3150results about "Axial flow pumps" patented technology

A portable fan includes: an airflow portion and a display screen. The airflow portion includes an air outlet, the air outlet is disposed surrounding a periphery of the display screen. The display screen has an outer surface at least partially curved; and / or the display screen is configured to display at least one of: a remaining battery power level, a current air speed, a battery power level during charging, and an operating state.

Apparatus and methods are described including placing, into a subject's body, a blood-pump tube, with an impeller disposed within the blood-pump tube. At least one blood-pressure-measurement element extends to at least an outer surface of the blood-pump tube, such that the distal end of the blood-pressure-measurement element is in direct fluid communication with a bloodstream of the subject outside the blood-pump tube at a location that is proximal to blood-inlet opening(s) defined by the blood-pump tube. Blood is pumped through the blood-pump tube, using the impeller. Pressure of the bloodstream of the subject outside the blood-pump tube is measured by measuring blood pressure at the distal end of the left-ventricular blood-pressure-measurement element. Other applications are also described.

A hand-held refrigeration fan is provided, including a fan head and a hand-held portion. The fan head includes a fan housing, an air duct is formed in the fan housing, and the fan housing is provided with a connecting through hole penetrating through inner and outer sides of the air duct. A conductive member is arranged on an outer surface of the hand-held portion, a refrigeration apparatus is arranged in the hand-held portion, a refrigeration end of the refrigeration apparatus is connected to the conductive member in a heat conduction manner, and a heat dissipation end of the refrigeration apparatus communicates with the air duct after penetrating through the connecting through hole. A conductive sheet is arranged on an outer surface of a hand-held portion, and a refrigeration effect is achieved by the conductive sheet through the operation of a refrigeration apparatus.

A high-speed wind-gathering booster fan is provided. The high-speed wind-gathering booster fan includes a housing. An air duct is arranged inside the housing. A motor base is arranged at an axis of the air duct. Part of a circumferential wall surface of the motor base extends radially outward to form guide vanes. The air guide vane includes a parallel part and a torsional wind cutting part. The parallel part is close to the side of an air outlet. The parallel part is in parallel with an axis of an air outlet. The torsional wind cutting part is close to the side of an air inlet. The torsional wind cutting part is deviated from a plane where the parallel part is. An extension surface of the torsional wind cutting part is axially intersected with a wind-deflecting fan blade set.

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.

A portable fan includes a housing body, a fan assembly, a power supply assembly and a first clamping device. The housing body is provided with an accommodating chamber, an air inlet, and an air outlet; the air outlet, at least part of the accommodating chamber and the air inlet are communicated to each other in sequence along a first preset direction. The fan assembly is located within the accommodating chamber and between the air inlet and the air outlet, and is configured to drive an airflow to flow from the air inlet to the air outlet. The power supply assembly is located within the accommodating chamber, the power supply assembly is offset from a projection of the fan assembly along the first preset direction, and the power supply assembly is electrically connected to the fan assembly to supply power to the fan assembly.

Aspects of the present technology relate to compressible and expandable pumps. In one aspect, a pump is provided including a pump housing that is expandable and compressible and a rotor that is expandable and compressible and disposed in the pump housing. The rotor includes at least one rotor blade, a hub, and an axis of rotation. At least a portion of the at least one rotor blade extends from the hub along a first axis that is offset a predetermined distance from a radial axis of the rotor that traverses the axis of rotation. The pump further includes a drive shaft having a proximal end and a distal end, wherein the hub of the rotor is mounted to the distal end of the drive shaft and the drive shaft is rotated to rotate the rotor.

Apparatus and methods are described including a ventricular assist device that includes an impeller configured to be placed inside a left ventricle of a subject. A driving magnet is coupled to a motor and is rotated by the motor. A driven magnet is magnetically coupled to the driving magnet and is rotated by the driving magnet. A drive cable extends from the driven magnet and imparts rotational motion from the driven magnet to the impeller. A set of sensors is configured to detect a magnetic phase difference between the driven magnet and the driving magnet. A computer processor receives the detected magnetic phase difference and determines a physiological parameter of the subject, at least partially in response thereto. Other applications are also described.

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.

A portable fan includes a housing, an air blowing assembly, a power supply assembly and a mounting shell. The housing is provided with a first air inlet, an air outlet and a first air guide chamber. The air blowing assembly is configured to drive an air flow to flow from the first air inlet to the air outlet. The power supply assembly is electrically connected to the air blowing assembly to supply power to the air blowing assembly. The mounting shell is connected to the housing. The mounting shell includes a first mounting part and a second mounting part. The first mounting part is integrally formed with the second mounting part. The first mounting part is configured to mount the air blowing assembly and the second mounting part is configured to mount the power supply assembly.

