CA2717338A1 - Dishwasher and method for cleaning wash ware - Google Patents
Dishwasher and method for cleaning wash ware Download PDFInfo
- Publication number
- CA2717338A1 CA2717338A1 CA2717338A CA2717338A CA2717338A1 CA 2717338 A1 CA2717338 A1 CA 2717338A1 CA 2717338 A CA2717338 A CA 2717338A CA 2717338 A CA2717338 A CA 2717338A CA 2717338 A1 CA2717338 A1 CA 2717338A1
- Authority
- CA
- Canada
- Prior art keywords
- rinse
- treatment chamber
- fresh
- steam
- water
- 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
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
- A47L15/42—Details
- A47L15/4234—Steam generating 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
- A47L15/0002—Washing processes, i.e. machine working principles characterised by phases or operational steps
- A47L15/0005—Rinsing phases, e.g. pre-rinsing, intermediate rinsing, final rinsing
-
- 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
- A47L15/0015—Washing processes, i.e. machine working principles characterised by phases or operational steps other treatment phases, e.g. steam or sterilizing phase
-
- 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
- A47L15/0076—Washing or rinsing machines for crockery or tableware of non-domestic use type, e.g. commercial dishwashers for bars, hotels, restaurants, canteens or hospitals
- A47L15/0078—Washing or rinsing machines for crockery or tableware of non-domestic use type, e.g. commercial dishwashers for bars, hotels, restaurants, canteens or hospitals with a plurality of fluid recirculation arrangements, e.g. with separated washing liquid and rinsing liquid recirculation circuits
-
- 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
- A47L2601/00—Washing methods characterised by the use of a particular treatment
- A47L2601/02—Pressurised cleaning liquid delivered by a pump
-
- 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
- A47L2601/00—Washing methods characterised by the use of a particular treatment
- A47L2601/04—Steam
Abstract
A method, and related dishwasher, for cleaning wash ware that provides a wash phase followed by a rinse phase, in which rinse fluid is conducted into a treatment chamber (2) of the dishwasher (1). The rinse phase is composed of a fresh- water rinse phase and a steam rinse phase. During the fresh-water rinse phase, a rinse liquid is sprayed into the treatment chamber (2).
During the steam rinse phase, steam is generated and conducted into the treatment chamber (2). A total of 0.5 to 2.0 litres of rinse fluid per unit area of 500 mm x 500 mm, which is enclosed by the wall of the treatment chamber (2) in a top view of the treatment chamber, and preferably 1.0 to 1.7 litres of rinse liquid per unit area of 500 mm x 500 mm, which is enclosed by the wall of the treatment chamber (2) in a top view of the treatment chamber, is sprayed into the treatment chamber (2) during the fresh- water rinse phase.
During the steam rinse phase, steam is generated and conducted into the treatment chamber (2). A total of 0.5 to 2.0 litres of rinse fluid per unit area of 500 mm x 500 mm, which is enclosed by the wall of the treatment chamber (2) in a top view of the treatment chamber, and preferably 1.0 to 1.7 litres of rinse liquid per unit area of 500 mm x 500 mm, which is enclosed by the wall of the treatment chamber (2) in a top view of the treatment chamber, is sprayed into the treatment chamber (2) during the fresh- water rinse phase.
Claims (22)
1. Method for cleaning wash ware in a program-controlled ware washer having a treatment chamber (2) for accommodating the wash ware to be cleaned, wherein the method has the following program-controlled method steps to be executed successively:
- a wash phase, in which wash liquid (6) is sprayed from a tank (4) by means of a wash pump (8) through a wash line system (10) into the treatment chamber (2) and can flow back into the tank (4) from the treatment chamber (2) because of the force of gravity; and - a rinse phase, in which rinse fluid is conducted into the treatment chamber (2), characterized in that the rinse phase is composed of a fresh-water rinse phase, in which a rinse liquid is sprayed from a rinse-liquid supply device (14, 21) by means of a rinse pump (12, 13) through a rinse line system (15) into the treatment chamber (2) and can flow from the treatment chamber (2) into the tank (4) because of the force of gravity, and of a steam rinse phase, in which steam is generated by means of a steam generator (20), which is connected to a fresh-water feed line (28), and is conducted into the treatment chamber (2), with a total of 0.5 to 2.0 litres of rinse liquid per unit area of 500 mm x 500 mm, which is enclosed by the wall of the treatment chamber (2) in a top view of the treatment chamber, being sprayed into the treatment chamber (2) during the fresh-water rinse phase.
