502 results about "Pump chamber" patented technology

The invention relates to the technical field of magnetic pumps, and discloses a reverse driving impurity type magnetic pump which comprises a pump chamber, a water inlet, a water outlet and an impurity removal channel are formed outside the pump chamber, an impeller is arranged in the pump chamber, and the impeller is connected with an inner magnetic rotor shaft and is connected with an outer magnetic rotor shaft through a motor to drive rotation. Liquid in the water inlet axially flows into the pump chamber, a suction chamber is arranged in the water inlet and is a conical barrel with the cross section area gradually and uniformly shrunk, an inducer is arranged on the side, facing the water inlet, of the impeller, the inducer and the impeller coaxially rotate, the installation angle of blades of the inducer is small, and flow channels between the blades are long and wide. And the number of the blades is 2-4.

The utility model relates to the technical field of piezoelectric pumps, in particular to a novel fluid conveying device, which is characterized in that a vibration component is matched with a pump seat groove to define a pump cavity, the pump cavity is communicated with the outside through a pump inlet and a pump outlet which are arranged on a pump seat, and a first one-way valve and a second one-way valve are respectively arranged at the pump inlet and the pump outlet. The circulation holes in the first one-way valve and the second one-way valve are of a porous structure, and the pumping capacity of the fluid conveying device can be improved by increasing the total length of the edges of the circulation holes compared with a single-hole design with the same area. The fluid conveying device adopts a single-pump-cavity design, so that the overall size of the pump body can be obviously reduced, the pump inlet and the pump outlet are formed in the pump base and are provided with the first one-way valve and the second one-way valve respectively, and effective pumping-in and pumping-out of fluid in the same pump cavity are achieved; the fluid path is simplified, meanwhile, the turning process of the fluid is reduced, and therefore energy loss in the fluid pumping process is reduced.

The utility model discloses a novel anti-liquid-carrying pressing pump which comprises a pump body and a pressing head, the pump body comprises a pump chamber, the upper end of the pump body is provided with a ventilation hole, a connecting rod is fixed below the pressing head, a pumping device is arranged in the pump chamber, the upper end of the pump body is fixedly provided with a lock cover, and a brake is arranged between the lock cover and the connecting rod. An angle limiting structure capable of limiting the rotating angle of the brake is arranged between the brake and the lock cover, a lifting structure capable of enabling the brake to ascend or descend when the brake rotates is arranged between the brake and the lock cover, and a sealing part is arranged on the brake. The pressing head is pressed down and is in threaded connection with the brake through the connecting rod to be locked on the brake, the brake is in a falling state, the sealing part blocks the upper end of the pump chamber to cut off communication between the ventilation hole and the pump chamber, and the solution is prevented from flowing out of the ventilation hole when the bottle is extruded or toppled. When the pressing head rotates and unlocks, the brake is driven to rotate and ascends to enable the sealing part to loosen the upper end of the pump chamber, so that the ventilation hole is communicated with the pump chamber for normal use of the pressing pump.

The micropump comprises a silicon wafer, a first sealing piece and a second sealing piece, the silicon wafer is provided with a first face and a second face which are opposite to each other, a first groove used for forming a pump cavity is etched in the first face, and a plurality of grooves which meet the equal-width condition and are used for forming a moving body, an annular rib and a first valve body of an outlet valve are etched in the second face. The annular rib surrounds the moving body and is connected to a pump membrane around the moving body, and the first valve body is connected to a valve membrane of the outlet valve. The first sealing piece is fixed to the first face of the silicon wafer and covers the first groove to form a pump cavity. The second sealing sheet is fixed on the second surface of the silicon wafer. The second sealing sheet is provided with a connecting port used for connecting a driver at a position corresponding to the moving body. According to the micropump, through reasonable structural design, better etching uniformity can be obtained within shorter etching process time, the process cost is reduced, meanwhile, the product yield is improved, the situation that normal use in a low-temperature environment is affected due to the fact that much liquid is accumulated on the outlet valve is avoided, and the service life is prolonged.

