US20040163427A1 - Drum-type washing machine - Google Patents
Drum-type washing machine Download PDFInfo
- Publication number
- US20040163427A1 US20040163427A1 US10/732,450 US73245003A US2004163427A1 US 20040163427 A1 US20040163427 A1 US 20040163427A1 US 73245003 A US73245003 A US 73245003A US 2004163427 A1 US2004163427 A1 US 2004163427A1
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- US
- United States
- Prior art keywords
- drum
- motor
- drain
- washing machine
- water
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
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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
- D06F39/08—Liquid supply or discharge arrangements
- D06F39/083—Liquid discharge or recirculation arrangements
- D06F39/085—Arrangements or adaptations of pumps
-
- 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
- D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
- D06F37/30—Driving arrangements
- D06F37/304—Arrangements or adaptations of electric motors
-
- 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
- D06F2103/42—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers related to filters or pumps
-
- 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
- D06F2103/44—Current or voltage
- D06F2103/48—Current or voltage of the motor driving the pump
Definitions
- the present invention relates to a drum-type washing machine, and more particularly, to a drum-type washing machine having a water circulation system in which one motor is used to drive both the circulation and drain pumps.
- Washing machines generally categorized into a pulsator type for washing laundry using a whirling water current and a drum type for washing laundry using a falling of the laundry.
- FIG. 1 illustrating a general drum-type washing machine
- a detergent box 2 is installed in an upper front part of a washing machine body 1
- an inlet 4 for supply hot/cold water is installed in an upper rear part of the washing machine body.
- a tub 5 is installed within the washing machine body 1
- a drum 6 is installed within the tub to rotate to perform washing and dewatering.
- a drain pump 14 is installed along a drain hose 13 at a lower rear side of the washing machine body 1 , to forcibly drain the water from the tub via the drain hose.
- a filter 15 is installed along a drainpipe 17 , which is connected between the tub 5 and the drain pump 14 at a lower front side of the washing machine body 1 to prevent clogging of the drain pump 14 .
- a multitude of dewatering holes 6 a are formed in the circumferential surface of the drum 6 , enabling a flow of the water in the tub 5 into the drum.
- a plurality of lifts 6 b formed at a predetermined interval adjacent corresponding recesses (not shown) formed in the circumferential surface of the drum 6 , extend from the circumferential surface and protrude into the drum's interior.
- washing and rinsing are performed using a head of water generated from the rotation of the drum 6 .
- the lifts 6 b together with the adjacent recesses periodically lift laundry and water up one side of the drum to a predetermined height and allow the laundry and water to fall down into the lower part of the drum, thereby creating a turbulent flow of the water and a series of ensuing eddy currents.
- a portion of the water collected in the recesses of the drum 6 runs down along a sidewall of the drum 6 , which degrades washer performance, or causes uneven washing, since the washing or rinsing water fails to circulate thoroughly.
- Inadequate or incomplete circulation whereby detergent is incompletely dissolved in the water, resulting in a precipitation of the detergent and a low liquor ratio—is a significant problem in washer performance.
- a drum-type washing machine employs a circulation pump as shown in FIG. 2 in which the water circulation system of a drum-type washing machine is schematically illustrated. That is, to enhance washer performance, the water circulation assembly circulates an undercurrent of the water in the tub by a pumping force of separate pump.
- a circulation pump 16 is separately installed between the drain pump 14 and the filter 15 and driven by a motor (not shown), and a circulation hose 18 is connected to the circulation pump to circulate the water to an upper part of the tub 5 to supply the water to the drum 6 .
- the undercurrent water in the tub 5 is discharged via the drainpipe 17 by the driven circulation pump 16 to circulate to the upper part of the drum 6 along the circulation hose 18 .
- the drain pump 14 is driven by another motor (not shown) to discharge the water via the drain hose 13 .
- the present invention is directed to a drum-type washing machine that substantially obviates one or more of the problems due to limitations and disadvantages of the related art.
- An object of the present invention which has been devised to solve the foregoing problem, lies in providing a drum-type washing machine, by which one motor is used to drive both the circulation and drain pumps.
- a drum-type washing machine comprising a motor having a shaft, the motor enabling forward and reverse rotation of the shaft; a circulation pump, installed on the shaft of the motor, for circulating water by a rotational operation of the motor, the circulating pump moving a first fluid from a water circulation inlet to a water circulation outlet by a centrifugal force; and a drain pump, installed on the shaft of the motor, for draining water by a rotational operation of the motor, the drain pump moving a second fluid from a drain inlet to a drain outlet by a frictional force.
