28 results about "High lift" patented technology

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.

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 embodiment of the present application provides a centrifugal pump, which comprises a pump shell, a first driving mechanism, a second driving mechanism, a pump shaft and an impeller arranged in the pump shell; the pump shell comprises a first chamber and a second chamber which are communicated with each other, the shaft center of the pump shaft coincides with the shaft center of the first chamber and the second chamber, the inner diameter of the second chamber is larger than that of the first chamber, the impeller is connected to the end of the pump shaft, the first driving mechanism and the second driving mechanism are connected with the pump shaft and are located on the side of the pump shaft which is away from the impeller, the first driving mechanism is used to drive the pump shaft to rotate, the second driving mechanism is used to drive the pump shaft to move along the shaft center, and the impeller is used to rotate in the first chamber or the second chamber under the driving of the pump shaft. The embodiment of the present application provides a centrifugal pump which can meet the requirements of high lift and high reliability of the pump.

This invention relates to a low-altitude spacecraft capable of both amphibious takeoff and landing, belonging to the field of low-altitude aircraft technology. The invention increases the contact area between the hull and water by combining a flat hull bottom with a horizontal hull section, effectively improving the stability of the spacecraft during water navigation. Simultaneously, an arc-shaped hull lifting section is incorporated. During takeoff and as the spacecraft ascends, water flow is diverted along the arc structure, creating a dynamic water pressure difference above and below the hull, generating an upward lifting force to counteract water drag. Combined with the ground effect, this enhances the lift coefficient, helping the hull quickly rise above the water and complete takeoff. Furthermore, the invention employs a multi-layered, multi-wing layout structure, which, during operation, can generate a high lift coefficient through a power superposition effect, producing an excellent thrust-to-weight ratio and ensuring stable flight of the spacecraft.

1. The name of the design product: water pump shell (high lift JRPH800). 2. The use of the design product: for water pump accessories. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view 1.

The utility model relates to a kind of spray arm and cleaning machine for cleaning machine, including the body extending along length direction, the body is formed with internal hollow flow passage, the body is equipped with with flow passage intercommunication water inlet, spray hole, the cross-sectional area of the flow passage is S1, the sum of the cross-sectional area of each spray hole is S2, S1≥3S2.The utility model will flow passage cross-sectional area with spray hole cross-sectional area sum constraint as S1≥3S2 relationship, this structure balances flow passage and spray hole area from water pressure aspect, to effectively improve cleaning coverage on the basis of maintaining high lift, to improve cleaning effect further.

The utility model relates to bearing technical field especially relates to a novel high temperature sliding bearing, including support pipe, sliding bearing body and shaft sleeve, the device is fixed in the support pipe through the mode of welding through the support ring, the support ring is processed to the size of interference fit with sliding bearing body after welding, to fix sliding bearing body, install sliding bearing body in the support ring again, finally the shaft sleeve is accurately loaded into sliding bearing body, through sliding bearing body effectively reduced the hydraulic loss, is especially key to large flow high lift pump, reduces the impact of fluid to the support rib plate and the additional vibration of fluid when running simultaneously, can discharge the residual medium between the shaft sleeve and sliding bearing body when pump stops, the same inclination angle of sliding bearing body inner wall and shaft sleeve working surface, facilitate quick assembly, and because of gravity effect keeps good centering, the small eccentric moment and gravity direction are contrary when running, make rotor system automatic return, reduce the vibration, prolong the sliding bearing body life.

This disclosure relates to a blade, propeller, powertrain, and unmanned aerial vehicle (UAV). The blade includes a root section and a main body section arranged radially in sequence. The pitch angle of the main body section decreases from a positive value to a negative value radially and away from the root section. The technical solution provided by this disclosure optimizes the angle of attack distribution at different radial positions of the blade by changing the pitch angle, balancing lift and drag. The pitch angle of the main body section near the root section is positive, providing high lift, while the pitch angle of the main body section away from the root section is negative, which can suppress tip turbine noise, reduce noise caused by airflow separation, and simultaneously reduce induced drag at the tip, improving overall efficiency.

1. Name of the product in this design: Three-cylinder plunger pump (3). 2. Application of this design: It is used for high-pressure liquid transportation in agriculture, such as pesticide spraying, irrigation or fire fighting, as well as high-pressure cleaning. It generates stable high pressure through the reciprocating motion of the plunger to achieve long-distance or high-lift operations. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.