This invention discloses a scraper-type permanent magnet synchronous electromagnetic pump. The pump body has a pump chamber with an opening at one end. An end cover is sealed and fixed to the opening end of the pump chamber. A cam rotor is installed in the pump chamber. The rotating shafts at the front and rear ends of the cam rotor are rotatably connected to the end cover and the pump body, respectively. One end of the upper scraper and the lower scraper are fixed to the inner wall of the pump chamber by upper and lower torsion springs, respectively, dividing the pump chamber into a low-pressure chamber on the left and a high-pressure chamber on the right. The upper and lower torsion springs apply a spring force pointing towards the axis of the cam rotor to the upper and lower scrapers, respectively. The volume of the low-pressure chamber is larger than that of the high-pressure chamber. A winding is embedded in the inner wall at the bottom of the pump chamber or the inner surface of the end cover. Correspondingly, a pair of permanent magnets is embedded in the end face of the cam rotor near the winding. When the cam rotor rotates, the upper and lower scrapers swing, and their free ends always press against the outer circumferential surface of the cam rotor, scraping the fluid on the surface of the cam rotor. The cam-blade rotor, in cooperation with the upper and lower scrapers, improves the overall stability.

The utility model discloses a novel piston-free pump head which comprises a pump chamber with an opening in the upper end, a resettable pump head body is installed in the pump chamber, a base cover used for being installed on a bottle opening is installed at the upper end of the pump chamber, a first protruding ring is arranged on the inner wall of the base cover, and the first protruding ring abuts against the outer wall of the pump head body. The installation gap between the base cover and the pump head is sealed, the pump head is pressed, air in the pump chamber enters the bottle through the air inlet hole, liquid in the bottle is discharged through the liquid outlet pipe and the pump head, the pump head is loosened, external air enters the pump chamber through the air supply channel, circulation is formed, an additional piston structure is not needed, and on the basis that normal liquid outlet is guaranteed, the working efficiency is improved. The structure is optimized, the production and assembly process is simplified, manufacturing is easier, the piston structure does not need to be damaged in the installation process, and the situation that the sealing effect of the piston structure becomes poor after repeated use, air leakage occurs, and consequently the product function is unstable is avoided.

A submersible pump (10) suitable for pumping liquid that includes suspended solids such as sewage, includes a housing (12) with a motor (34) and a pump chamber (66). The motor rotates an impeller (72) within the pump chamber and a slicer (92) that operates to slice solids before they enter the pump chamber into smaller pieces. The impeller vanes (130) have a vane height (H) that is at least 30% of the impeller diameter (D). The impeller has a continuous annular donut shape open area (144) that maintains solids suspended and flowing with the liquid into and out of the pump chamber.

The invention provides a wave energy converter system comprising:—at least two actuators (2) comprising each a buoy (3) and a liquid pump (4) mechanically connected to the buoy (3) to be driven by the buoy movements, and—an electric generator (7) mechanically connected to an hydraulic motor (6) fluidically connected to each liquid pump (4), for converting a motion of the buoys (3) into electrical power, the wave energy converter system being characterized in that it comprises a closed liquid loop system (30) configured to fluidically connect the pumps (4) of different actuators (2) together, by passing through the hydraulic motor (6), wherein the liquid is constrained to flow from the pumps (4) through the hydraulic motor (6), and wherein the liquid is constrained to flow from the hydraulic motor (6) to the pumps (4) In particular, when a first one of the buoys (3) exerts a force on its associated liquid pump (4) that is greater than the force exerted by a second buoy (3), the liquid in the pump chamber of liquid pump (4) linked to the first buoy is directed to the pump chamber of the liquid pump (4) linked to the second buoy (3), through the closed liquid loop system (30) and the hydraulic motor (6). Thus, the liquid moves through the closed liquid loop system (30) and produces electricity via a generator (7) driven by a hydraulic motor (6) as soon as there is a difference of forces between the buoys (3) of different actuators (2). Different forces are produced when different buoys are in a different phase of a wave (9).

