16856results about "Pump components" patented technology

A wind energy plant with a nacelle, a rotor, which features at least one rotor blade adjustable in its blade pitch angle, a central control device for controlling the wind energy plant and a control unit disposed in the rotor for controlling the blade pitch angle of the at least one rotor blade, wherein the central control device and the control unit in the rotor can exchange data with each other via a data link, which comprises at least one first sending and receiving device at the nacelle side and at least one second sending and receiving device at the rotor side, wherein a wireless network connection with a safety-oriented communication protocol is provided between the at least one first sending and receiving device and the at least one second sending and receiving device, and that one monitoring- and communication device at a time is associated to the first and / or the second sending and receiving device, which can monitor the function of the sending and receiving device and initiate a predetermined action in the case of an error.

A handheld fan includes a housing, a fan module, a power module, and a retractable cable module. The fan module is disposed in the housing, the power module is disposed in the housing and configured to supply power to the fan module, the retractable cable module is disposed in the housing and includes a cable retractable relative to the housing to be withdrawn into the housing or extended out of the housing, and the cable is configured to connect to an external electronic device, and supply power to the external electronic device through the power module. When a user carries the handheld fan and has a charging need, the cable is capable of being pulled out of the housing of the handheld fan, and connected to the external electronic device including a mobile phone. The power module is configured to supply power to the external electronic device.

An air guide frame, a fan head, and a handheld concentrating fan are provided. The air guide frame is configured to be arranged at an air outlet of a fan head and guide air from a fan. the air guide frame includes an inner frame and a separator ring arranged at a periphery of the inner frame; a first air channel is formed in a periphery of the separator ring; a second air channel is formed between the inner frame and the separator ring; and a wind speed of wind exported from the second air channel is greater than a wind speed of wind exported from the first air channel. Compared with the existing technology, the air guide frame having the first air channel and the second air channel can implement the wind speeds of winds blown out through the two air channels being different.

The present invention discloses a handheld spray fan, the handheld spray fan includes a housing assembly, fan assembly, and spray device. The housing assembly features a handheld part, an air duct at one end, and an air outlet cover at the end of the air duct with a through-hole and multiple air outlet holes. The fan assembly is installed within the air duct, and the spray device comprises a water tank, water pipe, mounting seat, fiber water guide, and atomizer. The water tank is positioned within the housing assembly, the water pipe connects the water tank and the mounting seat, the mounting seat is located at the through-hole, and the atomizer is installed on the mounting seat and exposed through the through-hole. The fiber water guide extends from the water tank to the atomizer, ensuring continuous water supply for stable misting.

A misting fan includes a fan assembly and a misting assembly. The fan assembly includes a fan housing and a fan blade assembly. The fan housing includes an air inlet guard and an air outlet guard. The air outlet guard includes a mist outlet portion and air outlet vanes, the mist outlet portion includes a mist outlet hole and air outlet holes. The misting assembly includes an atomizing member and a water tank. The water tank includes a main tank body, at least one water delivery pipeline, and an atomizing portion. Liquid in the main tank body is provided to the atomizing member through the at least one water delivery pipeline and the atomizing portion, thereby enabling the atomizing member to spray mist spray formed by atomizing the liquid from the mist outlet hole, and outlet airflow is arranged around the mist spray.

A waist hanging fan is provided, which includes an outer shell and a blowing component. The blowing component includes an inner wind duct shell, two ends of the inner wind duct shell are provided with an air inlet end and an air outlet end; an air blower provided in the inner wind duct shell; and a wind guide cover. The wind guide cover is circular. A lower end of the wind guide cover is provided in the outer shell and is sleeved on an outer side of the inner wind duct shell. An outer wall of the lower end of the wind guide cover is provided with a clamping protrusion, a wall of the outer shell or inner wind duct shell is provided with at least two clamping grooves. The present disclosure has the advantage that it is easier for wind to blow onto a user's body.