- FIG. 1 is a perspective view of internal components of a general drum-type washing machine
- FIG. 2 is a schematic cross-sectional view of a drum-type washing machine according to a related art, illustrating a water circulation system using a separate circulation pump;
- FIG. 3 is a schematic side view of a drum-type washing machine according to the present invention, highlighting the circulation pump and the drain pump;
- FIG. 4 is a schematic side view of the circulation pump, drain pump, and motor of FIG. 3;
- FIG. 5 is a cross-sectional view of the circulation pump of the drum-type washing machine of the present invention, shown as if cut along a line V-V of FIG. 4;
- FIG. 6 is a cross-sectional view of the drain pump of the drum-type washing machine of the present invention, shown as if cut along a line VI-VI of FIG. 4.
- FIGS. 3 and 4 illustrating a drum-type washing machine according to the present invention
- a motor 40 having a single shaft installed under the tub 5
- a circulation pump 20 and a drain pump 30 are respectively installed, in succession, on the single shaft of the motor, such that the drain pump is installed next to the motor and the circulation pump is installed next to the drain pump.
- the circulation and drain pumps 20 and 30 are both driven by the same motor shaft.
- the other end of the motor shaft, coincident with the shaft of the circulation pump 20 is provided with a circulation water inlet 22 into which water flowing from the tub 5 is sucked by the pumping action of the circulation pump.
- a circulation water outlet 24 via which the sucked water is discharged, is formed at one circumferential side of the circulation pump 20 . Accordingly, the circulation pump 20 pumps the water flowing in the circulation water inlet 22 to the circulation water outlet 24 .
- the water pumped to the circulation water outlet 24 ascends along a circulation passage 26 to be introduced to the tub 5 at an upper point of the front side thereof and in turn enters the drum 6 to soak the laundry therein.
- a drain inlet 32 and a drain outlet 34 are formed at separated points on the circumferential side of the drain pump 30 .
- the drain inlet 32 is a gate via which the water is sucked by pumping
- the drain outlet 34 is a gate via which the water is discharged via a drain passage pipe 36 .
- the circulation pump 20 which is a centrifugal pump including a centrifugal impeller 21 having a spiral configuration
- the direction of an inflow fluid that is sucked in (pumped) by a centrifugal force is perpendicular to that of an outflow fluid that is discharged.
- the centrifugal impeller 21 rotates under the driving force of the motor 40 , water is sucked into the circulation pump 20 via the circulation water inlet 22 formed on its rotational shaft and is jetted from the circulation water outlet 24 .
- the centrifugal impeller 210 rotates clockwise as shown in FIG. 5. If the motor 40 rotates counterclockwise, there is no water flow produced, so that only air is passed through the water outlet 24 .
- FIG. 6 detailing the configuration of the drain pump 30 , which is a frictional pump including a frictional impeller 31 having a plurality of vanes formed on its circumference, to move water in the impeller's rotational direction using a frictional force.
- the water sucked into the drain pump 30 is discharged via the drain outlet 34 when the motor 40 rotates counterclockwise as shown in FIG. 6.
- the circulation and draining of water is performed according to the rotational direction of the motor 40 driving the circulation and drain pumps 20 and 30 .
- the circulation pump 20 circulates the water of the tub 5 by sucking in water from the bottom of the tub via the circulation water inlet 22 and discharging the water via the circulation water outlet 34 .
- the drain pump 30 pumps the fluid of the drain outlet 34 toward the drain inlet 32 , whereby only air is passed through the drain pump; that is, no draining is performed.
- the water proceeding to the circulation passage pipe 26 via the circulation water outlet 24 is pumped to enter the tub 5 (and, in turn, the drum 6 ) from an upper point of the front side of the tub, to be thus re-circulated.
- the circulation pump 20 serves to pump the fluid of the circulation water outlet 24 toward the circulation water inlet 22 , whereby only air is passed through the circulation pump. Hence, there is no movement of the water.
- the frictional impeller 31 of the drain pump 30 rotates counterclockwise, the water is moved by the frictional impeller from the drain inlet 32 toward the drain outlet 34 . Hence, the water in the tub 5 passes through the drain outlet 34 to be discharged from the washing machine via the drain passage pipe 36 .
