123results about How to "Increase the initial velocity" patented technology

The invention provides gun, artillery and rocket jet engines, steam turbines, internal combustion engines and air vehicles with an additional magnetic device. A magnet is included, translational motion, through Lorentz force, rotation and vibration of fluid molecules near the magnet in the direction of being perpendicular to the micro-flow direction of fluid are strongly inhibited, and pressure and temperature of the fluid molecules in the direction of being perpendicular to the micro-flow direction of the fluid are significantly lowered, so that the speed that the fluid molecules diffuse in the needed micro-flow direction is significantly increased. Viscous friction, turbulent shear stress, friction force and heat conduction in a boundary layer and shock waves, resistance generated by the shock waves and negative influences of heating on relative movement between air flow and an object are eliminated fundamentally in the microcosmic level or at least weakened greatly. By equipping the magnet on various gun, artillery and rocket engines, jet engines, turbines, gasoline engines, diesel engines and the like, radial pressure and temperature must be significantly lowered, the initial speed of pills is significantly increased, the power and the speed of the rock engines and the jet engines are increased, the energy utilization rate of the gas turbines, the turbines and the internal combustion engines is increased, and various resistances borne by the air vehicles and heating of the air vehicles are significantly reduced.

The invention discloses a static air mixer. Return distribution air and combustion-supporting air are introduced by utilizing a Venturi structure, are completely mixed under the action of a Venturi effect, keep at a complete importing state constantly, and are matched with a spiral air mixing channel, so that air flows are continuously blended and mixed uniformly, and the effects on uniformly mixing, reducing the oxygen content and outputting are achieved. According to the static air mixer, the return distribution air and the combustion-supporting air are introduced by utilizing the Venturi structure, are completely mixed under the action of the Venturi effect, keep at the complete importing state constantly, and are matched with the spiral air mixing channel, so that the air flows are continuously blended and mixed uniformly, and the effects on uniformly mixing, reducing the oxygen content and outputting are achieved.

The invention relates to a device for throwing fish food on the water surface. The device includes a floating platform, a food storage groove formed in the middle of the upper end face of the floatingplatform, an upper annular discharging turntable arranged on the upper portion of the food storage groove and a vertically fixed material conveying pipe. The lower end of the material conveying pipeis inserted into the food storage groove, and the upper end of the material conveying pipe passes through an inner ring of the upper annular discharging turntable to the upper portion of the upper annular discharging turntable; the circumferential surface of the upper portion of the material conveying pipe is sleeved with an umbrella-shaped upper guide cove; the inside of the material conveying pipe is sleeved with a spiral shaft, the upper end of the spiral shaft is slightly higher than the upper end face of the material conveying pipe, and fish food in the food storage groove is conveyed tothe upper end of the material conveying pipe, falls down, and then guided by the upper guide cover to the upper annular discharging turntable. The upper surface of the upper annular discharging turntable is uniformly provided with several convex first separation strips. The device can achieve automatic feeding and uniformly throw the fish food around.

The invention discloses a dissolved oxygen concentration optimization method based on activated sludge water treatment. The method comprises the following steps: step 1, establishing an activated sludge water treatment system model; step 2, improving the particle swarm algorithm; step 3, establishing an integrated effluent quality prediction model based on XGBoost and performing simulation calculation on the integrated effluent quality prediction model to obtain a real-time effluent parameter value of the water quality model; step 4, using APSO-BP method for dynamically optimizing the dissolved oxygen concentration in inlet water quality to obtain an optimal dissolved oxygen concentration set value. According to the optimization method, an integrated learning model based on XGBoost is adopted to predict the parameter value of the effluent quality in real time, and APSO-BP is adopted to predict the parameter value of the effluent quality in real time; the BP method establishes the dissolved oxygen concentration optimization model, on the basis of ensuring the effluent quality, the problems of large effluent parameter value time delay, low precision and the like in the activated sludge process sewage treatment process are solved, the enterprise production cost is reduced through reasonable aeration of the aeration tank, and efficient and stable operation of a factory is promoted.

The invention provides a launcher launch system and a booster launch method thereof, which belong to the field of booster devices and include horizontal tracks, arc tracks and vertical tracks connected in sequence; Orbit, arc orbit and vertical orbit; it can make the rocket launch use ground resources to obtain the initial velocity, can reduce its own energy consumption, and can reduce the pollution of the rocket jet to the ground environment.

