US20220243716A1 - Fluid circulation pump - Google Patents

Fluid circulation pump Download PDF

Info

Publication number
US20220243716A1
US20220243716A1 US17/611,022 US202017611022A US2022243716A1 US 20220243716 A1 US20220243716 A1 US 20220243716A1 US 202017611022 A US202017611022 A US 202017611022A US 2022243716 A1 US2022243716 A1 US 2022243716A1
Authority
US
United States
Prior art keywords
lip
movable part
upstream
fluid
chamber
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
US17/611,022
Other languages
English (en)
Inventor
Guy Delaisse
Erik GUILLEMIN
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
AMS R&D Sas
Original Assignee
AMS R&D Sas
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by AMS R&D Sas filed Critical AMS R&D Sas
Assigned to AMS R&D SAS reassignment AMS R&D SAS ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: DELAISSE, GUY, GUILLEMIN, Erik
Publication of US20220243716A1 publication Critical patent/US20220243716A1/en
Pending legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B43/00—Machines, pumps, or pumping installations having flexible working members
    • F04B43/08—Machines, pumps, or pumping installations having flexible working members having tubular flexible members
    • F04B43/084—Machines, pumps, or pumping installations having flexible working members having tubular flexible members the tubular member being deformed by stretching or distortion
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B19/00—Machines or pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B1/00 - F04B17/00
    • F04B19/20—Other positive-displacement pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B43/00—Machines, pumps, or pumping installations having flexible working members
    • F04B43/0009—Special features
    • F04B43/0054—Special features particularities of the flexible members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B43/00—Machines, pumps, or pumping installations having flexible working members
    • F04B43/02—Machines, pumps, or pumping installations having flexible working members having plate-like flexible members, e.g. diaphragms
    • F04B43/028—Machines, pumps, or pumping installations having flexible working members having plate-like flexible members, e.g. diaphragms with in- or outlet valve arranged in the plate-like flexible member
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B43/00—Machines, pumps, or pumping installations having flexible working members
    • F04B43/08—Machines, pumps, or pumping installations having flexible working members having tubular flexible members
    • F04B43/09—Pumps having electric drive
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/10—Valves; Arrangement of valves
    • F04B53/1037—Flap valves
    • F04B53/1047—Flap valves the valve being formed by one or more flexible elements

