EP3327287A1 - Pompe à membrane - Google Patents

Pompe à membrane Download PDF

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Publication number
EP3327287A1
EP3327287A1 EP16002479.0A EP16002479A EP3327287A1 EP 3327287 A1 EP3327287 A1 EP 3327287A1 EP 16002479 A EP16002479 A EP 16002479A EP 3327287 A1 EP3327287 A1 EP 3327287A1
Authority
EP
European Patent Office
Prior art keywords
inlet
outlet
chamber
pumping
valve
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.)
Granted
Application number
EP16002479.0A
Other languages
German (de)
English (en)
Other versions
EP3327287B1 (fr
Inventor
Matthias Abel
Daniel Gisbertz
Andreas Frerix
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.)
PSG Germany GmbH
Original Assignee
Almatec Maschinenbau GmbH
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 Almatec Maschinenbau GmbH filed Critical Almatec Maschinenbau GmbH
Priority to EP16002479.0A priority Critical patent/EP3327287B1/fr
Priority to US15/807,289 priority patent/US11085433B2/en
Priority to JP2017223908A priority patent/JP7446702B2/ja
Publication of EP3327287A1 publication Critical patent/EP3327287A1/fr
Priority to JP2023196915A priority patent/JP2024023352A/ja
Application granted granted Critical
Publication of EP3327287B1 publication Critical patent/EP3327287B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F04B43/02—Machines, pumps, or pumping installations having flexible working members having plate-like flexible members, e.g. diaphragms
    • F04B43/025—Machines, pumps, or pumping installations having flexible working members having plate-like flexible members, e.g. diaphragms two or more plate-like pumping members in parallel
    • F04B43/026—Machines, pumps, or pumping installations having flexible working members having plate-like flexible members, e.g. diaphragms two or more plate-like pumping members in parallel each plate-like pumping flexible member working in its own pumping chamber
    • 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
    • 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
    • F04B43/0045—Special features with a number of independent working chambers which are actuated successively by one mechanism
    • 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
    • F04B53/106—Flap valves the valve being formed by one or more flexible elements the valve being a membrane
    • F04B53/1065—Flap valves the valve being formed by one or more flexible elements the valve being a membrane fixed at its centre
    • 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
    • F04B53/106—Flap valves the valve being formed by one or more flexible elements the valve being a membrane
    • F04B53/1067—Flap valves the valve being formed by one or more flexible elements the valve being a membrane fixed at its whole periphery and with an opening at its centre
    • 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
    • F04B53/1072—Valves; Arrangement of valves the valve being an elastic body, the length thereof changing in the opening direction
    • 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
    • F04B45/00—Pumps or pumping installations having flexible working members and specially adapted for elastic fluids
    • F04B45/04—Pumps or pumping installations having flexible working members and specially adapted for elastic fluids having plate-like flexible members, e.g. diaphragms
    • F04B45/043—Pumps or pumping installations having flexible working members and specially adapted for elastic fluids having plate-like flexible members, e.g. diaphragms two or more plate-like pumping flexible members in parallel