This invention relates to the field of desulfurization equipment, and more particularly to a desulfurization device and method for flue gas from a prebaked anode calcining kiln. The device includes a spray chamber, a demister chamber installed at the top of the spray chamber, an exhaust stack installed at the top of the demister chamber, a liquid storage chamber installed at the bottom of the spray chamber, and a pump chamber installed on one side of the outer circumference of the liquid storage chamber. The output end of the pump chamber is connected to an inlet pipe, a first water outlet pipe, and a second water outlet pipe. The input end of the pump chamber is connected to an external water replenishment device. A ring frame is fixedly connected to the top of the first water outlet pipe, which is installed at the bottom of the demister chamber. Evenly distributed nozzles are installed on both the upper and lower parts of the ring frame. A conduit is fixedly connected to one side of the middle of the first water outlet pipe. This invention allows for flexible control of the fineness of the intercepting water curtain by adjusting the correspondence between the spray nozzles and the reserved openings through a rotatable inner pipe, significantly improving the interception efficiency of particulate impurities under different operating conditions and ensuring stable initial desulfurization and dust removal effects.

The utility model discloses a jigger. Comprising a main box body, a jigging chamber arranged in the main box body, a pumping chamber arranged in the jigging chamber, a piston arranged in the pumping chamber, a screen arranged at the top of the jigging chamber, an auxiliary box body fixedly arranged on one side of the main box body, and a driving device arranged on the auxiliary box body and used for driving the piston to reciprocate up and down, a water-permeable hole is formed in a bottom plate at the bottom of the piston, a water-permeable seat is fixedly connected to the position, where the water-permeable hole is located, of the lower portion of the bottom plate, the interior and the exterior of the water-permeable seat are communicated, and a floating baffle is arranged in the water-permeable seat. When the piston ascends, the baffle falls at the bottom of the water permeable seat, a gap is formed between the baffle and the sealing ring, and water above and below the piston can flow through the gap, so that the suction effect of the piston is greatly reduced, the descending speed of the water level in the jigging chamber is delayed, and layering of raw coal is facilitated; and the coal gangue, middling coal and clean coal in the raw coal have enough time to be sorted, so that the sorting effect is improved.

The present invention relates to an automotive pendulum-slider pump (10, 10') for providing pressurized lubricant. The automotive pendulum-slider pump (10, 10') includes a non-rotatable rotor housing (12); a rotatable rotor ring (20, 20') that rotates within the rotor housing (12) and surrounds a pumping chamber (25) having an intake opening (18) and an exhaust opening (19); a rotatable rotor hub (35) that is rotatably connected to the rotor ring (20, 20'); and a plurality of pendulum blades (30) arranged at equal angles on the circumference of the rotor ring (20, 20') and each blade (30) is pivotally hinged by a separate pendulum hinge (32) at the rotor ring (20, 20'). The vanes (30) divide the fluid in the pumping chamber (25) into multiple pumping compartments (40), wherein the pumping chamber (25) is equipped with an automatically switching pressure matching valve (50, 50') for pre-opening the fluid connection between at least one pre-openable pumping compartment (40B) and the discharge opening (19) just before the pumping compartment (40B) has reached the discharge opening (19). The pre-opening fluid connection provides pressure matching between the pre-openable pumping compartment (40B) and the discharge pressure to reduce noise emissions caused by pressure pulsations resulting from sudden pressure equalization that occurs when the pumping compartment (40) reaches the discharge opening (19).

The invention discloses an explosion type atomizing pump which comprises a pump chamber, an upper pump rod is arranged in the pump chamber, a lock cover capable of preventing the upper pump rod from being separated is arranged in the upper end of the pump chamber, a lower pump rod is inserted into the lower portion of the upper pump rod, and a piston is arranged on the outer wall of the lower pump rod. The pump is characterized in that a sealing ejector pin capable of sealing a liquid outlet of the lower pump rod is arranged in the upper pump rod, an upper jacking spring capable of driving the sealing ejector pin to move towards the lower pump rod is arranged in the upper pump rod, a lower jacking spring is arranged in the lower portion of the pump chamber, the upper end of the lower jacking spring is jacked on the piston, and the lower end of the lower jacking spring is jacked on the liquid outlet of the lower pump rod. A liquid inlet pipe is arranged at the lower end of the pump chamber, and a pump bead is arranged in the liquid inlet pipe. In order to overcome the defects in the prior art, the invention provides the spraying pump which is simple in structure, can realize quick and powerful explosive spraying, and can effectively avoid liquid drops during slow pressing.

