EP4375512A1 - Dispositif de pompage, appareil ménager comprenant un dispositif de pompage et procédé de fonctionnement d'un dispositif de pompage - Google Patents

Dispositif de pompage, appareil ménager comprenant un dispositif de pompage et procédé de fonctionnement d'un dispositif de pompage Download PDF

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Publication number
EP4375512A1
EP4375512A1 EP23204614.4A EP23204614A EP4375512A1 EP 4375512 A1 EP4375512 A1 EP 4375512A1 EP 23204614 A EP23204614 A EP 23204614A EP 4375512 A1 EP4375512 A1 EP 4375512A1
Authority
EP
European Patent Office
Prior art keywords
housing
switching unit
fluid
rotary wheel
pressure port
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP23204614.4A
Other languages
German (de)
English (en)
Inventor
Reinhold Steinkemper
Andreas Kiefer
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.)
Miele und Cie KG
Original Assignee
Miele und Cie KG
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 Miele und Cie KG filed Critical Miele und Cie KG
Publication of EP4375512A1 publication Critical patent/EP4375512A1/fr
Pending legal-status Critical Current

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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
    • 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
    • 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
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/0018—Controlling processes, i.e. processes to control the operation of the machine characterised by the purpose or target of the control
    • A47L15/0021—Regulation of operational steps within the washing processes, e.g. optimisation or improvement of operational steps depending from the detergent nature or from the condition of the crockery
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/42—Details
    • A47L15/4214—Water supply, recirculation or discharge arrangements; Devices therefor
    • A47L15/4225—Arrangements or adaption of recirculation or discharge pumps
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L2401/00—Automatic detection in controlling methods of washing or rinsing machines for crockery or tableware, e.g. information provided by sensors entered into controlling devices
    • A47L2401/08—Drain or recirculation pump parameters, e.g. pump rotational speed or current absorbed by the motor
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L2501/00—Output in controlling method of washing or rinsing machines for crockery or tableware, i.e. quantities or components controlled, or actions performed by the controlling device executing the controlling method
    • A47L2501/05—Drain or recirculation pump, e.g. regulation of the pump rotational speed or flow direction
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2103/42—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers related to filters or pumps
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
    • D06F2105/06—Recirculation of washing liquids, e.g. by pumps or diverting valves
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
    • D06F2105/08—Draining of washing liquids
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F33/00—Control of operations performed in washing machines or washer-dryers 
    • D06F33/30—Control of washing machines characterised by the purpose or target of the control 
    • D06F33/32—Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/08—Liquid supply or discharge arrangements
    • D06F39/083—Liquid discharge or recirculation arrangements
    • D06F39/085—Arrangements or adaptations of pumps

