WO2015110608A1 - Pompe à tubulure intégrée - Google Patents

Pompe à tubulure intégrée Download PDF

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Publication number
WO2015110608A1
WO2015110608A1 PCT/EP2015/051414 EP2015051414W WO2015110608A1 WO 2015110608 A1 WO2015110608 A1 WO 2015110608A1 EP 2015051414 W EP2015051414 W EP 2015051414W WO 2015110608 A1 WO2015110608 A1 WO 2015110608A1
Authority
WO
WIPO (PCT)
Prior art keywords
fluid
orifice
pump body
intake
pump
Prior art date
Application number
PCT/EP2015/051414
Other languages
English (en)
Inventor
Roland Lucotte
Julien BENOIT
Jean-Baptiste Drevet
Original Assignee
Saint-Gobain Performance Plastics France
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 Saint-Gobain Performance Plastics France filed Critical Saint-Gobain Performance Plastics France
Publication of WO2015110608A1 publication Critical patent/WO2015110608A1/fr

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D7/00—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts
    • F04D7/02—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type
    • F04D7/04—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type the fluids being viscous or non-homogenous
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
    • F04D15/0005—Control, e.g. regulation, of pumps, pumping installations or systems by using valves
    • F04D15/0016—Control, e.g. regulation, of pumps, pumping installations or systems by using valves mixing-reversing- or deviation valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/426—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for liquid pumps
    • F04D29/4293—Details of fluid inlet or outlet
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/44—Fluid-guiding means, e.g. diffusers
    • F04D29/46—Fluid-guiding means, e.g. diffusers adjustable
    • F04D29/50—Fluid-guiding means, e.g. diffusers adjustable for reversing fluid flow
    • F04D29/506—Fluid-guiding means, e.g. diffusers adjustable for reversing fluid flow especially adapted for liquid pumps

Definitions

  • the present invention relates to an adjustable pump for displacing fluids, which is particularly well suited for mixing at least two fluids having different properties, such as a liquid and a powder.
  • the invention is more particularly intended to overcome, by proposing a pump which provides effective mixing of fluids, particularly for mixing at least two fluids which have different properties, such as a liquid and a powder or two immiscible liquids.
  • Pumps in accordance with embodiments described herein can also make it possible to obtain different mixing modes and perform functions other than mixing, such as the filling or draining of the container used for the mixing.
  • One subject of the invention is an adjustable pump comprising a pump body and a fluid displacement member, the pump body defining at least one fluid intake orifice and at least one fluid delivery orifice, characterized in that the pump body defines at least one first intake orifice for intake of fluid into the pump body and is able to control the opening of at least one second intake orifice for intake of fluid into the pump body and/or to reverse the flow of fluid between the at least one fluid intake orifice and the at least one fluid delivery orifice.
  • An embodiment of the invention thus proposes a pump with an in-built manifold, in as much as the pump acts not only to displace fluids but also to finely control the circulation of these fluids between selectable intake orifices and delivery orifices.
  • the structure of the pump is designed to facilitate sterile use and limit the risks of contamination.
  • a fluid is a deformable medium capable of being mixed, such as a liquid, a gas, a gel, a paste, a powder, a suspension, a dispersion, an emulsion, or a mixture thereof.
  • An adjustable pump according to certain embodiments of the invention can be used in particular for mixing a powder with a liquid, or two liquids with low miscibility, preparing an emulsion, preparing a cell growth solution or the like, or mixing a suspension.
  • the pump body has a main axis and comprises:
  • a fixed part which defines a fluid circulation space, in which the fluid displacement member is housed, a fluid inlet orifice for letting fluid into the circulation space, and a fluid outlet orifice for letting fluid out of the circulation space,
  • the movable part which is capable of translational movement in the direction of the main axis and/or of rotational movement about the main axis with respect to the fixed part, the movable part defining the at least one first intake orifice for intake of fluid into the pump body,
  • the pump body being able, through a movement of the at least one movable part with respect to the fixed part, in translation in the direction of the main axis and/or in rotation about the main axis, to control the opening of the at least one second intake orifice for intake of fluid into the pump body and/or to reverse the flow of fluid between the at least one fluid intake orifice and the at least one fluid delivery orifice.
  • the fixed part of the pump body defines a drainage orifice for draining fluid out of the pump body.
  • the at least one first intake orifice is a central orifice of the pump body, whereas the at least one delivery orifice is a peripheral orifice of the pump body.
  • Such an arrangement may promote circulation of fluid at the periphery of a container to which the pump is connected, thus providing good fluid circulation throughout the entire volume of the container, and particularly along the side walls of the container to prevent particles from stagnating on these walls, while at the same time avoiding the appearance of dead zones in the container, i.e. of zones in which the fluid stagnates and in which particles are liable to accumulate.
  • the pump comprises at least one tube designed to collaborate with the at least one first intake orifice, this tube being movable with respect to the pump body between an opening position in which the first intake orifice is open and an off position in which the first intake orifice is shut off.
  • the tube may thus be used to convey fluid into the pump body when it is in the opening position in which the first intake orifice is open and block the passage of fluid through the first intake orifice when it is in the shutting- off position.
  • the tube is connected to a sterile connector and allows a fluid to be transferred in a sterile manner from a first container in which the fluid is packaged to a second container in which the fluid is mixed, where the interior volume of the second container is connected to the intake and delivery orifices of the pump body.
  • a movable part of the pump body is a flow reversal part capable of rotating about the main axis with respect to the fixed part, the flow reversal part being capable of rotating about the main axis between a direct-flow position, in which it causes fluid to circulate through the pump body from the at least one intake orifice towards the at least one delivery orifice, and a reverse-flow position, in which it causes fluid to circulate through the pump body from the at least one delivery orifice towards the at least one intake orifice.
  • a movable part of the pump body is a slide, the pump body comprising a base formed at least in part by the fixed part, the slide and the base being adapted to define between them the second intake orifice, the slide being capable of translational movement with respect to the base in the direction of the main axis between a shutting-off position in which the second intake orifice is shut off and an opening position in which the second intake orifice is open.
  • the at least one first intake orifice may be defined by the slide.
  • the at least one first intake orifice may be defined by the flow reversal part.
