公开(公告)号：US20240344509A1

公开(公告)日：2024-10-17

申请号：US18635512

申请日：2024-04-15

申请人： Timmer GmbH

发明人： Herbert Timmer

IPC分类号： F04B43/02 ,  F04B43/04 ,  F04B43/073 ,  F04B53/14

CPC分类号： F04B43/026 ,  F04B43/04 ,  F04B53/146 ,  F04B43/0736

摘要： 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.

公开(公告)号：US20240167465A1

公开(公告)日：2024-05-23

申请号：US18381810

申请日：2023-10-19

申请人： NIPPON PILLAR PACKING CO., LTD.

发明人： Keisuke Murata ,  Atsufumi Kinoshita

IPC分类号： F04B43/00 ,  F04B43/04 ,  F16H37/00

CPC分类号： F04B43/0063 ,  F04B43/04 ,  F16H37/00 ,  F16H25/18

摘要： 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.

公开(公告)号：US20240136252A1

公开(公告)日：2024-04-25

申请号：US18207635

申请日：2023-06-07

申请人： Frore Systems Inc.

发明人： Suryaprakash Ganti ,  Seshagiri Rao Madhavapeddy

IPC分类号： H01L23/473 ,  B06B1/06 ,  F04B17/00 ,  F04B39/06 ,  F04B43/04 ,  F04B43/09 ,  F04B45/04 ,  F04B45/047 ,  F04B53/10 ,  F04D33/00 ,  F25B21/02 ,  H01L23/42 ,  H01L23/427 ,  H01L23/433 ,  H01L23/46 ,  H04M1/02 ,  H05K7/20 ,  H10N30/00 ,  H10N30/20 ,  H10N30/80 ,  H10N35/80

CPC分类号： H01L23/4735 ,  B06B1/06 ,  F04B17/003 ,  F04B39/06 ,  F04B43/04 ,  F04B43/046 ,  F04B43/095 ,  F04B45/043 ,  F04B45/047 ,  F04B53/1077 ,  F04D33/00 ,  F25B21/02 ,  H01L23/42 ,  H01L23/427 ,  H01L23/433 ,  H01L23/4336 ,  H01L23/46 ,  H01L23/473 ,  H04M1/0202 ,  H05K7/20 ,  H05K7/20009 ,  H05K7/20272 ,  H05K7/20281 ,  H05K7/2039 ,  H10N30/00 ,  H10N30/20 ,  H10N30/204 ,  H10N30/2047 ,  H10N30/80 ,  H10N35/80 ,  F04B43/08 ,  F25B2321/0212 ,  F25B2321/023 ,  F25B2321/025 ,  F25B2321/0252

摘要： An active cooling system and method for using the active cooling system are described. The active cooling system includes a cooling element having a first side and a second side. The first side of the cooling element is distal to a heat-generating structure and in communication with a fluid. The second side of the cooling element is proximal to the heat-generating structure. The cooling element is configured to direct the fluid using a vibrational motion from the first side of the cooling element to the second side such that the fluid moves in a direction that is incident on a surface of the heat-generating structure at a substantially perpendicular angle and then is deflected to move along the surface of the heat-generating structure to extract heat from the heat-generating structure.

公开(公告)号：US20240133370A1

公开(公告)日：2024-04-25

申请号：US18269110

申请日：2021-12-20

申请人： FLUIGENT

发明人： Cristian Glavana ,  Jean-Louis Viovy

IPC分类号： F04B43/04 ,  F04B11/00 ,  F04B45/047

CPC分类号： F04B43/046 ,  F04B11/0091 ,  F04B45/047

摘要： The present invention relates to an apparatus (2) for controlling pressure or flow in a fluidic system (3), the apparatus (2) comprising: a first connection device (301) comprising a pumping device (304) and a main outlet (310); a second connection device (302) comprising a flow restriction (305); a third connection device (303) comprising a valve with a modifiable aperture (306); wherein the second connection device (302) and the third connection device (303) are connected to the first connection device (301) at a position between the pumping device (304) and the main outlet (310).

公开(公告)号：US20240125314A1

公开(公告)日：2024-04-18

申请号：US18482242

申请日：2023-10-06

申请人： ProMinent GmbH

发明人： Markus SHARPE ,  Harald RAUH ,  Qinghai SHI

IPC分类号： F04B43/04 ,  F04B43/00 ,  F04B51/00

CPC分类号： F04B43/04 ,  F04B43/0081 ,  F04B51/00

摘要： A process for operating a pump, the pump having a conveying chamber for conveying a fluid, the pump having a displacement element, the displacement element delimiting the conveying chamber at least in sections, so that a change in the position or location of the displacement element causes a change in the volume of the conveying chamber, the pump having a drive, the drive having a coil through which an electric current is conductible, the coil having an ohmic resistance value RDC and an inductance Lcoil, the drive includes a pressure element and a coupling device, the pressure element and the coil being configured and arranged such that a magnetic field, generated by an electric current flowing in the coil causes a stroke movement of the pressure element along a longitudinal axis from an initial position P1 to an end position P2.

公开(公告)号：US11959472B2

公开(公告)日：2024-04-16

申请号：US16910298

申请日：2020-06-24

申请人： Murata Manufacturing Co., Ltd.