Definitions

  • the invention relates to a diaphragm pump with a pumping chamber, wherein the pumping chamber is connected via an inlet channel with an inlet chamber and via an outlet channel with an outlet chamber.
  • Membrane pumps which have a pump head connected substantially to a drive.
  • the pump head has several, for example, four pumping chambers, which are each sealed by a pumping membrane with respect to a drive chamber.
  • the respective pumping membrane is connected via an associated pumping element with a swash plate arranged in the drive chamber.
  • the pumping membrane is caused by a wobbling motion of the swash plate in a tumbling axially periodic pumping movement.
  • the swash plate sits on a drive pin of a drive shaft connected to the drive.
  • the drive pin is inclined relative to the longitudinal axis of the drive shaft and connected to the swash plate via a ball bearing.
  • the inlet chamber is arranged centrally and the outlet chamber is arranged concentrically to the inlet chamber.
  • the outlet chamber has an outlet channel at its lower end in the vertical direction, wherein a valve plate having the pumping chambers and valves is arranged between an intermediate plate part having the chambers and a diaphragm support part carrying the pumping membranes, wherein the inlet chamber of the intermediate plate part in a shoulder of the valve plate is one of the inlet valves having upstream inlet valve plate to the pumping chambers out.
  • Such pumps are used in particular in the fields of chemistry, pharmacy and biotechnology, in which the media to be pumped are sometimes very expensive, so that it is desirable that after pumping possible no or only a small residual volume of the pumped medium remains in the diaphragm pump , Furthermore, the complete filling of such diaphragm pumps with the fluid without air inclusions advantageous for the flow rate.
  • a disadvantage of the DE 101 17 531 and DE 20 2006 020 237 U1 known diaphragm pumps which have proven to be basically, that they have a central inlet chamber, which results in that, because of the arranged substantially concentric with the inlet chamber, outer outlet chamber, a relatively large residual volume of the pumped medium after completion of the pumping operation in the inlet chamber remains. Furthermore, most air remains in the upper pumping chambers of the pump, which usually has a detrimental effect on the delivery stability (pulsation) and the pumping power.
  • a disadvantage of the DE 10 2008 035 592 B4 known diaphragm pump that remains at least in the upper pumping chambers of the diaphragm pump air.
  • the object of the present invention is therefore to improve the known diaphragm pumps with regard to the emptying and / or the venting of the pumping chambers.
  • the invention is based on the idea that the outlet opening of the outlet valve surrounds the inlet opening of the inlet valve or the inlet opening surrounds the outlet opening.
  • the exhaust valve opening surrounding the inlet valve opening there is a possibility that through the above the inlet valve opening provided portions of the Auslassventilötechnisch possibly in the pumping chamber air can flow from the pumping chamber into the outlet chamber and not - as in some diaphragm pumps of the prior art - is trapped in the upper part of the pumping chamber.
  • the outlet valve opening surrounding the inlet valve opening there is also the possibility that the fluid to be pumped located in the lower region of a pumping chamber can flow into the outlet chamber through the region of the outlet opening provided below the inlet opening and thus a good residual emptying is achieved.
  • both the outlet chamber and the inlet chamber can be arranged centrally. Together with an outlet channel arranged in the lower region in a preferred embodiment, both the inlet chamber and the outlet chamber can now run virtually completely empty.
  • the diaphragm pump has a pump chamber, preferably two, and more preferably three, four or more pumping chambers. In particular, it can be changed cyclically, in particular periodically, by an external force in its volume.
  • a membrane which is preferably made of an elastic material, for example plastic, rubber, elastomer, silicone or an equivalent material, which may in particular also comprise composite materials for increased stability and service life.
  • the pumping chamber if the wall formed by the membrane is designed so that it can squeeze the space provided for the formation of the pumping chamber, be dimensioned with respect to the vorzuhaltenden maximum volume of the pumping chamber so that this maximum volume exactly as planned within a pumping stroke promoting fluid volume corresponds. Conceivable, however, are also significant larger pumping chambers which, for example, improve the flow behavior, the efficiency of the diaphragm pump or the production costs.
  • a pumping chamber has at least one inlet and at least one outlet valve.
  • the inlet valve has an inlet opening which can be closed by an inlet valve body
  • the outlet valve has an outlet opening which can be closed by an outlet valve body.
  • the respective valve body can be formed in particular by an elastic membrane, which usually the valve body associated with the valve opening at a suitable applied pressure difference at least partially releases.
  • materials for the valve body for example, metals are possible, but in particular also plastic, rubber, elastomer, silicone or an equivalent material conceivable, which in particular also includes composite materials.