- a wash phase, in which wash liquid (6) is sprayed from a tank (4) by means of a wash pump (8) through a wash line system (10) into the treatment chamber (2) and can flow back into the tank (4) from the treatment chamber (2) because of the force of gravity; and - a rinse phase, in which rinse fluid is conducted into the treatment chamber (2), characterized in that the rinse phase is composed of a fresh-water rinse phase, in which a rinse liquid is sprayed from a rinse-liquid supply device (14, 21) by means of a rinse pump (12, 13) through a rinse line system (15) into the treatment chamber (2) and can flow from the treatment chamber (2) into the tank (4) because of the force of gravity, and of a steam rinse phase, in which steam is generated by means of a steam generator (20), which is connected to a fresh-water feed line (28), and is conducted into the treatment chamber (2), with a total of 0.5 to 2.0 litres of rinse liquid per unit area of 500 mm x 500 mm, which is enclosed by the wall of the treatment chamber (2) in a top view of the treatment chamber, being sprayed into the treatment chamber (2) during the fresh-water rinse phase.
2. Method according to Claim 1, characterized in that a total water quantity of 0.05 to 0.25 litre per unit area of 500 mm x 500 mm, which is enclosed by the wall of the treatment chamber (2) in a top view of the treatment chamber, is conducted in steam form during the steam rinse phase into the treatment chamber (2).
3. Method according to Claim 2, characterized in that 1.0 to 1.7 litres of rinse liquid per unit area of 500 mm x 500 mm, which is enclosed by the wall of the treatment chamber (2) in the top view of the treatment chamber is sprayed into the treatment chamber (2) during the fresh-water rinse phase and water quantity of 0.10 to 0.15 litres per unit area of 500 mm x 500 mm, which is enclosed by the wall of the treatment chamber (2) in the top view of the treatment chamber is conducted in steam form during the steam rinse phase into the treatment chamber (2).
4. Method according to one of Claims 1 to 3, characterized in that the steam rinse phase takes up a period of time of 5 to 60 seconds and preferably a period of time of to 30 seconds.
5. Method according to one of the preceding claims, characterized in that the steam rinse phase begins after the fresh-water rinse phase ends.
6. Method according to one of Claims 1 to 4, characterized in that the steam rinse phase and the fresh-water rinse phase at least partially overlap chronologically.
7. Method according to one of the preceding claims, characterized in that the method furthermore has a condensation and draining phase which is carried out following the steam rinse phase and lasts for a defined time, and in which the steam conducted into the treatment chamber (2) during the steam rinse phase can at least partially condense, drain and flow into the tank (4) because of the force of gravity.
8. Method according to one of the preceding claims, characterized in that clean fresh water is used as the rinse liquid during the fresh-water rinse phase, or in that fresh water and the rinse aid which is metered into the fresh water are used as the rinse liquid during the fresh-water rinse phase.
9. Method according to one of the preceding claims, characterized in that rinse liquid which is heated during the fresh-water rinse phase is sprayed into the treatment chamber (2).
10. Method according to one of Claims 1 to 8, characterized in that rinse liquid which is unheated during the fresh-water rinse phase is sprayed into the treatment chamber (2).
11. Dishwasher (1) in the form of a program-controlled ware washer, having:
- a program-control device (50) for executing at least one cleaning program;
- a treatment chamber (2) into which wash ware can be manually inserted and from which said wash ware can be manually removed;
- a tank (4) down into which liquid from the treatment chamber (2) can flow because of the force of gravity;
a wash system (7, 8, 9, 10) with a wash pump (8) and a wash line system (10) for conveying wash liquid (6) from the tank (4) through wash nozzles (7, 9) into the treatment chamber (2) during a wash phase;
- a fresh-water rinse system (12, 13, 15a, 15b, 33, 34) with at least one rinse pump (12, 13) and at least one rinse line system (15a, 15b) for conveying rinse liquid from a fresh-water supply device (14, 21) through rinse nozzles (33, 34) into the treatment chamber (2) during a fresh-water rinse phase; and - a steam rinse system (20, 32) with a steam generator (20), which is connected to a fresh-water feed line (28), for generating steam and conducting the steam via a steam line (32) into the treatment chamber (2) during a steam rinse phase, wherein the program-control device (50) is designed in such a manner that first the wash phase, then the fresh-water rinse phase and thereafter the steam rinse phase are executed, characterized in that the program-control device (50) and the fresh-water rinse system (12, 13, 15a, 15b, 33, 34) controlled by it are designed to spray a total of 0.5 to 2.0 litres of rinse liquid per unit area of 500 mm x 500 mm, which is enclosed by the wall of the treatment chamber (2) in a top view of the treatment chamber, into the treatment chamber (2) during the fresh-water rinse phase.
