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WO2006126811A2 - Generateur de vapeur presentant un capteur de pression pour un lave-linge a tambour et methode de controle de ce generateur - Google Patents

Generateur de vapeur presentant un capteur de pression pour un lave-linge a tambour et methode de controle de ce generateur Download PDF

Info

Publication number
WO2006126811A2
WO2006126811A2 PCT/KR2006/001902 KR2006001902W WO2006126811A2 WO 2006126811 A2 WO2006126811 A2 WO 2006126811A2 KR 2006001902 W KR2006001902 W KR 2006001902W WO 2006126811 A2 WO2006126811 A2 WO 2006126811A2
Authority
WO
WIPO (PCT)
Prior art keywords
steam generator
steam
water
pressure
housing
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.)
Ceased
Application number
PCT/KR2006/001902
Other languages
English (en)
Other versions
WO2006126811A3 (fr
Inventor
Ki Chul Cho
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LG Electronics Inc
Original Assignee
LG Electronics Inc
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 LG Electronics Inc filed Critical LG Electronics Inc
Priority to US11/661,591 priority Critical patent/US20080190149A1/en
Priority to DE112006000057T priority patent/DE112006000057T5/de
Publication of WO2006126811A2 publication Critical patent/WO2006126811A2/fr
Publication of WO2006126811A3 publication Critical patent/WO2006126811A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/40—Steam generating arrangements
    • 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
    • D06F33/00—Control of operations performed in washing machines or washer-dryers 
    • D06F33/30—Control of washing machines characterised by the purpose or target of the control 
    • D06F33/47—Responding to irregular working conditions, e.g. malfunctioning of pumps 
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B1/00—Methods of steam generation characterised by form of heating method
    • F22B1/28—Methods of steam generation characterised by form of heating method in boilers heated electrically
    • F22B1/284—Methods of steam generation characterised by form of heating method in boilers heated electrically with water in reservoirs
    • 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
    • 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
    • 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
    • D06F2105/28—Electric heating