  • the base of the pump body defines a drainage orifice for draining fluid out of the pump body
  • the slide defines a shut-off element for shutting off the drainage orifice and a shut-off element for shutting off an access orifice that provides access to the circulation space, the slide being capable of translational movement with respect to the base between three successive positions in the direction of the main axis, namely:
  • the base comprises the fixed part and a flow reversal part which is capable of rotating about the main axis with respect to the fixed part, the flow reversal part being capable of rotating about the main axis between a direct-flow position, in which it causes fluid to circulate through the pump body from the at least one intake orifice towards the at least one delivery orifice, and a reverse-flow position, in which it causes fluid to circulate through the pump body from the at least one delivery orifice towards the at least one intake orifice.
  • the pump comprises an element for causing the slide to rotate as one with the flow reversal part.
  • the fluid displacement member is a turbine capable of rotating about the main axis.
  • each inlet orifice of the circulation space can open into the circulation space near a central region of the turbine, whereas each outlet orifice of the circulation space can open into the circulation space near the periphery of the turbine.
  • the fluid displacement member is a deformable membrane in the shape of a disc, which is held in the circulation space substantially parallel to the direction of circulation of fluid between the inlet orifice and the outlet orifice of the circulation space, while being substantially centered on the main axis.
  • the pump has a coupling element adapted to couple the membrane and an actuating device adapted to generate alternately, at one end of the membrane situated near the inlet orifice of the circulation space, an excitation force substantially perpendicular to the direction of circulation.
  • the first end of the membrane situated on the side of the inlet orifice, to which the excitation force is applied is a central edge of the membrane
  • the second end of the membrane situated on the side of the outlet orifice is an external peripheral edge of the membrane.
  • the first end of the membrane situated on the side of the inlet orifice, to which the excitation force is applied is an external peripheral edge of the membrane
  • the second end of the membrane situated on the side of the outlet orifice is a central edge of the membrane.
  • This arrangement may correspond to a centripetal configuration of the pump, in which the fluid circulates from the periphery towards the centre of the membrane.
  • this centripetal configuration generates aconcentration of energy from the periphery towards the centre of the circulation space that makes it possible to obtain pressure gradients compatible with those required in industrial applications.
  • This centripetal configuration may also make it possible to operate with smaller excitation amplitudes at the external peripheral edge of the membrane, thus limiting the degradation of fragile fluids.
  • each inlet orifice of the circulation space may open into the circulation space near the periphery of the membrane, whereas each outlet orifice of the circulation space may open into the circulation space near a central region of the membrane.
  • Each delivery orifice may be a peripheral orifice of the pump body whereas each outlet orifice of the circulation space may be a central orifice of the pump body.
  • the pump body may include a portion for redirecting fluid emanating from each outlet orifice towards at least one delivery orifice. This arrangement may encourage fluid to circulate at the periphery of a container to which the pump is connected, the fluid thus circulating along the walls of the container and preventing particles from adhering to the walls.
  • the membrane in the case of a membrane pump, may include at least one peripheral orifice and at least one central orifice.
  • the fluid can pass on either side of the membrane in the circulation space, thus making it possible to exploit the entire volume of the pump body for transferring the mixing energy.
  • the pump may be formed entirely from a polymer material.
  • the polymer material may befibre reinforced, particularly those parts of the pump that perform a mechanical function or are mechanically stressed.
  • the pump body may be made of polypropylene or of polycarbonate;
  • the turbine may be made of polyolefm, of polyphenylene sulphide (PPS) or of a fluorinated polymer such as polytetrafluoroethylene (PTFE), with a drive shaft made of a rigid polymer, for example glass fibre reinforced polyphenylene sulphide (PPS).
  • PPS polyphenylene sulphide
  • PTFE polytetrafluoroethylene
  • the pump body may be made of polypropylene or of polycarbonate;
  • the membrane support may be made of polyphenylene sulphide (PPS), of polypropylene or of glass fibre reinforced polycarbonate;
  • the membrane may be made of a silicone elastomer, of polyurethane or of rubber.
  • the intake and delivery orifices of the pump body can open into a container intended to receive at least one fluid, so that the fluid circulates directly and without a duct between the container and the pump body.
  • a container intended to receive at least one fluid, so that the fluid circulates directly and without a duct between the container and the pump body.
  • the intake and delivery orifices of the pump body may be connected to different containers intended to receive different fluids that are to be mixed, each fluid then being able to circulate directly between the container and the pump body or via a pipe.
  • a pump according to an embodiment of the invention may allow the mixing of a powder contained in a first container with a liquid contained in a second container.
  • Another subject of the invention is a mixing assembly comprising a container and an adjustable pump as described hereinabove.
  • a mixing assembly may be sterile and disposable, whereas the device for actuating the displacement member of the pump is durable and can be coupled in succession to several mixing assemblies.
  • the container is secured to the pump body.
  • the securing together of the container and the pump body can be obtained by any suitable method of permanent or semi-permanent connection, such as adhesive bonding, overmoulding, or welding.
  • the container may be removably secured to the pump body, for example by screwing a threaded part of the pump body into a complementary tapped part that passes through a wall of the container.
  • the container and the pump body may be arranged relative to one another in such a way that the drainage orifice defined by the fixed part of the pump body opens to the outside of the container. It may thus be possible to empty the container via the pump body. That in particular may allow the container to be emptied completely.
  • the container comprises a flexible material.
  • the container can be flattened onto itself when empty of contents, making it possible to limit the space occupied by the mixing assembly comprising the pump and the container when it is being transported or when it is not in use.
  • the container may comprise a combination of a rigid container and of a flexible container, where the rigid container may support the flexible container.
  • the mixing assembly comprises at least one filling tube designed to collaborate with the at least one first intake orifice of the pump body.
