34results about How to "Uniform acceleration" patented technology

The invention relates to a two-stage pressure atomizer nozzle with a nozzle body (30) having a mixing chamber (39) which is connected to an outside space via a nozzle outlet bore (33), and with a first feed duct (42) with a feed bore (41) for a liquid (37) to be atomized, through which feed bore said liquid (37) can be fed, free of swirling and under pressure, at least one further feed duct (36) for a portion of the liquid (37) to be atomized or for a second liquid (37') to be atomized opening into the chamber (39), through which feed duct said liquid (37, 37') can be fed under pressure and with swirling. The feed bore (41) of the first feed duct (42) lies on one axis (34) with the nozzle outlet bore (33). It is defined in that the outlet-side diameter (da) of the nozzle outlet bore (33) is at most as large as the diameter (dz) of the feed bore (41) and the length (L) of the nozzle outlet bore (33) is at least twice to at most ten times the outlet-side diameter (da) of the nozzle outlet bore (33).

A means of transport, an apparatus and a method for accelerating a vehicle in the case of a line start at a traffic light system including determining a likelihood of a predefined vehicle being able to pass through the traffic light system during a current or imminent green phase, accelerating the vehicle in accordance with a signal from an electronic towbar system if the likelihood is higher than a predefined threshold value, and accelerating the vehicle to a lesser extent if the likelihood is lower than the predefined threshold value.

The capillary gun for delivery of ballistic particles to a target includes an inner capillary tube disposed concentrically within an outer capillary tube with the input end of the inner tube connected to a channel through which a continuous flow of high speed helium gas carrying ballistic particles is introduced. The outer capillary tube, which is connected to a vacuum source, has an outlet end that extends slightly beyond the end of the inner tube. A cap placed over the output end of the outer tube has an opening at its center through which the particles exit the device. The vacuum source applies continuous suction to the space between the outer tube and the inner tube, drawing the gas from the output end of the inner tube while the inertia of the accelerated particles causes them to continue in the axial direction through the exit opening for delivery to the target. Multiple particle injectors provide for the concurrent injection of different materials without disruption of the gas flow.

The invention relates to a multi-impingement-surface for cooling a wall, capable of planedly and conductively contacting with the surface of a wall to be cooled and comprising a plurality of pore plate surfaces and a plurality of splicing surfaces. The pore plate surfaces comprises a plurality of straight through holes as the pore plate constructions distributed on the surface of the pore plate surfaces and the splicing surfaces and the pore plate surfaces are alternatively stacked and the slicing plates are distributed on the surface of the pore plate layer and correspondingly spliced with the pore plate layer, wherein each splice of one splicing layer is respectively aligned with one of the splice of other splicing layers and each straight through hole of one pore plate layer is staggered relative to the other straight through hole of the adjacent pore plate layer, therefore the multi-impingement-surface is loaded by the pressure using a cooling fluid at a flat side and the cooling fluid flows through the straight through hole and the middle clearance between the splice and the pore plate layer and thus the heat flow from the wall is discharged along with the cold flow.

The invention relates to a novel speed adjusting controller for a children electromobile. The novel speed adjusting controller comprises a pulse width modulation module, a power interface module, a motor interface module, a speed adjusting interface module, a charging brake interface module and a field-effect tube module. The output end of the pulse width modulation module is connected with the field-effect tube module which is connected with the motor interface module through a protective relay module, the voltage feedback end of the pulse width modulation module is connected with the speed adjusting interface module through a speed adjusting control module, the power end of the pulse width modulation module is connected with the power interface module, and the voltage feedback end of the pulse width modulation module is further connected with the charging brake interface module through a charging brake control rotation stopping module. According to the novel speed adjusting controller, the modules are organically integrated, the various functions such as duty ratio adjustment, speed adjusting control signal supplementing and correcting, temperature compensation, undervoltage control and galloping protection are achieved, the control process of the children electromobile is safe, safe riding of children is guaranteed, and the service life is prolonged.

The invention provides a micro-pore anode used for a cluster plasma spray gun and a cluster plasma spraying method. The micro-pore anode comprises an anode front part, an anode middle part and an anode rear part, wherein the anode front part is designed with a powder conveying channel and a protective gas conveying channel; the inner diameter of an outlet of the micro-pore anode is limited withina range of 0.5-3 millimeters; micro-pore anode compression effect is utilized to obtain plasma micro jet flow which is focused in energy density and is small in divergence, and a local area on the surface of a to-be-sprayed workpiece is instantaneously molten while the integral temperature of the workpiece is prevented from rising, so that a coating and a basal body generate metallurgical bonding;the powder conveying channel which is in peripheral ring-shaped distribution is used for enabling powder to form tapered powder flow with a pre-designed included angle and small divergence, so that powder is heated and accelerated more uniformly in plasma micro jet flow to obtain a sprayed coating which is uniform in chemical component, is compact in micro structure, and defines metallurgical bonding.

