WO2015127993A1 - Washer with improved energy consumption and method for controlling the same - Google Patents

Washer with improved energy consumption and method for controlling the same Download PDF

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Publication number
WO2015127993A1
WO2015127993A1 PCT/EP2014/053982 EP2014053982W WO2015127993A1 WO 2015127993 A1 WO2015127993 A1 WO 2015127993A1 EP 2014053982 W EP2014053982 W EP 2014053982W WO 2015127993 A1 WO2015127993 A1 WO 2015127993A1
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WO
WIPO (PCT)
Prior art keywords
valve
temperature
washer
mix
target
Prior art date
Application number
PCT/EP2014/053982
Other languages
French (fr)
Inventor
Gokhan Ak
Bulent Kucukcoskun
Ozgur OZTURK
Hasan Sinan AKAY
Original Assignee
Arcelik Anonim Sirketi
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 Arcelik Anonim Sirketi filed Critical Arcelik Anonim Sirketi
Priority to EP14707740.8A priority Critical patent/EP3110301A1/en
Priority to PCT/EP2014/053982 priority patent/WO2015127993A1/en
Priority to AU2014384232A priority patent/AU2014384232B2/en
Publication of WO2015127993A1 publication Critical patent/WO2015127993A1/en

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    • 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
    • A47L15/4217—Fittings for water supply, e.g. valves or plumbing means to connect to cold or warm water lines, aquastops
    • 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
    • A47L15/0047—Energy or water consumption, e.g. by saving 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
    • A47L15/42—Details
    • A47L15/4287—Temperature measuring or regulating 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
    • A47L2401/00—Automatic detection in controlling methods of washing or rinsing machines for crockery or tableware, e.g. information provided by sensors entered into controlling devices
    • A47L2401/09—Water level
    • 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
    • A47L2401/00—Automatic detection in controlling methods of washing or rinsing machines for crockery or tableware, e.g. information provided by sensors entered into controlling devices
    • A47L2401/12—Water temperature
    • 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
    • A47L2501/01—Water supply, e.g. opening or closure of the water inlet valve