  • valve body When there is a pressure difference in the opposite direction, the valve body closes the valve opening and / or a spring element is provided which acts on the valve body and biases it into the closed position at positions outside the closed position in which the valve body closes the valve opening.
  • a membrane is here in particular a preferably flat plate understood, which usually has elastic and / or resilient properties, and if only in sections, for example by a flexible edge portion.
  • a valve controller may control the opening and closing of the valves or affect an optimization of the pumping process.
  • the outlet opening surrounds the inlet opening or the inlet opening surrounds the outlet opening.
  • the invention turns away from the known from the prior art solutions in which the inlet opening and the outlet opening are arranged side by side, for example, one above the other.
  • the inlet valve and / or the outlet valve is an umbrella valve.
  • An umbrella valve is understood to mean a valve in which the valve body is formed by a screen.
  • An inlet chamber acts to maintain the fluid.
  • the inlet opening may be formed directly in a wall of the inlet chamber.
  • the inlet opening opens directly into the pumping chamber.
  • an inlet channel is provided between the inlet chamber and the pump chamber, which connects the inlet chamber with the pumping chamber. This creates the possibility of making the position of the inlet chamber within the membrane pump relative to the pumping chamber more free.
  • An outlet chamber is used for collecting and bundling the pumped fluid, in particular for forwarding into a central outlet of the diaphragm pump, in particular for a plurality of pumping chambers and / or outlet valves.
  • the outlet opening may be formed directly in a wall of the outlet chamber.
  • the outlet opening opens directly into the pumping chamber.
  • an outlet channel is provided between the outlet chamber and the pump chamber, which connects the outlet chamber with the pumping chamber. This will be the possibility created to make the position of the outlet chamber within the diaphragm pump relative to the pumping chamber more freely.
  • the outlet opening surrounds the inlet opening
  • preferred embodiments are conceivable in which the outlet opening is formed by a single ring-shaped opening.
  • annular is understood here to mean that, starting from a center which surrounds the opening, a section of the opening is provided in each radial direction.
  • annular is not limited to the description of annular openings.
  • the shape of the opening forming the opening is defined in particular by the shape of the free space bounding walls. In the case of an annular opening, the opening is delimited, for example, by a first annular wall and a second, second annular wall arranged opposite the first annular wall.
  • the shape of the free space forming the opening is limited by an outer wall, which is surrounded by a center, which surrounds the opening, and an inner wall.
  • the outer wall and the inner wall have the same geometric shape.
  • the inner wall and the outer wall are designed concentrically with each other.
  • the distance between the inner wall and the outer wall is constant at each point in the circumferential direction of the outlet opening. This is particularly useful when the outer wall and the inner wall have the same geometric shape.
  • embodiments are also conceivable in which the distance between the inner wall and the outer wall is not constant at every point in the circumferential direction of the outlet opening.
  • it may offer advantages to choose the distance between the inner wall and the outer wall in the upper region and / or in the lower region of the outlet opening larger than in lateral areas to the fluid flowing through the outlet opening, in particular in the upper and / or lower Area to offer extra space.
  • This can be achieved in particular by the fact that in a preferred embodiment, the outer wall and the inner wall do not have the same geometric shape or have the same geometric shape, but are not carried out concentrically with each other.
  • the outlet opening of the outlet valve is formed by at least two separate outlet opening sections surrounding the inlet opening.
  • the term "outlet opening" in the context of the present description thus does not describe a single opening but also becomes used as a representation of a sum of individual openings that are delimited from each other.
  • the outlet opening is segmented into a plurality of outlet opening sections.
  • the outlet opening sections are in particular preferably arranged in the manner of a ring around the inlet opening.
  • the outlet opening may be formed by an arcuate outlet opening section above the inlet opening and / or an arcuate outlet opening section below the inlet opening, while in a particularly preferred embodiment no outlet opening sections are provided laterally of the inlet opening.
  • the affiliation of the outlet opening section to an outlet valve is achieved in a preferred embodiment in that the outlet opening sections are closed by a common valve body.
  • the alternative of the invention in which the outlet port surrounds the inlet port is the inlet port formed by a single port not divided into outlet port sections.
