EP1999308A1 - A washing machine with ozone feed directly into the water supply pipe - Google Patents

A washing machine with ozone feed directly into the water supply pipe

Info

Publication number
EP1999308A1
EP1999308A1 EP07727422A EP07727422A EP1999308A1 EP 1999308 A1 EP1999308 A1 EP 1999308A1 EP 07727422 A EP07727422 A EP 07727422A EP 07727422 A EP07727422 A EP 07727422A EP 1999308 A1 EP1999308 A1 EP 1999308A1
Authority
EP
European Patent Office
Prior art keywords
water
ozone
pipe
washing
washing machine
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP07727422A
Other languages
German (de)
French (fr)
Other versions
EP1999308B1 (en
Inventor
Osman G. Ersoy
Mehmet Kaya
Emine Birci
Aylin Ersoy Akova
Zehra Ulger
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.)
Arcelik AS
Original Assignee
Arcelik AS
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 AS filed Critical Arcelik AS
Priority to PL07727422T priority Critical patent/PL1999308T3/en
Publication of EP1999308A1 publication Critical patent/EP1999308A1/en
Application granted granted Critical
Publication of EP1999308B1 publication Critical patent/EP1999308B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/42—Details
    • A47L15/4236—Arrangements to sterilize or disinfect dishes or washing liquids
    • A47L15/424—Arrangements to sterilize or disinfect dishes or washing liquids by using ozone
    • 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
    • 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
    • D06F35/00—Washing machines, apparatus, or methods not otherwise provided for
    • D06F35/001—Washing machines, apparatus, or methods not otherwise provided for using ozone
    • 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 
    • D06F39/08—Liquid supply or discharge arrangements
    • D06F39/088—Liquid supply arrangements

Definitions

  • the present invention relates to a washing machine wherein ozonated washing is implemented.
  • the basic parameters effective in washing are the mechanical movement, the amount of detergent, the temperature and duration. Decreasing any one of these parameters results in the reduction of washing efficiency or the effect of one of the other parameters has to be increased in order to counteract this effect. For example, when the temperature goes down, the washing duration has to be increased.
  • the critical of these parameters are the amount of detergent and the temperature. When the amount of detergent used is reduced, the amount of chemical waste product is decreased; it is then possible to shorten the washing duration with a lesser amount of water usage. However, reducing the amount of detergent results in profoundly lowering the washing efficiency and it is not possible to regain the same effect by changing the other parameters. Therefore alternative washing methods have been developed in order to increase the washing efficiency wherein the amount of detergent usage is reduced.
  • One of these alternative washing methods is washing with ozone.
  • the ozone also has a significant bleaching and soil removal effect besides its disinfection effect.
  • the laundry washed is provided to be whiter and disinfected by means of the ozone gas mixed in with the water received from the main supply in the washing machines.
  • ozone has a soil removal effect, the use of detergents and other washing agents are reduced and savings in energy consumption is realized since the washing is carried out in lower temperatures. With the reduction in detergent usage, washing process can be realized using a lesser amount of water.
  • German Patent Application no. DE3232057 explanation is given for the disinfection and/or sterilization effect of ozone being used during the washing process in washing machines and dishwashers. Furthermore, ozone gas is also used during the rinsing process in this application.
  • ORP oxidation reduction potential
  • the objective of the present invention is to design a washing machine wherein ozone washing is carried out, enhancing the washing efficiency by increasing the water solubility of ozone.
  • ozone gas is given in the reverse direction of the water flow delivered from the main supply in order to increase the solubility of ozone gas in the water.
  • the washing machine comprises a water pipe that allows water to be taken into the tub and an ozone pipe having a discharge end extending into the water pipe such that it is in the reverse direction of the water flow in the water pipe and an entrance end connected to the ozone generator.
  • the ozone pipe providing transmission of the ozone gas is connected to the water pipe such that there is preferably an angle greater than 90°' there between. As a result of this angle between the ozone pipe and the water pipe, the ozone gas impacts reciprocally with the water flow and thus the water solubility speed of the ozone gas is increased.
  • the water solubility and the ORP value of the ozone gas is increased. Consequently, the ozone gas can be used in the washing process effectively and in a short time.
  • FIG. 1 - is the schematic view of a washing machine.
  • Figure 2 - is the schematic view of an embodiment of the present invention.
  • Figure 3 - is the schematic view of another embodiment of the present invention.
  • the washing machine (1) comprises a tub (2) wherein washing is carried out, an ozone generator (4) providing to produce the ozone gas, a water pipe (5) with one end connected to the main supply and the other end extending into the tub (2), providing to deliver the water received from the main supply to the tub (2) and an ozone pipe (6) with one end connected to the ozone generator (4), the other end extending into the water pipe (5), providing to deliver the ozone gas received from the ozone generator (4) into the water pipe (5) almost in the reverse direction of the water flowing in the water pipe (5) such that it is caused to impact and dissolve with the water flowing therein (Figure 1 and Figure 2).
  • the ozone pipe (6) providing to transmit the ozone gas received from the ozone generator (4) is connected to the water pipe (5) such that there is an angle greater than 90° there between - preferably closer to 180°. As a result of this angle between the ozone pipe (6) and the water pipe (5), the ozone gas is provided to impact with the water flow and increase the water solubility thereof.
  • the water solubility and effectiveness of the ozone gas is increased by delivering the ozone gas received from the ozone generator (4) such that it is sprayed into the water pipe (5) in the reverse direction of the water flow by the ozone pipe (6).
  • a high ORP value is reached in a short while and the ozone gas can be effectively used in the washing process.
  • the washing machine (1) comprises a storage unit (3) having one or more compartments, wherein the water from the main supply is received and the main water supply is delivered into the tub (2) after passing there through.
  • the ozone pipe (6) extends into the compartments situated in the storage unit (3) and the ozone gas and the water are constantly being fed.
  • the number of the compartments, lengths, and the flow rates of the ozone gas and the main water supply affect the water solubility of the ozone gas ( Figure 2).
  • the washing machine (1) can be a laundry washing machine or a dishwasher.
  • washing machine (1) is utilized as a laundry washing machine
  • a washing program is implemented having an ozonated wash cycle wherein washing is first carried out with ozone, then after this cycle, a detergent wash cycle wherein only detergent is used in the washing process without applying ozone and following with rinsing and spin drying cycles.
  • the washing efficiency is increased, and hygiene and sterilization is realized by providing wash water having a high concentration of ozone gas. Furthermore, the bleaching effect of the water with a high ORP value is strong and less detergent is used to achieve a much greater washing efficiency. When less detergent is used, the amount of the rinse water also decreases and relatively the duration of the washing program gets shorter.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Accessory Of Washing/Drying Machine, Commercial Washing/Drying Machine, Other Washing/Drying Machine (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)

