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WO1998035601A1 - Separateur cyclone destine a un aspirateur - Google Patents

Separateur cyclone destine a un aspirateur Download PDF

Info

Publication number
WO1998035601A1
WO1998035601A1 PCT/SE1998/000240 SE9800240W WO9835601A1 WO 1998035601 A1 WO1998035601 A1 WO 1998035601A1 SE 9800240 W SE9800240 W SE 9800240W WO 9835601 A1 WO9835601 A1 WO 9835601A1
Authority
WO
WIPO (PCT)
Prior art keywords
cyclone
cyclone separator
air
cyclones
separator according
Prior art date
Application number
PCT/SE1998/000240
Other languages
English (en)
Inventor
Evert Krantz
Original Assignee
Aktiebolaget Electrolux
Freshman Aktiebolag
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 Aktiebolaget Electrolux, Freshman Aktiebolag filed Critical Aktiebolaget Electrolux
Publication of WO1998035601A1 publication Critical patent/WO1998035601A1/fr

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
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/10—Filters; Dust separators; Dust removal; Automatic exchange of filters
    • A47L9/16—Arrangement or disposition of cyclones or other devices with centrifugal action
    • A47L9/1616—Multiple arrangement thereof
    • A47L9/1625—Multiple arrangement thereof for series flow
    • A47L9/1633—Concentric cyclones
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
    • B04C5/00—Apparatus in which the axial direction of the vortex is reversed
    • B04C5/14—Construction of the underflow ducting; Apex constructions; Discharge arrangements ; discharge through sidewall provided with a few slits or perforations
    • B04C5/185—Dust collectors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
    • B04C5/00—Apparatus in which the axial direction of the vortex is reversed
    • B04C5/24—Multiple arrangement thereof
    • B04C5/26—Multiple arrangement thereof for series flow