  • the inlet opening through inlet opening sections, which are arranged spatially within an envelope enclosing the outlet opening sections, for example to provide a collection of adjacent circular inlet opening sections instead of a single circular inlet opening.
  • the inlet opening surrounds the outlet opening
  • preferred embodiments are conceivable in which the inlet opening is formed by a single annular opening.
  • annular is understood here to mean that, starting from a center which surrounds the opening, a section of the opening is provided in each radial direction.
  • annular is not limited to the description of annular openings.
  • the shape of the opening forming the opening is defined in particular by the shape of the free space bounding walls. In the case of an annular opening, the opening is delimited, for example, by a first annular wall and a second, second annular wall arranged opposite the first annular wall.
  • the shape of the free space forming the opening is limited by an outer wall, which is surrounded by a center, which surrounds the opening, and an inner wall.
  • the outer wall and the inner wall have the same geometric shape.
  • the inner wall and the outer wall are designed concentrically with each other.
  • Particularly preferred is at any point in the circumferential direction the inlet opening, the distance between the inner wall and the outer wall is constant. This is particularly useful when the outer wall and the inner wall have the same geometric shape.
  • embodiments are also conceivable in which the distance between the inner wall and the outer wall is not constant at every point in the circumferential direction of the inlet opening.
  • it can offer advantages to choose the distance between the inner wall and the outer wall in the upper region and / or in the lower region of the inlet opening larger than in lateral areas to the fluid flowing through the inlet opening in particular in the upper and / or lower Area to offer extra space.
  • This can be achieved in particular by the fact that in a preferred embodiment, the outer wall and the inner wall do not have the same geometric shape or have the same geometric shape, but are not carried out concentrically with each other.
  • the inlet opening of the inlet valve is formed by at least two separate inlet opening sections surrounding the inlet opening.
  • the term "inlet opening" in the context of the present description therefore does not describe a single opening but is also used as a representative of a sum of individual openings which are delimited from one another.
  • the inlet opening is segmented into a plurality of inlet opening sections.
  • the inlet opening sections are in particular preferably arranged in the manner of a ring around the inlet opening.
  • the inlet opening may be formed by an arcuate inlet opening section above the outlet opening and / or an arcuate inlet opening section below the outlet opening, while in a particularly preferred embodiment no inlet opening sections are provided laterally of the outlet opening.
  • the affiliation of the inlet opening section to an inlet valve is achieved in a preferred embodiment in that the inlet opening section are closed by a common valve body.
  • the outlet opening is formed by a single, not divided into outlet opening portions opening .
  • a collection of juxtaposed circular outlet opening sections may be provided.
  • the inlet chamber and the outlet chamber are designed around a common central axis.
  • the central axis is preferably formed by the longitudinal axis of the diaphragm pump.
  • the central axis preferably leads through the inlet chamber and through the outlet chamber.
  • a central arrangement of the inlet chamber, or the outlet chamber is provided, which is understood to mean that the outlet chamber or the inlet chamber have a shape that is rotationally symmetrical about a lying on the central axis point, or have a shape that around a point lying on the central axis is point-symmetrical, or have a shape which is mirror-symmetrical with respect to a plane containing the central axis, the central axis passing through a region of the outlet chamber and / or a region of the inlet chamber.
  • the inlet chamber is formed about the central axis with the central axis passing through the inlet chamber while the outlet chamber is formed about the central axis such that the central axis does not pass through the outlet chamber, the outlet chamber being annular around the central axis, for example is.
  • both the outlet chamber and the inlet chamber have a shape that is rotationally symmetrical about a point lying on the central axis, or that have a shape that is point-symmetrical about a point lying on the central axis, or a shape which is mirror-symmetrical with respect to a plane including the center axis, but the center axis passes through only a portion of the inlet chamber but not through a portion of the outlet chamber.
  • the outlet chamber is configured about the central axis with the central axis passing through the outlet chamber while the inlet chamber is formed about the central axis such that the central axis does not pass through the inlet chamber, the inlet chamber being annular around the central axis, for example is.
  • both the outlet chamber and the inlet chamber have a shape that is rotationally symmetrical about a point lying on the central axis, or that have a shape that is point-symmetrical about a point lying on the central axis, or a shape which is mirror-symmetrical with respect to a plane containing the center axis, but the central axis passes through only a portion of the outlet chamber but not through a portion of the inlet chamber.
