WO2019219361A1 - A dual outlet pump - Google Patents

A dual outlet pump Download PDF

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Publication number
WO2019219361A1
WO2019219361A1 PCT/EP2019/060936 EP2019060936W WO2019219361A1 WO 2019219361 A1 WO2019219361 A1 WO 2019219361A1 EP 2019060936 W EP2019060936 W EP 2019060936W WO 2019219361 A1 WO2019219361 A1 WO 2019219361A1
Authority
WO
WIPO (PCT)
Prior art keywords
opening
water
outlet pump
dual outlet
impeller
Prior art date
Application number
PCT/EP2019/060936
Other languages
French (fr)
Inventor
Yusuf Koc
Levent Akdag
Mert PATKAVAK
Ugur SARITAS
Original Assignee
Arcelik Anonim Sirketi
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Arcelik Anonim Sirketi filed Critical Arcelik Anonim Sirketi
Publication of WO2019219361A1 publication Critical patent/WO2019219361A1/en

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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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/44—Fluid-guiding means, e.g. diffusers
    • F04D29/445—Fluid-guiding means, e.g. diffusers especially adapted for liquid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/44—Fluid-guiding means, e.g. diffusers
    • F04D29/46—Fluid-guiding means, e.g. diffusers adjustable
    • F04D29/48—Fluid-guiding means, e.g. diffusers adjustable for unidirectional fluid flow in reversible pumps
    • F04D29/486—Fluid-guiding means, e.g. diffusers adjustable for unidirectional fluid flow in reversible pumps especially adapted for liquid 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
    • F04D15/0005—Control, e.g. regulation, of pumps, pumping installations or systems by using valves
    • F04D15/0016—Control, e.g. regulation, of pumps, pumping installations or systems by using valves mixing-reversing- or deviation valves

Definitions

  • the present invention relates to a dual outlet pump for horizontal drum washing machines and washer-dryers, capable of both discharging and jetting by using a single motor.
  • At least one pump is used in horizontal drum washing machines.
  • one more pump (jet pump/circulation pump) is used along with a discharge pump.
  • This pump enables water circulation in the machine during washing and rinsing steps.
  • the main washing or rinsing water descending to the lower portion of the tub due to gravity is transmitted back on textiles by means of the jet pump.
  • Using a jet pump significantly saves water because the washing process is performed by continuously circulating already intaken water instead of regularly drawing water from the mains.
  • the discharge pump activates, enabling discharging water from the machine.
  • EP1403521 mentions transmitting water to respective locations from a single inlet and two separate outlets by means of a motor rotatable in clockwise and counter-clockwise directions. Switch valves enable blocking water from advancing into the channel not being used during rotation of the pump in a respective direction.
  • said patent document mentions transmitting water to respective locations from a single inlet and two separate outlets by means of a motor rotatable in clockwise and counter-clockwise directions. Switch valves enable blocking water from advancing into the channel not being used during rotation of the pump in a respective direction.
  • the aim of the present invention is to realize a dual outlet pump not requiring two separate pump systems and valves and thereby having a low production cost.
  • the other aim of the present invention is to realize a dual outlet pump preventing water from being introduced into a duct while water is being pumped to the other duct.
  • Figure 1 is a side sectional view of the dual outlet pump.
  • the dual outlet pump (1) for horizontal drum washing machines and washer-dryers comprises in its most basic form,
  • the dual outlet pump (1) of the invention is for horizontal drum washing machines and washer-dryers, and comprises a cylindrical body (2).
  • a water line is connected on the body (2).
  • the water line enables water intake to the body (2).
  • An impeller (3) is provided, placed in the body (2) and positioned so as not to be concentric with the body (2).
  • the impeller (3) is capable of rotational motion.
  • the impeller (3) is positioned eccentrically in the body (2).
  • the impeller (3) is capable of circularly rotating by means of the actuator about the point where it is connected in the body (2) in both clockwise and counter-clockwise directions.
  • a control unit is provided for the actuator to rotate the impeller (3) in desired direction and revolutions.
  • At least one blade (31) extends from the impeller (3) to convey the water in the body (2).
  • four blades (31) extend from the impeller (3).
  • An opening (4) is opened on the body (2) to enable water discharge.
  • the opening (4) is eccentrically opened on the cylindrical surface of the body (2) with respect to the position of the blade (31).
  • the opening (4) is provided on the lower portion of the body (2) with respect to gravity.
  • a jet line (5) is connected on the opening (4).
  • the jet line (5) is shaped as a tapering duct and its narrower portion is connected to the opening (4).
  • the wide portion of the jet line (5) extends upwards in opposite direction to gravity.
  • a discharge line (6) is connected on the opening (4).
  • the discharge line (6) is shaped as an expanding duct and its wider portion is connected to the opening (4).
  • the narrower portion of the discharge line (6) extends upwards in opposite direction to gravity.
  • the dual outlet pump (1) of the invention is able to pump water to both the discharge line (6) and the jet line (5) in horizontal drum washing machines and washer-dryers.
  • a dual outlet pump (1) is thus realized which does not require two separate pump systems and valves and thereby has a low production cost.
  • the actuator rotates the impeller (3) in clockwise direction upon the command sent by the control unit.
  • the impeller (3) Upon rotation of the impeller (3) in clockwise direction, the water introduced to the body (2) by the water line is conveyed to the opening (4) by the blade (31) connected to the impeller (3).
  • the propeller force provided by the blade (31) enables directing the water from the opening to the discharge line (6).
  • Water is not introduced to the jet line (5) while the water is being directed directly to the discharge line (6) due to the eccentric position of the impeller (3) in the body (2) and the eccentric position of the opening (4) opened on the body (2).
  • the geometry of the dual outlet pump (1) enables water to advance through a single water line.
  • the actuator rotates the impeller (3) in counter-clockwise direction upon the command sent by the control unit.
  • the impeller (3) Upon rotation of the impeller (3) in counter-clockwise direction, the water introduced to the body (2) by the water line is conveyed to the opening (4) by the blade (31) connected to the impeller (3).
  • the propeller force provided by the blade (31) enables directing the water from the opening to the jet line (5).
  • Water is not introduced to the discharge line (6) while the water is being directed directly to the jet line (5) due to the eccentric position of the impeller (3) in the body (2) and the eccentric position of the opening (4) opened on the body (2).
  • the geometry of the dual outlet pump (1) enables water to advance through a single water line.