The application belongs to the technical field of submersible pumps, and provides a high-lift submersible electric pump, which comprises a motor, a transmission box, a protective cover and a pump body connected in sequence, the output shaft of the motor is connected with the input shaft of a coupler, the output shaft of the coupler is connected with the impeller of the pump body through the protective cover, the coupler is fixed in the transmission box, a gear assembly is further arranged in the transmission box, a cleaning device is connected to the outside of the transmission box, the cleaning device comprises a ring-shaped connecting piece and a cleaner, the cleaner is fixed on the ring-shaped connecting piece and located outside the protective cover, the motor drives the ring-shaped connecting piece to rotate through the gear assembly, when the motor is started, the pump body connected through the coupler is delayed to enter the working state of the cleaning device, so that the ring-shaped connecting piece drives the cleaner to form a cleaning area outside the protective cover in advance.

The application discloses a vertical diaphragm pump with large flow and high lift, belongs to the technical field of diaphragm pumps, and solves the problem of poor suction and insufficient suction stroke of the diaphragm pump when sucking liquid because the diaphragms on both sides do not work together. The diaphragm pump comprises a cylinder body with an air inlet and an air outlet, a diaphragm chamber I in communication with both ends of the cylinder body, a diaphragm I fixed in the diaphragm chamber I and capable of deforming, a connecting rod movably connected in the cylinder body, one end of the connecting rod being fixedly connected with the diaphragm I to control the deformation of the diaphragm I, a diaphragm chamber II symmetrically arranged and in communication with the diaphragm chamber I on the same side, a diaphragm II fixed in the diaphragm chamber II and capable of deforming, and an air pipe, and the side of the diaphragm chamber II away from the diaphragm chamber I is closed. The diaphragm pump can enhance the suction of liquid by the diaphragm I and the diaphragm II working together, and then can continuously apply suction to the liquid to reach a higher height under the condition of enhanced suction, so that the suction stroke is enhanced.

The application discloses a kind of wing-body fusion layout unmanned aerial vehicle's aerodynamic shape, it is related to low-altitude economic unmanned aerial vehicle high lift-drag ratio flight technical field, including wing-body part, the rear end of the upper surface of wing-body part is equipped with V-tail, engine is installed between the opposite surface of V-tail, the wing-body part with the V-tail is equipped with control surface part on;The lower surface of wing-body part is equipped with landing gear;The wing-body part includes inner wing and outer wing, the inner wing with the outer wing is symmetrically arranged, the edge of outer wing is equipped with wing tip;The leading edge sweep angle of wing-body part is 20 °, the trailing edge sweep angle of wing-body part is 17 °.The application discloses a kind of wing-body fusion layout unmanned aerial vehicle's aerodynamic shape, has better aerodynamic performance, stronger carrying capacity and lower noise;Appearance is simple, and cruise efficiency is high, suitable for engineering practical application.

1. Name of the product in this design: Three-cylinder plunger pump (2). 2. Application of this design: It is used for high-pressure liquid transportation in agriculture, such as pesticide spraying, irrigation or fire fighting, as well as high-pressure cleaning. It generates stable high pressure through the reciprocating motion of the plunger to achieve long-distance or high-lift operations. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.

This invention provides a screw pump, an oil production system, an oil production method, a storage medium, and electronic equipment, belonging to the field of petroleum extraction technology. The screw pump includes a stator and a rotor. The rotor has an arc-shaped structure that is large at both ends and small in the middle, and is symmetrical. The stator also has an arc-shaped structure that is small at both ends and large in the middle, and is symmetrical. The rotor is located inside the stator. The inner surface of the stator and the outer surface of the rotor have the same curvature. Both the inner surface of the stator and the outer surface of the rotor are threaded surfaces. The threaded surfaces of the stator and rotor cooperate with each other to allow the rotor to rotate within the stator, forming a pump cavity between the stator and the rotor. The pump has low overall leakage, high efficiency, and high head. The symmetrical pump cavity formed between the stator and the rotor results in almost equal flow rates in each cavity, leading to uniform filling of the symmetrical pump cavities. This results in symmetrical force on the pump body, high overall wear resistance, and a long service life.

The application relates to a design method of a gliding-cruising integrated aerodynamic profile based on a minimum wave resistance type line, and belongs to the design field of vehicles, aircraft or ships. In view of problems such as performance mismatch in a wide speed range, complex structure and insufficient matching ability of internal and external flows of a traditional configuration, a design method of a fixed-geometry two-stage aerodynamic profile based on a wave-riding theory is constructed, a configuration of integrated fusion of a back gliding stage and an abdomen cruising stage wave-riding profile is adopted, flight state switching is realized through attitude overturning, and the aircraft has excellent aerodynamic characteristics in gliding and cruising states. In the cruising stage, based on the flow direction double wave-riding principle, the outer wave-riding wall surface and the inner wave-riding inlet are generated through streamline tracing in the integrated axial symmetric reference flow field of internal and external flows, and the forebody shock wave and the inlet entrance are effectively matched; in the gliding stage, the wave-riding profile is designed based on the minimum wave resistance theory, and a higher lift-drag ratio is obtained. The two-stage profiles share a three-dimensional leading edge, and are seamlessly fused in the unified configuration. The aircraft structure design is simplified, and the flight reliability is improved.