The technology described herein is directed towards one or more modular metasurfaces arranged with unit cells for sound absorption, in which the unit cells are based on Helmholtz resonators that are deployed proximate to a server, without substantially obstructing airflow from the server fan(s). Each sound absorbing unit-cells is designed and constructed based on a specific resonance frequency, and includes a neck portion and air chamber dimensioned to resonate at the desired resonance frequency and thereby inverse phase cancel corresponding narrowband frequencies of incoming sound waves. The metasurfaces can be arranged in a modular frame structure of surrounding unit cells, positioned behind the server's fan(s), with an opening in the frame structure to facilitate airflow therethrough, without obstructing or substantially obstructing the airflow to the surrounding environment.

A fan light is provided, including: a central assembly, which includes a housing and a control mechanism mounted inside the housing, where the housing can be connected to an external mounting structure; a fan blade assembly, which is detachably in pivotal connection to the control mechanism; and a lamp frame assembly, which includes a connector connected to the housing, and a first lamp frame and a second lamp frame that are connected to the connector. The first lamp frame and the second lamp frame are configured to have a first state of being rotatably unfolded relative to the connector and surrounding the fan blade assembly, and a second state of being rotatably folded relative to the connector. The fan light can conveniently switch states and is convenient for storage and transportation, and damage is avoided. Meanwhile, difficulty of operations cannot be increased.

A spray fan includes a box, a mounting base and a fan body. The fan body is arranged on the mounting base so that the fan body has a first state arranged on the box and a second state contained in the box. The disassembly and assembly design of the spray fan enhances the convenience of storage and portability. The configuration of the spray assembly effectively prevents an excessive amount of liquid in the water storage tank, thereby avoiding issues of excessive internal pressure. Additionally, it prevents liquid from overflowing from the ultrasonic atomizer of the spray assembly, ensuring optimal atomization performance.

The technology described herein is directed towards a metasurface arranged with unit cells for narrowband sound absorption, in which the unit cells are based on Helmholtz resonators that can have their resonant frequencies selected via interchangeable portions. A sound absorbing unit cell is designed and constructed in two parts based on a desired resonance frequency, such as a neck portion and air chamber portion. The portions are dimensioned such that when coupled together, Helmholtz resonators are formed that resonate at a desired resonance frequency and thereby inverse phase cancel corresponding narrowband frequencies of incoming sound waves. A portion with different dimensions can be interchanged to adjust the resonant frequencies to cancel acoustic waves of different frequencies corresponding to noise, which can change over time. The unit cells can be distributed as part of a metasurface, which can be positioned proximate to a noise source to phase cancel the noise.

A fan assembly and an electronic device are provided in the present disclosure. The electronic device comprises a housing and the fan assembly mounted in the housing. The housing is provided with a receiving chamber, a first opening, and a second opening. The fan assembly includes a plurality of brackets, a fan unit, and a plurality of locking mechanisms. The fan unit includes a mounting plate and a plurality of fan sections. The fan unit may be fitted in the receiving chamber in a forward state or a backward state, to achieve a forward airflow or a backward airflow. Each of the plurality of fan sections may be locked to each bracket by each locking mechanism and be taken out from the receiving chamber with a corresponding bracket.

A gas passage for use in a PAP device configured to provide pressurized gas to a patient, including a passage casing with an air intake and an air outlet. The casing is configured to encompass and accommodate internal components and forms a chamber inside, where the chamber is configured to facilitate the flow and accumulation of gas. A blower is provided within the chamber to pressurize and output the gas. The internal components of the noise-reducing gas passage include noise reduction components configured to attenuate the noise of the gas entering the noise-reducing gas passage. These noise reduction components include a ventilation component, an intake pipe, and a flexible component at the air intake. Additionally, this disclosure specifies scientific and precise data requirements for the internal structure and positioning of the blower and noise-reducing components within the noise-reducing gas passage to achieve effective and excellent noise reduction.