Definitions

  • the present invention relates to the field of fluid flow pumps.
  • Pumps are known that are provided with a chamber of volume that varies as a function of the movement of a part that is movable inside the chamber, the chamber being fitted with a checkvalve upstream from the chamber and with a checkvalve downstream from the chamber.
  • the chamber When the volume of the chamber increases, the chamber is then in the suction, so the upstream checkvalve opens and the downstream checkvalve closes, with the fluid then being sucked into the chamber.
  • the chamber When the volume of the chamber decreases, the chamber is then in compression, so the upstream checkvalve closes and the downstream checkvalve opens, with the fluid then being discharged from the chamber to a discharge outlet.
  • Such checkvalves are parts that are subject to wear and that give rise to head loss.
  • An object of the present invention is to provide a fluid flow pump that causes fluid to flow and that minimizes head loss.
  • the invention provides a fluid flow pump comprising a suction inlet, a discharge outlet, a chamber in fluid flow connection with the suction inlet and with the discharge outlet, a movable part arranged inside the chamber, and at least one motor mechanically connected to the movable part to move it inside the chamber.
  • the pump of the invention is essentially characterized in that it includes a circular first upstream lip placed closer to the suction inlet than to the discharge outlet and a circular first downstream lip placed closer to the discharge outlet than to the suction inlet, these circular first upstream and downstream lips being placed between one of the sides of said movable part and a first wall of the chamber to define a first space between the circular first upstream and downstream lips, these circular first upstream and downstream lips being such that:
  • the first and second portions of the movement of said movable part relative to the chamber are distinct from each other, i.e. the positions respectively adopted by the movable part over the first portion of the movement are all different from the positions respectively adopted by the movable part over the second portion of the movement.
  • the movable part causes the volume of the first space to vary in such a manner that the first space is:
  • the circular first upstream lip allows free passage for fluid between said first space and said suction inlet, it gives rise to limited head loss while admitting fluid into the chamber.
  • the pump of the invention can operate without such an admission checkvalve.
  • the efficiency of the pump is thus improved during its stage of admitting fluid into the chamber.
  • the pump of the invention is thus particularly effective in transferring a fluid, which fluid may be a gas or a liquid.
  • FIG. 1 a is a cross-section view of a pump 100 of the invention that includes an electric motor 46 driving a movable part 45 with reciprocating motion between first and second walls 44 a and 44 b of the chamber 44 in order to cause the pump to suck in fluid;
  • a portion of FIG. 1 a is an enlargement of the movable part 45 in which there can be seen circular first upstream and downstream lips 120 a and 121 a on a first side of the part 45 , and circular second upstream and downstream lips 120 b and 121 b on another side of the part 45 ;
  • FIG. 1 b is a detail view of the lips in a section plane in which there extends an axis of symmetry X-X of the lips, it can be seen that each of the first upstream and downstream lips presents a thickness E that is constant over a major fraction of the length of the lip, with each of these lips being chamfered at its terminal end (the chamfer increases the contact area of the lip and improves its sealing and its lifetime);
  • FIG. 2 is a view of a pump of the invention in which the movable part 45 is a tube that is radially expandable relative to an axis of symmetry X-X of the lips, FIG. 2 being observed in a section plane in which said axis of symmetry X-X of the lips extends;
  • FIG. 3 is a view of the pump of the invention as shown in FIG. 2 , while it is being put into operation under drive from the electric motor 46 ;
  • FIG. 4 is a section view of a pump similar to the pump in FIGS. 2 and 3 , but in which the lips are not carried by the walls 44 a and 44 b of the chamber 44 , but are carried by the movable part 45 , which is tubular and radially deformable about the axis of symmetry X-X;
  • FIG. 5 is a detail view of the lips and of the movable part 45 of the pump of the invention as shown in FIG. 1 a , this view showing the movable part 45 in a first portion P 1 of its movement, the pump then being in suction with a free fluid passage created by the upstream lip 120 a;
  • FIG. 6 is a detail view similar to FIG. 5 , but in which the pump is discharging, with an open fluid passage going past the downstream lip 121 a;
  • FIG. 7 is a section view of the movable part 45 in the chamber 44 , the first lips 120 a and 121 a being shown attached to a first side of the movable part 45 so as to bear against a first wall 44 a of the chamber 44 and the second lips 120 b and 121 b being shown attached to a second side of the movable part 45 so as to bear against a second wall 44 b of the chamber 44 ;