Definitions

  • the invention relates to a pumping device, a household appliance with a pumping device and a method for operating a pumping device.
  • a duo filter housing equipped with two pumps can be used for flooding and pumping out. By controlling the respective pump, one of the two pump functions can be carried out.
  • a pump can be used in conjunction with an actively controlled water switch to direct the flow to various pressure nozzles.
  • electrically switching valves can be used to supply various water routes.
  • the invention has the object of creating an improved pumping device, an improved household appliance with a pumping device and an improved method for operating a pumping device. According to the invention, this object is achieved by a pumping device, a household appliance with a pumping device and a method for operating a pumping device with the features of the main claims. Advantageous embodiments and further developments of the invention emerge from the following subclaims.
  • the advantages achievable with the invention include a reduction in costs and a reduction in the required installation space as well as relatively low assembly effort.
  • a pumping device for conveying a fluid for a household appliance comprises a device housing for receiving and directing the fluid, wherein the device housing is formed with at least one inlet opening for letting in the fluid and at least one first pressure port and a second pressure port for discharging the fluid.
  • the pumping device comprises a rotary wheel device arranged in the device housing, which can be driven by means of a drive and is designed to control a fluid flow of the fluid through the device housing by means of a rotary movement, and at least one switching unit that is movable by means of the fluid flow.
  • the switching unit is movably attached to the device housing and is designed to close the first pressure port or the second pressure port.
  • the household appliance can be, for example, a washing machine, a dishwasher or a washer-dryer.
  • water and additionally or alternatively cleaning solution can be passed through the household appliance by means of a pump.
  • the pump device presented here comprises at least two pressure nozzles, via which, for example, water can be pumped out of the device housing.
  • the at least two pressure nozzles can be positioned largely arbitrarily on the device housing, as long as they can be closed by means of the switching unit.
  • the switching unit can also be referred to below as a switching body.
  • the switching unit can be, for example, a lever mounted so that it can rotate about an axis, which can be rotated by the fluid flow, for example, about this axis and thus moved in front of one of the openings of the pressure nozzles, while the other pressure nozzle can be released for the flow of the fluid with the same movement.
  • the fluid flow can be generated or controlled by means of the rotary wheel device.
  • the rotary wheel device can be, for example, an impeller attached to the device housing with, for example, four blades arranged at equal intervals around a rotary wheel axis, whereby the rotary wheel device can be driven, for example, by a drive of the household appliance.
  • the rotary wheel device can be rotatable in different directions, whereby a fluid flow can be generated which, depending on the direction of rotation, can hit the switching unit from different angles and move it accordingly in one direction or the other. Since only the volume flow of the fluid is used to switch from one pressure port to the other, it is advantageously not necessary to design the switching body as a floating component. This means that the device can be manufactured cost-effectively and operated reliably. This mechanism also creates further degrees of freedom in the position and orientation of the housing and additionally or alternatively the outlets. Consequently, a horizontal arrangement of the housing part comprising the switching unit would be possible, for example.
  • the switching unit can be pivoted about an axis, wherein the axis can be aligned perpendicular to a fluid flow that can be effected by the rotary wheel device.
  • an axis can, for example, be formed as part of the switching unit or the switching unit can be connected to a rotation axis of the rotary wheel device.
  • the axis can be aligned in such a way that attached wings or arms of the switching unit can be gripped by the fluid flow in order to move the switching unit according to a flow direction of the fluid flow.
  • the switching unit can therefore be manufactured cost-effectively with only a few components.
  • the switching unit can be designed as a two-sided lever.
  • the switching body when the air flows onto a surface of the switching unit according to the principle of the two-sided lever, the switching body can be rotated around its central axis and block one pressure port and release a second one.
  • a two-sided lever can be manufactured simply and cost-effectively.
  • the switching unit can be designed as a one-sided lever and coupled to the rotary wheel device.
  • the switching unit can be shaped like a circle segment and coupled to a rotary wheel axis of the rotary wheel, so that the rotary wheel axis can correspond to the axis of the switching unit.
  • the variation of the speed of the impeller and the selection of the line cross-section can be used to control the flow rate.
  • the flow onto a surface of the switching unit which is constructed according to the principle of a one-sided lever, can trigger its movement.
  • the direction of movement of the switching unit can depend on the direction of rotation of the impeller. This can be done by a controlled drive. For example, one outlet nozzle can be blocked and the second one can be unlocked.
  • the design of the switching unit as a one-sided lever coupled to the rotary wheel device offers the advantage that the pump device can be designed in a particularly space-saving manner.
  • the pumping device can comprise at least one stop for stopping a movement of the switching unit.
