EP2049723B1 - Determination of the water storage capacity of textiles in a washing machine, and corresponding washing machine - Google Patents
Determination of the water storage capacity of textiles in a washing machine, and corresponding washing machine Download PDFInfo
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- EP2049723B1 EP2049723B1 EP07730068A EP07730068A EP2049723B1 EP 2049723 B1 EP2049723 B1 EP 2049723B1 EP 07730068 A EP07730068 A EP 07730068A EP 07730068 A EP07730068 A EP 07730068A EP 2049723 B1 EP2049723 B1 EP 2049723B1
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- textiles
- phase
- rinsing
- water
- storage capacity
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F34/00—Details of control systems for washing machines, washer-dryers or laundry dryers
- D06F34/14—Arrangements for detecting or measuring specific parameters
- D06F34/18—Condition of the laundry, e.g. nature or weight
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
- D06F2103/18—Washing liquid level
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
- D06F2105/46—Drum speed; Actuation of motors, e.g. starting or interrupting
- D06F2105/48—Drum speed
Definitions
- the invention relates to a method for determining the water storage capacity of textiles in a washing machine, which is equipped with means for driving a laundry drum rotatably mounted in a tub and for controlling a wetting phase and a rinsing phase of a washing process, wherein the rinsing phase has at least one rinsing sequence, the one Dehumidification sequence follows.
- the invention also relates to a washing machine comprising a control device which is set up for determining the water storage capacity of textiles and for controlling a wetting phase and a rinsing phase of a washing process, wherein the rinsing phase has at least one rinsing sequence following a dehumidifying sequence, and comprising a lye container, one in the tub rotatably mounted laundry drum for receiving the textiles and means for driving the laundry drum.
- Textiles differ greatly in their water storage capacity, for example, depending on the type of textile fiber, the textile fabric obtained from it, the packaging and not least the textile equipment.
- Unfitted vegetable or animal natural fiber textiles can absorb up to several times their own weight in water and can be found in the fiber structures - eg. B. in fiber spaces and capillaries - store. The absorbed water leads u.a. to a swelling of the fibers.
- textiles may be rendered hydrophobic (water repellent, e.g., by impregnation) or hydrophilic (water-loving) via the surface finish.
- EP-A1-0787848 discloses a method for determining the water-repellency of textiles in a washing machine, wherein a water uptake of the textiles in the wetting phase is measured.
- the different phases of a cleaning process are based on the preset program and the parameters measured directly in the respective phase.
- the spin phase for example, parameters such as load quantity (drum runtime measurement), imbalance, etc. measured and introduced into the phase control.
- load quantity drum runtime measurement
- imbalance etc. measured and introduced into the phase control.
- the spinning process is aimed at the maximum water storage capacity (long time, high system load), although many textiles could be dehumidified much faster. This alignment with the maximum water storage capacity also applies to the rinsing phase. Since the exchange of water is difficult for textiles with high water retention capacity during rinsing, because of the assumption of a maximum water retention capacity is often rinsed more intensive and dehumidified than necessary.
- a method and a washing machine of the type defined above are specified.
- the invention consists in first measuring a water absorption of textiles in the wetting phase, to the beginning of which they are still dry. Thereafter, in at least one rinsing sequence of the rinsing phase, a water absorption of the textiles previously subjected to a dehumidifying phase but still remaining wet is measured. Following this, the measurements from both phases are compared. As for textiles with high water storage capacity (eg due to high retention capacity and / or high tendency to swell) significant differences in water absorption behavior compared to textiles with low water storage capacity result, the water storage capacity can be determined based on the comparison.
- the particular water storage capacity can be included in the following cleaning sections, especially rinsing and spin sequences for control.
- the water storage capacity can also be used to control their existing dry phase. Due to the frequently reduced requirement in the individual phases (rinsing time, spin speed, etc.), textiles, in particular with a low water absorption, can be treated more gently. For example, textiles with low water absorption need not be rinsed for so long to remove detergent residues. Also often does not need to be so intense and / or long to be spun or dried. In addition, water and electricity can be saved. Also, the load on the washing machine decreases, which increases its service life.
- From the water storage capacity can be closed, especially in temporally resolved measurement, basically on the type of textile, z.
- hydrophobic or hydrophilic character the nature of the textile fiber, the fabric obtained therefrom and the packaging / or the textile equipment.
- the individual phases can also be controlled depending on the type of textile.
- the water absorption of the textiles is conveniently measured by determining the liquor volume necessary to reach a certain level of the liquor in the tub (level-based filling).
- the level can by conventional means such as a water level or pressure measurement by accordingly arranged sensors are determined.
- more liquor supplied will generally be needed to reach the same level than textiles with low water absorption capacity. This measurement can also be resolved in time.
- the water uptake can be measured by measuring the liquor level after filling with a certain volume of liquor, this also temporally resolved if necessary.
- the invention also includes a method for rinsing textiles, which is based on the above-described method for determining the water storage capacity, wherein additionally at least one rinsing sequence following the rinsing sequence used for measuring the water absorption is set as a function of the water storage capacity or the textile type.
- the frame time of the following rinsing sequences is reduced compared to textiles with high water retention capacity, since the lower water retention allows easier water exchange.
- the following dehumidifying sequences can then be conveniently set depending on the water storage capacity, in particular so that the frame time and / or speed of the subsequent Eisenentfeuchtungssequenz is increased in textiles with a high water storage capacity compared to textiles with low water storage capacity.
- the invention further comprises a method for spinning textiles, wherein the above-described method for determining the water storage capacity is performed prior to a spin phase for spinning the textiles, and further the spin phase is adjusted depending on the water storage capacity.
- the spin frame time and / or the final spin speed can be increased in comparison with textiles with low water retention capacity in order to ensure the desired degree of dehumidification.
- a washing machine for selectively carrying out the above-mentioned method, which is equipped with a suitable, in particular electronic, for example, programmed control unit, in which advantageously an expert system is implemented.
- a suitable, in particular electronic, for example, programmed control unit in which advantageously an expert system is implemented.
- an expert system for example, typical water absorption parameters (temporally resolved if necessary) for various types of textile can be stored, from which the type of textile is deduced during operation by comparison with the measured values.