  • Figure 1 is a perspective view with partial cut away of an adjustable rotary pump according to a first embodiment of the invention, the pump being in a first direct-flow configuration;
  • Figure 2 is a cross section on II-II of Figure 1 ;
  • Figure 3 is a cross section of an assembly comprising the pump of Figure 1 and a corresponding actuating device;
  • Figure 4 is a perspective view of the fixed lower plate of the pump of Figures 1 to 3;
  • Figure 5 is a perspective view of the flow reversal part of the pump of Figures 1 to 3;
  • Figure 6 is a perspective view of the slide of the pump of Figures 1 to 3;
  • Figure 7 is a perspective view of the turbine of the pump of Figures 1 to 3;
  • Figure 8 is a cross section similar to Figure 2, the pump being in a first reverse-flow configuration
  • Figure 9 is a cross section similar to Figure 2, the pump being in a second direct-flow configuration
  • Figure 10 is a cross section similar to Figure 2, the pump being in a second reverse- flow configuration
  • Figure 11 is a cross section similar to Figure 2, the pump being in a third direct-flow configuration
  • Figure 12 is a cross section similar to Figure 2, the pump being in a third reverse-flow configuration
  • Figure 13 is a view similar to Figure 1 for an adjustable membrane pump according to a second embodiment of the invention, the pump being in a first direct-flow configuration;
  • Figure 14 is a cross section on XIV-XIV of Figure 13;
  • Figure 15 is a cross section of an assembly comprising the pump of Figure 13 and a corresponding actuating device;
  • Figure 16 is a perspective view of the lower plate of the pump of Figures 13 to 15;
  • Figure 17 is a perspective view of the upper plate of the pump of Figures 13 to 15;
  • Figure 18 is a perspective view of the flow reversal part of the pump of Figures 13 to
  • Figure 19 is a perspective view of the slide of the pump of Figures 13 to 15;
  • Figure 20 is a perspective view of the membrane of the pump of Figures 13 to 15;
  • Figure 21 is a cross section similar to Figure 14, the pump being in a first reverse- flow configuration;
  • Figure 22 is a cross section similar to Figure 14, the pump being in a second direct- flow configuration
  • Figure 23 is a cross section similar to Figure 14, the pump being in a second reverse- flow configuration
  • Figure 24 is a cross section similar to Figure 14, the pump being in a third direct-flow configuration.
  • Figure 25 is a cross section similar to Figure 14, the pump being in a third reverse- flow configuration.
  • the adjustable pump 1 is a rotary pump comprising a pump body 4 centred on an axis X and a turbine 6 housed in the pump body.
  • the pump body 4 may be secured to a bag 2 made of a flexible polymer material.
  • the bag 2 is for example constructed on the basis of a multilayer polymer comprising the superposition of a layer of nylon, which gives the bag its mechanical strength properties, a layer of polyethylene, which forms a moisture barrier, and a layer of polyvinyl alcohol PVOH, which forms a barrier against gases such as dioxygen and carbon dioxide.
  • the bag 2 may comprise at least one filling orifice, not depicted, for filling the bag.
  • the filling orifice may be sterile.
  • the bag 2 may also comprise an opening 27 for receiving the pump body 4.
  • the at least one filling orifice may be provided in an upper or lateral wall of the bag 2, whereas the opening 27 for receiving the pump body 4 may be provided near a bottom wall 21 of the bag.
  • the capacity of the bag 2 may be suited to the desired application and may have a capacity in the range of between 0.5 L and 5000 L, such as in a range of between 10 L and 5000 L.
  • the mixing assembly comprising the bag 2 and the pump 1 may be sterile and single use.
  • the pump body 4 may define intake orifices 10, 91 for admitting fluid into the pump body and delivery orifices 58 for delivering fluid from the pump body.
  • the intake orifices 91 and delivery orifices 58 of the pump body may open to the inside of the bag 2 so that a fluid present in the bag 2 can circulate directly and without a duct between the bag and the pump body.
  • the pump body 4 may comprise a lower plate 7, which in its interior volume defines a disc-shaped fluid circulation space 40 in which the turbine 6 intended to propel the fluid is housed.
  • the lower plate 7 comprises a bottom 70, which is closed by a wall 79, the bottom 70 and the wall 79 between them delimiting the circulation space 40.
  • the lower plate 7 may also comprise a central ring 75 projecting from the wall 79.
  • the bottom 70 is provided with a central orifice 72 which is for draining fluid out of the pump body 4 and from which a central bore of the lower plate extends and emerges at the upper end of the central ring 75 via a central orifice 73.
  • the drainage orifice 72 opens to the outside of the bag 2 so as to allow the bag 2 to be drained.
  • the central ring 75 may include a plurality of orifices 71 which may permit fluid into the circulation space 40.
  • the wall 79 of the lower plate 7 may include, near the junction between the wall 79 and the central ring 75, a plurality of peripheral orifices 74 which permit fluid out of the circulation space 40.
  • the inlet orifices 71 alternate angularly with the outlet orifices 74 in a circumferential direction of the lower plate 7.
  • the lower plate 7 has four inlet orifices 71 and four outlet orifices 74.
  • the pump body 4 may include a flow reversal part 5 received in abutment against the wall 79 of the lower plate 7. More specifically, the lower plate 7 can have a peripheral border 77 which with the wall 79 defining a housing 78 for accommodating a bottom wall 50 of the flow reversal part 5. When received in the housing 78, the flow reversal part 5 may be driven in rotation with respect to the lower plate 7 about the central axis X.
  • the flow reversal part 5 may include a ring 55 projecting from the bottom wall 50.
  • the bottom wall 50 and the ring 55 may have a central bore 53 passing through them.
  • the bottom wall 50 can include a plurality of peripheral orifices 52 and 54 situated near the junction between the wall 50 and the ring 55, the orifices 52 alternating angularly with the orifices 54 in a circumferential direction of the flow reversal part 5.
  • the orifices 54 may be aligned with the outlet orifices 74 of the lower plate 7.
  • the orifices 52 which may be aligned with the outlet orifices 74 of the lower plate 7.
  • the ring 55 of the flow reversal part 5 can include on its periphery, directly above the orifices 54, a plurality of orifices which are the delivery orifices 58 that deliver fluid from the pump body.
  • Each delivery orifice 58 may be connected to the central bore 53 by a canal 56. Alternating with the canals 56 on the periphery of the central bore 53 may be defined a plurality of transfer orifices 51.
  • the transfer orifices 51 are each situated directly above an orifice 52 and allow fluid to be transferred to the inlet orifices 71 of the lower plate 7 when the pump 1 is in a direct-flow configuration.
  • the flow reversal part 5 comprises four transfer orifices 51 and four orifices 52, alternating angularly with four orifices 54, four canals 56 and four delivery orifices 58.
  • the pump body 4 can include a slide 9, and an upper wall 90 adapted to close off the upper end of the ring 55 of the flow reversal part 5.
  • the slide 9 includes a central collar 94, which projects on each side of the upper wall 90.
  • the collar 94 may be open at its upper end situated on the same side as a face 90A of the wall 90, and closed off by a disc 93 on the same side as the face 90B of the wall 90 which is the opposite face to the face 90A.
  • This disc 93 is configured to close off the central orifice 73 of the lower plate 7.
  • the collar 94 at its periphery may include a plurality of orifices 91 arranged between the disc 93 and the upper wall 90, which are first fluid intake orifices for admitting fluid into the pump body.
  • the collar 94 is able, via its open upper end, to accept one end 19A of a tube 19 for conveying fluid into the pump body 4 and the bag 2.
