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Cold gas dynamic spray apparatus, system and method
ActiveUS20100151124A1Large operating rangeEasy to clogLiquid surface applicatorsMolten spray coatingInjection pressureSpray nozzle
A system for cold gas dynamic spraying of particulate material has a de Laval nozzle and two or more radial particle inlets located between the throat and the outlet of the nozzle, the two or more particle inlets arranged symmetrically around a linear flow path of the nozzle. Blocking of the inlets is reduced by controlling pressure of particle carrier gas to provide a stable particulate material injection pressure before and during introduction of working gas into the nozzle, and / or by clearing the particle inlets of residual particles after a spraying process. Such a system and associated method combines benefits of both downstream and upstream cold gas spray systems. Further, a nozzle for spraying particulate material having a cross-sectional shape that is narrower in a middle section compared to edge sections provides coatings with superior cross-sectional profiles.
Owner:NAT RES COUNCIL OF CANADA
Magnetized plasma artillery
InactiveCN104697397AReduce heat absorptionReduce radial forceBarrelsThermal insulationHeat resistance
The invention discloses magnetized plasma artillery. A magnetic field is arranged in an artillery body pipe, the direction of the magnetic field points to an artillery port along the direction of an axis of the artillery body pipe, the magnetic field strength is gradually reduced from an inner wall of the artillery body pipe to the axis of the artillery body pipe, and the gas in the artillery body pipe can be ionized into the plasma for forming a plasma sheath layer on the inner wall of the artillery body pipe under the action of the magnetic field while the artillery is launched. The magnetized plasma sheath layer formed on the inner wall of the artillery body pipe of the magnetized plasma artillery has stress anisotropic characteristic and has thermal insulation function, and then, the radial force for the artillery body pipe is greatly reduced, the driving force for the bullet is greatly improved, the heat resistance of the artillery body pipe is greatly improved and the service life is prolonged.
Owner:ACADEMY OF ARMORED FORCES ENG PLA
Radial rim sealing structure with damping holes and flow guide blades
ActiveCN105134306AGood sealingIncrease flow resistanceLeakage preventionMachines/enginesEngineeringAir compressor
The invention discloses a radial rim sealing structure with damping holes and flow guide blades. The radial rim sealing structure is characterized in that the radial rim sealing structure is arranged in a gas turbine rotor-stator cavity or a gas turbine rotor-rotor cavity and comprises an outer tooth and a radial inner tooth which are matched; a plurality of damping holes are evenly formed in the upper end face of an inner tooth body of the radial inner tooth in the circumferential direction, and a plurality of flow guide blades are evenly arranged on the radial end face of the inner tooth body of the radial inner tooth in the circumferential direction; furthermore, the damping holes are in a cellular shape and are evenly distributed in a sealing tooth face in the circumferential direction; the flow guide blade are arranged on the end face of the sealing radial inner tooth with equal arcs, and the blades are provided with gradually-shrunk channels. The rim sealing structure can effectively lower the high-temperature gas invading degree and improve the sealing performance of rim sealing, and therefore the overheat failure of a turbine disc is avoided, the use amount of low-temperature cooling air flow introduced from the position of an air compressor can also be reduced, and the efficiency of a unit can be improved.
Owner:XI AN JIAOTONG UNIV
Rotary jet self-priming type short-range strengthening foam production device for dust suppression of coal mining machine
The invention discloses a rotary jet self-priming type short-range strengthening foam production device for dust suppression of a coal mining machine. The device comprises a pressure water supply pipe, a swirl nozzle and a jet foaming barrel, wherein the pressure water supply pipe is connected with the swirl nozzle; the jet foaming barrel is internally and sequentially provided with an air suction chamber, a liquid suction chamber, a mixing throat pipe, a pressurizing foam formation chamber, a strengthening foam production chamber and an accelerating flow-out chamber; the swirl nozzle is screwed into the air suction chamber in the jet foaming barrel by screw threads; an air suction hole is formed in the air suction chamber, and a liquid suction hole is formed in the liquid suction chamber, and is connected with a liquid suction hose; a trapezoidal runner threaded rod is arranged in the strengthening foam production chamber. According to the device, air and a foaming agent can be automatically sucked by swiveling jet, and a pressure ventilation pipeline and a foaming agent adding device do not need to be provided, so that the device is reliable and high in applicability; efficient energy transfer and mass transfer of three mediums including water, air and the foaming agent as well as low-resistance dust suppression foam production can be realized by the short-range mixing throat pipe and the strengthening foam production chamber; the device is high in foam production efficiency and large in foam exit momentum, thus being suitable for controlling the cutting dust of the coal mining machine.