A multifunctional camping fan telescopic lamp is provided, which includes a base, a rotating base, a fan, and a telescopic lamp. The rotating base is in a “Y” shape and is installed on the base through a rotating mechanism to achieve a horizontal circular rotation of the fan; a cover is provided with a built-in light strip, thereby providing additional lighting or ambient lighting effects. Two sides of the fan are connected to the rotating base through a ratchet module, enabling manual adjustment of up-and-down tilt angle. The telescopic lamp is installed on a back of the fan through a telescopic rod, allowing for free adjustment of the light height and rotation within multiple angle ranges to expand an illumination range. Internally integrated with batteries, PCB boards, and intelligent control systems, it supports functions such as power display and working mode selection, thereby optimizing energy utilization efficiency.

A backpack-type blower disclosed herein may include: a backpack unit including a backpack frame and a shoulder belt attached to the backpack frame; a housing supported by the backpack frame; a prime mover supported by the housing; a blower fan disposed within the housing and configured to be driven by the prime mover; a flexible pipe extending from the housing; a blower pipe extending from a front end of the flexible pipe; a grip unit disposed on the blower pipe; and a suspension band. One end of the suspension band may be connected to the flexible pipe, the blower pipe, or the grip unit, at a position frontward of at least a part of the flexible pipe. Another end of the suspension band may be connected to the backpack unit.

An axial fan assembly includes a first axial fan and a second axial fan arranged side by side. The second axial fan includes an impeller having a shaft, and a frame. The frame includes a surrounding wall and a lateral guiding structure. The surrounding wall forms an axial flow channel for accommodating the impeller, wherein the surrounding wall includes a first outer wall surface facing the first axial fan, and an airflow generated by the impeller flows out of the axial flow channel through an outlet end. The lateral guiding structure is protrudently disposed at the outlet end on an edge surface connected with the first outer wall surface, wherein the lateral guiding structure guides a partial airflow of the airflow at the first edge surface toward a first direction, and the first direction and a normal direction of the first outer wall surface include a first acute angle.

The present disclosure discloses a silent high-speed fan, including a shell; an air duct is formed on the shell; an air inlet and an air outlet are respectively provided at two ends of the air duct; a boosting mechanism is arranged in the air duct; a rectification mechanism is arranged at the air outlet; the rectification mechanism includes a necking hood that covers the air outlet and a rectification blade group composed of a plurality of rectification blades arranged coaxially on an inner side of the necking hood in an annular array. The present disclosure controls the details in an air flow stroke, so that the turbulence is eliminated step by step, and the turbulence is eliminated at the source, to achieve an effect of silently blowing air at a high speed.

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.

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.

An axial flow blower includes a housing assembly, an air inlet assembly assembled with the housing assembly, an air outlet assembly and a motor duct assembly connected between the air inlet assembly and the air outlet assembly. The motor duct assembly includes a duct body, a motor fixed inside the duct body, a guiding cone mounted and matched with a first end of the duct body, and a fan blade mounted and matched with a second end of the duct body. The fan blade is fixed on a motor shaft of the motor, and a diameter of the fan blade is from 64 mm to 100 mm, and a diameter of the motor is from 30 mm to 50 mm, so that a power of the axial flow blower is greater than or equal to 2000 W and a blowing force is greater than or equal to 2500 g.

A portable fan includes a housing body, a fan assembly, a power supply assembly and a first clamping device. The housing body is provided with an accommodating chamber, an air inlet, and an air outlet; the air outlet, at least part of the accommodating chamber and the air inlet are communicated to each other in sequence along a first preset direction. The fan assembly is located within the accommodating chamber and between the air inlet and the air outlet, and is configured to drive an air flow to flow from the air inlet to the air outlet. The power supply assembly is located within the accommodating chamber, the power supply assembly is offset from a projection of the fan assembly along the first preset direction, and the power supply assembly is electrically connected to the fan assembly to supply power to the fan assembly.

A fan includes a main body of fan and a bracket assembly. The main body of fan is connected to the bracket assembly. The main body of fan includes a blower part for blowing air, a rotating bracket and a main unit. The rotating bracket is arranged between the blower part and the main unit and is configured to connect the blower part and the main unit. The main unit is configured to control air blowing of the blower part. The bracket assembly includes at least one bendable and shapeable supporting leg configured to fix the fan to an external object. A rotating bracket is rotatably connected to both a blower part and a main unit, enabling vertical and horizontal rotation of the blower part. This configuration achieves multi-angle adjustment of the blower part, simplifies user control over airflow direction, and thereby significantly improves user experience.

A ceiling fan comprising a stationary inner housing defining a first interior, a stationary outer housing that circumscribes at least a portion of the stationary inner housing and defines a second interior, a motor assembly located within the first interior and having a rotor, and a plurality of blades extending between corresponding roots and tips, with the roots coupled to the rotor and the tips extending toward to the outer housing. The tips are coupled to a tip housing that can at least partially be received within a portion of the outer housing. A flow channel is formed between the stationary inner housing and the stationary outer housing.

