143 results about "High lift" patented technology

The invention relates to a water pump scheduling method for estimating lift based on data driving, which comprises the following steps: calling structural information and sensing data, calculating friction loss and structural symmetry, extracting differential pressure data flow gradient, judging load matching degree, activating path nodes, identifying differential pressure data change sections, and mapping a calculation path. According to the method, dynamic correction and compensation of input parameters are achieved by means of conjoint analysis of the structural features of the water inlet and the water outlet and flow pressure difference data, and comprehensive judgment of the working condition matching degree and the periodic change state is combined, so that the flow resistance trend is judged, and the calculation result is corrected. The adaptability to cold load fluctuation and loop temperature difference change is enhanced, the response capability of lift calculation to water body characteristic change is improved by introducing flow resistance trend and viscous state factors, and the calculation stability of the model in different operation sections and the calculation accuracy of the model in complex working conditions are optimized by using a path activation configuration and output switching mechanism.

A skew sensing apparatus for detecting skew in at least one, or a plurality of control surfaces of a vehicle. The apparatus includes a tension cord which is held under tension between a) a first spring associated with a sensor and a sensor target and b) an opposing second spring. During normal operation, the apparatus is configured to maintain said sensor target in a first position relative to said sensor, thereby indicating said normal operation. During an abnormal operation, the apparatus is configured to shunt said tension cord such that said sensor target is translated to a second position, relative to said sensor thereby indicating said abnormal status.

A wing for an aircraft, comprising a main wing and a high lift assembly which includes a body, and an assembly connecting the body to the main wing, so the body is movable between a retracted position and an extended position. The assembly comprises a track extending along a longitudinal axis between first and second ends, with an intermediate portion therebetween. A roller bearing ensures that the track moves along the longitudinal axis. The roller bearing comprises bearing units, each mounted to the main wing and having a bearing surface for engaging the elongate track. The units include a first and second end units and an intermediate unit wherein, relative to the longitudinal axis, the intermediate unit is positioned between the first end unit and the second end unit. The elongate track comprises a recessed portion which, in the retracted position, aligns the intermediate unit.

The utility model relates to the technical field of centrifugal pump production, in particular to a pump cover punching tool of a high-lift circulating pump, which mainly comprises an inner clamping component, a water inlet hole punch forming component and a mounting hole punch forming component. The mounting hole punch forming assembly is used for punching a mounting hole in a mounting convex plate of a pump cover blank, the inner clamping assembly is used for providing inner clamping support for the pump cover blank, and bearing pressure is provided in the water inlet hole punch forming and mounting hole punch forming processes, in this way, the cover body deformation condition can be avoided in the punching machining process, and the service life of the pump cover blank is prolonged. And the requirement of punching the lateral water inlet hole and the axial mounting hole at the same time is met.

The present application provides a kind of mechanical arm for spray seeding greening, including flexible connecting pipe, one end of the connecting pipe is connected with platform, the other end is connected with spray gun seat, connecting rod A is fixedly connected with the spray gun seat, connecting rod B is rotatably connected with the connecting rod A, the platform is fixedly connected with support, the connecting rod B is rotatably connected with support, further including drive mechanism, the drive mechanism is connected on the support, and the output end of drive mechanism is rotatably connected with connecting rod A, to drive connecting rod A to rotate around the output end of drive mechanism and the rotation point of connecting rod A while doing vertical motion.The present application changes the bending mode of the connecting pipe uniformly when in use by the structure, can reduce the wear and tear of connecting pipe and pressure loss in pipeline, improve lift, avoid blockage, convenient to replace, wide source, strong availability, the present application is light in weight, low in cost, adjustable spray seeding angle is large, and spray seeding efficiency is high.