Abstract

A washing machine (1) comprising a tub (2) , an ozone generator (4) and a water pipe (5) providing mains water to the machine is disclosed. The ozone generator feeds ozone via an ozone pipe (6) into the water pipe so as to impact and dissolve with the water flowing in the pipe.

Description

A WASHING MACHINE WITH OZONE FEED DIRECTLY INTO THE WATER SUPPLY PIPE
[0001] The present invention relates to a washing machine wherein ozonated washing is implemented.
[0002] In washing machines, particularly in laundry washing machines, the basic parameters effective in washing are the mechanical movement, the amount of detergent, the temperature and duration. Decreasing any one of these parameters results in the reduction of washing efficiency or the effect of one of the other parameters has to be increased in order to counteract this effect. For example, when the temperature goes down, the washing duration has to be increased. The critical of these parameters are the amount of detergent and the temperature. When the amount of detergent used is reduced, the amount of chemical waste product is decreased; it is then possible to shorten the washing duration with a lesser amount of water usage. However, reducing the amount of detergent results in profoundly lowering the washing efficiency and it is not possible to regain the same effect by changing the other parameters. Therefore alternative washing methods have been developed in order to increase the washing efficiency wherein the amount of detergent usage is reduced. One of these alternative washing methods is washing with ozone.
[0003] The ozone also has a significant bleaching and soil removal effect besides its disinfection effect. The laundry washed is provided to be whiter and disinfected by means of the ozone gas mixed in with the water received from the main supply in the washing machines. Additionally, since ozone has a soil removal effect, the use of detergents and other washing agents are reduced and savings in energy consumption is realized since the washing is carried out in lower temperatures. With the reduction in detergent usage, washing process can be realized using a lesser amount of water.
[0004] In the state of the art German Patent Application no. DE3232057 explanation is given for the disinfection and/or sterilization effect of ozone being used during the washing process in washing machines and dishwashers. Furthermore, ozone gas is also used during the rinsing process in this application.
[0005] In the state of the art United States of America Patent Application no. US5806120, the explication is given for an ozone generator that provides ozone by ionizing the air and a laundry machine wherein this ozone generator is used.
[0006] In the state of the art Canadian Patent Application no. CA2310864, the description is given while the water is received into the washing machine the water passes through a venturi-type differential pressure injector for injecting ozone gas created by the ozone generator into the water.
[0007] In the state of the art Japanese Patent Application no. JP6277385 a multi-faceted ozonated water generator connected and installed between a water feed valve and a water feed port of the washing tank is explained.
[0008] The stability and water solubility of ozone is quite low. One of the parameters designating the water solubility ozone is the oxidation reduction potential (ORP) value. If the ORP value in the water is 600 mV. - 800 mV. the disinfection of water, and if it is above 800 mV. then sterilization of the water is provided.
[0009] The objective of the present invention is to design a washing machine wherein ozone washing is carried out, enhancing the washing efficiency by increasing the water solubility of ozone.
[0010] In the washing machine designed to fulfill the objective of the present invention, explicated in the first claim and the respective claims thereof, ozone gas is given in the reverse direction of the water flow delivered from the main supply in order to increase the solubility of ozone gas in the water.
[0011] The washing machine comprises a water pipe that allows water to be taken into the tub and an ozone pipe having a discharge end extending into the water pipe such that it is in the reverse direction of the water flow in the water pipe and an entrance end connected to the ozone generator.
[0012] The ozone gas, received from the ozone generator and passing through the ozone pipe extending into the water pipe such that its direction is the reverse of the water flow direction in the water pipe, meets with the water flowing in the water pipe and the ozone gas impacts effectively with water according to the principle of reverse flow and the ozone gas is provided to dissolve in the water.