Definitions

  • the present invention relates to a washer, in particular a dishwasher.
  • the present invention particularly relates to a washer which has a cold water intake and a hot water intake.
  • the present invention more particularly relates to a method of controlling a cold /hot water feeding process in a washer.
  • a conventional washer is usually provided only with a cold water intake. However, using cold water without heating may degrade the washing results. Therefore, the water taken into the washing chamber is generally heated up to a predetermined target temperature in accordance with a selected washing program.
  • a conventional washer is commonly provided with an electrical heater for heating the water taken into the washing chamber. However, this heating process results in a prolongation of the total running time of the washer and also in an increase of the overall energy consumption. In general, the temperature of the water taken into the washing chamber strongly varies according to seasonal conditions. Therefore, the total running time and the overall energy consumption may generally increase in the colder times of the year.
  • a user may connect such a washer with cold/hot water intake to the cold water mains and the in-house hot water mains to shorten operation times and reduce energy consumption.
  • DE 40 41 108 A1 discloses a dishwasher which comprises separate connections for hot water and cold water, a heater for heating the water taken into the washer and a switch for selecting different washing programs.
  • a problem with the above conventional washer is that if too much of hot water is taken into the washing chamber the articles corrode more easily under the influence of detergent or the like. On the other hand, if an insufficient amount of hot water is taken into the washing chamber, the subsequent heating process unnecessarily prolongs the total run time of the program and the overall energy consumption increases.
  • An objective of the present invention is to provide a washer and a method for controlling a washer which overcomes the aforementioned drawbacks of the prior art and which enables reliable washing results.
  • the washer of the present invention comprises a mixing valve for homogenously mixing the cold water output by a first valve for opening/closing the cold water intake and the hot water output by a second valve for opening/closing the hot water intake, a washing chamber which collects the mixed water output by the mixing valve and a temperature sensor for measuring a temperature T_mix of the mixed water.
  • the temperature sensor is arranged on a downstream side of the mixing valve.
  • a control unit of the washer controls the first valve and the second valve based on the temperature T_mix and a target temperature T_target of the mixed water.
  • the first valve and the second valve are initially both opened, and the cold and the hot water are homogenously mixed.
  • the temperature T_mix of the mixed water is monitored by the temperature sensor and compered with the target temperature T_target. Subsequently in case of a mismatch between T_mix and T_target, either the first valve or the second valve is opened while keeping the other one closed so as to attain the target temperature of the mixed water.
  • the mixed water is initially collected in an auxiliary chamber prior to discharging the same into the washing chamber to improve the mixing process.
  • the temperature of the mixed water is measured immediately on an output side of the mixing valve. In an alternative embodiment, the temperature of the mixed water is measured in the auxiliary chamber. In another alternative embodiment, the temperature of the mixed water is measured in the washing chamber.
  • T_target is determined based on a currently selected washing program. In this embodiment, T_target is a value predetermined for each washing program. In another alternative embodiment, T_target is determined based on a temperature of the cold water and a temperature of the hot water.
  • the present invention can be applied to any kind of washer, in particular a dishwasher, a clothes washer, a clothes washer/dryer or the like.
  • a washer has been provided which has an improved energy efficiency class.
  • the cold water and the hot water taken into the washer can be homogenously mixed by virtue of the mixing valve and a temperature of the mixed water can be correctly measured on a downstream side of the mixing valve.
  • a target temperature of the mixed water can be exactly attained, a prolongation of the washing programs can be prevented, and the energy consumption can be reduced.
  • Figure 1 – is a schematic view of a washer according to an embodiment of the present invention.
  • Figure 2 – is a flowchart showing a method for controlling the washer according to an embodiment of the present invention.
  • the washer (1) in particular a dishwasher, comprises a cold water intake (2) and a hot water intake (3), a first valve (4) for opening/closing the cold water intake (2), a second valve (5) for opening/closing the hot water intake (3) and a control unit (6) for individually controlling the first valve (4) and the second valve (5) (Fig. 1).
  • the washer (1) of the present invention comprises a third valve (7) for homogenously mixing the cold water which is output by the first valve (4) and the hot water which is output by the second valve (5), a washing chamber (8) for collecting the mixed water which is output by the third valve (7) and a temperature sensor (9, 9 ⁇ , 9 ⁇ ⁇ ) for measuring a temperature T_mix of the mixed water.
  • the temperature sensor (9, 9 ⁇ , 9 ⁇ ⁇ ) is arranged on a downstream side of the third valve (7) (Fig. 1).
  • the third valve (7) which is utilized in the washer (1) is a non-thermostatic mixing valve (Fig. 1).
  • the method for controlling the washer (1) comprises a step of controlling the first valve (4) and the second valve (5) based on the temperature T_mix of the mixed water which is measured by the temperature sensor (9, 9 ⁇ , 9 ⁇ ⁇ ) and a target temperature T_target of the mixed water (Fig. 2).
  • the controlling step includes a step (S1) of opening both the first valve (4) and the second valve (5), a step (S2) of measuring T_mix by using the temperature sensor (9, 9 ⁇ , 9 ⁇ ⁇ ), a step (S5, S7) of comparing T_mix with T_target, a step (S6) of closing the second valve (5) while keeping the first valve open (4) if T_mix is larger than T_target and a step (S8) of closing the first valve (4) while keeping the second valve (5) open if T_mix is smaller than T_target (Fig. 2).
  • the first valve (4) and the second valve (5) are simultaneously opened in the opening step (S1).
  • the controlling step includes a step (S4) of determining T_target.
  • T_target is determined based on a currently selected washing program, wherein T_target is a value predetermined for each washing program.
  • T_target is determined based on a temperature of the cold water received through the cold water intake (2) and a temperature of the hot water received from the hot water intake (3). Therefore, additional temperature detectors (not shown) are respectively arranged to simultaneously measure the temperature of the cold water received through the cold water intake (2) and the temperature of the hot water received from the hot water intake (3).
  • the temperature sensor (9, 9 ⁇ , 9 ⁇ ⁇ ) which is located on the downstream side of the third valve (7) is sequentially used to measure the temperature of the cold water received through the cold water intake (2) and the temperature of the hot water received from the hot water intake (3).
  • the controlling step include a step (S3) of closing both the first valve (4) and the second valve (5) if a fill level of the washing chamber (8) is reached.
  • the present invention can be applied to any kind of washer (1) such as a dishwasher, a clothes washer (not shown), a clothes washer/dryer or the like.
  • the washer (1) is provided in form of a dishwasher (Fig. 1).
  • the temperature sensor (9) is arranged to measure the temperature T_mix of the mixed water immediately at an output side of the third valve (7) (Fig. 1).
  • the temperature sensor (9 ⁇ ⁇ ) is arranged to measure the temperature T_mix of the mixed water inside the washing chamber (8) (Fig. 1).
  • the washer (1) has an auxiliary chamber (10) which is arranged on a downstream side of the third valve (7) and on an upstream side of the washing chamber (8).
  • the temperature sensor (9 ⁇ ) is arranged to measure the temperature T_mix of the mixed water inside the auxiliary chamber (10) (Fig. 1).
  • the cold water and the hot water taken into the washer (1) can be homogenously mixed by virtue of the third valve (7) and a temperature T_mix of the mixed water can be correctly measured on a downstream side of the third valve (7).
  • a target temperature T_target of the mixed water can be exactly attained, a prolongation of the washing programs can be prevented, and the energy consumption can be reduced.
  • a washer (1) has been provided which has an improved energy efficiency class.

