33977results 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 portable fan includes an airflow portion and a handheld portion. The airflow portion includes rotation air blades and a drive portion that is driveably connected to the rotation air blades. The drive portion is a three-phase motor that is configured to drive the rotation air blades to rotate to generate an airflow. The handheld portion is connected to the airflow portion. A power supply assembly is arranged inside the handheld portion; and the power supply assembly is electrically connected to and supply power to the three-phase motor.

A gas turbine engine comprises a fan, a core turbine engine coupled to the fan, a fan case housing the fan and the core turbine engine, a plurality of outlet guide vanes extending between the core turbine engine and the fan case, and an acoustic spacing. The fan comprises a plurality of fan blades that define a fan diameter and a BEAL. The fan case comprises an inlet and an inlet length between the inlet and the fan. The acoustic spacing comprises a distance between the fan and the plurality of outlet guide vanes, and in combination with the BEAL determines an acoustic spacing ratio of the gas turbine engine.

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.

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.

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.

An engine for aeromechanical instability abatement includes a sensor configured to capture data from rotating blades of the engine system, a airflow effector device, and an engine controller. The engine controller is configured to control the airflow effector device according to a nominal schedule, detect, based on a signal from the sensor indicating a vibration amplitude of the rotating blades within a frequency band, an incipient instability condition, in response to the incipient instability condition being present, determine a modified control parameter for at least one of the airflow effector device, and control the airflow effector device according to the modified control parameter, deviating from the nominal schedule.

The invention discloses a dredge pump control system and method for river regulation, and relates to the technical field of dredge pump control. The dredge pump control system comprises a sensing module, a centralized control module, an energy-saving execution module and a control parameter recording module; the sensing module is arranged on a multi-element sensor at a key part of a dredge pump for acquiring data, and the data is pre-processed by a microprocessor and then transmitted to the centralized control module at a high speed by a wireless transmission module, so that an accurate basis is provided for system control; according to the invention, by integrating multiple sensors and an advanced control algorithm, the dredging efficiency and accuracy of the dredge pump of the dredger are obviously improved; the sensing module can monitor key parameters of the dredge pump in real time, such as suction pressure, discharge flow, pump shaft temperature and sediment concentration, and it is ensured that the running state of the dredge pump is comprehensively known; and the centralized control module dynamically optimizes a control sequence by using a model predictive control and fuzzy logic control algorithm so as to adapt to variable working conditions.

The invention relates to the technical field of high-pressure dredge pump simulation calculation, and discloses a construction and application method of a high-pressure efficient dredge pump simulation calculation model. A model is established based on dynamic fluid-solid coupling parameters (mud pulsating pressure, impeller dynamic stress and the like), soil multiphase rheological parameters (particle phase volume fraction, viscous resistance coefficient and the like) and pipeline transient resistance parameters (transient pressure drop gradient and the like), and factors such as rotating speed-power matching and the like are incorporated to calculate an operation envelope and a critical failure threshold. A multi-physics field coupling analysis system comprising parameter configuration, dynamic simulation (integrating a flow field and a structural vibration solver) and a safety evaluation module is developed, after actually measured data and self-defined parameters are input, dynamic flow velocity distribution, pressure pulsation characteristics and the like are obtained through fluid-solid bidirectional coupling calculation, and an optimal configuration scheme is generated. The system supports database management, multi-rheological model matching and three-dimensional visualization, the simulation precision and the engineering efficiency are improved, and support is provided for performance optimization and safety evaluation of the high-pressure working condition.

The present disclosure provides a neck fan. The neck fan includes a hanging shell and a first fan assembly. The hanging shell includes an inner end portion that is in contact with the neck. A first air guide chamber having a first central axis is arranged on the hanging shell in a protruding manner. The first air guide chamber includes a first air inlet arranged at a lower end portion of the hanging shell and a first air outlet opposite to the first air inlet. The first air outlet is oriented towards the inner end portion. Both the first air inlet and the first air outlet are located on the first central axis. The first fan assembly is located in the first air guide chamber. And the first fan assembly is configured to drive an air flow to flow from the first air inlet to the first air outlet.

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.

A fluid transfer device for a turbomachine with longitudinal axis X, which includes a stator portion intended to be connected to a stator equipment of the turbomachine and a rotor portion engaged in the stator portion. The stator equipment including at least one conduit fluidly connected to at least one pipeline of the stator portion, the stator portion and the stator equipment including an attachment interface intended to releasably receive attachment members, the attachment interface and the attachment members being configured so as to make a sealed coincidence of the pipelines and conduit, and the transfer device comprising at least one passage allowing the access of an external tool upstream of the transfer device for accessing the attachment members and passing through the transfer device in either side.