A heat exchanger for heating, ventilation, air conditioning and refrigeration (HVACamp; a compressor system of an HVACamp (R, R) system, the compressor system comprising one or more compressors configured to circulate a working fluid through the HVACamp; a vapor compression system of an R system, each compressor of the one or more compressors having a pre-rotating vane (PRV) and a variable geometry diffuser (VGD), the PRV and the VGD configured to operate to adjust a capacity of the compressor system. The compressor system further includes a controller having a memory and processing circuitry, where the memory includes instructions stored thereon that, when executed by the processing circuitry, cause the processing circuitry to: determine a head coefficient for each compressor of the one or more compressors, and determine a head coefficient for each compressor of the one or more compressors; determining a compressor lift for each of the one or more compressors based at least in part on the head coefficient, comparing the compressor lift for each of the one or more compressors to a low lift threshold and a high lift threshold, and operating each of the one or more compressors in a first mode or a second mode based on a comparison of the compressor lift to the low lift threshold and the high lift threshold.

The invention belongs to the technical field of water conservancy projects, and discloses an extra-high arch dam bank slope dam section concrete first bin high lift layer construction method which comprises the following steps: step 1, determining dam concrete construction layering, step 2, establishing a template support model, step 3, carrying out stress checking calculation and the like. According to the extra-high arch dam bank slope dam section concrete first bin high lift layer construction method, PKPM structural calculation software is combined with the structural form of a dam, the distance from an upstream excavation face is combined, a model is established for structural stress and stability analysis, high lift layer construction is achieved, the highest lift layer height is large, multi-bin parallel one-time pouring is achieved, the pressure of a standby bin is relieved, and the construction efficiency is improved. The construction efficiency is improved. According to the ultrahigh arch dam bank slope dam section concrete first bin high rising layer construction method, the pouring height and quality of each layer can be effectively controlled, the uniformity and compactness of concrete are ensured, and the construction precision of the whole structure is improved.

A high lift system monitoring arrangement (24) includes: a sensor (32), a monitoring unit (34) connected to the sensor (32), wherein the monitoring unit (34) includes: an acquisition module (46), that acquires an analog sensed information (AI) from the sensor (32), a processing module (48) having a first processing circuitry (48A) and a second processing circuitry (48B), different from the first circuitry, wherein the first processing circuitry (48A) processes the analog sensed information (AI) into a first digital sensor data (DD1), the second processing circuitry (48B) processes the analog sensed information (AI) into a second digital sensor data (DD2).

The high-lift horizontal submersible pump comprises a protective shell, the end, close to a water inlet of a submersible pump body, of the protective shell is fixedly connected with a positioning cylinder through a bolt, the end, away from the protective shell, of the positioning cylinder is fixedly connected with a filtering cover, and the inner side face of the positioning cylinder is fixedly connected with a filtering plate; embedding grooves are correspondingly formed in the positions, opposite to the filter plates, of the surface of the filter cover, the protective shell is fixedly connected with a main vertical plate through a fixing ring, the main vertical plate is fixedly connected with a base through a main transverse plate, and fixing blocks are symmetrically connected to the two sides of the base. According to the high-lift horizontal submersible pump, through cooperation of the filter cover, the filter plate, the positioning cylinder, the fixing ring and the base, the water inlet of the high-lift horizontal submersible pump can be provided with a double-filter structure, the double-filter structure can be conveniently assembled, disassembled and cleaned, and the probability that the high-lift horizontal submersible pump breaks down is reduced.

Disclosed are a wing for an aircraft, a leading edge high lift assembly and an aircraft, the wing comprising a main wing and a leading edge high lift assembly, the leading edge high lift assembly comprising a slat and a connecting assembly movably connecting the slat to the main wing, and a connecting assembly for connecting the slat to the main wing such that the slat is movable between a retracted position, a first extended position, and a second extended position, where the connecting assembly comprises an elongate slat track, a first end and / or a middle portion of which is mounted to the slat, the slat track being mounted to the main wing by means of a roller support. The aim of providing a wing with a beneficial ratio of aerodynamic performance to noise resulting from the extension of the slat is achieved, in which the slat track and the roller support are configured such that, in a retracted position and a first extended position, the slat rests against the main wing and, in a second extended position, the slat rests against the main wing. A gap is formed between the trailing edge of the slat and the leading edge of the main wing.