  • the end 19A of the tube 19 has crenelations 19C that allow the intake orifices 91 to be opened or closed off selectively when the tube is pushed as far as it will go into the collar 94, with the end 19A pressing against the disc 93.
  • the slide 9 may include a central rod 95 projecting from the disc 93, which bears in succession, at increasing distance along the rod 95 away from the upper wall 90, a disc 97 situated a distance away from the disc 93 and configured to slide in a fluidtight manner in the central bore of the lower plate 7, then a disc 92 situated a distance away from the disc 97 and configured to close off the drainage orifice 72.
  • the rod 95 can include, some distance from the disc 92, a threaded end piece 98 intended for connection with a coupling, not depicted, that can be adjusted between a closed configuration of closing off the drainage orifice 72 and an open configuration for draining fluid through the drainage orifice 72.
  • the rod 95 includes elongate bars of transverse dimensions smaller than the elements they connect, so as to allow fluid to circulate when the pump is in the assembled state.
  • the slide 9 When the pump 1 is in the assembled state as illustrated in Figure 1 , the slide 9 may be received by the flow reversal part 5 and the lower plate 7 such that the upper wall 90 closes the upper end of the ring 55 and the rod 95 passes through the central bore of the lower plate 7. The slide 9 may then be translationally driven in the direction of the central axis X, with respect to the flow reversal part 5 and to the lower plate 7, in such a way as to free up a space 10 between the periphery of the upper wall 90 and the upper end of the ring 55. This space 10 may be a second fluid intake orifice for admitting fluid into the pump body.
  • the slide 9 may be capable of translational movement with respect to the base formed by the flow reversal part 5 and the lower plate 7, between three successive positions in the direction of the central axis X, these being:
  • the flow reversal part 5 and the slide 9 may also include one or more elements that join them together for rotating as one about the central axis X, these taking the form of peripheral crenelations 99 of the upper wall 90 of the slide which are able to collaborate with complementary notches 59 provided in the periphery of the upper end of the ring 55.
  • the flow reversal part 5 and the slide 9 may be driven simultaneously in rotation about the central axis X with respect to the lower plate 7, notably through action on the rod 95 of the slide which projects out of the lower plate 7 through the drainage orifice 72, as illustrated by the arrow R in Figure 1.
  • the parts 5, 7 and 9 are made of a polymer material, for example of polypropylene. These parts 5, 7 and 9 may be obtained by moulding, such as for example by injection moulding.
  • the bag 2 and the pump body 4 may be assembled by slipping the ring 55 of the flow reversal part 5 into the opening 27 of the bag so that it projects into the interior volume of the bag, and by joining the border 77 of the lower plate to the bottom wall 21 of the bag around the opening 27 in a fluidtight manner.
  • the border 77 and the bottom wall 21 of the bag can be joined together by any suitable method, such as by adhesive bonding, overmoulding or welding.
  • the fluid may circulate in the circulation space 40 in a centrifugal radial direction Ai from the inlet orifices 71 towards the peripheral outlet orifices 74.
  • the turbine 6, housed in the circulation space 40 may be in the form of a disc.
  • the turbine 6 can include a support plate 60 in which magnets 62 are housed, and radial blades 61 which are formed so that they project relative to an upper face of the plate 60 alternating angularly with the magnets 62 in a circumferential direction of the turbine.
  • the turbine can also include a central bore 64 through which the rod 95 of the slide 9 is intended to pass.
  • the bottom 70 of the lower plate can be positioned in the housing of an actuating device 20 which, in this embodiment, is an electromagnetic actuator.
  • the electromagnetic assembly can include a multipole rotor, which is the rotary part, and a multipole stator, which is the static part.
  • the rotor is the support plate 60 of the turbine 6, in which plate the magnets 62 are housed, so as to form a multipole magnet on its periphery with a radial orientation of the magnetization.
  • the rotor 60 is incorporated into the pump body 4, allowing the system to stay sealed.
  • the stator 20, which is axisymmetric overall, is likewise a multipole stator and during the actuating phase is arranged around the rotor.
  • the stator 20 is an assembly of coils and armatures.
  • the cyclic supplying of current to the coils is performed by an electronic device, so as to generate a rotary magnetic field and drive the multipole magnet of the rotor in a synchronous manner, causing the turbine 6 to be rotated about the central axis X.
  • the turbine 6 not to be provided with magnets 62 and to be driven in rotation about the central axis X using a shaft that passes to outside the pump body and is rotated by an external motor.
  • the pump 1 is able to adopt six different configurations, visible in Figures 2 and 8 to 12, the transition from one configuration to another possibly being effected simply by imparting a translational and/or rotational movement to the slide 9, by an action applied to the end of the rod 95 which projects out of the lower plate 7, near the end piece 98.
  • the pump 1 allows the pump body 4 and the bag 2 to be filled with at least one fluid arriving through the tube 19, as illustrated by the arrow Fi in Figure 2.
  • the slide 9 is in its first position, in which it closes off both the drainage orifice 72, via the disc 92, and the second intake orifice 10, by contact between the periphery of the upper wall 90 and the upper end of the ring 55.
  • the fluid therefore passes from the tube 19 into the interior volume of the pump body 4 through the first intake orifices 91 , then into the circulation space 40 through the transfer orifices 51 of the part 5 which are aligned with the inlet orifices 71 of the lower plate 7.
  • the fluid In the circulation space 40, the fluid is entrained by the turbine towards the outlet orifices 74 of the lower plate 7, which are aligned with the orifices 54 of the part 5. The fluid then passes into the canals 56 and leaves the pump body 4 through the delivery orifices 58, to enter the bag 2.
  • the pump 1 allows the pump body 4 and the bag 2 to be emptied through the tube 19, as illustrated by the arrow FIR in Figure 8.
  • the slide 9 is still in its first position but has been shifted, as one with the flow reversal part 5, via the crenelations 99 and notches 59, by rotation about the axis X with respect to the lower plate 7, by action on the rod 95 near the end piece 98 as illustrated by the arrow R in Figure 1 so as to bring the orifices 52 of the flow reversal part 5 into alignment with the outlet orifices 74 of the lower plate 7.
  • fluid circulates from the delivery orifices 58 towards the first intake orifices 91. More specifically, the fluid passes from the bag 2 into the interior volume of the pump body 4 through the delivery orifices 58, then into the circulation space 40 along the canals 56 which are aligned with the inlet orifices 71 of the lower plate 7, this being possible because the orifices 54 are closed off by the wall 79 of the lower plate 7.
  • the fluid is entrained by the turbine towards the outlet orifices 74 of the lower plate 7 which this time are aligned with the orifices 52 of the part 5.