Owner:CHINA UNIV OF MINING & TECH
Multi-blade centrifugal fan with reinforced air inlet function
InactiveCN102536892AIncrease the import areaIncrease export speedPump componentsPumpsImpellerCentrifugal fan
The invention relates to a multi-blade centrifugal fan with a reinforced air inlet function. Nontraditional special-shaped blade structures are adopted. On the premises that the diameter of an impeller is not increased and the size of a volute fluid passage is not changed, by changing the shape of the air inlet side of each blade and increasing the area of the air inlet of the impeller, the goal of improving the air quantity and the air pressure of the centrifugal fan is achieved; by differently optimizing the shape of the air inlet side and the exhaust side of each blade of the impeller, an air flow field at the inlet of the impeller is obviously improved, the air flow loss and the noise of the fan are obviously reduced, the outlet speed of the impeller is improved, and the air quantity, the air pressure and the efficiency of the fan are obviously improved; the special-shaped blades have various structures and different demands can be met; the multi-blade centrifugal fan with the reinforced air inlet function provides a new approach for improving the air quantity, the air pressure and the efficiency of the centrifugal fan and reducing the noise; and the structure of the multi-blade centrifugal fan is simple, the cost is low, the implementation is easy, the energy-saving and environmental-friendly effects are remarkable and the multi-blade centrifugal fan can be popularized and used in various fields.
Owner:广东恒业电器有限公司
Centrifugal fan of extractor hood
The invention discloses a centrifugal fan of an extractor hood. The centrifugal fan comprises a volute and an impeller arranged in the volute. The impeller comprises a plurality of blades. The molded line of each blade comprises a first circular arc located in an inlet and a second circular arc located in an outlet, wherein the first circular arc and the second circular arc are in smooth connection, the radius of the first circular arc is R1, the central angle of the first circular arc is alpha 1, the radius of the second circular arc is R2, and the central angle of the second circular arc is alpha 2. The centrifugal fan of the extractor hood is characterized in that the radius ratio R2 / R1 of each first circular arc to each second circular arc ranges from 3.5 to 4, and the central angle alpha 1 of each first circular arc ranges from 85 degrees to 90 degrees. Due to the fact that the more reasonable radius and central angle parameters of two circular arcs of the molded line of each blade are selected, the shrinkage degree of the outlet of each blade and the long and narrow degree of each blade are larger, the outlet speed of the impeller is higher, the number of vortexes in an impeller channel is smaller, the centrifugal fan is more suitable for the application environment of the extractor hood, oil fume can be thrown away from the impeller more easily, and the number of vortexes in the fan is smaller.