The invention provides a device for preheating a cement raw material for manufacturing cement clinker, and relates to the technical field of cement production, the device comprises a treatment box body, the treatment box body is a rectangular structure, and a support frame body is arranged at the bottom of the treatment box body; a rotating rod is rotationally mounted at the left end of the interior of the treatment box body; a motor is arranged on the right side of the treatment box body; the right end of the rotating rod is connected with an output shaft of the motor; a discharging box is arranged in the middle of the bottom of the treatment box and is of a rectangular structure. The cement raw material stirring device is provided with the longitudinal stirring mechanism, the transverse stirring mechanism and the vibration screening mechanism, cement raw materials can be fully stirred uniformly through the three mechanisms, the cement raw materials can be fully heated, the processing quality is guaranteed, the three mechanisms work synchronously, the processing efficiency is guaranteed, and the problems that an existing device is single in stirring mode and poor in stirring effect are solved. The stirring is not uniform enough, so that the cement raw material cannot be fully heated, and the raw material treatment is not thorough.

The invention provides a conical powder feeding device for ultra-high-speed plasma cladding and an ultra-high-speed plasma cladding method. The conical powder feeding device comprises a central cylinder, a water-cooled inner spacer, a powder guide spacer, and a protective air spacer and a water-cooled outer spacer which are assembled to the outside from a central shaft. The entrance of the centralcylinder is axially connected with the anode of a cladding gun of a plasma cladding system; the conical powder feeding device delivers the powder to a plasma jet uniformly at a high speed, under themechanical constraint of the outlet oblique conical surface of the powder guide space, a conical powder fluid with a pre-designed angle is formed, and finally the fluid focuses on the central shaft, so as to obtain the powder jet with high concentration, high speed, uniform distribution and small divergence, and under the ultra-high-speed plasma cladding condition of above 10-200m/min relative movement speed of the plasma cladding system and a workpiece, a cladding layer with thin thickness, uniform chemical composition, low surface roughness, low dilution rate and dense microstructure can beobtained.

The invention discloses a dynamic runway for taking off and landing of an airplane, which comprises driving shafts, a bearing shaft, a circulating track, an adjustable-speed motor and a truss, the two ends of the truss are provided with the driving shafts which are rotatably connected with the truss, the two driving shafts are horizontally arranged in parallel front and back, and the circulating track which is in transmission connection with the driving shafts is wound on the driving shafts; a bearing shaft which is horizontally arranged in parallel with the two driving shafts is arranged between the two driving shafts, the bearing shaft is arranged in the middle of the circulating crawler belt and used for supporting the circulating crawler belt, a speed regulating motor is fixedly arranged on the truss, and the speed regulating motor is in transmission connection with the driving shafts. According to the invention, the circulating track and the airplane pulley rotate in opposite directions at the same speed, so that the airplane uniformly takes off in an accelerated manner and lands in a decelerated manner during take-off and landing; when the aircraft takes off, a long runway is not needed, and when the aircraft lands, emergency deceleration is not needed, so that the safety of the aircraft in taking off and landing is improved; the device can be used in various takeoff and landing environments with limited runway length, such as aircraft carriers and mountainous airports, and is wide in application range.

The invention relates to a plasma acceleration propulsion device, in particular to a plasma generation device and method based on a multi-stage magnetic field and a multi-section spray pipe. The technical problem that the specific impulse and thrust are not ideal due to the fact that a plasma generating device with a single-section spray pipe is not favorable for optimizing the configuration of a magnetic field and the trajectory of plasma jet is difficult to control is solved. The device comprises a working medium supply and distribution unit and a plasma generation acceleration unit, wherein the working medium supply and distribution unit comprises a working medium distributor, a second insulator, a transition electrode and a third insulator which are coaxially arranged from inside to outside; the plasma generation acceleration unit comprises n sections of spray pipes, n-1 sections of first insulators, accelerator electric field power supplies corresponding to the spray pipes, electromagnetic coils corresponding to the spray pipes and electromagnetic field power supplies corresponding to the electromagnetic coils; and the n sections of spray pipes and the n-1 sections of first insulators form a spray pipe assembly. The invention further provides a plasma generation method based on the multi-stage magnetic field and the multi-section spray pipe.

The present invention relates to a method for controlling a propulsion operation of a propulsion unit to reach the desired speed of a marine vessel. The method comprises obtaining a target speed configuration indicating the desired speed of the marine vessel, obtaining a current speed value associated with a current speed of the marine vessel, obtaining a fill level value associated with a fill level of one or more ballast tanks of the marine vessel, and controlling the propulsion operation of the propulsion unit to reach the desired speed based on the target speed configuration, the current speed value, and on the fill level value.

In accordance with the present invention one device for locating ferrous object(s) that are visually obscured by a non-magnetic surface material and for temporarily holding a mostly ferrous fastener in the correct position to be affixed until firmly started.

The invention discloses an ignition control method of an inductively coupled plasma processing device. The device is provided with a vacuum processing cavity, a radio frequency power source and a biaspower source, and the radio frequency power source couples a radio frequency signal into the vacuum processing cavity through an inductive coupling coil. The bias power source applies a bias voltagesignal to a base in the vacuum processing cavity through a radio frequency matching network, and the base is used for supporting a substrate to be processed. The method comprises the steps of obtaining a control instruction; and by the bias power source, executing the control instruction to generate a bias voltage signal, wherein the bias voltage signal is a pulse voltage and is used for carryingout plasma ignition together with the radio frequency signal. By applying the method provided by the invention, the starting time of the radio frequency power source and the bias power source is controlled, and the duty ratio and the voltage of the pulse voltage of the bias power source are adjusted, so that the uniform acceleration of the plasma can be realized while the high-efficiency ignitionis realized.