This invention belongs to the field of submersible pump technology, and in particular to a submersible pump equipped with an energy-saving flow-increasing device. During use, the electric motor drives the drive shaft and connecting shaft to rotate, which in turn causes the internal pump impeller to rotate. Under the action of centrifugal force, mechanical energy is converted into liquid energy, causing water to be ejected at high speed from the center of the pump impeller. Because the inner diameter of the pump impeller decreases successively, it has a distance-increasing and impact-accelerating effect on the internal water, thereby increasing the head. The internal inlet further aggregates the discharged water during delivery, further enhancing the water flow rate and completing the flow increase. A self-starting stepper motor at the bottom drives the transmission shaft to rotate. Because the eccentric gear on the transmission shaft meshes with the eccentric gear on the outer side of the guide shaft, under gear transmission, the guide shaft can drive the outer baffle to rotate along the outlet of the discharge pipe, thereby throttling and controlling the internal water output.

1. Name of the product in this design: Forest fire-fighting centrifugal pump. 2. Purpose of this design: To rapidly draw water from open water sources and transport it over long distances and at high lifts to extinguish forest fires. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.

This invention belongs to the field of vertical material transportation technology, and particularly relates to a high-lift vertical conveyor with anti-deviation features. This invention provides a high-lift vertical conveyor with anti-deviation features, which achieves the following by setting up a corrugated sidewall belt, a limiting constraint component, and a power transmission component on the conveyor frame: 1. An elastic transition layer composed of multiple layers of elastic sheets is set between the corrugated sidewall and the base belt, forming a smooth transition to resolve interface stress concentration and prevent tearing of the sidewall caused by high tension; 2. In the vertical section, the long roller and the short roller pressing against the empty side are relatively close to form a limiting gap, which, together with the guide roller, constructs a three-dimensional forced limiting to eliminate multi-directional instability and deviation of the suspended belt; 3. In the horizontal return section, the short roller lifts the inverted empty side from below, so that the downward-hanging sidewall is suspended and not subjected to force, eliminating the deflection due to its own weight while avoiding crushing the sidewall.

1. Name of the product in this design: Three-cylinder plunger pump (1). 2. Application of this design: It is used for high-pressure liquid transportation in agriculture, such as pesticide spraying, irrigation or fire fighting, as well as high-pressure cleaning. It generates stable high pressure through the reciprocating motion of the plunger, enabling long-distance or high-lift operations. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.

This invention provides a parametric layout for a high lift-to-drag ratio air-breathing aircraft with internal and external double-wavelength flow, including an external wavelength forebody, an internal wavelength flow channel, a wavelength-like aftbody, a leeward fuselage, a rear wing aerodynamic rudder, and a rudder. The internal wavelength flow channel includes an internally contracting inlet, an S-curve, an isolator, a combustion chamber, and a nozzle. The cross-sectional curves of each component include symmetry plane control lines, wing leading edge control lines, forebody characteristic cross-section control lines, aftbody characteristic cross-section control lines, and control lines for each characteristic cross-section of the internal flow channel. Each characteristic cross-section control line is tangent at its connection point, and the control line intersecting the symmetry plane must be tangent to the horizontal line to ensure a smooth transition between surfaces. The shape of each cross-section control line can be modified by adjusting parameters. This invention improves upon the performance degradation, insufficient adjustability, and low iteration efficiency problems in the engineering of internal and external double-wavelength air-breathing aircraft, achieving further improvement in the performance and optimization efficiency of the integrated internal and external flow aircraft.

1. Name of the product in this design: Forced Dual Cooling Forest Fire Pump (High Lift V300U). 2. Intended use of this design: for firefighting in forests and grasslands and for transporting other cleaning liquids. 3. The key design elements of this product are the combination of shape, pattern, and color. 4. The image or photograph that best illustrates the design's key points: 3D rendering 2. 5. The design for which protection is sought includes color.

The utility model discloses a heavy load latent AGV of self -adaptation ground relates to heavy load AGV technical field, including AGV chassis, AGV chassis side fixedly be provided with the lamp area, through swing bridge type suspension release whole bridge rotation degree of freedom, four wheel layout is equivalent to 'three point one face' structure, ensure that all wheel train reliable ground connection on uneven ground, avoid wheel train from the root source to hang in the air, simplify suspension structure and improve complex ground traffic stability significantly, simultaneously, adopt the linkage of many filiform rods and lift the platform, by precision transmission mechanism drive high accuracy ball screw lifter of servo motor, combine closed loop control, realized very high lifting positioning accuracy and repeat stability, satisfy the demand of precision operation, response speed is fast, no hydraulic lag, combine diagonal laser obstacle avoidance radar, four around anticollision strip, emergency stop button, lamp area and multilevel safety protection of voice loudspeaker, realized 360 degree dead angleless safety guarantee, ensure the operation reliability under the emergency situation.