Owner:NINGBO FOTILE KITCHEN WARE CO LTD
Infrared radiator embodied as a surface radiator
InactiveUS7011516B2Improve heat transfer performanceExtended service lifeBurner material specificationsGaseous fuel burnerCombustion chamberEngineering
Owner:VOITH PATENT GMBH
Composite anti-violence kinetic energy projectile compatible with various anti-violence guns
ActiveCN112304165AReasonable structureInnovative design scienceAmmunition projectilesProjectilesMuzzleSmokeless powder
The invention discloses a composite anti-violence kinetic energy projectile compatible with various anti-violence guns, the composite anti-violence kinetic energy projectile comprises a projectile head, an upper projectile body, a lower projectile body, a projectile support and a projectile shell assembly, the projectile head, the upper projectile body and the lower projectile body are mechanically connected in an inserted mode and fixed in an adhesive mode, the projectile head and the upper projectile body are made of soft materials, so that relative displacement and large deformation occur during short-distance high-speed impact, impact energy is effectively dissipated, excessive damage to a target is avoided, during long-distance low-speed impact, relative displacement is avoided, deformation is small, and more impact energy is transferred into the target body to achieve the expected pain-causing effect; the hard lower projectile body is wrapped around the soft upper projectile body, so that excessive scratching caused by the hard lower projectile body to a living target can be avoided; and through self-rotation and stable empennage dragging, the composite anti-violence kineticenergy projectile can be suitable for the anti-violence guns with wire bores and smooth bores, can effectively prevent shots from rolling over in the air and can effectively improve the striking precision, smokeless gunpowder is used as propellant powder, so that corrosion of gunpowder residues to a gun barrel can be reduced, the muzzle smoke amount is small, and interference to tactical actions is avoided.
Owner:ENG UNIV OF THE CHINESE PEOPLES ARMED POLICE FORCE
Multi-effect integrated kinetic energy bomb with hierarchical dissipation of impact energy
ActiveCN112902761AMinimize excessive injuryEnhanced long-distance performanceAmmunition projectilesProjectilesHigh energyMechanics
The invention discloses a multi-effect integrated kinetic energy bomb with hierarchical dissipation of impact energy. The multi-effect integrated kinetic energy bomb comprises a multi-effect bomb head assembly, a bomb body assembly and a launching assembly; and the three assemblies are mechanically inserted front and back. During extremely high-speed impact, the multi-effect bomb head assembly generates two-stage shear failure, buffer spring limit compression and first-stage impact failure, and an extremely large amount of impact energy is dissipated; during high-speed impact, the multi-effect bomb head assembly generates two-stage shear failure and compression of most of buffer springs, and a large amount of impact energy is dissipated; therefore, hierarchical dissipation of impact energy is achieved, i.e. the function of achieving high energy dissipation during short-distance high-speed impact and low energy dissipation during long-distance low-speed impact; and the kinetic energy bomb has triple non-fatal effects of kinetic energy striking, lacrimation dispersing and dyeing marking at the same time under different impact conditions, and the problems that an existing kinetic energy bomb is excessively large in short-distance power and insufficient in long-distance efficiency is fundamentally solved.
Owner:ENG UNIV OF THE CHINESE PEOPLES ARMED POLICE FORCE
Flooding-type varnished wire cable for high-power handheld transformer winding
InactiveCN102930932AReduce volumeHigh powerTransformers/inductances coils/windings/connectionsFlexible cablesElectromagnetic inductionPolytetrafluoroethylene
The invention discloses a flooding-type varnished wire cable for a high-power handheld transformer winding. Two ends of a minuteness varnished wire harness cable are respectively stretched into two copper pipe center holes to achieve connection, and the sections of joints of two copper pipes and the minuteness varnished wire harness cable are in a semicircular shape in mould-pressing mode; a polytetrafluoroethylene sleeve is sleeved outside the two copper pipes and the minuteness varnished wire harness cable, and a cooling water channel used for passing of ion cooling water is formed between the minuteness varnished wire harness cable and the polytetrafluoroethylene sleeve; the wall of the first copper pipe of a section of gap between the left end of the minuteness varnished wire harness cable and the right end of a water inlet joint inside the first copper pipe center hole is provided with a water inlet; and the wall of the second copper pipe of a section of gap between the right end of the minuteness varnished wire harness cable and the left end of the water inlet joint inside the second copper pipe center hole is provided with a water outlet. The minuteness varnished wire harness cable is soaked in deion cooling water, and a large amount of work heat can be taken away.