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Detail Structures Of Washing Machines And Dryers (AREA)
Abstract
The water circulation system of a drum-type washing machine uses one motor to drive both the circulation and drain pumps. The drum-type washing machine includes a motor having a shaft, the motor enabling forward and reverse rotation of the shaft; a circulation pump, installed on the shaft of the motor, for circulating water by a rotational operation of the motor, the circulating pump moving a first fluid from a water circulation inlet to a water circulation outlet by a centrifugal force; and a drain pump, installed on the shaft of the motor, for draining water by a rotational operation of the motor, the drain pump moving a second fluid from a drain inlet to a drain outlet by a frictional force.
Description
- This application claims the benefit of Korean Application No. 10-2002-0078812 filed on Dec. 11, 2002, which is hereby incorporated by reference.
- 1. Field of the Invention
- The present invention relates to a drum-type washing machine, and more particularly, to a drum-type washing machine having a water circulation system in which one motor is used to drive both the circulation and drain pumps.
- 2. Discussion of the Related Art
- Washing machines generally categorized into a pulsator type for washing laundry using a whirling water current and a drum type for washing laundry using a falling of the laundry.
- Referring to FIG. 1, illustrating a general drum-type washing machine, a
detergent box 2 is installed in an upper front part of awashing machine body 1, and aninlet 4 for supply hot/cold water is installed in an upper rear part of the washing machine body. Atub 5 is installed within thewashing machine body 1, and adrum 6 is installed within the tub to rotate to perform washing and dewatering. Adrain pump 14 is installed along adrain hose 13 at a lower rear side of thewashing machine body 1, to forcibly drain the water from the tub via the drain hose. Afilter 15 is installed along adrainpipe 17, which is connected between thetub 5 and thedrain pump 14 at a lower front side of thewashing machine body 1 to prevent clogging of thedrain pump 14. A multitude of dewateringholes 6 a are formed in the circumferential surface of thedrum 6, enabling a flow of the water in thetub 5 into the drum. A plurality oflifts 6 b, formed at a predetermined interval adjacent corresponding recesses (not shown) formed in the circumferential surface of thedrum 6, extend from the circumferential surface and protrude into the drum's interior. - In the above-described drum-type washing machine, washing and rinsing are performed using a head of water generated from the rotation of the
drum 6. Specifically, as thedrum 6 rotates, thelifts 6 b together with the adjacent recesses, periodically lift laundry and water up one side of the drum to a predetermined height and allow the laundry and water to fall down into the lower part of the drum, thereby creating a turbulent flow of the water and a series of ensuing eddy currents. Rather than falling from the predetermined height, however, a portion of the water collected in the recesses of thedrum 6 runs down along a sidewall of thedrum 6, which degrades washer performance, or causes uneven washing, since the washing or rinsing water fails to circulate thoroughly. Inadequate or incomplete circulation—whereby detergent is incompletely dissolved in the water, resulting in a precipitation of the detergent and a low liquor ratio—is a significant problem in washer performance. - To overcome such problems, a drum-type washing machine according to a related art employs a circulation pump as shown in FIG. 2 in which the water circulation system of a drum-type washing machine is schematically illustrated. That is, to enhance washer performance, the water circulation assembly circulates an undercurrent of the water in the tub by a pumping force of separate pump.
- Referring to FIG. 2, a
circulation pump 16 is separately installed between thedrain pump 14 and thefilter 15 and driven by a motor (not shown), and acirculation hose 18 is connected to the circulation pump to circulate the water to an upper part of thetub 5 to supply the water to thedrum 6. Hence, when washing or rinsing is in progress, the undercurrent water in thetub 5 is discharged via thedrainpipe 17 by the drivencirculation pump 16 to circulate to the upper part of thedrum 6 along thecirculation hose 18. Meanwhile, thedrain pump 14 is driven by another motor (not shown) to discharge the water via thedrain hose 13. - Such separate motors, however, increase manufacturing costs and power consumption accordingly. Moreover, the structure of the system, whereby two motors must be driven and controlled separately, is overly complex.
- Accordingly, the present invention is directed to a drum-type washing machine that substantially obviates one or more of the problems due to limitations and disadvantages of the related art.
- An object of the present invention, which has been devised to solve the foregoing problem, lies in providing a drum-type washing machine, by which one motor is used to drive both the circulation and drain pumps.
- It is another object of the present invention to provide a drum-type washing machine which reduces power consumption.
- It is another object of the present invention to provide a drum-type washing machine which reduces manufacturing costs.