- the tub 1 in Fig. 1 contains a stored therein about a horizontal axis 3 washing drum 2 with carriers 4 for existing laundry textiles 7.
- the driver 4 have scooping devices with which located below in the tub 1 lye 6 during rotation of the laundry drum 2 in the direction of arrow 16 from a level Nv , which is above the lowest point of the laundry drum 2, scooped up, raised to a level above the laundry 7 and can be rained from the top of the laundry 7. As a result, the wetting and flooding of the laundry 7 is accelerated.
- an electric motor 14 To rotate the laundry drum 2 is an electric motor 14, which initiates its rotational movement via a belt transmission in the laundry drum 2.
- a heater 13 which serves to heat the liquor.
- This liquor 6 passes by operating one of the solenoid valves 8 or 9 in the tub 1 and consists either only of water or a mixture of water and detergent.
- In the Waschstoffein réelle Spur 11 two chambers 111 and 112 are shown, which are each traversed by the opening of the associated solenoid valve of fresh water.
- Auxiliary washing agents, which are located in the chambers are then transferred from the water through the line 10 from the Waschstoffein Kunststofftechnisch vibration in the tub 1.
- Lye 6, which is located at the bottom of the tub 1, can be transported through the drain line 17 and the pump 18 in a manner not shown here to the outside.
- All switchable or controllable devices such as the solenoid valves 8 and 9, the heater 13, the drum drive motor 14 and the drain pump 18 are switched or controlled by the controller 12 of the washing machine.
- a water level sensor 15 For measuring the level of the liquor 6 also serves a water level sensor 15, which passes its measuring signals via the reporting line to an evaluation device 121 in the control device 12.
- the evaluation device 121 comprises an expert system in which typical water intake parameters (temporally resolved if necessary) are stored. By comparing the values measured during operation with the stored values, it is possible, for example, to deduce the type of textile.
- a comparison possibility consists in comparing the difference curve of the water level between wetting phase and rinsing sequence with a stored curve. In a further comparison possibility, only individual values are compared, such as the liquor volume after reaching a certain level N v .
- Other types of evaluations or expert systems may be used, e.g. B. including fuzzy logic.
- the in Fig. 1 illustrated washing machine for example, operated as it is in the Fig. 2 to 5 is shown.
- the scale on the ordinate applies only to the speed of the laundry drum 2; the supplied liquor volume V is assigned no scale.
- the solenoid valve 8 is first opened in order to fill the tub 1 with the washing agent-filled detergent chamber 111 and the line 10.
- the water carries the detergent with in the tub 1, where it is distributed. Together they form the wash liquor.
- the laundry drum 2 according to the fat continuous diagram line n is initially driven only at a low speed (eg 23 rpm).
- the laundry drum 2 is continuously reversibly driven with, for example, 50 rpm, so that the laundry comes into intensive contact with the wash liquor already heated during the wetting phase PhB.
- the wash liquor can optionally be pumped off.
- PhSp contains alternating (intermediate) dehumidification sequences SeqE1, SeqE2, SeqE3 and purge sequences SeqS1, SeqS2, SeqS3.
- the liquor is pumped out by operating the drain pump and the laundry gently flung for their gentle dehumidification with a low Scheudercraftzal the washing drum, so that contained in the textiles residual liquor is largely pushed out.
- fresh water is supplied for further dilution of the liquor, in which residues of residual detergent are still bound, for example by an already emptied detergent chamber.
- the number of rinsing sequences SeqS1, SeqS2, SeqS3 must be set to the required dilution.
- the fresh water can optionally also be exchanged several times during a flushing sequence SeqS2, SeqS3.
- the first rinsing sequence SeqS1 during which the water absorption of the textiles is measured by determining the fresh water volume V necessary to achieve the liquor level N v , is similar to the wetting phase PhB. In this way, similar to the measurement of the water absorption capacity in the wetting phase, the water retention capacity of the same laundry item is measured with already wetted laundry.
- the water absorption measured therein is compared with the water absorption determined from the wetting phase PhB, and from this the water storage capacity or type of textile is determined.
- the operating parameters speed, purging duration, etc.
- Spin phase PhSch-N shown for spinning laundry or textiles with low water absorbency comprises a first main spinner block B1-N, in which the spin start in the lower area is slow (waiting / Schleuderplateau SHL), since there are high amounts of water. With average slow spin start-up remains sufficient Time to pump off the resulting spin water fast enough. In the upper area (further increase in the spin speed and upper plateau) can be accelerated accordingly faster. The final spin speed and spin frame time may be reduced compared to spinning high-water textiles.
- the spin phase PhSch-N in this embodiment comprises an optional further main spin block B2-N, which starts because of the already done removal of water without slow spin-up (SHL). The number and shape of the spin sequences must be set to the required dehumidification.
- a spin phase PhSch-H shown in to Fig. 4 corresponding proportions is shown.
- the main spinner block B1-H is over the entire spin start-up - for the same reason as in the block B1-N in Fig. 4 and especially at high water retention capacity - compared to B2-N in the spin phase PhSch-N slowly started up.
- the absolute spin speeds and spin frame times are still comparatively high compared to B1-N.
- the main spinner block B1-H is preceded by a pre-dewatering phase BV-H, which has a number of pre-dewatering peaks (spin pulses) at a comparatively low speed.
- the number and shape of the spin sequences must be set to the required dehumidification; in particular, with high water retention capacity, a plurality of main spin blocks B1-H, B2-H are favorable, the number and shape of which depends on the conditions actually recognized.
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Abstract
Description
Die Erfindung betrifft ein Verfahren zur Bestimmung des Wasserspeichervermögens von Textilien in einer Waschmaschine, die mit Einrichtungen zum Antreiben einer in einem Laugenbehälter drehbar gelagerten Wäschetrommel sowie zum Steuern einer Benetzungsphase und einer Spülphase eines Waschvorgangs ausgestattet ist, wobei die Spülphase mindestens eine Spülsequenz aufweist, die einer Entfeuchtungssequenz folgt.The invention relates to a method for determining the water storage capacity of textiles in a washing machine, which is equipped with means for driving a laundry drum rotatably mounted in a tub and for controlling a wetting phase and a rinsing phase of a washing process, wherein the rinsing phase has at least one rinsing sequence, the one Dehumidification sequence follows.