发明人： Kenjiro Okaguchi

IPC分类号： F04B45/047 ,  F04B43/00 ,  F04B43/04 ,  F04B43/09

CPC分类号： F04B45/047 ,  F04B43/0081 ,  F04B43/046 ,  F04B43/095

摘要： A pump device includes a piezoelectric pump, a piezoelectric pump, and a driving circuit. The piezoelectric pump is driven at a first frequency when singly driven. The piezoelectric pump is driven at a second frequency when singly driven. The driving circuit drives the piezoelectric pump and the piezoelectric pump at the same driving frequency.

公开(公告)号：US11933287B2

公开(公告)日：2024-03-19

申请号：US17394485

申请日：2021-08-05

申请人： TTP Ventus Ltd.

发明人： James Samuel Bumby ,  Stuart Andrew Hatfield

IPC分类号： F04B43/04 ,  B01L3/00 ,  F04B45/047 ,  F04B53/10

CPC分类号： F04B43/046 ,  B01L3/50273 ,  F04B45/047 ,  F04B53/1037 ,  B01L2400/0478

摘要： A pump for a microfluidic device is disclosed. The pump comprises an actuator and a resilient isolator which is a planar, layered structure. The resilient isolator may comprise a support layer and optionally other layers for strengthening against tensile stress imposed by bending. Alternatively or in addition, the resilient isolator may comprise a plurality of annular regions, layers of the resilient isolator being configured such that at least one of the plurality of annular regions is less resistant than another one of the plurality of annular regions to bending. The actuator may comprise a piezoelectric disc including a surface which comprises electrode regions for electrical connection with respective conductive regions of a conductive layer of the resilient isolator, and an alignment feature for rotational alignment of the piezoelectric disc to ensure the electrical connection between the electrode regions and the respective conductive regions.

公开(公告)号：US20240084793A1

公开(公告)日：2024-03-14

申请号：US18508124

申请日：2023-11-13

申请人： MINEBEA MITSUMI INC.

发明人： Yuta YOSHII ,  Chikara SEKIGUCHI ,  Shigenori INAMOTO ,  Yuki TAKAHASHI ,  Daisuke KODAMA ,  Kenta UEDA ,  Takahiko IRIE ,  Daisuke KURITA

IPC分类号： F04B49/00 ,  F04B43/04

CPC分类号： F04B49/00 ,  F04B43/043

摘要： A pump system contains a pair of pumps each of which contains a vibration actuator vibrated by electromagnetic drive and can discharge fluid due to drive of the vibration actuator. The pump system has a vibration suppression mode in which the pair of the pumps are driven so that vibration of the vibration actuators of the pair of pumps is cancelled each other and a vibration generation mode in which the pair of the pumps are driven so that the vibration of the vibration actuators of the pair of pumps is superimposed with each other.

公开(公告)号：US11920578B2

公开(公告)日：2024-03-05

申请号：US17029612

申请日：2020-09-23

申请人： Murata Manufacturing Co., Ltd.

发明人： Hiroyuki Yokoi ,  Nobuhira Tanaka ,  Daisuke Kondo

IPC分类号： F16K15/14 ,  F04B43/02 ,  F04B43/04 ,  F04B45/047 ,  F16K15/02 ,  F16K99/00

CPC分类号： F04B43/02 ,  F04B43/046 ,  F04B45/047 ,  F16K15/02 ,  F16K15/141 ,  F16K99/0057 ,  F16K2099/0094

摘要： A valve includes a first plate having a first vent hole; a second plate defining a valve chamber, which communicates with the first vent hole, between the second plate and the first plate, the second plate having a second vent hole that communicates with the valve chamber and that does not face the first vent hole; and a movable plate having a third vent hole that faces the second vent hole and disposed in the valve chamber such that the movable plate is movable between the first plate and the second plate. The second plate has an auxiliary hole that does not face the third vent hole in the movable plate, the auxiliary hole being surrounded by an edge portion that forms a first corner portion having a substantially convex rounded shape in front view of a principal surface of the second plate at a side facing the valve chamber.

公开(公告)号：US20240052822A1

公开(公告)日：2024-02-15

申请号：US18494105

申请日：2023-10-25

申请人： Murata Manufacturing Co., Ltd.

发明人： Yukiharu KODAMA

IPC分类号： F04B39/16 ,  F04B43/04 ,  B01D46/00 ,  B01D46/10

CPC分类号： F04B39/16 ,  F04B43/046 ,  B01D46/0005 ,  B01D46/10 ,  B01D2265/06 ,  B01D2265/04

摘要： A pump body includes a cover member having a through hole. A filter member is located and shaped, on an outside of the pump body closer to the cover member, so as to overlap the through hole. A plurality of adhesive members hold the filter member to the pump body so as to be able to change a distance between the cover member and at least a part, overlapping the through hole, of the filter member. The plurality of adhesive members are shaped such that a space formed between the cover member and the part, overlapping the through hole, of the filter member communicates with an opening between the cover member and at least a part of an outer edge of the filter member in a state in which the part, overlapping the through hole, of the filter member is apart from the cover member.