Definitions

  • the present invention relates to a drum washing machine, and more particularly, to a' steam generator of a drum washing machine which includes a pressure sensor for controlling an internal pressure of the steam generator, so as to prevent the steam generator from being damaged due to an excessive steam-pressure or water-pressure.
  • FIG. 1 is a perspective view of schematically illustrating a related art drum type washing machine.
  • a related art drum type washing machine includes a cabinet 10 defining the exterior thereof; a cylindrical tub 20 vertically suspended within the cabinet 10 for holding washing water; a drum 30 rotatably mounted within the tub 20; and a driving motor (not shown) axially connected with the drum 30 so as to drive the . drum 30.
  • a steam generator 50 is provided in the related art drum washing machine of FIG. 1, so as to supply the steam to the inside of the drum 30.
  • a laundry introduction opening 13 for loading and unloading the laundry is provided in communication with the inside of the drum 30.
  • a door 11 is provided for opening and shutting of the laundry introduction opening 13. That is, the door 11 turns on its hinge toward the front side of the dram washing machine.
  • a water supplying valve 15 and a water supplying hose 25 are provided at one side of the drum washing machine, and are connected with an external water pipe (not shown) so as to supply the washing water to the tub 20.
  • the steam generator 50 is connected with the water supplying hose 25. As the washing water is supplied to the steam generator 50, the steam generator 50 heats the washing water, and then supplies the heated washing water to the drum 30.
  • a steam supplying pipe 53 is provided at one side of the steam generator 50, whereby the steam supplying pipe 53 serves as a passage for guiding and injecting the steam generated in the steam generator 50 to the inside of the drum 30.
  • one end of the steam supplying pipe 53 is provided with a nozzle for the smooth injection of the steam to the inside of the drum 30.
  • the end of the steam supplying pipe 53 for discharging the steam is exposed to the inside of the drum 30.
  • the steam generator 50 includes a lower housing 81 for defining the exterior thereof as well as the space to hold the washing water; an upper housing 82 connected to an upper surface of the lower housing 81 ; and a heater 55 for heating the washing water held within the steam generator 50.
  • an outlet 82b is provided at the other side of the upper housing 82, wherein the outlet 82b is connected with the steam supplying pipe 53 for supplying the generated steam to the drum 30.
  • a water level sensor 60 and a temperature sensor 57 are provided at one side of the upper housing 82, wherein the water level sensor 60 senses a water level held in the upper housing 82, and the temperature sensor 57 senses the temperature of water as well as steam heated by the heater 55.
  • the water level sensor 60 senses the water level held within the steam generator 50 for maintaining the appropriate amount of the water in the steam generator 50.
  • the water supplying valve 15 is opened for filling up the water. Meanwhile, if the water level held within the steam generator 50 is higher than the preset value, the water supplying valve 15 is closed to stop supplying the water, and the heater 55 is operated to generate the steam.
  • the receptacle housing 61 defines the exterior of the water level sensor 60, and also fixes the water level sensor 60 to the steam generator 50.
  • Each of the electrodes 62, 63, and 64 is provided in a lower portion of the receptacle housing 61 for sensing the water level within the steam generator 50.
  • non-explained reference numbers 52a and 52b correspond to a portion for connecting the water supplying hose 25 with the steam supplying pipe 53.
  • An object of the present invention is to provide a steam generator of a drum washing machine which includes a pressure sensor for controlling an internal pressure of the steam generator, so as to prevent the pressure sensor from being damaged due to an excessive steam-pressure or water-pressure.
  • a steam generator of a drum washing machine comprises a housing which holds water therein; a heater which generates steam by heating the water held in the housing; and a pressure sensor which senses an internal pressure of the housing.
  • the pressure sensor is electrically connected with the heater.
  • the pressure sensor is provided in the steam-filling part.
  • a method for sensing a pressure inside a steam generator of a drum washing machine comprises previously setting a predetermined value of pressure; supplying water to the inside of the steam generator; heating the water supplied to the steam generator; sensing a pressure inside the steam generator on heating the water supplied; and comparing the sensed pressure with the predetermined value set previously.
  • the method includes stopping an operation of the heater if the sensed pressure is higher than the predetermined value set previously.
  • the steam generator of the drum washing machine includes the pressure sensor that controls the internal pressure. If the heater keeps heating the water in state of that the supplying pipe of the steam generator is clogged by the foreign substances, the internal pressure is increased.
  • the pressure sensor senses the internal pressure of the steam generator, and controls the operation, of the heater by the micom, to.thereby prevent the internal pressure of the steam generator from being excessive.
  • FIG. 1 is a perspective view of schematically illustrating a structure of v a drum washing machine according to the related art.
  • FIG. 2 is a perspective view of illustrating a steam generator of a drum washing machine according to the related art.
  • FIG. 3 is a perspective view of illustrating an inner structure of a steam generator shown in FIG. 2.
  • FIG. 4 is a perspective view of illustrating the exterior of a steam generator according to the preferred embodiment of the present invention.
  • FIG. 5 is a perspective view of illustrating an inner structure of a steam generator according to the preferred embodiment of the present invention.
  • FIG. 6 is a block diagram of illustrating a connection of components provided inside a steam generator according to the preferred embodiment of the present invention.
  • FIG. 7 is a block diagram of illustrating a method for controlling a heater of a stem generator according to the preferred embodiment of the present invention.
  • FIG. 4 is a perspective view of illustrating the exterior of a steam generator according to the preferred embodiment of the present invention.
  • a steam generator 50 of a drum washing machine includes a housing 80 comprised of lower and upper housings 81 and 82 connected to each other.
  • the housing 80 is provided with a water level sensor 60; a heater 55; and a pressure sensor 100.
  • the water level sensor 60 senses a level of water, held in the steam generator 50.
  • the heater 55 heats the water supplied to the housing 80.
  • the pressure sensor 100 senses a pressure inside the housing 80.
  • a steam-filling part .88 of a protruding structure is provided at an upper portion of the housing 80.
  • the steam-filling part 88 is filled with not water but steam since the water level
  • the pressure sensor 100 senses the water level. Accordingly, it is preferable to provide the pressure sensor 100 on the steam-filling part 88.
  • a temperature sensor 57 is provided on an upper surface of the housing 80, so as to sense a temperature of the water supplied to the inside of the steam generator 50.
  • the pressure sensor 100 is provided in communication with the inside of the housing 80, so as to sense the inside pressure of the housing 80.
  • the housing 80 includes a water supplying pipe 52a connected with a water supplying hose (25 of FIG. 1), and a supplying pipe 52b connected with a steam supplying pipe (53 of FIG. 1).
  • the pressure sensor 100 is electrically connected with the heater 55.
  • the drum washing machine of the present invention includes a micom 200 for controlling the heater 55, wherein the micon 200 is electrically connected with the pressure sensor 100 and the heater 55.
  • a method for controlling the steam generator according to the preferred embodiment of the present invention will be explained as follows. [51] Referring to FIG. 5, as the washing water is supplied to the inside of the steam generator 50 by the water supplying hose (25 of FIG. 1), the heater 55 is operated to heat the washing water. As a result, the steam is generated, and the generated steam is guided to the inside of the drum 30 by the steam supplying pipe (53 of FIG. 1). Then, the washing stroke is performed.
  • the water level sensor 60 senses the water level.
  • the pressure sensor 100 is provided inside the steam generator 50, so as to sense the pressure inside the steam generator 50.
  • the pressure sensor 100 is electrically connected with the micom 200, the pressure senior 100 sends electric signals to the micom 200. That is, if the pressure sensed by the pressure sensor 100 is higher than a preset value, the micom 200 stops the operation of the heater 55 by controlling the heater 55.
  • the steam generator of the drum washing machine includes the pressure sensor that controls the internal pressure. If the heater keeps heating the water in state of that the supplying pipe of the steam generator is clogged by the foreign substances, the internal pressure is increased.
  • the pressure sensor senses the internal pressure of the steam generator, and controls the operation of the heater by the micom, to thereby prevent the internal pressure of the steam generator from being excessive.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
  • Control Of Washing Machine And Dryer (AREA)
  • Main Body Construction Of Washing Machines And Laundry Dryers (AREA)