  • FIG. 8 is a section view of the second wall 44 b of the chamber 40 of the pump, and in this embodiment the second lips 120 b and 121 b are not attached to the movable part 45 as they are in FIG. 7 , but they are attached exclusively to the second wall 44 b of the chamber 44 (this embodiment is like the embodiment shown in FIG. 1 a in which the second wall 44 b carries the second lips 120 b and 121 b and in which the first wall 44 a carries the first lips 120 a and 121 a ); and
  • FIG. 9 is a perspective view of a portion of the pump of the invention in an embodiment in which the movable part is in the form of a strip and in which the first upstream and downstream lips 120 a and 121 a and the second upstream and downstream lips 120 b and 121 b are rectilinear.
  • the pump 100 of the invention includes a suction inlet 41 and a discharge outlet 42 .
  • the pump includes a motor 46 that may be located either outside the chamber 44 , as shown in FIG. 1 a , or else inside the chamber, as shown in FIGS. 2 to 4 .
  • the motor 46 is mechanically connected to the movable part in order to be able to move it inside the chamber 44 .
  • the pump 100 also has a first upstream lip 120 a that is placed closer to the suction inlet 41 than it is to the discharge outlet 42 , and a first downstream lip 121 a that is placed closer to the discharge outlet 42 that it is to the suction inlet 41 .
  • first upstream and downstream lips 120 a and 121 a are placed between one of the sides of said movable part 45 and a first wall 44 a of the chamber 44 so as to define a first space 123 a between these first upstream and downstream lips 120 a and 121 a.
  • the arrangement of the lips defining the first passage 123 a gives the pump the ability to be self-priming when dry.
  • a pump is said to be “self-priming when dry” when the pump can suck in dry air and can create sufficient suction to suck in liquid and move the liquid into the chamber in order to discharge it via a discharge outlet 42 of the pump.
  • first upstream and downstream lips 120 a and 121 a are preferably circular, with the movable part 45 then being in the shape of a disk, as shown in FIGS. 1 a , 1 b , 5 , 6 , 7 , and 8 , or else in the shape of a tube (as shown in FIGS. 2, 3, and 4 ).
  • first upstream and downstream lips 120 a and 121 a could also be rectilinear, as shown in FIG. 9 , with the movable part 45 then being in the shape of a strip (as in FIG. 9 ), which part 45 may be rigid or elastically deformable depending on the length of the strip.
  • the pump 100 is connected to a control unit UC of the pump 100 , which is adapted to control the supply of electrical power to the motor 46 of the pump 100 .
  • control unit UC is arranged to regulate the operation of the motor 46 as a function of at least one value that has previously been estimated by the control unit.
  • This at least one value that has previously been estimated by the control unit UC may be a value estimated by at least one sensor and/or probe 50 .
  • This at least one previously-estimated value may be a value for the pressure of the fluid driven by the pump, a value for the flow rate of the fluid driven by the pump, a value for the speed of movement of the motor, a value for the frequency of movement of the motor, a value representative of a movement amplitude of the movable part 5 , and/or a value representative of a position of the movable part 5 .
  • the motor 46 in this example an electric motor, and the control unit UC are powered via an electric power cable 60 .
  • the control unit UC may itself be connected to a probe 50 that is adapted to detect when a liquid level is reached relative to the pump 100 . Under such circumstances, the control unit UC is arranged to control the supply of electric power to the motor in response to the probe 50 detecting said liquid level.
  • the probe 50 may be fastened to the pump, or alternatively it may be fastened to an element other than the pump.
  • the probe 50 may be adjustable so as to adjust the detection level from which the probe detects the presence of liquid on a floor on which the pump is arranged.
  • the probe 50 may comprise at least two electrodes 51 that are spaced apart from each other so as to be able to detect when a liquid level is reached as a function of these electrodes measuring at least one electrical characteristic.
  • This electrical characteristic must vary depending on the nature of the fluid that is to be found between the electrodes.
  • the electrical characteristic measured by means of the electrodes may be an electric resistance between electrodes, an electric current between the electrodes, or an electric voltage between the electrodes.
  • control unit UC causes the electric motor 46 to operate.
  • a timeout may also be used in order to allow the pump to continue to operate after the probe detects that the fluid is absent. This serves to avoid repeated stopping and starting of the pump. This improves the lifetime of the pump.