- It is another object of the present invention to provide a drum-type washing machine which simplifies the structure of a water circulation system.
- Additional features and advantages of the invention will be set forth in the description which follows, and in part will be apparent to those having ordinary skill in the art upon examination of the following or may be learned from a practice of the invention. The objectives and other advantages of the invention will be realized and attained by the subject matter particularly pointed out in the specification and claims hereof as well as in the appended drawings.
- To achieve these objects and other advantages in accordance with the present invention, as embodied and broadly described herein, there is provided a drum-type washing machine comprising a motor having a shaft, the motor enabling forward and reverse rotation of the shaft; a circulation pump, installed on the shaft of the motor, for circulating water by a rotational operation of the motor, the circulating pump moving a first fluid from a water circulation inlet to a water circulation outlet by a centrifugal force; and a drain pump, installed on the shaft of the motor, for draining water by a rotational operation of the motor, the drain pump moving a second fluid from a drain inlet to a drain outlet by a frictional force.
- It is to be understood that both the foregoing explanation and the following detailed description of the present invention are exemplary and illustrative and are intended to provide further explanation of the invention as claimed.
- The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principle of the invention. In the drawings:
- FIG. 1 is a perspective view of internal components of a general drum-type washing machine;
- FIG. 2 is a schematic cross-sectional view of a drum-type washing machine according to a related art, illustrating a water circulation system using a separate circulation pump;
- FIG. 3 is a schematic side view of a drum-type washing machine according to the present invention, highlighting the circulation pump and the drain pump;
- FIG. 4 is a schematic side view of the circulation pump, drain pump, and motor of FIG. 3;
- FIG. 5 is a cross-sectional view of the circulation pump of the drum-type washing machine of the present invention, shown as if cut along a line V-V of FIG. 4; and
- FIG. 6 is a cross-sectional view of the drain pump of the drum-type washing machine of the present invention, shown as if cut along a line VI-VI of FIG. 4.
- Reference will now be made in detail to the preferred embodiment of the present invention, examples of which are illustrated in the accompanying drawings. Throughout the drawings, like elements are indicated using the same or similar reference designations where possible.
- Referring to FIGS. 3 and 4, illustrating a drum-type washing machine according to the present invention, a
motor 40 having a single shaft installed under thetub 5, and acirculation pump 20 and adrain pump 30 are respectively installed, in succession, on the single shaft of the motor, such that the drain pump is installed next to the motor and the circulation pump is installed next to the drain pump. Thus, the circulation anddrain pumps - The other end of the motor shaft, coincident with the shaft of the
circulation pump 20 is provided with a circulation water inlet 22 into which water flowing from thetub 5 is sucked by the pumping action of the circulation pump. Acirculation water outlet 24, via which the sucked water is discharged, is formed at one circumferential side of thecirculation pump 20. Accordingly, thecirculation pump 20 pumps the water flowing in the circulation water inlet 22 to thecirculation water outlet 24. The water pumped to thecirculation water outlet 24 ascends along acirculation passage 26 to be introduced to thetub 5 at an upper point of the front side thereof and in turn enters thedrum 6 to soak the laundry therein. - A
drain inlet 32 and adrain outlet 34 are formed at separated points on the circumferential side of thedrain pump 30. Thedrain inlet 32 is a gate via which the water is sucked by pumping, and thedrain outlet 34 is a gate via which the water is discharged via adrain passage pipe 36. - Referring to FIG. 5, detailing the configuration of the
circulation pump 20, which is a centrifugal pump including acentrifugal impeller 21 having a spiral configuration, the direction of an inflow fluid that is sucked in (pumped) by a centrifugal force is perpendicular to that of an outflow fluid that is discharged. As thecentrifugal impeller 21 rotates under the driving force of themotor 40, water is sucked into thecirculation pump 20 via thecirculation water inlet 22 formed on its rotational shaft and is jetted from thecirculation water outlet 24. - To perform pumping, the centrifugal impeller210 rotates clockwise as shown in FIG. 5. If the
