EP2179684A1 - A washing method for dishwashers - Google Patents

A washing method for dishwashers Download PDF

Info

Publication number
EP2179684A1
EP2179684A1 EP08167331A EP08167331A EP2179684A1 EP 2179684 A1 EP2179684 A1 EP 2179684A1 EP 08167331 A EP08167331 A EP 08167331A EP 08167331 A EP08167331 A EP 08167331A EP 2179684 A1 EP2179684 A1 EP 2179684A1
Authority
EP
European Patent Office
Prior art keywords
washing
prewash
machine
programs
button
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Withdrawn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
EP08167331A
Other languages
German (de)
French (fr)
Inventor
Mehmet Eldem
Turgay Büyük
Evren Bal
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.)
Vestel Beyaz Esya Sanayi ve Ticaret AS
Original Assignee
Vestel Beyaz Esya Sanayi ve Ticaret AS
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 Vestel Beyaz Esya Sanayi ve Ticaret AS filed Critical Vestel Beyaz Esya Sanayi ve Ticaret AS
Priority to EP08167331A priority Critical patent/EP2179684A1/en
Publication of EP2179684A1 publication Critical patent/EP2179684A1/en
Withdrawn legal-status Critical Current

Links

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
    • A47L15/0018—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
    • A47L2301/00—Manual input in controlling methods of washing or rinsing machines for crockery or tableware, i.e. information entered by a user
    • A47L2301/04—Operation mode, e.g. delicate washing, economy washing, reduced time, sterilizing, water softener regenerating, odor eliminating or service
    • 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
    • A47L2501/30—Regulation of machine operational steps within the washing process, e.g. performing an additional rinsing phase, shortening or stopping of the drying phase, washing at decreased noise operation conditions

Definitions

  • the present invention relates to a washing method performed by a dishwasher when a separate prewash operation is selected for the washing programs implemented on dishwashers.
  • depressing the prewash button on a dishwasher causes the machine only to add an additional washing step -to be conducted for a determined period of time under a determined temperature- to the beginning of a selected washing program, and does not make any change on such selected washing program itself to take place following said prewash step.
  • the machine detects that the washing is to be conducted under relatively denser dirt conditions as compared to a normal washing operation, and changes its algorithm so as to conduct a more intensive washing as compared to a normal washing step.
  • the objective of the present invention is to enhance the washing performance with the prewash step implemented in dishwashers.
  • Another objective of the present invention is to implement the washing steps by changing the features of already-installed washing programs in dishwashers when the prewash step is selected.
  • a further objective of the present invention is to implement the washing operations for longer periods and under higher temperatures than that of already-installed washing programs in dishwashers when the prewash step is selected.
  • Yet a further objective of the present invention is to make applicable the washing method according to the present invention in all currently-used dishwashers, without changing their structure.
  • Still a further objective of the present invention is to run the dishwashers by means of an easily-implemented, inexpensive, and reliable washing method.
  • washing steps of dishwashers are implemented by the control unit of the dishwashers.
  • the selection of such washing steps are realized by means of selection buttons provided on the machine.
  • the washing steps are run according to the user selections and the control unit provides the machine's operation as required by the programs installed on it.
  • Such programs of dishwashers comprise the steps such as prewash, main wash, rinse, hot rinse, etc.
  • Various washing parameters such as the water temperature, washing time, and the rinsing and drying times do vary according to such washing programs.
  • the present invention makes use of the prewash button provided in many dishwashers already in use for enhancing the washing performance.
  • the method according to the present invention changes the aforesaid standard washing operations for this purpose and enhances the machine's washing performance. Accordingly, when the user depresses the prewash button on the machine, the control unit of the machine rearranges each washing program selected by the user. Such rearranged washing programs are the changed forms of standard programs which are applicable while the prewash button is not depressed.
  • the washing steps of the novel washing programs perform the washing operations at higher temperatures and for longer period of times as compared to those of the washing steps of standard programs. According to the selection of the relevant program, the temperature of at least one of the steps of prewash, main wash, rinse, and hot rinse can be increased and the time values can be lengthened. Additionally, if no prewash step is available in a washing program, this step can be implemented so as to become the first step of the novel program.
  • each washing program is provided with an extra-intensive washing feature, and the number of washing programs can be increased according to the machine's model.