There is provided a method (400) of manufacturing a clamshell stator for a vacuum pump comprising providing (410) a first half-shell stator component and a second half-shell stator component, wherein the first half-shell stator component and the second half-shell stator component comprise respective first and second internal walls for defining a plurality of pump chambers having gas transfer passages arranged therebetween; boring (420) a first bore extending through one or more of the first internal walls and defining first portholes; boring (430) a second bore extending through one or more of the second internal walls and defining second portholes; arranging (440) a first sealing means and a second sealing means respectively to seal one or more of the first portholes and second portholes such that a fluid connection is provided between the outlet and inlet of adjacent pump chambers.

The present invention provides a pump device that can prevent the air venting passage from being blocked by the thrust bearing. [Solution] The pump device 1 has a thrust bearing 13 positioned opposite the second radial bearing 12 at one end L1 in the axial direction of the rotor member 51. The rotor member 51 is provided with a through-hole 7 extending axially between the magnet 52 and the rotating shaft 10. The through-hole 7 communicates with the pump chamber 30 via a one-sided opening 73 that opens at the end face of one side L1 in the axial direction of the rotor member 51. The one-sided opening 73 comprises an inner circumferential portion 73A of the opening that is closed by the thrust bearing 13, and an outer circumferential portion 73B of the opening that opens on the outer side of the outer edge of the thrust bearing 13.

The present invention provides a liquid discharge system capable of inhibiting deterioration of landing position accuracy caused by electrification of liquid. This liquid discharge system includes a liquid discharge head (30) provided with a fluid pump chamber (314), a pump chamber communication fluid path (312), and a nozzle, the liquid discharge head having formed, at an end thereof, a nozzle opening (310) for discharging a liquid. The liquid discharge system includes a liquid supply device (100) for supplying the liquid to the liquid discharge head. The liquid supply device is provided with a first tank (114) for storing the liquid, and a first flow path member (116) linked to the first tank and to the liquid discharge head and using non-fluororesin as a material of a portion to be in contact with the liquid.

Magnetic pump with pump chamber and drive area with containment shell, characterized in that at least one mechanical seal (GLRD, 3) is arranged between the pump chamber (2) and the magnetic drive / bearing (10, 13).

A pump device, a respiratory device and a method for providing a respiratory gas. A specially formed rotor and a corresponding pump chamber are used so that an approximately sinusoidal flow of an out-flowing fluid is possible. With the combination of two pump chambers with rotors driven in a 180° phase-shifted manner to one another, an almost constant flow can be created at a common outlet. In addition, the system is designed to be highly dynamic with simultaneously relatively low energy consumption.

A piston pump for a high pressure cleaning device is provided, having a pump housing, which includes a first housing part and a second housing part. The first housing part forms a suction conduit and a pressure conduit, and the second housing part forms a plurality of pump chambers each in flow connection with the suction conduit by an inlet channel and with the pressure conduit by way of an outlet channel. The first insert part includes an inlet valve seat and a guide member arranged offset from said inlet valve seat. The inlet closing body includes an inlet valve stem that adjoins the inlet valve plate and is displaceably mounted on the guide member. The first insert part includes an annular inlet valve seat body that points toward the pump chamber and forms the inlet valve seat, wherein the guide member is arranged upstream of the inlet valve seat.

This application provides a triboelectric self-sensing piezoelectric pump for drug delivery, a flow monitoring device, and a method, relating to the field of fluid transport and flow monitoring. A first friction part of a triboelectric sensor is disposed on an actuating component, and a second friction part is disposed on the inner wall of the pump body. When the actuating component vibrates to control the change in pump chamber volume, driving liquid to flow out through the inlet channel and pump chamber from the outlet channel, the first friction part passively follows the actuating component in synchronous vibration, synchronously changing the gap between the first and second friction parts. An electrical signal corresponding to the vibration of the actuating component is output from the second friction part, and this electrical signal can be calibrated as the corresponding liquid flow rate. This enables long-term, continuous, and accurate flow monitoring of wearable piezoelectric pumps, thereby improving the drug delivery safety and control accuracy of wearable piezoelectric pumps used in medical applications.