Definitions

  • the present invention relates to a cyclone separator for a vacuum cleaner, the separator comprising an inlet part, an outlet part, and first and second cyclones which are connected in series and disposed between the inlet and outlet parts.
  • Vacuum cleaners comprising serially-connected cyclones for separating particles are previously known. See, for example, EP 489565 and US 5090976.
  • one of the cyclones is placed within the other cyclone.
  • the two cyclones are, with the exception of their common inlets and outlets, separated from each other with regard to flow conditions and, as such, each cyclone has its own collecting container which separated particles fall down into under the influence of gravity.
  • the two collecting containers are separated by a removable intermediate wall.
  • the present invention is directed toward a more simple arrangement for a vacuum cleaner having a two stage cyclone separator wherein particles separated by the two cyclones are collected in a common container.
  • the container has no separating wall and is preferably equipped with a conventional plastic bag for collection of dust particles.
  • a cyclone separator in accordance with the present invention, includes an inlet part, an outlet part, and first and second cyclones.
  • the first and second cyclones are connected in series, and are disposed between the inlet part and the outlet part.
  • the first cyclone concentrically surrounds the second cyclone, and air travels in a first direction in the first cyclone and in a second, opposite direction in the second cyclone.
  • the change in air direction between the first and second cyclones helps to minimize the amount of particles communicated from the first cyclone to the second cyclone.
  • the first and second cyclones each have an opening facing a common collecting container for particles separated by the cyclones.
  • the collecting container is disposed beneath the cyclones.
  • the opening of the second cyclone includes a valve which is operable to close the second cyclone opening when the cyclone separator is being used. Particles separated by the second cyclone are retained in the second cyclone by the valve until the vacuum cleaner is turned off.
  • the valve comprises a flap member which is pivotally secured to an edge of the second cyclone opening.
  • the flap member is pivotally moved to a closed position by pressure differentials when the vacuum cleaner is operated, and pivotally moves to an open position due to gravity when the vacuum cleaner is turned off.
  • FIG. 1 is a schematic vertical view showing a vacuum cleaner provided with a cyclone separator according to the present invention
  • Fig. 2 is a partially-broken vertical view through the cyclone separator according to the present invention.
  • Fig. 3 is a top plan view of the cyclone separator shown in Fig. 2;
  • Fig. 4 is a sectional view of the cyclone separator as seen along line IV-IV in Fig. 2.
  • a vacuum cleaner including a vacuum cleaner housing 10 enclosing a vacuum source designed as a motor-fan unit 11 is illustrated.
  • the inlet side of the fan is connected to a cyclone separator 12 arranged at a front part of the vacuum cleaner.
  • the cyclone separator 12 has an inlet part 17, an outlet part 19, and first and second cyclones.
  • the inlet part 17 includes a sleeve 18 to which the hose 13 is connected.
  • the outlet part 19 defines an opening 20 which is connected to the inlet side of the fan.
  • the first and second cyclones are connected in series between the inlet part 17 and outlet part 19.
  • the first cyclone comprises a first cyclone housing 21 having a circular cross section into which air flows tangentially from the inlet part 17 through a first inlet 22.
  • the cyclone housing 21 supports an annular liner 23 shaped as a hollow, truncated, up-side-down cone defining a centrally arranged first opening 24.
  • the cyclone housing 21 extends below the liner 23 thereby forming a circular flange part 25 which can be placed in a sleeve-shaped enlargement 26 of a cylinder shaped container 27.
  • the liner 23 is disposed relatively between the first inlet 22 and the flange part 25, as illustrated.
  • the first cyclone is further provided with a first outlet 28 comprising several openings arranged at the periphery of a circle spaced a distance from and radially inside the cyclone housing 21.
  • the openings forming the first outlet 28 continue into gradually narrowing channels 29, each channel having side walls formed by two adjacent plate-shaped elements 30 which are secured between an upper annular plate 31 and a lower annular plate 32.
  • the upper plate 31 also forms a roof part of the first cyclone housing 21.
  • the upper plate 31 supports a second cyclone housing 33 for the second cyclone.
  • the second cyclone housing 33 has an upper cylinder-shaped part 34 which is radially surrounded by the lower annular shaped plate 32.
  • the cyclone housing 33 also has a lower-tube shaped part 35 which extends through the inlet opening 24 of the liner 23, as illustrated. Relatively beneath the liner 23, the tube-shaped part 35 has a gradually decreasing diameter and a second opening 36 facing the container 27.
  • the second opening 36 is provided with a flap member 37 which is pivotally supported at the periphery of the second opening 36 by means of a hinge 38.
  • the outlet openings of the channels 29 form second inlet openings 39 which are directed tangentially with respect to the second cyclone housing 33.
  • the channels 29 are directed such that the air flow direction in the second cyclone is reversed with respect to the air flow direction in the first cyclone, as illustrated in FIG. 4.
  • the second cyclone also has a second outlet 40 which is a central circular opening in the upper plate 31.
  • the second outlet 40 via the tube shaped outlet part 19, is connected to the opening 20.
  • the container 27 has a circular plate 41 which, by means of widely spaced-apart distance means 42, is fixed above a bottom wall 43 of the container to define a chamber 44 between the plate 41 and the bottom wall 43.
  • the plate 41 which may be perforated, has a somewhat smaller diameter than the inner diameter of the container 27, thereby creating a circumferential gap or slot 45 between the container side wall and the periphery of the plate 41.
  • the chamber 44 and gap or slot 45 are, by means of a nipple 46 and a tube connection 47, connected to a valve 48 placed on the outlet part 19.
  • the operating condition of the valve 48 is controlled by a control means 49.
  • the valve 48 is also, via a tube connection 50, connected to the outlet part 19. Accordingly, when the valve 48 is in an open position, the chamber 44 and slot 45 are in fluid communication with the outlet part 19.
  • the container 27 receives a bag 51 made of a material which is air impermeable, such as plastic.
  • the upper end of the bag 51 is clamped between the enlargement 26 of the container 27 and the flange part 25 of the first cyclone housing, and effectively seals the upper extent of the gap or slot 45.
  • the device operates in the following manner.
  • an under-atmospheric pressure is created in the cyclone separator.
  • Air turbulence causes the flap member 37 to initially pivotally oscillate. Thereafter, pressure differences between the first and second cyclones cause the flap member 37 to pivot to a closed position to seal the second opening 36.
  • dust laden air is drawn into the cyclone separator through the inlet part 17 and the inlet opening 22.
  • the dust-laden air flows via the tangentially directed opening 22 into the first cyclone housing 21 and creates a first vortex which surrounds the cylinder part 34 of the second cyclone housing 33. Due to centrifugal forces, particles in the first vortex are thrown radially outward and then fall downwardly, due to gravity, through the first opening 24 and into the bag 51 inserted in the container 27. At the same time, partially cleaned air from the more central area of the first vortex flows through the first outlet 28 and the channels 29 and into the second cyclone housing 33 through the second inlet openings 39.
  • the inflowing air in the second cyclone housing creates a second, inner vortex having a smaller diameter and rotating in an opposite direction with respect to the first or outer vortex. Due to the inertia of the particles and the rapid change of direction of the air stream, most of the particles are unable to enter the second cyclone and instead remain with the first vortex in the first cyclone housing 21. In the second cyclone housing 33 additional particles are centrifugally separated. These additional separated particles fall downwardly and collect on the flap member 37.
  • the cyclone separator is emptied by removing the container 27 from the flange part 25 of the cyclone housing 21 whereby the bag 51 with the collected particles can be removed from the container and thrown away.
  • the open end of the bag is clamped between the flange part 25 and the enlargement 26 at the upper end of the container 27 after which the vacuum cleaner is started.
  • the valve 48 is then in an open position. This means that an under-atmospheric pressure is established in the chamber 44 and air which is trapped between the bag 51 and the container wall will be drawn put through the tube connection 47, 50 and draw the bag 51 against the container wall and the plate 41.
  • the valve 48 is closed.
  • the vacuum cleaner is preferably provided with means for sensing a pressure drop and activating a valve which cuts off the supply of air to the cyclone.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cyclones (AREA)
  • Filters For Electric Vacuum Cleaners (AREA)