The invention belongs to the technical field of submersible pumps, and provides a medium-high-lift full-cross-flow submersible mixed-flow electric pump which comprises a water suction chamber, an impeller and a water outlet cylinder which are coaxially connected in sequence, a rotating shaft is arranged in the center of the impeller, the two ends of the rotating shaft are in rotatable supporting connection with the water suction chamber and the water outlet cylinder respectively, and a motor shell is arranged on the outer side of the impeller. The two ends of the motor shell are fixedly connected with the water suction chamber and the water outlet cylinder respectively, a wet stator is fixed to the inner side of the motor shell, a permanent magnet rotor is fixed to the outer side of the impeller, the wet stator drives the permanent magnet rotor to drive the impeller to rotate, and a fixing sleeve for fixing the permanent magnet rotor is arranged on the outer side of the impeller. And gaps are formed between the end parts of the two sides of the fixing sleeve and the water suction chamber and between the end parts of the two sides of the fixing sleeve and the water drum and are tooth-shaped. And through the arrangement of the tooth-shaped gaps, the path length of the gaps is prolonged, and a vertically staggered blocking structure is also formed, so that particulate matters in a water body can be prevented from entering the motor cavity.

The application discloses a kind of high lifting gantry front and rear movement operation control method, including front and rear movement handle, operation control method includes the following steps: step 1, monitoring front and rear movement handle output signal;Step 2, if front and rear movement output signal C1 is in bM to M / 2 or M / 2 to (1-b)M, execute step 3, if front and rear movement output signal C1 is in 0 to bM or (1-b)M to M, execute step 4, wherein 0<b<0.5;Step 3, front and rear movement handle slowly moves, forklift gantry slowly moves;Step 4, front and rear movement handle quickly moves, forklift gantry quickly moves, the present application is by identifying gantry front and rear movement direction, control oil pump motor different speed, so that gantry front and rear movement speed is equal, improve gantry front movement speed, improve work efficiency, by identifying fork lifting height, different fork lifting height control different gantry front and rear movement speed and front and rear movement start acceleration, reduce high position operation shake, improve high position operation stability.

The invention relates to the field of submersible pump protection, in particular to a light submersible pump with a chopping and tearing high-lift protection structure, and aims to solve the problem that a rotary blade or a cutting disc driven by a driving shaft is usually arranged near a water inlet of some existing submersible pumps with cutting or tearing functions to crush entered sundries. Fine impurities subjected to crushing treatment easily block filter holes, cleaning is inconvenient, frequent shutdown maintenance is needed, and long-term stable unattended operation cannot be achieved. According to the light submersible pump with the chopping and tearing high-lift protection structure, in the rotating process of a cleaning conical block, the conical outer wall of the cleaning conical block moves relative to the surfaces of flow guide cones on the two sides; the flexible scraping strips at the ends of the cleaning conical blocks make contact with the hole walls of the main flow filtering holes and stretch into the main flow filtering holes, and along with continuous rotation of the cleaning conical blocks, the flexible scraping strips stretching into the holes sweep attachments on the inner walls of the holes and the intercepting grid bars.

1. The name of the design product: Car roof tent (side opening lifting H-01). 2. The use of the design product: used as a tent installed on the roof for accommodation, rest and leisure. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view.

A leading edge high lift assembly (6) including a slat (7), and a connection assembly (9) movably connecting the slat (7) to a main wing (5), wherein the connection assembly (9) includes a slat track (17) having a first end (21) or an intermediate portion (25) mounted to the slat (7) and the slat track (17) is mounted to the main wing (5) by a roller bearing (27) having bearing units (34a-c) mounted to the main wing (5) and having a bearing surface (22) engaging an engagement surface (35) on the slat track (17), the bearing units (34a-c) include a first end roller unit (34a) and an intermediate roller unit (34b) wherein the intermediate roller unit (34b) is positioned between the first end roller unit (34a) and the second end (23) of the slat track (17).

