EP1488110B1 - Pumpe - Google Patents

Pumpe Download PDF

Info

Publication number
EP1488110B1
EP1488110B1 EP03725976A EP03725976A EP1488110B1 EP 1488110 B1 EP1488110 B1 EP 1488110B1 EP 03725976 A EP03725976 A EP 03725976A EP 03725976 A EP03725976 A EP 03725976A EP 1488110 B1 EP1488110 B1 EP 1488110B1
Authority
EP
European Patent Office
Prior art keywords
shaft
rotor
recess
motor
pump
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.)
Expired - Lifetime
Application number
EP03725976A
Other languages
English (en)
French (fr)
Other versions
EP1488110A1 (de
Inventor
Pevrül Arçelik Anonim Sirketi SARIKAYA
Cumhur Arçelik Anonim Sirketi AYVAZOGLU
Cengiz Arçelik Anonim Sirketi DEDE
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
Publication of EP1488110A1 publication Critical patent/EP1488110A1/de
Application granted granted Critical
Publication of EP1488110B1 publication Critical patent/EP1488110B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D13/00—Pumping installations or systems
    • F04D13/02—Units comprising pumps and their driving means
    • F04D13/021—Units comprising pumps and their driving means containing a coupling
    • F04D13/022—Units comprising pumps and their driving means containing a coupling a coupling allowing slip, e.g. torque converter
    • 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
    • F04D29/18—Rotors
    • F04D29/20—Mounting rotors on shafts

Definitions

  • This invention is related to a pump, which has a bearing group with reduced rotor friction resistance.
  • Synchronous pumps which are used for water discharge preferably in the washing machines, must operate on possible low grid voltage and to activate with low energy consumption.
  • a rotor bearing group of the centrifugal pump defined in the European Patent No. 0207430 makes noise, especially during the initial start up of the pump and may cause vibrations and locking of the pump.
  • connection detail of the pump rotor to the motor is defined in the synchronous pumps.
  • An O-ring, located on a mechanical and cylindrical part, which rotates around the central axis in the coupling housing a viscous liquid, is causing loss of power, due to the friction it creates. Therefore, such pumps are starting up by using high grid voltages. More energy is being consumed due to this reason and the pump may not operate in case the voltage is low.
  • a pump according to the preamble of Claim 1 is known from US2002012593 and EP0723329 .
  • the purpose of this invention is to develop a pump, which has a rotor-bearing group that provides the start up of the operation under low voltage conditions and which provides the reduction of the power losses.
  • Pumps which are preferably used in domestic appliances, in dish washing machines and in washmachines, for the purpose of discharging comprise of a motor (12), to provide the operation of the pump, a pump body (13), which covers the motor (12), a shaft (3) which transmits the drive power received from the motor (12) a rotor (4), attached the motor (12), to provide desired liquids to be sucked and pumped by a shaft (3), a coupling (5) to provide the shaft (3) itself to be rotated together with the rotor (4), and a rotor housing (14) which covers the rotor (4) and which directs the liquids to the directions of suction and discharge.
  • the rotor (4) includes more than one vane (15), which provide the liquid to be sucked and pumped is filled in and discharged and has a recess (8) to connect the rotor (4) to the shaft (3) in the center part of the vanes (15).
  • the recess (8) has a ladder-like structure having several cylindrical steps of different diameters and having a protrusion (10) in the form of a slice of a circle in the lowest step.
  • the shaft (3) is being attached to a recess (8), which has a viscous liquid in itself by a coupling (5).
  • the coupling (5) comprises a rotor washer (6) having a central bore to accommodate the shaft (3) to protect the coupling (5), a seal (2) placed below the rotor washer, having a central bore to accommodate the shaft (3) to prevent the escape of the viscous liquid outside the recess and vice versa, a rotor holder (7) connected to the shaft (3) under the seal preferably in a tight fit fashion, with a central bore to accommodate the shaft (3) to transmit the drive from the shaft to the rotor (4).
  • the rotor holder (7) has a cylindrical body (9) to rotate it around its axis inside the recess it is born and includes an extension piece (11) having a form of a circle slice, connected to this body (9) to complete the protrusion (10) in the form of a chord in the recess (8) so that a gap remains in between.
  • the extension (11) moves in the gap, without touching the protrusion (10) in order to determine the direction of rotation of the motors in the pumps during start up.
  • the viscous liquid inside the recess (8) prevents noise and vibration during this movement. Hence, locking are also prevented during this phase.
  • the viscous liquid that creates non-friction movement of the rotor holder (7) connected to the shaft, within the recess by providing a sliding surface between the recess (8) and rotor holder (7) facilitates the movement.
  • the seal (2) comprises of one or more internal surfaces (17) forming the central hole to accommodate the shaft (3); one or more grooves (18) between said surfaces; one or more side surfaces (16) wider than the internal surface(s) and contacting the whole surface of the recess; one or more grooves between side surfaces (16).
  • the extension (11) rests on the protrusion (10) after the first movement of the rotor holder (7), which is driven by the shaft (3) and this causes the movement of the moves coupling (5), together with the rotor (4) as a single piece.
  • a side surface (16) and two internal surfaces (17) having a gap there between are used.
  • the shaft (3) moves easily inside them and the escape of the viscous liquid in the recess (8) is prevented.
  • a side surface (16) in full contact with the recess the friction surface is increased and movement of the seal gets more difficult.
  • the friction in the first movement has been reduced and the operation of the motor (12) by consuming less energy has been provided.
  • the amount of winding wire used on motor (12) is decreased and use of lower magnetic value magnets can be used.
  • the present pump (1) provides optimum and economic usage.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Fluid-Driven Valves (AREA)
  • Eye Examination Apparatus (AREA)
  • Rotary Pumps (AREA)