Abstract

L'invention concerne un générateur de vapeur de lave-linge à tambour. Ce générateur comprend un capteur de pression pour contrôler une pression interne du générateur de vapeur, de sorte à éviter une pression de vapeur excessive ou une pression d'eau excessive à l'intérieur du générateur de vapeur. Ce générateur de vapeur comprend un compartiment qui renferme de l'eau; un générateur de chaleur qui génère de la vapeur en chauffant l'eau contenue dans le compartiment susmentionné; et un capteur de pression qui détecte une pression interne dans le compartiment.
PCT/KR2006/001902 2005-05-23 2006-05-21 Generateur de vapeur presentant un capteur de pression pour un lave-linge a tambour et methode de controle de ce generateur Ceased WO2006126811A2 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US11/661,591 US20080190149A1 (en) 2005-05-23 2006-05-21 Steam Generator Having Press-Sensor for Drum Washing Machine and Control Method as the Same
DE112006000057T DE112006000057T5 (de) 2005-05-23 2006-05-21 Dampfgenerator mit einem Drucksensor für eine Trommelwaschmaschine sowie zugehöriges Steuerungsverfahren

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2005-0043000 2005-05-23
KR1020050043000A KR101154962B1 (ko) 2005-05-23 2005-05-23 압력센서를 구비한 드럼 세탁기용 증기발생장치 및 그 제어방법

Publications (2)

Publication Number Publication Date
WO2006126811A2 true WO2006126811A2 (fr) 2006-11-30
WO2006126811A3 WO2006126811A3 (fr) 2007-03-08

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2006/001902 Ceased WO2006126811A2 (fr) 2005-05-23 2006-05-21 Generateur de vapeur presentant un capteur de pression pour un lave-linge a tambour et methode de controle de ce generateur

Country Status (4)

Country Link
US (1) US20080190149A1 (fr)
KR (1) KR101154962B1 (fr)
DE (1) DE112006000057T5 (fr)
WO (1) WO2006126811A2 (fr)