A water mist fire extinguishing system comprises a first laval jet tube, an injector, a second laval jet tube and a nozzle. The water mist fire extinguishing system adopts two laval jet tubes, and compressed air flows through the first laval jet tube to improve the flow speed; and when a high speed moving gas and water go through the injector, generated water mist is mixed and is injected into the second laval jet tube, and the water mist has a reduced pressure and an accelerated speed under the action of the second laval jet tube, and the high speed jetted water mist reaches the nozzle in order to complete jet. The above structure makes the initial velocity of the water mist increased and the particle size of the water mist stable, and enables the average particle size to be 140mum, so a fire source can be effectively covered, waste reduction can be realized, the protection of objects especially afraid of water is guaranteed, the structure is simple, and the cost is low; and additionally, the acceleration of the water mist in the laval jet tubes makes the work pressure of the fire extinguishing system decreased when the same water mist particle size is reached, so the life safety is guaranteed.

The invention relates to an electromagnetic dynamic gun, which is a strategic weapon for future wars. The electromagnetic dynamic gun is characterized in that the gun comprises an oval-like track accelerating ring (P) for providing electromagnetic dynamics and an electromagnetic dynamic track surface (A) sleeved at the outer side of the oval-like track accelerating ring (P); a gun charger (C) is installed at the side of the oval-like track accelerating ring (P) for loading and sending magnetic coil missiles (B) to the electromagnetic dynamic track surface (A); the electromagnetic dynamic track surface (A) carries out mass motion around the oval-like track accelerating ring (P) by electromagnetic dynamics for driving the magnetic coil missiles (B) to accelerate; a protecting body (E) is arranged at the outer side of the oval-like track accelerating ring (P) and the electromagnetic dynamic track surface (A); and the protecting body (E) is provided with a missile emitting outlet and a starting button switch (Q). The shell emitted by the electromagnetic dynamic gun has high imperceptibility and initial speed without infrared effect.

The invention relates to a bouncing robot and aims to provide a bouncing leg based on an incomplete set of gears. The bouncing leg has the characteristics of high kinetic energy conversion efficiency,continuous jumping and stable and reliable bouncing. The technical scheme is as follows: a bouncing leg based on an incomplete gear set is characterized in that the bouncing leg comprises a frame, anenergy storage spring mounted on the frame and a transmission component which presses the frame to make the energy storage spring deform, accumulate or release energy to jump; The machine frame comprises a main body formed by the hinged connection of the pointed forefoot and the J-shaped hind foot and standing on the ground, and a U-shaped connector hinged on the top end of the pointed forefoot;The energy storage spring comprises a lower joint torsion spring installed at the hinge point of the point-type forefoot and the J-type hindfoot and biased at both ends of the point-type forefoot andthe J-type hindfoot respectively, and an upper joint torsion spring installed at the hinge point of the point-type forefoot and the U-type connector and biased at both ends of the point-type forefootand the U-type connector respectively.

The invention provides a method for reducing sliding distance of an airplane during landing and taking off, which belongs to the technical field of aircraft carriers. The method comprises a conveying belt, a sub haulage cable, an anti-backing roller and wall and a haulage cable; and scheme is as follows: (1) the airplane is started and accelerated together with the conveying belt on the conveying belt, the conveying belt moves reversely, the pulling cable is separated from the airplane while the pull force of the pulling cable reaches 0.1-1000 N, and the airplane rushes out of the conveying belt to take off; and (2) after the airplane lands on or slides to the conveying belt reverse to the airplane operation direction, the airplane engine is stopped and the conveying belt is decelerated until parking, and then the airplane lands successfully. The method provided by the invention, which is a novel takeoff and landing mode, is superior to the traditional airplane takeoff and landing mode and especially suitable for carrier on the aircraft carrier to take off; the sliding distance of the airplane during taking off and landing can be reduced; the airplane can directly take off or land on the conveying belt under the circumstance that the airplane performance and pilot physical fitness permits; and the method also has the characteristics of low manufacturing cost, simplicity for manufacturing, less energy consumption and simplicity in operation.

The invention provides a novel energy storing device for a crossbow. A combination roller and a tension spring are fixedly arranged in a vertical crossbow body by bolt pins respectively; the combination roller consists of two rollers with different diameters; two large rollers and a small roller in the middle keep rotating synchronously; a bowstring for pushing an arrow is divided into two strands which are wound on two large-diameter rollers of the combination roller respectively; and a bowstring connected with the tension spring is wound on a small-diameter roller of a combination pulley. Due to the adoption of the vertical crossbow body, the crossbow has compact and simple structure and good compactness; and the combination roller and the tension spring are arranged in the crossbow, so that the initial arrow ejecting speed of the crossbow is increased, and labor-saving operation is realized.