The utility model relates to the technical field of single-folded rope groove winding drums, and discloses a single-folded rope groove winding drum for a high-lift winch, which comprises a support frame I, a winding drum is rotatably connected to the top of the support frame I, a support frame II is arranged on one side wall of the support frame, and a traction assembly is arranged on the outer wall of the support frame II. A dismounting assembly is arranged on the side wall of the winding drum; the traction assembly comprises a second traction roller, the outer wall of the second traction roller is arranged on one side of the second supporting frame, a motor is arranged on the side wall of the second supporting frame, the output end of the motor is fixedly connected to the side wall of the second traction roller, and a first connecting block is fixedly connected to the interior of the second supporting frame. According to the utility model, the motor is started to drive the first traction roller to rotate and then drive the second traction roller at the top to rotate, when the steel wire ropes with different sizes are encountered, the first traction roller rotates to compress the first spring in the second support frame, and the first spring retracts due to the elastic change of the spring, so that the effect of adapting to the steel wire ropes with different specifications is achieved.

The utility model relates to the technical field of steel wire rope winding error compensation, in particular to a steel wire rope multi-layer winding crane positioning error compensation device which comprises a lifting part and a lifting balance group, the lifting part comprises a lifting steel wire rope group; the lifting balance group is used for keeping the balance of a rope body included in the lifting part in the use process, and comprises a balance pulley and a balance arm; the lifting steel wire rope set comprises a main lifting mechanism and an auxiliary lifting mechanism. Based on the structural arrangement, the problems that the winding length of the steel wire rope is unbalanced, the steel wire rope is difficult to adjust and the rope body is twisted due to the manufacturing error of the winding drum and the extension and extension of the steel wire rope in the current ultrahigh-lift lifting process can be solved, and the stability, the balance and the safety in the lifting process are improved.

The invention relates to an unmanned aerial vehicle ejection control method based on plasma pneumatic gain and a medium, and relates to the technical field of unmanned aerial vehicle system design and launching. In the scheme, the current flight stage of the unmanned aerial vehicle is judged, in response to a judgment result of an inertia climbing stage, an expected pitch angle is set as a catapult pitch angle, a leading edge DBD is started at rated power, and meanwhile, a trailing edge DBD is kept closed; and in response to the judgment result of the unpowered glide / glide stage, controlling the unmanned aerial vehicle at the highest lift-drag ratio, starting the trailing edge DBD at the rated power, calculating the difference value obtained by subtracting the reference angle of attack from the real-time angle of attack in real time, judging whether the difference value is greater than a preset first threshold value or not, and if so, starting the leading edge DBD at the maximum power until the difference value is not greater than the preset first threshold value. Compared with the prior art, the terminal height is increased or the endurance is prolonged, and the flight performance of the ejection unmanned aerial vehicle is improved.

1. Name of the product in this design: Insulated Barrel (High Lift). 2. Purpose of this design: For food insulation. 3. The key design features of this product are the combination of shape and pattern. 4. The image or photograph that best illustrates the design's key points: a 3D model.

The utility model discloses a kind of deep vertical shaft high lifting door machine hoisting anti-rotation devices, comprising: at least one pair of rollers, opposite setting in the two sides of the beam of high lifting door machine;At least one pair of limit guide rail, opposite setting on the two sides of shaft wall of vertical shaft, and extend along the height direction of shaft wall;Guide base, connected to the top of limit guide rail, including the two arc-shaped guide plates of setting in the top entrance of limit guide rail two sides, two arc-shaped guide plates cooperate with each other, to form a along the entrance direction reduction guide channel, for guiding roller to slide into limit guide rail.When beam moves to the mouth of deep vertical shaft, the roller of its two sides first contact arc-shaped guide plate of guide channel side edge, is smoothly guided to the accurate track of limit guide rail, beam is driven along limit guide rail lifting by high lifting door machine, to realize the smooth operation of hoisting and effective anti-rotation, improve the security of overall operation.