  • the electric motor 46 is connected to the movable part 45 by a coupling mechanism 52 is such a manner that the control unit UC actuating the electric motor 46 causes the movable part 45 to perform reciprocating motion relative to the chamber in order to move a fluid (a gas or a liquid) from the suction inlet 41 to the discharge outlet 42 .
  • a fluid a gas or a liquid
  • the movable part 45 is in the shape of a disk that is hollow in its center and that is connected to the electric motor in such a manner as to be moved with rectilinear reciprocating motion in a direction perpendicular to the plane in which the disk extends.
  • the first space 123 a defined between the lips 120 a and 121 a forms an angular space extending between a first wall 44 a of the chamber 44 and a first side of the movable part 45 that faces this first wall 44 a.
  • the hollow in the center of the disk enables a pumping effect to be obtained on both sides of the movable part with only one discharge outlet facing the hollow.
  • the movable part 45 being a solid disk (without a hollow in its center), in which case the movable part 45 is capable of:
  • the movable part 45 is rigid, however it could be deformable in such a manner that actuating the electric motor 46 gives rise to a wave that propagates radially across the movable part 45 in order to move the fluid.
  • the movable part 45 may comprise an elastically deformable diaphragm so as to permit propagation of a wave supported by the diaphragm, with the diaphragm being referred to as an undulating diaphragm.
  • the diaphragm may be in the shape of a disk (the wave propagating radially relative to the disk) or in the shape of a strip (the wave propagating along the length of the strip) or, as shown in FIGS. 2 to 4 , in the shape of an elongate flexible tube that is peripherally stretchable (in which case the wave is a circular wave formed in the periphery of the tube and propagating along the length of the tube).
  • the first upstream lip 120 a (which is circular when the diaphragm is in the shape of a disk or of a tube, and which is rectilinear when the diaphragm is in the shape of a strip) and the first downstream lip 121 a (which is circular when the diaphragm is the shape of a disk or of tube, and which is rectilinear when the diaphragm is the shape of a strip) are designed to deform as a function of the motion of the movable part 45 in such a manner as to create a first space 123 a between the lips 120 a and 121 a and the wall 44 a of the chamber 44 , which first space 123 a alternates between:
  • the part 45 is moved by the motor 46 so as to alternate between moving away from the first wall 44 a and moving towards it.
  • the circular upstream lip 120 a is always spaced apart from the first wall 44 a , thereby providing a free passage between the first space 123 a and the suction inlet 41 .
  • the circular upstream lip 120 a allows fluid to pass freely between the suction inlet 41 and the space 123 a , regardless of the fluid pressure difference between the space 123 a and the suction inlet 41 .
  • downstream lip 121 a is adapted:
  • the space 123 a alternates between being in suction and open to the suction inlet 41 in order to suck in the fluid (gas or liquid) therefrom, and being in compression and open to the discharge outlet 42 in order to expel the fluid therethrough.
  • the reciprocating motion of the movable part 45 causes fluid to be sucked from the suction inlet 41 into the first space 123 a during the first portion P 1 of the motion, and then causes the fluid to be expelled from the first space 123 a to the discharge outlet 42 over the second portion P 2 of said reciprocating motion.
  • the pump in order to double this suction/expulsion effect on the fluid/liquid, and as shown in the embodiments of FIGS. 1 a , 2 , 3 , 4 , 5 , 6 , and 7 , provision can be made for the pump to include a second upstream lip 120 b and a second downstream lip 121 b that are designed to deform as a function of the motion of the movable part 45 in such a manner as to create second space 123 b between these lips 120 b and 121 b and a second wall 44 b of the chamber 44 , which second space 123 b:
  • the part 45 is movable between the first and second walls 44 a and 44 b of the chamber 44 .
  • the part 45 While it is being moved by the motor, the part 45 alternates between being moved away from and towards the second wall 44 b.
  • These second upstream and downstream lips 120 b and 121 b are preferably circular, with the movable part 45 then being in the shape of a disk, (as shown in FIGS. 1 a , 1 b , 5 , 6 , 7 , and 8 ), or else tubular (as shown in FIGS. 2, 3, and 4 ).
  • these second upstream and downstream lips 120 b and 121 b could be rectilinear, as shown in FIG. 9 , with the movable part 45 then being in the shape of a strip (as in FIG. 9 ), which part 45 may be rigid or elastically deformable along the length of the strip.
  • the second upstream lip 120 b is placed closer to the suction inlet 41 than it is to the discharge outlet 42 , and a second downstream lip 121 b is placed closer to the discharge outlet 42 that it is to the suction inlet 41 .