The invention discloses a duel-voltage, duel-maintenance and duel-follow current driving circuit. A signal input end of a driver comprises six adjusting knobs, and a signal output end of the driver is connected with an electromagnetic valve; a CPU (Central Processing Unit), an input circuit, a current comparison circuit and a power driving circuit are arranged in the driver; all the adjusting knobs are connected with an input circuit which is connected to digital-to-analogue conversion ports (AD0-AD3) of the CPU; the CPU outputs an excitation signal, a high-side driving signal and a low-side driving signal to a signal input end of the power driving circuit after calculating the corresponding time through AD conversion; signals of a high-maintenance current adjusting knob and a high/low-maintenance current adjusting knob are input to the current comparison circuit and are processed by the current comparison circuit to be output and connected to the high-side driving signal input end of the power driving circuit; and a signal output end of the power driving circuit is connected with the electromagnetic valve.

The invention discloses an air-compression type tennis ball serving machine with a high initial velocity. The air-compression type tennis ball serving machine comprises a ball collecting box, a ball inlet pipeline and an adjusting rod, wherein moving wheels are mounted on the left side of a support leg, an air compressor is arranged above an air storage tank, a barometer is mounted on the left side of the air compressor, a second drive motor is arranged above the barometer, the top end of the adjusting rod is connected with a fixing ring, a ball outlet is formed in the fixing ring, and the right side of the fixing ring is connected with a bellows. The air-compression type tennis ball serving machine with the high initial velocity is provided with ball handling sticks, tennis balls in the ball collecting box can be taken out one by one in sequence, and the problems that a ball handling pipeline is easily blocked and gets stuck usually and the like are solved; an elastic plate is fixed in the ball handling pipeline and enables the tennis balls to accumulate elastic potential energy in the bent position of the elastic plate, so that the tennis balls have the higher initial velocity when served; compared with an ordinary electric roller type ball serving machine, the ball serving machine adopts the air compression principle, serves balls more quickly and doesn't easily get stuck and the like.

The invention discloses a pneumatic hydrodynamic linkage spray dust reduction device for blasting a working face. The device comprises a water pipe connected with a purified water curtain device, a water pipe is transversely fixedly connected to a bracket, a vertically arranged connecting rod is hingedly connected with the lower portion of the free end of the bracket by a rotating shaft, the connecting rod is provided with a hook, and an iron plate is arranged at the lower end of the connecting rod; a quick valve is installed on the water pipe below the bracket, a valve stem of the quick valveand a transversely arranged rotating rod are linked, the rotating rod passes through the hook and is positioned by the hook, and a heavy hammer is hanged on the free end of the rotating rod; the lower end of the water pipe is connected with an air inlet pipe and a water inlet pipe through a Y-shaped triplet, and regulating valves are respectively arranged at the ends of the air inlet pipe and thewater inlet pipe. The device can greatly improve the on-site working environment, ensure the health of personnel, and have simple device manufacturing, easy material obtaining and good economic benefits.

The invention discloses a nitrogen trifluoride plasma cleaning device which comprises a shell, an electrolytic bin and a thermal contact. An opening is formed in the left side of the shell and fixedly connected with the left end of a shell of a cleaning bin. An opening is formed in the left side of the cleaning bin and in threaded connection with a bin cover. Strip-shaped plate electrodes are bonded to the inner side wall of a cavity of the cleaning bin. Round plate electrodes are bonded to the inner wall of the bottom of the cleaning bin and the inner wall of the bin cover correspondingly. The shell of the cleaning bin is sleeved with a spiral coil. A particle accelerator is connected with the right end of the cleaning bin through a made-to-order arc pipeline. The right end of the cleaning bin is connected with a vacuum pump through a conduit. The vacuum pump is fixedly mounted inside the shell, and connected with a tail gas treatment device through an exhaust pipe. The thermal contact is fixedly connected with an internal support of the cleaning bin. The thermal contact and a calibration block are connected with a voltmeter through wires correspondingly. According to the nitrogen trifluoride plasma cleaning device, nitrogen trifluoride serves as an ion supplying source, cleaning is conducted in a plasma corrosion mode, and circuit boards and components are effectively prevented from being damaged.

