Classifications

• • 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
• • 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
  • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
  • D06F39/10—Filtering arrangements

Definitions

• the present invention relates to a laundry care device with a pump control.
• Conventional laundry care devices usually have a pumping system for large amounts of charge, through which washing liquid is pumped out of the tub and subsequently returned to the tub.
• conventional laundry care devices also have an evacuation system.
• Pumps are required for the pump-around system and the pump-down system in order to ensure effective pumping over of the wash fluid in the laundry-care device, or to ensure effective pumping out of the wash fluid from the laundry-care device.
• Conventionally used centrifugal pumps have in a suction chamber on filter elements which are adapted to filter out in the washing liquid entrained impurities from the washing liquid, whereby the function of the pump can be ensured.
• DE 103 39 130 A1 a household appliance with a circulating pump and a drain pump is shown, which can be controlled by a central control unit.
• a laundry care device having a pump for pumping washing liquid
• the pump comprises a suction chamber, which has a suction port for fluidly connecting to a suction line
• the pump comprising a pumping pressure chamber, which a Umpump umanstutzen for fluidischen Compressing with a Umpump réelletechnisch
• the Umpump réellehunt is fluidly connected to the suction chamber by a UmpumpsaugENS
• the pump comprises a Abpump réellehunt having a Abpump réellestutzen for fluidly connecting to a Abpump réelle
• the Abpumptikformat is connected to the suction chamber by a AbpumpsaugVIS
• the pump comprises a first pump motor for pumping the washing liquid from the pumping pressure chamber and a second pump motor for pumping the washing liquid from the pumping pressure chamber, and a pump controller for Controlling the first and second pump motors, wherein the recirculation suction connection and the pump down suction
• the technical advantage is achieved that can be effectively pumped by the other of the two suction connections and thus removed by the fluidically coupled to each other UmpumpsaugENS and AbpumpsaugENS attached to one of the two suction connections contaminants.
• the impurities entrained in the washing liquid such as eg lint bales and / or foreign bodies, can be pumped out by means of the respective pump motor through the respective suction connection and through the respective pressure chamber.
• the pumping pressure chamber and the pumping pressure chamber are each independently fluidly connected to the suction chamber so that the flow paths do not interfere with each other and a cleaning function of the flow paths in a filter element of the suction chamber is not enabled.
• a sieve-like filter element is used, which indeed filters out contaminants such as foreign bodies or lint deposits and thus enables pump protection, but often causes frequent maintenance intervals for cleaning the filter element.
• the pump according to the invention has a filter element with a flow guide, wherein the flow paths mutually influence one another in time, whereby a mutual cleaning of the flow paths is made possible.
• the deposition of lint and the associated complete clogging of the flow paths and the resulting expensive cleaning of the filter element can be avoided.
• the filtering out of large foreign bodies to protect the pump impellers, or to prevent pump motor blockages must be further ensured.
• the filter element should in particular be designed in such a way that particularly narrow flow cross-sections of the recirculation suction connection and the recirculation pressure chamber are cleaned in the pumping operation of the pump.
• the flow cross-sections in the filter element are designed so that the suction of UmpumpsaugENS and the AbpumpsaugENS are arranged close to each other, and a suction-side obstruction of the UmpumpsaugENS can be eliminated by a timed pump down through the Abpumpsaugthetic.
• Another constructive way to use this cleaning function especially for the pumping system of the pump is to position the suction port of UmpumpsaugENS in a region of the suction chamber, in particular in the filter element at which a high flow rate when pumping through the AbpumpsaugENS occurs. If, for example, perpendicular from the pump down pressure connection through the recirculation suction connection during a Umpumpvorgangs is sucked, then the UmpumpsaugENS is cleaned in a subsequent Abpumpvorgang by Abpump réelletagen again of impurities.
• washing liquid can be conveyed either through the pumping pressure chamber into the pumping down pressure line or through the pumping pressure chamber into the pumping pressure line.
