continuously pumped into the liquid guide pipe, then is discharged into the spraying pipe from the three-way pipe and finally flows to the surface of the lamp shell, so that dust particles attached to the surface of the lamp shell can be flushed, wind energy is utilized for cleaning, energy conservation and environmental protection are achieved, meanwhile, manual maintenance is not needed, and cleaning is rapid and convenient.

A liquid ejection head has an element substrate on which a plurality of heaters for generating energy for ejecting liquid droplets are disposed, a nozzle forming member laminated on the main surface of the element substrate and including a plurality of nozzles each having an ejection port for ejecting liquid droplets, a bubble forming chamber in which bubbles are formed by a heater, and a supply path for supplying liquid from a supply chamber to the bubble forming chamber. The nozzle forming member has a portion located in the vicinity of the heaters on the supply path side where the height of the nozzles is reduced, whereby the height of the nozzles changes toward the supply chamber.

The invention relates to a preparation method of ultrafine metal powder, which belongs to the field of material preparation. The preparation method specifically comprises the steps of smelting, atomizing, cooling, depositing, drying and grading, wherein deoxidation treatment is performed in a smelting process. According to the preparation method, the degree of oxidation is reduced by adding a deoxidation covering agent in the smelting process, so that nonmetallic inclusions and fine refractory particles in smelting liquid can be effectively adsorbed so as to purify the smelting liquid. Additionally, the injecting speed of atomizing gas can be increased by using a laval nozzle in an atomizing process, laminar atomizing airflow at 2.5 to 5 times supersonic speed can be formed under 0.2 MPa, the phenomenon that ultrafine alloy is aggregated can be effectively inhibited by the laminar atomizing airflow, ultrafineness of the metal powder can be realized, and the rate of finished products of the ultrafine metal powder is greatly increased.