Die Erfindung betrifft auch eine Waschmaschine umfassend eine Steuereinrichtung, welche eingerichtet ist zur Bestimmung des Wasserspeichervermögens von Textilien sowie zum Steuern einer Benetzungsphase und einer Spülphase eines Waschvorgangs, wobei die Spülphase mindestens eine einer Entfeuchtungssequenz folgende Spülsequenz aufweist, sowie umfassend einen Laugenbehälter, eine in dem Laugenbehälter drehbar gelagerte Wäschetrommel zum Aufnehmen der Textilien sowie Einrichtungen zum Antreiben der Wäschetrommel.The invention also relates to a washing machine comprising a control device which is set up for determining the water storage capacity of textiles and for controlling a wetting phase and a rinsing phase of a washing process, wherein the rinsing phase has at least one rinsing sequence following a dehumidifying sequence, and comprising a lye container, one in the tub rotatably mounted laundry drum for receiving the textiles and means for driving the laundry drum.
Textilien unterscheiden sich stark in ihrem Wasserspeichervermögen, beispielsweise abhängig von der Art der Textilfaser, dem daraus gewonnenen textilen Flächengebilde, der Konfektionierung und nicht zuletzt der textile Ausrüstung. So können unausgerüstete pflanzliche oder tierische Naturfasertextilien bis zu einem Mehrfachen ihres Eigengewichtes an Wasser aufnehmen und in den Faserstrukturen - z. B. in Faserzwischenräumen und Kapillaren - speichern. Das aufgenommene Wasser führt u.a. zu einem Quellen der Fasern. Auch können Textilien über die Oberflächen-Ausrüstung hydrophob (wasserabweisend, z.B. durch Imprägnierung) oder hydrophil (wasserliebend) eingestellt werden.Textiles differ greatly in their water storage capacity, for example, depending on the type of textile fiber, the textile fabric obtained from it, the packaging and not least the textile equipment. Unfitted vegetable or animal natural fiber textiles can absorb up to several times their own weight in water and can be found in the fiber structures - eg. B. in fiber spaces and capillaries - store. The absorbed water leads u.a. to a swelling of the fibers. Also, textiles may be rendered hydrophobic (water repellent, e.g., by impregnation) or hydrophilic (water-loving) via the surface finish.
Das Dokument
Bisher basieren die verschiedenen Phasen eines Reinigungsvorgangs (typischerweise in der Reihenfolge: Benetzungsphase - Waschphase - Spülphase - Schleuderphase) auf dem voreingestellten Programm und den direkt in der jeweiligen Phase gemessenen Parametern. In der Schleuderphase beispielsweise können Parameter wie Beladungsmenge (Trommelauslaufzeitmessung), Unwucht etc. gemessen und in die Phasensteuerung eingebracht werden. Dabei ist zur Sicherstellung einer guten Entfeuchtung der Schleudervorgang am maximalen Wasserspeichervermögen (lange Zeit, hohe Systembelastung) ausgerichtet, obwohl viele Textilien wesentlich schneller entfeuchtet werden könnten. Diese Ausrichtung am maximalen Wasserspeichervermögen gilt auch für die Spülphase. Da der Wasseraustausch bei Textilien mit hohem Wasserrückhaltevermögen beim Spülen erschwert ist, wird wegen der Annahme eines maximalen Wasserrückhaltevermögens häufig intensiver gespült und entfeuchtet als notwendig.So far, the different phases of a cleaning process (typically in the order: wetting phase - washing phase - rinse phase - spin phase) are based on the preset program and the parameters measured directly in the respective phase. In the spin phase, for example, parameters such as load quantity (drum runtime measurement), imbalance, etc. measured and introduced into the phase control. In order to ensure a good dehumidification, the spinning process is aimed at the maximum water storage capacity (long time, high system load), although many textiles could be dehumidified much faster. This alignment with the maximum water storage capacity also applies to the rinsing phase. Since the exchange of water is difficult for textiles with high water retention capacity during rinsing, because of the assumption of a maximum water retention capacity is often rinsed more intensive and dehumidified than necessary.
Es ist die Aufgabe der vorliegenden Erfindung, eine Möglichkeit zum wirtschaftlicheren und langlebigeren Betrieb einer Waschmaschine bereitzustellen, der außerdem textilschonender und Zeit sparender ist. Dazu sollen sowohl ein Verfahren als auch eine Waschmaschine jeweils der eingangs definierten Gattung angegeben werden.It is the object of the present invention to provide a way to more economical and durable operation of a washing machine, which is also more textile-friendly and time-saving. For this purpose, both a method and a washing machine of the type defined above are specified.
Zur Lösung dieser Aufgabe angegeben werden ein Verfahren gemäß unabhängigem Patentanspruch 1 sowie eine Waschmaschine gemäß unabhängigem Patentanspruch 15. Bevorzugte Ausgestaltungen der Erfindung sind angegeben in den abhängigen Patentansprüchen. Bevorzugten Ausgestaltungen des erfindungsgemäßen Verfahrens und bevorzugte Ausgestaltungen der erfindungsgemäßen Waschmaschine, insbesondere deren entsprechend eingerichteter, zum Beispiel programmierter Steuereinrichtung, entsprechen einander, auch wenn dies nicht in jedem Einzelfall explizit angegeben ist.To achieve this object, a method according to
Die Erfindung besteht darin, zunächst eine Wasseraufnahme von Textilien in der Benetzungsphase zu messen, zu deren Anfang sie noch trocken sind. Danach wird in mindestens einer Spülsequenz der Spülphase eine Wasseraufnahme der zuvor einer Entfeuchtungsphase unterworfenen, aber noch restfeuchten Textilien gemessen. Im Anschluss daran werden die Messungen aus beiden Phasen verglichen. Da sich bei Textilien mit hohem Wasserspeichervermögen (z. B. aufgrund hohen Rückhaltevermögens und/oder hoher Quellneigung) deutliche Unterschiede im Wasseraufnahmeverhalten gegenüber Textilien mit geringem Wasserspeichervermögen ergeben, kann anhand des Vergleichs das Wasserspeichervermögen bestimmt werden.The invention consists in first measuring a water absorption of textiles in the wetting phase, to the beginning of which they are still dry. Thereafter, in at least one rinsing sequence of the rinsing phase, a water absorption of the textiles previously subjected to a dehumidifying phase but still remaining wet is measured. Following this, the measurements from both phases are compared. As for textiles with high water storage capacity (eg due to high retention capacity and / or high tendency to swell) significant differences in water absorption behavior compared to textiles with low water storage capacity result, the water storage capacity can be determined based on the comparison.