1. The name of the design product: hydraulic slurry pump (high lift SASH4-180). 2. The use of the design product: for conveying slurry with solid particles. 3. The design points of the design product: in the combination of shape and pattern. 4. The picture or photo that best indicates the design points: perspective view. 5. The bottom of the design product is not easy to see or not visible during use, omit the top view.

This invention relates to the field of centrifugal pump technology, and in particular to a multi-stage centrifugal pump capable of changing operating modes. It includes: a power unit, a low-lift pump, a high-lift pump, and a pump shaft; the low-lift pump is internally connected to the outlet of the high-lift pump via a low-lift cooling water circuit; the low-lift pump casing has a low-lift vent; the high-lift pump internally is connected to the outlet of the low-lift pump via a high-lift cooling water circuit; the high-lift pump casing has a high-lift vent. Both the low-lift and high-lift pumps are connected to the same power unit. When using centrifugal pumps for water pumping, the system can flexibly select between the low-lift and high-lift pumps based on the height of the water demand location, thereby ensuring the water flow rate. Adjusting the centrifugal pumps ensures that they are always operating under optimal conditions, maintaining the optimal water supply while preventing motor overload.

The application provides a high-suction self-priming centrifugal pump, comprising a pump body and an impeller, the pump body has a volute inside, the impeller is located in the volute, and the impeller is driven to rotate by a power device; a water storage space is arranged at the outlet of the pump body, the outlet of the volute extends into the water storage space through a flow guide channel; an air-liquid mixing device is arranged between the inlet of the volute and the inlet of the pump body, air on the inner wall of the inlet is sucked into the air-liquid mixing device by using the pressure difference formed in the liquid flow process; a circulation channel is arranged in the volute and communicates with the air-liquid mixing device, and is used for forming a backflow jet flow; the backflow jet flow is used for carrying out secondary shearing and mixing on the air-liquid mixed flow. The whole design is simple, the manufacturing and maintenance costs are low, the high-suction self-priming ability can be maintained under complex working conditions, and the defects of slow exhaust, difficult start and limited suction of the existing self-priming centrifugal pump can be effectively overcome.

A high lift assembly (7) including: a high lift body with a high lift structure (8) and an internal volume (22), and a connection assembly (10) extending through an aperture (18) in an outer skin (20) of a leading edge of a main wing (5), the connection assembly (10) includes an elongate track (16) and a first and second connectors (12, 14), the elongate track (16) is mounted to the main wing (5) and moves along a track longitudinal axis (24), and the first and second connectors (12, 14) connect the elongate track (16), the first connector (12) is between the internal volume (22) and the outer skin (20), the second connector (14) has a longitudinal axis transverse to the leading edge of the high lift body and connects to the high lift body and the high lift structure has an opening (40) for the elongate track.

This invention discloses a high lift-to-drag ratio, long-endurance, low-speed airfoil, revealing its maximum relative camber, maximum relative thickness, and the curve equations satisfied by its upper and lower edges. The origin of the coordinate system containing the airfoil is defined as the leading edge of the chord. The X-axis coincides with the chord line, pointing from the leading edge to the trailing edge of the airfoil. The Y-axis is perpendicular to the X-axis, pointing in the direction of the airfoil's curvature. The chord length is defined as C; therefore, the maximum relative camber is 6%C, and the maximum relative thickness is 4.5%C. The airfoil of this invention exhibits a higher lift-to-drag ratio and a higher lift coefficient while maintaining a lower drag coefficient. It reduces the weight of the wing structure, and its thin, curved shape results in a smaller internal wing cavity, optimizing aircraft weight while concentrating stress on the structure.