A handheld fan is provided, including a housing body. The housing body includes a hand grip portion, an air duct portion is disposed in the housing body, a motor is disposed in the air duct portion, a motor circuit board is disposed on the motor, and the motor circuit board is electrically connected to the motor. A control circuit board and a battery are further disposed in the housing body, the control circuit board is electrically connected to the motor circuit board, and the control circuit board is electrically connected to the battery. According to the above structural configuration of the handheld fan, the motor circuit board and control circuit board are separately disposed in the housing body, so that heat generated by the motor circuit board and control circuit board is distributed across distinct components. Additionally, the motor circuit board is independently disposed on the motor.

An electric motor having a stator and a rotor in which the electric motor is an axial flux motor. The stator has a multiplicity of cores which, along a circumferential direction, are disposed beside on another on a common first diameter and are in each case surrounded by one coil. The rotor has a multiplicity of magnets which, along the circumferential direction, are disposed beside one another on a common second diameter on a support. Each magnet in the circumferential direction extends across a first angular range and the magnets are disposed so as to be mutually spaced apart by a second angular range formed by the support, which support is also heatable by the stator by induction. The second angular range is at least 30% of the first angular range.

The utility model relates to the technical field of fans, in particular to a cooling fan with a side suction type flow channel, which comprises a base, a side suction type flow channel, a side suction type flow channel and a side suction type flow channel, the rotor is rotationally arranged in the accommodating cavity and is provided with an axis; the stator is fixedly arranged in the accommodating cavity and is coaxial with the rotor; the stator is provided with a shaft tube part corresponding to the axis, a first bearing is arranged in the shaft tube part, and the axis is sleeved with the first bearing; the base is provided with at least one side suction type flow channel, and the side suction type flow channel forms an air inlet in the surface, facing the air inlet side, of the base and forms an air outlet in the cavity wall of the containing cavity. An included angle is formed between the extending direction of the axis of the air inlet and the extending direction of the axis of the air outlet. Through the arrangement of the side suction type flow channel, the air inflow in unit time is increased, the performance and efficiency of the fan are improved, more air flows more effectively take away heat, and the heat dissipation effect is improved.

An apparatus and methods for a rotor pack are provided for a positive displacement supercharger that produces greater engine power output without loss of best seal between the rotors or between the rotors and an interior surface of an enclosing case. The rotors include relief zones and cupped portions at an intake airflow side of each lobe comprising the rotors. The relief zones allow additional airflow to enter the rotor pack while the cupped portions scoop additional airflow into the rotor pack during operation of the supercharger. Tapered radius portions of an enclosing case allow additional airflow to be dragged into the rotor pack. Pressure relief portions on a rotor bearing plate and angled portions on each lobe extend compression events during operation of the rotor pack. The angled portions reduce a margin of the lobes to sharpened edges without affecting the diameter of the margin.

The invention relates to the technical field of agricultural machinery, and discloses an adjustable soil covering device for ginger planting, comprising: a mobile vehicle, the front side of the bottom of which is provided with a front wheel matched with the curved surface of a ridge, and the rear side of which is provided with a rear wheel with a ditch edge profiling structure; the central mixing bin is integrally formed in the middle of the mobile vehicle chassis, and a rotatable scattering disc is coaxially arranged in the central mixing bin. The mixing process of soil and fertilizer is innovatively integrated in the central mixing bin, and the fertilizer is sucked from a storage box through a Venturi negative pressure generator in a pneumatic conveying mode; the high-pressure fan provides airflow power to feed the materials into the mixing bin, non-blocking automatic fertilizer supply is achieved, the fertilizer and soil intersect in the bin, the materials are guided to spirally fall down by means of the tapered spiral flow guide column, the mixing path is prolonged, meanwhile, the ultrasonic vibration plate continuously vibrates to form lumps, it is guaranteed that the two materials are highly and evenly mixed, and the mixing efficiency is improved. And a mixed substrate with stable quality is provided for subsequent precise soil covering.