Owner:JIANGSU UNIV OF SCI & TECH
Non-pyrotechnic explosion and lacrimation composite kinetic energy bomb
ActiveCN113154956AMinimize excessive injuryIncrease dissipationAmmunition projectilesProjectilesPhysicsEngineering
The invention discloses a non-pyrotechnic explosion and lacrimation composite kinetic energy bomb. The non-pyrotechnic explosion and lacrimation composite kinetic energy bomb comprises a bomb head assembly, an explosion and lacrimation assembly, a bomb body assembly and a launching assembly, wherein the bomb head assembly comprises a bomb head body and a light-emitting element, the bomb head assembly sleeves the bomb body assembly, the explosion and lacrimation assembly is arranged between the bomb head assembly and the bomb body assembly, and the explosion and lacrimation assembly comprises a power element and a lacrimation element; the bomb body assembly comprises a bomb body and an impact ball, the lower side of the bomb body assembly is mechanically connected with the launching assembly in an inserted mode, the launching assembly comprises a bomb shell element, a charge and a low-pressure chamber, and impact energy can be effectively dissipated through shear failure between the bomb head assembly and the bomb body assembly and impact breaking of the light-emitting element and the explosion and lacrimation assembly; the probability of short-distance excessive injury is reduced, the pain-causing effect during long-distance low-speed impact is achieved through secondary impact of the hard bomb body, the light-emitting element emits dazzling white light and can indicate an impacted target and an impact point, the explosion and lacrimation assembly stimulates powder through explosion sounding and high-speed jetting, deterrence and dispersion are achieved, no smoke and no flame are achieved, and fire disasters cannot be caused.
Owner:ENG UNIV OF THE CHINESE PEOPLES ARMED POLICE FORCE
Composite kinetic energy bomb with point-surface double striking capability
ActiveCN112815786AImprove performance reliabilityImprove reliabilityAmmunition projectilesProjectilesInjury causeEngineering
The invention discloses a composite kinetic energy bomb with point-surface double striking capability. The bomb comprises a point striking assembly, a bomb body assembly, a surface striking assembly and a launching assembly. The point striking assembly comprises a bomb head body and a firing pin. The bomb body assembly is embedded and adhered to the point striking assembly, and the bomb body assembly comprises a bomb body and an impact ball, wherein a surface striking assembly is arranged in the bomb body and comprises a power element and injury causing elements, and the injury causing elements are 12 hollow rubber balls. A launching assembly is mechanically connected to the lower side of the bomb body assembly in an inserted mode, and the launching assembly comprises a bomb shell element, a charge and a low-pressure chamber. The impact of the bomb head body on a single target and the impact of the injury causing elements on mass targets are regarded as point-surface double impact capacity, the problems of too large short-distance power and insufficient long-distance efficiency are well solved through the design of the soft bomb head body and the hard bomb body, the power element is exploded to produce sound at the moment of being triggered, the deterrent performance is good, and fire hazards are avoided.
Owner:ENG UNIV OF THE CHINESE PEOPLES ARMED POLICE FORCE
Infrared radiator embodied as a surface radiator
InactiveUS20050069830A1Improve heat transfer performanceExtended service lifeBurner material specificationsGaseous fuel burnerCombustion chamberEngineering
A combustion chamber which is bounded on one side by a gas-permeable barrier, on the other side by a radiant element. The radiant element having a large number of ducts and emitting infrared radiation at its front surface. A jet plate with individual jets and the ducts of the radiant element are closed on the combustion chamber side, at least in the region of the outlet openings of the jets, by which baffle surfaces are formed, and toward which the outlet openings of the jets are aimed.