  • the fluid then enters the tube 19 through the first intake orifices 91, the transfer orifices 51 in this configuration being blocked off by the periphery of the ring 75 of the lower plate 7.
  • the pump 1 allows two fluids A and B to be mixed, fluid A being present in the bag 2 and fluid B being introduced into the pump body 4 and the bag 2 through the tube 19, as illustrated by the arrows F A and F B in Figure 9.
  • the slide 9 has been shifted translationally in the direction of the axis X in the sense of moving further away from the base formed by the lower plate 7 and the flow reversal part 5, by action on the rod 95 near the end piece 98 as illustrated by the arrow Ti in Figure 1, until it reaches its second position.
  • the slide 9 closes off the drainage orifice 72, via the disc 92, and opens the second intake orifice 10.
  • the fluid A present in the bag 2 then enters the interior volume of the pump body through the second intake orifice 10, and then enters the circulation space 40 through the transfer orifices 51 which are aligned with the inlet orifices 71.
  • the fluid B passes from the tube 19 into the interior volume of the pump body through the first intake orifices 91, then into the circulation space 40 through the transfer orifices 51 which are aligned with the inlet orifices 71.
  • the two fluids A and B are mixed and entrained by the turbine towards the outlet orifices 74 which are aligned with the orifices 54.
  • the mixture of fluids A and B then enters the canals 56 and leaves the pump body 4 through the delivery orifices 58, to enter the bag 2.
  • This second direct-flow configuration may be particularly advantageous for mixing fluids with low miscibility, such as a liquid A and a powder B, a liquid A and a gas B, or even two immiscible liquids A and B. This is because fluid B is integrated into the pump body directly within the region of greatest turbulence, encouraging it to mix with fluid A.
  • the pump 1 allows high flow rate mixing of at least one fluid present in the bag 2, as illustrated by the arrow F 2R in Figure 10.
  • the slide 9 is still in its second position but has been shifted, as one with the flow reversal part 5, via the crenelations 99 and notches 59, by rotation about the axis X with respect to the lower plate 7, by action on the rod 95 near the end piece 98 so as to bring the orifices 52 of the flow reversal part 5 into alignment with the outlet orifices 74 of the lower plate 7.
  • the fluid passes from the bag 2 into the interior volume of the pump body 4 through the delivery orifices 58, then into the circulation space 40 through the canals 56 which are aligned with the inlet orifices 71.
  • the fluid is entrained by the turbine towards the outlet orifices 74 which are aligned with the orifices 52 and then enters the bag 2 through the second intake orifice 10, the first intake orifices 91 being closed off by the crenelated end 19A of the tube 19.
  • This second reverse-flow configuration may be particularly advantageous for mixing suspensions comprising high-density particles.
  • the pump 1 allows the pump body 4 and the bag 2 to be emptied through the drainage orifice, as illustrated by the arrows F 3 and F 3R in Figures 11 and 12.
  • the fluid present in the bag 2 then passes into the interior volume of the pump body through the second intake orifice 10, then into the circulation space 40 through the orifices 54 which are aligned with the outlet orifices 74, and finally into the central bore of the lower plate 7 and towards the outside of the pump body 4 and of the bag 2 through the drainage orifice 72.
  • the slide 9 is still in its third position but has been shifted, as one with the flow reversal part 5, via the crenelations 99 and notches 59, by rotation about the axis X with respect to the lower plate 7, by action on the rod 95 near the end piece 98 so as to bring the orifices 52 of the flow reversal part 5 into alignment with the outlet orifices 74 of the lower plate 7.
  • the fluid passes from the bag 2 into the interior volume of the pump body 4 through the delivery orifices 58, then into the circulation space 40 through the orifices 52 which are aligned with the outlet orifices 74, and finally into the central bore of the lower plate 7 and to the outside of the pump body 4 and of the bag 2 through the drainage orifice
  • the pump 1 of this second embodiment differs from that of the first embodiment notably in that the fluid displacement member is not a turbine but a deformable disc-shaped membrane 106.
  • the pump body 104 may include two plates, a lower plate 107 and an upper plate 105, which between them define a disc-shaped fluid circulation space 140.
  • the plates 105 and 107 may be assembled with one another at their periphery, with the interposition of the deformable membrane 106 intended to propel fluid, which is also disc shaped.
  • the plates 105 and 107 are made of a polymer material, for example polypropylene.
  • the plates 105 and 107 may be obtained by moulding, such as by injection moulding.
  • the lower plate 107 may include a rigid wall 171 provided with a central orifice 172.
  • the central orifice 172 is provided to drain fluid out of the pump body 4.
  • the drainage orifice 172 opens to the outside of the bag 102 to allow the bag 102 to be drained.
  • the upper plate 105 may include a rigid wall 151 provided with a central orifice 154, and a plurality of peripheral orifices 152.
  • the peripheral orifices 152 are provided to let fluid into the circulation space 140, while the central orifice 154 is provided to let fluid out of the circulation space 140.
  • the upper plate 105 comprises four inlet orifices 152 and one outlet orifice 154.
  • the pump body 104 may also comprise a flow reversal part 103 which is received in abutment against the wall 151 of the upper plate 105. More specifically, the upper plate 105 comprises a peripheral border 157 which with the wall 151 delimits a housing 159 for accommodating a bottom wall 130 of the flow reversal part 103. When received in the housing 159, the flow reversal part 103 can be rotated with respect to the upper plate 105 about the central axis X.
  • the flow reversal part 103 comprises a ring 135 projecting from the bottom wall 130.
  • the bottom wall 130 and the ring 135 have a central bore 134 passing through them.
  • the bottom wall 130 comprises a plurality of peripheral orifices 138 situated near the junction between the wall 130 and the ring 135.
  • the orifices 138 are delivery orifices for delivering fluid from the pump body.
  • Each delivery orifice 138 may be connected to the central bore 134 by a canal 136.
  • the flow reversal part 103 comprises four delivery orifices 138 and four canals 136.
  • the pump body 104 may additionally comprise a slide 109, an upper wall 190 of which is able to close off the upper end of the ring 135 of the flow reversal part 103.
  • the slide 109 of this second embodiment is very similar to the slide 9 of the first embodiment.
  • the slide 109 may include a central collar 194, which projects on each side of the upper wall 190 and is closed off by a disc 193 on the same side as the face
  • the disc 193 may be configured to close off the central orifice 134 of the flow reversal part 103.