motor 40 rotates counterclockwise, there is no water flow produced, so that only air is passed through thewater outlet 24. - Referring to FIG. 6, detailing the configuration of the
drain pump 30, which is a frictional pump including africtional impeller 31 having a plurality of vanes formed on its circumference, to move water in the impeller's rotational direction using a frictional force. The water sucked into thedrain pump 30 is discharged via thedrain outlet 34 when themotor 40 rotates counterclockwise as shown in FIG. 6. - Accordingly, the circulation and draining of water is performed according to the rotational direction of the
motor 40 driving the circulation anddrain pumps - In detail, when the
motor 40 rotates in a forward direction, i.e., clockwise, thecirculation pump 20 circulates the water of thetub 5 by sucking in water from the bottom of the tub via thecirculation water inlet 22 and discharging the water via thecirculation water outlet 34. In doing so, thedrain pump 30 pumps the fluid of thedrain outlet 34 toward thedrain inlet 32, whereby only air is passed through the drain pump; that is, no draining is performed. - The water proceeding to the
circulation passage pipe 26 via thecirculation water outlet 24 is pumped to enter the tub 5 (and, in turn, the drum 6) from an upper point of the front side of the tub, to be thus re-circulated. - Meanwhile, when the
motor 40 rotates in a reverse direction, i.e., counterclockwise and opposite to the circulation direction, thecirculation pump 20 serves to pump the fluid of thecirculation water outlet 24 toward thecirculation water inlet 22, whereby only air is passed through the circulation pump. Hence, there is no movement of the water. As thefrictional impeller 31 of thedrain pump 30 rotates counterclockwise, the water is moved by the frictional impeller from thedrain inlet 32 toward thedrain outlet 34. Hence, the water in thetub 5 passes through thedrain outlet 34 to be discharged from the washing machine via thedrain passage pipe 36. - By adopting the present invention to a drum-type washing machine, in which circulation and drain pumps are commonly connected to the shaft of a single motor, the number of motors is reduced, thereby reducing manufacturing costs and power consumption accordingly. Moreover, since the present invention has a configuration enabling circulation or draining by controlling the rotational direction of the single motor, thereby eliminating the need for separately driving and controlling two motors, which simplifies the structure of the system.
- It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention. Thus, it is intended that the present invention cover such modifications and variations, provided they come within the scope of the appended claims and their equivalents.
Claims (10)
1. A drum-type washing machine comprising:
a motor having a shaft, said motor enabling forward and reverse rotation of the shaft;
a circulation pump, installed on the shaft of said motor, for circulating water by a rotational operation of said motor, said circulating pump moving a first fluid from a water circulation inlet to a water circulation outlet by a centrifugal force; and
a drain pump, installed on the shaft of said motor, for draining water by a rotational operation of said motor, said drain pump moving a second fluid from a drain inlet to a drain outlet by a frictional force.
2. The drum-type washing machine as claimed in claim 1 , said circulation pump comprising a centrifugal impeller for moving the fluid of said circulation pump.
3. The drum-type washing machine as claimed in claim 2 , wherein the water circulation inlet is centrally disposed with respect to said circulation pump.
4. The drum-type washing machine as claimed in claim 2 , wherein the water circulation outlet is circumferentially disposed with respect to said circulation pump.
5. The drum-type washing machine as claimed in claim 1 , said drain pump comprising a frictional impeller for moving the fluid of said drain pump.
6. The drum-type washing machine as claimed in claim 5 , wherein the drain inlet is circumferentially disposed with respect to said drain pump at a first point.
7. The drum-type washing machine as claimed in claim 5 , wherein the drain outlet is circumferentially disposed with respect to said drain pump at a second point.
8. The drum-type washing machine as claimed in claim 1 , wherein said drain pump is installed adjacent said motor.
9. The drum-type washing machine as claimed in claim 1 , wherein said circulation pump sucks in and discharges water when said motor rotates in a forward direction.
