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.

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• Washing And Drying Of Tableware (AREA)

Priority Applications (1)

Applications Claiming Priority (1)

Publications (1)

Family

ID=40459791

Family Applications (1)

Country Status (1)

Cited By (2)

Citations (5)

• 2008
  • 2008-10-22 EP EP08167331A patent/EP2179684A1/de not_active Withdrawn

Patent Citations (5)

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