• a fluidic connection of the pumping pressure chamber and the pumping pressure chamber to the suction chamber there is the risk that impurities may accumulate on the fluidic connection between the suction chamber and the pumping pressure chamber, in particular in the filter element, and block the fluidic connection. Due to a quasi-parallel suction-side flow guidance in the pump, contaminants accumulated at this connection can be removed during the pumping-down process by the pump-down pressure chamber into the pump-down pressure line.
• This novel cleaning concept of the pumped circulation system can be realized for the pumped circulation in that the flow cross sections of the pumpdown suction connection and the pumpdown pressure chamber are generally larger than the flow cross sections of the pumped pumping connection and the pumping pressure chamber.
• This cleaning effect can avoid service calls and allow washing machines with a pumping system to be similar in quality to washing machines equipped with a pump-down system.
• the pump of the present invention makes it possible to effectively remove the accumulated impurities from the pump, particularly at the suction side of the pumping circuit, whereby clogging of the suction side flow paths or blockage of impeller of the first or second pump motor with impurities can be prevented.
• This creates the possibility of an almost completely maintenance-free pump with a self-cleaning function.
• a lower likelihood of service calls in complete pump blockage is given by massive accumulation of foreign bodies or lint, especially since the user can fix blockages on the filter element itself.
• a laundry care appliance is understood to mean a device which is used for laundry care, such as e.g. a washing machine or a tumble dryer.
• a laundry care appliance is understood as a household laundry care appliance. So a laundry care device, which is used in the context of household management, and is treated with the laundry in normal household quantities.
• the UmpumpsaugENS comprises Umpumpsaugrohr, the Umpumpsaugrohr on a side facing the suction chamber Umpumpsaugrohreingang, and the AbpumpsaugENS a Abpumpsaugrohr, the Abpumpsaugrohr on a side facing the suction chamber has a Abpumpsaugrohreingang, the Abpumpsaugrohreingang with the Umpumpsaugrohreingang is fluidly coupled, wherein the pump controller is configured to activate one of the two pump motors in the activation period to pump washing liquid from the suction chamber through the filter element and through one of the suction tube and one of the suction tubes in one of the pressure chambers, and wherein the activated pump motor is formed during the Aktiv mecanicszeitabterrorisms aspirate washing liquid from the other intake port entrance to the other intake port entrapped impurities by the Fil terelement and pump through the one suction tube inlet and a suction tube into the one pressure chamber.
• the technical advantage is achieved that the Umpumpsaugrohr a particularly effective fluidic connection between the suction chamber and the Umpump réellesch, and that a particularly effective fluidic connection between the suction chamber and the Abpump réellehunt is ensured by the Abpumpsaugrohr.
• the pump control can be used to ensure that impurities deposited on the exhaust pump inlet or pumped-circulation air inlet can be effectively removed or pumped.
• the Umpumpsaugrohreingang can either be designed as a transverse bore or flanged angle piece or Umpumpsaugrohr and Abpumpsaugrohr are arranged for example parallel to each other, the Abpumpsaugrohreingang and Umpumpsaugrohreingang are aligned with each other.
• the suction-side flow paths are fluidically coupled in the filter element such that a self-cleaning function of the non-activated intake track can be made possible.
• the dissolved impurities are conveyed either during Abpump réelle by Abpump réelle from the device or are transported during the Umpump réelle by Umpumpdruckhunt at least again in the washing drum.
• the Umpumpsaugrohr and the Abpumpsaugrohr are at least partially arranged in parallel, and / or wherein the Umpumpsaugrohreingang and Abpumpsaugrohreingang facing each other, and / or wherein the Umpumpsaugrohreingang is arranged laterally adjacent to the Abpumpsaugrohreingang in the suction chamber, and wherein the Umpumpsaugrohr and the Abpumpsaugrohr include in particular an angle.