A leading edge high lift assembly (11) having a slat (13) and a connection assembly (15) movably connecting the slat (13) to a main wing (9). The connection assembly (15) includes an elongate slat track (27) between a first end (31) and a second end (33). The slat track (27) is mounted to the main wing (9) by a roller bearing (37) and mounted to the slat (13) via a link arrangement (39) having a first link element (41) mounted to the slat (13) and to the slat track (27). A recess (59) in the slat track opens to a side of the slat track (27). The first link element (41) extends through the recess (59).

A support assembly for a high lift body configured to be mounted to a spar of a wing of an aircraft includes a track beam configured for supporting the high lift body at the spar movably between a stowed position and a deployed position along a motion path, the track beam having a structural profile portion adapted for transferring operational loads of the high lift body into the spar, and a track profile portion supported at the structural profile portion and adapted for guiding a carriage assembly for carrying the high lift body movably along the motion path and taking up the operational loads. The structural profile portion and / or the track profile portion include a complementing profile portion. The structural profile portion, the track profile portion, and / or the complementing profile portion provide a main load path and a redundant load path configured to transfer and / or take up the operational loads.

High lift systems for aircraft and associated methods are provided. A high lift system includes a movable high lift device, an inboard track for guiding an inboard portion of the high lift device, and an outboard track for guiding an outboard portion of the high lift device. An actuator drives the high lift device between a retracted position and a deployed position. The actuator is disposed inboard of the inboard track. An inboard bell crank connects the actuator to the inboard portion of the high lift device. An outboard bell crank connects the actuator to the outboard portion of the high lift device. A connecting link connects the inboard bell crank to the outboard bell crank such that the outboard bell crank driveably connects the actuator to the outboard portion of the high lift device via the connecting link and the inboard bell crank.

The application discloses a thin airfoil family and a wind power blade. The thin airfoil family is based on a geometric shape topology coordination principle, and through deep space coupling of front, middle and rear section characteristics of the full chord profile of the airfoil, flow field reconstruction and energy management are realized, so that the airfoil family with target aerodynamic characteristics is obtained. In the front section of the airfoil, a minimum leading edge radius is adopted to actively induce high-energy turbulent flow, to advance the transition, and to significantly reduce the leading edge roughness sensitivity. In the middle section of the airfoil, a distance of an inverse pressure gradient bias zone of more than 0.58c is forced to be maintained, a long-distance pressure recovery buffer zone is constructed, and the inverse pressure gradient is greatly flattened, so that the boundary layer separation is delayed and the critical stall attack angle is improved. In the rear section of the airfoil, a reverse kick point is arranged to utilize a large trailing edge reverse angle to strengthen the downwash effect, to realize circulation overload, and to ensure that the airfoil still has high design lift and high lift-drag ratio characteristics under high relative thickness.

This invention discloses a flapping-wing aircraft, relating to the field of aircraft technology. It includes at least two wing bodies and a transmission mechanism that drives their flapping. The wing bodies can dynamically adjust drag. The wing bodies are either mesh-structured or unidirectional valve-structured: the former includes a lightweight mesh structure and elastic components, which fold to reduce drag during ascent and unfold to increase drag during descent; the latter includes a lightweight frame and unidirectional valve components, which adhere to the wall to reduce drag during ascent and close the grid to increase drag during descent. The transmission mechanism is designed based on the lever principle, including a connecting rod, a drive rod, and an operating lever. The drive rod forms a seesaw structure with the base via a support rod. An elastic thin plate is connected to the rear of the wing to assist propulsion, and a buoyancy assist device can also be added. This aircraft has a high lift-to-drag ratio, low propulsion energy consumption, stable flight, and strong adaptability.

The application discloses a compact high-lift electric pump device, which comprises a heat dissipation mechanism, a pressure increasing mechanism and a damping mechanism. The pressure increasing mechanism comprises a liquid outlet, a pump shell, a second pressure increasing flow pipe, a first communication ring, a pressure increasing piston, a first pressure increasing flow pipe, a second communication ring, a liquid outlet check valve, a motor, a linkage shaft, a rotating disc, an inclined disc, a liquid pumping rod, a liquid outlet block, a return spring, a blocking ball, a blocking spring, a connecting plate and an eccentric wheel. The liquid outlet is fixedly connected with the connecting plate, and the pump shell is rotationally and sealingly connected with the linkage shaft. The pressure increasing mechanism is arranged, the device and the liquid outlet check valve are changed, the pressure bearing position in the device is changed, the pump originally bears pressure and the liquid outlet bears pressure, and thus the problem that the service life of the parts in the pump is reduced due to high pressure required by high lift is avoided.