Provided are a fan blade and a neck fan. The fan blade comprises a base, a plurality of outer blades, and a plurality of inner blades. The base is generally circular and protrudes in the middle, including an annular outer disc, a connecting cylinder, and a circular inner disc. The outer disc is annularly arranged on the outside of the bottom end of the connecting cylinder, and the inner disc seals the top end of the connecting cylinder. The inner disc is used for connecting the output shaft of the driving mechanism. The outer blades are annularly arranged on the outside of the outer disc, and the inner blades are annularly arranged on the outside of the inner disc, so that both the outer blades and the inner blades are located on the same side of the base, and the outer blades and the inner blades are spaced apart.

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 provides an air purifier including an outer case having a filtering cavity and a driving cavity spaced apart from each other, a filter received in the filtering cavity, a driving fan received in the driving cavity. The outer case has at least one air inlet and an air output. An air hub extends into the driving cavity. The air hub includes a first air drawing frame and a second air drawing frame coaxially formed with respect to the filter. An axial direction of the first air drawing frame is aligned with a longitudinal axis of the driving fan. The second air drawing frame extends peripherally, upwardly and radially from the first air drawing frame into the driving cavity.

A blood pump includes an impeller; a drive shaft coupled to the impeller and configured to rotate with the impeller; a motor configured to drive the impeller; and a bearing assembly disposed adjacent the motor and configured to receive an end of the drive shaft. The bearing assembly includes a bearing, where the end of the drive shaft is at least partially rounded, and the where the bearing includes a concave depression defined in a first side of the bearing, where the depression is configured to receive the end of the drive shaft. The bearing assembly may include a lubricant chamber configured to hold a lubricant.

To simplify a cooling circuit of an electric vehicle.SOLUTION: An electric pump 1 is provided in a cooling circuit in which a cooling medium circulates in an electric vehicle. The electric pump 1 includes an inlet port 6 for taking in the cooling medium, and a plurality of outlet ports 7 for discharging the cooling medium. The outlet ports 7 have inside diameters different from each other. The electric pump 1 has the plurality of outlet ports 7, and therefore, a flow passage of the cooling circuit is branched into a plurality of flow passages on a downstream side of the electric pump 1. The outlet ports 7 have the inside diameters different from each other, and therefore, a flow rate of the cooling medium can be optimized in each of the flow passages on the downstream side of the electric pump 1.SELECTED DRAWING: Figure 2

Apparatus and methods are described including a ventricular assist device that includes a frame having struts that define a plurality of cells. In its non-radially-constrained configuration, the frame includes a generally cylindrical portion. A tube defines blood outlet openings, and a portion of the tube is disposed outside the frame and is coupled to the generally cylindrical portion of the frame, such that the portion of the tube conforms with a structure of struts of the frame. An inner lining is coupled to an inside of the generally cylindrical portion of the frame, such as to provide the generally cylindrical portion of the frame with a smooth inner surface. An impeller is disposed at least partially inside the generally cylindrical portion of the frame and is configured to pump blood through the tube and out of the one of more blood outlet openings. Other applications are also described.

A blower (1) for a fuel cell assembly for recirculating a gas mixture used for operating the fuel cell assembly is equipped with a drive motor (7, 8, 9) comprising a rotor (9) coupled to a motor shaft (7) and a stator (8) arranged radially outside the rotor (9). An annular channel (10) is provided radially between the rotor (9) and the stator (8) for conveying the gas mixture from an inlet side to an outlet side of the annular channel (10). A blower impeller (5) coupled to the motor shaft (7) is provided in the region of the outlet side of the annular channel (10) to convey the gas mixture from the inlet side to the outlet side of the annular channel (10) when rotating. Furthermore, a flow guide device (14) is provided to impart a circumferential swirl to the gas mixture entering the annular channel (10).The annular channel (10) is bounded by an assembly consisting of an outer wall (16; 21) and an inner wall (17), wherein the flow guide device (14) is provided on the inlet side between the outer wall (16; 21) and the inner wall (17).

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.

A handheld fan comprises a mesh grid assembly, a motor, and fan blades, wherein the mesh grid assembly comprises a front mesh component and a rear mesh component, the front mesh component and the rear mesh component are fixedly combined with each other, at least one portion of the front mesh component extends in a direction away from the rear mesh component, and at least one portion of the rear mesh component extends in a direction away from the front mesh component; the motor is accommodated between the front mesh component and the rear mesh component, and the motor drives the fan blades to rotate between the front mesh component and the rear mesh component.

