EP2497404A1 - Reinigungskreislauf für Geschirrspüler mit Vorrichtung zum Recyceln des Spülwassers - Google Patents

Reinigungskreislauf für Geschirrspüler mit Vorrichtung zum Recyceln des Spülwassers Download PDF

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Publication number
EP2497404A1
EP2497404A1 EP11425059A EP11425059A EP2497404A1 EP 2497404 A1 EP2497404 A1 EP 2497404A1 EP 11425059 A EP11425059 A EP 11425059A EP 11425059 A EP11425059 A EP 11425059A EP 2497404 A1 EP2497404 A1 EP 2497404A1
Authority
EP
European Patent Office
Prior art keywords
water
wash
pump
cleaning cycle
storage reservoir
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.)
Withdrawn
Application number
EP11425059A
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English (en)
French (fr)
Inventor
Andrea Ambrosi
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.)
Bonferraro SpA
Original Assignee
Bonferraro SpA
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 Bonferraro SpA filed Critical Bonferraro SpA
Priority to EP11425059A priority Critical patent/EP2497404A1/de
Publication of EP2497404A1 publication Critical patent/EP2497404A1/de
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • A47L15/4291—Recovery arrangements, e.g. for the recovery of energy or water
    • 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
    • A47L15/0002—Washing processes, i.e. machine working principles characterised by phases or operational steps

Definitions

  • the present invention relates to dishwashers, and in particular to a cleaning cycle for a dishwasher provided with a device for recycling the rinse water and/or the wash water.
  • the normal operating cycle substantially consists of the pre-wash, wash, intermediate rinse, final rinse and drying phases.
  • the initial pre-wash phase is useful to remove the largest residues from the dishes and the water used in said phase is then drained and replaced with clean water for the subsequent wash phase.
  • dishwashers provided with such a rinse water recycling system are found in US 2007-0277854A1 and DE 4243605A1 , that disclose hydraulic connecting systems between the storage reservoir and the wash tank in which there is provided a specific valve that closes and opens the access to the reservoir or a two-way valve that directs the rinse water towards the reservoir or towards the drain pipe.
  • said cleaning cycle provides the empty operation of the dishwasher with the load of the same amount of water used in the normal operating cycle and without recycling the rinse and/or wash water. Therefore the cleaning cycle affects only the parts usually contacted by the water in the normal operating cycle such as the wash tank, wash and drain pumps, load and drain pipes but not the rinse water storage reservoir that thus keeps accumulating dirt.
  • the object of the present invention is to provide a cleaning cycle, for a dishwasher that performs the water recycling function, which overcomes the above-mentioned drawbacks.
  • This object is achieved by means of a cycle that provides also the opening of the hydraulic connection towards the storage reservoir as well as the loading of an amount of water sufficient to guarantee the correct operation of the wash pump without cavitation even when said reservoir is full.
  • Other advantageous features of the present cleaning cycle for dishwasher are disclosed in the dependent claims.
  • the main advantage of this cleaning cycle resides in the fact that by loading the water also in the storage reservoir without having this cause the cavitation of the wash pump it is possible to remove the dirt residues from said reservoir so as to achieve a complete and accurate cleaning of the machine.
  • a dishwasher implementing a cleaning cycle according to the present invention is conventionally provided with a wash pump 1 that draws the water from the collecting sump and sends it, through a pipe 2, towards a storage reservoir 3 extending in the side portion of the dishwasher, between the wash tank and the external casing.
  • Said reservoir 3 includes an inlet passage 4 separate from an outlet passage 5, each passage being controlled by a respective valve 6 and 7, which converge downwards into the single connection to pipe 2.
  • Reservoir 3 further includes a load duct 8 extending from the inlet passage 4 to the top of reservoir 3.
  • a flowmeter e.g. in the form of a turbine 9, is preferably arranged in the load duct 8 to precisely measure the amount of water loaded in reservoir 3 and consequently control the stopping of the wash pump 1. It should be noted that, upon entry of the water, the air present in reservoir 3 is vented through the vent duct 10 connected to the wash tank through collar 11.
  • valves 6, 7 are usually driven by thermoactuators that must not exceed given operating times, it is possible that the flow of water through reservoir 3 is interrupted and restored during the cleaning cycle in order to allow the closing and re-opening of valves 6, 7 so as to comply with said operating times. This does not affect the cleaning effectiveness in that, in designing the cycle, the correct valve operating times are obviously taken into consideration so as to obtain a sufficient duration of the wash and rinse steps of reservoir 3.
  • HUE Heat Unit Equivalent

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  • Washing And Drying Of Tableware (AREA)
EP11425059A 2011-03-10 2011-03-10 Reinigungskreislauf für Geschirrspüler mit Vorrichtung zum Recyceln des Spülwassers Withdrawn EP2497404A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP11425059A EP2497404A1 (de) 2011-03-10 2011-03-10 Reinigungskreislauf für Geschirrspüler mit Vorrichtung zum Recyceln des Spülwassers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP11425059A EP2497404A1 (de) 2011-03-10 2011-03-10 Reinigungskreislauf für Geschirrspüler mit Vorrichtung zum Recyceln des Spülwassers