- a program-control device (50) for executing at least one cleaning program;
- a treatment chamber (2) into which wash ware can be manually inserted and from which said wash ware can be manually removed;
- a tank (4) down into which liquid from the treatment chamber (2) can flow because of the force of gravity;
a wash system (7, 8, 9, 10) with a wash pump (8) and a wash line system (10) for conveying wash liquid (6) from the tank (4) through wash nozzles (7, 9) into the treatment chamber (2) during a wash phase;
- a fresh-water rinse system (12, 13, 15a, 15b, 33, 34) with at least one rinse pump (12, 13) and at least one rinse line system (15a, 15b) for conveying rinse liquid from a fresh-water supply device (14, 21) through rinse nozzles (33, 34) into the treatment chamber (2) during a fresh-water rinse phase; and - a steam rinse system (20, 32) with a steam generator (20), which is connected to a fresh-water feed line (28), for generating steam and conducting the steam via a steam line (32) into the treatment chamber (2) during a steam rinse phase, wherein the program-control device (50) is designed in such a manner that first the wash phase, then the fresh-water rinse phase and thereafter the steam rinse phase are executed, characterized in that the program-control device (50) and the fresh-water rinse system (12, 13, 15a, 15b, 33, 34) controlled by it are designed to spray a total of 0.5 to 2.0 litres of rinse liquid per unit area of 500 mm x 500 mm, which is enclosed by the wall of the treatment chamber (2) in a top view of the treatment chamber, into the treatment chamber (2) during the fresh-water rinse phase.
12. Dishwasher according to Claim 11, characterized in that the program-control device (50) and the steam rinse system (20, 32) controlled by it are designed to conduct a total water quantity of 0.05 to 0.25 litre per unit area of 500 mm x 500 mm, which is enclosed by the wall of the treatment chamber (2) in a top view of the treatment chamber, in steam form into the treatment chamber (2) during the steam rinse phase.
13. Dishwasher according to Claim 12, characterized in that 1.0 to 1.7 litres of rinse liquid per unit area of 500 mm x 500 mm, which is enclosed by the wall of the treatment chamber (2) in the top view of the treatment chamber is sprayed into the treatment chamber (2) during the fresh-water rinse phase and water quantity of 0.10 to 0.15 litres per unit area of 500 mm x 500 mm, which is enclosed by the wall of the treatment chamber (2) in the top view of the treatment chamber is conducted in steam form during the steam rinse phase into the treatment chamber (2).
14. Dishwasher according to one of Claims 11 to 13, characterized in that the treatment chamber (2) is designed to accommodate at least one basket of 500 mm x 500 mm.
15. Dishwasher according to one of Claims 11 to 14, characterized in that the fresh-water supply device (21) for heating the rinse liquid to be conveyed into the treatment chamber (2) during the fresh-water rinse phase has a boiler (21) which is connected to a fresh-water feed line (28) and the outlet (35) of which is connected to the intake side of a first rinse pump (12), of which there is at least one.
16. Dishwasher according to one of Claims 11 to 14, characterized in that the fresh-water supply device (14) has a fresh-water tank (14) which is connected to a fresh-water line (31) and the outlet (36) of which is connected to the intake side of a second rinse pump (13), of which there is at least one.
17. Dishwasher according to one of Claims 11 to 16, characterized in that the steam generator (20) is integrated in the boiler (21).
18. Dishwasher according to one of Claims 11 to 17, characterized in that a steam outlet (23) of the steam generator (20) is connected to the treatment chamber (2) via a steam line (32), which is separate from the rinse line system (15) and the wash line system (10), at a location (37) which is higher than the tank (4).
19. Dishwasher according to one of Claims 11 to 18, characterized in that the program-control device (50) is designed to execute a condensation and draining phase which follows the steam rinse phase and which lasts for a defined time during which steam which has condensed in the treatment chamber (2) can flow down into the tank (4) after the steam rinse phase, before the end of the program is reached.
20. Dishwasher according to one of Claims 11 to 19, characterized in that a rinse-aid metering device is provided for metering rinse aid into the fresh water of the rinse liquid.
21. Dishwasher according to one of Claims 11 to 20, characterized by a return-prevention means (16) via which the intake end of the at least one rinse pump (12, 13) is connected to a fresh-water feed line (17), with the back flow-prevention means (16) being designed to prevent liquid from flowing back into the fresh-water feed line (17) in the direction from the at least one rinse pump (12, 13).