Claims (3)

  1. Pumpe für Ablasszwecke in Haushaltsgeräten, Geschirrspülmaschinen oder Waschmaschinen, umfassend einen Motor (12), ein Pumpengehäuse (13) zum Aufnehmen des Motors (12), eine Welle (3) zum Übertragen der vom Motor (12) erzeugten Leistung, einen Rotor (4), der mittels einer Vertiefung (8), die in ihrem Inneren ein viskoses Fluid aufweist, an die Welle (3) gekoppelt ist, eine Kupplung (5) mit einer Rotorhalterung (7) mit einer Mittelöffnung zum Aufnehmen einer Welle (3), die mittig nach Haftsitzart mit der Welle verbunden ist, und die die Antriebskraft von er Welle (3) nach Haftsitzart an den Rotor (4) überträgt, ein Rotorgehäuse (14), das den Rotor (4) aufnimmt und diesen in die Richtung des Ansaugens und Pumpens der Fluide lenkt, dadurch gekennzeichnet, dass eine Dichtung (2), die an der Rotorhalterung (7) vorgesehen ist, eine Gleitfläche zwischen der Rotorhalterung (7) und der Vertiefung (8) bereitstellt, um eine reibungsfreie Bewegung der Rotorhalterung (7) in der Vertiefung (8) zu ermöglichen, und verhindert, dass das viskose Fluid aus der Vertiefung (8) austritt, und umgekehrt, und in ihrer Mitte eine Bohrung umfasst, durch die die Welle (3) tritt und in der sich die Welle (3) dreht, wenn der Motor (12) erstmals gestartet wird, ohne sich selbst zu drehen, und beginnt, sich nach dem Starten des Motors (12) als Einheit zusammen mit der Welle (3), dem Rotor (4) und der Rotorhalterung (7) zu bewegen.
  2. Pumpe nach Anspruch 1, dadurch gekennzeichnet, dass die Dichtung (2) eine oder mehrere Innenflächen (17) umfasst, die die Bohrung zum mittigen Aufnehmen der Welle (3) bilden, und eine oder mehrere Seitenflächen (16), die eine größere Fläche aufweisen als die Innenflächen (17) und in vollem Kontakt mit der Vertiefung (8) stehen.
  3. Pumpe nach Anspruch 2, dadurch gekennzeichnet, dass zwischen den Innenflächen (17) eine oder mehrere Nuten (18) angeordnet sind.
EP03725976A 2002-03-21 2003-03-21 Pumpe Expired - Lifetime EP1488110B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
TR200200758 2002-03-21
TR200200758 2002-03-21
PCT/TR2003/000023 WO2003081051A1 (en) 2002-03-21 2003-03-21 Pump

Publications (2)

Publication Number Publication Date
EP1488110A1 EP1488110A1 (de) 2004-12-22
EP1488110B1 true EP1488110B1 (de) 2010-11-10

Family

ID=28450348

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03725976A Expired - Lifetime EP1488110B1 (de) 2002-03-21 2003-03-21 Pumpe

Country Status (6)

Country Link
EP (1) EP1488110B1 (de)
AT (1) ATE487880T1 (de)
AU (1) AU2003231495A1 (de)
DE (1) DE60334891D1 (de)
TR (1) TR200402388T1 (de)
WO (1) WO2003081051A1 (de)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITPD980058A1 (it) * 1998-03-19 1999-09-19 Askoll Holding Srl Dispositivo di trascinamento, con angolo di libera rotazione ampliato fra il motore sincrono a magneti permanenti e l'organo operatore
IT224186Z2 (it) * 1991-03-28 1996-02-09 Askoll Srl Dispositivo di accoppiamento fra rotore e girante di elettropompe o simili con motore a magneti permanenti
IT1281839B1 (it) * 1995-01-19 1998-03-03 Askoll Srl Dispositivo perfezionato di avviamento del rotore di un motore sincrono a magneti permanenti
DE19752372A1 (de) * 1997-11-26 1999-05-27 Guenther Dipl Ing Beez Regelbare Kreiselpumpe, insbesondere für Verbrennungsmotore
US6478555B1 (en) * 1999-06-16 2002-11-12 Lg Electronics, Inc. Apparatus for controlling noise and vibration for drain pump
JP2001342832A (ja) * 2000-05-30 2001-12-14 Honda Motor Co Ltd エンジンのウオータポンプ駆動構造

Also Published As

Publication number Publication date
WO2003081051A1 (en) 2003-10-02
DE60334891D1 (de) 2010-12-23
EP1488110A1 (de) 2004-12-22
ATE487880T1 (de) 2010-11-15
AU2003231495A1 (en) 2003-10-08
TR200402388T1 (tr) 2005-08-22

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