The utility model relates to the technical field of shield pumps, in particular to a totally-enclosed shield pump which comprises a shield pump body and a shield motor, one side of the shield pump body is connected with the shield motor through a hoop, and the shield motor comprises a front bearing seat assembly, a rear bearing seat assembly, a stator assembly, a rotor assembly and a cable head. The rotor assembly is sleeved with the stator assembly, the front bearing seat assembly and the rear bearing seat assembly are connected to the two sides of the stator assembly respectively, the front bearing seat assembly comprises a front bearing seat and a front bearing, and the rear bearing seat assembly comprises a rear bearing seat, a rear bearing and a plug. The motor can be cooled, the loss of the bearing can be reduced, the motor is prevented from being damaged due to overheating, the motor and the pump body are simple in connection, the assembly process is simple, maintenance is convenient, and the motor can be quickly opened to be repaired when the shield pump is damaged.

The invention discloses a quantitative recognition device for the number and size of bubbles at a rotating impeller of a multiphase pump. The quantitative recognition device comprises a two-phase flow experiment system, the multiphase pump, a high-speed camera, a light source and the like. The preprocessing and data analysis system and the deep learning system are arranged in the computer; the two-phase flow experiment system and the image acquisition system are electrically connected with the computer through lines. The invention further discloses a quantitative recognition method for the number and size of the bubbles at the rotating impeller of the multiphase pump. According to the method, the problems of low blistering recognition precision, low efficiency and large error caused by the existing manual measurement method are solved, and a reference method is provided for exploring the influence of gas distribution at the impeller in the multiphase pump on pump operation and optimizing design of the multiphase pump.

The utility model relates to the technical field of pipeline pumps, and discloses a vertical pipeline pump which comprises a pump body arranged outside a shaft body, a pump cover and a sealing gland, the top of the pump body is connected with the pump cover, the top of the pump cover is connected with the sealing gland, a sealing cavity is formed between the pump cover and the sealing gland, a pump body flushing hole is formed in the pump body, and a pump cover flushing hole is formed in the pump cover. A first sealing flushing hole and a second sealing flushing hole are symmetrically formed in the side wall of the sealing gland, the pump body flushing hole, the pump cover flushing hole and the sealing cavity are sequentially communicated, the first sealing flushing hole is externally communicated with a liquid storage tank water outlet and communicated with the sealing cavity, and the sealing cavity is communicated with the second sealing flushing hole. And the second sealing flushing hole is externally communicated with a liquid storage tank water inlet. The pump body flushing hole is formed in the pump body, the pump cover flushing hole is formed in the pump cover, and sealing flushing liquid enters the sealing cavity along the pump body flushing hole and the pump cover flushing hole, so that the sealing shaft sleeve is flushed and cooled, and the service life of the sealing shaft sleeve is prolonged.

An apparatus for an aircraft powerplant includes an impeller rotor and a seal runner. The impeller rotor includes a plurality of fluid circuits. Each of the fluid circuits includes a first outlet passage, a second outlet passage and an inlet passage fluidly coupled to the first outlet passage and the second outlet passage in parallel. The seal runner includes a bore, an inner guide surface and an outer land surface. The seal runner extends circumferentially about the axis and radially between the inner guide surface and the outer land surface. The bore is fluidly coupled to the first outlet passage of each fluid circuit. The inner guide surface forms a radial outer peripheral boundary of the bore. The inner guide surface radially diverges away from the axis as the inner guide surface extends axially away from the impeller rotor and to a distal end of the seal runner.

The utility model provides an air supply device and an air conditioner, and the air supply device comprises fan blades which are rotatably arranged; the volute tongue structure comprises a volute tongue body and a first air guide plate connected with the volute tongue body, the first air guide plate is located at the end, close to the fan blades, of the volute tongue body, and the first air guide plate is movably connected with the volute tongue body so as to adjust the distance between the first air guide plate and the fan blades; the detection device is used for detecting the air supply speed at the air outlet of the air supply device; and the control device is in signal connection with the detection device, and the control device controls the first air guide plate to move according to the air supply speed so as to change the distance between the first air guide plate and the fan blades. According to the air supply device, the variable baffle is provided, the distance between the volute tongue and the fan blades can be changed according to different air speeds, and the technical problem that in an existing air conditioner in the prior art, due to the fact that the gap between the volute tongue and the fan blades is fixed, the air outlet efficiency of the air conditioner is low is solved.