• the technical advantage is achieved that by the at least partially parallel arrangement of the Umpumpsaugrohrs and Abpumpsaugrohrs, that the Umpumpsaugrohreingang and Abpumpsaugrohreingang facing each other, that by the lateral arrangement of Umpumpsaugrohreingangs next to the Abpumpsaugrohreingang, and / or that by the angled Arrangement of the two suction pipes to each other, the two Saugrohrein réelle in spatial proximity to each other are arranged in a particularly advantageous fluidic manner within the pump. In this way, it is possible to ensure that impurities accumulated on the correspondingly inactive intake tube inlet can be removed particularly effectively during a pumping-down process or during a pump-over process.
• the Umpumpsaugrohreingang is fluidly coupled to the Abpumpsaugrohreingang to ensure a cleaning function of Umpumpsaugrohreingangs or Abpumpsaugrohreingangs.
• the pumping suction on a Abpumpdruckhunt side facing a Abpumpsaugrohrausgang the Abpumpsaugrohr between Abpumpsaugrohreingang and Abpumpbuchauseingang a Abpumpsaugrohrö Stamm, wherein the Abpumpsaugrohrö Stamm is fluidly connected to the Umpumpsaugrohreingang the Umpumpsaugrohr.
• the technical advantage is achieved that a particularly effective fluidic coupling between the Umpumpsaugrohr and the Abpumpsaugrohr can be made by connected to the Umpumpsaugrohreingang the Umpumpsaugrohrs Abpumpsaugrohrö Stamm the Abpumpsaugrohres.
• the Umpumpsaugrohr is fluidly connected to the Abpumpsaugrohr, so that during a Umpumpvorgangs scrubbing liquid is pumped in sections through the Abpumpsaugrohr, and the pumped washing liquid is then pumped through the Abpumpsaugrohrö réelle through the Umpumpsaugrohreingang in the Umpumpsaugrohr.
• the recirculation suction connection comprises a pumped-circulation chamber opening, which surrounds the suction chamber and fluidly connecting the pumped-around pressure chamber, the pumped-down suction connection comprising a pump down suction tube having a pumped suction tube inlet and a pumped suction tube exit, wherein a number of Abpumpsaugrohro réelleen are arranged between the Abpumpsaugrohreingang and the Abpumpsaugrohraususausgang, wherein the Abpumpsaugrohro réelleen with the Umpumpdruckbibö Maschinen GmbH are fluidly coupled.
• the pump controller is configured to activate the first pump motor in the activation period to pump wash liquid from the suction chamber through the pump down suction into the pump down pressure chamber, the first pump motor being configured to draw wash liquid from the pump over suction connection during the activation period.
• the technical advantage is achieved that effectively removed by the activation of the first pump motor by the pump control during the Abpumpvorgangs of washing liquid through the AbpumpsaugVIS in Abpump réellehunt, deposited on the Umpumpsaugtagen impurities and the Abpump réellehunt can be supplied to these then via the pumped-down pressure line from to transport the laundry care device.
• the pump controller is configured to activate the second pump motor in the activation period to pump washing liquid from the suction chamber through the recirculation suction connection to the recirculation pressure chamber, the second pump motor being configured to draw washing liquid from the exhaust suction connection during the activation period. in order to pump impurities deposited on the exhaust pumping connection through the recirculation suction connection into the pumping-over pressure chamber.
• the filter element has a Abpumpströmungsweg and a Umpumpströmungsweg, wherein the Abpumpströmungsweg fluidically with the suction nozzle and the AbpumpsaugENS is connected, wherein the Umpumpströmungsweg is fluidly connected to the suction nozzle and the UmpumpsaugENS, and wherein the respective pump motor is adapted to solve in the respective flow path recorded impurities during the activation period and to pump through the respective suction connection in the respective pressure chamber.
• the technical advantage is achieved that a particularly effective filtering, or retention of impurities from the washing liquid is made possible by the different flow paths in the filter element, which is accommodated in the suction chamber.
• the amount of the impurities, which are conveyed from the suction chamber into the pumping pressure chamber or pumping pressure chamber can be reduced.
• Non-pumpable or umpumpbare foreign bodies or fluff bales are retained on the filter element, low deposits are filtered out, and rinsed by the self-cleaning effect in the function switching between pumping and pumping and then pumped out of the pump.
• the filter element comprises a foreign body trap for removing contaminants from the washing liquid, wherein the foreign body trap comprises a flow-extending plate, which in particular has a front edge in the flow direction, wherein the impurities are attachable to the front edge or the foreign body trap comprises in particular a receiving area for receiving the contaminants.