Abstract

L'invention concerne un séparateur cyclone destiné à un aspirateur. Ce séparateur comprend une partie entrée (17), une partie sortie (19) et un premier et un second cyclone qui sont montés en série et disposés entre la partie entrée et la partie sortie. Le premier et le second cyclone sont respectivement dotés d'une ouverture (24, 36) faisant face à un collecteur (27) commun. La chambre collectrice reçoit les particules séparées par les cyclones et est placée sous les deux cyclones. L'ouverture (36) du second cyclone est dotée d'une valve (37) qui ferme automatiquement l'ouverture (36) du second cyclone lorsque le séparateur cyclone est utilisé.
PCT/SE1998/000240 1997-02-13 1998-02-12 Separateur cyclone destine a un aspirateur WO1998035601A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9700498-0 1997-02-13
SE9700498A SE508525C2 (sv) 1997-02-13 1997-02-13 Cyklonavskiljare för en dammsugare

Publications (1)

Publication Number Publication Date
WO1998035601A1 true WO1998035601A1 (fr) 1998-08-20

Family

ID=20405775

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE1998/000240 WO1998035601A1 (fr) 1997-02-13 1998-02-12 Separateur cyclone destine a un aspirateur

Country Status (2)

Country Link
SE (1) SE508525C2 (fr)
WO (1) WO1998035601A1 (fr)