The present disclosure relates to the technical field of fan lamps, in particular to a split-type fan lamp structure. The split-type fan lamp structure comprises an installation housing; a fan blade structure is arranged below the installation housing, and an installation space is formed inside the installation housing for installing and arranging a driving mechanism; a driving end of the driving mechanism extends downwards through a clearance hole at the bottom of the installation housing and is connected to the fan blade structure; a plurality of lamp body modules are arranged outside the outer contour of the fan blade structure; the lamp body modules as a whole are designed to be elongated and curved with an arc-shaped structure; any two adjacent lamp body modules are connected by a connector, and a plurality of lamp body modules are assembled into an annular structure.

An exhaust turbocharger has a housing, in which a shaft is mounted by bearings, which carries a turbine wheel, on the one hand, and a compressor wheel, on the other hand. An electric machine has a rotor and a stator. The rotor is secured on the shaft for conjoint rotation therewith and the stator surrounds the rotor radially on the outside. A sleeve, which supports the rotor radially and axially, is arranged between the stator and the rotor. The sleeve has at least one fluid duct, by way of which a cooling fluid can be guided toward the bearings of the shaft.

The invention discloses an energy-saving and efficiency-improving submersible pump for an integrated pump gate. The energy-saving and efficiency-improving submersible pump comprises a gate body and a submersible pump body, the pump body part comprises an impeller, a rotating shaft and a pump shell, the inducer is arranged at the upstream end of the impeller, and the impeller comprises impeller blades and a hub; the device is characterized in that a step part is arranged on the peripheral surface of the lower end part of the hub, the inducer comprises inducing blades and an adjusting cylinder, the upper end of the adjusting cylinder is connected with the step part, the lower end of the adjusting cylinder is connected with an adjusting cap, a drainage cavity is formed among the adjusting cap, the adjusting cylinder and the lower end part of the hub, a first through hole is formed in the adjusting cap, and a second through hole is formed in the adjusting cylinder; third through holes are formed in the induction blades, and the third through holes penetrate to the blade tops of the induction blades. The suction performance of the submersible pump can be improved, the influence of boundary layers between the induction blades and impeller blades and secondary flow on liquid flowing is reduced, and therefore the hydraulic performance and efficiency of the submersible pump can be improved, and the good effects of energy saving and efficiency improving are achieved.

The anti-blocking submersible pump comprises a pump body, the pump body comprises a driving part, a pump cavity part and a liquid inlet part, the pump cavity part is located between the driving part and the liquid inlet part, the pump cavity part is provided with an impeller, the driving part is provided with a driving rod, the liquid inlet part is provided with a liquid inlet cylinder and a cutting cylinder, the liquid inlet cylinder is arranged on the outer wall of the cutting cylinder in a sleeving mode, and the cutting cylinder is provided with an impeller. The cutting cylinder abuts against the inner wall of the liquid inlet cylinder, the cutting cylinder is connected with the driving rod, the liquid inlet cylinder is provided with a liquid inlet hole, the cutting cylinder is provided with a cutting hole, and the cutting hole is used for cutting aquatic plants. The cutting barrel is arranged, when strip-shaped foreign matter such as aquatic plants penetrates through the liquid inlet hole and the cutting hole to enter the liquid inlet part, the hole wall of the cutting hole of the rotating cutting barrel and the hole wall of the liquid inlet hole have the cutting effect similar to shearing through scissors, and therefore the situation that the aquatic plants enter and wind the impeller is reduced, and the situation that the liquid inlet barrel is blocked is reduced; the working stability of the pump body is improved.