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007028212A1 (de) * 2007-06-20 2008-12-24 BSH Bosch und Siemens Hausgeräte GmbH Verfahren zur Behandlung von Wäschestücken sowie hierzu geeignete Waschmaschine
FR2920043A1 (fr) * 2007-08-03 2009-02-20 Lg Electronics Inc Generateur de vapeur et son procede de commande.
US7591859B2 (en) 2006-08-15 2009-09-22 Whirlpool Corporation Water supply control for a steam generator of a fabric treatment appliance using a weight sensor
US7627920B2 (en) 2006-06-09 2009-12-08 Whirlpool Corporation Method of operating a washing machine using steam
US7665332B2 (en) 2006-08-15 2010-02-23 Whirlpool Corporation Steam fabric treatment appliance with exhaust
US7681418B2 (en) 2006-08-15 2010-03-23 Whirlpool Corporation Water supply control for a steam generator of a fabric treatment appliance using a temperature sensor
US7690062B2 (en) 2007-08-31 2010-04-06 Whirlpool Corporation Method for cleaning a steam generator
US7707859B2 (en) 2006-08-15 2010-05-04 Whirlpool Corporation Water supply control for a steam generator of a fabric treatment appliance
US7730568B2 (en) 2006-06-09 2010-06-08 Whirlpool Corporation Removal of scale and sludge in a steam generator of a fabric treatment appliance
US7753009B2 (en) 2006-10-19 2010-07-13 Whirlpool Corporation Washer with bio prevention cycle
US7765628B2 (en) 2006-06-09 2010-08-03 Whirlpool Corporation Steam washing machine operation method having a dual speed spin pre-wash
WO2009093823A3 (fr) * 2008-01-21 2010-10-07 Lg Electronics Inc. Procédé de commande d'un lave-linge pour régler une pression de vapeur et lave-linge mettant en oeuvre celui-ci
US7841219B2 (en) 2006-08-15 2010-11-30 Whirlpool Corporation Fabric treating appliance utilizing steam
US7861343B2 (en) 2007-08-31 2011-01-04 Whirlpool Corporation Method for operating a steam generator in a fabric treatment appliance
US7886392B2 (en) 2006-08-15 2011-02-15 Whirlpool Corporation Method of sanitizing a fabric load with steam in a fabric treatment appliance
US7905119B2 (en) 2007-08-31 2011-03-15 Whirlpool Corporation Fabric treatment appliance with steam generator having a variable thermal output
US7918109B2 (en) 2007-08-31 2011-04-05 Whirlpool Corporation Fabric Treatment appliance with steam generator having a variable thermal output
US7941885B2 (en) 2006-06-09 2011-05-17 Whirlpool Corporation Steam washing machine operation method having dry spin pre-wash
US7966683B2 (en) 2007-08-31 2011-06-28 Whirlpool Corporation Method for operating a steam generator in a fabric treatment appliance
US8037565B2 (en) 2007-08-31 2011-10-18 Whirlpool Corporation Method for detecting abnormality in a fabric treatment appliance having a steam generator
US8393183B2 (en) 2007-05-07 2013-03-12 Whirlpool Corporation Fabric treatment appliance control panel and associated steam operations
US8555675B2 (en) 2007-08-31 2013-10-15 Whirlpool Corporation Fabric treatment appliance with steam backflow device
US8555676B2 (en) 2007-08-31 2013-10-15 Whirlpool Corporation Fabric treatment appliance with steam backflow device

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN119859900B (zh) * 2023-10-19 2025-11-21 海信冰箱有限公司 洗衣机蒸汽发生器的状态检测方法及洗衣机

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2242632C3 (de) * 1972-08-30 1981-05-21 BÖWE Maschinenfabrik GmbH, 8900 Augsburg Verfahren und Vorrichtung zum Trocknen von mit flüchtigen Lösemitteln behandelten Textilien o.dgl.
KR100510680B1 (ko) * 2003-03-31 2005-08-31 엘지전자 주식회사 증기분사식 드럼세탁기
KR100517612B1 (ko) * 2003-03-31 2005-09-28 엘지전자 주식회사 증기분사식 드럼세탁기
KR100504501B1 (ko) * 2003-04-14 2005-08-02 엘지전자 주식회사 증기분사식 드럼세탁기의 세탁방법
KR101003359B1 (ko) * 2003-12-23 2010-12-28 삼성전자주식회사 드럼세탁기 및 그 세탁방법
KR20050044884A (ko) * 2005-04-27 2005-05-13 엘지전자 주식회사 증기분사식 드럼세탁기