  • the collar 194 may include at its periphery a plurality of orifices 191 which are arranged between the disc 193 and the wall 190, these being first intake orifices for admitting fluid into the pump body 104.
  • the collar 194 may be able, via its open upper end, to accept one end 119A of a tube 119 for conveying fluid into the pump body 104 and the bag 102.
  • the end 119A may be crenelated and able selectively to open or to close off the intake orifices 191 when the tube is pushed as far as it will go into the collar 194.
  • the slide 109 may also comprise a central rod 195, projecting from the disc 193, and which in succession bears a disc 197 situated some distance from the disc 193, where the disc 197 is configured to close off the central orifice 154 of the upper plate 105, then a disc 194 situated some distance from the disc 197 and configured to close off the drainage orifice 172, and finally a threaded end piece 198 situated some distance from the disc 192 and intended for connection with a coupling, not depicted, adjustable between a closed configuration of shutting off the drainage orifice 172 and an open configuration for drainage of fluid through the drainage orifice 172.
  • the slide 109 When the pump 101 is in the assembled state illustarted in Figure 13, the slide 109 may be received by the flow reversal part 103, the upper plate 105 and the lower plate 107 so that the upper wall 190 closes off the upper end of the ring 135 and the rod 195 passes through the central orifices of the flow reversal part 103, of the upper plate 105 and of the lower plate 107.
  • the slide 109 can then be driven in translation in the direction of the central axis X relative to the base formed by the flow reversal part 103, the upper plate 105 and the lower plate 107, so as to free up a space 110 between the periphery of the upper wall 190 and the upper end of the ring 135.
  • This space 110 is a second intake orifice for admitting fluid into the pump body 104.
  • the slide 109 may be capable of a translational movement with respect to the base between three successive positions along the direction of the central axis X, these being:
  • the flow reversal part 103 and the slide 109 may include a method of securing them together to rotate as one about the central axis X, these being in the form of peripheral crenelations 199 of the collar 194 of the slide which are able to collaborate with complementary notches 139 provided in the periphery of the central orifice 134 of the flow reversal part.
  • the flow reversal part 103 and the slide 109 can be rotated simultaneously about the central axis X with respect to the upper plate 105 and to the lower plate 107, notably by action on the rod 195 of the slide which projects from the lower plate 107 through the drainage orifice 172, as illustrated by the arrow R in Figure 13.
  • the parts 103, 105, 107 and 109 are made of a polymer material, for example of polypropylene. These parts may be obtained by moulding, particularly by injection moulding.
  • the fluid when the pump 101 is in the assembled state and in a direct- flow configuration, the fluid may circulate in the circulation space 140 defined between the walls 151 and 171 of the plates 105 and 107 in a centripetal radial direction A 2 from the inlet orifices 152 towards the outlet orifice 154.
  • the membrane 106 which is a flexible sheet of elastomeric material, for example made of silicone, can define a mean plane P and is kept under tension in the circulation space 140, parallel to the direction A 2 .
  • a peripheral end 161 of the membrane 106 may be fixed to a rigid support 108.
  • the support 108 is made of a composite material with a polymer matrix, for example of glass fibre reinforced polyphenylene sulphide (PPS).
  • PPS glass fibre reinforced polyphenylene sulphide
  • the support 108 may be obtained by moulding, particularly by injection moulding.
  • the membrane 106 may be assembled with the support 108 by overmoulding or by two-shot moulding.
  • the membrane 106 can include two peripheral extensions 165 and 167 which extend from the peripheral end 161 of the membrane towards the plates 105 and 107.
  • the upper extension 165 may provide a sealed connection with the wall 151 of the upper plate 105, while the lower extension 167 provides a sealed connection with the wall 171 of the lower plate 107.
  • the extensions 165 and 167 may circumferentially bound the circulation space 140.
  • Each extension 165 or 167 of the membrane can be fixed to the corresponding wall 151 or 171 using two locking rings, respectively an upper ring 115 and a lower ring 116.
  • the locking rings may be made of a composite material with a polymer matrix, for example of glass fibre reinforced polyphenylene sulphide (PPS).
  • the membrane 106 can include a central orifice 164 and a plurality of peripheral orifices 162 situated radially towards the inside with respect to the peripheral extensions 165 and 167.
  • the fluid may circulate in the circulation space 140 on each side of the membrane 106, i.e. both in the volume defined between the membrane 106 and the upper plate 105 and in the volume defined between the membrane 106 and the lower plate 107.
  • the support 108 to which the membrane 106 is fixed can include a peripheral part 181 which projects towards the outside of the pump body 104.
  • This peripheral part 181 may be coupled to an actuating device 109 which, in this embodiment, comprises two linear electromagnetic actuators 109A and 109B.
  • Each actuator 109A or 109B when supplied with alternating current, may produce a reciprocating translational movement of a movable part 191, which results from the appearance of Laplace forces within the actuator.
  • the actuators 109A and 109B may be arranged in such a way that the movable parts 191 of the two actuators are attached to two opposite sides 181 A and 18 IB of the peripheral part 181 of the support 108.
  • the movable parts 191 of the two actuators 109A and 109B may be able to impart to the support 108, via rails 118, a translational movement in a direction B substantially perpendicular to the mean plane P of the membrane 106.
  • the actuating device 109 may generate alternately, at the peripheral end 161 of the membrane 106, an excitation force F that is substantially perpendicular to the mean plane P of the membrane 106.
  • the pump 101 in this second embodiment may adopt six different configurations, illustrated in Figures 14 and 21 to 25, which are analogous to the respective configurations of Figures 2 and 8 to 12.
  • the transition from one configuration to another may be achieved, as before, by imparting a translational and/or rotational movement to the slide 109, through an action applied to the end of the rod 195 that projects out from the lower plate 107, near the end piece 198.
  • an adjustable pump according to the invention may obtain different modes of operation, making it possible to provide not only a function of effective mixing of at least one fluid in a container associated with the pump but also functions of filling and of draining the container.
  • emptying may be passive, without the pump being actuated, or active, with the pump actuated to encourage emptying, notably when the pump operates centripetally.
  • the pump according to the invention may be particularly advantageous for mixing fluids of different types and that are difficult to mix.
  • a first liquid with a second element such as a powder, a gas or a second liquid that is not miscible with the first liquid
  • it allows the second element to be incorporated within the zone of greatest turbulence.
  • This may notably find applications in obtaining pharmaceutical solutions or suspensions that are obtained by dissolving or dispersing a powder in a liquid; in aerating a bioreactor liquid; or in preparing an emulsion from immiscible liquids.
