Piezoelectric pump casing and space arrangement

    公开(公告)号:US12180954B2

    公开(公告)日:2024-12-31

    申请号:US17504681

    申请日:2021-10-19

    Inventor: Kenjiro Okaguchi

    Abstract: A pump device (1) includes a piezoelectric pump (10) and an outer casing (70). The piezoelectric pump (10) includes a pump casing having inlets (400) and an outlet (520), a vibration plate (31) disposed inside the pump casing and dividing an internal space (500) of the pump casing into a first space (501) on a side near the inlets (400) and a second space (502) on a side near the outlet, and a piezoelectric element (20) disposed on the vibration plate (31). The outer casing (70) forms a flow path composed of an internal space (700) that allows communication between an external inlet (701), which communicates with the outside, and the inlets (400). The flow path has a part that is parallel to an outer main surface (40op) of the pump casing in which the inlets (400) are formed, the part being located outside the outer main surface (40op).

    Conveying device containing shape memory alloy

    公开(公告)号:US12180949B2

    公开(公告)日:2024-12-31

    申请号:US17295910

    申请日:2019-11-21

    Abstract: A transport device (400) comprises a housing (410), an actuator (430), a drive (450) and a sealing element (470). The housing has a fluid inlet (411, 413) and a fluid outlet (413, 411). The actuator (430) comprises a magnetic shape-memory alloy, and the actuator (430) is arranged at least in sections in the housing (410). The actuator (430) can be deformed by the drive (450) in such a way that two cavities (635, 635′) for the fluid are formed in the actuator (430), which cavities can be moved by the drive (450) in order to transport the fluid in the cavities (635, 635′) from the fluid inlet (411, 113) to the fluid outlet (413, 411). The sealing element (470) has at least one recess (471, . . . ), and the sealing element (470) is arranged in the housing (410) in such a way that the cavities (635, 635′) are at least temporally in fluid communication via the recess (471, . . . ) during the transport of the fluid from the fluid inlet (411, 413) to the fluid outlet (413, 411).

    FLUID CONTROL SYSTEM
    5.
    发明申请

    公开(公告)号:US20240426287A1

    公开(公告)日:2024-12-26

    申请号:US18708039

    申请日:2022-11-08

    Applicant: LEE VENTUS LTD

    Abstract: A fluid control system comprising: a first channel for carrying a gas in and out of the fluid control system; a reservoir for said gas, wherein the reservoir includes a first pressure sensor arranged to measure a pressure of the gas in the reservoir; a pump for pumping said gas between the first channel and the reservoir, wherein the system is arranged such that a quantity of the gas displaced in the first channel depends on a change in pressure of the gas in the reservoir.

    DIAPHRAGM PUMP WITH MULTIPLE DISCHARGE TUBES

    公开(公告)号:US20240401582A1

    公开(公告)日:2024-12-05

    申请号:US18691499

    申请日:2022-09-16

    Applicant: Un Young JO

    Inventor: Un Young JO

    Abstract: A diaphragm pump which has multiple discharge tubes and discharges fluid from each of the discharge tubes, includes: a powertrain housing; a motion conversion housing; and a pump housing which includes: a diaphragm frame having multiple diaphragms; a pressure frame; a separation frame; and a discharge frame. The pump housing further includes: a first flow channel leading from the first suction valve, the first pressure chamber, the first discharge valve, and the first discharge tube; and a second flow channel leading from the second suction valve, the second pressure chamber, the second discharge valve, and the second discharge tube.

    Hydraulic growing rod
    7.
    发明授权

    公开(公告)号:US12156683B2

    公开(公告)日:2024-12-03

    申请号:US17899464

    申请日:2022-08-30

    Abstract: A bone implant system may include a plurality of bone anchors, a superior rod attachable to a superior portion of a bone via the bone anchors, and an inferior rod attachable to an inferior portion of the bone via the bone anchors. The superior rod may have a superior end, and the inferior rod may have an inferior end. The superior rod may telescopically engage the inferior rod such that a cavity is present within at least one of the superior rod and the inferior rod and such that a length of the combined superior and inferior rods, measured between the superior end and the inferior end, is adjustable. The cavity may contain a micropump and a chamber. The micropump may be configured to expel fluid into the chamber to urge the length to increase.

    DOUBLE MEMBRANE PUMP
    8.
    发明公开

    公开(公告)号:US20240344509A1

    公开(公告)日:2024-10-17

    申请号:US18635512

    申请日:2024-04-15

    Applicant: Timmer GmbH

    Inventor: Herbert Timmer

    CPC classification number: F04B43/026 F04B43/04 F04B53/146 F04B43/0736

    Abstract: A double membrane pump having a casing and a piston rod movably received in the casing, the casing having at least one inlet opening and at least one outlet opening, and a first membrane is arranged at one end of the piston rod and a second membrane is arranged at the other end of the piston rod. The first membrane is arranged in a first chamber of the double membrane pump and the second membrane is arranged in a second chamber. The membranes are designed to separate the chambers into a product chamber and an expansion chamber respectively. The pump has a drive device for bringing about a translational movement of the piston rod. The double membrane pump has a piston rod which is designed to perform a self-regulated, oscillating movement and thus enables simplified control of the membranes.

    ROLLING DIAPHRAGM PUMP
    9.
    发明公开

    公开(公告)号:US20240167465A1

    公开(公告)日:2024-05-23

    申请号:US18381810

    申请日:2023-10-19

    CPC classification number: F04B43/0063 F04B43/04 F16H37/00 F16H25/18

    Abstract: A rolling diaphragm pump includes a housing, a rolling diaphragm, a piston, a motor, and a ball screw. Rotational motion of the motor is converted into linear motion by the ball screw to cause the piston to reciprocate, and a volume of a pump chamber is changed by deformation of the rolling diaphragm, thereby sucking and discharging a transport fluid. The ball screw includes a screw shaft placed coaxially with an axis and rotationally driven about the axis relative to the housing by the motor, and a nut portion screwed to the screw shaft so as to be reciprocatable in an axial direction and having an insertion hole formed over an entirety thereof in the axial direction at a position eccentric to the axis. A guide shaft configured to guide reciprocation in the axial direction of the nut portion is inserted through the insertion hole of the nut portion and fixed to the housing.

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