Cited By (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7730568B2 (en) 2006-06-09 2010-06-08 Whirlpool Corporation Removal of scale and sludge in a steam generator of a fabric treatment appliance
US7941885B2 (en) 2006-06-09 2011-05-17 Whirlpool Corporation Steam washing machine operation method having dry spin pre-wash
US7765628B2 (en) 2006-06-09 2010-08-03 Whirlpool Corporation Steam washing machine operation method having a dual speed spin pre-wash
US7627920B2 (en) 2006-06-09 2009-12-08 Whirlpool Corporation Method of operating a washing machine using steam
US7886392B2 (en) 2006-08-15 2011-02-15 Whirlpool Corporation Method of sanitizing a fabric load with steam in a fabric treatment appliance
US7591859B2 (en) 2006-08-15 2009-09-22 Whirlpool Corporation Water supply control for a steam generator of a fabric treatment appliance using a weight sensor
US7913339B2 (en) 2006-08-15 2011-03-29 Whirlpool Corporation Water supply control for a steam generator of a fabric treatment appliance using a temperature sensor
US7707859B2 (en) 2006-08-15 2010-05-04 Whirlpool Corporation Water supply control for a steam generator of a fabric treatment appliance
EP1889966A3 (fr) * 2006-08-15 2010-06-02 Whirlpool Corporation Contrôle de l'alimentation en eau d'un générateur de vapeur d'un appareil de traitement de tissus utilisant un capteur de température
US7665332B2 (en) 2006-08-15 2010-02-23 Whirlpool Corporation Steam fabric treatment appliance with exhaust
US7904981B2 (en) 2006-08-15 2011-03-15 Whirlpool Corporation Water supply control for a steam generator of a fabric treatment appliance
US7681418B2 (en) 2006-08-15 2010-03-23 Whirlpool Corporation Water supply control for a steam generator of a fabric treatment appliance using a temperature sensor
US7841219B2 (en) 2006-08-15 2010-11-30 Whirlpool Corporation Fabric treating appliance utilizing steam
US7753009B2 (en) 2006-10-19 2010-07-13 Whirlpool Corporation Washer with bio prevention cycle
US10844533B2 (en) 2007-05-07 2020-11-24 Whirlpool Corporation Method for controlling a household washing machine
US11993886B2 (en) 2007-05-07 2024-05-28 Whirlpool Corporation Method for controlling a household washing machine
US8393183B2 (en) 2007-05-07 2013-03-12 Whirlpool Corporation Fabric treatment appliance control panel and associated steam operations
DE102007028212B4 (de) 2007-06-20 2022-03-24 BSH Hausgeräte GmbH Verfahren zur Behandlung von Wäschestücken sowie hierzu geeignete Waschmaschine
DE102007028212A1 (de) * 2007-06-20 2008-12-24 BSH Bosch und Siemens Hausgeräte GmbH Verfahren zur Behandlung von Wäschestücken sowie hierzu geeignete Waschmaschine
FR2920043A1 (fr) * 2007-08-03 2009-02-20 Lg Electronics Inc Generateur de vapeur et son procede de commande.
US7861343B2 (en) 2007-08-31 2011-01-04 Whirlpool Corporation Method for operating a steam generator in a fabric treatment appliance
US7966683B2 (en) 2007-08-31 2011-06-28 Whirlpool Corporation Method for operating a steam generator in a fabric treatment appliance
US8037565B2 (en) 2007-08-31 2011-10-18 Whirlpool Corporation Method for detecting abnormality in a fabric treatment appliance having a steam generator
US7918109B2 (en) 2007-08-31 2011-04-05 Whirlpool Corporation Fabric Treatment appliance with steam generator having a variable thermal output
US8555675B2 (en) 2007-08-31 2013-10-15 Whirlpool Corporation Fabric treatment appliance with steam backflow device
US8555676B2 (en) 2007-08-31 2013-10-15 Whirlpool Corporation Fabric treatment appliance with steam backflow device
US7905119B2 (en) 2007-08-31 2011-03-15 Whirlpool Corporation Fabric treatment appliance with steam generator having a variable thermal output
US7690062B2 (en) 2007-08-31 2010-04-06 Whirlpool Corporation Method for cleaning a steam generator
WO2009093823A3 (fr) * 2008-01-21 2010-10-07 Lg Electronics Inc. Procédé de commande d'un lave-linge pour régler une pression de vapeur et lave-linge mettant en oeuvre celui-ci

Also Published As

Publication number Publication date
DE112006000057T5 (de) 2007-07-05
US20080190149A1 (en) 2008-08-14
KR20060120819A (ko) 2006-11-28
KR101154962B1 (ko) 2012-06-18
WO2006126811A3 (fr) 2007-03-08

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