A fluid ejector includes a nozzle layer, a body, an actuator and a membrane. The body includes a pumping chamber, a return channel, and a first passage fluidically connecting the pumping chamber to an entrance of the nozzle. A second passage fluidically connects the entrance of the nozzle to the return channel. The actuator is configured to cause fluid to flow out of the pumping chamber such that actuation of the actuator causes fluid to be ejected from the nozzle. The membrane is formed across and partially blocks at least one of the first passage, the second passage or the entrance of the nozzle. The membrane has at least one hole therethrough such that in operation of the fluid ejector fluid flows through the at least one hole in the membrane.

The present invention is provided with: an electromagnet; a movable plate attracted by the electromagnet by a magnetic field generated by energization of the electromagnet; a plate spring to which the movable plate is attached and which biases the movable plate in the direction opposite to the attraction operation in accordance with the attraction operation of the movable plate to the electromagnet; a flow path through which a fluid flows; a pump chamber provided on the flow path; and a piston that is provided to the movable plate and that operates so as to reduce or increase the volume of the pump chamber in accordance with the operation of the movable plate, the magnetic core of the electromagnet having a winding portion around which a coil is wound at the center portion in the direction of the magnetic field, and having a pair of broadened portions formed so as to protrude toward the movable plate side with respect to the winding portion at both end portions, the widening section is formed so as to protrude by the same amount in the width direction orthogonal to the direction of the magnetic field, and a portion of the flow path including the pump chamber is disposed adjacent to the widening section at a position on the opposite side from the winding section, and the flow direction is disposed along the width direction. The piston is disposed adjacent to the movable plate at a position on the opposite side of the winding portion with the widening portion therebetween.

The invention relates to the technical field of piezoelectric pumps, in particular to a high-output-performance micro piezoelectric pump which comprises a pump body, an ultrasonic actuator which is arranged in the pump body and divides a pump cavity into a first cavity and a second cavity, and a first air inlet channel, a first air outlet channel, a second air inlet channel and a second air outlet channel which communicate with the two cavities correspondingly. A series connection piece is arranged between the first air outlet channel and the second air inlet channel, so that the two cavities are connected in series to improve the output pressure; or a parallel connecting piece is arranged between the first air outlet channel and the second air outlet channel, so that the two cavities are connected in parallel to improve the output flow. The double independent cavities are arranged in the single pump body and matched with a selectable series-parallel connection structure, so that the output pressure or flow of the pump is increased under the condition that the overall size is not increased, the miniaturization design of products is facilitated, meanwhile, the flow channel resistance is reduced, and the transmission efficiency is improved.

An electric pump includes a casing, an impeller, and an electric motor. The casing defines an inlet, an outlet, and a pumping chamber. The impeller rotates in the pumping chamber along an axis, the inlet ingressing fluid axially, and the outlet egressing fluid transversely. The motor includes a rotor and a stator operable to interact with one another via a magnetic air gap. The stator is provisioned by a printed circuit board (PCB) and a magnetically permeable stator core. The PCB is disposed transverse to the axis and has a first face proximal to the air gap and a second face distal to the air gap, the stator core disposed adjacent to the PCB second face. The rotor includes a permanent magnet structure connected to the impeller and rotatable so that a continual magnetic attractive force is directed along the axis between the magnet structure and the stator core.

An eccentric screw pump with a helical rotor and a stator made of an elastomer material, in which the rotor rotates by forming several pump chambers, wherein the stator is vulcanized into a preferably metal support pipe, wherein the stator has at least one sensor, which is inseparably connected to the stator, wherein the inseparable connection between the stator and senor is made by vulcanization.

This utility model discloses a pump head and a metering nasal spray device with the pump head, including a connecting cap for connection to a bottle body, and a pump assembly for metering liquid dispensing connected inside the connecting cap. The pump assembly includes a pump chamber, an upper pump rod disposed within the pump chamber, an inlet channel within the upper pump rod, an inlet on the outer wall of the upper pump rod communicating with the inlet channel, a limiting part on the outer wall of the upper pump rod, a piston movably sleeved on the upper pump rod, an upper pressure spring between the piston and the limiting part, a lower pump rod disposed below the piston, and a one-way valve mechanism at the inlet end of the pump chamber. The one-way valve mechanism includes a fixed seat and a pump ball disposed in the fixed seat, and a receiving groove on the fixed seat for accommodating the end of the upper pump rod. This utility model has a simple structure. By restricting the movement of the pump ball in a limited space through the fixed seat, the fixed seat can guide the upper pump rod to maintain axial movement, avoiding lateral swing, allowing the pump ball and pump chamber to seal and open quickly, resulting in a more stable and precise pumping volume.