Abstract

The present invention relates to a washer (1), in particular a dishwasher, comprising a cold water intake (2) and a hot water intake (3), a first valve (4) for opening/closing the cold water intake (2), a second valve (5) for opening/closing the hot water intake (3) and a control unit (6) for individually controlling the first valve (4) and the second valve (5) and a third valve (7) for homogenously nnixing the cold water which is output by the first valve (4) and the hot water which is output by the second valve (5).

Description

WASHER WITH IMPROVED ENERGY CONSUMPTION AND METHOD FOR CONTROLLING THE SAME
The present invention relates to a washer, in particular a dishwasher. The present invention particularly relates to a washer which has a cold water intake and a hot water intake. The present invention more particularly relates to a method of controlling a cold /hot water feeding process in a washer.
A conventional washer is usually provided only with a cold water intake. However, using cold water without heating may degrade the washing results. Therefore, the water taken into the washing chamber is generally heated up to a predetermined target temperature in accordance with a selected washing program. A conventional washer is commonly provided with an electrical heater for heating the water taken into the washing chamber. However, this heating process results in a prolongation of the total running time of the washer and also in an increase of the overall energy consumption. In general, the temperature of the water taken into the washing chamber strongly varies according to seasonal conditions. Therefore, the total running time and the overall energy consumption may generally increase in the colder times of the year.
The aforementioned adverse effects are commonly mitigated by providing a washer with an additional hot water intake. Hence, a user may connect such a washer with cold/hot water intake to the cold water mains and the in-house hot water mains to shorten operation times and reduce energy consumption.
DE 40 41 108 A1 discloses a dishwasher which comprises separate connections for hot water and cold water, a heater for heating the water taken into the washer and a switch for selecting different washing programs.
A problem with the above conventional washer is that if too much of hot water is taken into the washing chamber the articles corrode more easily under the influence of detergent or the like. On the other hand, if an insufficient amount of hot water is taken into the washing chamber, the subsequent heating process unnecessarily prolongs the total run time of the program and the overall energy consumption increases.
An objective of the present invention is to provide a washer and a method for controlling a washer which overcomes the aforementioned drawbacks of the prior art and which enables reliable washing results.
This objective has been achieved by the method according to the present invention as defined in claim 1, and the washer according to the present invention as defined in claim 7. Further achievements have been attained by the subject-matters respectively defined in the dependent claims.
The washer of the present invention comprises a mixing valve for homogenously mixing the cold water output by a first valve for opening/closing the cold water intake and the hot water output by a second valve for opening/closing the hot water intake, a washing chamber which collects the mixed water output by the mixing valve and a temperature sensor for measuring a temperature T_mix of the mixed water. The temperature sensor is arranged on a downstream side of the mixing valve. In the present invention a control unit of the washer controls the first valve and the second valve based on the temperature T_mix and a target temperature T_target of the mixed water.
In an embodiment, the first valve and the second valve are initially both opened, and the cold and the hot water are homogenously mixed. The temperature T_mix of the mixed water is monitored by the temperature sensor and compered with the target temperature T_target. Subsequently in case of a mismatch between T_mix and T_target, either the first valve or the second valve is opened while keeping the other one closed so as to attain the target temperature of the mixed water.
In another embodiment, the mixed water is initially collected in an auxiliary chamber prior to discharging the same into the washing chamber to improve the mixing process.
In another embodiment, the temperature of the mixed water is measured immediately on an output side of the mixing valve. In an alternative embodiment, the temperature of the mixed water is measured in the auxiliary chamber. In another alternative embodiment, the temperature of the mixed water is measured in the washing chamber.
In another embodiment, T_target is determined based on a currently selected washing program. In this embodiment, T_target is a value predetermined for each washing program. In another alternative embodiment, T_target is determined based on a temperature of the cold water and a temperature of the hot water. The present invention can be applied to any kind of washer, in particular a dishwasher, a clothes washer, a clothes washer/dryer or the like.
By the present invention a washer has been provided which has an improved energy efficiency class. In the present invention, the cold water and the hot water taken into the washer can be homogenously mixed by virtue of the mixing valve and a temperature of the mixed water can be correctly measured on a downstream side of the mixing valve. Thereby, a target temperature of the mixed water can be exactly attained, a prolongation of the washing programs can be prevented, and the energy consumption can be reduced.