Das bestimmte Wasserspeichervermögen kann bei folgenden Reinigungsabschnitten, insbesondere Spül- und Schleudersequenzen, zur Steuerung einbezogen werden. Das Wasserspeichervermögen kann bei einer vorhandenen Trockenphase auch zu ihrer Regelung verwendet werden. Durch die häufig reduzierten Anforderung in den einzelnen Phasen (Spüldauer, Schleuderdrehzahl usw.) lassen sich Textilien, insbesondere mit einer geringen Wasseraufnahme, schonender behandeln. Beispielweise brauchen Textilien mit geringer Wasseraufnahme nicht so lange gespült zu werden, um Waschmittelreste zu entfernen. Auch braucht häufig nicht so intensiv und /oder lange geschleudert oder getrocknet zu werden. Zudem kann Wasser und Strom eingespart werden. Auch sinkt die Belastung der Waschmaschine, was ihre Lebensdauer erhöht.The particular water storage capacity can be included in the following cleaning sections, especially rinsing and spin sequences for control. The water storage capacity can also be used to control their existing dry phase. Due to the frequently reduced requirement in the individual phases (rinsing time, spin speed, etc.), textiles, in particular with a low water absorption, can be treated more gently. For example, textiles with low water absorption need not be rinsed for so long to remove detergent residues. Also often does not need to be so intense and / or long to be spun or dried. In addition, water and electricity can be saved. Also, the load on the washing machine decreases, which increases its service life.
Aus dem Wasserspeichervermögen kann, speziell bei zeitlich aufgelöster Messung, grundsätzlich auf die Textilart geschlossen werden, z. B. auf hydrophoben oder hydrophilen Charakter, die Art der Textilfaser, das daraus gewonnene textile Flächengebilde und die Konfektionierung / oder die textile Ausrüstung. Die einzelnen Phasen können auch in Abhängigkeit von der Textilart gesteuert werden.From the water storage capacity can be closed, especially in temporally resolved measurement, basically on the type of textile, z. As hydrophobic or hydrophilic character, the nature of the textile fiber, the fabric obtained therefrom and the packaging / or the textile equipment. The individual phases can also be controlled depending on the type of textile.
Es ist zum einfacheren Vergleichen aufgrund ähnlicher Rahmenbedingungen vorteilhaft, wenn die Spülsequenz, in der die Wasseraufnahme gemessen wird, ähnlich der Benetzungsphase ist.It is advantageous for ease of comparison due to similar constraints when the purge sequence in which the water uptake is measured is similar to the wetting phase.
Es ist vorteilhaft, wenn die Wasseraufnahme der Textilien in der Spülphase in der der ersten Entfeuchtungssequenz folgenden Spülsequenz gemessen wird, weil so die folgenden Spülsequenzen bereits an das Wasserspeichervermögen bzw. die Textilart angepasst werden können.It is advantageous if the water absorption of the textiles in the rinsing phase is measured in the rinsing sequence following the first dehydration sequence, because in this way the following rinsing sequences can already be adapted to the water storage capacity or type of textile.
Die Wasseraufnahme der Textilien wird günstigerweise durch Bestimmen des zum Erreichen eines bestimmten Niveaus der Lauge im Laugenbehälter notwendigen Laugenvolumens gemessen (niveaugestütztes Füllen). Das Niveau kann mit üblichen Mitteln wie einer Wasserstands- bzw. Druckmessung durch entsprechend angeordnete Sensoren bestimmt werden. Bei Textilien mit hohem Wasseraufnahmevermögen wird in der Regel mehr zugeführte Lauge zum Erreichen des gleichen Niveaus benötigt werden als bei Textilien mit geringem Wasseraufnahmevermögen. Diese Messung kann auch zeitlich aufgelöst werden.The water absorption of the textiles is conveniently measured by determining the liquor volume necessary to reach a certain level of the liquor in the tub (level-based filling). The level can by conventional means such as a water level or pressure measurement by accordingly arranged sensors are determined. For textiles with high water absorption capacity, more liquor supplied will generally be needed to reach the same level than textiles with low water absorption capacity. This measurement can also be resolved in time.
Alternativ kann die Wasseraufnahme durch Messung des Laugen-Niveaus nach Befüllen mit einem bestimmten Laugenvolumen gemessen werden, auch dies bei Bedarf zeitlich aufgelöst.Alternatively, the water uptake can be measured by measuring the liquor level after filling with a certain volume of liquor, this also temporally resolved if necessary.
Die Erfindung umfasst auch ein Verfahren zum Spülen von Textilen, das auf dem oben beschriebenen Verfahren zur Bestimmung des Wasserspeichervermögens beruht, wobei zusätzlich mindestens eine auf die zur Messung der Wasseraufnahme verwendete Spülsequenz folgende Spülsequenz in Abhängigkeit vom Wasserspeichervermögen bzw. der Textilart eingestellt wird.The invention also includes a method for rinsing textiles, which is based on the above-described method for determining the water storage capacity, wherein additionally at least one rinsing sequence following the rinsing sequence used for measuring the water absorption is set as a function of the water storage capacity or the textile type.