Abstract

The present invention relates to a dual outlet pump (1) for horizontal drum washing machines and washer-dryers, comprising one body (2), at least one water line (placed on the body (2), enabling water intake, at least one impeller (3) placed in the body (2) and positioned eccentrically in the body (2), at least one actuator enabling the impeller (3) to rotate, a control unit adapted to control the actuator, at least one opening (4) opened on the surface of the body (2), at least one jet line (5) connected to the opening (4) and at least one discharge line (6) connected to the opening (4).

Description

A DUAL OUTLET PUMP
The present invention relates to a dual outlet pump for horizontal drum washing machines and washer-dryers, capable of both discharging and jetting by using a single motor.
At least one pump (discharge pump) is used in horizontal drum washing machines. In many washing machines, one more pump (jet pump/circulation pump) is used along with a discharge pump. This pump enables water circulation in the machine during washing and rinsing steps. In other terms, the main washing or rinsing water descending to the lower portion of the tub due to gravity is transmitted back on textiles by means of the jet pump. Using a jet pump significantly saves water because the washing process is performed by continuously circulating already intaken water instead of regularly drawing water from the mains.
These two pumps are used independently and at separate times. When the washing process is completed and water is to be discharged, the discharge pump activates, enabling discharging water from the machine.
State of the art patent document no. DE3442907 mentions transmitting water to respective locations from a single inlet and a single outlet by means of a motor rotatable in clockwise and counter-clockwise directions. A barrier blocks the water in order to enable all of the water to advance to the pump outlet during rotation of the blades in the respective direction. The system operates using the same logic when the impeller rotates in the other direction. Water does not redundantly circulate within the system and can be directed directly to the outlet. However, it is mentioned in said patent document that water can be directed to the single outlet with minimum loss by means of the guide element positioned on the axis by enabling the motor to rotate in two separate directions.
State of the art patent document no. EP1403521 mentions transmitting water to respective locations from a single inlet and two separate outlets by means of a motor rotatable in clockwise and counter-clockwise directions. Switch valves enable blocking water from advancing into the channel not being used during rotation of the pump in a respective direction. However, said patent document mentions transmitting water to respective locations from a single inlet and two separate outlets by means of a motor rotatable in clockwise and counter-clockwise directions. Switch valves enable blocking water from advancing into the channel not being used during rotation of the pump in a respective direction.
The aim of the present invention is to realize a dual outlet pump not requiring two separate pump systems and valves and thereby having a low production cost.
The other aim of the present invention is to realize a dual outlet pump preventing water from being introduced into a duct while water is being pumped to the other duct.
A dual outlet pump realized to achieve the aims of the present invention is illustrated in the accompanying drawings, wherein:
Figure 1: is a side sectional view of the dual outlet pump.
The elements in the figures are numbered individually and the correspondence of these numbers are given hereinafter.
  1. Dual outlet pump
  2. Body
  3. Impeller
    31. Blade
  4. Opening
  5. Jet line
  6. Discharge line
The dual outlet pump (1) for horizontal drum washing machines and washer-dryers, comprises in its most basic form,
  • at least one body (2),
  • at least one water line placed on the body (2), enabling water intake,
  • at least one impeller (3) placed in the body (2),