The invention discloses a propeller airfoil design method which is applied to a high lift-drag ratio airfoil and comprises the following steps: acquiring a general expression of an airfoil curve of the high lift-drag ratio airfoil in a standard coordinate system; the airfoil curve comprises an upper edge curve and a lower edge curve; the general expression of the airfoil profile curve comprises a first coefficient for the upper edge curve and a second coefficient for the lower edge curve; obtaining the preset values of the first coefficient and the second coefficient; determining a first expression according to the general expression and the values of the first coefficient and the second coefficient; determining a first airfoil profile curve in the standard coordinate system according to the first expression; determining the first airfoil profile curve as an airfoil profile curve of a first airfoil profile; and the first airfoil profile is the optimized airfoil profile with the high lift-drag ratio. The invention further discloses electronic equipment applying the method and a readable storage medium.

A drive assembly for driving a movable flow device of an aircraft. The drive assembly has a single actuator comprising a longitudinal transmission element, a first support element and a second support element. The longitudinal transmission element of the single actuator is oriented transversely to an extending direction of the movable flow device, is to be mounted to a fixed support structure of the aircraft, and acts on the first and second support elements such that the movable flow device moves between extended or retracted positions relative to the fixed support structure. Also a drive system, a high lift system, an aircraft wing, an aircraft and a method of actuating a movable flow device.

The invention relates to a wing for an aircraft, a leading edge high lift assembly for the wing and the aircraft. The wing includes a main wing and a leading edge high lift assembly including a slat and a connection assembly connecting the slat to the main wing such that the slat is movable between a retracted position, a first extended position, and a second extended position, where the connection assembly includes an elongate slat track, where the slat track is configured to be movable between a first extended position and a second extended position. A first end and / or a middle portion of the slat track is mounted to the slat, where the slat track is mounted to the main wing such that the slat track is movable along a track longitudinal axis. The object of providing a wing with a beneficial ratio of aerodynamic performance and noise resulting from the extension of the slat is achieved in that the slat track is mounted to the slat rotatable about the slat axis, and the connection assembly comprises a slat angle mechanism, a slat angle mechanism is mounted to the slat and configured to control an angle of the slat about the slat axis as the slat moves.

The invention discloses a compressible turbulence frictional resistance decomposition method and device, a medium and equipment. The method comprises the following steps: acquiring an instantaneous variable of a compressible turbulence flow field to be subjected to resistance decomposition; calculating an average value and a pulsation value of a plurality of single variables in the vorticity transport equation based on the instantaneous variables; respectively calculating the spatial derivative value of the average value, the spatial derivative value of the pulsation value and the spatial derivative value of the instantaneous variable of each single variable; according to the average value, the pulsation value and the spatial derivative value of each single variable, calculating the average value and the pulsation value of a plurality of combined variables; performing integral calculation on a plurality of parameters of the vorticity transport equation based on the average value and the pulsation value of the plurality of combined variables; and calculating the contribution value of each parameter to the compressible turbulence friction resistance according to the integral calculation result of each parameter. The device fills the blank of compressible fluid mechanics, can be applied to high lift devices such as vortex generators, and has the advantages of high comprehensiveness, diversity and universality.

The utility model relates to a high-pressure synergistic impeller suitable for a multi-stage centrifugal pump, which comprises a diffuser, diffusion blades arranged in the middle of the diffuser, centrifugal fan blades arranged in the diffuser, an adjusting mechanism fixed on the side surface of the diffuser, and a line pipe fixed on the side surface of the adjusting mechanism. The blade angle of the diffuser can be adjusted, the diffuser has good adaptability to fluids with different viscosities, and kinetic energy of the fluids can be converted into pressure energy to the maximum extent under the condition that it is ensured that flow separation and vortexes are reduced; by adjusting the blades of the diffuser, the device not only can pressurize water, but also has a better pressurizing effect on oil substances, and can obtain higher lift.