• a foreign body trap in contrast to other filter elements, such as a sieve, is not clogged by the accumulated impurities, whereby a periodic cleaning of the foreign body trap over the device life of the laundry care device is not necessary because the foreign body trap is designed in that it retains foreign matter over the life of the device, but can not clog it with lint, as can happen with a sieve-like filter.
• Impurities removed from the washing liquid by the foreign body trap can be pumped out of the pump during a pumping-down process by the pumping-down pressure chamber and by the pumping-down pressure line.
• Pumping directional plate with a leading edge in the pumping direction allows for effective attachment of contaminants.
• the front edge has a low flow resistance, whereby the liquid flow of the pumped by the pump washing liquid is not significantly affected by the plate, but foreign bodies can be successfully deposited.
• This filter function can also be achieved by suction pipes, which allow suction from a collecting area for foreign bodies or other contaminants.
• suction pipes which allow suction from a collecting area for foreign bodies or other contaminants.
• the foreign body trap may comprise a receiving area, in which impurities may settle, in particular by a flow calming of the washing liquid, and may thereby be absorbed in the receiving area. Due to the concept, foreign bodies or lint-hair accumulations can be collected over a longer maintenance interval or over the entire life of the device in this receiving area.
• the first pump motor or the second pump motor comprises an electric motor, in particular a brushless DC motor (BLDC motor), or a permanent-magnet, brushless synchronous motor, which in particular can be operated with variable speed.
• BLDC motor brushless DC motor
• a permanent-magnet, brushless synchronous motor which in particular can be operated with variable speed.
• the technical advantage is achieved that by the first pump motor and by the second pump motor an effective pumping of washing liquid from the Umpumpdruckhunt in the Umpumpyaktechnisch or an effective pumping out of washing liquid from the pumping pressure chamber is made possible in the pumping pressure line.
• this drive concept can be increased by increasing the speed pump power for the pump motors to allow in the case of suction-side blockages on the filter element, a cleaning or rinsing through increased flow rates.
• the object is achieved by a method for pumping washing liquid in a laundry care apparatus, comprising a pump for pumping washing liquid, the pump comprising a suction chamber having a suction port for fluidly connecting to a suction line, wherein the pump comprises a pumping pressure chamber having a pumping pressure port for fluidly connecting to a pumping pressure line, the pumping pressure chamber being fluidly connected to the suction chamber by a pumping suction connection, the pump comprising a pumping pressure chamber having a pumping pressure port for fluidly connecting to a pumping pressure line;
• Abpumpdruckbib is connected to the suction chamber by a AbpumpsaugVIS, said pump having a first pump motor for pumping the washing liquid from the Abpump réellesch and a second pump motor for pumping the washing liquid from the Umpumpdruckbib, and a pump controller for controlling the first and second pump motor, wherein the AbpumpsaugENS is fluidly coupled to the UmpumpsaugENS in the suction chamber, wherein
• the technical advantage is achieved that by the fluidic coupling of UmpumpsaugVIS and the AbpumpsaugENS accumulated during the activation period at one of the suction impurities through the other of the suction in the associated pressure chamber and then pumped out of the laundry care device or can be pumped in the laundry care device, so that the accumulated impurities not on one of the two pump motors, eg on one of the impellers of the pump motors, can attach.
• the method comprises activating the first pump motor during the activation period, to remove washing liquid from the suction chamber through the filter element and through the Pumping Abpumpsaugtagen in the Abpump réellehunt, wherein the first pump motor is adapted to suck during the activation period washing liquid from the UmpumpsaugENS to pump at the Umpumpsaugtagen deposited impurities through the filter element and the Abpumpsaugtagen in Abpump réellehunt.
• the method comprises activating the second pump motor during the activation period to pump wash liquid from the suction chamber through the filter element through the recirculation suction connection to the recycle pressure chamber, wherein the second pump motor is configured to aspirate wash liquid from the evacuation suction connection during the activation period to pump impurities deposited at the exhaust pumping connection through the filter element and through the recirculation suction connection into the recompression pressure chamber.