Publications (1)

Publication Number Publication Date
EP2497404A1 true EP2497404A1 (de) 2012-09-12

Family

ID=44262961

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11425059A Withdrawn EP2497404A1 (de) 2011-03-10 2011-03-10 Reinigungskreislauf für Geschirrspüler mit Vorrichtung zum Recyceln des Spülwassers

Country Status (1)

Country Link
EP (1) EP2497404A1 (de)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140283880A1 (en) * 2013-02-28 2014-09-25 Seongho KIM Dishwasher and a method for controlling the same
CN109973422A (zh) * 2017-12-28 2019-07-05 宁波方太厨具有限公司 用于清洗机的水泵叶轮及其应用
CN109973424A (zh) * 2017-12-28 2019-07-05 宁波方太厨具有限公司 用于清洗机的水泵叶轮及其应用
CN109973425A (zh) * 2017-12-28 2019-07-05 宁波方太厨具有限公司 用于清洗机的水泵叶轮及其应用
WO2022071984A1 (en) * 2020-10-02 2022-04-07 Ecolab Usa Inc. Monitoring and control of thermal sanitization in automated cleaning machines
US11627861B2 (en) 2019-09-12 2023-04-18 Ecolab Usa Inc. Control of cleaning machine cycles using machine vision
US11803957B2 (en) 2017-10-03 2023-10-31 Ecolab Usa Inc. Methods and system for performance assessment of cleaning operations
US11889963B2 (en) 2020-05-29 2024-02-06 Ecolab Usa Inc. Automated cleaning machine processing using shortened cycle times

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4243605A1 (de) 1992-12-22 1994-06-23 Bosch Siemens Hausgeraete Verfahren zum Betrieb einer Haushalt-Geschirrspülmaschine und Haushalt-Geschirrspülmaschine zur Durchführung des Verfahrens
EP0669097A2 (de) * 1994-02-25 1995-08-30 ELECTROLUX ZANUSSI ELETTRODOMESTICI S.p.A. Waschmaschine mit Einrichtung zur Wasserrückgewinnung
US20070277854A1 (en) 2003-12-23 2007-12-06 Rudiger Eiermann Dishwasher with Device for Storage of Rinsing Water
WO2010009890A1 (de) * 2008-07-23 2010-01-28 BSH Bosch und Siemens Hausgeräte GmbH Geschirrspülmaschine mit zwei umwälzkreisläufen
DE102009028274A1 (de) * 2009-08-06 2011-02-10 BSH Bosch und Siemens Hausgeräte GmbH Wasserführendes Haushaltsgerät

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4243605A1 (de) 1992-12-22 1994-06-23 Bosch Siemens Hausgeraete Verfahren zum Betrieb einer Haushalt-Geschirrspülmaschine und Haushalt-Geschirrspülmaschine zur Durchführung des Verfahrens
EP0669097A2 (de) * 1994-02-25 1995-08-30 ELECTROLUX ZANUSSI ELETTRODOMESTICI S.p.A. Waschmaschine mit Einrichtung zur Wasserrückgewinnung
US20070277854A1 (en) 2003-12-23 2007-12-06 Rudiger Eiermann Dishwasher with Device for Storage of Rinsing Water
WO2010009890A1 (de) * 2008-07-23 2010-01-28 BSH Bosch und Siemens Hausgeräte GmbH Geschirrspülmaschine mit zwei umwälzkreisläufen
DE102009028274A1 (de) * 2009-08-06 2011-02-10 BSH Bosch und Siemens Hausgeräte GmbH Wasserführendes Haushaltsgerät

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140283880A1 (en) * 2013-02-28 2014-09-25 Seongho KIM Dishwasher and a method for controlling the same
US9861249B2 (en) * 2013-02-28 2018-01-09 Lg Electronics Inc. Dishwasher and a method for controlling the same
US11803957B2 (en) 2017-10-03 2023-10-31 Ecolab Usa Inc. Methods and system for performance assessment of cleaning operations
CN109973422A (zh) * 2017-12-28 2019-07-05 宁波方太厨具有限公司 用于清洗机的水泵叶轮及其应用
CN109973424A (zh) * 2017-12-28 2019-07-05 宁波方太厨具有限公司 用于清洗机的水泵叶轮及其应用
CN109973425A (zh) * 2017-12-28 2019-07-05 宁波方太厨具有限公司 用于清洗机的水泵叶轮及其应用
CN109973425B (zh) * 2017-12-28 2021-04-16 宁波方太厨具有限公司 用于清洗机的水泵叶轮及其应用
US11627861B2 (en) 2019-09-12 2023-04-18 Ecolab Usa Inc. Control of cleaning machine cycles using machine vision
US11889963B2 (en) 2020-05-29 2024-02-06 Ecolab Usa Inc. Automated cleaning machine processing using shortened cycle times
WO2022071984A1 (en) * 2020-10-02 2022-04-07 Ecolab Usa Inc. Monitoring and control of thermal sanitization in automated cleaning machines
US11666198B2 (en) 2020-10-02 2023-06-06 Ecolab Usa Inc. Monitoring and control of thermal sanitization in automated cleaning machines

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