[0013] The ozone pipe providing transmission of the ozone gas is connected to the water pipe such that there is preferably an angle greater than 90°' there between. As a result of this angle between the ozone pipe and the water pipe, the ozone gas impacts reciprocally with the water flow and thus the water solubility speed of the ozone gas is increased.
[0014] By way of the present invention, the water solubility and the ORP value of the ozone gas is increased. Consequently, the ozone gas can be used in the washing process effectively and in a short time.
[0015] The washing machine designed to fulfill the objective of the present invention is illustrated in the attached figures, where: [0016] Figure 1 - is the schematic view of a washing machine.
[0017] Figure 2 - is the schematic view of an embodiment of the present invention.
[0018] Figure 3 - is the schematic view of another embodiment of the present invention.
[0019] The elements illustrated in the figures are numbered as follows:
1. Washing machine
2. Tub
3. Storage unit
4. Ozone generator
5. Water pipe
6. Ozone pipe
[0020] The washing machine (1) comprises a tub (2) wherein washing is carried out, an ozone generator (4) providing to produce the ozone gas, a water pipe (5) with one end connected to the main supply and the other end extending into the tub (2), providing to deliver the water received from the main supply to the tub (2) and an ozone pipe (6) with one end connected to the ozone generator (4), the other end extending into the water pipe (5), providing to deliver the ozone gas received from the ozone generator (4) into the water pipe (5) almost in the reverse direction of the water flowing in the water pipe (5) such that it is caused to impact and dissolve with the water flowing therein (Figure 1 and Figure 2).
[0021] The ozone pipe (6) providing to transmit the ozone gas received from the ozone generator (4) is connected to the water pipe (5) such that there is an angle greater than 90° there between - preferably closer to 180°. As a result of this angle between the ozone pipe (6) and the water pipe (5), the ozone gas is provided to impact with the water flow and increase the water solubility thereof.
[0022] The water solubility and effectiveness of the ozone gas is increased by delivering the ozone gas received from the ozone generator (4) such that it is sprayed into the water pipe (5) in the reverse direction of the water flow by the ozone pipe (6). By mixing the ozone gas with the water received from the main supply by applying the reverse flow method, a high ORP value is reached in a short while and the ozone gas can be effectively used in the washing process.
[0023] In this embodiment of the present invention, the lengths, diameters of the ozone pipe and the water pipe, the flow rates of the ozone gas and the main water supply are all factors that affect the water solubility of the ozone gas. As the length of the ozone pipe is increased and as the diameter gets narrower, the transmission rate of the ozone gas increases. [0024] In another embodiment of the present invention, the washing machine (1) comprises a storage unit (3) having one or more compartments, wherein the water from the main supply is received and the main water supply is delivered into the tub (2) after passing there through. In this embodiment, the ozone pipe (6) extends into the compartments situated in the storage unit (3) and the ozone gas and the water are constantly being fed. In this embodiment, the number of the compartments, lengths, and the flow rates of the ozone gas and the main water supply affect the water solubility of the ozone gas (Figure 2).
[0025] The washing machine (1) can be a laundry washing machine or a dishwasher.
[0026] In the embodiment wherein the washing machine (1) is utilized as a laundry washing machine, a washing program is implemented having an ozonated wash cycle wherein washing is first carried out with ozone, then after this cycle, a detergent wash cycle wherein only detergent is used in the washing process without applying ozone and following with rinsing and spin drying cycles.
[0027] By means of the present invention, the washing efficiency is increased, and hygiene and sterilization is realized by providing wash water having a high concentration of ozone gas. Furthermore, the bleaching effect of the water with a high ORP value is strong and less detergent is used to achieve a much greater washing efficiency. When less detergent is used, the amount of the rinse water also decreases and relatively the duration of the washing program gets shorter.