  • at least one actuator enabling the impeller (3) to move rotationally,
  • a control unit adapted to control the actuator,
  • at least one opening (4) opened on the surface of the body (2),
  • at least one jet line (5) connected to the opening (4),
  • at least one discharge line (6) connected to the opening (4).
The dual outlet pump (1) of the invention is for horizontal drum washing machines and washer-dryers, and comprises a cylindrical body (2). A water line is connected on the body (2). The water line enables water intake to the body (2). An impeller (3) is provided, placed in the body (2) and positioned so as not to be concentric with the body (2). The impeller (3) is capable of rotational motion. In a preferred embodiment of the invention, the impeller (3) is positioned eccentrically in the body (2). The impeller (3) is capable of circularly rotating by means of the actuator about the point where it is connected in the body (2) in both clockwise and counter-clockwise directions. A control unit is provided for the actuator to rotate the impeller (3) in desired direction and revolutions. In a preferred embodiment of the invention, at least one blade (31) extends from the impeller (3) to convey the water in the body (2). In a preferred embodiment of the invention, four blades (31) extend from the impeller (3). An opening (4) is opened on the body (2) to enable water discharge. The opening (4) is eccentrically opened on the cylindrical surface of the body (2) with respect to the position of the blade (31). In a preferred embodiment of the invention, the opening (4) is provided on the lower portion of the body (2) with respect to gravity. A jet line (5) is connected on the opening (4). The jet line (5) is shaped as a tapering duct and its narrower portion is connected to the opening (4). The wide portion of the jet line (5) extends upwards in opposite direction to gravity. A discharge line (6) is connected on the opening (4). The discharge line (6) is shaped as an expanding duct and its wider portion is connected to the opening (4). The narrower portion of the discharge line (6) extends upwards in opposite direction to gravity.
The dual outlet pump (1) of the invention is able to pump water to both the discharge line (6) and the jet line (5) in horizontal drum washing machines and washer-dryers. A dual outlet pump (1) is thus realized which does not require two separate pump systems and valves and thereby has a low production cost.
When it is intended to pump water to the discharge line (6), the actuator rotates the impeller (3) in clockwise direction upon the command sent by the control unit. Upon rotation of the impeller (3) in clockwise direction, the water introduced to the body (2) by the water line is conveyed to the opening (4) by the blade (31) connected to the impeller (3). The propeller force provided by the blade (31) enables directing the water from the opening to the discharge line (6). Water is not introduced to the jet line (5) while the water is being directed directly to the discharge line (6) due to the eccentric position of the impeller (3) in the body (2) and the eccentric position of the opening (4) opened on the body (2). The geometry of the dual outlet pump (1) enables water to advance through a single water line.
When it is intended to pump water to the jet line (5), the actuator rotates the impeller (3) in counter-clockwise direction upon the command sent by the control unit. Upon rotation of the impeller (3) in counter-clockwise direction, the water introduced to the body (2) by the water line is conveyed to the opening (4) by the blade (31) connected to the impeller (3). The propeller force provided by the blade (31) enables directing the water from the opening to the jet line (5). Water is not introduced to the discharge line (6) while the water is being directed directly to the jet line (5) due to the eccentric position of the impeller (3) in the body (2) and the eccentric position of the opening (4) opened on the body (2). The geometry of the dual outlet pump (1) enables water to advance through a single water line.