Dabei ist es vorteilhaft, wenn bei Textilien mit niedrigem Wasserspeichervermögen bzw. Wasserrückhaltevermögen die Rahmenzeit der folgenden Spülsequenzen im Vergleich zu Textilien mit hohen Wasserrückhaltevermögen verringert ist, da das geringere Wasserrückhaltevermögen einen einfacheren Wasseraustausch ermöglicht. Auch können dann günstigerweise darauf folgende Entfeuchtungssequenzen in Abhängigkeit vom Wasserspeichervermögen eingestellt werden, insbesondere so, dass bei Textilien mit einem hohen Wasserspeichervermögen die Rahmenzeit und/oder Drehzahl der darauf folgenden Zwischenentfeuchtungssequenz im Vergleich zu Textilien mit niedrigem Wasserspeichervermögen erhöht ist.It is advantageous if textiles with low water storage capacity or water retention capacity, the frame time of the following rinsing sequences is reduced compared to textiles with high water retention capacity, since the lower water retention allows easier water exchange. The following dehumidifying sequences can then be conveniently set depending on the water storage capacity, in particular so that the frame time and / or speed of the subsequent Zwischenentfeuchtungssequenz is increased in textiles with a high water storage capacity compared to textiles with low water storage capacity.
Die Erfindung umfasst weiterhin ein Verfahren zum Schleudern von Textilien, bei dem das oben beschriebenen Verfahren zur Bestimmung des Wasserspeichervermögens vor einer Schleuderphase zum Schleudern der Textilien durchgeführt wird, und weiterhin die Schleuderphase in Abhängigkeit von dem Wasserspeichervermögen eingestellt wird. Insbesondere kann bei Textilien mit einem hohen Wasserspeichervermögen bzw. Wasserrückhaltevermögen die Schleuderrahmenzeit und / oder die Endschleuderdrehzahl im Vergleich zu Textilien mit niedrigem Wasserrückhaltevermögen erhöht sein, um den gewünschten Entfeuchtungsgrad sicherzustellen. Speziell bei solchen Textilien ist es auch vorteilhaft, wenn am Beginn der Schleuderphase mindestens eine Vorentwässerung mit entsprechenden Vorentwässerungs-Schleuderpeaks durchgeführt wird und / oder mehrere Hauptschleuderblöcke vorgesehen sind.The invention further comprises a method for spinning textiles, wherein the above-described method for determining the water storage capacity is performed prior to a spin phase for spinning the textiles, and further the spin phase is adjusted depending on the water storage capacity. In particular, for textiles with a high water storage capacity or water retention capacity, the spin frame time and / or the final spin speed can be increased in comparison with textiles with low water retention capacity in order to ensure the desired degree of dehumidification. Especially with such textiles, it is also advantageous if at the beginning the spin phase is carried out at least one pre-dewatering with corresponding pre-dewatering slinging peaks and / or several main slingshot blocks are provided.
Ebenfalls durch die Erfindung umfasst ist eine Waschmaschine zur wahlweisen Durchführung der oben genannten Verfahren, die mit einer geeigneten, insbesondere elektronischen, beispielsweise programmierten Steuereinheit ausgerüstet ist, in die vorteilhafterweise ein Expertensystem implementiert ist. Im Expertensystem können beispielsweise für verschiedene Textilarten typische Wasseraufnahmeparameter (bei Bedarf zeitlich aufgelöst) gespeichert sein, aus denen im Betrieb durch Vergleich mit den gemessenen Werten auf die Textilart zurückgeschlossen wird.Also included by the invention is a washing machine for selectively carrying out the above-mentioned method, which is equipped with a suitable, in particular electronic, for example, programmed control unit, in which advantageously an expert system is implemented. In the expert system, for example, typical water absorption parameters (temporally resolved if necessary) for various types of textile can be stored, from which the type of textile is deduced during operation by comparison with the measured values.
Anhand eines in der Zeichnung dargestellten Ausführungsbeispiels ist die Erfindung nachstehend erläutert. Es zeigen
- Fig. 1
- eine schematisch dargestellte Waschmaschine mit einem Laugenbehälter und einer darin gelagerten Wäschetrommel für die Aufnahme von Textilien,
- Fig. 2
- ein Diagramm für den zeitlichen Ablauf eines Waschvorgangs als erster Teil des vollständigen Reinigungsprozesses,
- Fig. 3
- ein Diagramm für den zeitlichen Ablauf des unmittelbar an den Waschvorgang anschließenden erfindungsgemäßen Verfahrens zum Spülen der eben gewaschenen Textilien,
- Fig. 4
- ein Diagramm für den zeitlichen Ablauf des unmittelbar an den Spülgang anschließenden erfindungsgemäßen Verfahrens zum Schleudern der eben gewaschenen Textilien, die eine niedrige Wasseraufnahme zeigen, und
- Fig. 5
- ein Diagramm für den zeitlichen Ablauf des unmittelbar an den Spülgang anschließenden erfindungsgemäßen Verfahrens zum Schleudern der eben gewaschenen Textilien, die eine hohe Wasseraufnahme zeigen.
- Fig. 1
- a schematically illustrated washing machine with a tub and a drum mounted therein for receiving textiles,
- Fig. 2
- a diagram for the timing of a washing process as the first part of the complete cleaning process,
- Fig. 3
- a diagram for the timing of the immediately subsequent to the washing process according to the invention for rinsing the newly washed textiles,
- Fig. 4
- a diagram for the timing of the immediately following the rinse process according to the invention for spinning the newly washed textiles, which show a low water absorption, and
- Fig. 5
- a diagram for the timing of the immediately following the rinse process of the invention for Skidding of newly washed textiles showing a high water absorption.