Owner:VOITH PATENT GMBH
Auxiliary jet air supply system with exhaust valve
The invention discloses an auxiliary jet air supply system with an exhaust valve. The auxiliary jet air supply system with the exhaust valve comprises a plurality of auxiliary jets arranged on an special-shaped reed, the rear ends of the auxiliary jets are arranged on an auxiliary jet seat, the auxiliary jets are connected with the exhaust valve through an air pipe, the exhaust valve is connected with a two-position three-way electromagnetic gas valve, and the two-position three-way electromagnetic gas valve is controlled through an electromagnetic gas valve time control system. The exhaust valve is additionally arranged in an air channel from the electromagnetic gas valve to the auxiliary jets, airflow remaining in the air pipe is exhausted, when high pressure airflow enters the air pipe and inner cavities of the auxiliary jets next time, air resistance can be reduced, the needed time when the airflow passes through the air pipe can be shortened, and auxiliary airflow jet speed is improved. Thus, response speed of auxiliary jet airflow can be improved on the premise that air supply pressure is not increased, airflow control force of the auxiliary jets is enhanced, and high-speed adaptability of an air-jet loom is improved.
Owner:WUJIANG WANGONG ELECTROMECHANICAL EQUIP
Cutting board spiral material dividing mechanism of automatic carton partition board insertion machine
InactiveCN103009677AReduce vibrationPush distance reducedContainer making machineryCartonEngineering
An automatic carton partition board insertion machine belongs to automatic package machinery. In the invention, the cutting board spiral material dividing mechanism of an automatic carton partition board has novel design, schematic view of the carton partition board is shown in figures and an overall design structure is shown in figure 2 . The cutting board spiral material dividing mechanism comprises a material feeding and dividing chamber, a vertical air jetting hole, inclined and vertical material sliding chutes, a material pushing spiral mechanism, and a material setting support plate. By the adoption of the design, the machine runs more conveniently and reliably; and a pair of rolling rubber covered rollers is additionally arranged at a material discharge port of the material feeding and dividing chamber, so that on one hand, the material pushing distance of a material pushing plate is greatly reduced as long as a cutting board is inserted between the two rollers, and the vibration during material pushing is reduced, on the other hand, the outlet speed of cutting boards is increased and blanking is more reliable.
Owner:QIQIHAR UNIVERSITY
Device for shooting water bomb with high-pressure gas
The invention provides a device for shooting a water bomb with high-pressure gas. The device comprises a rack, wherein the lower end of a gun barrel is connected with an end cover; an air inlet is formed at the center of the end cover; a water bottle is located inside the gun barrel; the outer wall of the water bottle and the inner wall of the gun barrel are connected in a sealing manner; a gas security valve is mounted on a gas storage tank; an air outlet of the air storage tank is communicated with an inlet of a high-pressure channel of a valve block; a valve cavity is formed on a valve body of a high-speed switch gas valve; a valve core is mounted at the middle part of the valve cavity in a left and right movable manner; a plug is mounted at the left side of the valve cavity; a channel of the plug is communicated with an outlet of the high-pressure channel; the left end of the valve core is ejected on the plug, and the right end of the valve core is connected with the left end of a compression spring; the right end of the compression spring is mounted at the right part of the valve cavity; a normally-opened dual-position three-way electromagnetic reversing valve is mounted at the right end of the valve cavity for connection; the right end of the valve cavity is communicated with the left end of the valve cavity through a middle runner of the valve body and the electromagnetic reversing valve; an air outlet is formed in the valve body; the air outlet is communicated with an air inlet of the end cover; a dead area is arranged between the left end of the valve core and the left side of the air outlet. The device provided by the invention has the advantages of long shooting distance and strong power.
Owner:海宁市盐官工业投资有限公司
Thermal Energy Storage System With Heat Discharge System to Prevent Thermal Runaway
ActiveUS20220170388A1Easy constructionEasy to operateCellsHeat storage plantsThermal energyElectrolysis
An energy storage system converts variable renewable electricity (VRE) to continuous heat at over 1000° C. Intermittent electrical energy heats a solid medium. Heat from the solid medium is delivered continuously on demand. An array of bricks incorporating internal radiation cavities is directly heated by thermal radiation. The cavities facilitate rapid, uniform heating via reradiation. Heat delivery via flowing gas establishes a thermocline which maintains high outlet temperature throughout discharge. Gas flows through structured pathways within the array, delivering heat which may be used for processes including calcination, hydrogen electrolysis, steam generation, and thermal power generation and cogeneration. Groups of thermal storage arrays may be controlled and operated at high temperatures without thermal runaway via deep-discharge sequencing. Forecast-based control enables continuous, year-round heat supply using current and advance information of weather and VRE availability. High-voltage DC power conversion and distribution circuitry improves the efficiency of VRE power transfer into the system.