  • the stop can in particular be arranged at a predetermined position on the device housing.
  • the pumping device can comprise two stops, which can be arranged, for example, as small elevations or noses on the device housing in the area of the switching unit. The stops can protrude away from the device housing into the space in which the switching unit is arranged.
  • the switching unit can, for example, move freely about its axis up to the stops on the peripheral surface. This offers the advantage that, with a corresponding flow pressure of the fluid, the switching unit can only be moved to a predefined position in which one of the pressure ports can be released for the fluid and the other can be closed.
  • the device housing can comprise a valve housing for receiving the switching unit and a pump housing formed separately from the valve housing for receiving the rotary wheel device, wherein the pressure ports can be arranged on the valve housing.
  • the pump housing and the valve housing can be fluidically connected to one another, for example by means of a Such a fluidic connection section can already be formed with two different fluid channels, so that a fluid flow controlled by the rotating device can advantageously be pre-directed in a certain direction before it hits the switching unit. In this way, the reliability of the pump device can advantageously be increased.
  • the pump device can have a spring element for pre-tensioning the switching unit.
  • the switching unit can be specifically adjusted in its deflection by the volume flow.
  • the volume flow that goes through one of the pressure ports can thus control the switching unit in its deflection and thus, if necessary, vary the opening of an outlet or open up further openings. This advantageously allows switching to be implemented even with small volume flows.
  • the device housing can be shaped in such a way that there is a defined, in particular constant, distance between the rotary wheel device and a housing wall of the device housing.
  • the rotary wheel device and the part of the device housing surrounding it can be coordinated in terms of their dimensions so that there can be a defined gap between the impeller and the housing wall.
  • the distance can be in the range of 0.5 cm to 5 cm, for example.
  • a household appliance is presented with a variant of the previously presented pump device and with a drive for driving the rotary wheel device.
  • This combination offers the advantage that all of the previously mentioned advantages can be optimally implemented.
  • a method for operating a variant of the previously presented pump device comprises a step of introducing the fluid into the device housing and a step of controlling the rotary wheel device in order to generate the fluid flow in order to move the switching unit and to close the first pressure port or the second pressure port.
  • the device described here can be used in connection with a commercial or professional device, for example a medical device such as a cleaning or disinfection device, a small sterilizer, a large-scale disinfector or a container washing system.
  • a medical device such as a cleaning or disinfection device, a small sterilizer, a large-scale disinfector or a container washing system.
  • the approach presented here also creates a device that is designed to carry out, control or implement the steps of a variant of a method presented here in corresponding devices.
  • This embodiment of the invention in the form of a device can also solve the problem underlying the invention quickly and efficiently.
  • the device can be designed to read in input signals and to determine and provide output signals using the input signals.
  • An input signal can, for example, represent a sensor signal that can be read in via an input interface of the device.
  • An output signal can represent a control signal or a data signal that can be provided at an output interface of the device.
  • the device can be designed to determine the output signals using a processing rule implemented in hardware or software.
  • the device can comprise a logic circuit, an integrated circuit or a software module and can be implemented, for example, as a discrete component or be comprised of a discrete component.
  • a computer program product or computer program with program code that can be stored on a machine-readable carrier or storage medium such as a semiconductor memory, a hard disk memory or an optical memory. If the program product or program is executed on a computer or a device, the program product or program can be used to carry out, implement and/or control the steps of the method according to one of the embodiments described above.
  • FIG. 1 shows a schematic representation of a household appliance 100 according to an embodiment.
  • the household appliance 100 is designed as a washing machine by way of example only.
  • the household appliance can also be designed as a washer-dryer or dishwasher, for example.
  • the household appliance 100 comprises, for example, a rotating washing drum for cleaning textiles 102 arranged in it.
  • a fluid 105 which in this embodiment is water and additionally or alternatively cleaning liquid, for example a detergent dissolved in water, can be introduced into the washing drum.
  • the household appliance 100 is designed to perform various functions, such as pumping out and reintroducing the water and, for example, flooding.
  • the household appliance 100 comprises a pumping device 110, which can be driven, for example, by means of a drive 115 of the household appliance 100.
  • the pumping device 110 is designed to pump the fluid 105 into the washing drum or into the drain via either a first pressure port 121 or a second pressure port 122.
  • the first pressure port 121 can lead back into the washing drum and the second pressure port 122 can be used to pump into the drain.
  • the pumping device 110 comprises a switching unit that can be switched by means of a rotary wheel device for opening or closing one of the two pressure ports 121, 122.