The invention provides a pump device capable of improving versatility even if the shape of a suction part or a discharge part must be changed according to the purpose. A pump device (2) is provided with a pump body (3) and a cover member (4) attached to the pump body (3). The pump main body (3) is provided with a housing (8) that houses the motor and the impeller, and the housing (8) has formed therein a pump chamber in which the impeller and the rotor are disposed, an inflow port (14p) through which the fluid flowing into the pump chamber passes, and an outflow port (14r) through which the fluid flowing out from the pump chamber passes. The cover member (4) is provided with at least one of a suction part (4d) that sucks in fluid from the outside of the pump device (2) toward the inlet (14p), and a discharge part (4e) that discharges fluid from the outlet (14r) toward the outside of the pump device (2).

What is suggested is a micromembrane pumping device for pumping a fluid, having: a pump chamber to which an inlet valve, an outlet valve, and a membrane device for varying a volume of the pump chamber are associated, wherein the membrane device has a plate-shaped actuator for deforming the membrane device; and influencing means for influencing the plate-shaped actuator and the volume of the pump chamber; wherein the membrane device has a plate-shaped membrane body limiting the pump chamber; wherein the plate-shaped actuator is arranged on a side of the plate-shaped membrane body facing away from the pump chamber; wherein the plate-shaped actuator is mounted to and electrically insulated from the plate-shaped membrane body by an electrically insulating glue layer; wherein at least one embedded portion of a support body at or in which a deformation sensor for detecting a deformation of the membrane device is arranged, is arranged within the glue layer to detect the volume of the pump chamber; wherein the influencing means, the plate-shaped actuator and the deformation sensor form a closed-loop control circuit for regulating a volume flow.

The invention relates to a system for dispensing a liquid foam, in particular a direct foam cleaning product, comprising a container for a liquid and a dispensing device connected to the container. Here, the dispensing device comprises a pump comprising a pump chamber in fluid communication with the container and a piston arranged in the pump chamber, the piston and the pump chamber being movable relative to each other; an outlet channel connecting the pump chamber to a nozzle; a pre-compression valve arranged between the outlet channel and the nozzle; and a buffer comprising a buffer chamber connected to the outlet channel, the buffer chamber comprising a compressible variator arranged therein for varying the usable volume of the buffer chamber; wherein the nozzle, the buffer and the pump are configured and dimensioned such that the foam is dispensed in a predetermined spray pattern.

A vacuum pump (100) comprising: a stator (102) comprising: a first end wall (110) at a first end (111) of the stator (102); a second end wall (112) at a second end (113) of the stator (102), the second end (113) of the stator (102) being opposite the first end (111) of the stator (102); and one or more side walls (114) disposed between the first end wall (110) and the second end wall (112); wherein the first end wall (110), the second end wall (112), and the one or more side walls (114) define a pump chamber (104); the first end wall (110) comprising a first opening (116) therethrough; and the vacuum pump (100) further comprises a first end plate (120) which is removably arranged in the first opening (116).

A handheld filter press includes a pump, a water chamber, and a portafilter basket. The pump includes a pump housing that defines a pump chamber configured to pressurize air, and defines a pump outlet for exhausting pressurized air. The pump includes an outlet valve fluidly connected with the pump outlet. The outlet valve allows air to exit the pump chamber and prevents air from entering the pump chamber through the pump outlet. The water chamber is fluidly connected with the pump chamber through the outlet valve for receiving pressurized air from the pump chamber. The water chamber defines a water chamber outlet for exhausting pressurized air and water from the water chamber. The portafilter basket is fluidly connected with the water chamber for receiving pressurized water from the water chamber through the water chamber outlet. The portafilter basket is configured to store grounds, and to express a brewed beverage.