EP2420609A3 - Lye pump for water-bearing domestic appliances and water-bearing domestic appliance - Google Patents

Lye pump for water-bearing domestic appliances and water-bearing domestic appliance Download PDF

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Publication number
EP2420609A3
EP2420609A3 EP11176799.2A EP11176799A EP2420609A3 EP 2420609 A3 EP2420609 A3 EP 2420609A3 EP 11176799 A EP11176799 A EP 11176799A EP 2420609 A3 EP2420609 A3 EP 2420609A3
Authority
EP
European Patent Office
Prior art keywords
pump
water
intake pipe
flow
bearing domestic
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
EP11176799.2A
Other languages
German (de)
French (fr)
Other versions
EP2420609B1 (en
EP2420609A2 (en
Inventor
Edwin Bolduan
Raymond Römer
Marcel Werner
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.)
BSH Hausgeraete GmbH
Original Assignee
BSH Hausgeraete 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 BSH Hausgeraete GmbH filed Critical BSH Hausgeraete GmbH
Priority to PL11176799T priority Critical patent/PL2420609T3/en
Publication of EP2420609A2 publication Critical patent/EP2420609A2/en
Publication of EP2420609A3 publication Critical patent/EP2420609A3/en
Application granted granted Critical
Publication of EP2420609B1 publication Critical patent/EP2420609B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/44—Fluid-guiding means, e.g. diffusers
    • F04D29/445—Fluid-guiding means, e.g. diffusers especially adapted for liquid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D9/00—Priming; Preventing vapour lock
    • F04D9/001—Preventing vapour lock
    • F04D9/002—Preventing vapour lock by means in the very pump
    • F04D9/003—Preventing vapour lock by means in the very pump separating and removing the vapour

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Water Supply & Treatment (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

Als wesentliches Merkmal weist die erfindungsgemäße Laugenpumpe (1) im Ansaugrohr (13), das die Pumpenvorkammer mit der Pumpendruckkammer verbindet, einen oben liegenden Entlüftungskanal (11) auf. Die Luftbläschen im Förderstrom können über den Entlüftungskanal (11) aus dem Saugrohr (13) austreten und gegen die zuströmende Arbeitsflüssigkeit über den nach oben geneigten Ablaufschlauch (6) abgeleitet werden.As an essential feature, the drain pump according to the invention (1) in the intake pipe (13), which connects the Pumpenvorkammer with the pump pressure chamber, an overhead vent passage (11). The air bubbles in the flow can escape via the vent channel (11) from the suction pipe (13) and be discharged against the incoming working fluid via the upwardly inclined drain hose (6).

Um die Ausbildung von Wirbeln zu verhindern ist außen am Ansaugrohr (13) parallel zum Entlüftungskanal (11) mindestens eine Prallwand (10) radial angeordnet. Weitere strömungstechnische Vorteile sind erreichbar durch zusätzlich am Ansaugrohr angeordnete schräge oder geschwungene axiale Rippen (12).In order to prevent the formation of vortices, at least one baffle wall (10) is arranged radially on the outside of the intake pipe (13) parallel to the venting channel (11). Further fluidic advantages can be achieved by additionally arranged on the intake pipe oblique or curved axial ribs (12).

Mit der erfindungsgemäß gestalteten Laugenpumpe wird deren Belüftung verbessert und der Förderstrom stabilisiert. Durch die vorgeschlagenen Maßnahmen an der Förderpumpe können Pumpabbrüche vermieden werden, der gesamte Abpumpprozess kann auch bei hohem Luft- bzw. Schaumanteil in der zu fördernden Arbeitsflüssigkeit mit stabilen Betriebszuständen und damit maximal möglichem Förderstrom in einer verkürzten Zeit durchfahren werden. Die Laugenpumpe ist vorteilhaft einsetzbar bei wasserführenden Haushaltgeräten, insbesondere Wäschewaschmaschinen, mit vergrößertem Trommelvolumen und verkürzten Programmzeiten.