  • Certain embodiments of the invention include a mixing assembly that can be sterile and disposable, which comprises a container and an adjustable pump according to the invention, and, a device for actuating the fluid displacement member of the pump, which is durable and can be coupled in succession to several mixing assemblies.
  • an adjustable pump according to the invention may comprise a single movable part, i.e. either a rotationally mobile flow reversal part or a translationally mobile slide.
  • the fluid displacement member may differ from those described hereinabove, namely a turbine with blades and a vibrating membrane.
  • the fluid displacement member may be a helicoidal turbine.
  • the invention may also be conceived of using axial screw pumps, positive displacement pumps or even gear pumps.
  • the structure of the system will need to be adapted, notably the inlets and outlets.
  • Many different aspects and embodiments are possible. Some of those aspects and embodiments are described below. After reading this specification, skilled artisans will appreciate that those aspects and embodiments are illustrative and do not limit the scope of the present invention. Embodiments may be in accordance with any one or more of the items as listed below.
  • An adjustable pump comprising a pump body and a fluid displacement member, the pump body defining at least one fluid intake orifice and at least one fluid delivery orifice, wherein the pump body defines at least one first intake orifice for intake of fluid into the pump body and is able to control the opening of at least one second intake orifice for intake of fluid into the pump body and/or to reverse the flow of fluid between the intake and delivery orifices.
  • Item 2 The adjustable pump according to Item 1, wherein the pump body has a main axis (X) and comprises:
  • a fixed part which defines a fluid circulation space, in which the fluid displacement member is housed, a fluid inlet orifice for letting fluid into the circulation space, and a fluid outlet orifice for letting fluid out of the circulation space,
  • the movable part which is capable of translational movement in the direction of the main axis (X) and/or of rotational movement about the main axis (X) with respect to the fixed part, the movable part defining the first fluid intake orifice for intake of fluid into the pump body,
  • the pump body being able, through a movement of the at least one movable part with respect to the fixed part, in translation in the direction of the main axis (X) and/or in rotation about the main axis (X), to control the opening of the second intake orifice for intake of fluid into the pump body and/or to reverse the flow of fluid between the intake and delivery orifices.
  • Item 3 The adjustable pump according to Item 2, wherein the fixed part of the pump body defines a drainage orifice for draining fluid out of the pump body.
  • Item 4 The adjustable pump according to any one of the preceding items, wherein the at least one first intake orifice is a central orifice of the pump body, whereas the at least one delivery orifice is a peripheral orifice of the pump body.
  • the adjustable pump according to any one of the preceding items, comprising at least one tube designed to collaborate with the at least one first intake orifice, which is movable with respect to the pump body between a shutting-off position in which the first intake orifice is shut off and an opening position in which the first intake orifice is open.
  • Item 6 The adjustable pump according to any one of the preceding items, comprising at least one tube designed to collaborate with the at least one first intake orifice, which is movable with respect to the pump body between a shutting-off position in which the first intake orifice is shut off and an opening position in which the first intake orifice is open.
  • the pump body has a main axis (X) and comprises a movable part which is a flow reversal part capable of rotating about the main axis (X) with respect to a fixed part of the pump body, the flow reversal part being capable of rotating about the main axis (X) between a direct-flow position, in which it causes fluid to circulate through the pump body from the at least one intake orifice towards the at least one delivery orifice, and a reverse-flow position, in which it causes fluid to circulate through the pump body from the at least one delivery orifice towards the at least one intake orifice.
  • Item 7 The adjustable pump according to any one of the preceding items, wherein the pump body has a main axis (X) and comprises a movable part which is a slide, the pump body comprising a base formed at least in part by a fixed part of the pump body, the slide and the base being adapted to define between them the second intake orifice, the slide being capable of translational movement with respect to the base in the direction of the main axis (X) between a shutting-off position in which the second intake orifice is shut off and an opening position in which the second intake orifice is open.
  • X main axis
  • Item 8 The adjustable pump according to Item 7, wherein the at least one first intake orifice is defined by the slide.
  • Item 9 The adjustable pump according to either one of Items 6 and 7, wherein the at least one first intake orifice is defined by the flow reversal part.
  • Item 10 The adjustable pump according to any one of Items 7 to 9, wherein the base of the pump body defines a drainage orifice for draining fluid out of the pump body and a fluid circulation space, in which the fluid displacement member is housed, whereas the slide defines a shut-off element for shutting off the drainage orifice and a shut-off element for shutting off an access orifice that provides access to the circulation space, the slide being capable of translational movement with respect to the base between three successive positions in the direction of the main axis (X), namely:
  • Item 1 1. The adjustable pump according to any one of Items 7 to 10, wherein the base comprises a fixed part and a flow reversal part which is capable of rotating about the main axis (X) with respect to the fixed part, the flow reversal part being capable of rotating about the main axis (X) between a direct-flow position, in which it causes fluid to circulate through the pump body from the at least one intake orifice towards the at least one delivery orifice, and a reverse-flow position, in which it causes fluid to circulate through the pump body from the at least one delivery orifice towards the at least one intake orifice.
  • a direct-flow position in which it causes fluid to circulate through the pump body from the at least one intake orifice towards the at least one delivery orifice
  • a reverse-flow position in which it causes fluid to circulate through the pump body from the at least one delivery orifice towards the at least one intake orifice.
  • Item 12 The adjustable pump according to Item 11 , comprising an element adapted to cause the slide to rotate as one with the flow reversal part.
  • Item 13 The adjustable pump according to any one of the preceding items, wherein the fluid displacement member is a turbine capable of rotating about a main axis (X) of the pump body.
  • Item 14 The adjustable pump according to Item 13, wherein the pump body defines a fluid circulation space in which the turbine is housed, a fluid inlet orifice for letting fluid into the circulation space, and a fluid outlet orifice for letting fluid out of the circulation space, each inlet orifice of the circulation space opening into the circulation space near a central region of the turbine, whereas each outlet orifice of the circulation space opens into the circulation space near the periphery of the turbine.
  • Item 15 The adjustable pump according to any one of Items 1 to 12, wherein the fluid displacement member is a deformable membrane in the shape of a disc.
  • Item 16 The adjustable pump according to Item 15, wherein the pump body defines a fluid circulation space in which the membrane is housed, a fluid inlet orifice for letting fluid into the circulation space and a fluid outlet orifice for letting fluid out of the circulation space, the membrane being held in the circulation space substantially parallel to the direction of circulation of fluid between the inlet orifice and the outlet orifice, while being substantially centered on a main axis (X) of the pump body.