Owner:RONDO ENERGY INC
Flechette for direct fire weapons
ActiveUS20160363425A1Improve flight stabilityIncrease launch speedAmmunition projectilesBarrelsEngineeringCantilever
A flechette for use with a gun barrel having a tapered bore with a diameter at the initial bore section greater than the diameter at the emergent bore. The flechette includes a body constructed of a ductile material and having an elongated axis aligned with the axis of the tapered bore when positioned in the load end of the bore. The body also includes a cylindrical bulkhead as well as a bourrelet that are axially spaced from each other along the flechette and have an outside diameter substantially the same as the diameter at the initial bore section of the tapered bore. An elongated boom is attached at the tail end of the body while a penetrator is attached at the forward end of the body. Upon launch, both the bulkhead and bourrelet are compressed radially inward by the bore reduction so that the body is substantially cylindrical upon exit from the discharge end of the bore.
Owner:US SEC THE ARMY THE
Method for controlling aluminium alloy extrusion processing system
InactiveCN1903466AImprove optimizationIncrease brightnessExtrusion control devicesMeasuring instrumentControl system
A control method for the extruding technology of Al-alloy features that its technological parameters are set up to be pre-heating temp To-375-520 deg.C, extruding outlet temp Te=490-540 deg.C, plunger moving speed Vs=3-10 mm / s, and the marginal factor of extruding force up=0.1, and the bichromic infrared temp measuring instrument and industrial microcomputer control system are used for measuring or calculating said parameters.
Owner:天津锐新昌科技股份有限公司
Self-absorption portable-type shower
The invention discloses a self-absorption portable-type shower which comprises a valve body, a valve core, a temperature adjustment knob, a flow adjustment rod and a sprinkler, wherein a cold water inlet end, a hot water inlet end and a warm water outlet inlet are disposed on the valve body; the valve core is fixed at the cold water inlet end, and the valve core comprises a spray nozzle and a spray nozzle fixation sleeve; the spray nozzle is fixed inside the spray nozzle fixation sleeve, a conical flow guide section and a cylindrical spraying section are disposed successively in a water flow direction inside the spraying nozzle, and the conical flow guide section is shaped like a cone of which the radius decreased gradually; the hot water inlet end is located under the flow guide section and also located in the rear part of the spray nozzle fixation sleeve, and the rear part refers to a water flowing direction; and a vacuum section, a mixed section and an expansion section are successively disposed along the water flow direction at an upper position close to the spray nozzle in the middle of the valve body. The self-absorption portable-type shower provided by the invention can solve the technical problem about how to adjust a structure of a jet flow valve in order to increase a water discharge speed of the jet flow valve and how to make the temperature of discharged warm water finally reach a proper temperature without frequent adjustment.
Owner:优耐德(浙江)科技股份有限公司
Roller parameter automatic calculating method for three-roller planetary rolling mill
InactiveCN101062509AIncrease export speedUniform wall thicknessRollsMetal rolling arrangementsEngineeringCalculation methods
The invention relates to a three high mill planetary rolling mill parameter automatic computation method. Along the profile of the roller in straight or arc lines, it goes into the latching zone, accumulated deformation zone, trimming zone, rounding zone, with the rolling piece shaft as the rolling line and being the overall coordinate, in which, single roller local coordinate being build and transferred to the overall coordinate, getting the overall coordinate rolling coordinate formula, using teeth formula, based on the said coordinate formula computing the roller line and the rolling piece, getting the half tapering angle of the trmming zone. It realizes automatic optimization design of the roller with simple operation, convenience.