Additional advantages of the washer of the present invention and the control method for controlling the washer of the present invention will become apparent with the detailed description of the embodiments with reference to the accompanying drawings in which:
Figure 1 – is a schematic view of a washer according to an embodiment of the present invention;
Figure 2 – is a flowchart showing a method for controlling the washer according to an embodiment of the present invention.
The reference signs appearing on the drawings relate to the following technical features.
  1. Washer
  2. Cold water intake
  3. Hot water intake
  4. First valve
  5. Second valve
  6. Control unit
  7. Third valve
  8. Washing chamber
  9. 9´ 9´´ Temperature sensor
  10. Auxiliary chamber
The washer (1), in particular a dishwasher, comprises a cold water intake (2) and a hot water intake (3), a first valve (4) for opening/closing the cold water intake (2), a second valve (5) for opening/closing the hot water intake (3) and a control unit (6) for individually controlling the first valve (4) and the second valve (5) (Fig. 1).
The washer (1) of the present invention comprises a third valve (7) for homogenously mixing the cold water which is output by the first valve (4) and the hot water which is output by the second valve (5), a washing chamber (8) for collecting the mixed water which is output by the third valve (7) and a temperature sensor (9, 9´, 9´´) for measuring a temperature T_mix of the mixed water. The temperature sensor (9, 9´, 9´´) is arranged on a downstream side of the third valve (7) (Fig. 1). The third valve (7) which is utilized in the washer (1) is a non-thermostatic mixing valve (Fig. 1).
The method for controlling the washer (1) comprises a step of controlling the first valve (4) and the second valve (5) based on the temperature T_mix of the mixed water which is measured by the temperature sensor (9, 9´, 9´´) and a target temperature T_target of the mixed water (Fig. 2).
In an embodiment, the controlling step includes a step (S1) of opening both the first valve (4) and the second valve (5), a step (S2) of measuring T_mix by using the temperature sensor (9, 9´, 9´´), a step (S5, S7) of comparing T_mix with T_target, a step (S6) of closing the second valve (5) while keeping the first valve open (4) if T_mix is larger than T_target and a step (S8) of closing the first valve (4) while keeping the second valve (5) open if T_mix is smaller than T_target (Fig. 2). In a version of this embodiment, the first valve (4) and the second valve (5) are simultaneously opened in the opening step (S1).
In another embodiment, the controlling step includes a step (S4) of determining T_target.
In a version of this embodiment, T_target is determined based on a currently selected washing program, wherein T_target is a value predetermined for each washing program.
In another version of this embodiment, T_target is determined based on a temperature of the cold water received through the cold water intake (2) and a temperature of the hot water received from the hot water intake (3). Therefore, additional temperature detectors (not shown) are respectively arranged to simultaneously measure the temperature of the cold water received through the cold water intake (2) and the temperature of the hot water received from the hot water intake (3).
In another version of this embodiment, the temperature sensor (9, 9´, 9´´) which is located on the downstream side of the third valve (7) is sequentially used to measure the temperature of the cold water received through the cold water intake (2) and the temperature of the hot water received from the hot water intake (3).
In another embodiment, the controlling step include a step (S3) of closing both the first valve (4) and the second valve (5) if a fill level of the washing chamber (8) is reached.
The present invention can be applied to any kind of washer (1) such as a dishwasher, a clothes washer (not shown), a clothes washer/dryer or the like. In an embodiment, the washer (1) is provided in form of a dishwasher (Fig. 1).
In another embodiment, the temperature sensor (9) is arranged to measure the temperature T_mix of the mixed water immediately at an output side of the third valve (7) (Fig. 1). In another alternative embodiment, the temperature sensor (9´´) is arranged to measure the temperature T_mix of the mixed water inside the washing chamber (8) (Fig. 1). In another alternative embodiment, the washer (1) has an auxiliary chamber (10) which is arranged on a downstream side of the third valve (7) and on an upstream side of the washing chamber (8). In this alternative embodiment, the temperature sensor (9´) is arranged to measure the temperature T_mix of the mixed water inside the auxiliary chamber (10) (Fig. 1).
In the present invention, the cold water and the hot water taken into the washer (1) can be homogenously mixed by virtue of the third valve (7) and a temperature T_mix of the mixed water can be correctly measured on a downstream side of the third valve (7). Thereby, a target temperature T_target of the mixed water can be exactly attained, a prolongation of the washing programs can be prevented, and the energy consumption can be reduced. By the present invention a washer (1) has been provided which has an improved energy efficiency class.