  • each inlet orifice of the circulation space opens into the circulation space near the periphery of the membrane, whereas each outlet orifice of the circulation space opens into the circulation space near a central region of the membrane.
  • Item 18 The adjustable pump according to any one of Items 15 to 17, wherein the membrane comprises at least one peripheral orifice and at least one central orifice.
  • Item 19 The adjustable pump according to any one of the preceding items, wherein the intake and delivery orifices of the pump body open into a container intended to receive at least one fluid, so that the fluid circulates directly and without a duct between the container and the pump body.
  • Item 20 The adjustable pump according to Item 19, wherein the container is made of a flexible material.
  • Item 21 A mixing assembly comprising a container and an adjustable pump according to any one of the preceding items.
  • Item 22 The mixing assembly according to Item 21, comprising at least one filling tube designed to collaborate with the at least one first intake orifice of the pump body.
  • Item 23 An adjustable pump adaptable to translate between:
  • the adjustable pump is adapted to mix the first fluid with a second fluid, wherein the first and second fluids are introduced to the adjustable pump through different passageways,
  • adjustable pump is adapted to discharge the first and/or second fluid into the vessel.
  • Item 24 The adjustable pump according to Item 23, wherein the first fluid is disposed within the vessel prior to entering the adjustable pump.
  • Item 25 The adjustable pump according to either one of Items 23 and 24, wherein the second fluid is disposed outside of the vessel prior to entering the adjustable pump.
  • Item 26 The adjustable pump according to any one of Items 23 to 25, wherein in the first and second positions, the first and/or second fluids are recirculated through the adjustable pump into the vessel.
  • Item 27 An adjustable pump adapted to be disposed in a vessel, the adjustable pump comprising:
  • a pump body defining at least one fluid intake orifice
  • adjustable pump is adapted to translate between a first position and a second position, and wherein the first and second positions define different fluid flow passageway through the pump body.
  • Item 28 The adjustable pump according to Item 27, wherein the fluid displacement member is a deformable membrane in the shape of a disc.
  • Item 29 The adjustable pump according to any one of Items 23 to 28, wherein the translation between the first and second positions occurs by rotation of a slide disposed along a main axis (X) of the adjustable pump.
  • Item 30 The adjustable pump according to any one of Items 23 to 29, wherein the adjustable pump further comprises a third position where the adjustable pump is adapted to drain the first and/or second fluids from the vessel.
  • Item 31 The adjustable pump according to any one of Items 23 to 30, wherein the adjustable pump further comprises a drainage orifice, the drainage orifice adapted to drain fluid from the vessel.
  • Item 32 The adjustable pump according to any one of Items 23 to 31, wherein the adjustable pump is adapted to be disposed within a container.
  • Item 33 The adjustable pump according to any one of Items 23 to 32, wherein the adjustable pump is adapted to be disposed within a container including an at least partially flexible material.
  • Item 34 The adjustable pump according to any one of Items 23 to 33, wherein the adjustable pump is adapted to be secured to a container.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

Pompe réglable (1 ; 101) comprenant un corps (4 ; 104) de pompe et un organe à déplacement de fluide (6 ; 106), le corps de pompe délimitant au moins un orifice d'admission de fluide (10, 91 ; 110, 191) et au moins un orifice de distribution de fluide (58 ; 138), caractérisée en ce que le corps (4 ; 104) de pompe délimite au moins un premier orifice d'admission (91 ; 191) pour admission de fluide dans le corps de pompe et peut commander l'ouverture d'au moins un second orifice d'admission (10 ; 110) pour admission de fluide dans le corps de pompe et/ou inverser l'écoulement de fluide entre le ou les premiers orifices d'admission de fluide (10, 91 ; 110, 191) et le ou les orifices de distribution de fluide (58 ; 138).
PCT/EP2015/051414 2014-01-24 2015-01-23 Pompe à tubulure intégrée WO2015110608A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1450635 2014-01-24
FR1450635A FR3016935A1 (fr) 2014-01-24 2014-01-24 Pompe modulable

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WO2015110608A1 true WO2015110608A1 (fr) 2015-07-30

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3376050A1 (fr) * 2017-03-14 2018-09-19 Grundfos Holding A/S Groupe pompe centrifuge

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1463173A (fr) * 1965-11-12 1966-06-03 Materiel Telephonique Pompe rotative réglable
FR2178378A6 (fr) * 1972-03-30 1973-11-09 Materiel Telephonique
DE9013992U1 (de) * 1990-10-08 1991-10-24 Grundfos International A/S, Bjerringbro Motorpumpenaggregat für Kreislaufsysteme mit zwei parallelen Kreisläufen
EP0529353A1 (fr) * 1991-08-23 1993-03-03 Grundfos A/S Chaudière à gaz
WO2003071109A1 (fr) * 2002-02-22 2003-08-28 Gpm Geräte- Und Pumpenbau Gmbh Pompe electrique de fluide refrigerant a soupape integree et procede de commande de ladite soupape
DE202008009582U1 (de) * 2008-07-11 2008-09-18 Chen, Chi-Der Senkmotor für Aquarium

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1463173A (fr) * 1965-11-12 1966-06-03 Materiel Telephonique Pompe rotative réglable
FR2178378A6 (fr) * 1972-03-30 1973-11-09 Materiel Telephonique
DE9013992U1 (de) * 1990-10-08 1991-10-24 Grundfos International A/S, Bjerringbro Motorpumpenaggregat für Kreislaufsysteme mit zwei parallelen Kreisläufen
EP0529353A1 (fr) * 1991-08-23 1993-03-03 Grundfos A/S Chaudière à gaz
WO2003071109A1 (fr) * 2002-02-22 2003-08-28 Gpm Geräte- Und Pumpenbau Gmbh Pompe electrique de fluide refrigerant a soupape integree et procede de commande de ladite soupape
DE202008009582U1 (de) * 2008-07-11 2008-09-18 Chen, Chi-Der Senkmotor für Aquarium

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3376050A1 (fr) * 2017-03-14 2018-09-19 Grundfos Holding A/S Groupe pompe centrifuge
WO2018166967A1 (fr) * 2017-03-14 2018-09-20 Grundfos Holding A/S Ensemble pompe centrifuge
CN110431313A (zh) * 2017-03-14 2019-11-08 格兰富控股联合股份公司 离心泵机组
CN110431313B (zh) * 2017-03-14 2021-06-18 格兰富控股联合股份公司 离心泵机组
US11555499B2 (en) 2017-03-14 2023-01-17 Grundfos Holding A/S Centrifugal pump assembly

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