Owner:INST OF METAL RESEARCH - CHINESE ACAD OF SCI
Ice blasting system and method
InactiveCN109311063AIncrease export speedReduce weightAbrasive feedersCleaning using liquidsWater iceEngineering
A blast cleaning system has a nozzle configured to deliver a pressurized blast cleaning media. The blast cleaning media includes a pressurized fluid and water ice particles as the primary blast cleaning component. The system includes an input hopper configured to accept supplied water ice in bulk form from an outside source. The system further includes a particle sizing module configured to produce the water ice particles for the pressurized blast cleaning media from the supplied water ice after the supplied water ice has been accepted into the input hopper.
Owner:COULSON ICE BLAST LTD
Unmanned aerial vehicle launching device
ActiveCN113044233ASimple structureEasy to installLaunching/towing gearUncrewed vehicleStructural engineering
An unmanned aerial vehicle launching device comprises a base, a launching cylinder, an air storage cylinder, a connecting pipe, an electromagnetic valve and a supporting block, the launching cylinder comprises a cylinder body used for containing an unmanned aerial vehicle and a locking clamping plate fixed to the cylinder body, one end of the cylinder body is fixed to the base, and the other end of the cylinder body is of an opening-shaped structure communicated with the outside; and the locking clamping plate is located at the end, close to the opening-shaped structure, of the barrel and used for forming a clamping fixing structure with the unmanned aerial vehicle. The air reservoir is fixed on the base; and the connecting pipe is fixed to the base, one end of the connecting pipe communicates with the launching cylinder, and the other end of the connecting pipe communicates with the air storage cylinder. The electromagnetic valve is installed in the launching cylinder and controls the launching cylinder and the air storage cylinder to be communicated or closed. The supporting block is arranged in the launching cylinder, and when the unmanned aerial vehicle is contained in the cylinder body, the supporting block and the locking clamping plate connectorly support and fix the unmanned aerial vehicle. Compared with the prior art, the device is simple in structure and easy to assemble.
Owner:河南创仕航空科技有限公司
Fin-stabilized energy attenuation type anti-violence kinetic energy projectile
ActiveCN112344809AReasonable structureInnovative design scienceAmmunition projectilesProjectilesEngineeringMechanical engineering
The invention discloses a fin-stabilized energy attenuation type anti-violence kinetic energy projectile. The fin-stabilized energy attenuation type anti-violence kinetic energy projectile comprises alaunching assembly, a projectile support assembly and a projectile assembly, wherein the projectile support assembly comprises a gas closing disc and a supporting base, the self weight can be reduced, gunpowder fuel gas boosting force can be efficiently utilized to improve the projectile launching initial speed, and the projectile assembly is formed by compositing a soft projectile head and a hard projectile body. During short-distance high-speed impact, shear failure occurs between the projectile head and the projectile body, the soft projectile head deforms greatly, and impact energy is effectively dissipated, so that excessive damage to a short-distance target is avoided; and during long-distance low-speed impact, shear failure does not occur between the projectile head and the projectile body, the soft projectile head deforms slightly, a secondary impact load is applied to the hard projectile body, and a larger proportion of impact energy is transferred into the target body, so that the expected pain causing purpose is achieved, the problems that an existing kinetic energy projectile is too large in short-distance power and insufficient in long-distance efficiency are effectively solved, a load ball is additionally arranged on the projectile assembly, and multiple non-lethal effects can be achieved.
Owner:ENG UNIV OF THE CHINESE PEOPLES ARMED POLICE FORCE
Air flue structure and air conditioner
ActiveCN104566890APlay a diversion roleIncrease export speedLighting and heating apparatusNoise suppressionEngineeringEnergy loss
The invention discloses an air flue structure and an air conditioner. The air flue structure comprises a shell (1) and a spiral casing (2) arranged in the shell (1), wherein the spiral casing (2) is provided with a spiral casing outlet (3); the shell (1) also comprises a hollow chamber (4) which is communicated with the spiral casing outlet (3); a first guide plate (5) is arranged in the hollow chamber (4); a first end of the first guide plate (5) is connected to the side wall of the spiral casing outlet (3); a second end of the first guide plate (5) is connected to the side wall of the hollow chamber (4). According to the air flue structure disclosed by the invention, the problem of the prior art that the fluid outlet speed and the fluid flow are reduced due to certain noise and energy loss since a right-angle dead angle zone exists when fluid flows in the hollow chamber of the air flue structure can be solved.