  • These second upstream and downstream lips 120 b and 121 b are placed between one of the sides of said movable part 45 and a second wall 44 b of the chamber 44 so as to define a second space 123 b between these second upstream and downstream lips 120 b and 121 b.
  • the second upstream lip 120 b is adapted so that over a third portion of said reciprocating motion of said movable part 45 relative to the chamber 44 , the second upstream lip 120 b allows free passage for the fluid between said second space 123 b and said suction inlet 41 .
  • this second upstream lip 120 b is of dimensions such that over the entire third portion of said reciprocating motion of said movable part 45 relative to the chamber 44 , the second upstream lip 120 b is spaced apart from the second wall 44 b.
  • this third portion of the motion corresponds to said second portion of the motion.
  • the second upstream lip 120 b is also adapted so that throughout a fourth portion of said motion of said movable part 45 relative to the chamber 44 , the second upstream lip 120 b:
  • this fourth portion of the motion corresponds to said first portion of the motion of the part 45 .
  • the second downstream lip 121 b is adapted:
  • the second space 123 b alternates between being in suction and open to the suction inlet 41 in order to suck in the fluid (gas or liquid) therefrom, and being in compression and open to the discharge outlet 42 in order to expel the fluid therethrough.
  • the second space 123 b forms an annular space extending between the second wall 44 b and the second side of the movable part 45 that is facing the second wall 44 b .
  • the second upstream and downstream lips 120 a and 121 b are circular.
  • these second upstream and downstream lips 120 b and 121 b are such that over the third portion of said reciprocating motion of said movable part 45 relative to the chamber 44 , the second downstream lip 121 b provides sealing that prevents fluid from passing from said discharge outlet 42 to said second space 123 b , with the second upstream lip 120 b then allowing free passage for fluid between said second space 123 b and said suction inlet 41 .
  • the second upstream lip 120 b is spaced apart from one of said second wall 44 b and movable part 45 in order to generate a free fluid passage, i.e. a free space between said second space 123 b and said suction inlet 41 .
  • these circular second upstream and downstream lips 120 b and 121 b are such that over the fourth portion of said reciprocating motion of said movable part 45 relative to the chamber 44 , the second upstream lip 120 b provides sealing that prevents fluid from passing from said second space 123 b to said suction inlet 41 , with the second downstream lip 121 b then being arranged:
  • the reciprocating motion of the movable part 45 causes fluid to be sucked from the suction inlet 41 into the second space 123 a and then causes the fluid to be expelled from the second space 123 b to the discharge outlet 42 .
  • one of the faces of the movable part does not have any facing lip, then that is either because that face is not used for pumping (as applies to a movable part in the form of a disk without a hollow center), or else because it is the movable part 45 that is deformable in order to establish sealing against the corresponding wall of the chamber.
  • Using only one lip on a side of the movable part serves only to oppose fluid return.
  • Using two lips on a side of the movable part 45 serves to create the space between an upstream lip and a downstream lip in order to obtain a pump presenting a self-priming effect when dry.
  • a given lip can become pressed against a support of the lip (the chamber wall or the movable part) and act as a suction cup.
  • Each at least one fluid passage 48 , 49 between a given lip and its support 124 is such that when the lip comes to pressed against its support, fluid can continue to flow between the lip and its support. This avoids the suction cup effect.
  • each projection 48 or channel 49 extends longitudinally from one end of the given lip towards a junction point between that lip and its support.
  • the projections and/or channels prefferably be formed/carried solely by the support 124 of the lip rather than by the lip itself, since the lip is then deformable in uniform manner.
  • the projections or channels are formed on the support of the lip so as to form radii centered around an axis of symmetry of the given lip.
  • said at least one fluid passage 48 , 49 formed between the given lip and its support 124 extends radially relative to a central axis of symmetry X-X of the at least one given lip.
  • each of said lips when observed in a section plane containing a central axis of symmetry (X-X) that is common to said lips, each of said lips has a specific section extending over a major portion of the length of the given lip, this specific section of the lip being of constant thickness E in the section plane.