22. Dishwasher according to one of Claims 11 to 21, characterized by a water-softening device (39) for conditioning the fresh water for the fresh-water rinse system (12, 13, 15a, 15b, 33, 34) and the fresh water for the steam rinse system (20, 32).
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102008013549A DE102008013549A1 (en) | 2008-03-11 | 2008-03-11 | Dishwashing machine and method for cleaning items to be washed |
| DE102008013549.6 | 2008-03-11 | ||
| PCT/US2009/035841 WO2009114337A1 (en) | 2008-03-11 | 2009-03-03 | Dishwasher and method for cleaning wash ware |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2717338A1 true CA2717338A1 (en) | 2009-09-17 |
| CA2717338C CA2717338C (en) | 2012-11-13 |
Family
ID=40578870
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2717338A Expired - Fee Related CA2717338C (en) | 2008-03-11 | 2009-03-03 | Dishwasher and method for cleaning wash ware |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US20110005557A1 (en) |
| EP (1) | EP2254453B1 (en) |
| CN (1) | CN101969830B (en) |
| CA (1) | CA2717338C (en) |
| DE (1) | DE102008013549A1 (en) |
| WO (1) | WO2009114337A1 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2491843B1 (en) * | 2011-02-22 | 2013-06-19 | Miele & Cie. KG | Method for performing a wash programme comprising at least the cleaning, mid-cycle rinse and final rinse program sections |
| DE102012207565A1 (en) * | 2012-05-07 | 2013-11-07 | Premark Feg L.L.C. | Method for operating a dishwasher designed as a programmer and corresponding dishwasher |
| CN109475262B (en) | 2016-07-22 | 2023-06-02 | 伊利诺斯工具制品有限公司 | Batch warewasher with energy retention curtain |
| CN106510583A (en) * | 2016-12-22 | 2017-03-22 | 芜湖广盈实业有限公司 | Water tank dishwasher |
| CN107550421B (en) * | 2017-09-18 | 2021-03-02 | 佛山市顺德区美的洗涤电器制造有限公司 | Water softener control method and device of dish washing machine and dish washing machine |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4233936C2 (en) * | 1992-10-08 | 1996-02-01 | Bosch Siemens Hausgeraete | Process for washing dishes |
| DE19831950C2 (en) * | 1998-07-16 | 2002-09-05 | Meiko Maschb Gmbh & Co | Machine for cleaning and disinfecting care dishes |
| US6726031B2 (en) * | 2001-02-09 | 2004-04-27 | Traex Company | Dishwasher rack construction |
| US20040250837A1 (en) * | 2003-06-13 | 2004-12-16 | Michael Watson | Ware wash machine with fluidic oscillator nozzles |
| DE102004048091A1 (en) * | 2004-09-30 | 2006-04-06 | Meiko Maschinenbau Gmbh & Co. Kg | Dishwasher with thermal aftertreatment |
| KR101052779B1 (en) * | 2006-04-07 | 2011-07-29 | 삼성전자주식회사 | Dishwashers and dishwashing methods that can be steamed |
| DE202006020579U1 (en) * | 2006-06-22 | 2009-01-08 | Premark Feg L.L.C., Wilmington | Hand-fed dishwasher |
| PL1738677T3 (en) | 2006-06-23 | 2009-03-31 | V Zug Ag | Dishwasher with steam generator and method of its operation |
| DE102007025434B3 (en) * | 2007-05-31 | 2009-01-08 | Meiko Maschinenbau Gmbh & Co.Kg | Dishwasher with water change |
-
2008
- 2008-03-11 DE DE102008013549A patent/DE102008013549A1/en not_active Withdrawn
-
2009
- 2009-03-03 CN CN200980109085.4A patent/CN101969830B/en not_active Expired - Fee Related
- 2009-03-03 CA CA2717338A patent/CA2717338C/en not_active Expired - Fee Related
- 2009-03-03 WO PCT/US2009/035841 patent/WO2009114337A1/en active Application Filing
- 2009-03-03 EP EP09719992.1A patent/EP2254453B1/en not_active Not-in-force
- 2009-03-03 US US12/921,639 patent/US20110005557A1/en not_active Abandoned
Also Published As
| Publication number | Publication date |
|---|---|
| DE102008013549A1 (en) | 2009-09-17 |
| CN101969830B (en) | 2013-05-08 |
| CA2717338C (en) | 2012-11-13 |
| WO2009114337A1 (en) | 2009-09-17 |
| US20110005557A1 (en) | 2011-01-13 |
| EP2254453B1 (en) | 2015-01-07 |
| CN101969830A (en) | 2011-02-09 |
| EP2254453A1 (en) | 2010-12-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |
Effective date: 20140304 |