10. The drum-type washing machine as claimed in claim 1 , wherein said drain pump sucks in and discharges water when said motor rotates in a reverse direction.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KRP2002-0078812 | 2002-12-11 | ||
KR10-2002-0078812A KR100493306B1 (en) | 2002-12-11 | 2002-12-11 | Drum-type Washer |
Publications (1)
Publication Number | Publication Date |
---|---|
US20040163427A1 true US20040163427A1 (en) | 2004-08-26 |
Family
ID=32866854
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/732,450 Abandoned US20040163427A1 (en) | 2002-12-11 | 2003-12-11 | Drum-type washing machine |
Country Status (2)
Country | Link |
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US (1) | US20040163427A1 (en) |
KR (1) | KR100493306B1 (en) |
Cited By (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20090249838A1 (en) * | 2008-04-08 | 2009-10-08 | Jin Woong Kim | Washing machine |
FR2980217A1 (en) * | 2011-09-15 | 2013-03-22 | Fagorbrandt Sas | WASHING MACHINE COMPRISING A WATER RECIRCULATION DEVICE |
CN103938408A (en) * | 2014-03-28 | 2014-07-23 | 张英华 | External circulation centrifugal washing machine, internal circulation centrifugal washing machine, control method of external circulation centrifugal washing machine, and control method of internal circulation centrifugal washing machine |
CN104452170A (en) * | 2013-09-25 | 2015-03-25 | 日立空调·家用电器株式会社 | Drum type washing machine |
US20150128438A1 (en) * | 2013-11-11 | 2015-05-14 | Iwt S.R.L. | Apparatus for abatement of vapors for washing machines and washing machine comprising the apparatus |
JP2017029248A (en) * | 2015-07-29 | 2017-02-09 | シャープ株式会社 | Washing machine |
JP2017064427A (en) * | 2015-10-02 | 2017-04-06 | エルジー エレクトロニクス インコーポレイティド | Washing machine |
US20170101734A1 (en) * | 2015-10-07 | 2017-04-13 | Lg Electronics Inc. | Laundry treating apparatus |
CN107805921A (en) * | 2016-09-09 | 2018-03-16 | 青岛海尔洗衣机有限公司 | A kind of washing machine and its control method |
CN108618718A (en) * | 2017-03-24 | 2018-10-09 | 三花亚威科电器设备(芜湖)有限公司 | Dish-washing machine washing system and dish-washing machine |
US10167589B2 (en) | 2015-10-02 | 2019-01-01 | Lg Electronics Inc. | Method for controlling rinsing cycle of washing machine |
EP3508647A1 (en) * | 2018-01-05 | 2019-07-10 | LG Electronics Inc. | Washing machine and method for controlling the same |
US10738404B2 (en) | 2015-10-02 | 2020-08-11 | Lg Electronics Inc. | Washing machine and method for controlling the same |
US11021827B2 (en) | 2015-10-02 | 2021-06-01 | Lg Electronics Inc. | Method for controlling washing machine |
US11352734B2 (en) * | 2017-12-22 | 2022-06-07 | Qingdao Jiaonan Haier Washing Machine Co., Ltd. | Circulating and filtering device of washing machine and washing machine |
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KR100643331B1 (en) * | 1999-12-11 | 2006-11-13 | 주식회사 엘지이아이 | washing machine |
JP2002336597A (en) * | 2001-05-18 | 2002-11-26 | Sanyo Electric Co Ltd | Washer |
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- 2002-12-11 KR KR10-2002-0078812A patent/KR100493306B1/en not_active IP Right Cessation
-
2003
- 2003-12-11 US US10/732,450 patent/US20040163427A1/en not_active Abandoned
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US3013423A (en) * | 1955-07-08 | 1961-12-19 | George M Gibson | Pump controlled fluid system for pressure type clothes water extraction washing machines |
US3868835A (en) * | 1971-04-27 | 1975-03-04 | Hoover Co | Combination washer-dryer drive arrangement |
US4321809A (en) * | 1980-09-04 | 1982-03-30 | General Electric Company | Washing machine |
Cited By (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20090249838A1 (en) * | 2008-04-08 | 2009-10-08 | Jin Woong Kim | Washing machine |
FR2980217A1 (en) * | 2011-09-15 | 2013-03-22 | Fagorbrandt Sas | WASHING MACHINE COMPRISING A WATER RECIRCULATION DEVICE |
EP2584083A1 (en) * | 2011-09-15 | 2013-04-24 | FagorBrandt SAS | Waschmaschine, die mit einer Vorrichtung zur Wasserrückführung ausgestattet ist |
CN104452170A (en) * | 2013-09-25 | 2015-03-25 | 日立空调·家用电器株式会社 | Drum type washing machine |
JP2015062590A (en) * | 2013-09-25 | 2015-04-09 | 日立アプライアンス株式会社 | Drum type washing machine |
US20150128438A1 (en) * | 2013-11-11 | 2015-05-14 | Iwt S.R.L. | Apparatus for abatement of vapors for washing machines and washing machine comprising the apparatus |
US9526400B2 (en) * | 2013-11-11 | 2016-12-27 | Iwt S.R.L. | Apparatus for abatement of vapors for washing machines and washing machine comprising the apparatus |
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KR20040050995A (en) | 2004-06-18 |
KR100493306B1 (en) | 2005-06-07 |
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