  • the specific section of constant thickness E of a given lip extends over a major portion of the length of the given lip when seen in said section plane containing the axes of symmetry X-X of the lip.
  • the thickness of a specific section of a given lip is considered to be constant providing the minimum thickness of the lip as measured in the specific section is greater than 70% of the maximum thickness of the lip measured in the specific section.
  • the constant specific thicknesses E of the upstream lips 120 a and 120 b are preferably identical to each other.
  • the constant specific thicknesses E of the downstream lips 121 a and 121 b are preferably identical to each other.
  • the constant specific thicknesses E of the upstream lips 120 a and 120 b are preferably greater than the constant specific thicknesses E of the downstream lips 121 a and 121 b.
  • the length of a given lip is the distance measured between an attachment point where the given lip is attached to its support 124 and an end point of the given lip, these attachment and end points being observed in the section plane containing the central axis of symmetry X-X.
  • each of the lips has a chamfered end, the chamfer constituting a sealing surface for alternately pressing to provide sealing and being spaced apart to allow the fluid to pass.
  • the chamfered end increases the sealing surface area of the lip and improves its strength (even if the chamfered portion should present a damaged zone, it would continue to be capable of providing sealing selectively all around the damaged zone).
  • said circular first upstream lip 120 a presents a conical inside surface facing towards a central axis of symmetry X-X of the circular first upstream lip 120 a , the conical inside surface extending between a circular base of the circular first upstream lip 120 a and a circular end of the circular first upstream lip 120 a.
  • the conical inside surface of a given lip that extends between a circular base of the given lip and a circular end of the given lip serves to minimize the inside surface area of the lip that is exposed to the fluid under pressure.
  • said circular second upstream lip 120 b also to present a conical inside surface facing towards a central axis of symmetry X-X of the circular second upstream lip 120 b .
  • This conical inside surface of the circular second upstream lip 120 b extends between a circular base of the upstream second circular lip 120 b and a circular end of the circular second upstream lip 120 b.
  • each circular downstream lip 121 a , 121 b it is preferable for each circular downstream lip 121 a , 121 b to present a conical inside surface facing towards a central axis of symmetry X-X of the circular downstream lip 121 a , 121 b.
  • This conical inside surface of the circular downstream lip 121 a , 121 b extends between a circular base of the circular downstream lip 121 a , 121 b and a circular end of the circular downstream lip 121 a , 121 b.
  • each conical inside surface of any given one of the circular lips 120 a , 121 a , 120 b , or 121 b presents a cone angle that is less than or equal to 40° relative to a plane in which the circular base of the given circular lip extends.
  • Having a cone angle that is less than or equal to 40° serves, during the movement of the movable part 45 relative to the wall of the chamber, to maximize radial deformation of the lip while minimizing its axial deformation along the axis X-X.
  • the force from the lip opposing movement of the movable part is minimized and wear of the lip is reduced.
  • each of said lips 120 a , 120 b , 121 a , and 121 b is made of a material that presents a Young's modulus lying in the range 1 mega pascal (MPa) to 220 MPa.
  • the lip presents a compromise that accommodates the bending needed for the movable part 45 to move, while also limiting its radial deformation under the effect of the fluid pressure.
  • the circular first upstream and downstream lips 120 a and 121 a are carried by a base that is common to those lips, which base is releasably assembled on the first wall 44 a of the chamber 44 .
  • the circular first upstream and downstream lips 120 b and 121 b are carried by a base that is common to those lips, which base is releasably assembled on the second wall 44 b of the chamber 44 .
  • the lips can be replaced together by removing the bases that carry them.
  • the first upstream and downstream lips 120 a and 121 a may be carried by said movable part 45 .
  • a common base for those lips may be releasably assembled on the movable part 45 .
  • This embodiment enables the lips 120 a and 121 a to be replaced independently of the movable part 45 .
  • the reciprocating motion of the movable part 45 may be axial motion along a central axis of symmetry X-X of the movable part 45 , which is in the shape of a body of revolution.
  • the reciprocating motion of the movable part ( 45 ) may be radial motion about a central axis of symmetry X-X of the movable part 45 , which is in the shape of a body of revolution.
  • the motor 46 may be located inside the chamber, as in FIGS. 2, 3, and 4 , or it may be located outside the chamber, as in FIGS. 1 a , 5 , and 6 .