• Fig. 1 is a schematic view of a laundry care device
• FIG. 2 shows a schematic view of a pump of the laundry care device in a sectional view according to an embodiment
• FIG. 3 is a schematic view of a pump of the Wäschewitetzs in sectional view according to a further embodiment; and 4 shows a sequence of a method for pumping washing liquid in a laundry care appliance.
• Fig. 1 shows a schematic view of a general laundry care device 100, such as e.g. a washing machine.
• the laundry care device 100 comprises an induction bowl 101, into which detergent or other liquid substances can be introduced.
• the laundry care appliance 100 comprises a door 103 for loading the laundry care appliance 100 with laundry.
• Fig. 2 shows a schematic view of a pump of Wäschenostiticians in a sectional view according to an embodiment.
• the laundry care device 100 comprises a pump 105 for pumping washing liquid.
• the pump 105 is fluidly connected to a suction line to draw washing liquid through the suction line.
• the pump 105 is connected to a pump-down pressure line of the laundry-care device 100 to pump washing liquid out of the laundry-care device 100 through the pump-down pressure line.
• the pump 105 is connected to a pumping-around pressure line of the laundry-care device 100 to pump washing liquid in the laundry-care device 100, that is, to pump the washing liquid from a tub of the laundry-care device 100 through the pumping-around pressure line, and to supply the pumped washing liquid to the tub again.
• the suction line, Abpump réelletechnisch and Umpumpdrucktechnisch are not shown in Fig. 2.
• the pump 105 comprises a suction chamber 107, which has a suction nozzle 109, which in turn can be fluidly connected to the suction line.
• the pump 105 further includes a Abpumpdruckhunt 1 1 1 which has a Abpump réellestutzen 1 13, which in turn can be fluidly connected to the Abpump réelle effet.
• the pump 105 further comprises a pumping pressure chamber 1 15, which has a pumped-up pressure port 1 17, which in turn can be fluidly connected to a pumping pressure line Umpumpsystems a.
• a filter element for filtering washing liquid is arranged, wherein the filter element is not shown in Fig. 2.
• the suction chamber 107 is connected to the Abpump réellesch 1 1 1 by a AbpumpsaugENS 1 19, which in particular as a Abpumpsaugrohr 121 is formed.
• the Abpumpsaugrohr 121 has on one of the Abpump réellehunt 1 1 1 side facing a Abpumpsaugrohrausgang 123 and has on a suction chamber 107 side facing a Abpumpsaugrohreingang 125.
• a Abpumpsaugrohrö réelle 127 is arranged between the Abpumpsaugrohrö réelle 127 and the Abpumpsaugrohrausgang 123 .
• the Abpumpsaugrohrö réelle 127 a number of Abpumpsaugrohrö réelleen 127, in particular two or more Abpumpsaugrohrömaschineen 127 include.
• the suction chamber 107 is fluidly connected to the Umpump réellesch 1 15 by a UmpumpsaugENS 129, wherein the UmpumpsaugENS 129 in particular a Umpump réellewaitö réelle 131 includes.
• the exhaust pump suction port 127 is structurally made smaller for retaining foreign substances and blocking accumulations of lint than the pumping pressure chamber port 131.
• the product of the number and size of the pump discharge port openings 127, the total flow area, is particularly the same
• the Abpumpsaugrohreingang 125 of the Abpumpsaugrohrs 121 should be less than or equal to the diameter of Abpumpsaugrohrausgangs 123 to filter out blockages or contaminants in front of the Abpumptiksch 1 1 1 and thus before the rotating pump impeller 131 large or smaller than the Umpumpdrucksch.
• these flow cross-sections should be kept as large as possible in order to generate no additional, larger pressure losses in the filter element.
• the geometry of the Abpumpsaugrohrs 121, the number and the inner diameter of Abpumpsaugrohro réelleen 127 are particularly advantageously determined experimentally and can then be adapted to the conditions of the pump 105.
• the construction of the laundry care device 100 in particular in the geometric Design of the drum hole as well as the cuff gap, arise for the pump different requirements with respect to the risk of contamination, especially the hair and lint loading.
• the pump 105 enables effective protection against impeller blockages of the first or second pump motor 135, 139.
• the flow paths within the pump 105 can be configured by operating the pump 105 in a pump-off function and by operating the pump 105 is achieved in a Umpumpfunktion cleaning of the filter element by rinsing filter contaminants, so that the pump 105 has a self-cleaning effect.