Der Laugenbehälter 1 in
Am Boden des Laugenbehälters 1 ist eine Heizeinrichtung 13 angeordnet, die zur Beheizung der Lauge dient. Diese Lauge 6 gelangt durch Betätigung eines der Magnetventile 8 oder 9 in den Laugenbehälter 1 und besteht entweder nur aus Wasser oder aus einem Gemisch von Wasser und Waschhilfsmittel. In der Waschmitteleinspüleinrichtung 11 sind zwei Kammern 111 und 112 dargestellt, die jeweils beim Öffnen des zugeordneten Magnetventils von Frischwasser durchflossen werden. Waschhilfsmittel, die sich in den Kammern befinden, werden dann vom Wasser durch die Leitung 10 hindurch aus der Waschmitteleinspüleinrichtung 11 in den Laugenbehälter 1 überführt. Lauge 6, die sich am Boden des Laugenbehälters 1 befindet, kann durch die Abflussleitung 17 und die Pumpe 18 in hier nicht näher dargestellter Weise nach außen befördert werden.At the bottom of the
Alle schalt- oder steuerbaren Einrichtungen, wie die Magnetventile 8 und 9, die Heizeinrichtung 13, der Trommelantriebsmotor 14 und die Laugenpumpe 18, werden von der Steuereinrichtung 12 der Waschmaschine geschaltet oder gesteuert. Zur Messung des Niveaus der Lauge 6 dient außerdem ein Wasserstandgeber 15, der seine Messsignale über die Meldeleitung an eine Auswerteeinrichtung 121 in der Steuereinrichtung 12 leitet.All switchable or controllable devices, such as the
Bei erfindungsgemäßer Ausgestaltung der Waschmaschine umfasst die Auswerteeinrichtung 121 ein Expertensystem, in dem typische Wasseraufnahmeparameter (bei Bedarf zeitlich aufgelöst) eingespeichert sind. Durch Vergleich der im Betrieb gemessenen Werte mit den gespeicherten Werten kann beispielsweise auf die Textilart zurückgeschlossen werden. Eine Vergleichsmöglichkeit besteht darin, die Differenzkurve des Wasserstands zwischen Benetzungsphase und Spülsequenz mit einer gespeicherten Kurve zu vergleichen. Bei einer weiteren Vergleichsmöglichkeit werden nur einzelne Werte verglichen, wie das Laugenvolumen nach Erreichen eines bestimmten Niveaus Nv. Es können auch andere Arten von Auswertungen oder Expertensystemen verwendet werden, z. B. inclusive Fuzzy-Logik.In an embodiment of the washing machine according to the invention, the
Gemäß der Erfindung wird die in
Wie in
Während der Waschphase PhW wird die Wäschetrommel 2 dauernd reversierend mit beispielsweise 50 Upm angetrieben, so dass die Wäsche intensiv mit der während der Benetzungsphase PhB bereits aufgeheizten Wasch-Lauge in Berührung kommt. Am Ende der Waschphase PhW kann die Wasch-Lauge optional abgepumpt werden.During the washing phase PhW, the
Die in
Die erste Spülsequenz SeqS1, während der die Wasseraufnahme der Textilien durch Bestimmung der zur Erreichung des Laugenniveaus Nv nötigen Frischwassevolumens V gemessen wird, ist der Benetzungsphase PhB ähnlich. Auf diese Weise wird analog zur Messung des Wasseraufnahmevermögens in der Benetzungsphase das Wasserrückhaltevermögen desselben Wäschepostens bei bereits benetzter Wäsche gemessen.The first rinsing sequence SeqS1, during which the water absorption of the textiles is measured by determining the fresh water volume V necessary to achieve the liquor level N v , is similar to the wetting phase PhB. In this way, similar to the measurement of the water absorption capacity in the wetting phase, the water retention capacity of the same laundry item is measured with already wetted laundry.
Am Ende der Spülsequenz SeqS1 wird die darin gemessene Wasseraufnahme mit der aus der Benetzungsphase PhB bestimmten Wasseraufnahme verglichen, und daraus das Wasserspeichervermögen bzw. die Textilart bestimmt. In den folgenden Entfeuchtungssequenzen SeqE2, SeqE3 und / oder Spülsequenzen SeqS2, SeqS3 sind die Betriebsparameter (Drehzahl, Spüldauer etc.) an das Wasserspeichervermögen bzw. die Textilart durch die Steuereinheit angepasst worden, z. B. unter Nutzung eines Expertensystems.At the end of the rinsing sequence SeqS1, the water absorption measured therein is compared with the water absorption determined from the wetting phase PhB, and from this the water storage capacity or type of textile is determined. In the following dehumidification sequences SeqE2, SeqE3 and / or purge sequences SeqS2, SeqS3, the operating parameters (speed, purging duration, etc.) have been adapted to the water storage capacity or the textile type by the control unit, z. B. using an expert system.
Nach der Spülphase PhSp wird der Trommelantrieb auf den in
Zum Schleudern von Textilen 7 mit hoher Wasseraufnahmefähigkeit ist in
Dem Hauptschleuderblock B1-H ist eine Vorentwässerungsphase BV-H vorgeschaltet, die mehrere Vorentwässerungs-Peaks (Schleuderimpulse) mit vergleichsweise geringer Drehzahl aufweist. Die Zahl und Form der Schleudersequenzen ist auf die geforderte Entfeuchtung einzustellen, insbesondere sind bei hohem Wasserrückhaltevermögen mehrere Hauptschleuderblöcke B1-H, B2-H günstig, deren Anzahl und Form abhängig von den tatsächlich erkannten Bedingungen ist.The main spinner block B1-H is preceded by a pre-dewatering phase BV-H, which has a number of pre-dewatering peaks (spin pulses) at a comparatively low speed. The number and shape of the spin sequences must be set to the required dehumidification; in particular, with high water retention capacity, a plurality of main spin blocks B1-H, B2-H are favorable, the number and shape of which depends on the conditions actually recognized.