Figure imgaf001
With the inventively designed drain pump whose ventilation is improved and the flow stabilized. By the proposed measures on the pump pump breaks can be avoided, the entire pump-down process can be traversed even at high air or foam content in the working fluid to be pumped with stable operating conditions and thus maximum possible flow in a shorter time. The drain pump is advantageously used in water-bearing household appliances, especially laundry washing machines, with increased drum volume and shorter program times.
Figure imgaf001
EP11176799.2A 2010-08-20 2011-08-08 Lye pump for water-bearing domestic appliances and water-bearing domestic appliance Active EP2420609B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL11176799T PL2420609T3 (en) 2010-08-20 2011-08-08 Lye pump for water-bearing domestic appliances and water-bearing domestic appliance

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102010039566A DE102010039566A1 (en) 2010-08-20 2010-08-20 Lye pump for water-bearing household appliances and water-conducting household appliance

Publications (3)

Publication Number Publication Date
EP2420609A2 EP2420609A2 (en) 2012-02-22
EP2420609A3 true EP2420609A3 (en) 2017-08-30
EP2420609B1 EP2420609B1 (en) 2020-12-30

Family

ID=44677437

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11176799.2A Active EP2420609B1 (en) 2010-08-20 2011-08-08 Lye pump for water-bearing domestic appliances and water-bearing domestic appliance

Country Status (3)

Country Link
EP (1) EP2420609B1 (en)
DE (1) DE102010039566A1 (en)
PL (1) PL2420609T3 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2746441A1 (en) 2012-12-18 2014-06-25 Miele & Cie. KG Method for operating a water-conducting domestic appliance and water-conducting domestic appliance
WO2015016939A1 (en) 2013-08-02 2015-02-05 Electrolux Home Products, Inc. Pump plate for conditioning fluid flow in a dishwasher
DE102014210626B4 (en) * 2014-06-04 2020-06-18 BSH Hausgeräte GmbH Household appliance with a tub
CN109779977B (en) * 2017-11-14 2022-07-12 青岛海尔洗涤电器有限公司 Double-end pump shell structure and washing machine
KR102543851B1 (en) 2018-05-16 2023-06-16 삼성전자주식회사 Washing machine

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4302497A1 (en) * 1993-01-29 1994-08-04 Massindustrie Gmbh Flow pump for dishwashers etc.
DE19537944A1 (en) * 1995-10-12 1997-04-17 Aeg Hausgeraete Gmbh Discharge pump for washing machines etc.
EP1024292A2 (en) * 1999-01-26 2000-08-02 WILO GmbH Centrifugal pump with gas separation chamber
DE102008054998B3 (en) * 2008-12-19 2010-06-17 BSH Bosch und Siemens Hausgeräte GmbH Front loading washing machine, has guiding device arranged before drain pump, hollow cylindrical part comprising two ends, inner upper surface and external upper surface, and vane arranged on external upper surface

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4133554A1 (en) 1991-10-10 1993-04-15 Bauknecht Hausgeraete HOUSEHOLD APPLIANCE, e.g. WASHING OR DISHWASHER
DE19752296A1 (en) 1997-11-26 1999-05-27 Aeg Hausgeraete Gmbh Washing machine drum
DE10234472A1 (en) 2002-07-29 2004-02-12 BSH Bosch und Siemens Hausgeräte GmbH A method for preventing wash liquor foam inhibiting pump performance in a horizontal drum automatic washing machine has a foam detector controlling the drive motor for the drum

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4302497A1 (en) * 1993-01-29 1994-08-04 Massindustrie Gmbh Flow pump for dishwashers etc.
DE19537944A1 (en) * 1995-10-12 1997-04-17 Aeg Hausgeraete Gmbh Discharge pump for washing machines etc.
EP1024292A2 (en) * 1999-01-26 2000-08-02 WILO GmbH Centrifugal pump with gas separation chamber
DE102008054998B3 (en) * 2008-12-19 2010-06-17 BSH Bosch und Siemens Hausgeräte GmbH Front loading washing machine, has guiding device arranged before drain pump, hollow cylindrical part comprising two ends, inner upper surface and external upper surface, and vane arranged on external upper surface

Also Published As

Publication number Publication date
EP2420609B1 (en) 2020-12-30
DE102010039566A1 (en) 2012-02-23
EP2420609A2 (en) 2012-02-22
PL2420609T3 (en) 2021-06-28

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