Claims

Claims
[0001] A washing machine (1) comprising a tub (2) wherein washing is carried out, an ozone generator (4) providing to produce the ozone gas, a water pipe (5) with one end connected to the main water supply and the other end extending into the tub (2), providing to deliver the main water supply to the tub (2) and characterized by an ozone pipe (6) with one end connected to the ozone generator (4), the other end extending into the water pipe (5), providing to deliver the ozone gas received from the ozone generator (4) almost in the reverse direction of the water flowing in the water pipe (5) such that it is caused to impact and dissolve with the water flowing in the water pipe (5).
[0002] A washing machine (1) as in Claim 1, characterized by an ozone pipe (6) that is connected to the water pipe (5) with an angle close to 180° there between.
[0003] A washing machine (1) as in Claim 1, comprising a storage unit (3) having one or more compartments, wherein the water from the main supply is received and the main water supply is delivered into the tub (2) after passing there through and characterized by an ozone pipe (6) extending into the compartments situated in the storage unit (3) providing to feed the ozone gas into the water in the compartment.
EP07727422A 2006-03-28 2007-03-28 A washing machine with ozone feed directly into the water supply pipe Active EP1999308B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL07727422T PL1999308T3 (en) 2006-03-28 2007-03-28 A washing machine with ozone feed directly into the water supply pipe

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TR200601464 2006-03-28
PCT/EP2007/052949 WO2007110434A1 (en) 2006-03-28 2007-03-28 A washing machine with ozone feed directly into the water supply pipe

Publications (2)

Publication Number Publication Date
EP1999308A1 true EP1999308A1 (en) 2008-12-10
EP1999308B1 EP1999308B1 (en) 2013-02-13

Family

ID=38110218

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07727422A Active EP1999308B1 (en) 2006-03-28 2007-03-28 A washing machine with ozone feed directly into the water supply pipe

Country Status (4)

Country Link
EP (1) EP1999308B1 (en)
ES (1) ES2402780T3 (en)
PL (1) PL1999308T3 (en)
WO (1) WO2007110434A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8905052B2 (en) * 2007-08-16 2014-12-09 Arcelik Anonim Sirketi Dishwasher
DE102008024322A1 (en) * 2008-05-20 2009-11-26 BSH Bosch und Siemens Hausgeräte GmbH Dishwasher with ozone generator and method for improving the hygiene in a dishwasher
US8667817B2 (en) 2009-06-11 2014-03-11 Guardian Ignition Interlock Manufacturing, Inc. Ozone laundry system and its method of use with continuous batch and tunnel washers

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE899577A (en) * 1984-05-04 1984-08-31 Hintermeister Edouard Clothes washing machine for domestic and hospital use - has stationary wash chamber and agitates clothes with compressed air and ozone
KR0139307Y1 (en) * 1992-10-16 1999-05-15 윤종용 A washing machine having ozone generating apparatus
CA2310864A1 (en) * 2000-06-02 2001-12-02 Airbrite Technologies Inc. Small-scale laundry ozonation system
KR100392798B1 (en) * 2000-11-16 2003-07-28 (주)에코에이드 Washing machine with function water generator
GB2414023B (en) * 2004-05-11 2008-04-09 Jla Ltd Washing machine, ozone dissolving apparatus and method of washing

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2007110434A1 *

Also Published As

Publication number Publication date
EP1999308B1 (en) 2013-02-13
WO2007110434A1 (en) 2007-10-04
PL1999308T3 (en) 2013-06-28
ES2402780T3 (en) 2013-05-08

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