  • the pumping device 110 shown here is described in the following Figures 2 to 4 described in more detail.
  • FIG. 2 shows a schematic cross-sectional view of a pumping device 110 according to an embodiment.
  • the pumping device 110 shown here corresponds to or is similar to the pumping device described above and is designed to convey a fluid for a household appliance as described above.
  • the pump device 110 comprises a device housing 200 for receiving and guiding the fluid, wherein the device housing 200 is formed with an inlet opening 205 for letting in the fluid and a first pressure nozzle 121 and a second pressure nozzle 122 for discharging the fluid.
  • the pump device 110 further comprises a rotary wheel device 210 arranged in the device housing 200, which can be driven by means of a drive and is designed to control a fluid flow 215 of the fluid through the device housing 200 by means of a rotary movement.
  • a switching unit 220 is movable by means of the fluid flow 215, which is movably attached to the device housing 200 and is designed to close the first pressure port 121 or the second pressure port 122.
  • the device housing 200 forms a valve housing 225 with a circular cross-section for accommodating the switching unit 220, on which the pressure ports 121, 122 are arranged.
  • the pressure ports 121, 122 lead vertically and parallel to one another away from the valve housing 225.
  • the two pressure ports can be positioned anywhere on the valve housing.
  • the valve housing 225 is fluidically connected, for example, via a connecting section 230 to a pump housing 235, which is also circular in cross-section.
  • the pump housing 235 is designed to accommodate the rotary wheel device 210.
  • the rotary wheel device 210 is designed as an impeller with a centrally arranged rotary wheel axis 240, which is fastened to the pump housing, for example, and on which four rotary wheel blades 245a, 245b, 245c, 245d are arranged at an equal distance from one another.
  • the rotary wheel device 210 is smaller than a cross section of the pump housing 235, so that there is a defined distance or gap between the rotary wheel blades 245a, 245b, 245c, 245d and a housing wall of the pump housing 235 in order to prevent blockages from occurring when foreign bodies penetrate.
  • the rotary wheel device 210 can be rotated in two different directions by means of a drive of the household appliance (not shown in this figure), so that the fluid flow 215 within the pump housing can be directed, for example, clockwise or counterclockwise.
  • the fluid flow 215 can be conveyed through the connecting section 230 into the valve housing 225, wherein a blocking element 250 arranged in the connecting section 230 is designed, for example, to guide the fluid flow 215 laterally past the blocking element 250 depending on the respective flow direction.
  • a main flow of the fluid flow 215 can be introduced in one embodiment into a partial area of the valve housing 225, on which the pressure nozzle 121, 122 is also arranged, via which the fluid is to be discharged again.
  • the fluid flow in the illustration shown here is rotating clockwise in the pump housing 235, whereby it is guided past the blocking element 250 on the left side in the illustration shown here and from there flows through the valve housing 225 into the first pressure port 121, which in this illustration is also arranged on the left side and above the connecting section 230.
  • the switching unit 220 which in this exemplary embodiment is arranged in the valve housing 225, can be moved by means of the fluid flow 215.
  • the switching unit 220 is designed as a two-sided lever that can be pivoted about an axis 255.
  • the axis 255 is aligned perpendicular to the fluid flow, for example. If the fluid flow 215 coming from the pump housing 235 in this exemplary embodiment hits the pivotable lever, the lever can be rotated about the axis 255 by means of the flow pressure until the rotational movement is stopped by a stop 260a, 260b arranged purely by way of example on the valve housing 225.
  • the pump device 110 within the valve housing 225 comprises, for example, a first stop 260a, which in this exemplary embodiment is arranged opposite the first pressure port 121, and an exemplary second stop 260b, which in this exemplary embodiment is arranged opposite the second pressure port 122. If the switching unit 220 rests against the first stop 260a, one half of the valve housing 225, in which the second pressure port 122 is arranged, is closed and the fluid flow can be conveyed from the pump housing 235 to the first pressure port 121.
  • the switching unit 220 can also be moved in the opposite direction, so that the lever rotates about the axis 255 until it rests against the second stop 260b and thereby closes the first pressure port 121 and opens the second pressure port 122 for the fluid flow 215.
  • the pump device 110 essentially consists of a pump assembly and a valve assembly. Furthermore, a switching unit, which can also be referred to as a valve switching body, and, for example, a housing closure for the valve housing 225 are required to implement the function. In the pump housing 235, a lock for directing the medium is attached, for example, on the side of the connecting section 230.
  • the flow rate is controlled by varying the speed of the impeller and limited to its maximum by selecting the line cross-section.
  • a barrier directs the volume flow essentially depending on the direction of rotation of the impeller into one of the two pressure ports of the pump housing. This is achieved by controlling a regulated drive.
  • Appropriate dimensioning of the gap between the pump housing 235 and the impeller as well as between the housing and the switching body prevents blockages from occurring when foreign bodies penetrate.
  • surfaces are provided on which a positive connection is created, which minimizes leaks in the non-flowing water path.