Landscapes

  • Washing And Drying Of Tableware (AREA)

Abstract

Thanks to the method according to the present invention, the standard washing operations implemented in dishwashers are changed by making use of the prewash button. In this method used for improving the machine's washing performance, when the user depresses the prewash button on the machine, the control unit of the machine rearranges each washing program selected by the user. Such rearranged washing programs are the changed forms of standard programs which are applicable while the prewash button is not depressed. The washing steps of the novel washing programs perform the washing operations at higher temperatures and for longer period of times as compared to those of the washing steps of standard programs.

Description

    Technical Field
  • The present invention relates to a washing method performed by a dishwasher when a separate prewash operation is selected for the washing programs implemented on dishwashers.
    • Prior Art
  • As known, during a normal wash operation in dishwashers, the dishes contained in the machine are washed for a determined period of time under a determined temperature, depending on the program selected by the respective user. However in circumstances, when the dirt accumulated on dishes is too dense or if such dishes are left for relatively longer periods of time in the machine prior to washing, the user may depress a prewash button on the machine and conduct a prewash operation before the selected washing program starts operating. Prewash steps are such operations which enhance the cleaning performance of dishwashers.
  • With respect to the relevant prior art, depressing the prewash button on a dishwasher causes the machine only to add an additional washing step -to be conducted for a determined period of time under a determined temperature- to the beginning of a selected washing program, and does not make any change on such selected washing program itself to take place following said prewash step.
  • There are also made various works in the prior art for improving the washing performance. For instance, in the published patent application EP0291713 , hot water steam is sprayed onto the dishes in some steps for enhancing the washing performance. As for the application EP0852929 , there disclosed a dishwasher in which the washing steps are determined according to a measurement conducted by a dirt sensor. With respect to the application EP0553803 , there is disclosed a prewash operation composed of two steps for enhancing the washing performance.
    • Brief Description of Invention
  • According to the method of the present invention, if the prewash button is depressed in any washing program selected by the user, the machine detects that the washing is to be conducted under relatively denser dirt conditions as compared to a normal washing operation, and changes its algorithm so as to conduct a more intensive washing as compared to a normal washing step.
  • When the user depresses the prewash button and sets the machine for a washing operation while the dishes included therein are too dirty, it is hereby detected that the dishes are more dirty as compared to normal conditions, so that the washing operation is conducted in a more intensive manner than the normal standards or than that of the washing programs set up in the machine, resulting in a more efficient washing performance. This actually means that, once the prewash button is depressed in the machine, extra novel programs are provided in addition to those programs already run on the machine. Thanks to this novel program obtained as a result of depressing the prewash button by the user, it is assumed that the dishes placed in the machine are relatively dirtier, so that the washing programs already set on the machine are run for longer periods of time than their normal length under relatively higher temperatures. With the subject method, the flow of all washing algorithms in the machine is changed.
    • Objective of Invention
  • The objective of the present invention is to enhance the washing performance with the prewash step implemented in dishwashers.
  • Another objective of the present invention is to implement the washing steps by changing the features of already-installed washing programs in dishwashers when the prewash step is selected.
  • A further objective of the present invention is to implement the washing operations for longer periods and under higher temperatures than that of already-installed washing programs in dishwashers when the prewash step is selected.
  • Yet a further objective of the present invention is to make applicable the washing method according to the present invention in all currently-used dishwashers, without changing their structure.
  • Still a further objective of the present invention is to run the dishwashers by means of an easily-implemented, inexpensive, and reliable washing method.
    • Description of Invention
  • As known, the washing steps of dishwashers are implemented by the control unit of the dishwashers. The selection of such washing steps are realized by means of selection buttons provided on the machine. The washing steps are run according to the user selections and the control unit provides the machine's operation as required by the programs installed on it.
  • There is provided a separate washing method for each program. Such programs of dishwashers comprise the steps such as prewash, main wash, rinse, hot rinse, etc. Various washing parameters such as the water temperature, washing time, and the rinsing and drying times do vary according to such washing programs.
  • The present invention makes use of the prewash button provided in many dishwashers already in use for enhancing the washing performance. The method according to the present invention changes the aforesaid standard washing operations for this purpose and enhances the machine's washing performance. Accordingly, when the user depresses the prewash button on the machine, the control unit of the machine rearranges each washing program selected by the user. Such rearranged washing programs are the changed forms of standard programs which are applicable while the prewash button is not depressed.
  • The washing steps of the novel washing programs perform the washing operations at higher temperatures and for longer period of times as compared to those of the washing steps of standard programs. According to the selection of the relevant program, the temperature of at least one of the steps of prewash, main wash, rinse, and hot rinse can be increased and the time values can be lengthened. Additionally, if no prewash step is available in a washing program, this step can be implemented so as to become the first step of the novel program.
  • Thus, thanks to the present invention, each washing program is provided with an extra-intensive washing feature, and the number of washing programs can be increased according to the machine's model.