• An almost maintenance-free pump 105 having a self-cleaning function is provided on the filter element so that pump maintenance intervals are less frequent in the case of a clogged filter element in the event of massive lint or foreign body infestation. There is less likelihood of customer service intervention in case of complete pump blockage due to foreign matter or massive lint infestation.
• Fig. 3 shows a schematic view of a pump of Wäschenostiwies in a sectional view according to another embodiment in which suction pipes of the pump 105 are arranged parallel to each other and facing openings of the suction pipes, or facing each other.
• the laundry care device 100 comprises a pump 105 for pumping washing liquid.
• the pump 105 comprises a suction chamber 107, which has a suction nozzle 109, which in turn can be fluidly connected to a suction line.
• the pump 105 further includes a Abpumpdruckhunt 1 1 1 which has a Abpumpdruckstutzen 1 13, which in turn can be fluidly connected to a Abpumpdruckungstechnisch to pump washing liquid through the Abpump réelletechnisch from the laundry care device 100.
• the pump 105 further comprises a pumping pressure chamber 1 15, which has a pumping pressure port 1 17, which in turn can be fluidly connected to a pumping pressure line Umpumpsystems to pump wash liquid in the laundry care device 100.
• a filter element for filtering washing liquid In the suction chamber 107 is arranged a filter element for filtering washing liquid, wherein the filter element in Fig. 3 is not shown.
• the suction chamber 107 is connected to the Abpumpdrucksch 1 1 1 by a AbpumpsaugENS 1 19, which is in particular designed as a Abpumpsaugrohr 121.
• the Abpumpsaugrohr 121 has on one of the Abpump réellewait 1 1 1 side facing a Abpumpsaugrohrausgang 123 and has on a suction chamber 107 side facing a Abpumpsaugrohreingang 125.
• the suction chamber 107 is connected to the Umpump réellesch 1 15 by a UmpumpsaugENS 129, which in particular a Umpumpsaugrohr 143 includes.
• the Umpumpsaugrohr 143 has on a Umpump réellehunt 1 15 side facing a Umpumpsaugrohrausgang 145 and has on a suction chamber 107 side facing a Umpumpsaugrohreingang 147 on.
• the Abpumpsaugrohreingang 125 of Abpumpsaugrohres 123 is fluidly coupled to the Umpumpsaugrohreingang 147 of Umpumpsaugrohres 143.
• the fluidic coupling between the Abpumpsaugrohreingang 125 and Umpumpsaugrohreingang 147 is achieved in that the Umpumpsaugrohr 143 and Abpumpsaugrohr 121 are at least partially arranged in parallel and the Abpumpsaugrohreingang 125 and Umpumpsaugrohreingang 147 are arranged side by side in the suction chamber 107, or the Abpumpsaugrohreingang 125 and the Umpumpsaugrohreingang 147 facing each other.
• washing liquid is sucked into the suction chamber 107 through the suction port 109, and the sucked washing liquid is drawn through a filter element not shown in FIG Abpumpsaugrohreingang 125 pumped through the Abpumpsaugrohr 121 and through the Abpumpsaugrohrausgang 123 in a Abpumphne cardi 137 in the Abpumpdruckhunt 1 1 1 and then from the laundry care device 100.
• FIGS. 4 shows a sequence of a method 200 for pumping washing liquid in a laundry care device 100 with a pump 105 which is described in accordance with FIGS. 2 and 3.
• the method 200 comprises as a single method step the activation 201 of one of the two pump motors 135, 139 during an activation period in order to pump washing liquid from the suction chamber 107 through one of the suction connections 1 19, 129 into one of the pressure chambers.
• the activated pump motor 135, 139 is formed during the activation period washing liquid from the other suction connection 1 19, 129 sucked to the other suction connection 1 19, 129 accumulated impurities through a suction connection 1 19, 129 in a pressure chamber 1 1 1 1 To pump 1 15.
• an effective removal of impurities attached to the suction connection 19, 129 can be achieved.

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• Engineering & Computer Science (AREA)
• Textile Engineering (AREA)
• Detail Structures Of Washing Machines And Dryers (AREA)
• Control Of Washing Machine And Dryer (AREA)
• Details Of Reciprocating Pumps (AREA)

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Publications (1)

Family

ID=58537016

Family Applications (1)

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Citations (3)

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• 2016
  • 2016-04-29 DE DE102016207391.5A patent/DE102016207391A1/de not_active Ceased
• 2017
  • 2017-04-12 PL PL17716914T patent/PL3449053T3/pl unknown
  • 2017-04-12 EP EP17716914.1A patent/EP3449053B1/de active Active
  • 2017-04-12 CN CN201780026566.3A patent/CN109154123B/zh active Active
  • 2017-04-12 WO PCT/EP2017/058819 patent/WO2017186500A1/de not_active Ceased

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