- 11
- Laugenbehältertub
- 22
- Wäschetrommelwashing drum
- 33
- horizontale Achsehorizontal axis
- 44
- Mitnehmertakeaway
- 66
- Laugelye
- 77
- WäscheLaundry
- 88th
- Magnetventilmagnetic valve
- 99
- Magnetventilmagnetic valve
- 1010
- Leitungmanagement
- 1111
- WaschmitteleinspüleinrichtungWashing agent
- 1212
- Steuereinrichtungcontrol device
- 1313
- Heizeinrichtungheater
- 1414
- Elektromotorelectric motor
- 1515
- Temperatursensortemperature sensor
- 1616
- Drehrichtung der WäschetrommelDirection of rotation of the laundry drum
- 1717
- Abflussleitungdrain line
- 1818
- LaugenpumpeDrain pump
- 111111
- Waschmittelkammerdetergent chamber
- 112112
- Kammerchamber
- 121121
- Auswerteeinrichtungevaluation
- B1-HB1-H
- HauptschleuderblockMain spin block
- B2-HB2-H
- HauptschleuderblockMain spin block
- B1-NB1-N
- HauptschleuderblockMain spin block
- B2-NB2-N
- HauptschleuderblockMain spin block
- BV-HBV-H
- VorentwässerungsphaseVorentwässerungsphase
- PhBPh
- BenetzungsphaseWetting phase
- PhSch-HPhSch-H
- Schleuderphasespinning phase
- PhSch-NPhSch-N
- Schleuderphasespinning phase
- PhSpPhSp
- Spülphaserinsing phase
- PhWPhW
- Waschphasewashing phase
- nn
- Drehzahlrotation speed
- NvNv
- Laugenniveaulye level
- SeqE1SeqE1
- EntfeuchtungssequenzEntfeuchtungssequenz
- SeqE2SeqE2
- EntfeuchtungssequenzEntfeuchtungssequenz
- SeqE3SeqE3
- EntfeuchtungssequenzEntfeuchtungssequenz
- SeqS1SeqS1
- Spülsequenzrinsing sequence
- SeqS2SeqS2
- Spülsequenzrinsing sequence
- SeqS3SeqS3
- Spülsequenzrinsing sequence
- SHLSHL
- Schleuderplateauspin plateau
- VV
- Laugenvolumenvolume of liquor
Claims (17)
- Method of determining the water storage capacity of textiles in a washing machine, which is equipped with devices (12, 121, 14) for driving a laundry drum (2), which is rotatably mounted in a solution container (1), as well as for controlling a wetting phase (PhB) and a rinsing phase (PhSp) of a washing process, wherein a water take-up of the textiles in the wetting phase (PhB) is measured,
characterised in thata) the rinsing phase (PhSp) has at least one rinsing sequence (SeqS1, SeqS2, SeqS3) following a moisture removal sequence (SeqE1, SeqE2, SeqE3),b) a water take-up of the textiles is measured in at least one of the rinsing sequences (SeqE1, SeqE2, SeqE3),c) the measurement of the water take-up of the textiles in the wetting phase (PhB) and the measurement from step (b) are compared with one another andd) the water storage capacity of the textiles is determined on the basis of the comparison. - Method according to claim 1, characterised in that the rinsing sequence (SeqE1) used for measuring the water take-up from step (b) is similar to the wetting phase (PhB).
- Method according to claim 1 or 2, characterised in that the rinsing sequence (SeqS1, SeqS2, SeqS3) used in step (b) for measuring the water take-up is the first rinsing sequence (SeqS1).
- Method according to claim 1 or 2, characterised in that the water take-up of the textiles is measured by determining the level (Nv) after feed of a specific volume of solution (V).
- Method according to any one of the preceding claims, characterised in that the water take-up of the textiles is measured by determining the solution volume (V) necessary for reaching a specific level (Nv).
- Method of rinsing textiles, characterised in thate) a method of determining the water storage capacity according to any one of claims 1 to 5 is performed andf) at least one rinsing sequence (SeqS2, SeqS3) following the rinsing sequence (SeqS1) used for measuring the water take-up is set in dependence on the determined water storage capacity.
- Method according to claim 6, characterised in that the following rinsing sequences (SeqS2, SeqS3) are so set that in the case of textiles with high water retention capability the scale time is increased by comparison with textiles with low water retention capability.
- Method according to one of claims 6 and 7, characterised in that at least one moisture removal sequence (SeqE2, SeqE3) following the rinsing sequence (SeqS1) used for measuring the water take-up is set in dependence on the determined water storage capacity.
- Method according to claim 8, characterised in that the moisture removal sequence (SeqE2, SeqE3) is so set that in the case of textiles with a high water retention capability the scale time and/or the rotational speed of the laundry drum is or are increased by comparison with textiles with low water retention capability.
- Method according to any one of claims 1 to 5, characterised in that the determination of the water storage capacity of the textiles follows a spinning phase for spinning the textiles, wherein the spinning phase (PhSch-N, Ph-Sch-H) is set in dependence on the water storage capacity.
- Method according to claim 10, characterised in that the spinning phase (PhSch-N, Ph-Sch-H) is so set that in the case of textiles with a high water retention capability the spinning scale time is increased by comparison with textiles with a low water retention capability.
- Method according to one of claims 10 and 11, characterised in that the spinning phase (PhSch-N, Ph-Sch-H) is so set that in the case of textiles with a high water retention capability the final spinning rotational speed is increased by comparison with textiles with a low water retention capability.
- Method according to any one of claims 10 to 12, characterised in that at the start of the spinning phase (PhSch-N, Ph-Sch-H) at least one preliminary water removal (BV-H) is carried out.
- Method according to any one of claims 10 to 13, characterised in that several main spinning blocks (B1-N, B2-N, B1-H, B2-H) are provided in the spinning phase (PhSch-N, Ph-Sch-H).
- Washing machine comprising a control device (12) which is equipped for determining the water storage capacity of textiles as well as for controlling a wetting phase (PhB) and a rinsing phase (PhSp) of a washing process, as well as comprising a solution container (1), a laundry drum (2), which is rotatably mounted in the solution container (1), for receiving the textiles, and devices (121, 14) for driving the laundry drum (2), wherein a water take-up of the textiles in the wetting phase (PhB) is measured, characterised in that the rinsing phase (PhSp) comprises at least one rinsing sequence (SeqS1, SeqS2, SeqS3) following a moisture removal sequence (SeqE1, SeqE2, SeqE3) and that the control device (12) is equipped for determining the water storage capacity in such a manner thatI) a water take-up of the textiles is measured in at least one of the rinsing sequences (SeqE1, SeqE2, SeqE3),II) the measurement of the water take-up of the textiles in the wetting phase (PhB) and the measurement from step (I) are compared with one another andIII) the water storage capacity of the textiles is determined on the basis of the comparison.
- Washing machine according to claim 15, characterised in that it is equipped with an electronic processing and control unit (121), in which an expert system is implemented.