Claims (7)

  1. A washing method of dishwashers, characterized in that once the prewash button on such dishwasher is depressed, the washing operation in at least one of the steps of a selected washing program is conducted for a longer period of time and under a higher temperature, as compared to the case when the prewash button is not depressed.
  2. A method according to Claim 1, characterized in that if no prewash step is available in a selected program, this program starts with a prewash step.
  3. A method according to Claim 1, characterized in that the step of said selected program is a prewash step.
  4. A method according to Claim 1, characterized in that the step of said selected program is a main wash step.
  5. A method according to Claim 1, characterized in that the step of said selected program is a rinse step.
  6. A method according to Claim 1, characterized in that the step of said selected program is a hot rinse step.
  7. A dishwasher according to any of the preceding claims.
EP08167331A 2008-10-22 2008-10-22 A washing method for dishwashers Withdrawn EP2179684A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP08167331A EP2179684A1 (en) 2008-10-22 2008-10-22 A washing method for dishwashers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP08167331A EP2179684A1 (en) 2008-10-22 2008-10-22 A washing method for dishwashers

Publications (1)

Publication Number Publication Date
EP2179684A1 true EP2179684A1 (en) 2010-04-28

Family

ID=40459791

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08167331A Withdrawn EP2179684A1 (en) 2008-10-22 2008-10-22 A washing method for dishwashers

Country Status (1)

Country Link
EP (1) EP2179684A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2420175A3 (en) * 2010-08-20 2017-12-27 BSH Hausgeräte GmbH Dishwasher with a manually adjustable rinsing programme
DE102022201954A1 (en) 2022-02-25 2023-08-31 BSH Hausgeräte GmbH Process, computer program product and dishwasher

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3114846A1 (en) * 1981-04-11 1982-11-04 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Method for cleaning crockery in a dish-washing machine
EP0255863A2 (en) * 1986-08-04 1988-02-17 Licentia Patent-Verwaltungs-GmbH Dishwashing machine
DE19540871A1 (en) * 1995-11-02 1997-05-07 Bosch Siemens Hausgeraete Method of operating program controlled dish-washing machine
EP1362547A2 (en) * 2002-05-16 2003-11-19 Electrolux Home Products Corporation N.V. Dishwasher and method of operating a dishwasher when a combined preparation of various active ingredients is used
DE102005061807A1 (en) * 2005-12-23 2007-06-28 BSH Bosch und Siemens Hausgeräte GmbH Method for modifying the process of a domestic dish washing machine has a switch by which the drying temperature may be reduced when a lower temperature rinsing operation is employed

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3114846A1 (en) * 1981-04-11 1982-11-04 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Method for cleaning crockery in a dish-washing machine
EP0255863A2 (en) * 1986-08-04 1988-02-17 Licentia Patent-Verwaltungs-GmbH Dishwashing machine
DE19540871A1 (en) * 1995-11-02 1997-05-07 Bosch Siemens Hausgeraete Method of operating program controlled dish-washing machine
EP1362547A2 (en) * 2002-05-16 2003-11-19 Electrolux Home Products Corporation N.V. Dishwasher and method of operating a dishwasher when a combined preparation of various active ingredients is used
DE102005061807A1 (en) * 2005-12-23 2007-06-28 BSH Bosch und Siemens Hausgeräte GmbH Method for modifying the process of a domestic dish washing machine has a switch by which the drying temperature may be reduced when a lower temperature rinsing operation is employed

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2420175A3 (en) * 2010-08-20 2017-12-27 BSH Hausgeräte GmbH Dishwasher with a manually adjustable rinsing programme
DE102022201954A1 (en) 2022-02-25 2023-08-31 BSH Hausgeräte GmbH Process, computer program product and dishwasher
WO2023160844A1 (en) 2022-02-25 2023-08-31 BSH Hausgeräte GmbH Method, computer program product, and dishwasher
EP4566506A2 (en) 2022-02-25 2025-06-11 BSH Hausgeräte GmbH Method, computer program product and dishwasher

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