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002003844A1 (fr) * 2000-07-06 2002-01-17 John Herbert North Appareil collecteur de poussiere et de particules pour separateurs cyclone
WO2002003845A1 (fr) * 2000-07-06 2002-01-17 John Herbert North Separateur air/particules ameliore
WO2002069778A1 (fr) * 2001-02-13 2002-09-12 Fortum Oyj Procede et dispositif de separation de poussiere dans un aspirateur central
GB2381484A (en) * 2000-06-16 2003-05-07 Polar Light Ltd Method and apparatus of particle transfer in multi-stage particle separators
RU2204312C2 (ru) * 2000-06-24 2003-05-20 Самсунг Квангджу Электроникс Ко., Лтд. Пылесос вертикальной компоновки (варианты)
GB2385292A (en) * 2002-02-16 2003-08-20 Dyson Ltd Cyclonic separating apparatus
WO2004008933A1 (fr) * 2002-07-24 2004-01-29 Hoover Limited Aspirateur
WO2004030508A1 (fr) * 2002-10-02 2004-04-15 John Herbert North Appareil de separation air/particules ameliore et procede associe
GB2367774B (en) * 2000-07-06 2004-04-28 John Herbert North Improved air/particle separator
GB2402897A (en) * 2003-06-16 2004-12-22 Samsung Kwangju Electronics Co Dual cyclone separator module
US7163568B2 (en) 2000-01-14 2007-01-16 Electrolux Home Care Products Ltd. Bagless dustcup
US7228592B2 (en) 2000-01-14 2007-06-12 Electrolux Homecare Products Ltd. Upright vacuum cleaner with cyclonic air path
GB2435626A (en) * 2006-02-24 2007-09-05 Samsung Kwangju Electronics Co Cyclonic dust-collecting appratus for a vacuum cleaner
CN100420416C (zh) * 2006-04-06 2008-09-24 苏州金莱克家用电器有限公司 多进风口分离装置及含有该装置的尘杯装置
US7722693B2 (en) 2006-02-24 2010-05-25 Samsung Gwangju Electronics Co., Ltd Cyclone dust collecting apparatus for vacuum cleaner
JP2014155901A (ja) * 2013-02-15 2014-08-28 Hiroshima Univ サイクロン式分級装置
US9149165B2 (en) 2012-03-08 2015-10-06 Bissell Homecare, Inc. Vacuum cleaner and vacuum cleaner system
WO2017063703A1 (fr) * 2015-10-15 2017-04-20 Alfred Kärcher Gmbh & Co. Kg Aspirateur de nettoyage
WO2017171596A1 (fr) * 2016-03-30 2017-10-05 Husqvarna Ab Soupape de décharge et dispositif de tuyau souple pour collecteurs de poussière, collecteur de poussière, et procédé de fonctionnement de collecteur de poussière
CN110250998A (zh) * 2019-07-09 2019-09-20 珠海格力电器股份有限公司 分离器及吸尘装置
SE545689C2 (en) * 2020-06-11 2023-12-05 Husqvarna Ab A dust container system for industrial dust extractors, a dust extractor and a dust container holder

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5090976A (en) * 1990-09-21 1992-02-25 Notetry Limited Dual cyclonic vacuum cleaner with disposable liner
EP0489565A1 (fr) * 1990-12-03 1992-06-10 Notetry Limited Enveloppe et aspirateur cyclone muni de celle-ci
US5145499A (en) * 1990-09-21 1992-09-08 Notetry Limited Disposable bin for cyclonic vacuum

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5090976A (en) * 1990-09-21 1992-02-25 Notetry Limited Dual cyclonic vacuum cleaner with disposable liner
US5145499A (en) * 1990-09-21 1992-09-08 Notetry Limited Disposable bin for cyclonic vacuum
EP0489565A1 (fr) * 1990-12-03 1992-06-10 Notetry Limited Enveloppe et aspirateur cyclone muni de celle-ci