Claims (8)

  1. A dual outlet pump (1) for horizontal drum washing machines and washer-dryers, comprising in its most basic form, at least one body (2), and at least one water line placed on the body (2), enabling water intake, characterized by
    - at least one impeller (3) placed in the body (2) and positioned eccentrically in the body (2),
    - at least one actuator enabling the impeller (3) to move rotationally,
    - a control unit adapted to control the actuator,
    - at least one opening (4) opened on the surface of the body (2),
    - at least one jet line (5) connected to the opening (4),
    - at least one discharge line (6) connected to the opening (4).
  2. A dual outlet pump (1) according to claim 1, comprising at least one blade (31) extending from the impeller (3) to convey the water in the body (2).
  3. A dual outlet pump (1) according to claim 3, comprising four blades (31) extending from the impeller (3).
  4. A dual outlet pump (1) according to claims 1 to 3, comprising an opening (4) eccentrically opened on the cylindrical surface of the body (2) with respect to the position of the blade (31).
  5. A dual outlet pump (1) according claims 1 to 2, comprising an opening (4) opened to the lower portion of the body (2) with respect to gravity.
  6. A dual outlet pump (1) according to claims 1 to 5, comprising a jet line (5) shaped as a tapering duct, whose narrower portion is connected to the opening (4).
  7. A dual outlet pump (1) according to claims 1 to 6, comprising a discharge line (6) shaped as an expanding duct, whose wider portion is connected to the opening (4).
  8. The washing machine comprising a dual outlet pump (1) according to any one of the preceding claims.
PCT/EP2019/060936 2018-05-18 2019-04-29 A dual outlet pump WO2019219361A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TR201807054 2018-05-18
TRA2018/07054 2018-05-18

Publications (1)

Publication Number Publication Date
WO2019219361A1 true WO2019219361A1 (en) 2019-11-21

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ID=66349544

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2019/060936 WO2019219361A1 (en) 2018-05-18 2019-04-29 A dual outlet pump

Country Status (1)

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WO (1) WO2019219361A1 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3136254A (en) * 1961-06-05 1964-06-09 Blackstone Corp Bi-directional pump
DE3442907A1 (en) 1984-11-24 1986-06-05 Robert Bosch Gmbh, 7000 Stuttgart Pump unit having an electric drive motor operable in either direction of rotation and designed as a synchronous motor
US5486089A (en) * 1994-02-28 1996-01-23 Daewoo Electronics Co., Ltd. Directional changeover pump
US6167733B1 (en) * 1998-06-30 2001-01-02 Daewoo Electronics Co., Ltd. Drum type washing machine having a pump integrally formed with a filter
EP1403521A1 (en) 2002-09-26 2004-03-31 Nidec Shibaura Corporation Pump having one inlet and two outlets

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3136254A (en) * 1961-06-05 1964-06-09 Blackstone Corp Bi-directional pump
DE3442907A1 (en) 1984-11-24 1986-06-05 Robert Bosch Gmbh, 7000 Stuttgart Pump unit having an electric drive motor operable in either direction of rotation and designed as a synchronous motor
US5486089A (en) * 1994-02-28 1996-01-23 Daewoo Electronics Co., Ltd. Directional changeover pump
US6167733B1 (en) * 1998-06-30 2001-01-02 Daewoo Electronics Co., Ltd. Drum type washing machine having a pump integrally formed with a filter
EP1403521A1 (en) 2002-09-26 2004-03-31 Nidec Shibaura Corporation Pump having one inlet and two outlets

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