The invention provides a nanolayer lubricating diamond grinding wheel grinding device based on an impact wave cavitation effect for solving the problem that a grinding solution affected by an air barrier is hard to enter a grinding core region. The device specifically comprises a control system, an accelerating module, an impact wave accelerating module, a machining module and a recovery module. The control system controls operation of the device; the accelerating module is composed of an accelerating pipe, a small La Farr pipe and the like, so that nanoparticles gain initial speeds; the impact wave accelerating module composed of an electromagnetic coil, an impact head, an impact ball, a wave collector, a large La Farr pipe and the like generates two wave sources, wherein one of the wavesources cleans impurities on the surface of the grinding wheel while the other one impacts the nanoparticles with initial speeds to the surface of the grinding wheels to form a nanolayer; in the machining process, the nanoparticles in the nanolayer are released to the grinding core region autonomously, so that the grinding region is self-lubricated and cooled; and the recovery module is used for recovering the nanoparticles to use the nanoparticles repeatedly. The nanolayer lubricating diamond grinding wheel grinding device not only improves the lubricating and cooling effect, but also meets an environmental-friendly development idea.

The invention discloses a rotor wing unmanned aerial vehicle capable of approaching fast. The rotor wing unmanned aerial vehicle comprises a fuselage body, a launching shell and a launching device, wherein a coaxial double-blade device is arranged at the top of the fuselage body; the coaxial double-blade device comprises an inner shaft, a first bevel gear is arranged at the bottom of the inner shaft, and an upper rotating disc is arranged on the top position of the inner shaft; an outer shaft is arranged in the middle part of the inner shaft in a sleeving connection mode, and a task device isarranged on the lower part of the fuselage body; the launching shell is matched with the fuselage body of foldable blades, the launching shell comprises two cambered-surface shells which are same in size, wherein the cambered-surface shells are connected with each other in a matched mode; and the launching device is internally provided with a launching cavity matched with the launching shell, andthe launching device is internally provided with a device for catapulting the launching shell. The rotor wing unmanned aerial vehicle overcomes the technical shortcomings of the prior art, has a reasonable structure, adopts coaxial propeller-reversing layout, has the foldable blades, and can quickly approach a target area for hovering or flight operation.

The invention discloses a vortex ring exciter based on pressure loss control. The vortex ring exciter comprises a fan, an air supply main pipeline, cut-off devices, a convergent nozzle and a plurality of opposite-impact cut-off pipelines, wherein the fan is arranged at the inlet end of the air supply main pipeline, the convergent nozzle is arranged at the outlet end of the air supply main pipeline, the plurality of opposite-impact cut-off pipelines are uniformly distributed in the circumferential direction of the air supply main pipeline, an inlet of each opposite-impact cut-off pipeline is in communication with an upper inner cavity of the air supply main pipeline, an outlet of each opposite-impact cut-off pipeline is in communication with a lower inner cavity of the air supply main pipeline, and the cut-off devices are arranged at the inlets of the opposite-impact cut-off pipelines. According to the vortex ring exciter based on pressure loss control, opposite-impact type cut-off of air flow is achieved, reverse air flow of an opposite-impact flow channel is used for replacing an original cut-off plate, and closing and opening of a main flow channel of the air supply main pipe are achieved; and the structure is simpler, the service life of equipment is prolonged, and the quality of produced vortex rings is improved.

The invention provides a golf ball material composed of a polymer material that contains spherical inorganic particulates, which is well adapted for use in at least one component of a golf ball composed of one or more layers. The golf ball material of the invention improves the flight performance of golf balls compared with polymer materials containing amorphous inorganic particulates.

The invention provides a nano layer lubrication diamond grinding wheel grinding method based on a shock wave cavitation effect. The method is characterized in that after an air pressure adjusting valve is opened, shock waves generated by an accelerating tube push nano particles to move forwards, and then the nano particles are accelerated by a small laval tube to obtain a high initial speed; meanwhile, a wave source of a shock wave accelerating module generates high-frequency and high-strength shock waves to impact the nano particles with the initial speed, so that the nano particles are continuously accelerated downwards in the axial direction of a large laval tube until the nano particles are embedded into the surface of a grinding wheel at the highest speed to form a nano layer; the other wave source is used for cleaning impurities on the surface of the grinding wheel; and in the machining process, the nano particles of the nano layer are autonomously released in a grinding core area, so that self-lubricating cooling in a grinding area is achieved. The method greatly enhances the lubricating cooling effect, and also conforms to the concept of green development.