Claims (10)

  1. A method for controlling a washer (1) comprising a cold water intake (2) and a hot water intake (3), a first valve (4) for opening/closing the cold water intake (2), a second valve (5) for opening/closing the hot water intake (3), a control unit (6) for individually controlling the first valve (4) and the second valve (5), a third valve (7) for homogenously mixing the cold water which is output by the first valve (4) and the hot water which is output by the second valve (5), a washing chamber (8) for collecting the mixed water which is output by the third valve (7) and a temperature sensor (9, 9´, 9´´) for measuring a temperature T_mix of the mixed water, wherein the temperature sensor (9, 9´, 9´´) is arranged on a downstream side of third valve (7), the method being characterized by comprising
    a step of controlling the first valve (4) and the second valve (5) based on the temperature T_mix and a target temperature T_target of the mixed water.
  2. The method according to claim 1, characterized in that the controlling step includes
    a step (S1) of opening both the first valve (4) and the second valve (5),
    a step (S2) of measuring T_mix by using the temperature sensor (9, 9´, 9´´),
    a step (S5, S7) of comparing T_mix with T_target,
    a step (S6) of closing the second valve (5) while keeping the first valve open (4) if T_mix is larger than T_target and
    a step (S8) of closing the first valve (4) while keeping the second valve (5) open if T_mix is smaller than T_target.
  3. The method according to claim 1 or 2, characterized in that the controlling step includes a step (S4) of determining T_target.
  4. The method according to claim 3, characterized in that in the determining step (S4) T_target is determined based on a currently selected washing program, wherein T_target is a value predetermined for each washing program.
  5. The method according to claim 3, characterized in that in the determining step (4) the T_target is determined based on a temperature of the cold water received through the cold water intake (2) and a temperature of the hot water received from the hot water intake (3).
  6. The method according to any one of claims 1 to 5, characterized in that the controlling step includes a step (S3) of closing both the first valve (4) and the second valve (5) if a fill level of the washing chamber (8) is reached.
  7. A washer (1), in particular a dishwasher, comprising
    - a cold water intake (2) and a hot water intake (3),
    - a first valve (4) for opening/closing the cold water intake (2),
    - a second valve (5) for opening/closing the hot water intake (3) and
    - a control unit (6) for individually controlling the first valve (4) and the second valve (5),
    the washer (1) being characterized by further comprising
    -a third valve (7) for homogenously mixing the cold water which is output by the first valve (4) and the hot water which is output by the second valve (5),
    - a washing chamber (8) for collecting the mixed water which is output by the third valve (7) and
    - a temperature sensor (9, 9´, 9´´) for measuring a temperature T_mix of the mixed water, the temperature sensor (9, 9´, 9´´) being arranged on a downstream side of the third valve (7), wherein the control unit (6) is configured to execute the method steps defined in any one of claims 1 to 6.
  8. The washer (1) according to claim 7, characterized in that the temperature sensor (9) is arranged to measure the temperature T_mix of the mixed water immediately at an output side of the third valve (7).
  9. The washer (1) according to claim 7, characterized by further comprising an auxiliary chamber (10) which is arranged on a downstream side of the the third valve (7) and on an upstream side of the washing chamber (8), wherein the temperature sensor (9´) is arranged to measure the temperature T_mix of the mixed water inside the auxiliary chamber (10).
  10. The washer (1) according to claim 7, characterized in that the temperature sensor (9´´) is arranged to measure the temperature T_mix of the mixed water inside the washing chamber (8).
PCT/EP2014/053982 2014-02-28 2014-02-28 Washer with improved energy consumption and method for controlling the same WO2015127993A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP14707740.8A EP3110301A1 (en) 2014-02-28 2014-02-28 Washer with improved energy consumption and method for controlling the same
PCT/EP2014/053982 WO2015127993A1 (en) 2014-02-28 2014-02-28 Washer with improved energy consumption and method for controlling the same
AU2014384232A AU2014384232B2 (en) 2014-02-28 2014-02-28 Washer with improved energy consumption and method for controlling the same