  • a switching body When the flow hits a surface according to the principle of the two-sided lever, in one embodiment a switching body is rotated about its central axis and blocks one pressure port 121, 122 and releases a second one.
  • the switching body rests on the inner sides of the valve housing 225 in every position and is guided by them.
  • the switching body can be moved freely about the axis 255 up to the stops 260a, 260b on the peripheral surface. Since the volume flow is used for switching, the switching unit 220 is not designed as a floating component. This mechanism creates further degrees of freedom in the position and orientation of the valve housing 225 and/or the outlets. Consequently, in another embodiment a horizontal arrangement of the valve housing would be possible.
  • the two pressure ports can be positioned as desired on the valve housing.
  • the Figures 3a and 3b each show a schematic cross-sectional view of an embodiment of a pump device 110 with a spring element 300.
  • the pump device 110 shown here corresponds to or is similar to the pump device described in the previous figures and is designed only as an example with a valve housing 225 comprising the switching unit 220 and with a pump housing 235 comprising the rotary wheel device 210.
  • the pressure nozzles 121, 122 extending from the valve housing 225 are in this embodiment not arranged opposite the connecting section 230, but substantially horizontally thereto on the valve housing 225.
  • the rotary wheel device 210 is driven to rotate, for example, anti-clockwise.
  • the resulting fluid flow 215 presses a part of the switching unit 220 arranged on the right-hand side in the illustration shown upwards against the spring element 300, whereby the switching unit 220 as a whole is aligned approximately horizontally.
  • the first pressure port 121 is arranged, for example, above the two-sided lever of the switching unit 220 and is therefore closed by it, while the second pressure port 122 is partially open.
  • the rotary wheel device 210 rotates clockwise, for example, and the fluid flow 215 presses against the part of the switching unit 220 arranged on the left side in the illustration shown here, on which no spring element is arranged. Due to the pressure of the fluid flow 215, this side of the switching unit 220 is therefore pushed upwards so far that the first pressure port 121 is exposed and the second pressure port 122 is closed.
  • the switching unit 220 is therefore designed as a two-sided lever, which can only be preloaded with a spring element 300, for example.
  • the switching unit 220 can be specifically adjusted in its deflection by the volume flow.
  • the fluid flow 215, which passes through one of the pressure ports of the connecting section 230, can thus control the deflection of the switching body and thus, for example, vary the opening of an outlet or open up further openings.
  • FIG 4 shows a schematic cross-sectional view of a pumping device 110 according to an embodiment.
  • the pumping device 110 shown here corresponds to or is similar to the pumping device described in the previous figures.
  • the rotary wheel device 210 and the switching unit 220 are accommodated in just one common chamber in the device housing 200 from which the first pressure port 121 and the second pressure port 122 branch off.
  • the switching unit 220 is designed as a one-sided lever and coupled to the rotary wheel device 210.
  • the switching unit 220 is shaped like a segment of a circle, with the axis 255 of the switching unit 220 corresponding to the rotary wheel axis 240.
  • a rotational movement of the switching unit 220 is thus possible both by means of the fluid flow 215 and by the inherent movement of the rotary wheel axis 240.
  • the movement of the switching unit 220 can be stopped in this embodiment by two stops 260a, 260b arranged laterally next to the pressure ports 121, 122.
  • the pump device 110 in this embodiment consists of a pump housing in which a switching element is housed.
  • the switching element is connected to the housing via a connecting element, for example the axis 255 or the rotary wheel axis 240.
  • the variation of the speed of the impeller and the selection of the line cross-section are used to control the flow rate.
  • the flow onto a surface of the switching unit 220 which is based on the principle a one-sided lever, triggers its movement.
  • the direction of movement of the switching body depends on the direction of rotation of the impeller. This is done by a controlled drive.
  • One outlet connection is blocked and the second is opened. To prevent blockages in the system, the gaps between the components are adapted to the requirements.
  • the switching body in one embodiment is designed in such a way that a positive connection is created.
  • Figure 5 shows a flow chart of an embodiment of a method 500 for operating a pumping device.
  • the method 500 can be carried out using a pumping device as described in the previous figures.
  • the method 500 comprises a step 505 of introducing the fluid into the device housing and a step 510 of controlling the rotary wheel device in order to generate the fluid flow in order to move the switching unit and to close the first pressure port or the second pressure port.
  • Figure 6 shows a block diagram of an embodiment of a device 600 for operating a pump device according to a variant presented here.
  • the device 600 comprises an introduction unit 605 for controlling the introduction of a fluid.
  • the device 600 comprises a control unit 610 for controlling the rotary wheel device in a predetermined direction of rotation.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
EP23204614.4A 2022-11-23 2023-10-19 Dispositif de pompage, appareil ménager comprenant un dispositif de pompage et procédé de fonctionnement d'un dispositif de pompage Pending EP4375512A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102022131010.8A DE102022131010A1 (de) 2022-11-23 2022-11-23 Pumpvorrichtung, Haushaltsgerät mit Pumpvorrichtung und Verfahren zum Betreiben einer Pumpvorrichtung