Cited By (42)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7228592B2 (en) 2000-01-14 2007-06-12 Electrolux Homecare Products Ltd. Upright vacuum cleaner with cyclonic air path
US7163568B2 (en) 2000-01-14 2007-01-16 Electrolux Home Care Products Ltd. Bagless dustcup
GB2381484A (en) * 2000-06-16 2003-05-07 Polar Light Ltd Method and apparatus of particle transfer in multi-stage particle separators
GB2381484B (en) * 2000-06-16 2004-12-15 Polar Light Ltd Method and apparatus of particle transfer in multi-stage particle separators
RU2204312C2 (ru) * 2000-06-24 2003-05-20 Самсунг Квангджу Электроникс Ко., Лтд. Пылесос вертикальной компоновки (варианты)
EP1516574A3 (fr) * 2000-07-06 2005-03-30 John Herbert North Dispositif séparateur de poussière et de particles perfectionné
WO2002003845A1 (fr) * 2000-07-06 2002-01-17 John Herbert North Separateur air/particules ameliore
GB2367511B (en) * 2000-07-06 2003-12-17 John Herbert North Improved dust/particle collecting arrangement for cyclone separators
WO2002003844A1 (fr) * 2000-07-06 2002-01-17 John Herbert North Appareil collecteur de poussiere et de particules pour separateurs cyclone
US6936095B2 (en) 2000-07-06 2005-08-30 John Herbert North Air/particle separator
GB2367774B (en) * 2000-07-06 2004-04-28 John Herbert North Improved air/particle separator
EP1520505A3 (fr) * 2000-07-06 2005-04-13 John Herbert North Appareil collecteur de poussière et de particules pour séparateurs cyclone
US6818033B2 (en) 2000-07-06 2004-11-16 John Herbert North Dust/particle collecting arrangement for cyclone separators
WO2002069778A1 (fr) * 2001-02-13 2002-09-12 Fortum Oyj Procede et dispositif de separation de poussiere dans un aspirateur central
GB2385292B (en) * 2002-02-16 2006-01-11 Dyson Ltd Cyclonic separating apparatus
GB2385292A (en) * 2002-02-16 2003-08-20 Dyson Ltd Cyclonic separating apparatus
US7291190B2 (en) 2002-02-16 2007-11-06 Dyson Technology Limited Cyclonic separating apparatus
CN100335180C (zh) * 2002-02-16 2007-09-05 戴森技术有限公司 气旋分离装置
AU2003202714B2 (en) * 2002-02-16 2006-10-19 Dyson Technology Limited Cyclonic separating apparatus
WO2003068407A1 (fr) * 2002-02-16 2003-08-21 Dyson Ltd Appareil de separation a cyclone
WO2004008933A1 (fr) * 2002-07-24 2004-01-29 Hoover Limited Aspirateur
GB2395678A (en) * 2002-10-02 2004-06-02 John Herbert North Valve closure for a cyclone
GB2395678B (en) * 2002-10-02 2005-06-29 John Herbert North Improved air/particle separation apparatus and method
WO2004030508A1 (fr) * 2002-10-02 2004-04-15 John Herbert North Appareil de separation air/particules ameliore et procede associe
AU2004202211B2 (en) * 2003-06-16 2006-02-16 Samsung Electronics Co., Ltd. Dust Collecting Apparatus for a Vacuum Cleaner having Two Cyclone Chambers
GB2402897A (en) * 2003-06-16 2004-12-22 Samsung Kwangju Electronics Co Dual cyclone separator module
GB2402897B (en) * 2003-06-16 2005-06-08 Samsung Kwangju Electronics Co Dust-collecting apparatus for a vacuum cleaner
GB2435626A (en) * 2006-02-24 2007-09-05 Samsung Kwangju Electronics Co Cyclonic dust-collecting appratus for a vacuum cleaner
GB2435626B (en) * 2006-02-24 2008-08-27 Samsung Kwangju Electronics Co Cyclonic dust-collecting apparatus for a vacuum cleaner
US7678166B2 (en) 2006-02-24 2010-03-16 Samsung Gwanju Electronics Co., Ltd. Cyclone dust collecting apparatus for vacuum cleaner
US7722693B2 (en) 2006-02-24 2010-05-25 Samsung Gwangju Electronics Co., Ltd Cyclone dust collecting apparatus for vacuum cleaner
CN100420416C (zh) * 2006-04-06 2008-09-24 苏州金莱克家用电器有限公司 多进风口分离装置及含有该装置的尘杯装置
US9149165B2 (en) 2012-03-08 2015-10-06 Bissell Homecare, Inc. Vacuum cleaner and vacuum cleaner system
US9717380B2 (en) 2012-03-08 2017-08-01 Bissell Homecare, Inc. Vacuum cleaner
US10398268B2 (en) 2012-03-08 2019-09-03 Bissell Homecare, Inc. Vacuum cleaner
JP2014155901A (ja) * 2013-02-15 2014-08-28 Hiroshima Univ サイクロン式分級装置
WO2017063703A1 (fr) * 2015-10-15 2017-04-20 Alfred Kärcher Gmbh & Co. Kg Aspirateur de nettoyage
WO2017171596A1 (fr) * 2016-03-30 2017-10-05 Husqvarna Ab Soupape de décharge et dispositif de tuyau souple pour collecteurs de poussière, collecteur de poussière, et procédé de fonctionnement de collecteur de poussière
US11197593B2 (en) 2016-03-30 2021-12-14 Husqvarna Ab Relief valve and a hose device for dust collectors, a dust collector and a method for operating a dust collector
US11759067B2 (en) 2016-03-30 2023-09-19 Husqvarna Ab Relief valve and a hose device for dust collectors, a dust collector and a method for operating a dust collector
CN110250998A (zh) * 2019-07-09 2019-09-20 珠海格力电器股份有限公司 分离器及吸尘装置
SE545689C2 (en) * 2020-06-11 2023-12-05 Husqvarna Ab A dust container system for industrial dust extractors, a dust extractor and a dust container holder

Also Published As

Publication number Publication date
SE9700498L (sv) 1998-08-14
SE508525C2 (sv) 1998-10-12
SE9700498D0 (sv) 1997-02-13

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