- Washing machine according to one of claims 15 and 16, characterised in that the control unit (12) is equipped in such a manner that in the course of determination of the water storage capacity of the textiles a spinning phase for spinning the textiles can be performed, wherein the spinning phase (PhSch-N, Ph-Sch-H) is set in dependence on the water storage capacity.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102006029950A DE102006029950A1 (en) | 2006-06-29 | 2006-06-29 | Determination of the water storage capacity of textiles in a washing machine |
PCT/EP2007/055737 WO2008000614A1 (en) | 2006-06-29 | 2007-06-12 | Determination of the water storage capacity of textiles in a washing machine, and corresponding washing machine |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2049723A1 EP2049723A1 (en) | 2009-04-22 |
EP2049723B1 true EP2049723B1 (en) | 2012-01-11 |
Family
ID=38421193
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP07730068A Active EP2049723B1 (en) | 2006-06-29 | 2007-06-12 | Determination of the water storage capacity of textiles in a washing machine, and corresponding washing machine |
Country Status (6)
Country | Link |
---|---|
US (1) | US8220292B2 (en) |
EP (1) | EP2049723B1 (en) |
CN (1) | CN101479420B (en) |
AT (1) | ATE541077T1 (en) |
DE (1) | DE102006029950A1 (en) |
WO (1) | WO2008000614A1 (en) |
Families Citing this family (13)
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WO2011080231A2 (en) * | 2009-12-31 | 2011-07-07 | Arcelik Anonim Sirketi | A washing machine wherein the type and amount of laundry can be detected |
DE102010042172A1 (en) | 2010-10-07 | 2012-04-12 | BSH Bosch und Siemens Hausgeräte GmbH | Domestic appliance with a controller for an electrical energy supply network with associated data network and method for operating a control of a domestic appliance on this power supply network |
US9243987B2 (en) | 2013-05-01 | 2016-01-26 | Whirlpool Corporation | Method of determining fabric type of a laundry load in a laundry treating appliance |
DE102014207742B4 (en) * | 2014-04-24 | 2021-02-11 | BSH Hausgeräte GmbH | Process for the hybrid treatment and rinsing of laundry items as well as a suitable washing machine |
DE102015201831A1 (en) * | 2015-02-03 | 2016-08-04 | BSH Hausgeräte GmbH | Method for determining laundry properties and suitable condensation dryer |
CN106319836A (en) * | 2015-06-24 | 2017-01-11 | 青岛海尔洗衣机有限公司 | Dehydration control method for washing machine |
US10570543B2 (en) * | 2016-10-06 | 2020-02-25 | Emz-Hanauer Gmbh & Co. Kgaa | Washing machine and method of controlling the washing machine |
CA3110505A1 (en) | 2018-08-27 | 2020-03-05 | Ecolab Usa Inc. | System and technique for extracting particulate-containing liquid samples without filtration |
DE102018217545A1 (en) | 2018-10-12 | 2020-04-16 | BSH Hausgeräte GmbH | Procedure and household appliance |
DE102018217547A1 (en) | 2018-10-12 | 2020-04-16 | BSH Hausgeräte GmbH | Home appliance |
DE102018217549A1 (en) | 2018-10-12 | 2020-04-16 | BSH Hausgeräte GmbH | Home appliance |
DE102018217551A1 (en) | 2018-10-12 | 2020-04-16 | BSH Hausgeräte GmbH | Household appliance and method of manufacturing a household appliance |
DE102018217537A1 (en) | 2018-10-12 | 2020-04-16 | BSH Hausgeräte GmbH | Household appliance, method of manufacturing a household appliance and method of dismantling a household appliance |
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Publication number | Priority date | Publication date | Assignee | Title |
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IT1246481B (en) * | 1990-10-29 | 1994-11-19 | Eurodomestici Ind Riunite | METHOD AND DEVICE FOR DETERMINING THE TYPE OF FABRIC CONSTITUTING A LOAD OR LINEN TO BE WASHED IN A WASHING MACHINE OR SIMILAR MACHINE |
DE4138636C2 (en) * | 1991-11-25 | 2003-04-10 | Aeg Hausgeraete Gmbh | Method for determining the water requirement in program-controlled washing machines |
DE4304031A1 (en) * | 1993-02-11 | 1994-08-18 | Licentia Gmbh | Drum washing machine with a program sequence control device |
CN1125275A (en) * | 1993-08-27 | 1996-06-26 | 朱亮 | Fuzzy control method for washer and its controller |
IT1267603B1 (en) * | 1994-12-13 | 1997-02-07 | Zanussi Elettrodomestici | WASHING MACHINES WITH PERFECTED DEVICES FOR DETERMINING THE TYPE OF FABRIC |
DE19538291C2 (en) * | 1995-10-14 | 2001-07-12 | Aeg Hausgeraete Gmbh | Procedure for determining the water absorption level of laundry |
IT1284371B1 (en) * | 1996-02-05 | 1998-05-18 | Merloni Elettrodomestici Spa | METHOD FOR DETERMINING THE QUANTITY AND / OR TYPE OF FABRIC INTRODUCED IN A WASHING MACHINE. |
KR100403026B1 (en) * | 2001-07-31 | 2003-10-23 | 삼성전자주식회사 | Control method of washing machine considering characteristic of absorption in clothes |
KR20030021348A (en) * | 2001-09-05 | 2003-03-15 | 주식회사 엘지이아이 | method for controlling washing in drum-type washing machine |
DE10234473A1 (en) * | 2002-07-29 | 2004-02-12 | BSH Bosch und Siemens Hausgeräte GmbH | A method for acceleration of the absorption of water in the dry wash load of an automatic washing machine, using a controlled sequence of alternate direction tumbles at different speeds |
-
2006
- 2006-06-29 DE DE102006029950A patent/DE102006029950A1/en not_active Withdrawn
-
2007
- 2007-06-12 US US12/308,735 patent/US8220292B2/en active Active
- 2007-06-12 CN CN2007800244644A patent/CN101479420B/en active Active
- 2007-06-12 EP EP07730068A patent/EP2049723B1/en active Active
- 2007-06-12 WO PCT/EP2007/055737 patent/WO2008000614A1/en active Application Filing
- 2007-06-12 AT AT07730068T patent/ATE541077T1/en active
Also Published As
Publication number | Publication date |
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US8220292B2 (en) | 2012-07-17 |
CN101479420A (en) | 2009-07-08 |
CN101479420B (en) | 2011-04-13 |
US20090307850A1 (en) | 2009-12-17 |
ATE541077T1 (en) | 2012-01-15 |
EP2049723A1 (en) | 2009-04-22 |
DE102006029950A1 (en) | 2008-01-03 |
WO2008000614A1 (en) | 2008-01-03 |
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