A hollow-structured cooling fan includes a fan frame, a fan blade, a display module, and a drive module. A mounting tube is disposed in a central portion of the fan frame, a first bearing is disposed within the mounting tube; a sleeve shaft is disposed in a central portion of the fan blade, and inserted into the mounting tube, and a second bearing is disposed within the sleeve shaft; a fixed shaft is disposed in a central portion of the display module, and inserted into the sleeve shaft, and an outer wall of the fixed shaft is connected to an inner ring of the second bearing; an end portion of an insertion end of the fixed shaft extends through a bottom of the mounting tube to form a limiting connection; and the drive module is disposed on an outer side of the mounting tube and cooperates with the fan blade.

The invention relates to the technical field of auxiliary power, in particular to an air supply device of an auxiliary power system. The device comprises an air inlet duct shell, an air inlet air pocket, an air inlet duct outer ring, an air inlet volute, a labyrinth ring, a locking unit and a rotor. The axial end face of the air inlet air pocket is coaxially connected with the air inlet channel shell in an abutting mode. The air inlet channel outer ring comprises an outer sealing cylinder and an outer extending ring which are coaxially and fixedly connected, and the axial end face of the outer extending ring is coaxially connected with the air inlet air pocket in an abutting mode. The air inlet volute comprises a volute positioning cylinder and a spiral air channel shell which are fixedly connected, and the end face of the air inlet volute coaxially abuts against the outer extending ring. The labyrinth ring is clamped between the air inlet channel outer ring and the air inlet volute, the inner peripheral wall and the outer peripheral wall are attached to the first sealing face and the second sealing face respectively, the radial linear expansion coefficient of the labyrinth ring is larger than that of the first sealing face and that of the second sealing face, the labyrinth ring comprises a ring body and a plurality of pressure reduction gear rings axially arranged at intervals, and a stepped pressure relief cavity is formed between every two adjacent pressure reduction gear rings. In this way, the problem that gas leakage is prone to occurring at the connecting position of the air inlet end shell of the auxiliary power system is solved.

The invention provides a flow guide ring structure, a fan assembly, an air conditioner and a noise reduction control method thereof.The flow guide ring structure comprises a flow guide ring, a noise reduction unit is arranged on the periphery of the flow guide ring, the noise reduction unit comprises a first sound absorption assembly, and the first sound absorption assembly comprises a first shell cover, a first partition plate and a first movable plate; the first shell cover covers the peripheral face of the flow guide ring to form a first cavity, the first cavity is divided by the first partition plate into a first sound absorption cavity and a second sound absorption cavity, the first sound absorption cavity and the second sound absorption cavity are different in size, and a plurality of first communicating holes are formed in a first perforated plate section of the first partition plate in a penetrating mode. The first movable plate is movably arranged on the first perforated plate section so as to adjust the number of the shielded first communicating holes. According to the flow guide ring structure, self-adaptive adjustment and noise reduction can be carried out according to the change of the operating parameters, so that noise of different frequencies generated under different operating parameters is effectively reduced, the frequency range of effective noise reduction is widened, the noise reduction effect is improved, and the mute experience comfort of a user is improved.

The fan blade structure comprises a base and a plurality of blades, the blades are evenly distributed on the side face of the base, each blade is provided with an inner side section, a connecting section and an outer side section, the inner side sections and the outer side sections have bending radians, one end of each inner side section is connected with the base, and the other end of each inner side section is connected with one end of the corresponding connecting section; the other end of the connecting section is connected with one end of the outer side section, the other end of the outer side section serves as the outer side face of the blade, the connecting section is bent, the bending direction of the connecting section is opposite to that of the inner side section, and the outer side section and the inner side section are distributed in a staggered mode with the connecting section as the center. According to the fan, the blades are arranged to be two parts which are distributed in a staggered mode, an additional multi-layer fan blade structure is not needed, the manufacturing cost is saved, and a larger blowing wind face can be formed.