Owner:GREE ELECTRIC APPLIANCES INC
Flechette for direct fire weapons
ActiveUS9746298B2Constant diameterIncrease export speedAmmunition projectilesBarrelsEngineeringGun barrel
Owner:US SEC THE ARMY THE
Production method of low-alloy grain refinement type HRB400E reinforcing steel bar
InactiveCN114643278AYield strength up to standardNot easy to rustTemperature control deviceMetal rolling arrangementsTemperature controlRebar
The invention provides a production method of a low-alloy grain refinement type HRB400E reinforcing steel bar. The production method comprises the following steps of steel billet heating, rough rolling, intermediate rolling, pre-finish rolling on a pre-finish rolling machine, two-time cutting, primary controlled cooling, primary finish rolling, secondary controlled cooling, secondary finish rolling, water cooling, double-length flying shear shearing, cooling on a cooling bed and natural aging. The steel bar comprises the following elements in percentage by mass: 0.20%-0.25% of C, 0.40%-0.70% of Si, 0.90%-1.20% of Mn, less than or equal to 0.045% of P, less than or equal to 0.045% of S and the balance of Fe. The method has the advantages that the temperature control range can be enlarged by rolling the segmented single wires and cooling the segmented single wires by the aid of multi-stage water tanks, uniform cooling and deformation can be guaranteed, ferrite and pearlite structures can be obtained, crystal grains can be refined, the grain size ranges from 9.0 to 10.5, the mechanical properties of the reinforcing steel bars can be guaranteed, and alloy resources can be saved.
Owner:SHANDONG IRON & STEEL GRP YONGFENG LINGANG CO LTD
Tower type direct air cooling condenser
ActiveCN106052413BImprove cooling effectReduce power consumptionEnergy industrySteam/vapor condensersPower stationEngineering
Owner:BEIJING LONGYUAN COOLING TECH
Method and apparatus for reduction of pollutants in combustion effluent
InactiveUS20130074746A1Easy to switchQuick switchGas treatmentNitrogen compoundsPollutant emissionsHigh velocity
Selective non-catalytic reduction (SNCR) of pollutant remissions in a fossil fuel combustion furnace having water cannons installed therein for removing combustion incrustation is accomplished by using the water cannons intended for de-slagging by mixing a reagent with water and administering the mixture under high velocity and high blast flow rate to the interior of the furnace for reduction of pollutant emissions, such as NOx, with the water cannons. The water cannons may be switched from the SNCR function to a de-slagging function.
Owner:POWER & INDAL SERVICES
Manufacturing method of composite sabot of armor-piercing bullet and sabot
PendingCN114248391AImprove performance utilizationThe stock is lightAmmunition projectilesProjectilesArmor-piercing shellFiber
The manufacturing method comprises the following steps that a high-strength fiber prefabricated body is adopted as a reinforcing material at the joint of the high-strength fiber prefabricated body and a penetration rod, and a support core with inner teeth is manufactured through an RTM technology; performing external molding on the support core by adopting injection molding or mold pressing to form a preparation part; cutting the prepared part to form a plurality of supporting petals; the supporting petals are placed on the steel mandrel which is the same as the matching surface of an actual penetration body and fastened through the rope, then the supporting petals are turned to the specified size, the fastening rope on the supporting petals is unfastened, and manufacturing is completed. The performance utilization rate of the reinforced fibers in the composite material is high, the weight of the sabot is lighter, and the outlet speed of a penetration body is higher under the condition of the same explosive loading amount.
Owner:XIAN YINGLIKE ELECTRIC TECH CO LTD
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