  • the inlet chamber has a centrally arranged inlet channel.
  • feed channels to the individual inlet valves branch.
  • a favorable flow distribution to the inlet valves is achieved through the central inlet channel.
  • the inlet chamber has, at its lower region in the vertical direction, a wall which is formed such that the wall is substantially flush with the lower part of the inlet opening of at least one inlet valve.
  • one or more lowest-lying intake valves pass with their respective lower portion of their respective intake port into the wall of the intake chamber such that the intake chamber can completely empty over the intake valves and residual fluid is pumped from the intake to the exhaust chamber during the pumping operation.
  • the outlet chamber has a centrally arranged outlet channel.
  • feed channels can lead from the individual outlet valves to this centrally arranged outlet channel.
  • the outlet chamber has at its lower region in the vertical direction a wall which is formed such that the wall is substantially flush with the lower part of the outlet opening of at least one outlet valve.
  • one or more lowermost exhaust valves merge with their respective lower portion of their respective exhaust port into the wall of the exhaust chamber such that the exhaust chamber can completely deflate through the intake valves and residual fluid is pumped from the inlet to the exhaust chamber during the pumping operation.
  • a plurality of pumping chambers are present, and per pumping chamber preferably at least one inlet valve and / or at least one outlet valve is provided.
  • all the outlet valves of the diaphragm pump are of similar design to one another and, in particular, preferably have the same shape of the outlet opening and / or the same shape of the valve body.
  • all intake valves of the diaphragm pump are designed to be similar to one another and, in particular, preferably have the same shape of the inlet opening and / or the same shape of the valve body.
  • an inlet valve is provided per pumping chamber.
  • an inlet valve plate is provided in which the inlet valves are arranged spatially separated are.
  • the diaphragm pump has four pumping chambers.
  • the inlet valve plate then has four spatially separate inlet valves.
  • an outlet valve is provided per pumping chamber.
  • an exhaust valve plate is provided, in which the exhaust valves are arranged spatially separated.
  • the diaphragm pump has four pumping chambers.
  • the exhaust valve plate then has four spatially separate inlet valves.
  • a valve plate is provided in which both the intake valves and the exhaust valves are executed.
  • one of the outlet valves is arranged in the lower direction in the vertical direction of the pump head or the valve plate corresponding to an outlet channel.
  • the emptying of the diaphragm pump is additionally favored.
  • both the number of exhaust valves and the number of intake valves corresponds to the number of pumping chambers.
  • a number of four pumping chambers having correspondingly four outlet valves in the valve plate and four inlet valves in the inlet valve plate have proven to be particularly favorable.
  • valve plate between a front plate comprising the inlet chamber and an intermediate plate having the outlet chamber on one side and a diaphragm support member supporting the pump membranes on the other side, a pumping chamber or pumping chambers and the outlet valve or valves and arranged the inlet valve, or the intake valves having valve plate.
  • the valve plate may be substantially planar.
  • an inlet channel is provided between the inlet chamber and a pumping chamber.
  • the inlet valve assigned to the pumping chamber is particularly preferably arranged in the inlet channel, in particular at the beginning or at the end of the inlet channel.
  • between the outlet chamber and a pumping chamber Be provided outlet is particularly preferably arranged in the outlet channel, in particular preferably at the beginning or at the end of the outlet channel.
  • the invention comprises a device for conveying fluids, with a diaphragm pump according to the invention, wherein a pump head with a drive chamber and a drive is provided and the pumping chamber is sealed by a pumping membrane relative to the drive chamber.
  • the pumping membrane can be displaced into a periodic axial pumping movement via an associated pumping element.
  • Fig. 1 shows the pump head 2 of a diaphragm pump 1.
  • the diaphragm pump 1 forms part of in Fig. 6 illustrated device.
  • the pump head 2 has a front plate 3, an intermediate plate 4, also referred to as a chamber housing, a valve plate 5 and an end plate 6, also referred to as a membrane carrier, with pumping diaphragms 7, which have pumping elements with pumping elements Fig. 2 not shown swash plate are connected.
  • a central inlet 10 is provided which opens into a central inlet chamber 12 via an inlet channel 11 formed in the front panel 3.
  • an outlet 13 is provided, which has a partially in the front plate 3 and partially formed in the intermediate plate 4 outlet channel 15 is also connected to a central outlet chamber 14 of the intermediate plate 4.
  • the valve plate 5 is arranged between the intermediate plate 4 and the end plate 6, the valve plate 5 is arranged.
  • the valve plate 5 has four pump chambers 18 on its rear side 17 facing away from the intermediate plate 4.