A neck hanging fan is provided, which includes a neck wearing bracket including side shells located on left and right sides and a rear shell located on a rear side, the rear shell includes a rear air outlet; a fan located at an air inlet port at an end of the side shells; an air duct provided in the side shells, and an internal aperture of the air duct is gradually decreased. A lower side of the air duct is provided with a plurality of first air outlet ports provided along a length direction of the side shells; the air duct further includes a second air outlet port provided at a tail end, and the second air outlet is aligned with the rear shell. The present disclosure has the advantage of optimizing the air duct path to reduce wind loss and noise, thereby improving the comfort of the wearer.

The invention relates to the technical field of chip radiators, in particular to a chip radiator for a Loongson 3A6000 processor. The heat dissipation device comprises a heat conduction device and a heat dissipation device, the heat conduction device comprises a heat conductor and a fixing body, and the heat conductor comprises a heat conduction structure and a plurality of heat dissipation fins arranged on the heat conduction structure. According to the invention, when the rotating speed of the speed regulation fan is increased and the downward pressure applied to the wall surface of the guide cavity during air flowing is greater than the elastic force of the spring, the middle clamping plate is pressed downwards to drive the regulation and control plate to move downwards along the heat dissipation fins, and the distance from the heat conduction plate to the bottom end of the regulation and control plate is reduced, so that the air circulation sectional area of the air guide channel is reduced; therefore, the flow rate of air flowing out of the air guide channel is further increased, air flow in the case can be promoted, air circulation conditions in the case can be improved, virtuous circular flow of the air in the case can be formed, cooling of the processor is further facilitated, and the problem that the processor is damaged due to overheating or the performance of the processor is reduced is solved.

The invention relates to the technical field of coal mine operation, in particular to a coal mine ventilation device which comprises a machine shell internally provided with a cavity and an axial flow fan arranged in the machine shell and used for driving gas to flow and further comprises a plurality of triangular filter screens fixedly connected into the cavity of the machine shell in a staggered mode. A water tank storing water is fixedly connected to the interior of the machine shell, one side of the water tank communicates with a plurality of water pipes, soft through pipes made of rubber are arranged in the multiple water pipes, and water spraying assemblies used for draining water are arranged in sleeves; and the dust collection plate is uniformly and rotationally connected to one side of each sleeve and used for adsorbing dust in the air. Two-way airflow circulation achieves self-cleaning, water mist and dust are combined, the weight is increased, sedimentation is accelerated, and the water mist and the dust are adsorbed by the dust suction plate to wet the filter screen.

Intake and gas separators for a downhole rotary pump define a fluid flowpath and comprise two or more intake stages arranged in parallel, with two or more of the intake stages each having one or more impeller. Multiple intakes may be configured in parallel and series, in some cases being provided as compact axial length gas separators.

The invention relates to the field of axial flow fans, and discloses an axial flow fan and a range hood comprising the axial flow fan, the axial flow fan comprises a shell, a rotating shaft, a blade assembly, a front mounting piece and a front suspension supporting plate, the blade assembly is arranged in a blade flow channel formed between the rotating shaft and the shell, and the front mounting piece is rotationally connected to the upstream end of the rotating shaft; the front suspension supporting plate is fixedly connected with the front installation piece and the shell, the thickness of the rear portion of the front suspension supporting plate is gradually reduced in the first direction, the thickness of the windward side in the portion, with the radius larger than the minimum radius of the upstream end of the blade flow channel, of the rear portion is larger than the thickness of the leeward side, and the windward side is provided with a bias flow section. The included angle between the contour tangent line of the bias flow section on the equal-radius face and the first direction is negative, so that fluid deflects relative to the axial direction after flowing through the front suspension supporting plate and then flows to the blade assembly, and the pressure rise efficiency of the axial flow fan is improved.

The invention relates to a vacuum pump, in particular a turbomolecular pump, with a housing and at least one pump stage arranged in the housing, comprising a stator and a rotor rotating relative to the stator about an axis of rotation during operation and cooperating with the stator to effectively pump, wherein the stator has at least one stator component with a surface having a first part and a second part different from the first part, and wherein the second part of the surface is uncoated and has a thermal emissivity ε of at least 0.25, preferably at least 0.3, at 50°C.

A mass damper is connected to a vacuum pump to reduce vibrations during operation. The mass damper includes a conic portion defined by a converging end and a diverging end and a damping mass connected to the converging end of the conic portion. The vacuum pump has a pump body, a vacuum inlet in fluid communication with an internal volume of a vacuum chamber, a vacuum outlet, and a rotor assembly disposed within the pump body. The rotor assembly is configured to rotate about a rotary axis to pump gas from the internal volume of the vacuum chamber out of the vacuum outlet. The conic portion may have a cone axis that is coaxial with the rotary axis of the vacuum pump.