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Details Of Reciprocating Pumps (AREA)
  • Rotary Pumps (AREA)
  • Details And Applications Of Rotary Liquid Pumps (AREA)
US17/611,022 2019-05-14 2020-05-13 Fluid circulation pump Pending US20220243716A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR1905029 2019-05-14
FR1905029A FR3096094B1 (fr) 2019-05-14 2019-05-14 Pompe de circulation de fluide.
PCT/EP2020/063388 WO2020229568A1 (fr) 2019-05-14 2020-05-13 Pompe de circulation de fluide

Publications (1)

Publication Number Publication Date
US20220243716A1 true US20220243716A1 (en) 2022-08-04

Family

ID=67514945

Family Applications (1)

Application Number Title Priority Date Filing Date
US17/611,022 Pending US20220243716A1 (en) 2019-05-14 2020-05-13 Fluid circulation pump

Country Status (5)

Country Link
US (1) US20220243716A1 (fr)
EP (1) EP3969754B1 (fr)
CN (1) CN113853481B (fr)
FR (1) FR3096094B1 (fr)
WO (1) WO2020229568A1 (fr)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3881846A (en) * 1973-08-06 1975-05-06 Outboard Marine Corp Fluid pump with resilient pumping membrane
FR2744769B1 (fr) * 1996-02-12 1999-02-12 Drevet Jean Baptiste Circulateur de fluide a membrane vibrante
EP2378121A1 (fr) * 2010-04-16 2011-10-19 Veinux ApS Élément de pompe pour pompe à tube
IT201600072149A1 (it) * 2016-07-11 2018-01-11 Leuco Spa Pompa per erogare un liquido.

Also Published As

Publication number Publication date
EP3969754B1 (fr) 2024-05-15
WO2020229568A1 (fr) 2020-11-19
FR3096094B1 (fr) 2022-11-25
CN113853481B (zh) 2023-08-22
CN113853481A (zh) 2021-12-28
EP3969754A1 (fr) 2022-03-23
FR3096094A1 (fr) 2020-11-20

Similar Documents

Publication Publication Date Title
US9482216B2 (en) Multiple segmented peristaltic pump and cassette
JP4068186B2 (ja) ロータリポンプ
KR100852450B1 (ko) 다이어프램 펌프
EP1369585A3 (fr) Pompe
EP1369587A3 (fr) Clapet de pompe
JPS642793B2 (fr)
US20220243716A1 (en) Fluid circulation pump
KR102674580B1 (ko) 유체 펌프 및 관련 시스템 및 방법
CN111183286B (zh) 旋转隔膜正排量泵
CN114364878B (zh) 用于从地面抽吸液体的装置
CN114796848A (zh) 一种线性驱动结构、冲洗装置及心室辅助系统
JP6478002B1 (ja) 圧力制御装置、および、圧力利用装置
WO2019016521A1 (fr) Pompe volumétrique à diaphragme rotatif
EP3655655B1 (fr) Pompe à déplacement positif à diaphragme rotatif
EP3655653B1 (fr) Pompe à déplacement positif à diaphragme rotatif
US12012949B2 (en) Diaphragm pump
CN114352505A (zh) 隔膜泵
JPH0814163A (ja) 流量調整機能付きベローズポンプ
EP3655656A1 (fr) Pompe volumétrique rotative à membrane
CN104100543A (zh) 一种双振子压电驱动式风机

Legal Events

Date Code Title Description
AS Assignment

Owner name: AMS R&D SAS, FRANCE

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:DELAISSE, GUY;GUILLEMIN, ERIK;REEL/FRAME:058215/0317

Effective date: 20211108

STPP Information on status: patent application and granting procedure in general

Free format text: DOCKETED NEW CASE - READY FOR EXAMINATION

STPP Information on status: patent application and granting procedure in general

Free format text: NON FINAL ACTION MAILED