  • the pump chambers 18, which are open toward the end plate 6, are respectively closed or bound by a pump diaphragm 7.
  • the pumping membranes 7 are arranged between the end plate 6 and the valve plate 5.
  • An annular bead 19 of the pumping diaphragm 7 is arranged in a groove 20 of the valve plate 5 arranged around the pumping chamber 18.
  • the intermediate plate 4 closes the inlet chamber 12 of the front plate 3, but each have inlet ducts 22 leading inlet channels 16 which lead through the outlet chamber 14 of the intermediate plate 4.
  • the valve plate 5 has four inlet valves 22 which are designed as umbrella valves and which connect the inlet chamber 12 via the respective channels 16 with the pumping chamber 18 assigned to the respective inlet valve 22.
  • the valve plate 5 further seals the central outlet chamber 14 of the intermediate plate 4.
  • the valve plate 5 is formed substantially flat and has four outlet valves 24 corresponding to the outlet chamber 14, which are likewise designed as umbrella valves.
  • the outlet opening of the outlet valve 24 is formed by outlet opening sections 23 a of the respective outlet valve 24, which surround inlet opening sections 23 b of the respective same pump chamber 18 associated inlet valve 22, which form the inlet opening of the inlet valve 22.
  • the outlet opening portions 23a preferably directly adjoin the inlet opening portions 23b, with the respective outlet opening portions 23a and the inlet opening portions 23b being separated from each other, particularly by a bead or wall.
  • swash plate 9 is connected via a ball bearing 25 with a pin 26 of a drive shaft 27.
  • the pin 26 is inclined relative to the longitudinal axis 28 of the drive shaft 27 to produce a tumbling motion of the swash plate 8.
  • the connection between the drive shaft and the swash plate 8 is arranged in the region of one of the end plate 6 upstream drive chamber 29.
  • the inlet chamber 12 is sealed off from the intermediate plate 4 by a seal 30, which in the example is a whisker seal.
  • the outer boundary of the outlet chamber 14 is sealed by a seal 31, which is also formed in the example as a whisker seal.
  • the outlet openings 23 a of the valve plate 5 are sealed to the inlet channels 16 of the intermediate plate 4 also by arranged in a groove 33 beads 34 on the umbrella-like valve body of the exhaust valve 24.
  • the swash plate 8 is offset due to the inclination of the pin 26 in a circumferential wobbling motion, without mitzurot Schlieren with the drive shaft 27. Due to the wobbling motion of the swash plate 8, the pumping diaphragms 7 are put into a periodically axial pumping movement, by which negative pressure is generated in the pumping chambers 18 alternately in the intake stroke by a movement in the direction of the drive chamber 29 and in the exhaust stroke by a movement in the direction of the front plate 3.
  • the inlet valve 22 opens and closes the corresponding outlet valve 24 automatically when there is negative pressure in the associated pumping chamber 18.
  • the pumping medium is conveyed out of the pumping chamber 18 through the outlet chamber 14 to the outlet 13.
  • Fig. 2 shows a front perspective view of the pump head of Fig. 1 with a valve plate. Visible in this perspective view, the sequence of components front panel 3, intermediate plate 4, valve plate 5 and end plate. 6
  • Fig. 3 shows a front and rear view of the front panel 3 of the pump head of the invention Fig. 1 , Clearly recognizable here too are the inlet channel 11 and the outlet channel 15 as well as the inlet chamber 12.
  • Fig. 4 shows a front and rear view of a valve plate 5 of the pump head of the invention Fig. 1 ,
  • the annular outlet valves 24, the circular-segment-like outlet openings 23 a and inlet openings 23 b in the form of holes of the pumping chamber 18 can be seen, as well as the disk-like inlet valves 22.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Reciprocating Pumps (AREA)
  • Compressor (AREA)
  • Details Of Reciprocating Pumps (AREA)
EP16002479.0A 2016-11-23 2016-11-23 Pompe à membrane Active EP3327287B1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP16002479.0A EP3327287B1 (fr) 2016-11-23 2016-11-23 Pompe à membrane
US15/807,289 US11085433B2 (en) 2016-11-23 2017-11-08 Diaphragm pump
JP2017223908A JP7446702B2 (ja) 2016-11-23 2017-11-21 ダイヤフラムポンプ
JP2023196915A JP2024023352A (ja) 2016-11-23 2023-11-20 ダイヤフラムポンプ

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP16002479.0A EP3327287B1 (fr) 2016-11-23 2016-11-23 Pompe à membrane

Publications (2)

Publication Number Publication Date
EP3327287A1 true EP3327287A1 (fr) 2018-05-30
EP3327287B1 EP3327287B1 (fr) 2024-05-15

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP16002479.0A Active EP3327287B1 (fr) 2016-11-23 2016-11-23 Pompe à membrane

Country Status (3)

Country Link
US (1) US11085433B2 (fr)
EP (1) EP3327287B1 (fr)
JP (2) JP7446702B2 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102018008036A1 (de) * 2018-10-11 2020-04-16 Almatec Maschinenbau Gmbh Membranpumpe
WO2020182921A1 (fr) 2019-03-13 2020-09-17 Psg Germany Gmbh Dispositifs de clapet destinés à une pompe à membrane

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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JP2018084233A (ja) 2018-05-31
US20180142684A1 (en) 2018-05-24
JP2024023352A (ja) 2024-02-21
JP7446702B2 (ja) 2024-03-11
US11085433B2 (en) 2021-08-10

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