A turbine engine with an engine core defining an engine centerline and comprising a rotor and a stator. The turbine engine including a set of composite airfoils circumferentially arranged about the engine centerline and defining at least a portion of the rotor. An airfoil in the set of composite airfoils including a composite portion extending chordwise between a composite leading edge and a trailing edge and a leading edge protector coupled to the composite portion.

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.

Disclosed is a multifunctional outdoor fan. The multifunctional outdoor fan includes a fan base, a fan support, and a fan head. The fan head is provided with a rotating shaft, fan blades mounted on the rotating shaft, and a fan grille mounted outside the fan blades. The fan grille is provided with a water tank, the water tank is provided with a water injection port, and the water injection port is connected to a water tank cover. The rotation shaft is provided with an atomization assembly, the atomization assembly is in communication with the water tank through a water tube, the water tank supplies water to the atomization assembly through the water tube, and the atomization assembly is provided with an atomization port.

The present application relates to the technical field of purification equipment, and in particular, to a vibration damping and noise reduction device, a fan, and a range hood. The vibration damping and noise reduction device includes a damping plate, a buffer plate, and an elastic buffer member. The damping plate and the buffer plate are spaced apart facing each other, and the damping plate is used to fit with the fan cover plate. The elastic buffer member is disposed between the damping plate and the buffer plate, and both ends of the elastic buffer member are respectively abutted against and connected to the buffer plate and the damping plate. The elastic buffer member can expand and contract in a direction perpendicular to the damping plate, so that when the fan operates and generates vibrations, the expansion and contraction deformation of the elastic buffer member can extend the time of vibration transmission to reduce the impact force generated by the vibration. Furthermore, under the combined action of the damping effect of the damping plate and the elastic buffer member, the vibration of the fan can be more effectively alleviated, and the working noise of the fan can be reduced.

The invention relates to the technical field of wind power operation and maintenance technologies, and discloses a combined heat dissipation system of a fan, the system comprises a multi-source sensing module, a decision control module, a heat dissipation execution module and a safety early warning module, and by setting multi-mode cooperative control, when fan heat dissipation regulation and control are carried out, the heat dissipation of the fan can be controlled in a multi-mode cooperative mode; a dynamic matching mechanism of temperature field characteristics and heat dissipation modes is established, and air cooling, liquid cooling and phase change strengthening modes are automatically switched in real time according to the temperature rise rate and the heat distribution gradient, so that the system can accurately adapt to heat dissipation requirements under different working conditions, timely heat dissipation of a high-temperature core area is guaranteed, the heat dissipation response accuracy is improved, and the service life of the system is prolonged. By arranging the three-dimensional thermal field balancing system, the hot area distribution difference of the bearing, the winding and the power module is recognized in real time, the cooling liquid flow and the airflow guide angle are dynamically adjusted, the three-dimensional thermal unbalance phenomenon in a traditional heat dissipation mode is eliminated, and it is guaranteed that the temperature gradient of all areas in the motor is always kept within a safety threshold value.

Apparatus and methods are described including delivering a left-ventricular assist device to a subject's aorta. The device including a distal-tip element that defines a straight proximal portion, and a curved distal portion, the curved distal portion defining first and second curves with an elongated straight portion between the first and second curves. The distal-tip element is centered with respect to the aortic valve using the curved distal portion of the distal-tip element, to thereby guide the device through the subject's aortic valve atraumatically. A pump pumps blood through from the subject's left ventricle to the subject's aorta. Other applications are also described.

The utility model provides a cantilever type magnetic drive pump, and belongs to the technical field of pumps. The technical problem that an existing cantilever type magnetic drive pump is not good enough in sealing effect is solved. A cantilever type magnetic drive pump comprises a pump shell and a motor shell, a stator assembly is fixedly installed between the pump shell and the motor shell, a rotor assembly rotating relatively is embedded in the stator assembly, an impeller is fixedly connected to the rotor assembly, the stator assembly comprises a stator shielding sleeve and a stator assembly wrapped by the stator shielding sleeve, and a concave cavity is formed in the middle of the stator shielding sleeve. The bottom of the concave cavity protrudes towards the impeller to form an installation column, a reinforcing piece is arranged in the installation column, the rotor assembly is embedded into the concave cavity and fixedly and rotatably arranged outside the installation column in a sleeving mode, the installation column penetrates through the middle of the rotor assembly, and the impeller is fixedly connected to the rotor assembly. The sealing device is good in sealing effect and stable in rotation.

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.