Publications (1)

Publication Number Publication Date
EP4375512A1 true EP4375512A1 (fr) 2024-05-29

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Family Applications (1)

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EP23204614.4A Pending EP4375512A1 (fr) 2022-11-23 2023-10-19 Dispositif de pompage, appareil ménager comprenant un dispositif de pompage et procédé de fonctionnement d'un dispositif de pompage

Country Status (2)

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EP (1) EP4375512A1 (fr)
DE (1) DE102022131010A1 (fr)

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US4679983A (en) * 1983-05-11 1987-07-14 Ford Motor Company Water pump for window washer unit
DE19745737A1 (de) * 1996-10-28 1998-05-07 Daewoo Electronics Co Ltd Warmwasser-Umwälzpumpe zum Liefern von Warmwasser selektiv durch ein Paar von Rohren
WO1999027836A1 (fr) * 1997-12-03 1999-06-10 Samsung Electronics Co., Ltd Lave-vaisselle capable d'injecter et d'evacuer de l'eau stockee dans un bac de recuperation au moyen d'un seul moteur
EP1403521A1 (fr) * 2002-09-26 2004-03-31 Nidec Shibaura Corporation Pompe à une entreé et à deux sorties
CN107588202A (zh) * 2016-07-08 2018-01-16 格兰富控股联合股份公司 泵机组

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