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Application Number Priority Date Filing Date Title
PCT/EP2014/053982 WO2015127993A1 (en) 2014-02-28 2014-02-28 Washer with improved energy consumption and method for controlling the same

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4406401A (en) * 1979-12-31 1983-09-27 General Electric Company Water temperature control system for a washing machine
DE19637610A1 (en) * 1996-09-16 1998-03-19 Joerg Hoenicke Combined hot and cold water supply for washing machines
US6003182A (en) * 1997-06-11 1999-12-21 Daewoo Electronics Co., Ltd. Method for maintaining set temperature of wash water of clothes washer
US6499321B1 (en) * 1999-12-08 2002-12-31 Fisher & Paykel Limited Laundry machine and/or methods
DE10226736A1 (en) * 2001-06-19 2003-01-02 Marquardt Gmbh Arrangement for controlling and/or regulating temperature in water feed for domestic device has adjustable mixer valve fed by cold and hot water lines, single output line from mixer valve
WO2003097922A1 (en) * 2002-05-21 2003-11-27 BSH Bosch und Siemens Hausgeräte GmbH Water-guiding domestic appliance, in particular a washing machine
EP1683904A1 (en) * 2005-01-25 2006-07-26 BSH Bosch und Siemens Hausgeräte GmbH Method for controlling the temperature of mixed water
EP2292133A2 (en) * 2009-09-03 2011-03-09 BSH Bosch und Siemens Hausgeräte GmbH Dishwasher and method for performing a washing cycle with a dishwasher

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4406401A (en) * 1979-12-31 1983-09-27 General Electric Company Water temperature control system for a washing machine
DE19637610A1 (en) * 1996-09-16 1998-03-19 Joerg Hoenicke Combined hot and cold water supply for washing machines
US6003182A (en) * 1997-06-11 1999-12-21 Daewoo Electronics Co., Ltd. Method for maintaining set temperature of wash water of clothes washer
US6499321B1 (en) * 1999-12-08 2002-12-31 Fisher & Paykel Limited Laundry machine and/or methods
DE10226736A1 (en) * 2001-06-19 2003-01-02 Marquardt Gmbh Arrangement for controlling and/or regulating temperature in water feed for domestic device has adjustable mixer valve fed by cold and hot water lines, single output line from mixer valve
WO2003097922A1 (en) * 2002-05-21 2003-11-27 BSH Bosch und Siemens Hausgeräte GmbH Water-guiding domestic appliance, in particular a washing machine
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